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Mutualistic interactions between species are widespread and important for community structure and ecosystem function. In a changing environment, the proximate mechanisms that maintain mutualisms affect their stability and susceptibility to perturbation. In ant-plant mutualisms, ants defend their host plants against herbivores or competing plants in exchange for housing or food. While the phenomenon of species exchanging services for resources is well documented, how such arrangements are maintained is not. There are at least four hypothesized mechanisms through which plants use sugar to induce ant defense against herbivores. Three such hypotheses (“deficit”, “fuel for foraging”, “predictable rewards”) predict that the appearance of a new sugar source near the host plant would increase the rate of ant attacks against herbivores, but the fourth hypothesis (“attract and distract”) predicts the opposite. To examine how the mutualism between Triplaris americana and Pseudomyrmex dendroicus would be affected, we simulated the appearance of a novel sugar source at a random half of 34 T. americana trees with P. dendroicus colonies. Compared to control colonies, those with access to the sugar source were less likely to attack herbivorous insects (Nasutitermes sp. termites). Thus, our findings support the “attract and distract” hypothesis. We infer that this ant-plant mutualism could be destabilized by the appearance of an alternative sugar source, such as a nectar-producing plant or honeydew-excreting insect. More broadly, we conclude that the mechanisms responsible for maintaining mutualistic relationships are relevant for understanding how ecological communities are affected by environmental change. Abstract in Spanish is available with online material.

Although the tobacco plant has been employed as a medicinal and sacred herb by Indigenous cultures across the Americas, its usage drastically changed after the 15th-century colonial arrival; its large-scale commodification and global marketing once brought to Europe lead to hedonic and addictive uses harmful to health. As a consequence, tobacco smoking is now one of the largest public health problems worldwide. However, in the Peruvian Amazon, a region of origin of tobacco species, Indigenous healers still know how to use the plant for therapeutic purposes. Due to a general disregard of Indigenous knowledge and stigma, these uses have however not so far been clinically investigated. We hence conducted for the first time a clinical field study assessing a sample of patients treated by a traditional healer specialized in tobacco in the Peruvian Amazon (observational design, pilot study, N = 27). The study was conducted within a transdisciplinary and multi-epistemic medical frame, in close partnership with an Amazonian healer. We used validated self-report scales to quantitatively assess mental health variables before and after the weeklong treatment, and mixed-methods to report experienced effects. Paired-samples t-tests comparing pre- and post-treatment scores revealed significant reductions in anxiety, depression, perceived stress, and general symptom indicators. Experienced effects included initial physical discomfort, followed by psychologically or existentially/spiritually significant insights. Our findings point to a sophisticated therapeutic approach based on Indigenous knowledge of tobacco applications, which should be further investigated. The study also contributes to the burgeoning scientific field on therapeutic uses of contentious psychoactive plants. [ABSTRACT FROM AUTHOR]

Copyright of Biotropica is the property of Wiley-Blackwell 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.)

Background: Peru is a low-endemic transmission area for malaria, where the majority (84%) of incident malaria cases are localized to the department of Loreto, which is composed of several geographically isolated rural communities. Recent intervention efforts targeting at-risk Indigenous populations that live in riverine communities in Loreto place emphasis on preventive behaviours to decrease transmission. However, malaria related behaviour change is often dependent upon local knowledge, beliefs, and practices, especially in areas where malaria is viewed an embedded and unavoidable aspect of life. Methods: This exploratory case study used semi-structured interviews conducted in Spanish between February and March of 2019 to examine the knowledge, attitudes, and practices related to malaria prevention among the Indigenous Maijuna people of Sucusari, Loreto, Peru. Participants who consented were also administered a rapid diagnostic test (RDT) upon the time of interview. Results: A total of 33 community members were interviewed, and 31 were tested via malaria rapid diagnostic tests, with RDT filter paper subsequently tested using PCR. All test results were negative for malaria. Themes that emerged included: varying knowledge of methods to prevent malaria, reports of observed changes in malaria incidence over time, confusion surrounding malaria transmission, treatment-seeking as a common behaviour, the belief that medications are effective, and the acceptance of bed nets which were viewed as a lifestyle norm. Conclusion: These shared narratives should be used as a foundation for further studies and health interventions among communities in the Peruvian Amazon with limited access to health services where culturally resonant, community-based health programming is essential to improving health. Takeaways regarding confusion surrounding malaria transmission should also be considered. [ABSTRACT FROM AUTHOR]

Abstract Background Peru is a low-endemic transmission area for malaria, where the majority (84%) of incident malaria cases are localized to the department of Loreto, which is composed of several geographically isolated rural communities. Recent intervention efforts targeting at-risk Indigenous populations that live in riverine communities in Loreto place emphasis on preventive behaviours to decrease transmission. However, malaria related behaviour change is often dependent upon local knowledge, beliefs, and practices, especially in areas where malaria is viewed an embedded and unavoidable aspect of life. Methods This exploratory case study used semi-structured interviews conducted in Spanish between February and March of 2019 to examine the knowledge, attitudes, and practices related to malaria prevention among the Indigenous Maijuna people of Sucusari, Loreto, Peru. Participants who consented were also administered a rapid diagnostic test (RDT) upon the time of interview. Results A total of 33 community members were interviewed, and 31 were tested via malaria rapid diagnostic tests, with RDT filter paper subsequently tested using PCR. All test results were negative for malaria. Themes that emerged included: varying knowledge of methods to prevent malaria, reports of observed changes in malaria incidence over time, confusion surrounding malaria transmission, treatment-seeking as a common behaviour, the belief that medications are effective, and the acceptance of bed nets which were viewed as a lifestyle norm. Conclusion These shared narratives should be used as a foundation for further studies and health interventions among communities in the Peruvian Amazon with limited access to health services where culturally resonant, community-based health programming is essential to improving health. Takeaways regarding confusion surrounding malaria transmission should also be considered.

