Covariation in population trends and demography reveals targets for conservation action / Catriona A. Morrison, Simon J. Butler, Robert A. Robinson, Jacquie A. Clark, Juan Arizaga, Ainars Aunins, Oriol Baltà, Jaroslav Cepák, Tomasz Chodkiewicz, Virginia Escandell, Ruud P. B. Foppen, Richard D. Gregory, Magne Husby, Frédéric Jiguet, John Atle Kålås, Aleksi Lehikoinen, Åke Lindström, Charlotte M. Moshøj, Károly Nagy, Arantza Leal Nebot, Markus Piha, Jiří Reif, Thomas Sattler, Jana Škorpilová, Tibor Szép, Norbert Teufelbauer, Kasper Thorup, Chris van Turnhout, Thomas Wenninger, Jennifer A. Gill.
Contributor(s): Arizaga, Juan
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Computer fileCitation: Arizaga, J. y otros, 2021. Covariation in population trends and demography reveals targets for conservation action. Proc. R. Soc. B 288: 20202955. https://doi.org/10.1098/rspb.2020.2955 Publisher: [S.l.]: Royal Society, 2021Content type: texto (visual) Media type: sin mediación Genre/Form: Comunicación en congresoSummary: Wildlife conservation policies directed at common and widespread, but declining, species are difficult to design and
implement effectively, as multiple environmental changes
are likely to contribute to population declines. Conservation
actions ultimately aim to influence demographic rates, but
targeting actions towards feasible improvements in these is
challenging in widespread species with ranges that encompass a wide range of environmental conditions. Across
Europe, sharp declines in the abundance of migratory landbirds have driven international calls for action, but actions
that could feasibly contribute to population recovery have
yet to be identified. Targeted actions to improve conditions
on poor-quality sites could be an effective approach, but
only if local conditions consistently influence local demography and hence population trends. Using long-term measures
of abundance and demography of breeding birds at survey
sites across Europe, we show that co-occurring species with
differing migration behaviours have similar directions of
local population trends and magnitudes of productivity, but
not survival rates. Targeted actions to boost local productivity within Europe, alongside large-scale (nontargeted) environmental protection across non-breeding ranges, could therefore help address the urgent need to halt migrant landbird declines. Such demographic routes to recovery are likely to be increasingly needed to address global wildlife declines.
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Wildlife conservation policies directed at common and widespread, but declining, species are difficult to design and
implement effectively, as multiple environmental changes
are likely to contribute to population declines. Conservation
actions ultimately aim to influence demographic rates, but
targeting actions towards feasible improvements in these is
challenging in widespread species with ranges that encompass a wide range of environmental conditions. Across
Europe, sharp declines in the abundance of migratory landbirds have driven international calls for action, but actions
that could feasibly contribute to population recovery have
yet to be identified. Targeted actions to improve conditions
on poor-quality sites could be an effective approach, but
only if local conditions consistently influence local demography and hence population trends. Using long-term measures
of abundance and demography of breeding birds at survey
sites across Europe, we show that co-occurring species with
differing migration behaviours have similar directions of
local population trends and magnitudes of productivity, but
not survival rates. Targeted actions to boost local productivity within Europe, alongside large-scale (nontargeted) environmental protection across non-breeding ranges, could therefore help address the urgent need to halt migrant landbird declines. Such demographic routes to recovery are likely to be increasingly needed to address global wildlife declines.
Arizaga, J. y otros, 2021. Covariation in population trends and demography reveals targets for conservation action. Proc. R. Soc. B 288: 20202955. https://doi.org/10.1098/rspb.2020.2955
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