92 results on '"human presence"'
Search Results
2. The status and conservation needs of the Micronesian Megapode (Megapodius laperouse laperouse) across the Mariana archipelago.
- Author
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Radley, Paul M., Camp, Richard J., Amidon, Frederick A., Marshall, Ann P., Gorresen, P. Marcos, and Kessler, Curt
- Subjects
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PREDATOR management , *ARCHIPELAGOES , *UNGULATES , *ISLANDS , *PREDATORY animals , *ANIMAL populations - Abstract
Context: Accurate baseline data for wildlife populations are important to track trends of these populations over time and to identify threats to their long-term persistence. Aims: We aimed to assess the status and distribution of the little studied megapode (Megapodius laperouse laperouse) across the Mariana Islands. Methods: Using passive and call playback facilitated surveys in 2008 through 2010, we employed point–transect distance sampling to assess island-level and archipelago-wide status of this megapode. To assess conservation needs, we defined human presence as the current, recent, or intermittent occurrence of humans on islands. Key results: We recorded 657 megapode detections and estimated an archipelago level abundance of 11,542 individuals (95% CI: 5456–17,623) from 699 sampling points across 10 islands. Three islands supported 86% of the megapode population, but cumulatively comprise only 2% of the archipelago's land area. Conclusions: Micronesian Megapodes preferred native forest. Human presence and the availability of native forest may limit their abundance and distribution in the Mariana Islands. Although the probability of detecting megapodes was significantly greater on islands without high human presence, significantly more detections were recorded in forests with dense or closed understory on those islands that supported greater human populations. Implications: Given their status and confined distribution in the Mariana Islands, additional studies investigating megapode incubation sites and movement within and between islands would provide fundamental information on megapode ecology and enhance conservation efforts. Continued and expanded ungulate removal, predator control, and habitat restoration would further enhance the likelihood of megapode persistence in the archipelago. We investigated the archipelago-wide status of Micronesian Megapodes (Megapodius laperouse) in the Mariana Islands. Findings indicate that megapode population and distribution in the Mariana Islands are limited by availability of native forest and human presence. We discuss studies of breeding and movement patterns, and removal of introduced ungulates and predators to benefit the species. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Coexistence in multi-use landscape: linking human activities with functional traits of wild mammals in southern India.
- Author
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Behera, Asit K., Kumar, P. Ramesh, Priya, M. Malathi, Zollner, Patrick A., Ramesh, Tharmalingam, and Kalle, Riddhika
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LIFE history theory ,MAMMAL communities ,HUMAN settlements ,MAMMALS ,FOREST reserves ,PREDATION - Abstract
Context: Human presence and land-use activities influence habitat use and activity of species. It is crucial to study the ecological and anthropogenic determinants that drive these relationships. Objectives: We investigated the effects of land-use change and human presence on the habitat use of seven mammalian species and on their activity patterns. Methods: We conducted a camera-trapping survey in Ballari district, India. We deployed camera-traps at 1457 sampling grid cells across Protected Areas (PAs), Reserved Forests (RFs), and adjoining fringe mosaic farmlands (FMFLs). We assessed the influence of 19 covariates related to habitat features, landscape-level human presence, climate, and local-level human presence on species habitat use. We examined the diel activity patterns and activity levels of mammals within different land-use types. Results: Four species exhibited a net negative response to increasing human presence, while three species exhibited positive responses. Respectively, proximity to farmlands, and settlements positively influenced habitat use by Panthera pardus, and Lepus nigricollis,. Increasing direct human presence negatively affected Sus scrofa habitat use. Large body-sized species exhibited higher diurnal activity in PA/RF compared to FMFL while smaller-sized (≤ 2.2 kg) species maintained similar activity patterns across land-use types. Generalist meso-predators exhibited more diurnal activity in RF/FMFL. Conclusions: Ecological and life history traits were strong predictors of species responses to increasing human presence which favoured smaller and generalist species. These insights into the complex mechanisms through which human activities shape mammal communities are important landscape level perspectives on conservation. [ABSTRACT FROM AUTHOR]
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- 2024
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- View/download PDF
4. Through-the-Wall Human Activity Recognition Using Radar Technologies: A Review
- Author
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Jawad Yousaf, Satanai Yakoub, Sara Karkanawi, Taimur Hassan, Eqab Almajali, Huma Zia, and Mohammed Ghazal
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Ultra-wideband (UWB) radar ,IR-UWB radar ,CW-UWB radar ,through-the-wall (TTW) detection ,human motion ,human presence ,Telecommunication ,TK5101-6720 - Abstract
Ultra-wideband radar technology (UWB) has demonstrated its vital role through various applications in surveillance, search and rescue, health monitoring, and the military. Unlike conventional radars, UWB radars use high-frequency, wide-bandwidth pulses, enabling long-range detection and penetrating obstacles. This work presents an in-depth review of UWB radar systems for recognizing human activities in a room and through-the-wall (TTW) with other diverse applications. After briefly discussing different UWB radar working principles and architectures, the study explores their role in various TTW applications in real-world scenarios. An extensive performance comparison of the legacy studies is presented, focusing on detection tools, signal processing, and imaging algorithms. The discussion includes an analysis of the integration of machine learning models. The primary focus is on the detection, movement, monitoring of vital signs, and nonhuman classifications in the context of Through-The-Wall (TTW) scenarios. This study contributes to a better understanding of evolving technology capabilities by integrating artificial intelligence (AI) and robotics to automate and precisely locate the target in various scenarios. Furthermore, the discussion includes the impact of UWB technology on society, future industry trends, the commercial landscape, and ethical issues to understand and future research.
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- 2024
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5. Disentangling vertebrate spatio-temporal responses to anthropogenic disturbances: evidence from a protected area in central Myanmar
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Aye Myat Thu, Tluang Hmung Thang, Ahimsa Campos-Arceiz, and Rui-Chang Quan
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Activity pattern ,camera trap ,Eld's deer ,free-ranging dog ,human presence ,Myanmar ,occupancy ,settlement ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Urbanization of natural landscapes and increasing human populations have brought people and our companion animals into closer contact with wildlife, even within protected areas. To provide guidance for human–wildlife coexistence, it is therefore critical to understand the effects of anthropogenic disturbances and how well native wildlife species survive in human-dominated landscapes. We investigated the spatio-temporal responses of 10 vertebrate taxa, with an emphasis on the Endangered Eld's deer Rucervus eldii thamin, to anthropogenic disturbances in Shwesettaw Wildlife Sanctuary, Myanmar. We quantified anthropogenic disturbances as distance from human settlements, distance from a highway, and the presence of people and free-ranging dogs Canis familiaris. Anthropogenic disturbances had stronger negative impacts on the detection of native wildlife species than on occupancy. Eld's deer avoided areas close to human settlements and showed low diel activity overlap with both people and dogs, although we found a positive association with human presence at the camera-trap sites. Five species exhibited lower diel activity overlap with people in the rainy season when human activity is the highest in our study area. All studied wildlife species shifted to nocturnal activity or did not show any clear activity pattern during the cool-dry season when the presence of dogs increased. The ecological and conservation impacts of dogs are underestimated in South-east Asia, particularly in Myanmar, and this case study highlights the impacts of dogs on the temporal use of habitat by wildlife and the need for better practices in the management of dogs within protected areas.
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- 2023
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6. Disentangling vertebrate spatio-temporal responses to anthropogenic disturbances: evidence from a protected area in central Myanmar.
- Author
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Thu, Aye Myat, Thang, Tluang Hmung, Campos-Arceiz, Ahimsa, and Quan, Rui-Chang
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PROTECTED areas ,VERTEBRATES ,PETS ,WILDLIFE refuges ,DOGS ,NATURAL landscaping ,HUMAN settlements ,HUMAN-animal relationships - Abstract
Urbanization of natural landscapes and increasing human populations have brought people and our companion animals into closer contact with wildlife, even within protected areas. To provide guidance for human–wildlife coexistence, it is therefore critical to understand the effects of anthropogenic disturbances and how well native wildlife species survive in human-dominated landscapes. We investigated the spatio-temporal responses of 10 vertebrate taxa, with an emphasis on the Endangered Eld's deer Rucervus eldii thamin , to anthropogenic disturbances in Shwesettaw Wildlife Sanctuary, Myanmar. We quantified anthropogenic disturbances as distance from human settlements, distance from a highway, and the presence of people and free-ranging dogs Canis familiaris. Anthropogenic disturbances had stronger negative impacts on the detection of native wildlife species than on occupancy. Eld's deer avoided areas close to human settlements and showed low diel activity overlap with both people and dogs, although we found a positive association with human presence at the camera-trap sites. Five species exhibited lower diel activity overlap with people in the rainy season when human activity is the highest in our study area. All studied wildlife species shifted to nocturnal activity or did not show any clear activity pattern during the cool-dry season when the presence of dogs increased. The ecological and conservation impacts of dogs are underestimated in South-east Asia, particularly in Myanmar, and this case study highlights the impacts of dogs on the temporal use of habitat by wildlife and the need for better practices in the management of dogs within protected areas. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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7. Breeding in the pandemic: short-term lockdown restrictions in a European capital city did not alter the life-history traits of two urban adapters.
