Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands
Environments are rapidly changing due to climate change, land-use, intensive agriculture and the impact of hunting on predator populations. Here we analysed long-term data recorded during 1928-2014 on the size of breeding populations of waders at two large nature reserves in Denmark, Vejlerne and Ti...
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ftzenodo:oai:zenodo.org:5011581 2024-09-09T19:35:03+00:00 Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands Laursen, Karsten Balbontín, Javier Thorup, Ole Haaning Nielsen, Henrik Asferg, Tommy Møller, Anders Pape 2019-01-09 https://doi.org/10.5061/dryad.271f74f unknown Zenodo https://doi.org/10.1002/ece3.4514 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.271f74f oai:zenodo.org:5011581 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Land-use Haematopus ostralegus Vanellus vanellus Philomachus pugnax long-term studies Tringa totanus Recurvirostra avocetta temperature Calidris alpina study methods Limosa limosa info:eu-repo/semantics/other 2019 ftzenodo https://doi.org/10.5061/dryad.271f74f10.1002/ece3.4514 2024-07-26T10:45:12Z Environments are rapidly changing due to climate change, land-use, intensive agriculture and the impact of hunting on predator populations. Here we analysed long-term data recorded during 1928-2014 on the size of breeding populations of waders at two large nature reserves in Denmark, Vejlerne and Tipperne, to determine the effects of components of environmental change on breeding populations of waders. Waders are closely associated with coastal marshes and meadows, and such habitats have been reduced extensively during the last century with negative impacts on population trends of waterbirds. Environmental variables and counts of waders were temporally autocorrelated, and hence we used Generalized Least Square (GLS) by incorporating the first order autoregressive correlation structure in the analyses. We attempted to predict the abundance of waders for short-term trends for two nature reserves (35 years) and for long-term trends for one nature reserve (86 years), using precipitation, temperature, nutrients, abundance of foxes Vulpes vulpes, area grazed and number of cattle all standardized to a mean = 0 and SD = 1). There was evidence of impacts of nutrients, climate (long-term changes in temperature and precipitation), grazing, mowing and predation on bird populations. We used standard random effects meta-analyses weighted by (N – 3) to quantify these mean effects. There was no significant difference in effect size among species, while mean effect size differed consistently among environmental factors, and the interaction between effect size for species and environmental factors was also significant. Thus, environmental factors affected the different species differently. Mean effect size was the largest at +0.20 for rain, +0.11 for temperature, -0.09 for fox abundance and -0.03 for number of cattle, while there was no significant mean effect for fertilizer, area grazed and year. The negative impact of number of cattle on abundance of waders implied that a management tool actually had a significant negative ... Other/Unknown Material Calidris alpina Philomachus pugnax Vanellus vanellus Limosa limosa Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Land-use Haematopus ostralegus Vanellus vanellus Philomachus pugnax long-term studies Tringa totanus Recurvirostra avocetta temperature Calidris alpina study methods Limosa limosa |
spellingShingle |
Land-use Haematopus ostralegus Vanellus vanellus Philomachus pugnax long-term studies Tringa totanus Recurvirostra avocetta temperature Calidris alpina study methods Limosa limosa Laursen, Karsten Balbontín, Javier Thorup, Ole Haaning Nielsen, Henrik Asferg, Tommy Møller, Anders Pape Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
topic_facet |
Land-use Haematopus ostralegus Vanellus vanellus Philomachus pugnax long-term studies Tringa totanus Recurvirostra avocetta temperature Calidris alpina study methods Limosa limosa |
description |
Environments are rapidly changing due to climate change, land-use, intensive agriculture and the impact of hunting on predator populations. Here we analysed long-term data recorded during 1928-2014 on the size of breeding populations of waders at two large nature reserves in Denmark, Vejlerne and Tipperne, to determine the effects of components of environmental change on breeding populations of waders. Waders are closely associated with coastal marshes and meadows, and such habitats have been reduced extensively during the last century with negative impacts on population trends of waterbirds. Environmental variables and counts of waders were temporally autocorrelated, and hence we used Generalized Least Square (GLS) by incorporating the first order autoregressive correlation structure in the analyses. We attempted to predict the abundance of waders for short-term trends for two nature reserves (35 years) and for long-term trends for one nature reserve (86 years), using precipitation, temperature, nutrients, abundance of foxes Vulpes vulpes, area grazed and number of cattle all standardized to a mean = 0 and SD = 1). There was evidence of impacts of nutrients, climate (long-term changes in temperature and precipitation), grazing, mowing and predation on bird populations. We used standard random effects meta-analyses weighted by (N – 3) to quantify these mean effects. There was no significant difference in effect size among species, while mean effect size differed consistently among environmental factors, and the interaction between effect size for species and environmental factors was also significant. Thus, environmental factors affected the different species differently. Mean effect size was the largest at +0.20 for rain, +0.11 for temperature, -0.09 for fox abundance and -0.03 for number of cattle, while there was no significant mean effect for fertilizer, area grazed and year. The negative impact of number of cattle on abundance of waders implied that a management tool actually had a significant negative ... |
format |
Other/Unknown Material |
author |
Laursen, Karsten Balbontín, Javier Thorup, Ole Haaning Nielsen, Henrik Asferg, Tommy Møller, Anders Pape |
author_facet |
Laursen, Karsten Balbontín, Javier Thorup, Ole Haaning Nielsen, Henrik Asferg, Tommy Møller, Anders Pape |
author_sort |
Laursen, Karsten |
title |
Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
title_short |
Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
title_full |
Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
title_fullStr |
Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
title_full_unstemmed |
Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
title_sort |
data from: multiple components of environmental change drive populations of breeding waders in seminatural grasslands |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.271f74f |
genre |
Calidris alpina Philomachus pugnax Vanellus vanellus Limosa limosa |
genre_facet |
Calidris alpina Philomachus pugnax Vanellus vanellus Limosa limosa |
op_relation |
https://doi.org/10.1002/ece3.4514 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.271f74f oai:zenodo.org:5011581 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.271f74f10.1002/ece3.4514 |
_version_ |
1809904466170740736 |