Biotropica最新文献

{"title":"Correction to “Racing Amidst Change: Urbanization and Climate Alter Functional Traits and Distribution of an Amazonian Parthenogenetic Lizard”","authors":"","doi":"10.1111/btp.70148","DOIUrl":"https://doi.org/10.1111/btp.70148","url":null,"abstract":"<p>Mendonça, L. R., J. A. R. Azevedo, M. Gordo, and F. P. Werneck. 2025. “Racing Amidst Change: Urbanization and Climate Alter Functional Traits and Distribution of an Amazonian Parthenogenetic Lizard.” <i>Biotropica</i> 57, no. 5: e70077.</p><p>We apologize for this error.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145887556","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":"Comment on García-Robledo and Alvarado, “Integration of an Invasive Plant in Hummingbird and Flower Mite Networks …” (Biotropica 57: e70050)","authors":"Robert K. Colwell","doi":"10.1111/btp.70140","DOIUrl":"https://doi.org/10.1111/btp.70140","url":null,"abstract":"","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145848290","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":"Habitat Selection and Seed Dispersal by the Great Blue Turaco (Corythaeola cristata) in the Rainforests of Southern Cameroon","authors":"Antoine S. A. Tekam,&nbsp;Nicholas J. Russo,&nbsp;Bonaventure Sonké,&nbsp;Vincent Deblauwe,&nbsp;Docas L. Nshom,&nbsp;Nicolas Barbier,&nbsp;António Ferraz,&nbsp;Sassan Saatchi,&nbsp;Martin Wikelski,&nbsp;Elsa M. Ordway,&nbsp;Thomas B. Smith","doi":"10.1111/btp.70153","DOIUrl":"https://doi.org/10.1111/btp.70153","url":null,"abstract":"<p>Tropical rainforests are biodiversity hotspots, where the seeds of 60%–90% of trees are dispersed by animals, yet movement data needed to understand the behaviors and habitat selection of tropical frugivores remain scarce. We GPS-tracked four great blue turacos (<i>Corythaeola cristata</i>) in the Dja Faunal Reserve of southern Cameroon and predicted spatial patterns of seed dispersal within each bird's home range, which covered up to 2.33 km². Using integrated Step Selection Analyses, we related turaco movements to LiDAR-derived measurements of 3D vegetation structure and habitat type. One individual preferred areas of tall canopy height, whereas one preferred intermediate canopy height and avoided swamps and areas of greater vertical vegetation complexity. Seed dispersal patterns for the two turacos with the largest home ranges were predicted to be more diffuse, with local maxima almost an order of magnitude smaller than those with smaller home ranges. Although the great blue turaco is a common bird species throughout central African forests, this is the first study to characterize the species' movement ecology using telemetry. The observed individual variation in movement and habitat use underscores the need to track a broader range of species in central African landscapes, which are increasingly threatened by hunting, logging, habitat loss, and climate change.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70153","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145848289","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":"Temporal Changes in Land Use Highlight the Vulnerability of Highland Grasslands in Protected Areas in Southern Brazil","authors":"Ricardo Jerozolimski,&nbsp;Mário M. Tagliari,&nbsp;José R. R. Campos","doi":"10.1111/btp.70145","DOIUrl":"https://doi.org/10.1111/btp.70145","url":null,"abstract":"<p>Protected Areas (PAs) are a primary mechanism to mitigate habitat loss, deforestation, and land-use change. In Southern Brazil's Atlantic Forest, agricultural expansion has fragmented the Mixed Ombrophilous Forest and Subtropical Highland Grasslands, ecosystems with limited formal protection. Using the MapBiomas land use and cover time series (1985–2021), we quantitatively assessed changes inside and outside (500, 3000, and 10,000 m buffer zones) three federal PAs established in 2005. Our analysis revealed a contrast in conservation outcomes. Forest formations were effectively conserved within PAs, with losses of only −1.82% and −1.40% over 36 years in <i>Araucárias</i> National Park and <i>Mata Preta</i> Ecological Station, respectively. In contrast, the Subtropical Highland Grasslands ecosystem suffered a −31.08% loss inside the <i>Campos de Palmas</i> Wildlife Refuge, a PA specifically designated for their protection. Notably, this internal grassland loss exceeded a −30.28% loss in the broader 10,000 m buffer zone. Buffer zones consistently exhibited higher conversion rates and did not provide an effective conservation gradient, resembling the wider unprotected landscape. Although the PAs successfully stabilized forest cover post-establishment, they failed to curb the conversion of grasslands to agriculture and silviculture. Our findings demonstrate that PA effectiveness is ecosystem-dependent and underscore the urgent need for targeted conservation strategies, including active management and policy reform, to prevent the collapse of the threatened Subtropical Highland Grasslands.