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Corsini, Michela, Jagiello, Zuzanna, Walesiak, Michał, Redlisiak, Michał, Stadnicki, Ignacy, Mierzejewska, Ewa, and Szulkin, Marta
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LIFE history theory ,STAY-at-home orders ,CAPITAL cities ,ANIMAL clutches ,URBAN animals ,BLUE tit ,GREAT tit - Abstract
Humans are transforming natural habitats into managed urban green areas and impervious surfaces at an unprecedented pace. Yet the effects of human presence per se on animal life-history traits are rarely tested. This is particularly true in cities, where human presence is often indissociable from urbanisation itself. The onset of the SARS-CoV-2 outbreak, along with the resulting lockdown restrictions, offered a unique, "natural experiment" to investigate wildlife responses to a sudden reduction in human activity. We analysed four years of avian breeding data collected in a European capital city to test whether lockdown measures altered nestbox occupancy and life-history traits in terms of egg laying date, incubation duration and clutch size in two urban adapters: great tits (Parus major) and blue tits (Cyanistes caeruleus). Lockdown measures, which modulated human presence, did not influence any of the life-history traits investigated. In contrast, the interaction between year and tree cover, a distinct ecological attribute of the urban space, was positively associated with clutch size, a key avian life-history and reproductive trait. This highlights the importance of inter-year variation and habitat quality over human activity on urban wildlife reproduction. We discuss our results in the light of other urban wildlife studies carried out during the pandemic, inviting the scientific community to carefully interpret all lockdown—associated shifts in biological traits. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
8. Permanent and seasonal human presence in the coastal settlements of Lecce
- Author
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Francesco Curci, Agim Kercuku, Federico Zanfi, and Christian Novak
- Subjects
coastal settlement ,second homes ,unauthorised construction ,human presence ,seasonality ,Transportation engineering ,TA1001-1280 ,Urbanization. City and country ,HT361-384 - Abstract
This paper presents the first results of analyses carried out using mobile phone data on human presence (residents, commuters, visitors) in the coastal territory of Lecce (Italy). The aim of the research, conducted in the framework of the DASTU Project ‘Department of Excellence on Fragile Territories’ in collaboration with the Municipality of Lecce, is to provide precise feedback on the actual use of a coastal territory which is mostly inhabited temporarily, marked by unauthorised building, and threatened by various environmental and climate risks. Starting with an acknowledgement of the limits that traditional census and registry data have in detecting the use of territories characterised by seasonal use and informality, the paper analyses the variations in anthropic presence over multiple years and the incidence of permanent residents. The analyses were carried out using mobile positioning data extracted from the TIM Data Visual Insight (DVI) platform and refer to the period between September 2019 and September 2020. The results show evident heterogeneity among the different coastal settlements. In particular, there are substantial differences between the southern marine (San Cataldo, Torre Veneri, Frigole, Montegrappa) and northern ones (Torre Chianca, Spiaggiabella, Torre Rinalda), where the former show a greater presence of stable residents and a less pronounced seasonal fluctuation. These differences are fundamental for urban planning policies to determine in which areas the retreat of the building from the coast could cause more difficulties and inconveniences.
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- 2022
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9. A glimpse into mobile phone data: characteristics, organization, tools
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Fabio Manfredini, Carmelo Di Rosa, Francesco Fagiani, and Viviana Giavarini
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mobile phone data ,data manipulation ,human presence ,mobilty ,Transportation engineering ,TA1001-1280 ,Urbanization. City and country ,HT361-384 - Abstract
This paper aims to present the presence and mobility data provided by TIM, highlighting the acquisition methodology, the levels of spatial and temporal disaggregation, as well as the additional information related to age groups, gender, and classification of behaviours, which are directly supplied by TIM. The construction of a baseline based on mobile phone data for the comparison of temporal trends in the presence of people is also discussed. At the same time, the supporting data obtained from traditional sources or ad hoc surveys will be presented to show how they can facilitate the interpretation of telephone data, its validation, and its use. Finally, a reference on the operational tools used for their processing and visualization will highlight the need to integrate skills, methodologies, and tools for the maximum exploitation of this wealth of information.
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- 2022
- Full Text
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10. Inspiring tourists' imagination: How and when human presence in photographs enhances travel mental simulation and destination attractiveness.
- Author
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Li, Yuan (William) and Wan, Lisa C.
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PLACE marketing ,ECOTOURISM ,CROSS-cultural studies ,TOURIST attractions ,PHOTOGRAPHS ,TOURISM marketing - Abstract
Due to the intangible nature of tourism products, successful destination marketing depends on whether visual materials can evoke tourists' vivid fantasies of their future travel experiences. Our research sheds light on an effective visual cue (i.e. human presence) that can be easily manipulated in destination photographs to facilitate such mental simulation processes. Across three experimental studies with cross-cultural subjects, we found that the presence of a person in photos significantly prompted tourists to imagine their future travel experiences in the depicted travel scenes, thereby enhancing the perceived destination attractiveness. However, this favorable effect is mitigated when the photo features an urban (vs. natural) landscape and when the person's face is clearly shown. These findings provide new insights into the theoretical understanding of tourist mental simulation activation and human presence perception, with critical implications for effective destination photo marketing. [ABSTRACT FROM AUTHOR]
- Published
- 2025
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11. Humanizing Products with Handwritten Typefaces.
- Author
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Schroll, Roland, Schnurr, Benedikt, and Grewal, Dhruv
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FONTS & typefaces ,DIGITIZATION ,MECHANIZATION ,AUTOMATION ,BOUNDARY value problems ,ATTACHMENT theory (Psychology) ,PACKAGING - Abstract
The loss of a sense of humanness that stems from increasing mechanization, automation, and digitization gives firms an impetus to develop effective ways to humanize products. On the basis of knowledge activation theory, this article systematically investigates a novel humanization approach: the use of typefaces that appear to be handwritten. Across several laboratory and field studies, the authors provide evidence of the positive effect of handwritten typefaces, reveal the mechanisms that lead to these outcomes, and outline some boundary conditions. Specifically, the results show that handwritten typefaces create perceptions of human presence, which lead to more favorable product evaluations (and behavior) by enhancing the emotional attachment between the consumer and the product. However, these effects are mitigated for brands to which consumers already feel a sense of attachment. Finally, the effects reverse when the products are functionally positioned or functional in nature. The present article thus extends understanding of humanization processes and provides guidelines for how and when brands should use handwritten typefaces. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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12. Permanent and seasonal human presence in the coastal settlements of Lecce: An analysis using mobile phone tracking data.
- Author
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Curci, Francesco, Kërçuku, Agim, Zanfi, Federico, and Novak, Christian
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CELL phone tracking ,SEASONS ,URBAN planning ,CELL phones ,URBAN policy ,ENERGY conservation in buildings - Abstract
This paper presents the first results of analyses carried out using mobile phone data on human presence (residents, commuters, visitors) in the coastal territory of Lecce (Italy). The aim of the research, conducted in the framework of the DAStU Project 'Department of Excellence on Fragile Territories' in collaboration with the Municipality of Lecce, is to provide precise feedback on the actual use of a coastal territory which is mostly inhabited temporarily, marked by unauthorised building, and threatened by various environmental and climate risks. Starting with an acknowledgement of the limits that traditional census and registry data have in detecting the use of territories characterised by seasonal use and informality, the paper analyses the variations in anthropic presence over multiple years and the incidence of permanent residents. The analyses were carried out using mobile positioning data extracted from the TIM Data Visual Insight (DVI) platform and refer to the period between September 2019 and September 2020. The results show evident heterogeneity among the different coastal settlements. In particular, there are substantial differences between the southern marine (San Cataldo, Torre Veneri, Frigole, Montegrappa) and northern ones (Torre Chianca, Spiaggiabella, Torre Rinalda), where the former show a greater presence of stable residents and a less pronounced seasonal fluctuation. These differences are fundamental for urban planning policies to determine in which areas the retreat of the building from the coast could cause more difficulties and inconveniences. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
13. Sex-Specific Movement Responses of Reeves's Pheasant to Human Disturbance: Importance of Body Characteristics and Reproductive Behavior.
