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Composition, size distribution, structure, and function of deep‐sea marine communities must be understood before they are impacted by anthropogenic effects. The deep‐sea ecosystem of the Colombian Caribbean Sea is unexploited with no fishing activity ever registered. We quantified the current state of the marine community using body size distribution (size‐spectra), size‐based indicators, minimum length (LMIN), maximum length (LMAX), average length (Lmean), standard deviation of length (LSD), 10th and 90th percentiles of the length distribution, Shannon–Wiener diversity (H′), and Pielou's evenness (J′) to generate a baseline of potential ecological indicators that contribute to management and conservation of the Colombian bento‐demersal community of deep‐sea marine ecosystem. Sampling was in the Colombian Caribbean Sea at 58 stations during four samplings in August and December 2009, 21 stations in March and May 2010, and 45 stations from August to December 2020, using the swept area method, at depths of 200–550 m. Catches included >50% families and species of fish, followed by 27 families (30%) and 33 and species (37%) of crustaceans. Chondrichthyes included 14% families and 9–11% species. Cephalopods included 2–3% families and 1–4% species. Size‐spectra analysis confirmed expected values for unexploited communities in three sampling years for teleostei, crustacea, and whole community. [ABSTRACT FROM AUTHOR]

Coral calcification is critical for reef growth and highly dependent on environmental conditions. Yet, little is known about how corals calcify under sub-optimal conditions (e.g., turbid waters, high nutrients, sedimentation) or coral growth in understudied regions such as the Colombian Caribbean. We therefore assessed the calcification and linear extension rates of five coral species across an inshore-to-offshore gradient in the Colombian Caribbean. A suite of environmental variables (temperature, light intensity, visibility, pH, nutrients) measured during the rainy season (May – November 2022) demonstrated more sub-optimal conditions inshore compared to offshore. Across all species, calcification rates were 59% and 37% lower inshore compared to the offshore and midshore sites, respectively. Across all sites, massive corals calcified up to 92% more than branching species but were more susceptible to heat stress and sub-optimal inshore conditions. However, branching species had reduced survival due to extreme climatic events (i.e., bleaching, hurricanes). A comparison with published rates for the wider Caribbean revealed that massive species in the Colombian Caribbean grow up to 11 times more than those in the wider Caribbean while branching species generally have similar growth rates, but this finding may have been influenced by fragment size and/or heat stress. Our findings indicate that present-day environmental conditions, coupled with more frequent extreme climatic events, will favor massive over branching species in midshore areas of the Colombian Caribbean. This suggests a possible shift towards faster calcifying massive species in future coral communities, possibly exacerbating the ongoing regional decline in branching species over the last decades. [ABSTRACT FROM AUTHOR]

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Copyright of Jangwa Pana is the property of Revista Jangwa Pana 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.)

Copyright of Ad-gnosis is the property of Ad-gnosis Journal 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.)

For many, the coal industry in Colombia has been synonymous with progress, economic growth and access to education and housing opportunities on the Caribbean mining frontier. However, little has been said about the slow, dosed and silent violence that has permeated the ecological systems and human groups alike. This article argues that health and environmental damage in the Cesar mining corridor express quotidian, but no less painful and profound, forms of environmental suffering. Using notions such as toxic uncertainty, the article expands our understanding of environmental violence in a region prey to coal pollution.

Copyright of Jangwa Pana is the property of Revista Jangwa Pana 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.)

Copyright of Therya is the property of Asociacion Mexicana de Mastozoologia, A. C. 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.)

Rice has shaped Afro-diasporic cultures, identities and geographies in the Americas. In the Colombian Caribbean, throughout the 20th century, agrarian modernization re-configured black geographies of rice by transforming cultivated landscapes and disavowing black people´s agricultural knowledges and practices. This article analyzes tongueo, a form of rice harvesting that became widespread during the 1970s and 1980s in the municipality of Marialabaja, a historic afro-campesino territory. Tongueo involved women and children collecting and pounding the rice that was left after mechanized harvest. The stories told by tongueadora women re-signify this practice as a space of enjoyment, sociability and transmission of cultural memory. Drawing on theoretical elements of black geographies and Latin American feminist spatial thought, I argue that tongueo was an embodied territorial practice that occurred within the spaces of agrarian modernization. By shedding light on the configuration of black geographies in articulation with racialized agrarian change in Colombia, the article contributes to broaden the field of black geographies beyond Anglo-centric literature, establishing a dialogue with Latin American debates on territory and body-territory. [ABSTRACT FROM AUTHOR]

