Diversity and Distributions最新文献

{"title":"The genetic consequences of population marginality: A case study in maritime pine","authors":"Adélaïde Theraroz, Carlos Guadaño-Peyrot, Juliette Archambeau, Sara Pinosio, Francesca Bagnoli, Andrea Piotti, Camilla Avanzi, Giovanni G. Vendramin, Ricardo Alía, Delphine Grivet, Marjana Westergren, Santiago C. González-Martínez","doi":"10.1111/ddi.13910","DOIUrl":"10.1111/ddi.13910","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Marginal tree populations, either those located at the edges of the species' range or in suboptimal environments, are often a valuable genetic resource for biological conservation. However, there is a lack of knowledge about the genetic consequences of population marginality, estimated across entire species' ranges. Our study addresses this gap by providing information about several genetic indicators and their variability in marginal and core populations identified using quantitative marginality indices.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Southwestern Europe and North Africa.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using 10,185 SNPs across 82 populations of maritime pine (<i>Pinus pinaster</i> Ait.), a widespread conifer characterised by a fragmented range, we modelled the relationship of seven genetic indicators potentially related to population evolutionary resilience, namely genetic diversity (based on both all SNPs and outlier SNPs), inbreeding, genetic differentiation, recessive genetic load and genomic offset, with population geographical, demo-historical and ecological marginality (as estimated by nine quantitative indices). Models were constructed for both regional (introducing gene pool as a random factor) and range-wide spatial scales.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We showed a trend towards decreasing overall genetic diversity and increasing differentiation with geographic marginality, supporting the centre-periphery hypothesis (CPH). However, we found no correlation between population inbreeding and marginality, while geographically marginal populations had a lower recessive genetic load (only models without the gene pool effect). Ecologically marginal populations had a higher genomic offset, suggesting higher maladaptation to future climate, albeit some of these populations also had high genetic diversity for climate outliers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Overall genetic diversity (but not outlier-based estimates) and differentiation patterns support the CPH. Ecologically marginal populations and those at the southern edge could be more vulnerable to climate change due to higher climate maladaptation, as predicted by genomic offsets, and/or lower potentially adaptive genetic diversity. This risk is exacerbated by typically small effective population sizes and increasing human impact in marginal populations.</p>\u0000 </section>\u0000 ","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 10","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13910","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969690","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":"Vertebrate taxonomic and functional hotspots in the Brazilian Atlantic Forest","authors":"Fillipe Pedroso-Santos,&nbsp;Renato Richard Hilário,&nbsp;Bruna da Silva Xavier,&nbsp;Ana M. C. Santos,&nbsp;Karen Mustin,&nbsp;William Douglas Carvalho","doi":"10.1111/ddi.13908","DOIUrl":"10.1111/ddi.13908","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We aim to find the main drivers of the taxonomic and functional richness and functional dispersion of vertebrates (amphibians, birds, primates, marsupials, rodents, bats and medium- and large-sized mammals) across the Brazilian Atlantic Forest. We also aim to identify hotspots of vertebrate diversity and quantify the extent to which they are legally protected.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Brazilian Atlantic Forest.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We gathered data on the occurrence of vertebrates based on the most recent published databases for Atlantic Forest vertebrates and measured taxonomic richness, functional richness and functional dispersion. We then related variation in diversity, within each group and overall, to environmental and landscape variables. Also, we modelled the diversity of each group for the entire extent of the Atlantic Forest, superimposing the diversity maps to delimit the vertebrate biodiversity hotspots and verified how much of these hotspots are covered by protected areas.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Taxonomic/functional diversity were driven by environmental (e.g., average annual precipitation and precipitation of the driest quarter) and landscape variables (e.g., amount of forest and agricultural areas) for most taxonomic groups. The main hotspots of taxonomic richness are located in the central region of the Atlantic Forest, whereas those for functional diversity occur in the southern region of the biome. Only a little over 10% of the Atlantic Forest is covered by protected areas, and, as such, the vast majority of the medium and high diversity areas fall outside of protected areas, being therefore not legally protected.