Global Ecology and Conservation最新文献

{"title":"Spatial and temporal variations in habitat quality across the distribution range of the critically endangered East African Chelonian, pancake tortoise (Malacochersus tornieri)","authors":"Nassoro Mohamed ,&nbsp;Rudolf Mremi ,&nbsp;Chuan Jiang ,&nbsp;David J. Kavana ,&nbsp;Reginald T. Mwaya ,&nbsp;Bo Li","doi":"10.1016/j.gecco.2025.e03773","DOIUrl":"10.1016/j.gecco.2025.e03773","url":null,"abstract":"<div><div>Habitat degradation poses a significant threat to biodiversity worldwide. Effective conservation of species hinges on our ability to quantify changes in habitat quality over time and assess how species are likely to respond to such changes. In this study, we aim to employ the InVEST habitat quality model to evaluate the temporal and spatial change in habitat quality of East Africa’s endemic and critically endangered pancake tortoise (<em>Malacochersus tornieri</em>). Using a 22-year (2000–2022) integrated multi-temporal land-use data, we quantified key threats to pancake tortoise habitat by parameterizing threat sensitivity and intensity. We found that built-up areas expanded by 83 %, grassland and cropland increased by 17 %, whereas forest/woodland declined by 17 %. Additionally, the amount of high-quality habitat decreased from 55 % of the area in 2000 to 52 % in 2022, whereas the area of low-quality habitat increased from 24 % to 28 % during the same period. Pancake tortoise habitats occurring outside protected areas showed lower habitat quality and higher degradation compared to those within protected areas. If the ongoing trend of habitat fragmentation and degradation remains unaddressed, it is likely to continue threatening pancake tortoise populations. Following the mounting pressures on pancake tortoise habitat, a coordinated national and regional (including the pancake habitat range countries: Kenya, Tanzania, and Zambia) plan for conservation of pancake tortoise, especially outside protected areas is therefore critical.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03773"},"PeriodicalIF":3.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Determinants of hair cortisol concentration in female wild boar suggest a potential biomarker of overabundance","authors":"Rita Santos ,&nbsp;Eduardo Lutondo ,&nbsp;Nuno Pinto ,&nbsp;Guilherme Ares-Pereira ,&nbsp;Rita Tinoco Torres ,&nbsp;Nuno Santos","doi":"10.1016/j.gecco.2025.e03771","DOIUrl":"10.1016/j.gecco.2025.e03771","url":null,"abstract":"<div><div>Wild boar (<em>Sus scrofa</em>), a widely distributed and expanding large mammal, is considered locally overabundant in Europe. Since assessing the overabundance of wildlife is challenging, we hypothesised that hair cortisol concentration (HCC), an often-used indicator of allostatic load, could be a biomarker of overabundance. This study aimed to characterise HCC in hunted female wild boars (n = 133) in diverse environmental and management contexts across Portugal and assess its relation with: 1) wild ungulate densities, 2) trophic resources, 3) threats and refuges, 4) edaphoclimatic variables, and 5) intrinsic factors. HCC was measured using a commercial competitive enzyme-linked immunosorbent assay, and the results were analysed using generalised linear mixed models. The mean HCC of female wild boar was 6.22 ± 4.1 pg/mg guard hair. Significant positive determinants of HCC included the: 1) density of sympatric cervids (quadratic); 2) Normalised Difference Vegetation Index; 3) hunting pressure; 4) evapotranspiration; and 5) juveniles and sub-adults. This study highlights the influence of ecological and anthropogenic determinants on the allostatic load of female wild boars. Hair cortisol concentration could be a biomarker of overabundance integrating the effects of inter-specific competition with cervids and the intensity of hunting pressure. Further research is needed to clarify the factors driving the annual variability of HCC in female wild boar in overabundance contexts.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03771"},"PeriodicalIF":3.