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales 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 research proposes a balance of the studies that have been carried out on LGBTIQ+ practices in Colombia, from the last decades of the last century to the 2000s, establishing the categories and literary genres through which it has been deepened in relation to the most innovative theories in the field of gender studies. The purpose was to investigate the levels at which the research proposals have these practices as an object of study in the light of cultural and feminist studies. Through this perspective, the advances achieved in the artistic, cultural and political fields by the protagonists of these stories are reviewed, including especially the transvestites, and the drag queens.

Morphometric aspects, sexual ratio and reproductive activity of striped red snapper (L. synagris) in the Atlantic coastal zone were analyzed, based on the relationship between length and weight of the fish and weight of the gonad and reproductive indices. The coefficient of determination of the total length and total weight in females (R2=0.98) and in males (R2=0.91), gonad weight and total length in females (R2=0.73). indicating relationship between total length and total weight. Meanwhile, for males there was no relationship between gonad weight and total length (R2=0.49). [ABSTRACT FROM AUTHOR]

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales 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.)

As sea-level rise (SLR) and human-made interventions affect coastal currents and sediment transport, coastal barriers have become more vulnerable to the effect of storms, hurricanes, and climate variability. The response of each barrier is unique and depends on wave regime, coastline orientation, weather conditions, bathymetry, and type of human-made interventions, among other factors. In the Magdalena River deltaic barrier, located on the Colombian Caribbean coast, coastal erosion has caused the loss of hundreds of square kilometers of critical ecosystems, such as wetlands and lagoons, since the 1960s. This work aims to analyze the short-term drivers behind the observed loss of lagoons, particularly the drivers of lagoon breaching events and subsequent healing along the deltaic barrier. Lagoon breaching events and healings were detected using satellite imagery, and the timing of these events was related to prior local atmospheric, oceanographic, and fluvial conditions. The findings reveal that the dynamics of the lagoons are driven by extreme river discharges and energetic wave conditions associated with storms or hurricanes. Healing is driven by the sediment supplied by littoral currents and average waves punctuated by energetic events. The cumulative effect of breaching and healing has resulted in a deltaic barrier that has rolled over the lagoons, reducing their size over time. These findings provide a better understanding of the forces of coastal retreat and will help inform future management decisions of the coastal zone. [ABSTRACT FROM AUTHOR]

The tiger shrimp Penaeus monodon is a native species of the Indo-Pacific Ocean that was introduced to promote its cultivation in several American countries, including Colombia. As a result of inappropriate aquaculture practices, it has established itself in the wild in almost all the Colombian Caribbean Sea. To evaluate the genetic diversity, population structure, and origin of the founder populations, samples from three sites in the Colombian Caribbean were analyzed from 10 microsatellite loci and the mitochondrial DNA Control Region. Genetic diversity similar to native populations was found to be present in three relatively discrete populations and their origin is related to natural populations from Thailand, the Philippines, Taiwan and China. We discuss how oceanographic conditions and culture systems of tiger shrimp facilitated the success of biological invasion processes in marine ecosystems of the Colombian Caribbean.

Palynology is an important tool for establishing age and interpreting paleoenvironments in both continental and marine deposits. This paper provides a summarized overview of the palynological information published for deposits in Colombia ranging from the Paleozoic to the Miocene-Pliocene. We found 111 publications in indexed journals contain palynological data from 511 sections or wells. Palynology of the Paleozoic in Colombia has been mainly studied in the Eastern Llanos; the Triassic-Jurassic is virtually unknown; there are studies on the Cretaceous in the Eastern Cordillera, the Upper Magdalena Valley, and Catatumbo; the Paleogene has been studied in sedimentary rocks of the Llanos foothills, the Eastern Cordillera, the Middle Magdalena Valley, Catatumbo, and in some isolated spots in La Guajira and the Caribbean while the Neogene has been studied in the Amazon, the Eastern Cordillera, and the Llanos foothills. Recent publications for the Caribbean and Pacific regions and a palynological zonation for the Llanos and its basins have been successfully used in other basins in the country. In recent years, the interest of the Colombian government in exploring new areas for hydrocarbon exploration in the Caribbean facilitated a partnership between the National Hydrocarbons Agency and the University of Caldas to conduct palynological studies in deposits ranging from the Late Cretaceous to the Quaternary. Here we present a summary of the main advances in Caribbean palynology.

