Browsing by Author "Sayol, Ferran"
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- AVONET : morphological, ecological and geographical data for all birdsPublication . Tobias, Joseph A.; Sheard, Catherine; Pigot, Alex L.; Devenish, Adam J. M.; Yang, Jingyi; Sayol, Ferran; Neate‐Clegg, Montague H. C.; Alioravainen, Nico; Weeks, Thomas L.; Barber, Robert A.; Walkden, Patrick A.; Cooper, Jacob C.; Pauwels, Olivier S. G.; Analuddin, Kangkuso; Fjeldså, Jon; Seddon, Nathalie; Sweet, Paul R.; DeClerck, Fabrice A. J.; Naka, Luciano N.; Brawn, Jeffrey D.; Aleixo, Alexandre; MacGregor, Hannah E. A.; Böhning‐Gaese, Katrin; Rahbek, Carsten; Fritz, Susanne A.; Thomas, Gavin H.; Schleuning, Matthias; Jones, Samuel E. I.; Vincent, Claire; Phillips, Anna G.; Marples, Nicola M.; Montaño‐Centellas, Flavia A.; Leandro‐Silva, Victor; Claramunt, Santiago; Darski, Bianca; Freeman, Benjamin G.; Bregman, Tom P.; Cooney, Christopher R.; Hughes, Emma C.; Capp, Elliot J. R.; Varley, Zoë K.; Friedman, Nicholas R.; Korntheuer, Heiko; Corrales‐Vargas, Andrea; Trisos, Christopher H.; Weeks, Brian C.; Hanz, Dagmar M.; Töpfer, Till; Bravo, Gustavo A.; Remeš, Vladimír; Nowak, Larissa; Carneiro, Lincoln S.; Moncada R., Amilkar J.; Matysioková, Beata; Baldassarre, Daniel T.; Martínez‐Salinas, Alejandra; Wolfe, Jared D.; Chapman, Philip M.; Daly, Benjamin G.; Sorensen, Marjorie C.; Neu, Alexander; Ford, Michael A.; Mayhew, Rebekah J.; Fabio Silveira, Luis; Kelly, David J.; Annorbah, Nathaniel N. D.; Pollock, Henry S.; Grabowska‐Zhang, Ada M.; McEntee, Jay P.; Carlos T. Gonzalez, Juan; Meneses, Camila G.; Muñoz, Marcia C.; Powell, Luke L.; Jamie, Gabriel A.; Matthews, Thomas J.; Johnson, Oscar; Brito, Guilherme R. R.; Zyskowski, Kristof; Crates, Ross; Harvey, Michael G.; Jurado Zevallos, Maura; Hosner, Peter A.; Bradfer‐Lawrence, Tom; Maley, James M.; Stiles, F. Gary; Lima, Hevana S.; Provost, Kaiya L.; Chibesa, Moses; Mashao, Mmatjie; Howard, Jeffrey T.; Mlamba, Edson; Chua, Marcus A. H.; Li, Bicheng; Gómez, M. Isabel; García, Natalia C.; Päckert, Martin; Fuchs, Jérôme; Ali, Jarome R.; Derryberry, Elizabeth P.; Carlson, Monica L.; Urriza, Rolly C.; Brzeski, Kristin E.; Prawiradilaga, Dewi M.; Rayner, Matt J.; Miller, Eliot T.; Bowie, Rauri C. K.; Lafontaine, René‐Marie; Scofield, R. Paul; Lou, Yingqiang; Somarathna, Lankani; Lepage, Denis; Illif, Marshall; Neuschulz, Eike Lena; Templin, Mathias; Dehling, D. MatthiasFunctional traits offer a rich quantitative framework for developing and testing theories in evolutionary biology, ecology and ecosystem science. However, the potential of functional traits to drive theoretical advances and refine models of global change can only be fully realised when species-level information is complete. Here we present the AVONET dataset containing comprehensive functional trait data for all birds, including six ecological variables, 11 continuous morphological traits, and information on range size and location. Raw morphological measurements are presented from 90,020 individuals of 11,009 extant bird species sampled from 181 countries. These data are also summarised as species averages in three taxonomic formats, allowing integration with a global phylogeny, geographical range maps, IUCN Red List data and the eBird citizen science database. The AVONET dataset provides the most detailed picture of continuous trait variation for any major radiation of organisms, offering a global template for testing hypotheses and exploring the evolutionary origins, structure and functioning of biodiversity.