This paper develops a psychogeographical approach to our apocalyptic urban present, based on a journey down a highway on the outskirts of the city of Iquitos in the Peruvian Amazon. The intensity of psychogeographical method brings out elements of the senselessness and violence of planetary urbanization imperceptible at more abstract levels of analysis, while the subjective impact of this spatial unravelling demands a surrealist psychogeography less attuned to the oneiric and marvellous than the chaotic and absurd. These conceptual reflections are interspersed with depictions of my walk along the highway, as fragments of a psychogeography of planetary urban breakdown. Instead of seeking to explain the political ecology of the road, I aim to contribute to an aesthetic of accelerating collapse that can undermine the normalizing ideological function of our sense‐making mechanisms. [ABSTRACT FROM AUTHOR]

This paper examines the origin and evolution of the Scholarship for Amazonian Native Communities, Beca 18 (CNA) in Peru from 2014 and 2021, focusing on the perspective of both the national indigenous federation, Aidesep and the National Program of Scholarships and Educational Credit (Pronabec). The research methodology combines the analysis of institutional documents and in-depth interviews with members of both institutions. We highlight Aidesep's initiative to establish a dialogue with Pronabec in 2013, the collaborative efforts between Aidesep and Pronabec during the early years of the scholarship, and the lack of publicly available statistics, particularly regarding the retention and graduation of indigenous university students. Both institutions identify the "loss of the scholarship" as amajor limitation, though each has different views on providing support to students to help them complete their studies. The Amazonian notion of 'getting usedd to' (acostumbrarse) emerges as a key element of the indigenous approach to supporting indigenous students. [ABSTRACT FROM AUTHOR]

Artisanal and Small-Scale Gold Mining (ASGM) represents a significant source of anthropogenic mercury emissions to the environment, with potentially severe implications for avian biodiversity. In the Madre de Dios department of the southern Peruvian Amazon, ASGM activities have created landscapes marred by deforestation and post-mining water bodies (mining ponds) with notable methylation potential. While data on Hg contamination in terrestrial wildlife remains limited, this study measures Hg exposure in several terrestrial bird species as bioindicators. Total Hg (THg) levels in feathers from birds near water bodies, including mining ponds associated with ASGM areas and oxbow lakes, were analyzed. Our results showed significantly higher Hg concentrations in birds from ASGM sites with mean ± SD of 3.14 ± 7.97 µg/g (range: 0.27 to 72.75 µg/g, n = 312) compared to control sites with a mean of 0.47 ± 0.42 µg/g (range: 0.04 to 1.89 µg/g, n = 52). Factors such as trophic guilds, ASGM presence, and water body area significantly influenced feather Hg concentrations. Notably, piscivorous birds exhibited the highest Hg concentration (31.03 ± 25.25 µg/g, n = 12) exceeding known concentrations that affect reproductive success, where one measurement of Chloroceryle americana (Green kingfisher; 72.7 µg/g) is among the highest ever reported in South America. This research quantifies Hg exposure in avian communities in Amazonian regions affected by ASGM, highlighting potential risks to regional bird populations. [ABSTRACT FROM AUTHOR]

IntroductionSecondary forests and coffee cultivation systems with shade trees might have great potential for carbon sequestration as a means of climate change adaptation and mitigation. This study aimed to measure carbon stocks in coffee plantations under different managements and secondary forest systems in the Peruvian Amazon rainforest (San Martín Region).MethodsThe carbon stock in secondary forest trees was estimated using allometric equations, while carbon stocks in soil, herbaceous biomass, and leaf litter were determined through sampling and laboratory analysis.ResultsThe biomass carbon stock in secondary forests was 132.2 t/ha, while in coffee plantations with Inga sp. shade trees was 118.2 t/ha. Carbon stocks were 76.5 t/ha in coffee with polyculture farming, while the lowest amount of carbon was found in coffee without shade trees (31.1 t/ha). The carbon sequestered by coffee plants in all agroforestry systems examined had an average of 2.65 t/ha, corresponding to 4.63 % of the total carbon sequestered, being the highest stored in the coffee system with Inga sp. shade trees. A higher content of glomalin-related soil proteins (GRSP) was found in coffee without shade trees, with 18.5 mg/g.DiscussionThese results point to Inga sp. as a compatible model of shade system for coffee farms. However, broader-scale time-average measurements and carbon dioxide emissions should be assessed in these study systems to have a full understanding of their climate impacts.

Interactions between predator and prey are fundamental drivers of ecological and evolutionary dynamics. Behavioral responses are one of the most common strategies that prey species use to deter predation, especially through highly stereotyped defensive displays. However, these displays are also predicted to show strong context‐dependence, in which individuals can dynamically employ different display elements as a function of their own characteristics (e.g., age and sex) or those of the predator (e.g., type of predator). In this study, we experimentally tested for the effects of four simulated predator cues on defensive displays in two species of South American calico snakes (genus Oxyrhopus). We found that juvenile snakes were both more likely to respond and to respond more strongly than adults and that displays were most common in response to tactile stimuli than to other treatments. However, we also found broad similarity across both simulated predator treatments and species in the components used in each snake's defensive display, suggesting a high degree of stereotyping. This research suggests an important role for both ontogeny and intensity of predation risk in structuring variation in defensive behavior in Neotropical snakes and emphasizes the foundational importance of context dependence in conceptual frameworks for understanding predator–prey interactions. [ABSTRACT FROM AUTHOR]

