FN Archimer Export Format
PT J
TI Global changes threaten functional and taxonomic diversity of insular species worldwide
BT 
AF Leclerc, Camille
   Villéger, Sébastien
   Marino, Clara
   Bellard, Céline
   Di Minin, Enrico
AS 1:1;2:2;3:1,3;4:1,4;5:;
FF 1:;2:;3:;4:;5:;
C1 Ecologie Systématique Evolution CNRS AgroParisTech Université Paris‐Saclay Orsay, France
   MARBEC Université de Montpellier CNRS IFREMER IRD Montpellier Cedex ,France
   Département de biologie Ecole Normale Supérieure Université PSL Paris ,France
   Unité Biologie des Organismes et Ecosystèmes Aquatiques (BOREA ,UMR 7208) Muséum national d'Histoire naturelleSorbonne Université Université de Caen NormandieUniversité des AntillesCNRSIRD Paris, France
C2 UNIV PARIS SUD, FRANCE
   CNRS, FRANCE
   UNIV PARIS SORBONNE, FRANCE
   MNHN, FRANCE
UM MARBEC
IN WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 5.139
TC 23
UR https://archimer.ifremer.fr/doc/00607/71949/70648.pdf
   https://archimer.ifremer.fr/doc/00607/71949/70649.xlsx
   https://archimer.ifremer.fr/doc/00607/71949/70650.pdf
LA English
DT Article
DE ;birds;functional originality;functional richness;functional specialization;islands;mammals;species traits;vulnerability
AB Aim The assessment of biodiversity patterns under global changes is currently biased towards taxonomic diversity, thus overlooking the ecological and functional aspects of species. Here, we characterized both taxonomic and functional diversity of insular biodiversity threatened by multiple threats. Location Worldwide islands (n = 4,348). Methods We analysed the relative importance of eleven major threats, including biological invasions or climate change, on 2,756 insular endemic mammals and birds. Species were functionally described using five ecological traits related to diet, habitat and body mass. We computed complementary taxonomic and functional diversity indices (richness, specialization, originality and vulnerability) of species pools affected by each threatening process to investigate relationships between diversity dimensions and threats. We also determined whether species‐specific traits are associated with specific threats. Results On average, 8% of insular endemic species at risk of extinction are impacted by threats, while 20% of their functional richness is affected. However, a marked disparity in functional richness values associated with each threat can be highlighted. In particular, cultivation and wildlife exploitation are the greatest threats to insular endemic species. Moreover, each threat may contribute to the loss of at least 10% of functional diversity, because it affects threatened species that support unique and extreme functions. Finally, we found complex patterns of species‐specific traits associated with particular threats that is not explain by the threatening processes (directly affecting survival or modifying habitat). For instance, cultivation threatens very large mammals, while urbanization threatens very small mammals. Main conclusions These findings reinforce the importance of exploring the vulnerability of biodiversity facets in the face of multiple threats. Anthropogenic pressures may result in a loss of unique functions within insular ecosystems, which provides important insights into the understanding of threatening processes at a global scale. 
PY 2020
PD APR
SO Diversity And Distributions
SN 1366-9516
PU Wiley
VL 26
IS 4
UT 000511022100001
BP 402
EP 414
DI 10.1111/ddi.13024
ID 71949
ER

EF