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>We found evidence for previously described patterns, including the predicted positive effects of the amount of forest in the landscape and precipitation and the negative effects of agricultural areas on vertebrate diversity. Finally, our results show that most diversity hotspots are outside of legally protected areas, indicating that more conservation efforts should be made towards safeguarding these important areas.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13908","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772899","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":"Predictor importance in habitat suitability models for invasive terrestrial plants","authors":"Demetra A. Williams,&nbsp;Keana S. Shadwell,&nbsp;Ian S. Pearse,&nbsp;Janet S. Prevéy,&nbsp;Peder Engelstad,&nbsp;Grace C. Henderson,&nbsp;Catherine S. Jarnevich","doi":"10.1111/ddi.13906","DOIUrl":"10.1111/ddi.13906","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Due to the socioeconomic and environmental damages caused by invasive species, predicting the distribution of invasive plants is fundamental for effectively targeting management efforts. A habitat suitability model (HSM) is a powerful tool to predict potential habitat of invasive species to help guide the early detection of invasive plants. Despite numerous studies of the predictors used in HSMs, there is little consensus about the most appropriate predictors to use in creating ecologically realistic predictions from HSMs.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>The contiguous United States.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We explore 220 invasive terrestrial plant species' existing HSMs constructed with consistent modelling algorithms, background generation methods, predictor resolution, and geographic extent, and calculate the relative importance of predictors for each species. We sort predictors into eight groups (topography, temperature, disturbance, atmospheric water, landscape water, substrate, biotic interaction, and radiation) and compare the importance of predictor groups by plant lifeforms and phylogenetic relatedness.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Human modification and minimum winter temperature were generally the two highest performing individual predictors across the species studied. The highest-performing predictor groups were disturbance, temperature, and atmospheric water. Across lifeforms, there were minimal differences in the influences of predictor groups, although woody plant models exhibited the largest differences in predictor importance when compared with non-woody plant models. Additionally, we found no significant relationship between the importance of predictor groups and phylogenetic relatedness.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>This study has implications for informing predictor selection in invasive plant HSMs, leading to more reliable and accurate models of invasive terrestrial plants. Our results emphasize the need to critically select predictors included in HSMs, with special consideration to temperature and disturbance predictors, to accurately predict habitat of invasive plant for detection and response of invasive plant species. With more accurate predictions, managers will be better prepared to address invasive species and reduce their threats to landscapes.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13906","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772862","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":"Correlations among genetic, epigenetic, and phenotypic variation of Phragmites australis along latitudes","authors":"Yu-Han Chen,&nbsp;Jian-Qiao Meng,&nbsp;Chun-Lin Wang,&nbsp;Tao Fang,&nbsp;Zi-Xuan Jia,&nbsp;Fang-Li Luo","doi":"10.1111/ddi.13907","DOIUrl":"10.1111/ddi.13907","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Estuarine vegetation routinely experiences natural tidal fluctuations and is highly vulnerable to extreme events such as heavy rainfall, leading to changes in plant population structure and adaptability. Genetic and epigenetic modifications are widely considered to be mechanisms of phenotypic variation, triggered in plants responding to extreme changing environments. However, understanding on correlations among genetic, epigenetic, and phenotypic variation of wild plant populations is still limited.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>China.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>In this study, populations of the typical wetland clonal species <i>Phragmites australis</i> were selected from four estuaries along various latitudes in China. Genetic and epigenetic diversity and phenotypic variation of these populations were analysed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Phenotypic variation of <i>P. australis</i> populations was the highest at Yellow River Estuary and the lowest at Min River Estuary. Across all estuaries, Genetic and epigenetic diversity was strongly linear-correlated. Genetic diversity had significant correlations with variation in reproductive traits, whereas epigenetic diversity had significant correlations with variation in growth traits. Climatic factors of mean annual temperature and precipitation, as well as soil nitrogen and phosphorus, were negatively correlated with variation in genetic diversity, epigenetic diversity, and variation in reproductive traits of <i>P. australis</i> populations along latitudes. Variation in growth traits was negatively correlated with soil salinity, reflecting the limiting effect of salinity on plant growth.