Simple Summary: Numerous instances of SARS-CoV-2 transmission from humans to both domestic and wild animals have been reported globally. However, in Peru, natural infections in wild animals have not been documented, despite the high number of COVID-19 cases and deaths in humans, particularly in the Amazonian regions where interactions between humans and wildlife are frequent. In this study, we conducted SARS-CoV-2 surveillance using fecal samples from 76 captive and semi-captive monkeys in the Loreto, Ucayali, and Madre de Dios regions from August 2022 to February 2023. We identified a genetic segment of SARS-CoV-2 through metagenomic sequencing in a pooled fecal sample from captive white-fronted capuchins (Cebus unicolor) at a rescue center in Ucayali. Phylogenetic analysis further confirmed that the obtained sequence matched the SARS-CoV-2 genome. This study represents the initial report of molecular detection of SARS-CoV-2 in monkeys in the Peruvian Amazon, underscoring the adverse impact of human–wildlife interactions and emphasizing the importance of continuous surveillance for the early detection and anticipation of potential future emergencies involving new variants of SARS-CoV-2 in wildlife. Human-to-animal transmission events of SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) have been reported in both domestic and wild species worldwide. Despite the high rates of contagion and mortality during the COVID-19 (Coronavirus Diseases 2019) pandemic in Peru, no instances of natural virus infection have been documented in wild animals, particularly in the Amazonian regions where human–wildlife interactions are prevalent. In this study, we conducted a surveillance investigation using viral RNA sequencing of fecal samples collected from 76 captive and semi-captive non-human primates (NHPs) in the Loreto, Ucayali, and Madre de Dios regions between August 2022 and February 2023. We detected a segment of the RNA-dependent RNA polymerase (RdRp) gene of SARS-CoV-2 by metagenomic sequencing in a pooled fecal sample from captive white-fronted capuchins (Cebus unicolor) at a rescue center in Bello Horizonte, Ucayali. Phylogenetic analysis further confirmed that the retrieved partial sequence of the RdRp gene matched the SARS-CoV-2 genome. This study represents the first documented instance of molecular SARS-CoV-2 detection in NHPs in the Peruvian Amazon, underscoring the adverse impact of anthropic activities on the human–NHP interface and emphasizing the importance of ongoing surveillance for early detection and prediction of future emergence of new SARS-CoV-2 variants in animals. [ABSTRACT FROM AUTHOR]

Introduction: Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae are on the WHO priority pathogens list because they are associated with high mortality, health-care burden, and antimicrobial resistance (AMR), a serious problem that threatens global public health and should be addressed through the One Health approach. Non-human primates (NHP) have a high risk of acquiring these antibiotic-resistant bacteria due to their close phylogenetic relationship with humans and increased anthropogenic activities in their natural environments. This study aimed to detect and analyze the genomes of ESBL-producing Escherichia coli (ESBL-producing E. coli) in NHP from the Peruvian Amazon. Materials and methods: We collected a total of 119 fecal samples from semicaptive Saguinus labiatus, Saguinus mystax, and Saimiri boliviensis, and captive Ateles chamek, Cebus unicolor, Lagothrix lagothricha, and Sapajus apella in the Loreto and Ucayali regions, respectively. Subsequently, we isolated and identified E. coli strains by microbiological methods, detected ESBL-producing E. coli through antimicrobial susceptibility tests following CLSI guidelines, and analyzed their genomes using previously described genomic methods. Results: We detected that 7.07% (7/99) of E. coli strains: 5.45% (3/55) from Loreto and 9.09% (4/44) from Ucayali, expressed ESBL phenotype. Genomic analysis revealed the presence of high-risk pandemic clones, such as ST10 and ST117, carrying a broad resistome to relevant antibiotics, including three blaCTX-M variants: blaCTX-M-15, blaCTX-M-55, and blaCTX-M-65. Phylogenomic analysis confirmed the clonal relatedness of high-risk lineages circulating at the human-NHP interface. Additionally, two ESBL-producing E. coli strains were identified as EPEC (eae) and ExPEC according to their virulence profiles, and one more presented a hypermucoviscous phenotype. Discussion: We report the detection and genomic analysis of seven ESBLproducing E. coli strains carrying broad resistome and virulence factors in NHP from two regions of the Peruvian Amazon. Some of these strains are closely related to high-risk pandemic lineages previously reported in humans and domestic animals, highlighting the negative impact of anthropogenic activities on Amazonian wildlife. To our knowledge, this is the first documentation of ESBL-producing E. coli in NHP from the Amazon, underscoring the importance of adopting the One Health approach to AMR surveillance and minimizing the potential transmission risk of antibiotic-resistant bacteria at the human-NHP interface. [ABSTRACT FROM AUTHOR]

Of all forest species that transmit disease to humans, mosquitoes are considered the most responsive to ecosystem changes caused by deforestation. This study examines the relationship between deforestation and malaria cases in the Peruvian Amazon region while addressing spatial interdependence among districts by using a Spatial Durbin Model. Our primary results suggest that the total effect of a decline of 1,000 hectares of forest cover is associated with an additional 69 malaria cases. The spatial model allows us to further determine that both direct and spillover effects are positive. Following the Avoided Cost approach in Barbier et al., we estimate that the cost of the additional malaria cases could approach USD 24.8 million, an amount similar to the recent health program funded by the Peruvian government to combat malaria. Our findings suggest that policy makers should consider the trade-offs between the economic benefits of deforestation and the cost associated with increased malaria incidence. [ABSTRACT FROM AUTHOR]

The invention of Shipibo visionary paintings in the Western Amazon by the collective of artists and shamans, Barin Bababo, seems to challenge the idealist thesis that the hybridity of contemporary indigenous art and its commercialization in the Western art market would constitute a cultural degradation of "traditional" indigenous art. The works, at the crossroads of shamanic practices based on an animistic worldview and the ability of their creators to weave social networks beyond their ethnic group, appear to represent, on the contrary, a means of expressing a form of resilience in response to the transformations that Shipibo society is currently experiencing in the context of globalization. The "cultural in-between" position of shaman painters, from which the success of their artistic productions with a Western audience of "shaman tourists" derives, challenges the classical dichotomy that opposes "modernity" and "tradition" making of the components of the past a form of cultural renewal. [ABSTRACT FROM AUTHOR]

