TY - JOUR
T1 - Biodiversity patterns
T2 - Metabolic asymmetry and the global diversity of marine predators
AU - Grady, John M.
AU - Maitner, Brian S.
AU - Winter, Ara S.
AU - Kaschner, Kristin
AU - Tittensor, Derek P.
AU - Record, Sydne
AU - Smith, Felisa A.
AU - Wilson, Adam M.
AU - Dell, Anthony I.
AU - Zarnetske, Phoebe L.
AU - Wearing, Helen J.
AU - Alfaro, Brian
AU - Brown, James H.
N1 - Publisher Copyright:
© 2019 American Association for the Advancement of Science.All right reserved.
PY - 2019/1/25
Y1 - 2019/1/25
N2 - Species richness of marine mammals and birds is highest in cold, temperate seas-a conspicuous exception to the general latitudinal gradient of decreasing diversity from the tropics to the poles.We compiled a comprehensive dataset for 998 species of sharks, fish, reptiles, mammals, and birds to identify and quantify inverse latitudinal gradients in diversity, and derived a theory to explain these patterns.We found that richness, phylogenetic diversity, and abundance of marine predators diverge systematically with thermoregulatory strategy and water temperature, reflecting metabolic differences between endotherms and ectotherms that drive trophic and competitive interactions. Spatial patterns of foraging support theoretical predictions, with total prey consumption by mammals increasing by a factor of 80 from the equator to the poles after controlling for productivity.
AB - Species richness of marine mammals and birds is highest in cold, temperate seas-a conspicuous exception to the general latitudinal gradient of decreasing diversity from the tropics to the poles.We compiled a comprehensive dataset for 998 species of sharks, fish, reptiles, mammals, and birds to identify and quantify inverse latitudinal gradients in diversity, and derived a theory to explain these patterns.We found that richness, phylogenetic diversity, and abundance of marine predators diverge systematically with thermoregulatory strategy and water temperature, reflecting metabolic differences between endotherms and ectotherms that drive trophic and competitive interactions. Spatial patterns of foraging support theoretical predictions, with total prey consumption by mammals increasing by a factor of 80 from the equator to the poles after controlling for productivity.
UR - http://www.scopus.com/inward/record.url?scp=85060554251&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85060554251&partnerID=8YFLogxK
U2 - 10.1126/science.aat4220
DO - 10.1126/science.aat4220
M3 - Article
C2 - 30679341
AN - SCOPUS:85060554251
SN - 0036-8075
VL - 363
JO - Science
JF - Science
IS - 6425
M1 - eaat4220
ER -