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Ecological and human use traits shape lemur-tree interaction networks across human-modified landscapes","authors":"Camille M.M. DeSisto ,&nbsp;Roméo Bezaralahy ,&nbsp;Candidier Dimbiarijaonina ,&nbsp;Razara Emerancine ,&nbsp;Telesy Feno ,&nbsp;Edouard Mahazandry ,&nbsp;Jeantauné Njakandrina ,&nbsp;Charles L. Nunn ,&nbsp;Edgar Rabevao ,&nbsp;Mamy Omega Raharizafinirina ,&nbsp;Sidonie Olivia Rakotoarisoa ,&nbsp;William Ramalanjaona ,&nbsp;Dominique Randrianasolo ,&nbsp;Jean Randrianasy ,&nbsp;Manadina Rasolofo ,&nbsp;George Raveloson ,&nbsp;Marie Rolande Soazafy ,&nbsp;Jean Tiamanana ,&nbsp;Eric Tsilanizara ,&nbsp;Zico Zandry ,&nbsp;James P. Herrera","doi":"10.1016/j.gecco.2025.e03729","DOIUrl":"10.1016/j.gecco.2025.e03729","url":null,"abstract":"<div><div>Functional traits drive species interactions that structure ecological communities around the world. Both ecological and human-use traits may be associated with the structure of ecological networks in human-modified systems. In secondary and primary forests in northeast Madagascar, we quantified the importance of lemur species and the tree genera they consume using network measures of centrality, determined the ecological trait predictors of tree centrality, and investigated the relationships between tree centrality and human use. Our study advances understanding of ecological interactions by: combining ethnobiological data with direct observations to reduce undersampling of cryptic interactions; using a bipartite network approach to understand the connections between land use types; investigating frugivory, seed predation, and herbivory interactions; and accounting for phylogenetic signal in tree centrality. Diurnal lemurs tended to be more central to primary forests, whereas nocturnal lemurs were more central to secondary forests. Tree centrality in primary forest networks was negatively associated with tree diameter, wood density, and endemism status. Network structure was related to human use traits in the secondary forest but not in primary forest; trees central to secondary forest networks were more likely to be used by people, especially in herbivory networks. Our results highlight the importance of combining research-based observations with ethnobiological data to advance our understanding of the trait-based functioning of ecological networks. Conservation approaches should be attentive to the implications of ecological interactions for both ecological functioning and human well-being.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03729"},"PeriodicalIF":3.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"African lion conservation requires adaption to regional anthropogenic threats and mitigation capacity","authors":"Samantha K. Nicholson ,&nbsp;Lizanne Roxburgh ,&nbsp;Hans Bauer ,&nbsp;Erin Adams ,&nbsp;Tsyon Asfaw ,&nbsp;Vincent N. Naude ,&nbsp;Rob Slotow","doi":"10.1016/j.gecco.2025.e03760","DOIUrl":"10.1016/j.gecco.2025.e03760","url":null,"abstract":"<div><div>Lion populations are declining rapidly throughout their range in Africa due to either indirect threats such as habitat loss and fragmentation or more direct threats such as targeted poaching for body parts and illegal wildlife trade. Conservation strategies and resource deployment around mitigation requires a comparable understanding of regional threat typology and severity, as well as an assessment of available resources for intervention. To inform such species-level planning, an online survey conducted with experienced landscape managers and lion researchers representing 132 subpopulations across Africa was used to develop standardised perceived threat severity and resource availability indices for comparison with biogeographic, socio-economic, and mitigation covariates. Lion subpopulations were perceived to be either increasing (38 %) or stable (37 %) over the last five years, with some decreasing (17 %) and several unknown (8 %) trends. Perceived threat severity differed significantly by region (i.e., highest in central and lowest in southern Africa) and country (i.e., highest in Angola, the Democratic Republic of Congo, Cameroon and Ethiopia, while Rwanda, South Africa and Namibia were lowest). Further significant differences in the total threat index were related to variables such as communities living within the lion habitat, livestock grazing within the area, livestock competition with wildlife, as well as the level of fencing, community engagement and management resources. Angola, the Democratic Republic of Congo, Cameroon and Ethiopia had the highest perceived threat severity indices, while Rwanda, South Africa and Namibia had the lowest threat severity. The most severe threats varied significantly across regions and countries. Lack of funding, human encroachment, and loss of prey base emerged as severe local threats, while climate change was identified as the most severe global threat. Perceived resource availability was highest in Rwanda, Chad and Benin and lowest in six countries including Angola, Burkina Faso, Niger, South Sudan, Sudan and Uganda. The perceived threats facing lion conservation in Africa vary with context, highlighting the need for tailored conservation strategies.