Abstract In the Anthropocene, primate conservation can only take place when considering human culture, perspectives, and needs. Such approaches are increasingly important under the growing impact of anthropogenic activities and increasing number of threatened primates. The Amazon rainforest, rich in cultural and biological diversity, where indigenous people play a crucial role in primate conservation, provides ample opportunity to study human–primate interactions and the sociocultural context in which they occur. Human activities threaten the Amazon’s fragile ecosystems and its primates, which play a key role in its maintenance and regeneration. This study focuses on one of the largest indigenous groups in the Peruvian Amazon: the Shipibo. Interviews and participant observation were used to investigate local perceptions of animal presence and depletion, food preferences, and how primates are incorporated into daily life and culture. Since time immemorial and still today, primates remain important in Shipibo culture, mythology, and subsistence. Local Shipibo participants consistently identified the presence of 13 species of primate. Primates were among the preferred species for consumption, pet keeping, and held a fundamental role in mythology, traditional knowledge, and storytelling. Large-bodied primates were often mentioned as being locally extinct, with reports and observations suggesting increasing consumption of smaller-bodied primates. Commonly perceived reasons for primate depletion include noise disturbance, hunting, and population growth, often in parallel. This study sheds light on the cultural context of an area rich in biodiversity, where primates, essential for ecological balance and integral to Shipibo lives and identity, are being depleted. We highlight the need for an inclusive ethnoprimatological approach to conserving primates and preserving indigenous heritage while improving local livelihoods.

IntroductionExtended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae are on the WHO priority pathogens list because they are associated with high mortality, health-care burden, and antimicrobial resistance (AMR), a serious problem that threatens global public health and should be addressed through the One Health approach. Non-human primates (NHP) have a high risk of acquiring these antibiotic-resistant bacteria due to their close phylogenetic relationship with humans and increased anthropogenic activities in their natural environments. This study aimed to detect and analyze the genomes of ESBL-producing Escherichia coli (ESBL-producing E. coli) in NHP from the Peruvian Amazon.Materials and methodsWe collected a total of 119 fecal samples from semi-captive Saguinus labiatus, Saguinus mystax, and Saimiri boliviensis, and captive Ateles chamek, Cebus unicolor, Lagothrix lagothricha, and Sapajus apella in the Loreto and Ucayali regions, respectively. Subsequently, we isolated and identified E. coli strains by microbiological methods, detected ESBL-producing E. coli through antimicrobial susceptibility tests following CLSI guidelines, and analyzed their genomes using previously described genomic methods.ResultsWe detected that 7.07% (7/99) of E. coli strains: 5.45% (3/55) from Loreto and 9.09% (4/44) from Ucayali, expressed ESBL phenotype. Genomic analysis revealed the presence of high-risk pandemic clones, such as ST10 and ST117, carrying a broad resistome to relevant antibiotics, including three blaCTX-M variants: blaCTX-M-15, blaCTX-M-55, and blaCTX-M-65. Phylogenomic analysis confirmed the clonal relatedness of high-risk lineages circulating at the human-NHP interface. Additionally, two ESBL-producing E. coli strains were identified as EPEC (eae) and ExPEC according to their virulence profiles, and one more presented a hypermucoviscous phenotype.DiscussionWe report the detection and genomic analysis of seven ESBL-producing E. coli strains carrying broad resistome and virulence factors in NHP from two regions of the Peruvian Amazon. Some of these strains are closely related to high-risk pandemic lineages previously reported in humans and domestic animals, highlighting the negative impact of anthropogenic activities on Amazonian wildlife. To our knowledge, this is the first documentation of ESBL-producing E. coli in NHP from the Amazon, underscoring the importance of adopting the One Health approach to AMR surveillance and minimizing the potential transmission risk of antibiotic-resistant bacteria at the human-NHP interface.

In the Anthropocene, primate conservation can only take place when considering human culture, perspectives, and needs. Such approaches are increasingly important under the growing impact of anthropogenic activities and increasing number of threatened primates. The Amazon rainforest, rich in cultural and biological diversity, where indigenous people play a crucial role in primate conservation, provides ample opportunity to study human–primate interactions and the sociocultural context in which they occur. Human activities threaten the Amazon's fragile ecosystems and its primates, which play a key role in its maintenance and regeneration. This study focuses on one of the largest indigenous groups in the Peruvian Amazon: the Shipibo. Interviews and participant observation were used to investigate local perceptions of animal presence and depletion, food preferences, and how primates are incorporated into daily life and culture. Since time immemorial and still today, primates remain important in Shipibo culture, mythology, and subsistence. Local Shipibo participants consistently identified the presence of 13 species of primate. Primates were among the preferred species for consumption, pet keeping, and held a fundamental role in mythology, traditional knowledge, and storytelling. Large-bodied primates were often mentioned as being locally extinct, with reports and observations suggesting increasing consumption of smaller-bodied primates. Commonly perceived reasons for primate depletion include noise disturbance, hunting, and population growth, often in parallel. This study sheds light on the cultural context of an area rich in biodiversity, where primates, essential for ecological balance and integral to Shipibo lives and identity, are being depleted. We highlight the need for an inclusive ethnoprimatological approach to conserving primates and preserving indigenous heritage while improving local livelihoods. [ABSTRACT FROM AUTHOR]

Copyright of Apuntes Universitarios: Revista de Investigación is the property of Universidad Peruana Union Filiar Tarapoto 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.)

This article presents some results of a long-term research project on the Iskonawa, a Peruvian Amazon community that until recently many specialists considered gone. The few living speakers hold a world of knowledge and oral tradition that a team of Peruvian researchers has been collecting since 2010. Some Iskonawa myths of origin and survival tell us about their relationship with nature, their use of animals and plants, and a bleak future of deforestation, contamination, drug trafficking, and other crimes. In some of these narratives, it is possible to find alternative views of nature and the world in general that challenge the Western and neoliberal approach to the Amazonian basin. [ABSTRACT FROM AUTHOR]

Two decades ago, the Peruvian government introduced the National BioTrade Promotion Program to support the production and export of agricultural commodities that comply with UNCTAD’s principles and criteria for BioTrade. This article takes stock of some of the program’s achievements over the past 20 years and discusses the challenges that remain to scaling up biodiversity-friendly approaches to agriculture in Peru. We find that the rapid increase in export during the first ten years of the program, which drove the initial optimism about BioTrade’s potential for economic development and biodiversity conservation, has given way to a more cautious assessment as the second decade has seen the expansion of markets for Peruvian biodiversity-based products slow down considerably.

