Biotropica最新文献

{"title":"Population Estimate and Spatial Distribution of Capybaras in Lake Paranoá, Brasília, Brazil","authors":"Eduardo Guimarães Santos,&nbsp;José Roberto Moreira,&nbsp;Emanuelle Cristina Benvenutti Rodrigues,&nbsp;Filipe Vieira Ataídes,&nbsp;Rodrigo Lima Martins de Oliveira,&nbsp;Helga Correa Wiederhecker","doi":"10.1111/btp.70039","DOIUrl":"https://doi.org/10.1111/btp.70039","url":null,"abstract":"<p>The capybara is the largest living rodent, attracting attention due to its large size, its formation of large herds, and because it is commonly seen in urban environments. Thus, understanding the dynamics of capybara populations living in urban environments is relevant, especially given the conflicts observed between the species and humans in these environments. Here, we investigated the hypothesis of overpopulation of the capybara in Lago Paranoá, a lake in a large neotropical city, Brasília, Brazil. To do this, we investigated their spatial distribution at the site and estimated the capybara population using a variation of the mark-recapture method and compared it to known population estimates for the species. We found that the capybaras in our study area mainly form small flocks of 1 to 9 animals and occupy almost the entire shore of Lake Paranoá. We estimated the occurrence of 0.30 to 0.52 ind./ha (average = 0.41 ind./ha), demonstrating that the number of capybaras in our region is small when compared to capybara counts in other regions (range 0.075–6.44 ind./ha). Furthermore, we found that although the capybara population fluctuates throughout the year, it appears to be stable, not supporting our initial hypothesis. Urban areas can provide habitat for some species, which may help offset negative effects of losses of unmanaged habitats; however, this raises the possibility of wildlife–human conflicts.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143896851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anisophylly Is Associated With Climate in the Neotropical Genus Triolena (Melastomataceae)","authors":"Kate E. Samra,&nbsp;Fabián A. Michelangeli,&nbsp;Eve J. Lucas","doi":"10.1111/btp.70041","DOIUrl":"https://doi.org/10.1111/btp.70041","url":null,"abstract":"<p>Anisophylly is a peculiar leaf trait in some opposite-leaved taxa where opposing leaves are distinctly unequal. This study uses an expert-curated specimen dataset to explore relationships of canopy cover and climate with the presence and intraspecific variation of anisophylly in the genus <i>Triolena.</i> Canopy and climate conditions are investigated between species and within a single species through beta regression models. No relationship was found between canopy cover and anisophylly. However, anisophylly is associated with conditions of high precipitation and high isothermality, which is evident across <i>Triolena</i> and within a single species. In addition, partitioned ecoregion analyses illustrate that different types of anisophyllous leaf states occur in distinct ranges of precipitation and isothermality. Results suggest that anisophylly is associated with climate in <i>Triolena</i>.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143897126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ATBC 2024 Student and Early Career Awards","authors":"Imma Oliveras,&nbsp;Meghna Krisnadas,&nbsp;Lúcia G. Lohmann,&nbsp;Jennifer S. Powers","doi":"10.1111/btp.70031","DOIUrl":"https://doi.org/10.1111/btp.70031","url":null,"abstract":"&lt;p&gt;The Association for Tropical Biology and Conservation (ATBC) recognizes the exceptional research of students and early career scientists through awards presented at the ATBC annual conferences. The ATBC is pleased to announce the 2024 winners of these awards:&lt;/p&gt;&lt;p&gt;The &lt;b&gt;Luis F. Bacardi Award for Advances in Tropical Conservation&lt;/b&gt; is awarded to the best conservation talk presented during the ATBC Annual Conference by an early career scientist (i.e., a researcher who received his/her Ph.D. no more than 5 years before the meeting date). This award was established in 2005 with an endowment from the Lubee Bat Conservancy, an international nonprofit organization based in Gainesville, Florida, USA. The Lubee Bat Conservancy was founded in 1989 by the late Luis F. Bacardi and is dedicated to protecting biological diversity through the conservation of fruit- and nectar-feeding bats. At the 2024 ATBC Annual Meeting, &lt;b&gt;Meghna Bandyopadhyay&lt;/b&gt; from Wildlife Trust of India was awarded the Luis F. Bacardi Award for her presentation entitled “What decides coexistence of carnivores; size or behavior?”