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03760"},"PeriodicalIF":3.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Water temperature drives the segregation between common and Atlantic spotted dolphins in Azorean waters","authors":"Maria Inês Pinheiro da Silva,&nbsp;Marta Tobeña,&nbsp;Miguel Machete,&nbsp;Mónica A. Silva,&nbsp;Sergi Pérez-Jorge","doi":"10.1016/j.gecco.2025.e03769","DOIUrl":"10.1016/j.gecco.2025.e03769","url":null,"abstract":"<div><div>The coexistence of sympatric species, which share similar ecological requirements and compete for resources in the same area, requires mechanisms to reduce interspecific competition. In the Azores, common dolphins (<em>Delphinus delphis</em>) and Atlantic spotted dolphins (<em>Stenella frontalis</em>) exhibit a strong seasonal pattern, with common dolphins’ presence decreasing in summer while Atlantic spotted dolphins’ presence increases. This study analyzed a long-term sightings dataset (May-September 2001–2015) using multiple species distribution models to gain a deeper understanding of their segregation mechanisms by examining their distribution and habitat overlap. Sea surface temperature (SST) was the most important driver of the distribution of both species, with a marked threshold around 21ºC. Below this temperature, common dolphins were the dominant species having a widespread distribution, while Atlantic spotted dolphins were nearly absent. Above this threshold, the presence of common dolphins decreased sharply, and Atlantic spotted dolphins dominated. Additionally, the intra-monthly distribution of both species and their spatial overlap were primarily affected by monthly SST anomalies and their proximity to the identified threshold. These findings indicate a temperature-based temporal segregation between common and Atlantic spotted dolphins. Investigating their ecological segregation provides valuable insights into how sympatric species coexist in shared habitats and reduce their interspecific competition. Moreover, understanding this mechanism is crucial for predicting how climate change may reshape their future distribution and to define effective management plans and conservation strategies for these species.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03769"},"PeriodicalIF":3.4,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Drivers of spatial and temporal patterns of non-timber forest product extraction in Southern India","authors":"Sikha Hariharan ,&nbsp;Yogita Karpate ,&nbsp;Karen A. Kainer ,&nbsp;Krithi K. Karanth ,&nbsp;Divya Vasudev","doi":"10.1016/j.gecco.2025.e03768","DOIUrl":"10.1016/j.gecco.2025.e03768","url":null,"abstract":"<div><div>Non-timber forest products (NTFPs) support the livelihoods of 2.77 billion people in the Global South. However, their extraction can have a significant impact on forest ecosystems. To formulate policy and regulatory practices that serve both human livelihood needs and biodiversity conservation goals, we need to understand people’s engagement in NTFP extraction. We identified drivers of NTFP extraction among people living across eight forested landscapes in southwestern India. We conducted semi-structured interviews with 641 households and categorized them along a latent scale of increased self-reported engagement in extraction, coded ‘0’ to ‘3’: 0–households not involved in NTFP extraction (38.68 %); 1–those gathering only fuelwood and leaf litter (8.73 %); 2–those extracting NTFPs solely for domestic use (24.80 %); and 3–those extracting at least one species for commercial purposes (27.76 %). Using an ordinal regression, we found that tribal households, those relying on daily wages and agriculture, and those residing in the same location for &gt; 50 years, have a higher propensity to extract NTFPs. We found differences across geography and states that were not explained by household-level drivers. A majority of respondents perceived a reduction in extraction over the last decade, which they attributed to restricted access to forests, lower resource yield, and alternative livelihood opportunities. We highlight the utility of including, but distinguishing, domestic NTFP extraction from commercial practices in conservation planning. Our findings, complemented by sustainability assessments, can inform context-specific policies that recognize the role of forest products in rural livelihoods, guiding extraction of forest resources in a sustainable manner to support forest-dependent livelihoods while achieving conservation goals.