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This paper analyzes some poems by Leonardo Tello Imaina: poet, communicator, journalist, and director of Radio Ucamara (Nauta, Loreto Region, Peru). Tello identifies himself as a member of the Kukama people, and my analysis here departs from a fundamental premise: the importance of the river for the Kukama people. It then bifurcates into two connected axes: on the one hand, the relationships between humans and non-humans and, on the other--borrowing Mario Blaser's definition--the "ontological conflicts". I emphasize how Tello's poetry contributes to the visibilization of Kukama political ontology and, at the same time, to the inclusion of Amazonian indigenous literature in the national literary scenario. [ABSTRACT FROM AUTHOR]

Copyright of Revista Veterinaria is the property of Universidad Nacional del Nordeste 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.)

During April-June 2014 in a malaria-endemic rural community close to the city of Iquitos in Peru, we detected evidence of Guaroa virus (GROV) infection in 14 febrile persons, of whom 6 also had evidence of Plasmodium vivax malaria. Cases were discovered through a long-term febrile illness surveillance network at local participating health facilities. GROV cases were identified by using a combination of seroconversion and virus isolation, and malaria was diagnosed by thick smear and PCR. GROV mono-infections manifested as nonspecific febrile illness and were clinically indistinguishable from GROV and P. vivax co-infections. This cluster of cases highlights the potential for GROV transmission in the rural Peruvian Amazon, particularly in areas where malaria is endemic. Further study of similar areas of the Amazon may provide insights into the extent of GROV transmission in the Amazon basin.

The emergence of “shamanic tourism” in some Shipibo-Konibo villages and urban areas has led to a recrudescence of vernacular witchcraft practices, now integrated into the new sociological context of the commercialization of local vegetalist shamanism. This has brought about sorcery attacks both on rival shamans and on tourists seeking a shamanic and hallucinogenic experience, some of whom in turn become the target of sorcery rumors. These occult practices and interpretations can be seen, on the one hand, as forms of resilience adopted by Shipibo shamans in order to cope with and benefit from the current context of transition to capitalism, which is increasingly present within the communities, and, on the other hand, as manifestations of frustration and anxiety about the recuperation of local shamanism by global culture, symptomatic of the traditionally ambiguous links between gringos and Native Amazonians.

This article explores power relations between farmers and artisanal gold miners based on an analysis of a buffer zone in the Amazonian department of Madre de Dios (Peru), which has been experiencing a gold rush since the mid-2000s. It provides insight into mining territorialisation processes on agricultural lands, actor dynamics and mechanisms of access to and use of land and its resources. Taking a different angle to the analyses already produced on the conflictual nature of their relations, this article endeavours to shed light on a distinct, but no less present phenomenon: the negotiated nature of artisanal and small-scale gold mining (ASGM) and the mutual arrangements made between stakeholders for access to and use of natural resources.

Chrysochlamys montieliae, a new species of the Clusiaceae family, Clusioideae subfamily, Clusieae tribe, from the Cordillera Azul National Park, Department of Loreto, is described and illustrated. Following the IUCN criteria, we propose to categorize it as Data Deficient (DD), since it is only known from the type locality. In addition, their relationships with related species are discussed. [ABSTRACT FROM AUTHOR]

Human-to-animal transmission events of SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) have been reported in both domestic and wild species worldwide. Despite the high rates of contagion and mortality during the COVID-19 (Coronavirus Diseases 2019) pandemic in Peru, no instances of natural virus infection have been documented in wild animals, particularly in the Amazonian regions where human–wildlife interactions are prevalent. In this study, we conducted a surveillance investigation using viral RNA sequencing of fecal samples collected from 76 captive and semi-captive non-human primates (NHPs) in the Loreto, Ucayali, and Madre de Dios regions between August 2022 and February 2023. We detected a segment of the RNA-dependent RNA polymerase (RdRp) gene of SARS-CoV-2 by metagenomic sequencing in a pooled fecal sample from captive white-fronted capuchins (Cebus unicolor) at a rescue center in Bello Horizonte, Ucayali. Phylogenetic analysis further confirmed that the retrieved partial sequence of the RdRp gene matched the SARS-CoV-2 genome. This study represents the first documented instance of molecular SARS-CoV-2 detection in NHPs in the Peruvian Amazon, underscoring the adverse impact of anthropic activities on the human–NHP interface and emphasizing the importance of ongoing surveillance for early detection and prediction of future emergence of new SARS-CoV-2 variants in animals.

El Viento del Ayahuasca (1983) is a film by Nora de Izcue (born 1934), considered the first woman director of Peruvian cinema. Despite her importance and the implications of this film for gender and Amazonian studies, the film has received little attention. Thus, revisiting this film provides refreshing insights to understand the prevailing unconscious patriarchal thinking of a pioneering female director in Peru, as her perspective is closer to the male colonizer's than to the Amazonian woman's. Although there are moments in the film that show female agency through an "oppositional gaze," the narrator's voice and representation of the white, male, urban, and educated character affirms the notions of patriarchy and colonizer superiority. This film introduces a new type of masculine colonizer, the "failed but hopeful ethnographer." His lack of success to help the feminine, mixed-race, Amazonian, and poor character does not mean that the film dismantles historical representations of the Amazon as an idealized space for the foreigner. The failure of the male character, in fact, entitles him to a legitimate authority as the experienced ethnographer who can speak about the Amazon at the cost of the female protagonist disappearance somewhere in the rainforest. [ABSTRACT FROM AUTHOR]

