Diversity and Distributions最新文献

{"title":"Historical Demographic Determinants Complement Climate Model Predictions of Co-Occurring Cryptic Species","authors":"Pilar Jurado-Angulo,&nbsp;Mario García-París","doi":"10.1111/ddi.70007","DOIUrl":"https://doi.org/10.1111/ddi.70007","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We explore the impact of demography and biogeographic history on the interpretation of ecological niche model, highlighting the potential for integrating genetic and ecological approaches to elucidate the evolutionary dynamics underlying the geographic distributions of cryptic species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Western Palaearctic (Africa and Europe).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We conducted intensive sampling across the Iberian Peninsula to obtain mtDNA phylogeographic data and to develop fine-scale ecological niche models, projecting these models into both past and future scenarios for the cryptic earwigs <i>Forficula dentata</i> and <i>F. mediterranea</i>. Additionally, we utilised Bayesian skyline plot (BSP) analyses to reconstruct demographic histories and infer past population trends for both species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The phylogeographic patterns revealed divergent evolutionary histories: <i>F. dentata</i> exhibited a well-established, geographically structured lineage, whereas <i>F. mediterranea</i> displayed a star-shaped pattern characteristic of recent expansion. Comparison between current climate models and those projected into the past and future indicate that <i>F. dentata</i> is likely facing a substantial reduction in its suitable habitat due to ongoing climate change, possibly exacerbated by increasing competition with <i>F. mediterranea</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our results suggest that climatic factors alone cannot determine the distribution of cryptic species. Historical and demographic factors play a crucial role in shaping their current geographical structure. In addition, human-mediated dispersal and ongoing climate change may contribute to the genetic and spatial structure within the <i>F. auricularia</i> species complex. Overall, exploring the intricate interplay between historic, genetic and geographic distribution is recommended to overcome contradictory predictions of climate models.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Hunting and Habitat Destruction Drive Widespread Functional Declines of Top Predators in a Global Deforestation Hotspot","authors":"Alfredo Romero-Muñoz,&nbsp;Benjamin Bleyhl,&nbsp;Ana Benítez-López,&nbsp;Micaela Camino,&nbsp;Julieta Decarre,&nbsp;A. Sofía Nanni,&nbsp;Andrew Noss,&nbsp;Anthony J. Giordano,&nbsp;Verónica A. Quiroga,&nbsp;Ricardo Torres,&nbsp;Jeffrey J. Thompson,&nbsp;Laura Villalba,&nbsp;Mauricio M. Nuñez Regueiro,&nbsp;Carlos De Angelo,&nbsp;Tobias Kuemmerle","doi":"10.1111/ddi.70003","DOIUrl":"https://doi.org/10.1111/ddi.70003","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We investigated the effects of habitat destruction and hunting on the functional decline of top predators, specifically jaguar and puma, in the Gran Chaco.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>The 1.1 million km² South American Gran Chaco.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used spatially explicit, individual-based models for jaguars and pumas, incorporating detailed information on habitat suitability and hunting pressure. We parameterized our models with literature data and calibrated them through a Delphi expert-elicitation process. We simulated population trajectories under a hypothetical, threat-free, baseline versus different threat scenarios.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Under combined threats of hunting and habitat loss, jaguar and puma populations declined by 88% and 80%, respectively, compared to range contractions of 48% and 35%, respectively. Both species remained regionally viable, particularly due to large protected areas, which acted as population sources but were surrounded by strong sinks. We observed a widespread weakening of the top carnivore guild function, with at least one species extirpated across 67% of the Chaco and strong declines (&gt; 80%; considered here as functional loss) for both species concurrently across 61% of their area of historical co-occurrence. Hunting was a much stronger driver of population declines (88% and 77% for jaguars and pumas, respectively) compared to habitat destruction (26% and 22%).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Large predators play key functional roles in ecosystems. Our findings reveal that these functions can be lost over vast areas due to the combined effects of habitat destruction and hunting, with functional loss extending far beyond the areas of species' extirpation. Very large protected areas, like Kaa-Iya in Bolivia, are crucial for maintaining viable populations of top predators, highlighting the pressing need for increased protection and connectivity in the Chaco to prevent further trophic downgrading. More generally, our research underscores the value of spatially detailed, mechanistic models for disentangling the complex dynamics of multiple threats on ecological functioning at broad scales.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.70003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Mapping Butterfly Species Richness and Abundance in Mountain Grasslands—Spatial Application of a Biodiversity Indicator","authors":"Friederike Barkmann,&nbsp;Erich Tasser,&nbsp;Ulrike Tappeiner,&nbsp;Peter Huemer,&nbsp;Benjamin Schattanek-Wiesmair,&nbsp;Kurt Lechner,&nbsp;Alois Ortner,&nbsp;Johannes Rüdisser","doi":"10.1111/ddi.70000","DOIUrl":"https://doi.org/10.1111/ddi.70000","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The integration of high-quality field data with high-resolution remote sensing data can give detailed insights into the spatial distribution of biodiversity and provide valuable information for biodiversity conservation at a scale relevant for management action. We developed a framework based on remote sensing data and field surveys for modelling species richness and abundance of butterflies at high spatial resolution to inform about the spatial distribution of butterfly species richness and abundance and analyse their drivers and the scale of effect of landscape factors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Western Austria.