Frontiers of Biogeography最新文献

{"title":"Megatsunami deposits and range expansion of cold-temperate marine species towards the tropics in glacial times","authors":"Sérgio P. Ávila, Raphaël Paris, Ricardo S. Ramalho, Carlos S. Melo, Esther Martín‐González, Emílio Rolán, Patrícia Madeira, Gonçalo C. Ávila, João Porteiro, António Medeiros, Filipa Naughton, Fatima F Abrantes, Gustavo M. Martins, Markes E. Johnson, José Madeira","doi":"10.21425/fob.18.138319","DOIUrl":"https://doi.org/10.21425/fob.18.138319","url":null,"abstract":"Over geological time, glacial-interglacial cycles affected the geographical range of marine species. Typically, this has been documented by tracking the long-distance dispersal of tropical, shallow-water mollusc species in archipelagos during the last phase of glacial terminations or the early phase of an interglacial episode. Many studies conducted in the Macaronesian archipelagos (i.e., the Azores, Madeira, Selvagens, Canaries and Cabo Verde) support this view. To date, however, such studies exclude data from full glacial periods, owing to difficulties in accessing the geological record of lower sea-level glacial episodes. Here we demonstrate, for the first time, the range expansion into the tropics of cold-water/temperate species during two glacial episodes (MIS 4 and MIS 6), using the Macaronesian region as a case study. For that, we innovate by using megatsunami deposits to unveil biogeographic processes and patterns noticed in the conglomerates of Tarrafal (Santiago Island, Cabo Verde) and of Teno Bajo (Tenerife, Canary Islands), which are interpreted to have been emplaced by megatsunamis triggered by volcanic flank collapses occurred at ~68 ka (MIS 4) and ~170 ka (MIS 6), respectively. Our results detect that not only latitudinal, long-distance dispersal of marine molluscs occurred toward the tropics (mainly between archipelagos, and between European and African shores towards the Macaronesian archipelagos), but also longitudinal range expansion. Moreover, both MIS 4 and MIS 6 megatsunami deposits yielded a high biodiversity (expressed both by species richness and diversity indices) when compared with raised beach sediments. This new finding must be added to the distinctive sedimentological and textural characteristics of tsunami deposits. Finally, we demonstrate that four mollusc species reported from the Teno glacial MIS 6 tsunami deposits, and several temperate and sub-tropical bivalve and gastropod species reported from the Tarrafal glacial MIS 4 tsunami deposits spread to the Canaries and Cabo Verde, respectively, establishing viable populations in those archipelagos. Thus, these species provide evidence of geographical range expansion of marine species from mid-latitudes to low latitudes by means of long-distance, equatorward dispersal of benthic, shallow-, cold-water/temperate marine molluscs between archipelagos and from continental shores to oceanic islands during glacial periods. Megatsunami deposits are used to unveil biogeographic patterns and processes in the Macaronesian archipelagos. Megatsunami deposits record the geographical range expansion of cold-water/temperate species towards the tropics during glacial times. Our data demonstrates both latitudinal and longitudinal range shifts of marine molluscs, by means of long-distance dispersal. Both MIS 4 and MIS 6 megatsunami deposits analysed yielded a high biodiversity when compared with MIS 5e raised beach sediments. A high biodiversity (expressed both by species richness and","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://biogeography.pensoft.net/article/138319/download/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147886700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of archipelago geo-environmental dynamics on phylogenetic tree shape","authors":"Amandine Vidal-Hosteng, Christophe Thébaud, Rampal S. Etienne, Robin Aguilée","doi":"10.21425/fob.18.146650","DOIUrl":"https://doi.org/10.21425/fob.18.146650","url":null,"abstract":"In archipelagic environments, the successive emergence and submergence of islands induces changes in area, spatial structure and isolation. Here, we aim to understand how such geo-environmental dynamics, by altering immigration, speciation and extinction over time, may influence phylogenetic patterns. We use a neutral, stochastic, individual-based model which simulates a community evolving in an archipelago where four islands emerge and submerge consecutively. We record each birth, death and immigration event, allowing us to build the complete phylogeny at any time, from which we extract the phylogeny of extant species. We show that the rate of lineage accumulation and tree imbalance vary according to a hump-shaped curve, and we show that this is mainly due to variations in area and inter-island connectivity. We highlight that past abrupt changes, such as island emergence, may leave persistent imprints in the rate of lineage accumulation. We show that the spatial configuration of an archipelago modulates these effects: (i) enhancing inter-island connectivity leads to more frequent inter-island speciation events, resulting in a faster accumulation of lineages, and in larger evolutionary radiations, which in turn produce highly imbalanced phylogenies; (ii) increase in mainland connectivity brings ancestral lineages to the islands, which slows down the rate of lineage accumulation and increases the species turnover, allowing for more balanced phylogenies. Accounting for variations in the geo-environmental configuration of an archipelago is important to understand the shape of contemporary phylogenies. However, these effects have to be interpreted in the context of the spatial configuration of an archipelago. The emergence and submergence of islands in an archipelago influences