In this paper we aim to identify some relevant methodological traits of life histories - conceived both as a research framework and as a textual outcome - with members of indigenous peoples. In order to achieve this goal, we discuss the concepts of 'narrator' and 'narrataire', the researchers' stance, and the transformative potential of life histories, as well as some ethical and political issues that these processes and textual productions raise. We depart from the elaboration of the life histories of a multilingual teacher from the Peruvian Amazon and of a historical leader of the Asháninka society: a bilingual book in Spanish and Bora, the first language of the teacher (Díaz Peña 2017), and a book in Spanish and Asháninka, the first language of the historical leader (Casanto Shingari 2022). We state that a core methodological feature of working out life histories with indigenous peoples is the need for clearly setting out throughout the process the various asymmetries and differences between the narrator and the narrataires. A remarkable asymmetry in the experiences we assess pertains to the linguistic market (Bourdieu 2008; 2002), and it emerges from the different social values assigned to the various codes downplayed in the process of producing the life histories and in their textual outcome. [ABSTRACT FROM AUTHOR]

Species of the genus Dipetalonema are parasitic nematodes of the family Onchocercidae (Nematoda; Filarioidea) which infect the peritoneal cavity of Neotropical primates. Of these, six species have been taxonomically described, two of these have been reported infecting the black-faced spider monkey (Ateles chamek): Dipetalonema gracile and Dipetalonema yatesi. Description of Dipetalonema species have been based on morphological characteristics, and their phylogenetic relationships remain unresolved. A few molecular studies have been carried out in Dipetalonema spp. infecting Neotropical primates. Seven filarioid nematodes (6 females and one male) recovered from one A. chamek in the Peruvian Amazon rainforest were morphologically identified as D. yatesi and molecularly characterized. A multi-locus genetic analysis of nuclear ribosomal region (18S) and mitochondrial (cox1, 12S, and nad5) gene sequences supported D. yatesi as a distinct lineage and yielded a highly resolved phylogenetic lineage tree for this filarioid genus of Neotropical primates. Our results highlighted that Dipetalonema species are divided in two well-supported clades, one containing D. yatesi and D. caudispina, and the second containing D. robini, D. gracile, and D. graciliformis. Due to sequence ambiguities from GenBank entries, relationships among isolates of D. gracile and D. graciliformis cannot be fully resolved, which requires further investigation. However, this suggests that these could represent a species complex. Our study confirms that D. yatesi is a valid species and constitutes the first molecular phylogenetic analysis of this parasite in black-faced spider monkeys.

Le Programme national d’alimentation scolaire du Pérou, Qaliwarma, repose sur un principe de coresponsabilité et de cogestion, et prône une adaptation aux habitudes alimentaires locales. En pratique, en contexte autochtone amazonien, il distribue des aliments industriels issus des régions andines et côtières, produits par de grandes entreprises nationales et internationales qui monopolisent le marché alimentaire. Pourtant, les bénéficiaires de ces peuples sont des collecteurs et producteurs d’aliments. À partir d’une enquête ethnographique menée entre 2013 et 2017, cet article explore les limites du modèle péruvien de cogestion ainsi que les aménagements et les résistances locales qu’il suscite chez deux peuples autochtones amazoniens, maijuna et napuruna. Il montre que les choix politiques relatifs à la conception et aux modalités d’application du programme prolongent de manière singulière des mécanismes de domination et de résistance existants. Le programme s’avère très centralisé et, prenant appui sur des directives internationales, favorise l’agro-industrie au détriment des petits producteurs et des peuples autochtones. Bien que des comités « participatifs » aient été créés, la cogestion se résume à une délégation technique et est peu outillée pour aménager des espaces de dialogue et s’adapter aux préférences alimentaires locales. Toutefois, la « collaboration » informelle des parents, en particulier des mères qui préparent les repas, joue un rôle fondamental en ce sens. L’article met ainsi en évidence le paradoxe suivant : leur action politique ne se situe pas dans l’espace de cogestion mis en avant par le gouvernement mais plutôt dans leur participation directe à la préparation des repas.

Abstract The Amazon is home to important wildlife and a biodiversity hotspot of global importance. The ancestral knowledge kept by Indigenous communities about its fauna and flora contributes further to its irreplaceable value. The Peruvian Amazon was heavily struck by the COVID-19 epidemic with a cumulative incidence of 725, a mortality rate of 34 per 100,000 inhabitants, and a case fatality rate of 4.6% by the end of July 2020. In this work, we review scientific literature and media to trace the events that happened at the beginning of the COVID-19 epidemic in the Peruvian Amazon. Results are synthesized in three observations: (1) the evolution of the COVID-19 epidemic within the Peruvian Amazon and the response of the Peruvian health care system, (2) Confusing information about Ivermectin use for COVID-19 treatment and prevalent self-medication (3) The response of the traditional Indigenous health care system to the COVID-19 epidemic. These three observations are interdependent. There is an unexploited potential for integrative approaches linking traditional medical practices (TMP) and biomedical approaches and they may benefit from the interactions that occur between them. Synergies can also be explored between the human and animal health care sector, especially in terms of the use and stewardship of medicines. We conclude that there is a benefit of the One Health approach in the region, which can go through the common ambition to improve the integrated health of people, animals and ecosystems, facilitate the enhancement of equity and inclusion while improving access to health services and conserving biodiversity. One Health Impact Statement The Amazon region is home to wildlife flora and fauna and indigenous Amazon communities. The case presented in this work shows that an existing grassroots initiative has been reducing case fatality rates tenfold during the COVID-19 epidemic, while acting in respect towards nature and the environment, and using its resources. This is in stark contrast to the uncontrolled, ineffective self-medication with ivermectin in that same period, which may endanger the biodiversity hotspot through metabolic residues. While the current example seems to illustrate community resilience due to government negligence, it also shows the vastly unexplored potential of integrating biomedical and traditional indigenous knowledge in a solidaric and co-creative framework such as One Health.

