Decomposing trends in bird populations: Climate, life histories and habitat affect different aspects of population change

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F23%3A00569650" target="_blank" >RIV/68081766:_____/23:00569650 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11620/23:10468201 RIV/00216208:11310/23:10468201 RIV/60460709:41330/23:97517 RIV/61989592:15310/23:73622560

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1111/ddi.13682" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/ddi.13682</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ddi.13682" target="_blank" >10.1111/ddi.13682</a>

Result language

angličtina

Original language name

Decomposing trends in bird populations: Climate, life histories and habitat affect different aspects of population change

Original language description

Aim: Despite the complexity of population dynamics, most studies concerning current changes in bird populations reduce the trajectory of population change to a linear trend. This may hide more complex patterns reflecting responses of bird populations to changing anthropogenic pressures. Here, we address this complexity by means of multivariate analysis and attribute different components of bird population dynamics to different potential drivers.Location: Czech Republic.Methods: We used data on population trajectories (1982- 2019) of 111 common breeding bird species, decomposed them into independent components by means of the principal component analysis (PCA), and related these components to multiple potential drivers comprising climate, land use change and species' life histories.Results: The first two ordination axes explained substantial proportion of variability of population dynamics (42.0 and 12.5% of variation in PC1 and PC2 respectively). The first axis captured linear population trend. Species with increasing populations were characterized mostly by long lifespan and warmer climatic niches. The effect of habitat was less pronounced but still significant, with negative trends being typical for farmland birds, while positive trends characterized birds of deciduous forests. The second axis captured the contrast between hump-shaped and U-shaped population trajectories and was even more strongly associated with species traits. Species migrating longer distances and species with narrower temperature niches revealed hump-shaped population trends, so that their populations mostly increased before 2000 and then declined. These patterns are supported by the trends of total abundances of respective ecological groups.Main Conclusion: Although habitat transformation apparently drives population trajectories in some species groups, climate change and associated species traits represent crucial drivers of complex population dynamics of central European birds. Decomposing population dynamics into separate components brings unique insights into non-trivial patterns of population change and their drivers, and may potentially indicate changes in the regime of anthropogenic effects on biodiversity.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Diversity and Distributions

ISSN

1366-9516

e-ISSN

1472-4642

Volume of the periodical

29

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

572-585

UT code for WoS article

000929887400001

EID of the result in the Scopus database

2-s2.0-85147531468