Introduction: Ants fulfill important ecological functions in many ecosystems and are highly sensitive to changes in land use. However, the response to these changes is poorly documented, at large spatial scales and in different land uses, in poorly studied ecosystems such as the Serranía del Perijá. Objective: To analyze the richness, diversity, and composition of ant communities in four land uses of two agroforestry landscapes of the Serranía del Perijá, Cesar, Colombia. Methods: Two sampling windows of 4 × 4 km were delimited in two agroforestry landscapes (compensation and non-compensation). In each window and landscape four land uses were chosen: forests, coffee agroforestry systems, natural regeneration and pastures, in which two trapping methods were applied: Pitfall traps and Winkler bags. Six environmental variables were measured: canopy cover, leaf litter height, bulk density, temperature, humidity and soil hardness. The sampling effort was 384 Pitfall traps and 192 m2 of leaf litter extraction. The fieldwork was conducted between February and March 2021. Results: Ants showed high sensitivity to changes in land use. Species diversity and richness decreased in land uses with less natural vegetation cover, such as pastures; while forests, in both landscapes, retained the highest species richness. Canopy cover and leaf litter availability were the environmental parameters that favored the diversity and richness of ant communities in all land uses. No differences were found between the ant composition of the two landscapes studied. Conclusions: Ants respond to changes in land use, particularly to vegetation cover. Our hypothesis was confirmed since land uses with high vegetation cover were the habitats with the greatest richness and diversity of ants. Environmental heterogeneity, a product of the dynamics of landscape transformation, is an element that should be considered in future research. [ABSTRACT FROM AUTHOR]

In the Los Corales del Rosario y San Bernardo National Natural Park, threats that affect the biodiversity of its ecosystems were identified, the accumulation of solid plastic waste on the sandy beach coastline being the most notable. Therefore, for more than a decade clean-up days have been carried out in coordination with different local stakeholders as an environmental education strategy. Based on the above, this study aimed to systematize the experiences of eight coastal clean-up days in order to identify lessons learned, sensitization and awareness towards conservation, as well as the lessons learned in their organization. The systematization was conducted based on a documentary analysis, semi-structured interviews and reports of the experiences of the participants. The results show the contributions generated by the clean-up days in environmental awareness. Even so, it is essential that such days are constant and articulated with other educational activities to generate processes of change of attitudes and an environmental culture. [ABSTRACT FROM AUTHOR]

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Copyright of Estudios Románicos is the property of Servicio de Publicaciones de la Universidad de Murcia 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.)

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Copyright of Memorias is the property of Fundacion Universidad del Norte 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.)

Ligninolytic fungi derived from coastal and marine environments, particularly mangrove swamps, are considered potential sources of novel enzymes with unique properties (thermostability, high-redox potential, salt and pH tolerance) not found in terrestrial strains, which are very attractive for the development of effective solutions for the elimination of contamination caused by the textile industry. In this study, the isolation and ligninolytic screening of 73 fungal strains derived from mangrove swamps were achieved. Ten strains showed ligninolytic potential, among which, the basidiomycete identified as INV BAS1 (Cyphellaceae family) exhibited outstanding laccase activity (11873.8 ± 329.0 UL−1). The laccase production was enhanced (5-fold) by optimizing the medium components concentration using a statistical design that combined the one factor at a time method and a central composite rotational design (CCRD), under Response Surface Methodology (RSM). Decolorization of the recalcitrant textile dye Remazol Briliant Blue R (RBBR) was carried out through fermentation and the use of enzyme extracts, reaching decolorization percentages of up to 95.64 ± 1.28 %, under alkaline and high salinity conditions. The laccase activity in the bulk extracts was the major responsible for the RBBR degradation according to gel zymography, UV-Vis and ATR-FTIR spectroscopy. These results contribute to the knowledge of fungal diversity in tropical mangroves and confirm their potential for the development of new bioremediation strategies in high-salt and alkaline effluents generated by the textile industry. [ABSTRACT FROM AUTHOR]