The carbon pool of Amazonian peatlands is immense and mediates critical ecological functions. As peatlands are dynamic, similar to other wetland systems, modeling of the relationship between organic matter and dry bulk density allows the estimation of the accumulation and/or decomposition of peats. We tested several models: the generalized linear mixed logarithmic, to test depth, and the non-linear logarithmic and power-law models. There is a negative power-law relationship between organic percentage and dry bulk density using peat samples collected in Amazonian peatlands (n = 80). This model is supported by the coefficient of determination (R2) estimates garnered from model fitting, while Akaike Information Criterion (AIC) values further support parsimonious models. We also ran trials of the ideal mixing model with two parameters: k1 representing organic density and k2 representing mineral. The mixture of organic and inorganic components generally falls in accordance with the theory that decreasing k1 trends with increasing k2, although k2 values for these peat samples are negative. The organic k1 coefficient allows us to identify two sites out of the nine investigated, which can be prioritized for their carbon dynamics. The presence of high-density samples, which were not related to depth, indicates clay intrusion in these peatlands. We hope the modeling can explain processes significant to these globally important carbon-rich ecosystems. [ABSTRACT FROM AUTHOR]

To explore hantavirus infection patterns in Latin America, we conducted molecular and serologic hantavirus investigations among 3,400 febrile patients from Peru during 2020-2021. Reverse transcription PCR indicated that a patient from Loreto, in the Peruvian Amazon, was positive for Rio Mamore hantavirus (serum, 3.8 × 10 3 copies/mL). High genomic sequence identity of 87.0%-94.8% and phylogenetic common ancestry with a rodent-associated Rio Mamore hantavirus from Loreto in 1996 indicated endemicity. In 832 samples from Loreto, hantavirus incidence based on IgM ELISA of pooled Sin Nombre (SNV) and Andes virus (ANDV) nucleoproteins and immunofluorescence assay-based end-point titration using SNV/ANDV/Hantaan/Puumala/Saarema/Dobrava/Seoul hantaviruses was 0.5%. Across 3 ecologically distinct departments in Peru, SNV/ANDV IgG ELISA/IFA-based reactivity was 1.7%, suggesting circulation of antigenically distinct New World hantaviruses. Testing for arboviruses, nonendemic pathogens, and antigen-free ELISA corroborated nonspecific reactivity in 2 IgG and several IgM ELISA-positive serum samples. Hantavirus diagnostics and surveillance should be strengthened in Peru ad across Latin America.

The Awajún of the Alto Marañón, a region in the northeast of the Peruvian Amazon, were the protagonists of an environmental conflict, known as "Baguazo", in which they clashed with various agents of the Peruvian state (June 2009). They are currently involved in the elaboration of an oral memory of this painful experience: stories that end up bringing together recent events with those of their historical past. The analysis of ethnographic material gathered over a period of almost ten years will allow the observation of how this group is living the current process of re-elaboration of the emotions experienced at that time, which symbolic and descriptive content they choose and how they transmit them.

Stingless bees (Hymenoptera: Meliponini) are among the most important pollinators of tropical forests. Peru is considered a hotspot of biodiversity of Meliponini, but many areas of this country (e.g., Peruvian Amazon) remain unexplored. We aimed to produce a first inventory of stingless bee species dwelling in humid and seasonally dry forests of northern Peru by combining traditional (morphologically-based) taxonomy and DNA barcoding. Specimens were collected in 2020 at five sites located in San Martin and Piura regions. We identified 12 genera of Meliponini. Among those, Trigona and Plebeia were the most abundant (45.9% and 12.8% respectively), whereas Nannotrigona and Scaura were the least represented ones (2.3%). We assigned a reliable species identification to about 30% of specimens (Trigona amazonensis, T. muzoensis, T. williana, Partamona testacea, Scaura tenuis, Tetragona goettei, and Tetragonisca angustula). Yet, more than a half of the specimens received a provisional identification (e.g., Geotrigona cf. fulvohirta, T. cf. amalthea, T. cf. fuscipennis, T. cf. hypogea, Melipona cf. cramptoni, Partamona cf. epiphytophila, Ptilotrigona cf. perenae, Scaura cf. latitarsis, Tetragona cf. clavipes, Trigonisca cf. atomaria). We also highlighted an extensive polyphyly that affected a number of currently recognized species (e.g., T. fulviventris, T. guianae, Plebeia franki, P. frontalis, M. eburnea, M. illota), whose members were split into various clades. Finally, 16% of individuals failed to be identified at the species level (Trigona sp. 1, T. sp. 2, Nannotrigona sp., Partamona sp., Scaptotrigona sp. 1, S. sp. 2, Trigonisca sp. 1, and Trigonisca sp. 2). We discuss our findings according to the current faunistic and biogeographic knowledge of Meliponini in Peru and the Neotropical region. We also remark on the importance of conducting a taxonomic revision of stingless bees and improving both their morphology-based identification keys and BOLD repository. Finally, we claim that integrative taxonomy shall be strongly implemented to truly assess the biodiversity of Neotropical stingless bees, allowing conserving these important pollinators and the associated traditional meliponiculture in an effective manner. [ABSTRACT FROM AUTHOR]

Endogenous development seeks to improve the living conditions of rural inhabitants through the combined use of natural resources and progress actions that are in harmony with the ecosystem but at the same time are a permanent financial path. At the same time, it seeks the preservation of biodiversity as a power of origin, as well as a financial progress with sustainable productivity that provides welfare. In this sense, the purpose of the study was to describe the role of the university as a manager of research and innovation for the achievement of endogenous development in the Peruvian Amazon through the perception of university authorities and professors. The research had a qualitative approach, with a grounded theory design, with teachers and authorities of the National University of the Peruvian Amazon as informants. The results of the interviews were analyzed using the IRaMuTeQ program to determine the cooccurrences and relationships of the two categories: Role of the university as a manager of research and innovation and endogenous development of the Peruvian Amazon. A lexicometric study of the documents generated was carried out. Reporting from the perception of the authorities and teachers to the research and innovation that is carried out from the university as a central axis for the achievement of the endogenous development of the region. In addition, they state the need for the active participation of all students together with their teachers for the planning of activities that lead to solve the problems of the region through the generation of scientific knowledge and innovation. In conclusion, the university has a leading role as a manager of research and innovation to achieve the endogenous development of the Peruvian Amazon. [ABSTRACT FROM AUTHOR]