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We combined structured butterfly surveys at 175 grassland sites in western Austria with remote sensing variables describing topography, grassland characteristics, and the landscape composition and configuration at different radii around a site. For spatial predictions of butterfly species richness and abundance, generalised linear models with elastic net regularisation were used and compared with stepwise variable selection. To analyse the influence of selected variables and their scale of effect, models with landscape variables in different radii around the sites and variables describing topography were applied.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>For species richness, the Spearman rank correlation between predicted and measured values was 0.62. For abundance, predictive power was lower with a correlation of 0.52. Models with variables from smaller radii (125 and 250 m) generally showed better predictive performance than those at larger radii (500 and 1000 m). We found an effect of elevation, maximum grassland productivity, northness, and forest ecotone density in most models.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Integrating remote sensing data with spatial modelling techniques substantially enhances our ability to understand patterns and identify key drivers of butterfly species richness at high spatial resolution. Our study highlights the positive influence of forest edges, small woody features, and moderate grassland productivity on butterfly species richness and abundance.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.70000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Identifying Spatial Patterns of Egg Nursery Habitat for a Demersal Shark in the Northwestern Mediterranean Sea: Conservation and Management Implications","authors":"Miguel López,&nbsp;Morane Clavel-Henry,&nbsp;Nixon Bahamon,&nbsp;Maria Vigo,&nbsp;Marc Balcells,&nbsp;Antoni Sánchez-Márquez,&nbsp;Joan Navarro,&nbsp;Joan B. Company","doi":"10.1111/ddi.70004","DOIUrl":"https://doi.org/10.1111/ddi.70004","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Oviparous elasmobranchs lay benthic eggs with long incubation periods, many of which also require habitat-forming sessile organisms for their development. However, they are threatened by bottom-trawling fishing impacts. Here, we aimed to identify the suitable habitat distribution of small-spotted catshark (<i>Scyliorhinus canicula</i>) egg nursery areas, assess their current protection extent by an existing no-take MPA network and their coverage by other delimited spatial-based conservation areas.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Balearic Sea, northwestern Mediterranean.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Egg cases were collected over 5 years (2018–2022) by a bottom-trawling monitoring programme along the eastern coast of the Iberian Peninsula. We used these occurrences and various environmental variables (bathymetry, slope, sea bottom temperature, sea bottom dissolved oxygen and seabed type) to model the habitat suitability of egg nurseries for the species using maximum entropy modelling.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Sea bottom temperature was the most important variable explaining habitat suitability of egg nurseries. Small-spotted catshark eggs were found either attached to or in the same samples as various species of habitat-forming sessile organisms. We found only 3.6% (381 km²) of the modelled suitable egg nursery habitat in the Balearic Sea to be currently covered by an implemented no-take MPA network. At the same time, 52% of said MPAs are inadvertently protecting suitable egg nursery habitats (and their associated benthic community), as they were not initially planned with elasmobranchs as conservation targets. Important shark and ray areas (ISRA-IUCN) were also observed to cover egg nursery habitat (4502 km² or 15.52%) within their boundaries.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>While half of the current MPA surface is providing protection to this elasmobranch species' egg nursery areas and their associated benthic communities, they are not sufficient for their conservation. However, mapping the distributions of these essential fish habitats can help towards the 2030 European conservation target of ‘strictly protecting’ 10% of marine environments.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"The Distribution of Wild Bee Species Along a Latitudinal Gradient in Northern Europe Depends on Their Flower Preferences","authors":"Marianne S. Torvanger,&nbsp;Yoko L. Dupont,&nbsp;Jens M. Olesen,&nbsp;Claus Rasmussen,&nbsp;Henning B. Madsen,&nbsp;Bastiaan Star,&nbsp;Markus A. K. Sydenham","doi":"10.1111/ddi.70001","DOIUrl":"https://doi.org/10.1111/ddi.70001","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The functional diversity of bees contribute to the maintenance of plant biodiversity because different species of wild bees prefer and pollinate different plants. Many bees, in particular species with narrow flower preferences or specialised habitat requirements, are threatened by landscape homogenisation and climate change. Nonetheless, we still lack an understanding of large-scale impacts of anthropogenic stressors on the distribution of wild bee species with different flower preferences.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Northern Europe: Norway, Denmark and Germany.