We present a list of mammals in the department of Sucre, based on the review of specimens deposited in biological collections, new and verifiable records in scientific literature. We found 143 species, representing 26.3% of mammals recorded for Colombia. Five species are endemic to Colombia, Cebus versicolor, Pattonomys semivillosus, Proechimys chrysaeolus, Saguinus oedipus and Sylvilagus sanctaemartae; five are categorized as Data Deficient, and 13 and 17 in some category of threat at national and global level, respectively. The bat Ametrida centurio is recorded for the first time in Colombia, based on a photograph taken in the municipality of Santiago de Tolú. We recorded higher species richness to the north of the department, in the sub-regions Golfo de Morrosquillo and Montes de Maria, probably the result of the increased collection effort. It is necessary to increase local efforts, due to insufficient or null exploration in some areas of the department. [ABSTRACT FROM AUTHOR]

Copyright of Confluenze. Rivista di Studi Iberoamericani is the property of Universita di Bologna, Dipartimento di Lingue, Letterature e Culture Moderne 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.)

Copyright of Diversitas (17949998) is the property of Universidad Santo Tomas, Facultad de Psicologia 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.)

Copyright of CLIO América is the property of Universidad del Magdalena 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.)

The 2030 Agenda has influenced the design of public policies in Colombia and other countries in the region, but there are many gaps in the way a global policy can be interpreted and adapted to the territories. Thus, this article aims to critically evaluate the public policy of sustainability implemented in the Colombian Caribbean and to suggest contributions from an intercultural socioenvironmental justice perspective. For this purpose, the public policy of sustainability that orients the plans for the use of insular ecosystems in Cartagena de Indias has been examined and confronted with local evidence that shows significant changes in the forms of life and ecological degradation in multi-temporally analysed coverages. Methodologically, this research is based on three aspects: the theoretical discussion of the notions of sustainability and justice in public policies, spatial databases to analyse the transformation of landscapes and ethnographic work with Afro-descendant peoples to recognise their socioecological systems. We found that the public policy of territorial planning aligned with the 2030 Agenda nominally includes a rights approach, but management practices or governance structures do not consider the very high asymmetry in land tenure, the growing private and non-participatory regulation of coasts and the sea or the exclusion of Afro-descendant peoples who claim tenure and autonomy rights. Then, we propose integrated dimensions of sustainability that overcome the socioecological negativity observed and articulate criteria of intercultural justice in public, social and environmental policies. [ABSTRACT FROM AUTHOR]

Didelphis marsupialis is a primary reservoir of Trypanosoma cruzi, etiologic agent of American Trypanosomiasis-AT or Chagas Disease-CD, in America. Some findings of Trypanosoma rangeli have been recorded in this mammal, in sympatry with T. cruzi. In Los Montes de María, Bolívar, Colombian Caribbean, triatomine insects and potential parasite host has been registered, but little is known about the relationship between these parasites and D. marsupialis. We investigated the natural trypanosomatids infection rate in D. marsupialis, applying a parasitological and molecular diagnosis. Twenty D. marsupialis was investigated between 2018 and 2019 using 21 Tomahawk® traps placed on the sylvatic/domestic corridors. Blood was drawn by cardiopuncture after sedation. An aliquot of blood samples was cultured in Novy, Nicolle, McNeal/Roswell Park Memorial Institute medium at 24 °C/60 days for the detection of motile trypomastigotes. Parasite DNA was obtained by salting out methods from positive blood cultures. Trypanosomatids diagnosis was done by Polymerase Chain Reaction-sequencing of V7V8 region of 18S ribosomal RNA (18S-rRNA) gene. Amplicons were sequenced, and consensus sequences were aligned with reference sequences from GenBank. Four isolates corresponded to T. rangeli (20%) and one to T. cruzi (5%). The natural infection of D. marsupialis by T. rangeli and T. cruzi constitutes the first record of these parasites in didelphids in Los Montes de María and the first record of T. rangeli in this marsupial, in the Colombian Caribbean. [ABSTRACT FROM AUTHOR]

