Impacts of supplemental feeding on survival rates of black-capped chickadees

M. C. Brittingham; S. A. Temple

doi:10.2307/1941007

Impacts of supplemental feeding on survival rates of black-capped chickadees

M. C. Brittingham, S. A. Temple

Ecosystem Science and Management

Research output: Contribution to journal › Article › peer-review

139 Scopus citations

Abstract

Parus atricapillus with access to supplemental food had higher average monthly survival rates (95 vs. 87%), higher over-winter survival rates (69 vs. 37%), and higher standardized body masses (an additional 0.13 g) than birds on control sites. Differential survival occurred primarily during months with severe weather (>5 d below -18^oC). During these months, high energy demands probably made it difficult for birds without access to supplemental food to obtain sufficient energy from dispersed natural sources. Also, during periods of extreme weather when foraging may be difficult, the extra fat carried by individuals that are supplementally fed may increase the probability of survival. -from Authors

Original language	English (US)
Pages (from-to)	581-589
Number of pages	9
Journal	Ecology
Volume	69
Issue number	3
DOIs	https://doi.org/10.2307/1941007
State	Published - 1988

All Science Journal Classification (ASJC) codes

Ecology, Evolution, Behavior and Systematics

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10.2307/1941007

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abstract = "Parus atricapillus with access to supplemental food had higher average monthly survival rates (95 vs. 87%), higher over-winter survival rates (69 vs. 37%), and higher standardized body masses (an additional 0.13 g) than birds on control sites. Differential survival occurred primarily during months with severe weather (>5 d below -18oC). During these months, high energy demands probably made it difficult for birds without access to supplemental food to obtain sufficient energy from dispersed natural sources. Also, during periods of extreme weather when foraging may be difficult, the extra fat carried by individuals that are supplementally fed may increase the probability of survival. -from Authors",

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AU - Temple, S. A.

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AB - Parus atricapillus with access to supplemental food had higher average monthly survival rates (95 vs. 87%), higher over-winter survival rates (69 vs. 37%), and higher standardized body masses (an additional 0.13 g) than birds on control sites. Differential survival occurred primarily during months with severe weather (>5 d below -18oC). During these months, high energy demands probably made it difficult for birds without access to supplemental food to obtain sufficient energy from dispersed natural sources. Also, during periods of extreme weather when foraging may be difficult, the extra fat carried by individuals that are supplementally fed may increase the probability of survival. -from Authors

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JF - Ecology

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ER -

Impacts of supplemental feeding on survival rates of black-capped chickadees

Abstract

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