Global latitudinal gradients and the evolution of body size in dinosaurs and mammals DOI Creative Commons
Lauren N. Wilson, Jacob D. Gardner, John P. Wilson

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 5, 2024

Abstract Global climate patterns fundamentally shape the distribution of species and ecosystems. For example, Bergmann’s rule predicts that homeothermic animals, including birds mammals, inhabiting cooler climates are generally larger than close relatives from warmer climates. The modern world, however, lacks comparative data needed to evaluate such macroecological rules rigorously. Here, we test for in Mesozoic dinosaurs mammaliaforms radiated within relatively temperate global regimes. We develop a phylogenetic model accounts biases fossil record allows variable evolutionary dispersal rates. Our analysis also includes new extreme high-latitude Late Cretaceous Arctic Prince Creek Formation. find no evidence or mammaliaforms, ancestors extant mammals. When our is applied thousands dinosaur (bird) mammal species, body size evolution remains independent latitude. A modest temperature effect found extant, but not Mesozoic, birds, suggesting was influenced by during Cenozoic climatic change. study provides general approach studying rules, highlighting record’s power address longstanding ecological principles.

Language: Английский

The importance of migratory drop-off for island colonization in birds DOI Creative Commons
Paul Dufour, Ferran Sayol, Rob Cooke

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2021)

Published: April 17, 2024

Seasonal migration is an underappreciated driver of animal diversification. Changes in migratory behaviour may favour the establishment sedentary founder populations and promote speciation if there sufficient reproductive isolation between populations. From a systematic literature review, we here quantify role drop-off—the loss behaviour—in promoting birds on islands. We identify at least 157 independent colonization events likely initiated by species that led to speciation, including 44 cases among recently extinct species. By comparing, for all islands, proportion island endemic derived from drop-off with potential colonizers, showed seasonal has larger effect richness than direct dispersal. also found increases geographic Furthermore, success depends part biogeographic ecological factors, positively associated greater range size flock sizes. These results highlight importance shifts process calls consideration distribution birds.

Language: Английский

Citations

6
Global latitudinal gradients and the evolution of body size in dinosaurs and mammals DOI Creative Commons
Lauren N. Wilson, Jacob D. Gardner, John P. Wilson

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 5, 2024

Abstract Global climate patterns fundamentally shape the distribution of species and ecosystems. For example, Bergmann’s rule predicts that homeothermic animals, including birds mammals, inhabiting cooler climates are generally larger than close relatives from warmer climates. The modern world, however, lacks comparative data needed to evaluate such macroecological rules rigorously. Here, we test for in Mesozoic dinosaurs mammaliaforms radiated within relatively temperate global regimes. We develop a phylogenetic model accounts biases fossil record allows variable evolutionary dispersal rates. Our analysis also includes new extreme high-latitude Late Cretaceous Arctic Prince Creek Formation. find no evidence or mammaliaforms, ancestors extant mammals. When our is applied thousands dinosaur (bird) mammal species, body size evolution remains independent latitude. A modest temperature effect found extant, but not Mesozoic, birds, suggesting was influenced by during Cenozoic climatic change. study provides general approach studying rules, highlighting record’s power address longstanding ecological principles.

Language: Английский

Citations

5