- Author
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Lu, Shuai, Liu, Zhengxiao, Tian, Shan, Song, Kai, Hu, Qian, Li, Jianqiang, and Xu, Jiliang
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- *
ANIMAL sexual behavior , *PHEASANTS , *ENDANGERED species listing , *PROBABILITY density function , *BROWNIAN bridges (Mathematics) - Abstract
Simple Summary: Human disturbance has a strong impact on the movement of wild animals. The Reeves's Pheasant is listed as an endangered species by the International Union for Conservation of Nature (IUCN) and a nationally protected species in China. This study evaluated how the movement patterns of this species responded to human disturbance. We observed large differences in movement characteristics between sexes during the breeding season of Reeves's Pheasants, and found that reproduction had a significant effect on the movement of females. Males shifted their movement peaks to earlier times in the day to avoid the presence peaks of humans. The greater the distance to human-modified habitat, the higher the movement intensity of males, and the lower the movement intensity of females. This study suggested that the potential impacts of different forms of human disturbance on wildlife should be considered in future conservation planning. Human disturbance has a strong impact on the movement of wild animals. However, it remains unclear how the movement patterns of the Reeves's Pheasant (Syrmaticus reevesii) respond to human disturbance in human-dominated landscapes. We tracked the movement of 40 adult individual Reeves's Pheasants during the breeding season, and used the dynamic Brownian bridge motion model and kernel density estimation to analyze the diurnal movement patterns of Reeves's Pheasants and their response to human presence. We analyzed the paths of Reeves's Pheasants based on a partial least squares path model, considering habitat conditions, body characteristics, and reproductive behaviors. We found that males had two clear diurnal movement peaks, whereas reproductive and non-reproductive females did not show such movement peaks. Males shifted their movement peaks to earlier times in the day to avoid the presence peaks of humans. The correlation between human-modified habitat and the movement intensity of Reeves's Pheasant differed between sexes. For males, the distance to forest paths had a positive correlation with their movement intensity through affecting body conditions. For females, the distance to forest paths and farmland had a negative correlation with their movement intensity through affecting habitat conditions and reproductive behaviors. Our study provides a scientific basis for the protection of the Reeves's Pheasant and other related terrestrial forest-dwelling birds. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
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14. PRESENCE OF ALIEN PRUNUS SEROTINA AND IMPATIENS PARVIFLORA IN LOWLAND FOREST FRAGMENTS IN NE SLOVENIA.
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ŠIPEK, Mirjana, HORVAT, Eva, KOSIĆ, Ivana VITASOVIĆ, and ŠAJNA, Nina
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BLACK cherry ,INTRODUCED plants ,TEMPERATE forests ,ANNUALS (Plants) ,VEGETATION surveys - Abstract
Copyright of Journal of Forestry Society of Croatia / Sumarski List Hrvatskoga Sumarskoga Drustva is the property of Forestry Society of Croatia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
15. Humans Are More Influential Than Coyotes on Mammalian Mesopredator Spatiotemporal Activity Across an Urban Gradient
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Chad W. Moura, Barbara Clucas, and Brett J. Furnas
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human presence ,mesopredators ,overlap ,spatiotemporal activity ,urban gradient ,Evolution ,QH359-425 ,Ecology ,QH540-549.5 - Abstract
For mammalian mesopredators, human-dominated landscapes offer a mosaic of risk and reward. While the reward of anthropogenic food resources may attract mesopredators to human-dominated areas, increased mesopredator activity and abundance in these areas may cause interspecific conflict. For smaller-bodied mesopredators, the perceived risk of intraguild predation by larger mesopredators may be enough to drive spatial and temporal avoidance strategies to reduce risk while still benefiting from anthropogenic resources. We evaluated how the spatiotemporal activity of four non-canid mammalian mesopredators – raccoon (Procyon lotor), striped skunk (Mephitis mephitis), opossum (Didelphis virginiana), and domestic cat (Felis catus) – might change in the presence of an intraguild predator, the coyote (Canis latrans), and a “super predator,” humans. We quantified mesopredator activity by deploying camera traps at 110 sites across an urban gradient in the Sacramento Metropolitan Area in central California, USA. We hypothesized that mesopredators would likely change their spatiotemporal activity in response to urban intensity (H1), coyotes (H2), human presence (H3), and if urban intensity might mediate the response to humans and coyotes (H4). We used single-species occupancy models to test how mesopredators responded to different spatial scales of urbanization, as well as the temporal presence of coyotes and humans. Top single-species models then informed two-species conditional occupancy models to evaluate how mesopredators responded to “dominant” coyotes. Finally, we used temporal overlap analyzes to evaluate whether activity patterns of mesopredators changed in response to humans and coyotes across three levels of urban intensity. Mesopredators did not change their spatial or temporal activity across the urban gradient when coyotes were present. Additionally, coyotes did not influence mesopredator temporal activity at 1-3-day scales; however, raccoons and cats may avoid coyotes at finer scales. Humans influenced mesopredator detectability, as cats and coyotes avoided humans after 1 and 2 days respectively, and opossums avoided urban areas when humans were present within 3 days. Coyotes may play a limited role in altering smaller-bodied mesopredator activity, especially when humans are present. While the impacts of human presence and urban features are often linked, mesopredators may perceive the risk each poses differently, and adjust their activity accordingly.
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- 2022
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16. Woolly-Necked Stork (Ciconia episcopus) Activity Budget in Lowland Nepal's Farmlands: The Influence of Wetlands, Seasonal Crops, and Human Proximity.
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Ghimire, Prashant, Pandey, Nabin, Timilsina, Yajna Prasad, Bist, Bhuwan Singh, and Gopi Sundar, K. S.
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WHITE stork ,STORKS ,WETLANDS ,RECURSIVE partitioning ,SEASONS - Abstract
Tropical farmlands experience dramatic seasonal variations in landscape conditions and have continuous human presence, providing potentially challenging settings for resident waterbirds. Behavior of the globally threatened Woolly-necked Stork (Ciconia episcopus) was studied for two seasons (monsoon and winter, 2018–2019) in lowland Nepal to assess how storks coped with changing conditions on farmlands. Activity budgets were prepared from 582 min of video, and recursive partitioning was used to identify variables that affected two critical activities: foraging and vigilance. Foraging was a dominant activity (32 ± 33%) with relatively little percent time spent being vigilant (10 ± 19%). Woolly-necked Storks reduced percent foraging time when they foraged closer (25.8 ± 36.3%) compared to farther (35.8 ± 31.8%) from wetlands. Percent foraging time was reduced during the winter (30.6 ± 35.2%) compared to monsoon (35.1 ± 32.2%), suggesting improved foraging conditions. Percent time spent foraging increased closer to humans, suggesting lower efficiency. Percent time being vigilant decreased closer to wetlands, suggesting reduced disturbance. Wetlands and drier cropfields with human presence were relatively high-value habitats. Woolly-necked Storks coped with changing seasonal conditions in lowland Nepal's farmlands by altering activity budgets in relatively minor ways identical to alterations made by similar species in wild habitats. This work adds to growing literature showcasing the multifunctional value of tropical agricultural landscapes and underscoring the need to move away from assuming that agriculture is uniformly detrimental for large waterbirds. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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17. When imperfect is preferred: the differential effect of aesthetic imperfections on choice of processed and unprocessed foods.
- Author
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Suher, Jacob, Szocs, Courtney, and van Ittersum, Koert
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IMPERFECT competition ,IMPERFECTION ,UNPROCESSED foods ,PROCESSED foods ,FRUIT ,VEGETABLES ,FOOD preferences - Abstract
Some companies design processed foods to contain aesthetic imperfections such as non-uniformities in shape, color, or texture. Simultaneously, consumers annually discard millions of pounds of unprocessed, safe-to-eat fruits and vegetables owing to aesthetic imperfections. Why design processed foods with aesthetic imperfections when people discard unprocessed foods because of them? Seven studies, including a choice study at a grocery store and an incentive-compatible study, show that the effect of aesthetic imperfections on consumer preferences depends on whether foods are unprocessed or processed. While imperfections negatively influence preferences for unprocessed foods, they positively influence preferences for processed foods. We attribute this preference shift to consumers making opposing inferences about the human care involved in producing aesthetically imperfect processed and unprocessed foods. Building on research highlighting the positive effects of human presence in production, we thus show that perceived care drives food choice. We discuss implications for product design, retail promotion, and sustainability. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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18. Field studies of the Artificial Intelligence model for defining indoor thermal comfort to acknowledge the adaptive aspect.
