Body mass-related changes in mammal community assembly patterns during the late Quaternary of North America

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Pineda-Munoz , S , Jukar , A M , Toth , A B , Fraser , D , Du , A , Barr , W A , Amatangelo , K L , Balk , M A , Behrensmeyer , A K , Blois , J , Davis , M , Eronen , J T , Gotelli , N J , Looy , C , Miller , J H , Shupinski , A B , Soul , L C , Villasenor , A , Wing , S & Lyons , S K 2021 , ' Body mass-related changes in mammal community assembly patterns during the late Quaternary of North America ' , Ecography , vol. 44 , no. 1 , pp. 56-66 . https://doi.org/10.1111/ecog.05027

Title: Body mass-related changes in mammal community assembly patterns during the late Quaternary of North America
Author: Pineda-Munoz, Silvia; Jukar, Advait M.; Toth, Aniko B.; Fraser, Danielle; Du, Andrew; Barr, W. Andrew; Amatangelo, Kathryn L.; Balk, Meghan A.; Behrensmeyer, Anna K.; Blois, Jessica; Davis, Matt; Eronen, Jussi T.; Gotelli, Nicholas J.; Looy, Cindy; Miller, Joshua H.; Shupinski, Alexandria B.; Soul, Laura C.; Villasenor, Amelia; Wing, Scott; Lyons, S. Kathleen
Contributor organization: Ecosystems and Environment Research Programme
Helsinki Institute of Sustainability Science (HELSUS)
Creative adaptation to wicked socio-environmental disruptions (WISE STN)
Past Present Sustainability (PAES)
Date: 2021-01
Language: eng
Number of pages: 11
Belongs to series: Ecography
ISSN: 0906-7590
DOI: https://doi.org/10.1111/ecog.05027
URI: http://hdl.handle.net/10138/328172
Abstract: The late Quaternary of North America was marked by prominent ecological changes, including the end-Pleistocene megafaunal extinction, the spread of human settlements and the rise of agriculture. Here we examine the mechanistic reasons for temporal changes in mammal species association and body size during this time period. Building upon the co-occurrence results from Lyons et al. (2016) - wherein each species pair was classified as spatially aggregated, segregated or random - we examined body mass differences (BMD) between each species pair for each association type and time period (Late Pleistocene: 40 000(14)C-11 700(14)C ybp, Holocene: 11 700(14)C-50 ybp and Modern: 50-0 yr). In the Late Pleistocene and Holocene, the BMD of both aggregated and segregated species pairs was significantly smaller than the BMD of random pairs. These results are consistent with environmental filtering and competition as important drivers of community structure in both time periods. Modern assemblages showed a breakdown between BMD and co-occurrence patterns: the average BMD of aggregated, segregated and random species pairs did not differ from each other. Collectively, these results indicate that the late Quaternary mammalian extinctions not only eliminated many large-bodied species but were followed by a re-organization of communities that altered patterns of species coexistence and associated differences in body size.
Subject: 1181 Ecology, evolutionary biology
body-mass
co-occurrence
mammals
megafaunal extinction
PAIRS
HOLOCENE CLIMATE-CHANGE
RANGE SHIFTS
NULL MODELS
GREAT-BASIN
PLEISTOCENE
TRAIT
EXTINCTIONS
SIZE
DISTRIBUTIONS
CONSTRAINTS
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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