The dinoflagellate genus Prorocentrum includes several harmful toxigenic species, predominantly benthic ones. In the past, fast-acting toxicity in mice has been observed in extracts of the epibenthic species P. borbonicum, with the finding of two compounds termed as borbotoxins-A and -B. The presence of palytoxin-like compounds was also suggested from electrophysiological experiments. In the present study, a strain of P. borbonicum was isolated in the continental coast of Colombian Caribbean, in seagrass beds of Thalassia testudinum in Bonito Gordo, Tayrona National Natural Park (PNNT). The morphological and molecular characteristics were consistent with the original and former descriptions for this species. Typical haemolytic activity due to palytoxin was confirmed in P. borbonicum extracts in presence of ouabain, the toxin contents being estimated as 1.9 pg palytoxin equivalents cell-1. HPLC-HRMS analyses of these extracts unambiguously identified the presence of borbotoxins and 42-hidroxy-palytoxin (42-OH-PLTX). This is the first report of palytoxin-like compounds in another dinoflagellate genus than Ostreopsis and the first record of P. borbonicum in Colombia and the Caribbean region.

The palynological study of a composite section of 14 cores drilled from the Sinu-San Jacinto Basin in the Colombian Caribbean (NW South America) provides for the first time a Cenozoic palynostratigraphic zonation scheme for this region. In addition, the study of calcareous nannofossils and planktonic foraminifera allowed an independent calibration of the palynomorph assemblages to the international chronostratigraphic chart. The palynological results were compared with other studies for the northern part of South America and Colombia. Twelve Late Paleocene-Pliocene palynological zones are proposed for the Caribbean, some of which differ from those proposed for the Llanos and Llanos Foothills basins. A Paleocene palynological assemblage is reported for this part of the basin. Variations in the biostratigraphic ranges of some palynomorphs and new species with stratigraphic value are described. High diversity and abundance of dinoflagellate cysts in some stratigraphic intervals require more detailed study. Evidence of reworking in some stratigraphic intervals (e.g., Cretaceous and Oligocene in Miocene sediments), makes it necessary to be careful about the last appearance record of microfossils in exploration and geologic mapping. • Palynological zonation scheme for the Colombian Caribbean (NW South America). • Twelve palynozones proposed for the Cenozoic (Late Paleocene to Pliocene) in the Colombian Caribbean. • Palynomorph age ranges calibrated using calcareous nannofossils and planktonic foraminifera. • First record of late Paleocene palynomorph assemblage to the Caribbean (Sinú-San Jacinto basin). • An improvement of the applicability of zonation schemes proposed for the north of South America. [ABSTRACT FROM AUTHOR]

This article presents the creation of bathymetric cartography for San Andrés, Providencia, Santa Catalina, and the Colombian Caribbean to find suitable areas for implementing an ocean thermal energy conversion (OTEC) system. The methodology to obtain the bathymetry uses data collection, digitization, and interpolation. The data are processed using the Surfer® software; in this way, the digital terrain model (DTM) maps are generated for each sector. The objective is to find the minimum distance to reach a depth of 1000 m since this is the distance where a temperature difference of 20 ∘ C is obtained. Thus, it is possible to identify suitable areas to locate an onshore or offshore plant in Santa Marta, Barranquilla, southwestern and northwestern San Andrés, the western part of Santa Catalina, and the southwestern part of Providencia. [ABSTRACT FROM AUTHOR]

The diversity of deep-sea cultivable bacteria was studied in seven sediment samples of the Colombian Caribbean. Three hundred and fifty two marine bacteria were isolated according to its distinct morphological character on the solid media, then DNA sequences of the 16S rRNA were amplified to identify the isolated strains. The identified bacterial were arranged in three phylogenetic groups, Firmicutes, Proteobacteria, and Actinobacteria, with 34 different OTUs defined at ≥ 97% of similarity and 70 OTUs at ≥ 98.65%, being the 51% Firmicutes, 34% Proteobacteria and 15% Actinobacteria. Bacillus and Fictibacillus were the dominant genera in Firmicutes, Halomonas and Pseudomonas in Proteobacteria and Streptomyces and Micromonospora in Actinobacteria. In addition, the strains were tested for biosurfactants and lipolytic enzymes production, with 120 biosurfactant producing strains (mainly Firmicutes) and, 56 lipolytic enzymes producing strains (Proteobacteria). This report contributes to the understanding of the diversity of the marine deep-sea cultivable bacteria from the Colombian Caribbean, and their potential application as bioremediation agents. [ABSTRACT FROM AUTHOR]