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Karyono, Kanisius, Abdullah, Badr M., Cotgrave, Alison, Bras, Ana, and Cullen, Jeff
- Subjects
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ARTIFICIAL neural networks , *THERMAL comfort , *ARTIFICIAL intelligence , *FIELD research , *NATURAL ventilation , *SUPERVISED learning - Abstract
Numerous Artificial Intelligence (AI) solutions are available for achieving thermal comfort. They were either trained with limited datasets or using personalized training with limited field studies. This work assessed the model that used the ASHRAE multiple databases as the shallow supervised learning dataset for an Artificial Neural Network (ANN) based controller suitable for the residential dwellings' node. The learning accuracy can be increased to 96.1%. This paper presented the field studies to show the model performances for the common UK dwellings: the prior 1970s, the new, modular, refurbished, and the use of new materials to improve indoor thermal performance. The result shows that the model was able to perform in different environments and able to acknowledge adaptive human comfort. This was shown by the ability to represent 98.90% of the ASHRAE Standard 55 data, 6.06% improvement from the previous research. As a result, the broader comfort zone acknowledgement can lead to energy saving whilst maintaining comfort by the possibility of lowering the temperature set point. This study also proves that further energy savings can be acquired from the occupants' presence, scheduling, and activities. These factors can increase the comfort probability to more than 10%. [Display omitted] • This paper addresses the gap between the physiology and the psychology thermal comfort approach, dominated by AI solutions. • The work shows a wider comfort zone which has been identified to become progressively narrower over the past several decades. • The field studies represent major UK-dwelling cases that weren't addressed in the previous Artificial Intelligence approach. • The occupant presence and scheduling can contribute to more than a 10% increase in comfort which impacts energy saving. • This work highlights the possibility of achieving indoor thermal comfort with less energy for more sustainable dwellings. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
19. Effects of Human Presence and Movement on Received Signal Strength Levels in a 2.4 GHz Wireless Link: An Experimental Study
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Wounchoum, Phairote, Vanichpattarakul, Thanchanok, Dumumpai, Kittitorn, Chaoboworn, Vasin, Saito, Hiroshi, and Booranawong, Apidet
- Published
- 2022
- Full Text
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20. Quantifying human presence in a heterogeneous urban landscape.
- Author
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Corsini, Michela, Marrot, Pascal, and Szulkin, Marta
- Subjects
- *
GREAT tit , *KEYSTONE species , *URBAN ecology , *HUMAN behavior , *URBAN plants - Abstract
Humans are a keystone species in urban ecosystems. Although the impact of human activities is increasingly reported in behavioral and evolutionary ecology, little is known about the effects of physical human presence per se. Of particular relevance is the extent to which human presence (sometimes referred to as human disturbance), is repeatable across the urban mosaic over time. We quantified human presence at fixed locations—here in a 15-m radius of great tit nestboxes—within six urban and suburban study sites. While overall human presence did not differ between urban sites, it was significantly higher than in the suburban village. Moreover, considerable variance between fixed locations was observed within each site. We reported overall high repeatability of human presence for all sites (0.57 < R < 0.88, mean: 0.76, median: 0.77). We further simulated datasets of human presence made of an increasing number of counts, and demonstrated that 10 counts of human presence (each 30 s long) made at each fixed location can generate a highly reliable indicator of human presence (R ≥ 0.6) for any urban site. We thus confirm that human presence is repeatable across the urban mosaic, thereby offering consistent cues to urban wildlife of human presence or absence in space and time. Importantly, our approach of human presence quantification allows for an effort-efficient approach to understand the effects of physical human presence at designated temporal timeframes, thereby allowing to reliably test the effects of human presence on the behavior and ecology of urban wildlife. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
21. Handwritten Typefaces as a Novel Strategy to Humanize Products.
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Schroll, Roland and Schnurr, Benedikt
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HUMANITY ,PACKAGING ,FONTS & typefaces - Abstract
Copyright of Transfer: Zeitschrift für Kommunikation & Markenmanagement is the property of Deutsche Werbewissenschaftliche Gesellschaft and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
- Full Text
- View/download PDF
22. Measuring Hydrogen in Indoor Air with a Selective Metal Oxide Semiconductor Sensor
- Author
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Caroline Schultealbert, Johannes Amann, Tobias Baur, and Andreas Schütze
- Subjects
hydrogen ,indoor air ,human presence ,metal oxide semiconductor gas sensors ,indoor air quality ,Meteorology. Climatology ,QC851-999 - Abstract
Hydrogen is a ubiquitous but often neglected gas. In analytical measurements hydrogen—as a harmless gas—often is not considered so no studies on hydrogen in indoor air can be found. For metal oxide semiconductor (MOS) gas sensors that are increasingly pushed into the application as TVOC (total volatile organic compounds) sensors, hydrogen is a severe disturbance. On the other hand, hydrogen can be an intentional choice as indicator for human presence similar to carbon dioxide. We present a field-study on hydrogen in indoor air using selective MOS sensors accompanied by an analytical reference device for hydrogen with an accuracy of 10 ppb. Selectivity is achieved by siloxane treatment combined with temperature cycled operation and training with a complex lab calibration using randomized gas mixtures, yielding an uncertainty of 40–60 ppb. The feasibility is demonstrated by release tests with several gases inside a room and by comparison to the reference device. The results show that selective MOS sensors can function as cheap and available hydrogen detectors. Fluctuations in hydrogen concentration without human presence are measured over several days to gain insight in this highly relevant parameter for indoor air quality. The results indicate that the topic needs further attention and that the usage of hydrogen as indicator for human presence might be precluded by other sources and fluctuations.
- Published
- 2021
- Full Text
- View/download PDF
23. Coming to Terms with Our Musical Past
- Author
-
Goehring, Edmund J.
- Subjects
Musical Past ,Mozart ,Modernist Aesthetics ,Western Art Music ,Idealism ,Human Sociability ,Literature ,Performing Arts ,Visual Arts ,Philosophy ,Interpretation ,Cultural ,Artistic ,Human Presence ,bic Book Industry Communication::A The arts::AV Music::AVH Individual composers & musicians, specific bands & groups ,bic Book Industry Communication::A The arts::AV Music::AVG Music: styles & genres::AVGC Western "classical" music ,bic Book Industry Communication::A The arts::AV Music::AVG Music: styles & genres::AVGC Western "classical" music::AVGC4 Classical music (c 1750 to c 1830) ,bic Book Industry Communication::H Humanities::HP Philosophy::HPN Philosophy: aesthetics - Abstract
A bold, restorative vision of Mozart's works, and Western art music generally, as manifestations of an idealism rooted in the sociable nature of humans. For over a generation now, many leading performers, critics, and scholars of Mozart's music have taken a rejection of transcendence as axiomatic. This essentially modernist, antiromantic orientation attempts to neutralize the sorts of aesthetic experiences that presuppose an enchantment with Mozart's art, an engagement traditionally articulated by such terms as intention, mimesis, author, and genius. And what is true of much recent Mozart interpretation isoften manifest in the interpretation of Western art music more generally. Edmund Goehring's Coming to Terms with Our Musical Past explores what gets lost when the vocabulary of enchantment is abandoned. The bookthen proceeds to offer an alternative vision of Mozart's works and of the wider canon of Western art music. A modernized poetics, Goehring argues, reduces art to mechanism or process. It sees less because it excludes a necessaryand enlarging human presence: the generative, and receiving, "I." This fascinating new book-length essay is addressed to any reader interested in the performing arts, visual arts, and literature and their relationship to the broader culture. Goehring draws on seminal thinkers in art criticism and philosophy to propose that such works as Mozart's radiate an idealism that has human sociability both as its source and its object. This book is available as an Open Access eBook under the Creative Commons license: CC BY-NC.
- Published
- 2018
24. The Impact of Human Presence on Terrestrial Mammals in Secondary Regenerating Forest of the Peruvian Amazon
- Author
-
Pandya, Duncan
- Subjects
Ekologi ,Neotropics ,diversity index ,camera traps ,Ecology ,human presence ,species richness ,terrestrial mammals - Abstract
Human disturbance is becoming an ever-bigger threat to biodiversity across the globe and should continue to be a field of conservation priority. Urbanisation, research and tourism put unavoidable pressure on the surrounding flora and fauna, therefore we need to gain knowledge on how to reduce future harm. Here we investigated the effects of human presence on medium-large terrestrial mammals in the south-eastern Peruvian Amazon, using camera traps to measure the number of human and mammal observations at varying distances from our research centre and the hiking trails. Species richness and the Shannon and Inverse Simpson diversity indices were also calculated during the four-month study period. Nineteen species were detected across fourteen camera sites. Distance from camp was positively correlated with species richness and the diversity indices, but showed no correlation with total mammal observations. Distance from nearest trail was negatively correlated with species richness, total mammal observations and the diversity indices. Total human observations was negatively correlated with species richness and the diversity indices, but had no impact on total mammal observations. Nevertheless, these results often had high p-values and low sample size and therefore should be interpreted with caution. Omnivores were the most sensitive trophic guild, showing a statistically significant negative correlation with total human observations, and a statistically significant positive correlation with distance from nearest trail. It is important then to assess these responses to human disturbance at the community and species level, as to truly understand the impact we are having.
