Avian growth and development rates and age-specific mortality: the roles of nest predation and adult mortality

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F07%3A00004632" target="_blank" >RIV/61989592:15310/07:00004632 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Avian growth and development rates and age-specific mortality: the roles of nest predation and adult mortality

Original language description

Previous studies have shown that avian growth and development covary with juvenile mortality. Juveniles of birds under strong nest predation pressure grow rapidly, have short incubation and nestling periods, and leave the nest at low body mass. Life-history theory predicts that parental investment increases with adult mortality rate. Thus, developmental traits that depend on the parental effort exerted (pre- and postnatal growth rate) should scale positively with adult mortality, in contrast to those that do not have a direct relationship with parental investment (timing of developmental events, e.g. nest leaving). I tested this prediction on a sample of 84 North American songbirds. Nestling growth rate scaled positively and incubation period durationnegatively with annual adult mortality rates even when controlled for nest predation and other covariates, including phylogeny. On the contrary, neither the duration of the nestling period nor body mass at fledging showed any relationship

Czech name

Růst a vývin u ptáků a věkově specifická mortalita: role predace hnízd a mortality dospělců

Czech description

Na souboru 84 severoamerických pěvců jsem ukázal, že rychlost růstu mláďat koreluje pozitivně a délka inkubace negativně s mortalitou dospělců i po kontrole vlivu predace hnízd a dalších faktorů. Naopak ani délka péče o mláďata ani hmotnost při opouštěníhnízda neměly k mortalitě dospělců žádný vliv. Tato zjištění mají zajímavé implikace pro interpretace evoluce rodičovské péče a rodičovských investic u ptáků.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

<a href="/en/project/GP206%2F05%2FP581" target="_blank" >GP206/05/P581: Ecology and evolution of growth and development in birds: a comparative approach applied on the model group of passerines</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Evolutionary Biology

ISSN

1010-061X

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

320-325

UT code for WoS article

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EID of the result in the Scopus database

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