scholarly journals Bergmann's rule is maintained during a rapid range expansion in a damselfly

2013 ◽  
Vol 20 (2) ◽  
pp. 475-482 ◽  
Author(s):  
Christopher Hassall ◽  
Simon Keat ◽  
David J. Thompson ◽  
Phillip C. Watts
Keyword(s):  
Range Expansion ◽  
Bergmann’S Rule ◽  
Bergmann's Rule

scholarly journals Testing Bergmann's rule in marine copepods

Ecography ◽  
2021 ◽  
Author(s):  
Max D. Campbell ◽  
David S. Schoeman ◽  
William Venables ◽  
Rana Abu‐Alhaija ◽  
Sonia D. Batten ◽  
...  
Keyword(s):  
Bergmann’S Rule ◽  
Bergmann's Rule ◽  
Marine Copepods

Geographical Variations of the Skull in the Red FoxVulpes vulpeson the Japanese Islands: An Exception to Bergmann's Rule

2010 ◽  
Vol 27 (12) ◽  
pp. 939-945 ◽  
Author(s):  
Takuya Oishi ◽  
Kohji Uraguchi ◽  
Alexei V. Abramov ◽  
Ryuichi Masuda
Keyword(s):  
Bergmann’S Rule ◽  
Bergmann's Rule ◽  
Geographical Variations ◽  
Japanese Islands

An interspecific test of Bergmann's rule reveals inconsistent body size patterns across several lineages of water beetles (Coleoptera: Dytiscidae)

2018 ◽  
Vol 44 (2) ◽  
pp. 249-254 ◽  
Author(s):  
Susana Pallarés ◽  
Michele Lai ◽  
Pedro Abellán ◽  
Ignacio Ribera ◽  
David Sánchez-Fernández
Keyword(s):  
Body Size ◽  
Bergmann’S Rule ◽  
Bergmann's Rule ◽  
Water Beetles

Latitudinal body-mass trends in Oligo-Miocene mammals

Paleobiology ◽  
2016 ◽  
Vol 42 (4) ◽  
pp. 643-658
Author(s):  
John D. Orcutt ◽  
Samantha S. B. Hopkins
Keyword(s):  
Body Size ◽  
Body Mass ◽  
Regional Scale ◽  
Latitudinal Gradients ◽  
Bergmann’S Rule ◽  
Strongly Correlated ◽  
Bergmann's Rule ◽  
Deep Time ◽  
Causal Factors ◽  
Primary Driver

AbstractPaleecological data allow not only the study of trends along deep-time chronological transects but can also be used to reconstruct ecological gradients through time, which can help identify causal factors that may be strongly correlated in modern ecosystems. We have applied such an analysis to Bergmann’s rule, which posits a causal relationship between temperature and body size in mammals. Bergmann’s rule predicts that latitudinal gradients should exist during any interval of time, with larger taxa toward the poles and smaller taxa toward the equator. It also predicts that the strength of these gradients should vary with time, becoming weaker during warmer periods and stronger during colder conditions. We tested these predictions by reconstructing body-mass trends within canid and equid genera at different intervals of the Oligo-Miocene along the West Coast of North America. To allow for comparisons with modern taxa, body mass was reconstructed along the same transect for modernCanisandOdocoileus. Of the 17 fossil genera analyzed, only two showed the expected positive relationship with latitude, nor was there consistent evidence for a relationship between paleotemperature and body mass. Likewise, the strength of body-size gradients does not change predictably with climate through time. The evidence for clear gradients is ambiguous even in the modern genera analyzed. These results suggest that, counter to Bergmann’s rule, temperature alone is not a primary driver of body size and underscore the importance of regional-scale paleoecological analyses in identifying such drivers.

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