- Published
- 2023
25. Effect of Site Attributes and Matrix Composition on Neotropical Primate Species Richness and Functional Traits: A Comparison Among Regions
- Author
-
Bayron R. Calle-Rendón, Renato R. Hilário, and José Julio de Toledo
- Subjects
habitat loss ,human presence ,matrix ,Neotropical sub-regions ,primate conservation ,Biology (General) ,QH301-705.5 - Abstract
Fragmentation threatens biodiversity and forest-dwelling animals can be especially vulnerable. Neotropical primates inhabit forests and play ecological roles in maintaining forest biodiversity. Currently, many primate communities are restricted to forest fragments. We (1) evaluated the influence of environmental, matrix, and site attributes on species richness and functional traits of primates in the Neotropics; and (2) evaluated the effect of the sub-region on the relationships between primates and environmental, matrix, and site attributes. We conducted literature searches to find published data on primate communities in forest fragments throughout the Neotropics. Each fragment was assigned to 1 of 11 sub-regions: Mesoamerica, Tumbes-Chocó-Magdalena, Caribbean, Orinoco, Amazon, Atlantic Forest, Cerrado, Chaco, Andes, Caatinga, and Pampa. Based on actual and expected species occurrences, we calculated the proportion of primate species retained in the fragments, the mass retained, and dietary items retained considering reproductive and vegetative plant parts and prey. We used linear mixed models to correlate primate variables with environmental, matrix, and site attributes. Fragment area was more important for primate retention than environmental, matrix, and site attributes, with primate retention being higher in larger fragments. Fragment size was positively correlated with all primate variables, except for retention of prey consumption, whose retention decreased as water bodies and density of buildings in the matrix increased. Fragments within protected areas retained larger species than unprotected fragments. The proportion of extant mass retained and vegetative plant parts in the diet were highest in Mesoamerica and lowest in the Atlantic Forest. Conservation planning of Neotropical primates should consider both the differences among sub-regions, forest restoration to increase fragment size, and the creation of new protected areas, even in fragmented landscapes.
- Published
- 2019
- Full Text
- View/download PDF
26. Evaluating the impact of Homo-carnivore competition in European human settlements during the early to middle Pleistocene.
- Author
-
Rodríguez-Gómez, Guillermo, Rodríguez, Jesús, Martín-González, Jesús A., and Mateos, Ana
- Subjects
- *
COMPETITION (Psychology) , *PREHISTORIC peoples , *PREHISTORIC settlements , *CONSUMERS , *PLEISTOCENE Epoch - Abstract
Fossil remains and the technological complexes recorded in archaeological sites suggest that the human presence in Europe late in the early and middle Pleistocene was discontinuous. Moreover, competition for meat with other secondary consumers could have delayed the human dispersal through Europe. However, evaluation of the extent competition intensity among secondary consumers suggests this influenced the discontinuity of the human settlement of Europe between 1.1 and 0.2 Ma. Using a mathematical model, we estimate the amount of biomass available in a community for secondary consumers. The amount of available biomass is subsequently distributed among the guild of secondary consumers according to their requirements and prey preferences. Indexes that quantify the competition intensity among secondary consumers to compare the conditions in different paleoecosystems show that the competition intensity late in the early Pleistocene, early in the middle Pleistocene, and late in the middle Pleistocene does not support the view that an increase in competition intensity constrained the expansion of human populations early in the middle Pleistocene. Somewhat paradoxically, the lowest competition intensity is estimated to have occurred early in the middle Pleistocene, most likely because of an increase in the number of large herbivore species and a decrease in the number of secondary consumers. The early Pleistocene paleoecosystems supported higher competition intensity than the middle Pleistocene ecosystems, likely because of the different configuration in the food webs of these two periods (the early and middle Pleistocene). [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
27. Ecological factors affecting wetland occupancy by breeding Anatidae in the southwestern mediterranean.
- Author
-
Cherkaoui, Sidi, Selmi, Slaheddine, and Hanane, Saâd
- Subjects
- *
WETLAND ecology , *BIRD breeding , *ANATIDAE , *BIRD conservation , *HABITATS - Abstract
Conservation of Anatidae in North Africa is hindered by lack of information concerning population size, population trends, and species-habitat relationships. In this work, we used a 2-year survey data in 25 wetlands distributed throughout Morocco to model duck spatial distribution and to assess the relevance of a set of environmental and anthropogenic factors in predicting site occupancy, by means of Generalized Linear Mixed Models (GLMM). Mallards and Ferruginous ducks were the most commonly detected species, whereas White-Headed Ducks and Common Pochards were the least detected ones. An inter-annual variation in site occupancy was recorded for Ruddy Shelducks, Red-Crested Pochards and White-Headed Ducks. Geographical location (measured mainly as distance to the coastline and altitude) was the major predictor of the occurrence probability of Ruddy Shelducks, Marbled Teals and Red-Crested Pochards, while human presence and habitat features were the most relevant factors in shaping Mallard's distribution. However, none of the considered environmental and anthropogenic factors explained the distribution patterns of the Ferruginous Duck, Common Pochard and Gadwall. The results of this study clearly show that there are still gaps in our knowledge on factors driving wetland occupancy by breeding Anatidae in Morocco. The pursuit of the investigations, while considering other explanatory factors such as water quality (limnological data), diet, predation, and conservation status, is of great importance to more profoundly understand the dynamics of Moroccan duck populations. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
28. Fade Depth Prediction Using Human Presence for Real Life WSN Deployment
- Author
-
G. Horvat, S. Rimac-Drlje, and D. Zagar
- Subjects
Fade depth prediction ,human presence ,human density ,received strength signal indicator ,wireless sensor networks ,ZigBee ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
Current problem in real life WSN deployment is determining fade depth in indoor propagation scenario for link power budget analysis using (fade margin parameter). Due to the fact that human presence impacts the performance of wireless networks, this paper proposes a statistical approach for shadow fading prediction using various real life parameters. Considered parameters within this paper include statistically mapped human presence and the number of people through time compared to the received signal strength. This paper proposes an empirical model fade depth prediction model derived from a comprehensive set of measured data in indoor propagation scenario. It is shown that the measured fade depth has high correlations with the number of people in non-line-of-sight condition, giving a solid foundation for the fade depth prediction model. In line-of-sight conditions this correlations is significantly lower. By using the proposed model in real life deployment scenarios of WSNs, the data loss and power consumption can be reduced by the means of intelligently planning and designing Wireless Sensor Network.
- Published
- 2013
29. Late Quaternary Extinctions in Australasia : An Overview
- Author
-
Flannery, T. F., Roberts, R. G., MacPhee, Ross D. E., editor, and Sues, Hans-Dieter, editor
- Published
- 1999
- Full Text
- View/download PDF
30. Presence of alien Prunus serotina and Impatiens parviflora in lowland forest fragments in NE Slovenia
- Author
-
Mirjana Šipek, Nina Šajna, Ivana Vitasović Kosić, and Eva Horvat
- Subjects
biological invasions ,forest fragmentation ,landscape metrics ,habitat characteristics ,human presence ,neophytes ,biological invasions, forest fragmentation, landscape metrics, habitat characteristics, human presence, neophytes ,Forestry ,biološke invazije ,fragmentacija šuma ,metrika krajobraza ,karakteristike staništa ,ljudska prisutnost ,neofiti - Abstract
Temperate alluvial, riparian and lowland forests are the European forests with the greatest presence of invasive alien plants. Consequently, identifying the environmental conditions for and other drivers behind the establishment of invasive species in natural forest communities is crucial for understanding the invasibility of these habitats. We focused on fragments (patches) of Illyrian oak-hornbeam forest in NE Slovenia, which are the least studied in this regard.Because alien phanerophytes and therophytes are significantly over-represented compared to native plants in lowland forests, we selected two representative invasives: the phanerophyte Prunus serotina and the therophyte Impatiens parviflora. By using logistic regression models on vegetation surveys, environmental data based on Ellenberg´s indicator values, and patch metrics, we identified patch characteristics explaining the presence of each species. Moreover, we included human impact in the models.We reveal significant characteristics differentiating P. serotina from I. parviflora. We also show that the perimeter-area ratio and soil nutrients of the forest patches correlate significantly with the presence of P. serotina, while human disturbance correlates significantly with the presence of I. parviflora. Our results and a similar approach for other invasive plant species can be applied to assess habitat invasibility on potential and species’ current geographic distribution, as well as to develop management plans., Aluvijalne, priobalne i nizinske šume umjerenih područja europske su šume s najvećom prisutnošću invazivnih stranih biljaka. Slijedom toga, utvrđivanje okolišnih uvjeta i drugih pokretača invazije tih vrsta u prirodnim šumskim zajednicama presudno je za razumijevanje izloženosti ovih staništa invazivnim vrstama. Fokusirali smo se na fragmente ilirske šume hrasta kitnjaka i običnog graba u SI Sloveniji, koje su u tom pogledu najmanje proučavane.Budući da su alohtoni fanerofiti i terofiti znatno prezastupljeni u usporedbi s autohtonim vrstama u nizinskim šumama, odabrali smo dvije reprezentativne invazivne vrste: fanerofit Prunus serotina i terofit Impatiens parviflora. Korištenjem logističkih regresijskih modela na vegetacijskim podacima, okolišnim podacima na temelju Ellenbergovih indikatorskih vrijednosti i krajobrazne metrike na razini fragmenata (zakrpi), identificirali smo karakteristike fragmenata šumske vegetacije koji objašnjavaju prisutnost svake vrste. Štoviše, u modele smo uključili utjecaj čovjeka.Otkrivene su značajne karakteristike koje međusobno razlikuju invazivnost vrsta P. serotina i I. parviflora. Također pokazalo se da omjer površine i hranjive tvari šumskih fragmenata značajno koreliraju s prisutnošću vrste P. serotina, dok antropogeni poremećaj staništa značajno korelira s prisutnošću vrste I. parviflora. Naši rezultati te sličan pristup za druge invazivne biljne vrste mogu se primijeniti za procjenu podložnostistaništa na potencijalnu i trenutnu rasprostranjenost tih vrsta, kao i za izradu planova upravljanja.