Many venomous animals express toxins that show extraordinary levels of variation both within and among species. In snakes, most studies of venom variation focus on front-fanged species in the families Viperidae and Elapidae, even though rear-fanged snakes in other families vary along the same ecological axes important to venom evolution. Here we characterized venom gland transcriptomes from 19 snakes across two dipsadine rear-fanged genera (Leptodeira and Helicops, Colubridae) and two front-fanged genera (Bothrops, Viperidae; Micrurus, Elapidae). We compared patterns of composition, variation, and diversity in venom transcripts within and among all four genera. Venom gland transcriptomes of rear-fanged Helicops and Leptodeira and front-fanged Micrurus are each dominated by expression of single toxin families (C-type lectins, snake venom metalloproteinase, and phospholipase A2, respectively), unlike highly diverse front-fanged Bothrops venoms. In addition, expression patterns of congeners are much more similar to each other than they are to species from other genera. These results illustrate the repeatability of simple venom profiles in rear-fanged snakes and the potential for relatively constrained venom composition within genera. [ABSTRACT FROM AUTHOR]

Loreto, the largest Amazonian region in Peru, is home to more than 200,000 inhabitants that live in traditional riverside rural communities adapted to an amphibious lifestyle, with houses that rise or float on the river in times of flooding and perch on the dried riverbed in low water times. Nevertheless, these amphibious communities are not exclusive to rural areas. Iquitos, the largest city of Loreto, is surrounded by alluvial plains, where more than 90,000 people live on the water and bring a rich social, cultural, and environmental vibrancy to the regions. However, poor infrastructure conditions and limited resources in this communities affect the ecosystem and the population's health. The objective of this qualitative study was to understand the physical, sociocultural, and environmental conditions in which these amphibious communities live and identify the political, legal, and cultural barriers that prevent their healthy urban development. Data collection was conducted through semi-structured interviews, surveys, and observation of physical and environmental conditions. The results suggest conflicts in the formalization processes of theses informal communities, from administrative and legal aspects to a limited definition of habitable territory. We identified the benefits of the current urban-architectural conditions of these communities, whose housing typologies, adapted to the seasonal change of the rivers, may provide a alternative model to adapt with resilience to the impacts of climate change and sea level rise. We also identified challenges in sanitation, accessibility, public space, and strength of community networks, as well as challenges in the response of the government whose proposals for relocation of the amphibious communities have not fully considered these communities' economic, social, and cultural values. [ABSTRACT FROM AUTHOR]

Objectives. To evaluate the variation of hematological profiles of patients infected with uncomplicated Plasmodium vivax (Pv) and P. falciparum (Pf) malaria before, during and after treatment in a population of the Loreto region. Materials and methods. This study was conducted between 2010 and 2012, in Zungarococha (Iquitos). The 425 participants had three visits (visit 1-day 0-before treatment, visit 2-day 7-during treatment, visit 3-day 28-after treatment), complete blood count, microscopic and molecular diagnosis (PCR). Results. At the first visit, 93 (21.9%) participants were found positive for Pv and 34 (8.0%) for Pf. All positives showed a reduction in hematocrit, white blood cell count (WBC), ablated and segmented neutrophils, eosinophils and platelets (p<0.001) compared to the negative group. A higher percentage of ablated neutrophils was found in Pf and segmented neutrophils in Pv compared to the negative group. Variations in hematological profiles were observed after treatment for both species; ablated neutrophils decreased, platelets increased, eosinophils increased at day 7 and declined at day 28, hematocrit and segmented neutrophils decreased at day 7 and normalized at day 28. Interspecies differences over time showed a bigger daily decrease in ablated neutrophils in Pv-infected when compared to Pf. Conclusions. The hematological profile in uncomplicated malaria-positive patients varies over time during and after treatment. These are indicators of disease progression and help in the therapeutic surveillance of Plasmodium-infected patients. [ABSTRACT FROM AUTHOR]

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We use a decolonial approach to political economy and a social conceptualization of space to examine how Indigenous cultural understandings and knowledge mediate market rationalities in context. Indigenous Awajún notions of tajimat pujut (life in abundance) and their horticulturalist practices are embedded in a relational ontology that situates humans as part of the ecosystem in the Peruvian Northwest Amazon. As the Awajún are increasingly incorporated into market economies, these notions and practices interact and, at times, converge with the instrumental rationalities of neoliberalism and notions of sustainability and equity that are embedded in local agricultural support programs. We detail these interactions by drawing on ethnography and secondary sources. In the case of the Awajún, we find that Indigenous rationalities are not entirely subsumed by neoliberalization. To the contrary, Awajún values of tajimat pujut and their relationship with the Amazonian territory mediate, transform, and delimit neoliberal governmentality practices. These discourses and relations coexist in tension with an emerging marketization of the Amazon, and are being reworked through contradictions that shape Indigenous productive decisions and impact the sustainability of the forest. Marketization creates opportunities for the native population to obtain income while promoting capital circulation in neighboring markets and amplifying nascent inequalities. Tajimat pujut resonates with discourses and policies relating to pro-poor sustainable local development, producing an Awajún preference for small crop production and aversion to forest depletion, contrary to mestizo preferences for intense monoculture. In this way, neoliberalization is rendered incomplete even as market relations are increasingly incorporated into Awajún economic practices. [ABSTRACT FROM AUTHOR]