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03768"},"PeriodicalIF":3.5,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Differential responses of ground-nesting bees (Leioproctus paahaumaa and Lasioglossum spp.) to horticultural intensity and landscape factors","authors":"Felicia Kueh-Tai ,&nbsp;Ashley N. Mortensen ,&nbsp;Jacqueline R. Beggs ,&nbsp;David E. Pattemore","doi":"10.1016/j.gecco.2025.e03767","DOIUrl":"10.1016/j.gecco.2025.e03767","url":null,"abstract":"<div><div>Habitat loss and increased pesticide use associated with intensified agriculture contribute to declines in wild bees. The vast majority of bee species worldwide are living below ground, yet their responses to agricultural practices are poorly understood. We surveyed New Zealand native ground-nesting bees (<em>Lasioglossum sordidum</em>, <em>Lasioglossum cognatum</em> and <em>Leioproctus paahaumaa</em>) in eight avocado orchards across a gradient of horticultural intensity. We examined how bee abundance related to pesticide use, land cover, soil hardness, and slope. Total bee abundance was negatively associated with slope, and positively associated with horticultural intensity and soil hardness. <em>Lasioglossum sordidum</em> were more abundant in high intensity horticultural areas, but declined with higher pesticide use. In contrast, although <em>L. paahaumaa</em> abundance was highest in low intensity horticultural areas, their abundance was predicted best by models that only included slope and soil hardness. No significant predictors were identified for <em>L. cognatum</em>. These species-specific responses to landscape factors and farm management practices highlight the challenge of identifying agricultural practices that will support ground-nesting bees. Nevertheless, reducing pesticide use will promote at least <em>L. sordidum</em> populations and therefore facilitate the adoption of sustainable farming methods to enhance ecosystem health.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03767"},"PeriodicalIF":3.4,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Drivers of wild bee abundance and diversity in social-ecological landscapes","authors":"Mario V. Balzan ,&nbsp;Leticia De Santis ,&nbsp;Ahlam Sentil ,&nbsp;Denis Michez","doi":"10.1016/j.gecco.2025.e03765","DOIUrl":"10.1016/j.gecco.2025.e03765","url":null,"abstract":"<div><div>Concern over pollinator loss has driven conservation efforts globally, yet significant gaps remain in understanding the combined effects of local and landscape factors on pollinator communities, and their status and trends in social-ecological landscapes. Using four years of data, covering 204 sites, from a national monitoring dataset on plant-wild bee interactions in the Maltese Islands, this study examines the links between local and landscape habitat factors, wild bee abundance, species richness, and functional diversity. Functional diversity was assessed using multiple traits to calculate functional divergence, richness, evenness, and dispersion. Both local and landscape factors influenced wild bee communities. At the local scale, plant species richness was positively associated with wild bee abundance, species richness, and functional divergence and dispersion. Agricultural habitats supported higher abundance, and functional richness and dispersion of wild bees than other habitats. Honeybee abundance negatively impacted functional richness and dispersion, particularly in road verge and steppe habitats. At the landscape scale, urban areas and the Shannon Landscape Diversity Index negatively affected wild bee species richness and functional diversity. A combined negative impact of the urban heat island effect and honeybee hive density on wild bee functional diversity was observed across scales, suggesting that urban-driven fragmentation favours generalist, social species with greater foraging ranges. Effective wild bee conservation requires actions across scales, focusing on maintaining plant species richness and preserving agricultural habitats, while promoting land use planning that reduces further expansion of urban development into predominantly agricultural landscapes and integrating wild bee habitats within urban areas to mitigate fragmentation effects.