&lt;/p&gt;&lt;p&gt;The &lt;b&gt;Alwyn Gentry Presentation Awards&lt;/b&gt; were established to recognize outstanding oral and poster presentations given by students at the ATBC Annual Conference. Alwyn Gentry (1945–1993) was a prominent botanist who made exceptional contributions to the study of the diversity and conservation of tropical plants and to the training of students from the Americas. These awards are in remembrance and recognition of the contributions of this singular scientist, colleague, supportive mentor, and friend. At the 2024 ATBC Annual Meeting, &lt;b&gt;Liam Jasperse-Sjolander&lt;/b&gt; from the University of Colorado Boulder, United States, was awarded the Alwyn Gentry Award for the Best Oral Presentation for his talk entitled “Habitat and fruit availability drive forest elephant fission-fusion dynamics in a forest-savannah mosaic.” The awardees for the &lt;b&gt;Alwyn Gentry Award for the Best Poster Presentation&lt;/b&gt; were &lt;b&gt;Simran Prasad&lt;/b&gt; from the Centre for Wildlife Studies, India, for her presentation entitled “An elephantine problem in the Nilgiris: Examining household wealth inequities and community attitudes towards elephants” and &lt;b&gt;Katherine Culbertson&lt;/b&gt; from the University of California, Berkeley, United States, for her presentation entitled “Arrested rainforest regeneration? Changing disturbance regimes and non-forest vegetation impair natural recovery in a hyperdiverse, endangered rainforest landscape.”&lt;/p&gt;&lt;p&gt;The New Phytologist Trust graciously funds annual awards to recognize achievements in Plant Biology by student authors presenting at the ATBC Annual Meeting. At the 2024 Annual Meeting, the &lt;b&gt;New Phytologist Prize for Best Poster in Plant Biology&lt;/b&gt; was awarded to &lt;b&gt;Sarafina Masanja&lt;/b&gt; from the Sokoine University of Agriculture, Tanzania, for her poster entitled “Impact of agricultural expansion on tree species composition and diversity along elevation ","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2024 ATBC Honorary Fellows","authors":"Norbert Cordeiro,&nbsp;Jennifer S. Powers,&nbsp;Lúcia G. Lohmann","doi":"10.1111/btp.70032","DOIUrl":"https://doi.org/10.1111/btp.70032","url":null,"abstract":"<p>In 1963, the Council of the Association for Tropical Biology and Conservation established the election of Honorary Fellows as ‘persons of long distinguished service to tropical biology.’ This is the highest award given by the Association. To date, we have selected more than 100 Honorary Fellows from over 20 countries. This year, we celebrate two more outstanding Honorary Fellows who are both widely recognized for their scholarship and mentorship. On behalf of the Honorary Fellow Nomination Committee, we present the 2024 Honorary Fellows, Dr. Miguel Martínez-Ramos and Dr. Pantaleo K. T. Munishi.</p><p>The authors declare no conflicts of interest.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Periodic Mangrove Growth Induced by Water Salinity Fluctuations Under Tropical Monsoon Climate, Thailand","authors":"Sasitorn Poungparn,&nbsp;Chadtip Rodtassana,&nbsp;Suthathip Umnouysin,&nbsp;Piyapon Kankong,&nbsp;Akira Komiyama,&nbsp;Vilanee Suchewaboripont,&nbsp;Tamanai Pravinvongvuthi","doi":"10.1111/btp.70037","DOIUrl":"https://doi.org/10.1111/btp.70037","url":null,"abstract":"<div>\u0000 \u0000 <p>Mangrove tree growth is crucially affected by water salinity in tropical monsoon areas having distinct seasonal rainfall. However, the seasonal growth pattern of mangroves in these areas remains insufficiently understood. We investigated stem growth and leaf phenology of mangroves and inundation water salinity over 2 years in an estuarine mangrove forest in Trat with clear seasonality and abundant rainfall (2938 mm), and in a shoreline fringe forest at Bangpu with moderate rainfall (764 mm) in Thailand. Salinity fluctuations at both sites were regulated by the monthly rainfall and the geographical location. All studied mangroves showed a seasonal stem-growth pattern, with higher growth rates in the wet seasons due to lower water salinity. The varied rates of seasonal stem growth among species at Trat corresponded with their zonation. The leaf emergence rates were also high in the wet season for <i>Rhizophora apiculata</i> at Trat and <i>Avicennia alba</i> at both sites. Salinity fluctuation driven by the seasonal rainfall directly affected leaf emergence of <i>R. apiculata</i> and both leaf emergence and stem growth of <i>A. alba</i> at Trat. However, at Bangpu, leaf phenology of <i>A. alba</i> responded to the temperature and decoupled from stem growth, which is directly influenced by monthly rainfall. <i>Rhizophora apiculata</i> stem growth was associated with the variation in leaf emergence. Thus, seasonal changes in the saline environments induced the periodic growth pattern of mangroves. Interestingly, the growth pattern of <i>A. alba</i> growing under different rainfall intensities responds to different triggers and indicates its high ecophysiological plasticity, enabling it to thrive across tropical mangrove forests.