Imperial College London


Faculty of Natural SciencesDepartment of Life Sciences (Silwood Park)

Reader in Biodiversity and Ecosystems



+44 (0)20 7594 1059j.tobias




KennedySilwood Park






BibTex format

author = {Pigot, AL and Tobias, JA and Jetz, W},
doi = {10.1371/journal.pbio.1002407},
journal = {PLoS Biology},
title = {Energetic Constraints on Species Coexistence in Birds},
url = {},
volume = {14},
year = {2016}

RIS format (EndNote, RefMan)

AB - © 2016 Pigot et al. The association between species richness and ecosystem energy availability is one of the major geographic trends in biodiversity. It is often explained in terms of energetic constraints, such that coexistence among competing species is limited in low productivity environments. However, it has proven challenging to reject alternative views, including the null hypothesis that species richness has simply had more time to accumulate in productive regions, and thus the role of energetic constraints in limiting coexistence remains largely unknown. We use the phylogenetic relationships and geographic ranges of sister species (pairs of lineages who are each other’s closest extant relatives) to examine the association between energy availability and coexistence across an entire vertebrate class (Aves). We show that the incidence of coexistence among sister species increases with overall species richness and is elevated in more productive ecosystems, even when accounting for differences in the evolutionary time available for coexistence to occur. Our results indicate that energy availability promotes species coexistence in closely related lineages, providing a key step toward a more mechanistic understanding of the productivity–richness relationship underlying global gradients in biodiversity.
AU - Pigot,AL
AU - Tobias,JA
AU - Jetz,W
DO - 10.1371/journal.pbio.1002407
PY - 2016///
SN - 1544-9173
TI - Energetic Constraints on Species Coexistence in Birds
T2 - PLoS Biology
UR -
UR -
VL - 14
ER -