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70145","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145845823","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":"Early Human Settlement in Bornean Forests Occurred Under Distinct Environmental Conditions","authors":"Nathalia Pérez-Cárdenas,&nbsp;Maarten B. Eppinga,&nbsp;Ryan Rabett,&nbsp;Meredith C. Schuman,&nbsp;Maria J. Santos","doi":"10.1111/btp.70146","DOIUrl":"https://doi.org/10.1111/btp.70146","url":null,"abstract":"<p>Humans have inhabited Bornean tropical forests for at least 45,000 years, yet the impact of that long-term presence is poorly understood. Borneo's extensive archaeological record and high biodiversity offer a unique laboratory to examine patterns of site selection and the effects of human activity on tropical forest ecosystems. This paper establishes a synthetic literature-based data set of 73 archaeological sites, 47 with radiocarbon or radiometric records dating during the last 6 ka BP. Palaeoclimate, current climate, soil, and terrain variables of these 47 sites are compared against a set of simulated random locations across Borneo. We also consider spatial proximity as a factor influencing human settlement, clustering sites based on location and examining the timing and duration of habitation of sites within the clusters. Finally, we compare the 47 site records against the HYDE-3.2 land-use model to assess correspondence. Our results suggest that during the last 6000 years BP, Bornean human settlements tended to be located in the forests at lower elevations, near coasts and river networks, in higher temperatures and lower precipitation. Comparative sedimentary analysis also suggests preferential use of locations exhibiting lower clay and higher sand content. This combination of conditions likely improved food production and resource supply. Our study highlights the value of integrating archaeological data with global historical land-use and climate models to uncover long-term human–environment interactions. By establishing a cross-site environmental baseline, these findings provide insights into past human settlement patterns and likely human legacies in Borneo's tropical forests.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145845824","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":"Variation in Food Supply Drives Dietary Shifts of Critically Endangered Hainan Gibbons (Nomascus hainanus) in South China's Tropical Forest","authors":"Kening Lu,&nbsp;Yidong Zhou,&nbsp;Shuai Liu,&nbsp;Dexu Zhang,&nbsp;Wenxing Long,&nbsp;Yuan Chen","doi":"10.1111/btp.70144","DOIUrl":"https://doi.org/10.1111/btp.70144","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding primate behavioral responses to food supply provides critical insights into their adaptive strategies in dynamic environments. The Critically Endangered Hainan gibbon (<i>Nomascus hainanus</i>), a China-endemic species, has recently exhibited range expansion into low-altitude forests. However, the foraging strategy of this species in lower-elevation habitats remains poorly understood. In this study, we examined two Hainan gibbon groups within the National Park of Hainan Tropical Rainforest, representing old-growth and secondary forest habitats, respectively. We assessed plant diversity in their home ranges through plot sampling at 100 m intervals and collected behavioral data via instantaneous scan sampling at 5-min intervals. Our findings revealed low similarity in both overall forest composition and food plant availability between the two habitats. Although the two groups consumed a comparable number of food items, their dietary composition differed significantly. Notably, both groups exhibited a strong negative correlation between feeding preference and plant importance values, indicating that gibbons preferentially forage on non-dominant tree species. These results demonstrate that Hainan gibbons exhibit dietary flexibility in response to spatial variation in food plant supply. Consequently, habitat restoration initiatives should prioritize key food plant availability to ensure sufficient foraging resources for this threatened species.</p>\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145845940","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":"Does the Cave Environment Limit Functional Diversity? Rethinking Patterns in Oniscidea Assemblages From a Neotropical Karst","authors":"Rafaela Bastos-Pereira,&nbsp;Leila A. de Souza,&nbsp;Júlia B. Galo,&nbsp;Rafael C. Cardoso,&nbsp;Rodrigo L. Ferreira","doi":"10.1111/btp.70147","DOIUrl":"https://doi.org/10.1111/btp.70147","url":null,"abstract":"<p>Caves impose restrictive environmental conditions that often promote morphological convergence, especially under permanent darkness. Isopods are successful colonizers of these habitats, yet the processes structuring their biodiversity in hypogean systems remain poorly understood. We tested whether hypogean habitats differ from epigean ones in the standardized effect size of functional richness (SES α) and whether functional dissimilarity is driven by distinct β-components. We assembled a site × species matrix (54 sites) and a species × traits matrix, standardized traits, and estimated n-dimensional probabilistic trait spaces (Gaussian-kernel hypervolumes) using three PCoA axes. Functional α-diversity was measured as hypervolume size, and pairwise β-diversity was partitioned into β_total, β_repl, and β_richl. Null expectations were obtained by randomizing the trait matrix, and SES values were computed for α and β metrics. Communities were classified as epigean (Epi), hypogean with troglobites (Hyp), and hypogean without troglobites (HypWT). SES α ranged from strongly negative to strongly positive, with Epi and HypWT showing slightly higher central tendencies than Hyp, but without significant differences among groups. SES β_repl was significantly lower and SES β_richl significantly higher among groups, indicating reduced functional turnover but amplified richness differences. Trait overdispersion was more frequent in Epi and HypWT sites than in Hyp sites. Taken together, these patterns indicate that isopod communities along the epigean–hypogean gradient are shaped mainly by environmental filtering and an uneven occupation of trait space, rather than simple trait replacement.