- Published
- 2022
31. Beyond Narcissistic Humanism: Or, in the Face of Anthropogenic Climate Change, Is There a Case for Voluntary Human Extinction?
- Author
-
Wood, David, author
- Published
- 2019
- Full Text
- View/download PDF
32. Vervet monkey (Chlorocebus pygerythrus) alarm calls to leopards (Panthera pardus) function as a predator deterrent.
- Author
-
Isbell, Lynne A. and Bidnera, Laura R.
- Subjects
- *
CERCOPITHECUS aethiops behavior , *PREDATION , *ANIMAL sound recording & reproducing , *ACOUSTICS , *GLOBAL Positioning System - Abstract
Behavioural predator-prey interactions are difficult to study, especially when predators avoid humans. To gain greater understanding of their dynamism, we conducted a 14-month field study in which we minimized human presence by employing acoustic recorders and camera traps, along with GPS collars deployed on vervet monkeys (Chlorocebus pygerythrus) and leopards (Panthera pardus) in Laikipia, Kenya. Recordings at the vervets' sleeping site revealed that they gave 'leopard' alarm calls most frequently near dusk and dawn, whereas photographs showed that leopards approached vervets more closely at night, when the monkeys alarm-called less often. GPS data showed that after vervets alarm-called, leopards within 200 m quickly moved away, changing direction, but when vervets did not alarm-call, leopards continued moving forward. These results reveal that vervets' leopard alarm calls function as a predator deterrent in addition to a conspecific warning call. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
33. Object Detection for Agricultural and Construction Environments Using an Ultrasonic Sensor.
- Author
-
Dvorak, J. S., Stone, M. L., and Self, K. P.
- Subjects
AGRICULTURAL equipment ,DETECTORS ,ULTRASONIC equipment - Abstract
This study tested an ultrasonic sensor's ability to detect several objects commonly encountered in outdoor agricultural or construction environments: a water jug, a sheet of oriented strand board (OSB), a metal fence post, a human model, a wooden fence post, a Dracaena plant, a juniper plant, and a dog model. Tests were performed with each target object at distances from 0.01 to 3 m. Five tests were performed with each object at each location, and the sensor's ability to detect the object during each test was categorized as "undetected," "intermittent,'' "incorrect distance," or "good.'' Rigid objects that presented a larger surface area to the sensor, such as the water jug and OSB, were better detected than objects with a softer surface texture, which were occasionally not detected as the distance approached 3 m. Objects with extremely soft surface texture, such as the dog model, could be undetected at almost any distance from the sensor. The results of this testing should help designers of future systems for outdoor environments, as the target objects tested can be found in nearly any agricultural or construction environment. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
34. Squatting outside the world: notes for an architecture of ethics
- Author
-
Steven Schroeder
- Subjects
place ,Aristotle ,Marx ,city ,human presence ,Architecture ,NA1-9428 - Abstract
Mind takes place in the world, and that matters. We are bodies among bodies, and, no matter what we think, what we do is a matter of where. And thinking about where is a problem for architecture. Richard Luecke’s pithy summary of Aristotle’s Politics was that we go to the city to live but stay to live the good life. The interplay of going and staying takes up a critical theme of Aristotle’s work. To understand the world, he said, we must understand both motion and stasis – not the going alone but the staying that takes place in the middle of it. Luecke took up William James’s figure of perchings in the flight of a bird and put it to work in thinking about cities. The city is a perch for the winged thing we are. To understand our flight, we must also attend to our perching. Aristotle speaks of the city as a place to go and a place to stay, but he also speaks of it as a koinonia turned toward good. That marks it as being human. Aristotle directs our attention to the necessity of the city (we go to live) and to its good (we stay to live the good life). But the staying, the dwelling, is understood within a structure of action: the good is that toward which all things aim. Dwelling, still, we turn. Which qualifies the going, because we are political animals. Going to the city to live, we go nowhere other than where we are. The city is the form of human presence.
- Published
- 2014
- Full Text
- View/download PDF
35. The Lower Palaeolithic site Alto de las Picarazas (Andilla-Chelva, Valencia).
- Author
-
Vicente Gabarda, M., Martínez Valle, R., Guillem Calatayud, P.M., Garay Martí, P., Pueyo, E., and Casabó, J.
- Subjects
- *
PALEOLITHIC Period , *KARST , *PLEISTOCENE Epoch , *BONES , *MICROTUS pliocaenicus , *CHRONOLOGY - Abstract
This paper describes the Alto de las Picarazas site (Andilla-Chelva, Valencia) which is made up of a group of karst cavities that contains Lower and Middle Pleistocene deposits. In Cavity I, a wide Early Pleistocene sequence under a Middle Pleistocene deposit has been preserved. In Stratum IV, evidence of human presence, such as lithic industry and mammal bones with butchery marks, has been found. Remains of Allophaiomys ruffoi and Soergelia minor in this stratum give the site a Early Pleistocene chronology. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
36. Tolerance to anthropogenic disturbance by a large carnivore: the case of Eurasian lynx in south-eastern Norway.
- Author
-
Bouyer, Y., Gervasi, V., Poncin, P., Beudels‐Jamar, R. C., Odden, J., and Linnell, J. D. C.
- Subjects
- *
CARNIVOROUS animals , *HOME range (Animal geography) , *LAND sparing & land sharing (Agriculture) , *CONSERVATION biology , *BIODIVERSITY , *ANIMAL species - Abstract
The relative merits of land sparing versus land sharing are being debated within conservation biology. While the debate is multifaceted, a central issue concerns the ability of biodiversity to actually persist in 'shared' human-dominated landscapes. There is a widespread perception that large predators are synonymous with wilderness and have a low tolerance for human-modified landscapes. However, there is an increasing body of evidence that is questioning this paradigm. In order to explore the tolerance levels of Eurasian lynx to human activity, we have analysed data on 49 lynx home ranges in south-eastern Norway occupying a gradient of landscapes from near wilderness to the urban-forest interface. Our results indicate that lynx have the ability to tolerate relatively high levels of human presence both within their home ranges and within the immediate surroundings of their home ranges. Home-range orientations reflect preference for areas associated with low levels of human-induced habitat modification, and avoidance of the more heavily disturbed areas. The results show that lynx have a large potential to exist in shared landscapes if their presence is tolerated by people. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
37. A new tool to trace past human presence from lake sediments: the human-specific molecular marker Bacteroides strain HF 183.
- Author
-
MADEJA, JACEK
- Subjects
LAKE sediments ,SEDIMENTATION & deposition ,BACTEROIDES ,POLYMERASE chain reaction ,GENETIC markers ,ANTHROPOGENIC soils - Abstract
ABSTRACT This study presents the results of molecular and palynological analyses of 172 lake sediment samples. By employing a protocol for the semi-nested polymerase chain reaction using primers for the human-specific Bacteroides strain HF 183, the DNA of this group of bacteria, which are highly specific markers of faecal pollution of human origin, was identified. The DNA of this bacteria group identified in the sediment bears witness to the past presence of human groups near the lake. The results of completed molecular analyses were collated with palynological data, allowing the vegetation transformations to be reconstructed, including transformations occurring under the influence of human activity. The results obtained show that genetic markers of human presence deposited in lake sediments can form a source of valuable information, allowing phases of human presence in the past, and thus the impact of human on plant associations, to be reconstructed in detail. The combination of both palynological and molecular data originating from the same source (lake sediments) allows for comparison of information about anthropogenic changes to the environment at a regional scale (palynological data) with those recorded at the local scale in the immediate vicinity of the studied lake (molecular data). [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
38. Measuring Hydrogen in Indoor Air with a Selective Metal Oxide Semiconductor Sensor
- Author
-
Schultealbert, Caroline, Amann, Johannes, Baur, Tobias, and Schütze, Andreas
- Subjects
metal oxide semiconductor gas sensors ,hydrogen ,lcsh:Meteorology. Climatology ,indoor air ,human presence ,lcsh:QC851-999 ,indoor air quality - Abstract
Hydrogen is a ubiquitous but often neglected gas. In analytical measurements hydrogen—as a harmless gas—often is not considered so no studies on hydrogen in indoor air can be found. For metal oxide semiconductor (MOS) gas sensors that are increasingly pushed into the application as TVOC (total volatile organic compounds) sensors, hydrogen is a severe disturbance. On the other hand, hydrogen can be an intentional choice as indicator for human presence similar to carbon dioxide. We present a field-study on hydrogen in indoor air using selective MOS sensors accompanied by an analytical reference device for hydrogen with an accuracy of 10 ppb. Selectivity is achieved by siloxane treatment combined with temperature cycled operation and training with a complex lab calibration using randomized gas mixtures, yielding an uncertainty of 40–60 ppb. The feasibility is demonstrated by release tests with several gases inside a room and by comparison to the reference device. The results show that selective MOS sensors can function as cheap and available hydrogen detectors. Fluctuations in hydrogen concentration without human presence are measured over several days to gain insight in this highly relevant parameter for indoor air quality. The results indicate that the topic needs further attention and that the usage of hydrogen as indicator for human presence might be precluded by other sources and fluctuations.