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>Our findings found that genetic and epigenetic variations may play different roles in phenotypic variation of <i>P. australis</i> populations along latitudes, the variation becomes greater when the climatic and edaphic conditions deteriorate. The findings shed new light on the adaptation and evolution of wetland plant populations along a large latitudinal scale, and may contribute to the revegetation of estuary wetlands.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13907","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141744402","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.13739","DOIUrl":"https://doi.org/10.1111/ddi.13739","url":null,"abstract":"<p>The cover image relates to the Research Article https://doi.org/10.1111/ddi.13863 “Data coverage, biases, and trends in a global citizen-science\u0000resource for monitoring avian diversity” by La Sorte et al. The Northern Cardinal, <i>Cardinalis cardinalis</i>, a common North American bird species.\u0000Credit: Jeremy Cohen.\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":"30 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13739","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141631118","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":"Climatic fluctuations, geographic features, and evolutionary forces: Shaping high genomic diversity and local adaptation in Muntiacus reevesi","authors":"Guotao Chen,&nbsp;Zhonglou Sun,&nbsp;Wenbo Shi,&nbsp;Hui Wang,&nbsp;Guohui Shi,&nbsp;Yibo Hu,&nbsp;Huizhong Fan,&nbsp;Qi Wu,&nbsp;Baowei Zhang","doi":"10.1111/ddi.13904","DOIUrl":"10.1111/ddi.13904","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;Genetic diversity is crucial for species adaptability. Understanding the mechanisms behind its formation and maintenance is essential for effective conservation. Recent studies have demonstrated that despite experiencing severe population bottlenecks, &lt;i&gt;Muntiacus reevesi&lt;/i&gt; retains high genetic diversity and continues its northward migration, indicative of ongoing adaptive evolution. However, our comprehension of this phenomenon remains incomplete. The objective of this study is to explore the mechanisms underlying the formation of high genetic diversity and the genomic characteristics associated with local adaptation, using &lt;i&gt;M. reevesi&lt;/i&gt; as a case study.&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;Southern China.&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;We analysed resequencing data from 62 genomes and identified 29,124,081 high-quality single-nucleotide polymorphisms (SNPs). We used population genetics, demographic history, population differentiation, gene flow analysis software, and genotype-environment association (GEA) models to assess the factors that have contributed to high genetic diversity and environmental adaptability in the historical climate and geographical context.&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;The study identified that during Pleistocene climatic fluctuations, &lt;i&gt;M. reevesi&lt;/i&gt; diverged into eastern (DB and WJW populations) and western lineages (WL, BA, and QL populations), all displayed high genetic diversity. Historically, &lt;i&gt;M. reevesi&lt;/i&gt; maintained large effective populations, but contemporary human-induced threats have led to a significant decline. Population differentiation models suggest distinct expansion pathways for eastern and western lineages, resulting in population admixture, with mountain corridors facilitating gene flow and maintaining high genetic diversity. Additionally, environmental-genotype analysis revealed local adaptation in the QL-BA population, highlighting candidate adaptive genes (&lt;i&gt;ME3&lt;/i&gt; and &lt;i&gt;PRKG1&lt;/i&gt;) potentially linked to cold adaptation and foraging behaviour.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusion&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;This study enhances our understanding of the mechanisms behind the high genetic diversity and environmental adaptability of &lt;i&gt;M. reevesi&lt;/i&gt;, offering insights into how bottleneck populations maintain diversity, crucial for biogeographic research and conservation strategies for similar species.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 ","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13904","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141644439","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":"Contrasting patterns of spatial genetic structure in endangered southern damselfly (Coenagrion mercuriale) populations facing habitat fragmentation and urbanisation","authors":"Agathe Lévêque,&nbsp;Anne Duputié,&nbsp;Vincent Vignon,&nbsp;Fabien Duez,&nbsp;Cécile Godé,&nbsp;Cédric Vanappelghem,&nbsp;Jean-François Arnaud","doi":"10.1111/ddi.13902","DOIUrl":"10.1111/ddi.13902","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;Human-induced environmental changes result in habitat loss and fragmentation, impacting wildlife population genetic structure and evolution. Urbanised and geographically peripheral areas often represent unfavourable environments, reducing connectivity among populations and causing higher population genetic differentiation and lower intra-population genetic diversity. We examined how geographic peripherality and anthropogenic pressures affect genetic diversity and genetic differentiation in the protected southern damselfly (&lt;i&gt;Coenagrion mercuriale&lt;/i&gt;, Odonata), which has low dispersal capabilities and specific habitat requirements and whose populations are declining.