Learning from long time series of harvest and population data : Swedish lessons for European goose management
Goose management in Europe is faced by multiple challenges, as some species are declining and in need of conservation actions, while other populations have become very abundant, resulting in calls for increased harvest. Sweden has long-Term series of harvest data and counts of breeding and autumn-st...
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Nordic Council of Wildlife Research
2021
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Online Access: | https://lup.lub.lu.se/record/7890d443-fbf3-44dd-84c0-a196fa8d29f9 https://doi.org/10.2981/wlb.00733 |
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ftulundlup:oai:lup.lub.lu.se:7890d443-fbf3-44dd-84c0-a196fa8d29f9 2023-05-15T15:48:55+02:00 Learning from long time series of harvest and population data : Swedish lessons for European goose management Liljebäck, Niklas Bergqvist, Göran Elmberg, Johan Haas, Fredrik Nilsson, Leif Lindström, Åke Månsson, Johan 2021-01-01 https://lup.lub.lu.se/record/7890d443-fbf3-44dd-84c0-a196fa8d29f9 https://doi.org/10.2981/wlb.00733 eng eng Nordic Council of Wildlife Research https://lup.lub.lu.se/record/7890d443-fbf3-44dd-84c0-a196fa8d29f9 http://dx.doi.org/10.2981/wlb.00733 scopus:85110272529 Wildlife Biology; 2021(1), no wlb.00733 (2021) ISSN: 0909-6396 Ecology Conservation Goose populations Harvest Management Monitoring programs Population trajectories Time series contributiontojournal/systematicreview info:eu-repo/semantics/article text 2021 ftulundlup https://doi.org/10.2981/wlb.00733 2023-02-01T23:38:53Z Goose management in Europe is faced by multiple challenges, as some species are declining and in need of conservation actions, while other populations have become very abundant, resulting in calls for increased harvest. Sweden has long-Term series of harvest data and counts of breeding and autumn-staging geese. We used national data (indices) for greylag goose, bean goose and Canada goose to study shifts in temporal trends and correlative patterns, and to infer possible causal links between harvest and population trends. Our study provides an opportunity to guide management given the data collected within the present monitoring, as well as to suggest improvements for future data collection. The populations of greylag and Canada geese increased in Sweden 1979-2018, but this long-Term trend included a recent decrease in the latter species. Bean goose breeding index decreased, whilst staging numbers and harvest varied with no clear long-Term trend. For Canada goose, our analysis suggests that harvest may affect population growth negatively. For bean goose and greylag goose we could not detect any effect of harvest on autumn counts the following year. We find that the present data and analysis of coherence may suffice as basis for decisions for the current management situation in Sweden with its rather unspecific goals for greylag (very abundant) and Canada goose (invasive species) populations. However, for management of bean geese, with international concerns of over harvest, data lack crucial information. For future management challenges, with more explicit goals, for all goose species we advocate information that is more precise. Data such as hunting effort, age-structure of goose populations and mark-recapture data to estimate survival and population size, is needed to feed predictive population models guiding future Swedish and European goose management. Article in Journal/Newspaper Canada Goose Lund University Publications (LUP) Canada Wildlife Biology 2021 1 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Conservation Goose populations Harvest Management Monitoring programs Population trajectories Time series |
spellingShingle |
Ecology Conservation Goose populations Harvest Management Monitoring programs Population trajectories Time series Liljebäck, Niklas Bergqvist, Göran Elmberg, Johan Haas, Fredrik Nilsson, Leif Lindström, Åke Månsson, Johan Learning from long time series of harvest and population data : Swedish lessons for European goose management |
topic_facet |
Ecology Conservation Goose populations Harvest Management Monitoring programs Population trajectories Time series |
description |
Goose management in Europe is faced by multiple challenges, as some species are declining and in need of conservation actions, while other populations have become very abundant, resulting in calls for increased harvest. Sweden has long-Term series of harvest data and counts of breeding and autumn-staging geese. We used national data (indices) for greylag goose, bean goose and Canada goose to study shifts in temporal trends and correlative patterns, and to infer possible causal links between harvest and population trends. Our study provides an opportunity to guide management given the data collected within the present monitoring, as well as to suggest improvements for future data collection. The populations of greylag and Canada geese increased in Sweden 1979-2018, but this long-Term trend included a recent decrease in the latter species. Bean goose breeding index decreased, whilst staging numbers and harvest varied with no clear long-Term trend. For Canada goose, our analysis suggests that harvest may affect population growth negatively. For bean goose and greylag goose we could not detect any effect of harvest on autumn counts the following year. We find that the present data and analysis of coherence may suffice as basis for decisions for the current management situation in Sweden with its rather unspecific goals for greylag (very abundant) and Canada goose (invasive species) populations. However, for management of bean geese, with international concerns of over harvest, data lack crucial information. For future management challenges, with more explicit goals, for all goose species we advocate information that is more precise. Data such as hunting effort, age-structure of goose populations and mark-recapture data to estimate survival and population size, is needed to feed predictive population models guiding future Swedish and European goose management. |
format |
Article in Journal/Newspaper |
author |
Liljebäck, Niklas Bergqvist, Göran Elmberg, Johan Haas, Fredrik Nilsson, Leif Lindström, Åke Månsson, Johan |
author_facet |
Liljebäck, Niklas Bergqvist, Göran Elmberg, Johan Haas, Fredrik Nilsson, Leif Lindström, Åke Månsson, Johan |
author_sort |
Liljebäck, Niklas |
title |
Learning from long time series of harvest and population data : Swedish lessons for European goose management |
title_short |
Learning from long time series of harvest and population data : Swedish lessons for European goose management |
title_full |
Learning from long time series of harvest and population data : Swedish lessons for European goose management |
title_fullStr |
Learning from long time series of harvest and population data : Swedish lessons for European goose management |
title_full_unstemmed |
Learning from long time series of harvest and population data : Swedish lessons for European goose management |
title_sort |
learning from long time series of harvest and population data : swedish lessons for european goose management |
publisher |
Nordic Council of Wildlife Research |
publishDate |
2021 |
url |
https://lup.lub.lu.se/record/7890d443-fbf3-44dd-84c0-a196fa8d29f9 https://doi.org/10.2981/wlb.00733 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Canada Goose |
genre_facet |
Canada Goose |
op_source |
Wildlife Biology; 2021(1), no wlb.00733 (2021) ISSN: 0909-6396 |
op_relation |
https://lup.lub.lu.se/record/7890d443-fbf3-44dd-84c0-a196fa8d29f9 http://dx.doi.org/10.2981/wlb.00733 scopus:85110272529 |
op_doi |
https://doi.org/10.2981/wlb.00733 |
container_title |
Wildlife Biology |
container_volume |
2021 |
container_issue |
1 |
_version_ |
1766384009726656512 |