</p>\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tropical Ant Communities Under Agroforestry Can Be Diverse but Lack Trait-and-Environment Associations","authors":"Mohammad Abdus Shakur,&nbsp;Sumanta Bagchi,&nbsp;Pronoy Baidya,&nbsp;Navendu V. Page,&nbsp;Gautam Talukdar","doi":"10.1111/btp.70035","DOIUrl":"https://doi.org/10.1111/btp.70035","url":null,"abstract":"<div>\u0000 \u0000 <p>Human land use often alters community composition that affects many related ecosystem functions. However, intermediate-intensity land use, such as agroforestry, can be a refuge for biodiversity and can maintain ecosystem functions and services in working landscapes. We quantified how the alpha and beta diversity of ants (Hymenoptera: Formicidae) vary with human land use in the Kodagu region of the Western Ghats, India, across four land use types (forests, forest fragments, and two types of coffee plantations with either native or non-native shade trees). We studied ants, as they perform a wide range of ecological functions such as predation, herbivory, seed dispersal, and decomposition, etc., in such landscapes. We also assessed the functional diversity of ants and estimated the interactions between their traits and the environment. We found that the plantations, on average, had 26% lower species richness than forests and forest fragments, and functional richness was 31% lower in non-native plantations. However, plantations showed higher beta diversity than forests at both taxonomic and functional levels. Interestingly, turnover was higher in non-native than native plantations by 32% and 24% at taxonomic and functional levels, respectively. Plantations also had weak and few ants' trait-and-environment interactions, suggesting that environmental filters may not be influential in structuring ant communities under human land use, compared to forests. Overall, while ant communities under human land use differ from those in forests, they can be heterogeneous and able to perform similar functions. Our findings highlight the importance of agroforestry as working landscapes which can maintain biodiversity and ecosystem functions.</p>\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pyraloid Moth Assemblages Exhibit Complex Morphological Patterns Across an Ecuadorian Mountainous Forest","authors":"Victor Sebastian Scharnhorst,&nbsp;Konrad Fiedler","doi":"10.1111/btp.70033","DOIUrl":"https://doi.org/10.1111/btp.70033","url":null,"abstract":"<p>We tested how morphological traits and species diversity of Pyraloidea moth assemblages vary across an Andean rainforest elevational gradient in Ecuador, and how environmental conditions shape these patterns. We analyzed 4161 individuals representing 212 species from a larger dataset of 10,337 individuals and 749 morpho-species, using the latter for cross-validation, and related our findings to ambient temperature and vegetation cover. Our multivariate analysis at 22 sites from 1020 to 2700 m above sea level identified five species assemblage clusters, revealing a near-linear decrease in species diversity with cooler temperatures. Community-weighted means (CWMs) of forewing length, indicating body size, increased nearly linearly with dropping temperatures, contrasting with results found for Geometridae moths at the same sites. Forewing aspect ratio (AR) demonstrated a U-shaped relationship with temperature, while wing loading (WL) followed a hump-shaped trajectory. Around 2000 m, Pyraloidea assemblages exhibited the lowest AR and highest WL, indicating morphological adaptations to dense forests, in contrast to both the more open forests near the treeline and the tall rainforest found at lower elevations. Subfamily-level analyses revealed variable patterns: Acentropinae, with strictly aquatic larvae, showed larger sizes at cooler elevations but less wing shape variation, likely reflecting limited forest dependence on maneuverability. Musotiminae, with a larval diet of diverse ferns, exhibited wing morphologies more related to canopy openness than temperature, indicating adaptations to navigating different fern habitats along the gradient. Our observations reveal complex insect–environment interactions that challenge the applicability of just one common theoretical framework for explaining temperature–size relationships among different moth clades.