immigration, speciation and extinction rates at both island and archipelago scales Landscape dynamics in an archipelago drives insular species diversification rates and influences phylogenies of island species Inter-island dispersal favors lineage accumulation and generates imbalanced phylogenies Mainland connectivity increases species turnover, slows down lineage accumulation and makes phylogenies more balanced The establishment and size of a phylogenetic island clade may depend on the spatial configuration of the archipelago at the time of colonization","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://biogeography.pensoft.net/article/146650/download/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147908592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mapping the status of global taxonomic knowledge of Orthoptera (Arthropoda, Insecta)","authors":"RODRIGO ANTÔNIO CASTRO-SOUZA, Juliana Stropp, Luiz Felipe Moretti Iniesta, Richard J. Ladle, Neucir Szinwelski, Geiziane Tessarolo, José Alexandre Felizola Diniz‐Filho, Thadeu Sobral‐Souza, Joaquín Hortal","doi":"10.21425/fob.18.145455","DOIUrl":"https://doi.org/10.21425/fob.18.145455","url":null,"abstract":"The status of taxonomic knowledge varies across the Globe. Quantifying and mapping the geographic patterns of taxonomic status is essential to prioritise regions that require greater attention from the taxonomic community. Here, we compiled all valid orthopteran species names and their synonyms, extracted from the Catalogue of Life (CoL) and allocated them geographically, based on data from the Global Biodiversity Information Facility (GBIF) and the Orthoptera Species File (OSF). This allowed us to create measures of taxonomic effort, based on the date of species descriptions and the number of associated synonyms and combine them across space. Our analyses show that the descriptions of currently valid species increased exponentially since the 19 th century, with a temporary decline following World War II, while synonyms outpaced the number of valid species until the 1980s. The number of taxonomists also increased over time, with declines after World Wars, followed by a significant rise from the 1950s onwards, continuing through the 21 st century (with > 100 taxonomists currently active). Per-taxonomist description rates transitioned from highly variable before the 20 th century to consistent rates of 5–10 species annually with collaborative efforts. Tropical regions and the Southern Hemisphere hold the majority of recently described species names with fewer associated synonyms, indicating a predominance of alpha taxonomy and highlighting the need for greater taxonomic efforts. In contrast, temperate regions, particularly in Europe and south-western Asia, contain the majority of older names and synonyms, indicating a predominance of beta taxonomy and regions that have been more thoroughly studied. Our findings are discussed in the context of sociopolitical factors, scientific investments and the history of taxonomy. Finally, we propose a framework that makes the links between taxonomy and macroecology accessible for biodiversity in the era of Big Data. Alpha taxonomy (i.e. the description of new species) and Beta taxonomy (i.e. the revision of the taxonomic status and relationships of already described taxa) vary across space and time. We present a framework that connects taxonomy and macroecology, allowing us to assess taxonomic trends to provide information for biodiversity studies in the era of Big Data. We mapped alpha taxonomy rates using the date of species descriptions across space and beta taxonomy rates using the number of synonyms associated with each species. We combined alpha and beta taxonomy rates to understand the global taxonomic status of Orthoptera (Arthropoda, Insecta), the sixth most species-rich insect order, which includes grasshoppers, crickets, katydids and relatives. In tropical regions, orthopteran taxonomy is recent and has few revisions, while in temperate regions, it is older and more consolidated.","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://biogeography.pensoft.net/article/145455/download/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147913336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Niche dynamics modulate population connectivity between disjunct ranges of the Cape Robin-chat (Cossypha caffra) supporting an aridlands species pump","authors":"Guinevere O. U. Wogan, Gary Voelker, Tanya Jain, Potiphar Kaliba, R. Bowie","doi":"10.21425/fob.17.132679","DOIUrl":"https://doi.org/10.21425/fob.17.132679","url":null,"abstract":"Southern Africa boasts an extraordinary diversity of birds, posited to have at least in part been driven by a “species pump” model, facilitated by an intermittent arid corridor connecting it with northeast Africa. This arid corridor arose and disappeared in concert with Plio-Pleistocene climate fluctuations, providing a means for northern, primarily arid-adapted lineages, to disperse to and subsequently colonize Southern Africa. Here, we test this “species pump” at the intra-specific level. We focus on Cape Robin-chats (Cossypha caffra) which have disjunct resident populations in the forested mountains of East Africa and in the aridlands of Southern Africa. We use multi-locus data to estimate gene flow between these populations, model spatial connectivity across this region contemporaneously and over the past 120 thousand years, and test niche differentiation. We found evidence for highly asymmetric gene flow (north to south) among Cape Robin-chat populations, and niche differentiation coupled with an inferred niche-based environmental filter limiting gene flow from southern to northern populations. Habitat suitability supports the presence of an intermittent corridor stretching from the Horn of Africa to Southern Africa. We propose that a modified species pump incorporating niche divergence and subsequent dispersal limitation driven by environmental filters has contributed to population differentiation among northern and southern populations of Cape Robin-chats, and that this same mechanism over time may have contributed to the rich avifaunal diversity of Southern Africa.