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Cited by 1,233Avian ecology and behaviorAnimal Behavior and ReproductionAnimal Ecology and Behavior Studies

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AVIAN LIFE HISTORY VARIATION AND CONTRIBUTION OF DEMOGRAPHIC TRAITS TO THE POPULATION GROWTH RATE

Sæther, Bernt-Erik, Bakke, Øyvind·2000·Ecology
DOI 10.1890/0012-9658(2000)081[0642:alhvac]2.0.co;2
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Abstract

A central goal in ecology is to predict population dynamics from demographic information. Based on the asymptotic population growth rate λ, calculated from a projection matrix model as a descriptor of the population dynamics, we analyze published data of 49 species of birds to determine how λ is influenced by variation in different demographic traits. Across species, the mean elasticity of the adult survival rate was significantly larger than the mean elasticity of the fecundity rate. The contribution of the fecundity rate to the population growth rate increased with increasing clutch size and decreasing adult survival rate, while the greatest contribution of adult survival rate occurred among long‐lived species that matured late and laid few eggs. This represents a continuum from “highly reproductive species” at one end to “survivor species” at the other end. In addition, a high contribution of adult survival rate was found in some relatively long‐lived species with early age at maturity (and a large clutch size) which was assumed to represent a bet‐hedging strategy, i.e., producing a large number of offspring in some occasional good years. In a retrospective analysis, interspecific differences in the effects of actual temporal variation in adult survival rate and fecundity rate on the variability of λ were analyzed. These effects are expected to be large when the variance or the sensitivity of the trait is large. Because there was a negative relationship among species, both…

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Metadata

Authors
Sæther, B.-E., & Bakke, Ø.
Affiliations
Norwegian University of Science and Technology (NO)
Corresponding author
Sæther, Bernt-Erik
ORCID
Venue
Ecology
Publisher
Wiley
Published
2000-03
Volume
81
Issue
3
Pages
642-653
ISSN
0012-9658 (ISSN-L)
DOI
10.1890/0012-9658(2000)081[0642:alhvac]2.0.co;2
OpenAlex
W2091493864
Cited by
1,233
References
47
Citations by year
2026: 41 · 2025: 37 · 2024: 46 · 2023: 48 · 2022: 50 · 2021: 67 · 2020: 59 · 2019: 51 · 2018: 72 · 2017: 71 · 2016: 72 · 2015: 71 · 2014: 59 · 2013: 55 · 2012: 54
FWCI
23.98
Type
journal article
Language
en
Open access
closed
Licence
doi.wiley.com/10.1002/tdm_license_1.1 (tdm, 5662 d)
Locations
Ecology (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Ecology › Avian ecology and behavior
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
  • Physical Sciences › Environmental Science › Ecology › Animal Ecology and Behavior Studies
Keywords
avian life history, population growth rate, elasticity, adult survival, clutch size, age at maturity, long-lived species, bet-hedging, bird demography, population dynamics

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Sæther, B.-E., & Bakke, Ø. (2000). AVIAN LIFE HISTORY VARIATION AND CONTRIBUTION OF DEMOGRAPHIC TRAITS TO THE POPULATION GROWTH RATE. Ecology. https://doi.org/10.1890/0012-9658(2000)081%5B0642%3Aalhvac%5D2.0.co%3B2