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We combine a dataset comprising ~30,000 observations of presences or absences of bee occurrences from structured surveys at 269 sites in northern Europe to investigate if flower preferences modulate species distributions across multiple environmental gradients. Bees were assigned a continuous functional trait separating preference for short vs. tubular flowers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We observe that bee flower preference for either tubular flowers (Fabaceae) or plants with shallow flowers (including Apiaceae and Brassicaceae) can be described by a continuous flower preference trait score. The likelihood of observing a bee along a latitudinal gradient—encompassing variation in temperature, atmospheric N deposition and elevation—is dependent on its flower preference trait score. Specifically, bees with preferences for tubular flowers have a higher likelihood of occurrence with higher latitudes, while bees with preference for non-tubular flowers increase towards the south.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our results improve our understanding of how species-specific variation in flower preferences drives community-wide shifts in diversity and can therefore help devise region-specific conservation strategies.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.70001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Cover page","authors":"","doi":"10.1111/ddi.13881","DOIUrl":"https://doi.org/10.1111/ddi.13881","url":null,"abstract":"<p>The cover image relates to the Research Article https://doi.org/10.1111/ddi.13912 “A race against extinction: The challenge to overcome the Linnean amphibian shortfall in tropical biodiversity hotspots” by Carné et al. A Malagasy treefrog from the genus <i>Boophis</i> (<i>B. aff. madagascariensis</i>) recorded in Marojejy National Park, Northern Madagascar. Image Credit: Albert Carné.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13881","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Distance From the Road, Habitat Type and Environmental Factors Predict Distribution of Invasive and Native Plant Species in the Above-Ground Vegetation and Soil Seedbanks","authors":"Wanting Dai,&nbsp;Ayub M. O. Oduor,&nbsp;Chaodan Guo,&nbsp;Zhanjun Quan,&nbsp;Junsheng Li,&nbsp;Caiyun Zhao","doi":"10.1111/ddi.70002","DOIUrl":"https://doi.org/10.1111/ddi.70002","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Road networks are common landscape disturbances that can facilitate the spread of invasive plants. This study explored the influence of distance from the road, habitat type and broader environmental factors in shaping the distribution patterns of both invasive and native species in the above-ground vegetation and soil seed banks.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Guangxi, China.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We collected data on plant species composition from both soil seed banks and above-ground vegetation at six distances from the road edge: 0 m, 2 m, 4 m, 9 m, 14 m and 24 m in three habitat types, including abandoned land, <i>Eucalyptus</i> plantations and natural secondary forests. We collected data on environmental variables at each sampling location. We examined the compositional similarity of plant communities by non-metric multidimensional scaling (NMDS) and identified the influence factors by redundancy analysis (RDA).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Our results indicated that invasive species richness decreased with distance from the road, especially in natural secondary forests. Conversely, native species did not show consistent distribution patterns relative to distance from roads across the various habitats. The composition of invasive plant communities was similar in both soil seed banks and above-ground vegetation, while only 13.33% of native species identified in the soil were observed in the above-ground vegetation. Road characteristics, human disturbance and soil properties correlated with the distribution of invasive and native species, with the strength of these correlations varying among habitat types. The richness and density of native plants were associated with the presence of invasive alien plants at various distances from the road across the three types of habitats.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>The study highlights that proximity to the road, habitat type and environmental factors are critical in determining the distribution of plant species within nature reserves. Moreover, it underscores the importance of integrating both above-ground and seed bank perspectives for effective management strategies to control invasive species and promote native plant communities.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.70002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Distinct Functioning of Low- Versus High-Altitude Refugia in the Mediterranean: Inferences From Life-History Traits of Two Related Relict Trees From the Islands of Sicily and Crete","authors":"Giuseppe Garfì,&nbsp;Laurence Fazan,&nbsp;Alessandro Silvestre Gristina,&nbsp;Salvatore Pasta,&nbsp;Antonio Motisi,&nbsp;Dany Ghosn,&nbsp;Ilektra Remoundou,&nbsp;Gregor Kozlowski","doi":"10.1111/ddi.13961","DOIUrl":"https://doi.org/10.1111/ddi.13961","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Relict trees are the outcome of long-term ‘natural experiments’. Accordingly, they provide opportunities to study the effects of local adaptation of trees, which are still poorly understood but crucial in the context of climate change. In turn, the physical settings of refugia at macro- and microscale are the key drivers of the environmental adaptability of such species. Using two congeneric climate relict trees (<i>Zelkova sicula</i> and <i>Z. abelicea</i>) as model species, we analysed the functional relationships between tree growth patterns and the distinctive environmental drivers of low- versus high-altitude refugia in the Mediterranean.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Mediterranean islands of Sicily (Italy) and Crete (Greece).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>To evaluate the growth potential of the two relict trees we used top height and multi-year data of shoot length over the entire distribution range of both species. Growth form and height growth dynamics of <i>Z. sicula</i> were also investigated by stem analysis. Moreover, tree-ring response to climate was compared through classical dendrochronological approaches.