The establishment of extensive livestock systems in the Colombian Caribbean Region has historically generated a strong loss of the tropical dry forest (TDF) with negative effects on biodiversity. Currently, the implementation of silvopastoral systems (SPS) has been proposed with strategy to curb the loss of biodiversity caused by the conventional management system (CS). The objective was to evaluate the effect of SPS and CS of extensive livestock on the assemblage of bats associated with fragments of TDF. During a continuous year and a sampling effort of 30,240 h-net/night, the structure and composition of bat assemblage between SPS and CS were compared. 2788 bats belonging to six families, 23 genera, and 39 species were captured. The Phyllostomidae family presented the highest species richness (S = 30), with the greatest abundance in the Stenodermatinae subfamily (n = 1543). Bat assemblage in the SPS fragments was more equitable; and the relative abundance per species, per genera, and per foraging guilds was also significantly higher. The capture success showed significant variations between the climatic seasons (dry and rainy). The rate of species turnover was higher in the CS fragments. The species Artibeus planirostris, Artibeus lituratus, Carollia perspicillata, Carollia castanea, Phyllostomus discolor, Dermanura phaeotis, Uroderma convexum, Glossophaga soricina, C. brevicauda, and Sturnira lilium accounted for 92% of the captures. In conclusion, frugivorous bats were more abundant in the SPS, type of extensive livestock management that can generate greater temporal stability of bat assemblage. This research provides the first scientific evidence of the positive effect of silvopastoral management on the diversity of bats in tropical dry forest areas of the Colombian Caribbean region. [ABSTRACT FROM AUTHOR]

The blue land crab Cardisoma guanhumi is a species of commercial interest and is being harvested for human consumption. It is distributed throughout the Caribbean from the Antilles to the southern part in Venezuela and Colombia, with also records in Brazil. The first studies of this crab in Colombia date back to the early 1970s, which focused on biological and ecological aspects. Population studies in the Colombian Caribbean started in 2000, but they are scarce, and some are not published. For San Andrés Island, the Gulf of Urabá, and the Magdalena department, two studies have been done for each one, and for the three studies one is published, and the other is not. Of the unpublished studies, two correspond to graduate studies (Urabá and Magdalena) and one to a technical report (San Andrés). For the Guajira department, there is a published article that mentions some aspects of this crab population. For the department of Atlántico, there is a technical report. Regarding the department of Córdoba, there are two theses. The departments of Bolivar and Antioquia have three studies each. Most of these studies contain information about the sizes and weights of the blue land crab, and some of them also have information on the population density via burrow count. The largest average sizes and weights have been recorded on the island of San Andrés. The highest average population densities have been recorded for Bahía Concha in the department of Magdalena and the lowest for the department of Bolívar in the Corregimiento La Boquilla. [ABSTRACT FROM AUTHOR]

The effects of climate change on tropical ecosystems cannot be interpreted based on physical variables alone. Severe water shortages and deterioration of ecosystems are most acute in places where historical inequalities occur, such as unequal access to land and other goods and rights necessary for the livelihood of marginalized populations. This paper explores environmental transformations and their repercussions on water resources based on spatial analysis and fieldwork carried out in the Colombian Caribbean. We have engaged with peasant and Afro-descendant populations who have been excluded from water use and now face problems in sustaining their way of life. [ABSTRACT FROM AUTHOR]

This article analyzes how the public universities of Colombia formulated theories around Marx and Marxism in the second half of the 20th century. These "debates" were open to consultation, with the publication of several texts that they studied as a cluster of theories originating in the 19th century that would serve to study practices such as the socialist economy planned by the State, the critique of Eurocentrism, and transformation projects. politics, in 20th century societies. [ABSTRACT FROM AUTHOR]

