Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle
The effect of habitat management is commonly evaluated by measuring population growth, which does not distinguish changes in reproductive success from changes in survival or the effects of immigration or emigration. Management has rarely been evaluated considering complete life cycle of the target o...
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ftdryad:oai:v1.datadryad.org:10255/dryad.122885 2023-05-15T15:48:15+02:00 Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle Pakanen, Veli-Matti Aikio, Sami Luukkonen, Aappo Koivula, Kari Europe 2002-2010 2016-09-14T22:30:25Z http://hdl.handle.net/10255/dryad.122885 https://doi.org/10.5061/dryad.b2852 unknown doi:10.5061/dryad.b2852/1 doi:10.1002/ece3.2369 doi:10.5061/dryad.b2852 Pakanen V, Aikio S, Luukkonen A, Koivula K (2016) Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle. Ecology and Evolution 6(20): 7176-7187. 2045-7758 http://hdl.handle.net/10255/dryad.122885 nest trampling demography Article 2016 ftdryad https://doi.org/10.5061/dryad.b2852 https://doi.org/10.5061/dryad.b2852/1 https://doi.org/10.1002/ece3.2369 2020-01-01T15:38:39Z The effect of habitat management is commonly evaluated by measuring population growth, which does not distinguish changes in reproductive success from changes in survival or the effects of immigration or emigration. Management has rarely been evaluated considering complete life cycle of the target organisms, including also possible negative impacts from management. We evaluated the effectiveness of cattle grazing in the restoration of coastal meadows as a breeding habitat for small and medium-sized ground-nesting birds by examining the size and demography of a southern dunlin (Calidris alpina schinzii) breeding population. Using a stochastic renesting model that includes within-season variation in breeding parameters, we evaluated the effect of grazing time and stocking rates on reproduction. The census data indicated that the population was stable when nest trampling was prevented, but detailed demographic models showed that the population on managed meadows was a sink that persisted by attracting immigrants. Even small reductions in reproductive success caused by trampling were detrimental to long-term viability. We suggest that the best management strategy is to postpone grazing to after the 19th of June, which is about three weeks later than what is optimal from the farmer's point of view. The differing results from the two evaluation approaches warn against planning and evaluating management only based on census population size and highlight the need to consider target-specific life history characteristics and demography. Even though grazing management is crucial for creating and maintaining suitable habitats, we found that it was insufficient in maintaining a viable population without additional measures that increase nest success. In the presently studied case and in populations with similar breeding cycles, impacts from nest trampling can be avoided by starting grazing when about 70% of the breeding season has past. Article in Journal/Newspaper Calidris alpina Dunlin Dryad Digital Repository (Duke University) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
nest trampling demography |
spellingShingle |
nest trampling demography Pakanen, Veli-Matti Aikio, Sami Luukkonen, Aappo Koivula, Kari Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle |
topic_facet |
nest trampling demography |
description |
The effect of habitat management is commonly evaluated by measuring population growth, which does not distinguish changes in reproductive success from changes in survival or the effects of immigration or emigration. Management has rarely been evaluated considering complete life cycle of the target organisms, including also possible negative impacts from management. We evaluated the effectiveness of cattle grazing in the restoration of coastal meadows as a breeding habitat for small and medium-sized ground-nesting birds by examining the size and demography of a southern dunlin (Calidris alpina schinzii) breeding population. Using a stochastic renesting model that includes within-season variation in breeding parameters, we evaluated the effect of grazing time and stocking rates on reproduction. The census data indicated that the population was stable when nest trampling was prevented, but detailed demographic models showed that the population on managed meadows was a sink that persisted by attracting immigrants. Even small reductions in reproductive success caused by trampling were detrimental to long-term viability. We suggest that the best management strategy is to postpone grazing to after the 19th of June, which is about three weeks later than what is optimal from the farmer's point of view. The differing results from the two evaluation approaches warn against planning and evaluating management only based on census population size and highlight the need to consider target-specific life history characteristics and demography. Even though grazing management is crucial for creating and maintaining suitable habitats, we found that it was insufficient in maintaining a viable population without additional measures that increase nest success. In the presently studied case and in populations with similar breeding cycles, impacts from nest trampling can be avoided by starting grazing when about 70% of the breeding season has past. |
format |
Article in Journal/Newspaper |
author |
Pakanen, Veli-Matti Aikio, Sami Luukkonen, Aappo Koivula, Kari |
author_facet |
Pakanen, Veli-Matti Aikio, Sami Luukkonen, Aappo Koivula, Kari |
author_sort |
Pakanen, Veli-Matti |
title |
Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle |
title_short |
Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle |
title_full |
Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle |
title_fullStr |
Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle |
title_full_unstemmed |
Data from: Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle |
title_sort |
data from: grazed wet meadows are sink habitats for the southern dunlin (calidris alpina schinzii) due to nest trampling by cattle |
publishDate |
2016 |
url |
http://hdl.handle.net/10255/dryad.122885 https://doi.org/10.5061/dryad.b2852 |
op_coverage |
Europe 2002-2010 |
genre |
Calidris alpina Dunlin |
genre_facet |
Calidris alpina Dunlin |
op_relation |
doi:10.5061/dryad.b2852/1 doi:10.1002/ece3.2369 doi:10.5061/dryad.b2852 Pakanen V, Aikio S, Luukkonen A, Koivula K (2016) Grazed wet meadows are sink habitats for the southern dunlin (Calidris alpina schinzii) due to nest trampling by cattle. Ecology and Evolution 6(20): 7176-7187. 2045-7758 http://hdl.handle.net/10255/dryad.122885 |
op_doi |
https://doi.org/10.5061/dryad.b2852 https://doi.org/10.5061/dryad.b2852/1 https://doi.org/10.1002/ece3.2369 |
_version_ |
1766383249319264256 |