Global analysis of threat status reveals higher extinction risk in tropical than in temperate bird sister species

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10336714" target="_blank" >RIV/00216208:11310/16:10336714 - isvavai.cz</a>

Result on the web

<a href="https://www.degruyter.com/view/j/eje.2016.2.issue-1/eje-2016-0003/eje-2016-0003.xml" target="_blank" >https://www.degruyter.com/view/j/eje.2016.2.issue-1/eje-2016-0003/eje-2016-0003.xml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/eje-2016-0003" target="_blank" >10.1515/eje-2016-0003</a>

Result language

angličtina

Original language name

Global analysis of threat status reveals higher extinction risk in tropical than in temperate bird sister species

Original language description

Given increasing pressures upon biodiversity, identification of species' traits related to elevated extinction risk is useful for more efficient allocation of limited resources for nature conservation. Despite its need, such a global analysis was lacking in the case of birds. Therefore, we performed this exercise for avian sister species using information about their global extinction risk from IUCN Red List. We focused on 113 pairs of sister species, each containing a threatened and an unthreatened species to factor out the effects of common evolutionary history on the revealed relationship. We collected data on five traits with expected relationships to species' extinction risk based on previous studies performed at regional or national levels: breeding habitat (recognizing forest, grassland, wetland and oceanic species), latitudinal range position (temperate and tropics species), migration strategy (migratory and resident species), diet (carnivorous, insectivorous, herbivorous and omnivorous species) and body mass. We related the extinction risk using IUCN threat level categories to species' traits using generalised linear mixed effects models expecting lower risk for forest, temperate, omnivorous and smaller-bodied species. Our expectation was confirmed only in the case of latitudinal range position, as we revealed higher threat level for tropical than for temperate species. This relationship was robust to different methods of threat level expression and cannot be explained by a simple association of high bird species richness with the tropical zone. Instead, it seems that tropical species are more threatened because of their intrinsic characteristics such as slow life histories, adaptations to stable environments and small geographic ranges.

Czech name

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Czech description

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Type

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

CEP classification

EG - Zoology

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

European Journal of Ecology [online]

ISSN

1339-8474

e-ISSN

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Volume of the periodical

2

Issue of the periodical within the volume

1

Country of publishing house

PL - POLAND

Number of pages

8

Pages from-to

13-20

UT code for WoS article

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EID of the result in the Scopus database

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