- Published
- 2021
39. The extended avian urban phenotype: anthropogenic solid waste pollution, nest design, and fitness.
- Author
-
Jagiello, Zuzanna, Corsini, Michela, Dylewski, Łukasz, Ibáñez-Álamo, Juan Diego, and Szulkin, Marta
- Published
- 2022
- Full Text
- View/download PDF
40. Cortisol metabolites vary with environmental conditions, predation risk, and human shields in a wild primate, Cercopithecus albogularis.
- Author
-
LaBarge, Laura R., Allan, Andrew T.L., Berman, Carol M., Hill, Russell A., and Margulis, Susan W.
- Subjects
- *
PREDATION , *ECOLOGICAL disturbances , *HYDROCORTISONE , *PRIMATES , *WATER shortages , *RISK perception - Abstract
Environmental challenges are often associated with physiological changes in wildlife that allow animals to maintain homeostasis. Among these, scarcity in resources, and risks from predators, competitors, and humans can all result in psychological and physiological stress. Yet, for habituated species, it is not clear whether this relationship with humans still holds to a lesser degree or is outweighed by the benefits of human presence – such as serving as a buffer from competitors or predators. We investigated how human presence and environmental challenges such as resource availability, weather, predation, and competition may be associated with variation in fecal cortisol metabolite levels (FCMs) in a group of samango monkeys (Cercopithecus albogularis) in the Soutpansberg Mountains, South Africa. FCMs can often broadly track environmental challenges and perturbations. Initially, we employed an exploratory analysis comparing candidate models representing biological hypotheses and found that those incorporating information on human presence had less weight than models for food availability, thermoregulation, and water scarcity. When we examined a subset of the data that included information on intergroup competition and predator alarm calls, we found that FCMs were higher on the day following potential predator encounters but not competitive interactions. As observer numbers increased, responses to predators flattened, indicating that the presence of several humans might deter predators and/or affect samangos' perception of danger – yet we could not distinguish between these possibilities. Together, these results suggest that ecological perturbations track with FCMs in this study population and challenge long-held assumptions that human presence has negligible effects on habituated study animals. • Environmental challenges help explain FCM levels in wild sykes/samango monkeys. • Cycles of researcher presence/absence have little effect on this habituated group. • Greater numbers of observers may deter more dangerous predators or reduce monkeys' risk perception. • Human presence did not apparently affect responses to intergroup competition. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
41. Modelling the Pleistocene colonisation of Eastern Mediterranean islandscapes
- Author
-
Christian Reepmeyer, Vasiliki Kassianidou, Zomenia Zomeni, Athos Agapiou, and Theodora Moutsiou
- Subjects
Topography ,Social Sciences ,Marine and Aquatic Sciences ,Fresh Water ,Geographical locations ,Mathematical and Statistical Techniques ,Pleistocene Epoch ,Pleistocene archaeology ,High potential ,Islands ,High probability ,Quaternary Period ,Multidisciplinary ,Fossils ,Statistics ,Hominidae ,Geology ,Europe ,Geography ,Archaeology ,Physical Sciences ,Medicine ,Physical Anthropology ,Research Article ,Freshwater Environments ,Asia ,Pleistocene ,Science ,Research and Analysis Methods ,Humanities ,Rivers ,Human presence ,Archaeological research ,Paleoanthropology ,Animals ,European Union ,Statistical Methods ,Landforms ,History and Archaeology ,Ecology and Environmental Sciences ,Aquatic Environments ,Biology and Life Sciences ,Paleontology ,Geologic Time ,Geomorphology ,Bodies of Water ,Colonisation ,Eastern mediterranean ,Fresh water ,Anthropology ,Cyprus ,Earth Sciences ,Cenozoic Era ,People and places ,Mathematics ,Forecasting - Abstract
Predictive models have become an integral part of archaeological research, particularly in the discovery of new archaeological sites. In this paper, we apply predictive modeling to map high potential Pleistocene archaeological locales on the island of Cyprus in the Eastern Mediterranean. The model delineates landscape characteristics that denote areas with high potential to unearth Pleistocene archaeology while at the same time highlighting localities that should be excluded. The predictive model was employed in surface surveys to systematically access high probability locales on Cyprus. A number of newly identified localities suggests that the true density of mobile hunter-gatherer sites on Cyprus is seriously underestimated in current narratives. By adding new data to this modest corpus of early insular sites, we are able to contribute to debates regarding island colonisation and the role of coastal environments in human dispersals to new territories. Introduction Predicting locales of past human activity Regional setting - Archaeological background Materials and methods - Variables - Data - The model - Field methodology Results - Regional - Local - Field survey results Discussion: Modelling the Pleistocene exploitation of Cyprus Conclusions
- Published
- 2021
42. Prehistoric human presence on Mount Etna (Sicily), in relation to the geological evolution
- Author
-
null Stefano Branca, null Francesco Privitera, null Orazio Palio, and null Maria Turco
- Subjects
Archeology ,Geophysics ,Etna volcano ,Human presence ,Geological evolution ,Eruptions - Abstract
This study analyses the relationship between the pre- and protohistoric sites on the slopes of Etna and the volcanic products, as well as the diverse settlement strategies in the different periods of prehistory. New C14 dating from significant excavations, in addition to those known from other Etnean sites, were performed with the aim of validating the chronology of the sequence of the different phases. A substantial concordance of the archaeological data with the volcanological ones has been found. It has been observed that a consistent human presence on Etna appears from the Middle Neolithic (5500 BC), after the sequence of eruptive events that marked the end of the Ellittico volcano (13550 - 13050 BC) and the formation of the Valle del Bove, and the subsequent debris and alluvial events on the eastern flanks of the volcano (7250 - 3350 BC). Human presence intensifies between the Late-Final Copper Age and the Early Bronze Age (2800 - 1450 BC), due to improvement in subsistence techniques and to the large presence of soils on lava flows suitable for sheep farming. The most recent phases of the Bronze Age are poorly represented, probably because of the concentration of the population in larger agglomerations (Montevergine and S. Paolillo at Catania, the Historical Hill at Paternò). The explosive eruptions taking place in this period seem to have had less impact on the settlement choices and have not affected the development of the sites over time.
- Published
- 2021
43. Dense Indoor Sensor Networks: Towards passively sensing human presence with LoRaWAN.
- Author
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Grübel, Jascha, Thrash, Tyler, Aguilar, Leonel, Gath-Morad, Michal, Hélal, Didier, Sumner, Robert W., Hölscher, Christph, and Schinazi, Victor R.
- Subjects
WIDE area networks ,SENSOR networks ,GATEWAYS (Computer networks) ,INTERNET of things ,DIGITAL twins ,AUGMENTED reality ,MAINTENANCE costs - Abstract
Sensors have become ubiquitous in buildings but are rarely connected to a network, and their potential to analyse the performance, use, and interaction with a building is not yet fully realised. In the coming years, we expect sensors in buildings to become part of the Internet of Things (IoT) and grow in numbers to form a Dense Indoor Sensor Network (DISN) that allows for unprecedented analysis of the performance, use, and interaction with buildings. Multiple technologies vie for leading this transformation. We explore Long Range Wide Area Network (LoRaWAN) as an alternative for creating indoor sensor networks that extends beyond its original long-distance communication purpose. For the present paper, we developed a DISN with 390 sensor nodes and four gateways and empirically evaluated its performance for two years. Our analysis of more than 86 million transmissions revealed that DISN s achieve a much lower distance coverage compared to estimations from previous research indicating that more gateways are required. In addition, the deployment of multiple gateways decreased the loss of transmissions due to environmental and network factors. Given the complexity of our system, we received few colliding concurrent messages, which demonstrates a gap between the projected requirements of LoRaWAN systems and the actual requirements of real-world applications given sufficient gateways. We also contribute to the modelling of transmissions with our comparison of attenuation models derived from multiple methodologies. Across all models, we find that robust coverage in an indoor environment can be maintained by placing a gateway every 30 m and every 5 floors. Finally, we also investigate the application of DISN s for the passive sensing and visualisation of human presence using a Digital Twin (DT) and a Fused Twins (FT) representation in Augmented Reality (AR). A passive sensing approach allows us to gather relevant data on human use of a building while still preserving privacy via the aggregation process. Immersive in situ visualisations in FT allow for new interactions and new forms of participation. We conclude that DISN s are already technologically feasible today and basing them on Low Power Wide Area Network (LPWAN) offers intriguing possibilities to reduce energy consumption, maintenance cost, and bandwidth use while also enabling new forms of human-building interaction. [Display omitted] • Dense Indoor LoRaWAN with 4 gateways and 390 sensors over 8 floors and 64 m. • More than 86 million transmissions and 139 million data points collected over two years. • Signal quality analysis requires mixed models instead of linear models, on par with modern neural networks. • A gateway every 30 m and 5 floors guarantees signal quality (30 × 5 rule). • Our Dense Indoor Sensor Network captures indicators of human presence in space. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
