Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers
It is often desirable to estimate the metabolic costs incurred by homeothermic organisms of differing morphology living in different real or hypothetical environmental conditions. To address this problem, we describe a method, based on previously published empirical allometric and heat-transfer equa...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1997
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/z97-012 http://www.nrcresearchpress.com/doi/pdf/10.1139/z97-012 |
id |
crcansciencepubl:10.1139/z97-012 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/z97-012 2023-12-17T10:25:40+01:00 Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers Cartar, Ralph V. Morrison, R. I. Guy 1997 http://dx.doi.org/10.1139/z97-012 http://www.nrcresearchpress.com/doi/pdf/10.1139/z97-012 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 75, issue 1, page 94-101 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1997 crcansciencepubl https://doi.org/10.1139/z97-012 2023-11-19T13:38:42Z It is often desirable to estimate the metabolic costs incurred by homeothermic organisms of differing morphology living in different real or hypothetical environmental conditions. To address this problem, we describe a method, based on previously published empirical allometric and heat-transfer equations, that allows a rough estimate to be made of the daily maintenance metabolic costs (i.e., basal and thermoregulatory costs) incurred by a bird in a simple cold two-dimensional environment. The model uses widely available weather variables (temperature, wind speed, and global solar radiation), morphological variables (body mass, height of body's centre of gravity, diameter of torso), and a habitat variable (height of vegetation). We apply the model to weather data from the Canadian Arctic to predict daily metabolic costs for two calidridine sandpiper species (Calidris canutus and C. minutilla) during the summer. The model is extremely sensitive to error in the slope and intercept of the allometric equation predicting conductance from body mass, but is generally robust to other model parameters. Using ambient temperature (T a ) in place of operative temperature (T e ) has only a minor (3.5%) effect on predicted metabolic costs, so, given that T e is difficult to estimate, we recommend this substitution (at least for arctic latitudes, where solar radiation is of reduced importance). The model predicts metabolic rates similar to those obtained from an equation based on a heated taxidermic mount for C. canutus, thereby providing some measure of validation. The model can easily be modified to predict metabolic costs for other groups of birds or mammals. Article in Journal/Newspaper Arctic Calidris canutus Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Zoology 75 1 94 101 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Cartar, Ralph V. Morrison, R. I. Guy Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
It is often desirable to estimate the metabolic costs incurred by homeothermic organisms of differing morphology living in different real or hypothetical environmental conditions. To address this problem, we describe a method, based on previously published empirical allometric and heat-transfer equations, that allows a rough estimate to be made of the daily maintenance metabolic costs (i.e., basal and thermoregulatory costs) incurred by a bird in a simple cold two-dimensional environment. The model uses widely available weather variables (temperature, wind speed, and global solar radiation), morphological variables (body mass, height of body's centre of gravity, diameter of torso), and a habitat variable (height of vegetation). We apply the model to weather data from the Canadian Arctic to predict daily metabolic costs for two calidridine sandpiper species (Calidris canutus and C. minutilla) during the summer. The model is extremely sensitive to error in the slope and intercept of the allometric equation predicting conductance from body mass, but is generally robust to other model parameters. Using ambient temperature (T a ) in place of operative temperature (T e ) has only a minor (3.5%) effect on predicted metabolic costs, so, given that T e is difficult to estimate, we recommend this substitution (at least for arctic latitudes, where solar radiation is of reduced importance). The model predicts metabolic rates similar to those obtained from an equation based on a heated taxidermic mount for C. canutus, thereby providing some measure of validation. The model can easily be modified to predict metabolic costs for other groups of birds or mammals. |
format |
Article in Journal/Newspaper |
author |
Cartar, Ralph V. Morrison, R. I. Guy |
author_facet |
Cartar, Ralph V. Morrison, R. I. Guy |
author_sort |
Cartar, Ralph V. |
title |
Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
title_short |
Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
title_full |
Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
title_fullStr |
Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
title_full_unstemmed |
Estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
title_sort |
estimating metabolic costs for homeotherms from weather data and morphology: an example using calidridine sandpipers |
publisher |
Canadian Science Publishing |
publishDate |
1997 |
url |
http://dx.doi.org/10.1139/z97-012 http://www.nrcresearchpress.com/doi/pdf/10.1139/z97-012 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calidris canutus |
genre_facet |
Arctic Calidris canutus |
op_source |
Canadian Journal of Zoology volume 75, issue 1, page 94-101 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z97-012 |
container_title |
Canadian Journal of Zoology |
container_volume |
75 |
container_issue |
1 |
container_start_page |
94 |
op_container_end_page |
101 |
_version_ |
1785577320834138112 |