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Tree size, as well as shoot and radial growth are notably greater in <i>Z. abelicea</i>, suggesting this species better fits in its habitat and the higher-elevation Cretan refugia are less constraining than their low-elevation Sicilian counterparts. Tree-ring growth response to precipitation and evapotranspiration is rather similar between the two species and points to the key role of moisture balance on growth. However, the 1-month delay in the response from the Sicilian to the Cretan relict mirrors the differential role of altitude against micro-topography in decoupling from the regional climate.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>The significant attenuation of environmental constraints due to the ‘elevation effect’ is a major offsetting driver for the distinct functioning of low- versus high-altitude refugia in the Mediterranean, but macroclimatic patterns may locally blur the effectiveness of refugia in a long-term conservation perspective.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13961","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Potential Landscapes for Conservation of the Black-Tailed Prairie Dog Ecosystem","authors":"Ana D. Davidson,&nbsp;Fernanda Thiesen Brum,&nbsp;Michael Houts,&nbsp;Michael Menefee,&nbsp;Matt Williamson,&nbsp;Lindsey Sterling Krank,&nbsp;Bill Van Pelt,&nbsp;David J. Augustine","doi":"10.1111/ddi.13945","DOIUrl":"https://doi.org/10.1111/ddi.13945","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>To identify potential landscapes for the conservation of the black-tailed prairie dog (<i>Cynomys ludovicianus</i>; BTPD) ecosystem, across their historical geographical range within the United States.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Central Grasslands of the United States.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used a structured decision analysis approach to identify landscapes with high conservation potential (HCP) for the BTPD ecosystem. Our analysis incorporated ecological, political and social factors, along with changing climate and land use to maximise long-term conservation potential.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The landscapes we identified with HCP (top 30% rangewide) represented 22% of the historical distribution of BTPDs and remained strongholds under projected climate change. We provide a suite of HCP area scenarios to help inform different conservation and management interests, including those that consider projected climate change and jurisdictional (state-level) boundaries.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our findings highlight the large conservation potential for BTPDs and associated species, and the maps we generated can be incorporated into other large-scale, multispecies conservation planning efforts being developed for the Central Grasslands of North America.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13945","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Global Conservation Prioritisation Approach Provides Credible Results at a Regional Scale","authors":"Michael Roswell,&nbsp;Anahí Espíndola","doi":"10.1111/ddi.13969","DOIUrl":"https://doi.org/10.1111/ddi.13969","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Conservationists and managers must direct resources and enact measures to protect species, despite uncertainty about their present status. One approach to covering the data gap is borrowing information from data-rich species or populations to guide decisions about data-poor ones via machine learning. Recent efforts demonstrated proof-of-concept at the global scale, leaving unclear whether similar approaches are feasible at the local and regional scales at which conservation actions most typically occur. To address this gap, we tested a global-scale predictive approach at a regional scale, using two groups of taxa.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;State of Maryland, USA.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Taxa&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Vascular land plants and lepidopterans.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Using publicly available occurrence and biogeographic data, we trained random forest classifiers to predict the state-level conservation status of species in each of the two focal taxa. We assessed model performance with cross-validation, and explored trends in the predictions.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Our models had strong discriminatory ability, accurately predicting status for species with existing status assessments. They predict that the northwestern part of Maryland, USA, which overlaps the Appalachian Mountains, harbours a higher concentration of unassessed, but likely threatened plants and lepidopterans. Our predictions track known biogeographic patterns, and unassessed species predicted as most likely threatened in Maryland were often recognised as also needing conservation in nearby jurisdictions, providing external validation to our results.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We demonstrate that a modelling approach developed for global analysis can be downscaled and credible when applied at a regional scale that is smaller than typical species ranges. We identified select unassessed plant and lepidopteran species, and the western, montane region of Maryland as priority targets for additional monitoring, assessment and conservation. By rapidly aggregating disparate data and integrating information across taxa, models like those we used can complement traditional assessment tools and assist in prioritisation for formal assessments, as well as protection.&lt;/p&gt;\u0000 ","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"31 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13969","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}