- AVOTREX: A Global Dataset of Extinct Birds and Their TraitsPublication . Sayol, Ferran; Wayman, Joseph P.; Dufour, Paul; Martin, Thomas E.; Hume, Julian P.; Jørgensen, Maria Wagner; Martínez‐Rubio, Natàlia; Sanglas, Ariadna; Soares, Filipa C.; Cooke, Rob; Mendenhall, Chase D.; Margolis, Jay R.; Illera, Juan Carlos; Lemoine, Rhys; Benavides, Eva; Lapiedra, Oriol; Triantis, Kostas A.; Pigot, Alex L.; Tobias, Joseph A.; Faurby, Søren; Matthews, Thomas J.Motivation Human activities have been reshaping the natural world for tens of thousands of years, leading to the extinction of hundreds of bird species. Past research has provided evidence of extinction selectivity towards certain groups of species, but trait information is lacking for the majority of clades, especially for prehistoric extinctions identified only through subfossil remains. This incomplete knowledge potentially obscures the structure of natural communities, undermining our ability to infer changes in biodiversity across space and time, including trends in functional and phylogenetic diversity. Biases in currently available trait data also limit our ability to identify drivers and processes of extinction. Here we present AVOTREX, an open-access database of species traits for all birds known to have gone extinct in the last 130,000 years. This database provides detailed morphological information for 610 extinct species, along with a pipeline to build phylogenetic trees that include these extinct species. Main Types of Variables Contained For each extinct bird species, we provide information on the taxonomy, geographic location, and period of extinction. We also present data on island endemicity, flight ability, and body mass, as well as standard measurements of external (matching the AVONET database of extant birds) and skeletal morphology from museum specimens where available. To ensure comprehensive morphological data coverage, we estimate all missing morphological measurements using a data imputation technique based on machine learning. Finally, we provide an R package to graft all extinct species onto a global phylogeny of extant species (BirdTree).
- A global analysis of avian island diversity–area relationships in the AnthropocenePublication . Matthews, Thomas J.; Wayman, Joseph P.; Whittaker, Robert J.; Cardoso, Pedro; Hume, Julian P.; Sayol, Ferran; Proios, Konstantinos; Martin, Thomas E.; Baiser, Benjamin; Borges, Paulo A. V.; Kubota, Yasuhiro; dos Anjos, Luiz; Tobias, Joseph; Soares, Filipa C.; Si, Xingfeng; Ding, Ping; Mendenhall, Chase D.; Sin, Yong Chee Keita; Rheindt, Frank E.; Triantis, Kostas; Guilhaumon, François; Watson, David M.; Brotons, Lluís; Battisti, Corrado; Chu, Osanna; Rigal, FrançoisResearch on island species–area relationships (ISAR) has expanded to incorporate functional (IFDAR) and phylogenetic (IPDAR) diversity. However, relative to the ISAR, we know little about IFDARs and IPDARs, and lack synthetic global analyses of variation in form of these three categories of island diversity–area relationship (IDAR). Here, we undertake the first comparative evaluation of IDARs at the global scale using 51 avian archipelagic data sets representing true and habitat islands. Using null models, we explore how richness-corrected functional and phylogenetic diversity scale with island area. We also provide the largest global assessment of the impacts of species introductions and extinctions on the IDAR. Results show that increasing richness with area is the primary driver of the (non-richness corrected) IPDAR and IFDAR for many data sets. However, for several archipelagos, richness-corrected functional and phylogenetic diversity changes linearly with island area, suggesting that the dominant community assembly processes shift along the island area gradient. We also find that archipelagos with the steepest ISARs exhibit the biggest differences in slope between IDARs, indicating increased functional and phylogenetic redundancy on larger islands in these archipelagos. In several cases introduced species seem to have ‘re-calibrated’ the IDARs such that they resemble the historic period prior to recent extinctions.
- Threatened and extinct island endemic birds of the world: Distribution, threats and functional diversityPublication . Matthews, Thomas J.; Wayman, Joseph P.; Cardoso, Pedro; Sayol, Ferran; Hume, Julian P.; Ulrich, Werner; Tobias, Joseph A.; Soares, Filipa C.; Thébaud, Christophe; Martin, Thomas E.; Triantis, Kostas A.AIM: The world's islands support disproportionate levels of endemic avian biodiversity despite suffering numerous extinctions. While intensive recent research has focused on island bird conservation or extinction, few global syntheses have considered these factors together from the perspective of morphological trait diversity. Here, we provide a global summary of the status and ecology of extant and extinct island birds, the threats they face and the implications of species loss for island functional diversity. LOCATION: Global. TAXON: Birds. METHODS: We provide a review of the literature on threatened and extinct island birds, with a particular focus on global studies that have incorporated functional diversity. Alongside this, we analyse IUCN Red List data in relation to distribution, threats and taxonomy. Using null models and functional hypervolumes, in combination with morphological trait data, we assess the functional diversity represented by threatened and extinct island endemic birds. RESULTS AND MAIN CONCLUSIONS: We find that almost half of all island endemic birds extant in 1500 CE are currently either extinct or threatened with extinction, with the majority of threatened extant species having declining population trends. We also found evidence of 66 island endemic subspecies extinctions. The primary threats to extant island endemic birds currently are agriculture, biological resource use, and invasive species. While there is overlap between the hotspots of threatened and extinct island endemics birds, there are some notable differences, including the Philippines and Indonesia, which support a substantial number of threatened species but have no recorded post-1500 CE bird extinctions. Traits associated with threatened island endemic birds are large body mass, flightlessness, aquatic predator, omnivorous and vertivorous trophic niches, marine habitat affinity, and, paradoxically, higher dispersal ability. Critically, we find that threatened endemics (i) occupy distinct areas of beak morphospace, and (ii) represent substantial unique areas of the overall functional space of island endemics. We caution that the loss of threatened species may have severe effects on the ecological functions birds provide on islands.