&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;We studied two areas: one in semi-natural habitats at the periphery of the species geographic range (northern France) and the other more central to the species' range, in an urbanised area surrounding the city of Strasbourg (Alsace, eastern France).&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;We genotyped 2743 individuals from 128 populations using 11 microsatellite loci. We analysed the spatial distribution of neutral genetic diversity (allelic richness, heterozygosity, levels of inbreeding and genetic relatedness), the extent of genetic differentiation and population affiliations (sPCAs) within the two areas. We also examined fine-scale patterns of gene flow in the urbanised area of Alsace by investigating patterns of isolation by distance and estimating effective migration surfaces (EEMS) method.&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;Northern peripheral populations showed lower levels of genetic diversity and higher levels of genetic differentiation than central Alsacian populations. Although located in anthropised habitats, geographically central Alsacian populations showed high levels of gene flow, with dispersal events mainly occurring overland and not restricted to watercourses. However, the highly urbanised city of Strasbourg negatively impacted nearby populations by reducing levels of genetic diversity and increasing population genetic differentiation.&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;These results showed the need for management action by restoring breeding sites and creating migratory corridors for peripheral southern damselfly populations. However, our results also highlighted the resilience of southern damselfly in central range populations facing strong urbanisa","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 10","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13902","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141614028","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":"Structure and diversity patterns of coralligenous cliffs across three ecoregions in the Central-Western Mediterranean Sea","authors":"Edoardo Casoli,&nbsp;Stefano Moro,&nbsp;Matteo Falasca,&nbsp;Monica Montefalcone,&nbsp;Lucia Rizzo,&nbsp;Núria Teixidó,&nbsp;Luigi Piazzi,&nbsp;Caterina Longo,&nbsp;Maria Mercurio,&nbsp;Paola Gennaro,&nbsp;Enrico Cecchi,&nbsp;Marina Penna,&nbsp;Maria Cristina Gambi,&nbsp;Alice Mirasole,&nbsp;Enric Ballesteros,&nbsp;Marco Andrello,&nbsp;Daniele Ventura,&nbsp;Gianluca Mancini,&nbsp;Andrea Belluscio,&nbsp;Simonetta Fraschetti,&nbsp;Giandomenico Ardizzone,&nbsp;Giovanna Jona-Lasinio","doi":"10.1111/ddi.13833","DOIUrl":"10.1111/ddi.13833","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;Coralligenous reefs are the main marine bioconstructions in terms of spatial distribution within the Mediterranean basin. Two distinct reef morphologies can be distinguished based on the surface and topographical features of the seafloor: cliffs developing vertical slopes and banks found on gently steep or horizontal bottoms. Despite their importance for monitoring and conservation efforts, observations regarding the variability of biogeographical patterns are scarce. Here, we aimed to assess the differences in the composition and structure of these cliffs across ecoregions and estimate the relative role of abiotic environmental features, geographic location, and connectivity in shaping diversity patterns.&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;The study was carried out in the Central-Western Mediterranean Sea. Samples were collected at 65 sites across the Algero-Provençal Basin, the Ionian Sea and the Tyrrhenian Sea.&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;We assessed the composition and structure of coralligenous cliffs through photographic samplings collected by scuba divers. Patterns in α- and β-diversity were associated with 9 abiotic environmental variables, latitudinal and longitudinal gradients, and connectivity measures using Generalized Additive (GAM) and Conditional Autoregressive (CAR) models.&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;Coralligenous cliffs were primarily composed of algae and displayed a high degree of variability. The Partition Around Medoids (PAM) clustering method successfully delineated seven distinct clusters with a non-uniform distribution within the studied ecoregions. The α-diversity increased in eastern and northern sites and with phosphate concentration, while decreased with temperature, chlorophyll and nitrates concentration. β-diversity at the site level increased with temperature, while it was negatively affected by northward current speed and chlorophyll concentration. Moveover, β-diversity increased within connected sites.