\u0000 Southern Africa has rich avifauna with high endemicity driven in part by in situ speciation.\u0000 Using a combination of genetic analyses, niche models, and dispersal models, we find support for an intermittent aridlands corridor between disjunct populations of Cape Robin-chats modulated by Plio-Pleistocene climatic oscillations.\u0000 This study shows niche divergence and asymmetric gene flow between southern and northern populations, providing a mechanism for population divergence.\u0000 This supports the existence of an aridlands species pump that drives population divergence and may have contributed to species diversification in the Southern Africa avifauna.","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"47 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141922729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover","authors":"Frontiers of Biogeography Editorial Office","doi":"10.21425/f5fbg63770","DOIUrl":"https://doi.org/10.21425/f5fbg63770","url":null,"abstract":"","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"104 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover","authors":"Frontiers of Biogeography Editorial Office","doi":"10.21425/f5fbg63250","DOIUrl":"https://doi.org/10.21425/f5fbg63250","url":null,"abstract":"","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"104 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140079889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Macroecological correlates of richness, body size, and species range size in terrestrial vertebrates across the world","authors":"Q. Guo, Hong Qian, Pengcheng Liu, Jian Zhang","doi":"10.21425/f5fbg61729","DOIUrl":"https://doi.org/10.21425/f5fbg61729","url":null,"abstract":"Species richness, body size, and range size are among key subjects in animal macroecology and biogeography. To date, the species richness–body size–range size nexus remains largely understudied at a global scale and for large taxonomic groups. Here we examine the relative role of species richness and body size in determining species range size among terrestrial vertebrates across spatial and taxonomic scales. We then test related hypotheses in the context of Rapoport’s rule, latitude, and climate variation. To do this, we used simultaneous autoregressive analysis and structural equation modeling to test for statistical relationships among species richness, body size, and range size for all terrestrial vertebrates and for each continent. We then investigated the relative contributions of richness, body size, latitude, climate variation, and their combinations in the variations in species range sizes. We found that species richness consistently shows strong negative correlations with range size at global, regional, and within-region levels, and for all terrestrial vertebrates, and for each of the four classes (i.e., birds, mammals, amphibians, and reptiles). The strength of the relationships increased with richness and with spatial and taxonomic scales. Globally, species richness explained more variation in species range size than did latitude and climates. Body size contributed significantly to the range sizes of all four classes but especially reptiles and amphibians. However, the relative contributions of these factors varied substantially among the continents and terrestrial vertebrate classes. Comparison with the findings of a previous study shows that there were also significant differences in regional patterns between terrestrial vertebrates and plants and the relative contributions of diversity vs. latitude. Our findings show clear relationships among species richness, body size, and range size, but the strength of the relationships varies among regions and taxonomic groups. In general, species richness could predict species range size better than body size, latitude, and climate. These results have important theoretical and applied implications.","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"41 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140527154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantifying local-scale changes in Amazonian forest cover using phytoliths","authors":"N. H. Witteveen, A. Blaus, M. Raczka, Christina Herrick, Mike Palace, M. N. Nascimento, Emiel E. Van Loon, William D. Gosing, Mark B. Bush, C. McMichael","doi":"10.21425/f5fbg62254","DOIUrl":"https://doi.org/10.21425/f5fbg62254","url":null,"abstract":"","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"49 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140519202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flying snails: immigrant selection and the taxon cycle in Pacific Island land snails","authors":"Teresa Rose Osborne, Mark V. Lomolino, R. J. Rundell","doi":"10.21425/f5fbg62005","DOIUrl":"https://doi.org/10.21425/f5fbg62005","url":null,"abstract":"","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"15 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139631643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can you trust comparative trait data based on singleton species?","authors":"Jan Beck, C. McCain, Gunnar Brehm","doi":"10.21425/f5fbg62354","DOIUrl":"https://doi.org/10.21425/f5fbg62354","url":null,"abstract":"","PeriodicalId":37788,"journal":{"name":"Frontiers of Biogeography","volume":"200 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140521465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}