Reorganization of surviving mammal communities after the end-Pleistocene megafaunal extinction

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Toth , A B , Lyons , S K , Barr , W A , Behrensmeyer , A K , Blois , J L , Bobe , R , Davis , M , Du , A , Eronen , J T , Faith , J T , Fraser , D , Gotelli , N J , Graves , G R , Jukar , A M , Miller , J H , Pineda-Munoz , S , Soul , L C , Villasenor , A & Alroy , J 2019 , ' Reorganization of surviving mammal communities after the end-Pleistocene megafaunal extinction ' , Science , vol. 365 , no. 6459 , pp. 1305-+ . https://doi.org/10.1126/science.aaw1605

Title: Reorganization of surviving mammal communities after the end-Pleistocene megafaunal extinction
Author: Toth, Aniko B.; Lyons, S. Kathleen; Barr, W. Andrew; Behrensmeyer, Anna K.; Blois, Jessica L.; Bobe, Rene; Davis, Matt; Du, Andrew; Eronen, Jussi T.; Faith, J. Tyler; Fraser, Danielle; Gotelli, Nicholas J.; Graves, Gary R.; Jukar, Advait M.; Miller, Joshua H.; Pineda-Munoz, Silvia; Soul, Laura C.; Villasenor, Amelia; Alroy, John
Contributor: University of Helsinki, Helsinki Institute of Sustainability Science (HELSUS)
Date: 2019-09-20
Language: eng
Number of pages: 41
Belongs to series: Science
ISSN: 0036-8075
URI: http://hdl.handle.net/10138/327004
Abstract: Large mammals are at high risk of extinction globally. To understand the consequences of their demise for community assembly, we tracked community structure through the end-Pleistocene megafaunal extinction in North America. We decomposed the effects of biotic and abiotic factors by analyzing co-occurrence within the mutual ranges of species pairs. Although shifting climate drove an increase in niche overlap, co-occurrence decreased, signaling shifts in biotic interactions. Furthermore, the effect of abiotic factors on co-occurrence remained constant over time while the effect of biotic factors decreased. Biotic factors apparently played a key role in continental-scale community assembly before the extinctions. Specifically, large mammals likely promoted co-occurrence in the Pleistocene, and their loss contributed to the modern assembly pattern in which co-occurrence frequently falls below random expectations.
Subject: RADIOCARBON CALIBRATION
NULL MODEL
EXTIRPATION
SIMULATION
INTCAL13
MARINE13
ELEMENTS
PLANT
MASS
1172 Environmental sciences
1181 Ecology, evolutionary biology
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