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biotropica at the Forefront of Tropical Seed Dispersal Ecology","authors":"João Vitor S. Messeder,&nbsp;Fernando A. O. Silveira","doi":"10.1111/btp.70034","DOIUrl":"https://doi.org/10.1111/btp.70034","url":null,"abstract":"<p>Seed dispersal is one of the most frequently published topics in Biotropica. In this commentary, we highlight Biotropica's main contributions to the fertile field of frugivory and seed dispersal while offering a few ideas to guide the next generation of studies in the journal.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Rivers as Geographical Barriers in Shaping Molecular Divergence of Neotropical Primates","authors":"William D. Helenbrook,&nbsp;Jose Valdez","doi":"10.1111/btp.70028","DOIUrl":"https://doi.org/10.1111/btp.70028","url":null,"abstract":"<div>\u0000 \u0000 <p>We quantitatively tested the riverine barrier hypothesis and its influence on biogeographical distributions and molecular variation in New World monkeys (Parvorder: Platyrrhini). Using mitochondrial markers (cytochrome oxidase subunit II and cytochrome b), we analyzed taxonomic differences and the effects of geographical barriers on molecular patterns across Central and South America. Nearly 80% of described species are separated by geographical barriers, including several mountain chains. River width exhibited a negative correlation with molecular similarity in adjacent taxa for both molecular markers. Several presently described taxa were not supported based solely on these molecular phylogenetic markers, including <i>Saimiri</i>, <i>Mico</i>, <i>Cebus</i>, <i>Sapajus</i>, and <i>Cherecebus</i>. These taxonomic issues are far more common where river barriers do not exist. In conclusion, we found a significant correlation between river width and molecular divergence in adjacent taxa, indicating that wider rivers were associated with greater molecular divergence for two commonly used mitochondrial genes. Species boundaries were predominantly found at river interfaces, and in the absence of discernable geological barriers, adjoining species were more likely to exhibit molecular similarity. Our findings suggest that river and mountain barriers are significantly associated with gene flow for neotropical primate taxa. Additionally, river width proves to be a valuable tool for estimating molecular divergence in adjacent taxa, particularly in regions with limited sampling.</p>\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting Climatic Limits Along a Rainfall Gradient of Dipterocarp Species Based on Leaf Turgor Loss Point","authors":"Kiyosada Kawai,&nbsp;Kevin Kit Siong Ng,&nbsp;Soon Leong Lee","doi":"10.1111/btp.70029","DOIUrl":"https://doi.org/10.1111/btp.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>Drought tolerance is an integral determinant of drought survival in trees; thus, an accurate and rapid assessment of drought tolerance can lead to improved prediction of forest responses to droughts. The osmometer method enables the rapid determination of the leaf water potential at turgor loss (<i>π</i>_tlp), a key parameter of drought tolerance, from the osmotic potential at full turgor (<i>π</i>_sat). However, despite its wide applications, there have been few validations in ever-wet tropical rainforests. Here, we assessed the efficacy of the osmometer method in dipterocarps, a dominant tree group in SE Asia in ever-wet Malaysia, and examined the linkage between <i>π</i>_tlp and distribution along a rainfall gradient. The <i>π</i>_tlp determined using the conventional method was strongly and linearly correlated with the <i>π</i>_sat determined using an osmometer. The coefficients of our model were statistically identical to those previously represented, but with a slightly larger intercept (0.21 MPa). Species with more negative <i>π</i>_tlp were distributed in drier habitats, with a relatively larger variation in <i>π</i>_tlp for species confined to ever-wet climates than for those occurring in ever-wet and seasonally dry climates. Some leaf traits, individual leaf area and dry matter content, were associated with <i>π</i>_tlp, but these traits alone could not predict species distribution. We demonstrated the robustness of the osmometer method in ever-wet tropical rainforest species and that <i>π</i>_tlp is associated with current distribution along large-scale moisture availabilities.</p>\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}