Predicting Effects of Water Regime Changes on Waterbirds: Insights from Staging Swans

This data was imported from PubMed:

Authors: Nolet, B.A., Gyimesi, A., van Krimpen, R.R.D., de Boer, W.F. and Stillman, R.A.

http://eprints.bournemouth.ac.uk/23426/

Journal: PLoS One

Volume: 11

Issue: 2

Pages: e0147340

eISSN: 1932-6203

DOI: 10.1371/journal.pone.0147340

Predicting the environmental impact of a proposed development is notoriously difficult, especially when future conditions fall outside the current range of conditions. Individual-based approaches have been developed and applied to predict the impact of environmental changes on wintering and staging coastal bird populations. How many birds make use of staging sites is mostly determined by food availability and accessibility, which in the case of many waterbirds in turn is affected by water level. Many water systems are regulated and water levels are maintained at target levels, set by management authorities. We used an individual-based modelling framework (MORPH) to analyse how different target water levels affect the number of migratory Bewick's swans Cygnus columbianus bewickii staging at a shallow freshwater lake (Lauwersmeer, the Netherlands) in autumn. As an emerging property of the model, we found strong non-linear responses of swan usage to changes in water level, with a sudden drop in peak numbers as well as bird-days with a 0.20 m rise above the current target water level. Such strong non-linear responses are probably common and should be taken into account in environmental impact assessments.

This data was imported from Scopus:

Authors: Nolet, B.A., Gyimesi, A., Van Krimpen, R.R.D., De Boer, W.F. and Stillman, R.A.

http://eprints.bournemouth.ac.uk/23426/

Journal: PLoS ONE

Volume: 11

Issue: 2

eISSN: 1932-6203

DOI: 10.1371/journal.pone.0147340

© 2016 Nolet et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Predicting the environmental impact of a proposed development is notoriously difficult, especially when future conditions fall outside the current range of conditions. Individualbased approaches have been developed and applied to predict the impact of environmental changes on wintering and staging coastal bird populations. How many birds make use of staging sites is mostly determined by food availability and accessibility, which in the case of many waterbirds in turn is affected by water level. Many water systems are regulated and water levels are maintained at target levels, set by management authorities. We used an individual-based modelling framework (MORPH) to analyse how different target water levels affect the number of migratory Bewick's swans Cygnus columbianus bewickii staging at a shallow freshwater lake (Lauwersmeer, the Netherlands) in autumn. As an emerging property of the model, we found strong non-linear responses of swan usage to changes in water level, with a sudden drop in peak numbers as well as bird-days with a 0.20 m rise above the current target water level. Such strong non-linear responses are probably common and should be taken into account in environmental impact assessments.

This source preferred by Richard Stillman

This data was imported from Web of Science (Lite):

Authors: Nolet, B.A., Gyimesi, A., van Krimpen, R.R.D., de Boer, W.F. and Stillman, R.A.

http://eprints.bournemouth.ac.uk/23426/

Journal: PLOS ONE

Volume: 11

Issue: 2

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0147340

This data was imported from Europe PubMed Central:

Authors: Nolet, B.A., Gyimesi, A., van Krimpen, R.R., de Boer, W.F. and Stillman, R.A.

http://eprints.bournemouth.ac.uk/23426/

Journal: PloS one

Volume: 11

Issue: 2

Pages: e0147340

eISSN: 1932-6203

Predicting the environmental impact of a proposed development is notoriously difficult, especially when future conditions fall outside the current range of conditions. Individual-based approaches have been developed and applied to predict the impact of environmental changes on wintering and staging coastal bird populations. How many birds make use of staging sites is mostly determined by food availability and accessibility, which in the case of many waterbirds in turn is affected by water level. Many water systems are regulated and water levels are maintained at target levels, set by management authorities. We used an individual-based modelling framework (MORPH) to analyse how different target water levels affect the number of migratory Bewick's swans Cygnus columbianus bewickii staging at a shallow freshwater lake (Lauwersmeer, the Netherlands) in autumn. As an emerging property of the model, we found strong non-linear responses of swan usage to changes in water level, with a sudden drop in peak numbers as well as bird-days with a 0.20 m rise above the current target water level. Such strong non-linear responses are probably common and should be taken into account in environmental impact assessments.

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