Metabolic Ecology. A Scaling Approach by R. M.Sibly, J. H.Brown and A.Kodric-Brown (eds). Wiley-Blackwell, Oxford, 2012. xv + 375 pp. Price AUD$237.95 (hardback; also available in paperback and E-book). ISBN 9780470671535.

2016 ◽  
Vol 41 (4) ◽  
pp. e8-e9
Author(s):  
María Pérez-Fernández
Keyword(s):  
2021 ◽  
Author(s):  
Thomas Ruiz ◽  
Apostolos‐Manuel Koussoroplis ◽  
Michael Danger ◽  
Jean‐Pierre Aguer ◽  
Nicole Morel‐Desrosiers ◽  
...  

2012 ◽  
Vol 90 (3) ◽  
pp. 413-421 ◽  
Author(s):  
V. Careau ◽  
D. Garant ◽  
M.M. Humphries

Given the ubiquity and evolutionary importance of parasites, their effect on the energy budget of mammals remains surprisingly unclear. The eastern chipmunk ( Tamias striatus (L., 1758)) is a burrowing rodent that is commonly infected by cuterebrid bot fly ( Cuterebra emasculator Fitch, 1856) larvae. We measured resting metabolic rate (RMR) and cold-induced Vo2-max (under heliox atmosphere) in 20 free-ranging individuals, of which 4 individuals were infected by one or two larva. We found that RMR was significantly higher in chipmunks infected by bot fly larvae (mean ± SE = 0.88 ± 0.05 W) than in uninfected individuals (0.74 ± 0.02 W). In contrast, Vo2-max was significantly lower in chipmunks infected by bot fly larvae (4.96 ± 0.70 W) than in uninfected individuals (6.37 ± 0.16 W). Consequently, the aerobic scope (ratio of Vo2-max to RMR) was negatively correlated with the number of bot fly larvae (infected individuals = 5.74 ± 1.03 W; noninfected individuals = 8.67 ± 0.26 W). Finally, after accounting for the effects of body mass and bot fly parasitism on RMR and Vo2-max, there was no correlation between the two variables among individuals within our population. In addition to providing the first estimate of Vo2-max in T. striatus, these results offer additional evidence that bot fly parasitism has significant impacts on the metabolic ecology of this host species.


2021 ◽  
Author(s):  
Stuart Bryce Dixon Sopp ◽  
Ruben Valbuena

Abstract Plant allometry is key for determining the role of forests in global carbon cycles, through the calculation of tree biomass using proxy measurements such as tree diameters or heights. Metabolic ecology theory (MET) considers the general principles that underpin allometry, but MET scaling relationships have been challenged on their lack of fit to empirical data and global applicability. We postulated that MET scaling is applicable only for plant tissues combining conductive and supportive functionality (tracheids), but as plants evolved tissues of specialized conductive functionality (vessels) their allometry progressed into more complex relationships. According to this principle, we deducted generalized MET (gMET) relationships with mechanistically deducted coefficients. Our gMET models proved to have exceptional empirical support against global datasets, achieving unbiased predictions across biomes worldwide. These results prove gMET models to be a crucial improvement to MET-based allometry, providing a universally applicable theoretical framework for worldwide estimations of forest carbon.


2006 ◽  
Vol 9 (5) ◽  
pp. 575-588 ◽  
Author(s):  
Helene C. Muller-Landau ◽  
Richard S. Condit ◽  
Jerome Chave ◽  
Sean C. Thomas ◽  
Stephanie A. Bohlman ◽  
...  

PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0190470 ◽  
Author(s):  
Levi S. Lewis ◽  
Jennifer E. Smith ◽  
Yoan Eynaud
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document