Córdoba is one of the departments of the Colombian Caribbean region with the greatest attention for the study of mammals, which has allowed the previous list of 117 species of mammals to be increased. Thanks to new fieldwork in previously unexplored areas, and to taxonomic changes, the diversity of mammals in Córdoba expands to 141 species, adding 24 new species, including 14 taxonomic changes and the geographical distribution extension of 42 species within the department. The Chiroptera, Cetacea, Rodentia and Didelphiomorphia orders have the greatest changes and additions. [ABSTRACT FROM AUTHOR]

Copyright of Revista Facultad de Ciencias Economicas: Investigacion y Reflexion is the property of Revista Facultad de Ciencias Economicas 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.)

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales 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.)

Copyright of Lingüística y Literatura is the property of Universidad de Antioquia, Facultad de Comunicaciones 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.)

Copyright of Boletin de Geologia is the property of Universidad Industrial de Santander 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.)

We reconstructed changes in vegetation and climate conditions during the last 1800 years in a column of sediment 4 m deep (Playa Pozo sector, Neguanje Bay, Tayrona National Natural Park, department of Magdalena, Colombia). We characterized the main components (mineral elements, organic matter), micro-stratigraphy (types of organic matter), humidity variations (%), organic and inorganic carbon, and palynological associations (specifically pollen grains), and counted spores of fungi, algae, ferns, plant debris, and insects. The palynological associations (dominant elements) were defined and related to the current types of vegetation. The definition of the dominant groups in the palynological spectrum and their relationship with the current vegetation types was associated with the stratigraphic conditions of the sediments to detect the changes that occurred during this period. In the reconstruction of the paleoenvironments, we determined the relationship between the defined palynological associations and the stratigraphy of the sediments, the humidity (precipitation), and the covered area. For this purpose, we used the temperature calibration curves of the last 2000 years proposed by various authors. We did not recover enough palynomorphs at the base of the column between 400 and 380 cm deep (2000-1693 years BP), but organic components of marine origin predominated in the sediment, a condition associated with a warm period in the central and eastern Colombian Caribbean coastal environments. In zone I (1693-1294 years B.P.), the mangrove was consolidated and in zone II (1294-1078 years A.P.), it expanded with the vegetation of flooded areas. In zone III (1078-654 years B.P.), we detected the occurrence of the greatest mangrove development, especially by the dominant species Rhizophora mangle. In zones IV and V (654 years A.P.-present), the mangrove cover decreased. This period was less warm than the previous ones, similar to the prevailing conditions in the Ciénaga Grande de Santa Marta and its surroundings.

Copyright of Boletin de Geologia is the property of Universidad Industrial de Santander 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.)

Increased sedimentation in the marine environment has been described as a key factor in the degradation of coral reefs. One of the most important biological components of coral reefs is macroalgae. The objective of this study was to determine whether the effects of terrigenous sediments on macroalgae affect the current state of the coral reef ecosystem. In an in situ experiment in Capurganá Bay, terrigenous sediments were added to artificial plates and the impact on the recruitment and growth of the macroalgae was examined. In this experiment, three treatments were used: sediment addition and two natural conditions, one up to 10 m distance from the sediment addition (control 1) and one between 15 and 20 m distance from the sediment addition (control 2). The results indicated a high complexity and variability in the response of reef algae to the effects of sedimentation depending on the sediment grade size deposited. The addition had a positive effect on the recruitment and growth of filamentous algae, primarily red algae, whereas it had a negative effect on coralline algae. The sediments found on the plates did not significantly change the macroalgal structure (P>0.05). However, a trend was observed in the change of the algal cover in each treatment. These results indicate that there is a wide range of response of the algae depending on the functional groups and the nature of the sediment.

The journalistic chronicles of Alfonso Fuenmayor are closely related to the urban environment of Barranquilla. From a psychosocial approach and certain theories of the cultural studies, we will analyze how certain elements that appeal to the urban identity construction are conjugated, finding its foundation in the relationship with that urban environment itself. We will study a plurality of points of view, and the dynamics in the role of the chronicler to reveal his project of identity formation, firmly anchored in notions of tradition and progress and rooted in elements of the Caribbean popular culture. [ABSTRACT FROM AUTHOR]