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750821","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":"Coupling Climate, Landscape, and Demography to Predict the Future of Mainland Tropical Highland Anoles","authors":"Rafael Ángel Moreno-Arias,&nbsp;Miguel Ángel Méndez-Galeano","doi":"10.1111/btp.70141","DOIUrl":"https://doi.org/10.1111/btp.70141","url":null,"abstract":"<div>\u0000 \u0000 <p>In the future, there will be an increased risk of extinction of populations of ectotherms due to climate warming and habitat loss and fragmentation. The anole lizards inhabiting South American highlands are an example of those organisms with particularities in their thermal biology and habitat requirements which make them prone to extinction in the future. Under an integrative approach of species distribution modeling, landscape structure, and demographic response, we describe the potential effects of future changes in climate and habitat on the future persistence of four species of these lizards. Current climatic niches of <i>A. heterodermus</i> and <i>A. richteri</i> were similar to each other but differed from those of <i>A. quimbaya</i> and <i>A. tequendama</i>. Future climatic niche models showed an increase in the area of occurrence of all species except <i>A. heterodermus</i>. Integrating landscape structure with climatic models, only one species maintained an increase in its distribution area. When we incorporated the demographic response associated with habitat size, we found an increase in the area subjected to a demographic strategy less resilient in the future. This approach shows how the modeling of future extinction vulnerability in terms of area of occupancy changes substantially when taking into account more than one additive factor of potential change and, likewise, predicts a considerable extinction vulnerability for higher elevation species and the largest current distribution area.</p>\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750714","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":"Movement Strategies of Neotropical Nectarivorous Birds: Insights From High-Andean Hummingbirds and Flowerpiercers","authors":"Cristina Rueda-Uribe,&nbsp;Pedro A. Camargo-Martínez,&nbsp;Jonathan Espitia,&nbsp;Manuela Lozano-Rocha,&nbsp;Juan Pablo Ríos,&nbsp;María Ángela Echeverry-Galvis,&nbsp;Lesley T. Lancaster,&nbsp;Isabella Capellini,&nbsp;Justin M. J. Travis,&nbsp;Alejandro Rico-Guevara","doi":"10.1111/btp.70132","DOIUrl":"https://doi.org/10.1111/btp.70132","url":null,"abstract":"<p>Tropical nectarivorous birds should have flexible movement behaviors in response to the spatiotemporal availability of flowers. In the Neotropics, hummingbirds (Trochilidae) have diet breadths constrained by trait-matching with flowers, while nectar-robbing flowerpiercers (Thraupidae) typically drink nectar from holes pierced at the flower's base. Distinct movement patterns for these two bird families would be expected from optimal foraging theory due to differences in dietary specialization and behavioral flexibility, yet little is known about the daily movement patterns of tropical nectarivores. We used fine-resolution tracking data from an automated radio telemetry grid to compare movement patterns between hummingbirds and flowerpiercers in high-Andean mountain ecosystems, and obtained an accumulated total of 435,513 location estimates and 452 tracking days from 22 individuals across six bird species. Our results indicate that hummingbirds exhibit a greater diversity of movement behaviors compared to flowerpiercers, with varying space use and recursion patterns that are characteristic of sedentary, commuting/traplining and exploratory strategies, whereas most species of flowerpiercers were classified as central-place foragers. However, there is substantial variation in daily movement metrics and hierarchical clustering does not necessarily group together bird families, species, nor even individuals as more similar to each other. Flexibility in movement behaviors has seldom been described for neotropical nectarivorous birds in the wild. It emerges as an important trait to adjust behavior to variable local contexts, and may be adaptive for the persistence of pollinators in challenging mountain ecosystems, where weather conditions are harsh and floral resources are seasonal.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70132","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750631","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":"A New Method of Fruit Marking for Studies on Chiropterochory","authors":"Juliana Pereira Bezerra,&nbsp;Enrico Bernard","doi":"10.1111/btp.70133","DOIUrl":"https://doi.org/10.1111/btp.70133","url":null,"abstract":"<p>We used edible glitter to mark 15,526 fruits of three chiropterochorous plants at 700, 1000, 2000, and 3200 m from a bat roost in Brazil's caatinga. Glitter from all distances was detected at the roost, allowing the identification of specific feeding areas accessed, providing a new approach for zoochory studies.</p>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145686285","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}