44. Fade Depth Prediction Using Human Presence for Real Life WSN Deployment.
- Author
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HORVAT, Goran, RIMAC-DRLJE, Snježana, and ŽAGAR, Drago
- Subjects
WIRELESS sensor networks ,RADIO transmitter fading ,PARAMETER estimation ,PREDICTION models ,ENERGY consumption ,EMPIRICAL research - Abstract
Current problem in real life WSN deployment is determining fade depth in indoor propagation scenario for link power budget analysis using fade margin parameter. Due to the fact that human presence impacts the performance of wireless networks, this paper proposes a statistical approach for shadow fading prediction using various real life parameters. Considered parameters within this paper include statistically mapped human presence and the number of people through time compared to the received signal strength. This paper proposes an empirical model fade depth prediction model derived from a comprehensive set of measured data in indoor propagation scenario. It is shown that the measured fade depth has high correlations with the number of people in non-line-of-sight condition, giving a solid foundation for the fade depth prediction model. In line-of-sight conditions this correlations is significantly lower. By using the proposed model in real life deployment scenarios of WSNs, the data loss and power consumption can be reduced by the means of intelligently planning and designing Wireless Sensor Network. [ABSTRACT FROM AUTHOR]
- Published
- 2013
45. Is passive observation of habituated animals truly passive?
- Author
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McDougall, Petra
- Subjects
- *
HABITUATION (Neuropsychology) , *CERCOPITHECUS aethiops , *LABORATORY monkeys , *ANALYSIS of variance - Abstract
The term 'habituated' is sometimes used to imply that animals no longer respond to the presence of a human observer. There is an accumulating body of evidence, however, suggesting that habituated animals that no longer perceive humans as a direct threat nevertheless continue to respond to their presence in other ways. Data were collected from a troop of free-ranging vervet monkeys in the Klein Karoo of South Africa for months 5-12 of their habituation period to determine how self-directed behaviour (SDB) was affected by human presence across time. SDB decreased across the 8 month period, indicating that habituation was ongoing. The human observer's location in relation to the focal animal had a significant effect on SDB. Furthermore, when the habituation period was divided into an early and a late phase this pattern did not arise until the later habituation period (9-12 months). This evidence suggests that animals continue to respond to human presence as they become habituated, although the observed responses change. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
46. Uncommon Measure: 'L’Iliade ou le poème de la force'
- Author
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Cha, Yoon Sook, author
- Published
- 2017
- Full Text
- View/download PDF
47. Recovery from handling stress in Gadus morhua.
- Author
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Artigas, M. L., Skjæraasen, J. E., Utne-Palm, A. C., and Nilsen, T.
- Subjects
- *
PACIFIC cod , *ATLANTIC cod , *CODFISH , *HEMOGLOBINS , *GENOTYPE-environment interaction , *BIOLOGY - Abstract
The time needed for juvenile cod Gadus morhua to recover from handling stress, and also whether observer presence or haemoglobin genotype influenced recovery time, were investigated. Time to recovery after handling was found to be 1·5 h based on opercular beat frequencies and behaviour. No effects of haemoglobin genotype or observer presence were found. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
48. The effects of disturbance on habitat use by black-tailed godwits Limosa limosa.
- Author
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Gill, Jennifer A., Norris, Ken, and Sutherland, William J.
- Subjects
- *
ECOLOGICAL disturbances , *HABITATS , *BLACK-tailed godwit , *REGRESSION analysis - Abstract
Summary 1.Human disturbance of wildlife is widely considered to be a serious conservation problem. However, despite many qualitative studies, little attempt has been made to assess whether human presence limits the number of animals that sites can support. This can be quantified by incorporating measures both of human presence and of resource distribution into analyses of population distribution. The effects of disturbance can then be measured from any reduction in resource use at disturbed sites, which in turn indicates any reduction in the number of animals supported. 2.Shorebirds are often considered highly susceptible to disturbance because of their very obvious flight responses to humans and because they use areas that are generally subject to high levels of human recreational use. 3.This study addressed the effect of human presence on the distribution of black-tailed godwits Limosa limosa islandica on coastal areas in eastern England. We identified the prey types selected by godwits and related their depletion to different levels and types of human disturbance at a range of spatial scales. 4. Three methods of analysis are described: simple regressions of the effect of human activity on the number of godwits supported; multiple regression analyses of the effect of human presence and prey density on godwit numbers; and analyses of the effect of human presence on prey density at the end of the season. The latter method assumes that godwits are responsible for the majority of resource depletion. None of the analyses showed any effect of human presence on the number of godwits supported by the food supply at any of the spatial scales examined. 5.Many species may appear to avoid human presence but this may not reduce the number of animals supported in an area. Assessing the influence of disturbance on the relationship between animal distribution and resource distribution provides a means of assessing whether numbers are constrained by disturbance. [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
49. Gray wolves live the fabled life on the Kars-Ardahan high plateau in northeastern Turkey
- Author
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Kusak, Josip, Chynoweth, Mark, Çoban, Emrah, Çoban, Ayşegül, and Çekercioglu, Çagan H.
- Subjects
Canis lupus ,wolf ,Turkey ,coexistence ,human presence - Abstract
Rooted deep in the past is the belief that wolves (Canis lupus) are hungry during winter and satiated during summer . Most wolf biologists who study wolves in mainly natural, or intact, ecosystems, would say this belief is incorrect . However, on the Kars-Ardahan high (2000+ m) plateau, wolves still live a life described in fables . During summer, human activity dominates the landscape mainly through livestock grazing . During harsh winters, humans are rarely present in forests or pastures . Since natural prey species are largely absent in the area, wolves rely on anthropogenic food resources throughout the year . To understand how wolves can persist in this heavily altered landscape, we deployed GPS collars on 16 gray wolves from 2011 – 2018 . Mean annual home ranges calculated with the kernel density method for wolves were highly variable (1, 158 .1 ± 592 .8 km2) on average, with one individual ranging across only 43 km2! Yearly diel patterns of resource selection show that wolves select for forested areas during the day and open agricultural areas and areas closer to villages at night . Den locations found during one breeding season, suggest that wolf packs use an average of 209 .8 km2 during breeding period, with dens often located on the forest edge . Accordingly, scat analysis revealed that livestock constituted most of the biomass intake for wolves . Human activity is a major threat to wolves, with 31 .3% of collared wolves dying from human-related causes . Our results and ongoing research will contribute to an increasing interest in adaptations of wolves to local conditions and help to guide local level management decisions .
- Published
- 2018
50. DSDHA's Grounded Research Agenda : Collective impressions
- Author
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Marcaccio, R. (Roberta)
- Subjects
Technology ,Design ,Personal landscapes ,Human presence ,Arquitectura [Materias Investigacion] ,Overlay ,Grounded research - Abstract
When architects give lectures about their work they tend to show a series of photographs of their completed buildings: striking images (often devoid of human presence) taken by third-party professional photographers, which suggest a totally unproblematic relationship between design practice, physical artefacts and their photographic representations. But this is clearly not the case. Arguably indeed architects do not make buildings; they rather craft the instructions and oversee the processes that eventually lead to their completion; processes over which they have no monopoly –as they often take place even without the architects’ mediation and always involve many other ‘actors’. So why do architects insist on showing photographs of buildings? This paper will first unpack the complex nature of the relationship between architecture, buildings and photography, to then introduce the way in which DSDHA, as research-oriented architects, experiment with the photographic medium; using it to portray the ‘differential’ in value that we bring to our projects, and treating it as a design tool that contributes to, and speaks of, our approach –rather than simply fixing on glossy images the final outcomes of our endeavours. The focus will be on DSDHA’s research techniques that use photography as their starting point to investigate latent concerns, aspirations and trends of the many individuals which inhabit our sites –all aspects that often remain hidden to the generic gaze of statistics and evade the canonical artifact-focused photographic representations of architecture. The images we manufacture by means of these techniques are our starting point to map what we call ‘personal landscapes’, and understand how individual narratives relate to the urban morphology as well as to the history of a place. It is from this vantage point that we then proceed to speculate on possible future scenarios.
- Published
- 2016
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