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03765"},"PeriodicalIF":3.5,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Conservation strategies for Northern River Terrapin Batagur baska: Habitat assessment and reintroduction prospects","authors":"Raveendran Amirtha Balan ,&nbsp;Anukul Nath ,&nbsp;Arif Ahmad ,&nbsp;Abhijit Das","doi":"10.1016/j.gecco.2025.e03763","DOIUrl":"10.1016/j.gecco.2025.e03763","url":null,"abstract":"<div><div>The long-term survival of critically endangered species depends on a blend of in-situ and ex-situ conservation efforts. We studied the Northern River Terrapin (<em>Batagur baska</em>) in the Sundarban Tiger Reserve (STR), India, to assess the potential for future reintroduction by identifying suitable habitats. We carried out intensive field survey, followed by questionnaire to assess the current status of the species. Subsequently, we assess the previously known nesting beaches of <em>B. baska</em> for future reintroduction . No direct evidence of <em>B.baska</em> was found during our boat and beach survey. However, questionnaire surveys reported sightings of the species from Kendo and Chaimari Islands. Our species distribution model (SDM) indicates that only about 5 % of suitable habitat lies within designated protected areas (PAs) in India, Bangladesh, and Myanmar. Mangrove cover was identified as the most critical factor influencing <em>B. baska</em> occurrence. In India, the most suitable habitats are in West Bengal, followed by parts of Odisha. Few nesting beaches within STR show potential, but threats from human disturbance, free ranging dogs, and wild boars may limit their suitability. Reducing these pressures is essential to improve nesting success. The ongoing captive breeding program in STR, which houses around 400 individuals, offers a significant opportunity for species recovery. We recommend focusing future reintroduction efforts at historical nesting sites such as Chaimari, Garanghati, Bagmara in STR, and the Bhitarkanika Conservation Area in Odisha. To ensure success, sustained beach monitoring, community engagement, reduction of anthropogenic activities, and comprehensive reintroduction plans are critical to preventing the extinction of <em>B. baska</em> in the region.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03763"},"PeriodicalIF":3.5,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Ecological and historical drivers of palm distributions in the Atlantic Forest","authors":"Júlia Angeli ,&nbsp;Daniela Custódio Talora ,&nbsp;Neander Marcel Heming ,&nbsp;Eliana Cazetta","doi":"10.1016/j.gecco.2025.e03766","DOIUrl":"10.1016/j.gecco.2025.e03766","url":null,"abstract":"<div><div>The geographic range size of species is shaped by several environmental and biological factors, with functional traits playing a critical role by influencing long-distance dispersal. In plants, traits related to fruit and stem size can affect range size, as larger fruits and taller stems enhance dispersal capacity. In this study, we focus on Arecaceae (palms), which plays a key role in forest structure. This study evaluates the current potential distribution of palm species in the Atlantic Forest, identifying regions with the highest species richness and the functional traits linked to species' range size. We first compiled data on functional traits—stem height, stem diameter, fruit length, fruit width, and habitat—for 63 palm species. We then integrated environmental variables with known species occurrences to estimate climatically suitable areas using ecological niche models. Finally, we performed phylogenetic generalized least squares regression to examine the relationship between functional traits and geographical range size. Our results reveal significant variation in range size among species, with some exhibiting highly restricted potential distributions, while others occupy vast areas of the biome. Species richness is highest along the northeastern coast and parts of the southeastern region of Brazil. Palms with taller stems and larger fruits tend to occupy broader geographic ranges. These findings highlight regions of exceptional palm richness, emphasize species with restricted distributions, and underscore the importance of functional traits in shaping species distributions. They also provide crucial insights for biodiversity conservation in one of the world’s most threatened tropical forests.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03766"},"PeriodicalIF":3.5,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}