&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;Coralligenous cliff diversity responds both to the physico-chemical features of the habitat and between-habitats connectivity. However, our findings suggest that small-scale abiotic and biotic processes could contribute to explaining the variability observed. These findings can significantly enhance the monitoring and conservation efforts of this Mediterranean endemic ecosystem.&lt;/p&gt;\u0000","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13833","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141614804","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":"Biogeographic patterns of Pacific white-sided dolphins based on long-term passive acoustic records","authors":"Michaela N. Alksne,&nbsp;Annebelle C. M. Kok,&nbsp;Anika Agarwal,&nbsp;Kaitlin E. Frasier,&nbsp;Simone Baumann-Pickering","doi":"10.1111/ddi.13903","DOIUrl":"10.1111/ddi.13903","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This study investigates the biogeographic patterns of Pacific white-sided dolphins (<i>Lagenorhynchus obliquidens</i>) in the Eastern North Pacific based on long-term passive acoustic records. We aim to elucidate the ecological and behavioural significance of distinct echolocation click types and their implications for population delineation, geographic distribution, environmental adaptation and management.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Eastern North Pacific Ocean.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>2005–2021.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa Studied</h3>\u0000 \u0000 <p>Pacific white-sided dolphin.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Over 50 cumulative years of passive acoustic monitoring (PAM) data from 14 locations were analyzed using a deep neural network to classify two distinct Pacific white-sided dolphin echolocation click types. The study assessed spatial, diel, seasonal and interannual patterns of the two click types, correlating them with major environmental drivers such as the El Niño Southern Oscillation and the North Pacific Gyre Oscillation, and modeling long-term spatial-seasonal patterns.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Distinct spatial, diel and seasonal patterns were observed for each click type. Significant biogeographical shifts in presence were observed following the 2014–2016 marine heatwave event.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Distinct spatial distributions of the two click types support the hypothesis that Pacific white-sided dolphins produce population-specific echolocation clicks. Seasonal and diel patterns suggest spatiotemporal niche partitioning between the populations in Southern California. Interannual changes, notably initiated during the 2014–2016 marine heatwave, indicate climate-driven range expansions and contractions related to gradual tropicalization of the Southern California Bight.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13903","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141576907","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":"Climate disturbances during critical periods pose risks to European hamster conservation efforts","authors":"Rafał Łopucki,&nbsp;Janusz Wójciak,&nbsp;Daniel Klich","doi":"10.1111/ddi.13899","DOIUrl":"10.1111/ddi.13899","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Long-term population studies provide invaluable insights into natural variability, particularly in ecology and conservation. We reconstruct the 31-year dynamics of the European hamster population in a vast area within Central Europe. We identify key meteorological factors influencing population dynamics and project the potential impact of climate change on their conservation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Poland.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>As an indicator of hamster population changes, we utilized data on the prey of the Lesser Spotted Eagle (<i>Clanga pomarina</i>) collected over 31 years (1993–2023) in the geographical region where the European hamster coexists. The reliability of ornithological data was validated.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Meteorological factors play a critical role in driving hamster population changes. We found a strong correlation between population growth and warm weather patterns in October and November, as well as favourable conditions in March of the following year. These weather patterns allow hamsters to store larger food supplies and enter hibernation in better physiological condition, resulting in improved habitat and nutritional conditions upon emergence from hibernation in spring.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our findings underscore the importance of considering meteorological factors in conservation risk assessments, especially when planning and evaluating hamster reintroduction programmes. The significant influence of meteorological conditions raises concerns about the future prospects of this species in the context of ongoing climate change. Disturbances during critical hamster periods, including unseasonal and prolonged temperature drops in spring following relatively warm winters, pose substantial risks to conservation efforts.</p>\u0000 </section>\u0000 </div>","PeriodicalId":51018,"journal":{"name":"Diversity and Distributions","volume":"30 9","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13899","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141553005","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}