Alien predation in wetlands : the Raccoon dog and waterbird breeding success
Alien predators are known to potentially strongly affect their prey populations. We studied the impact of raccoon dogs (Nyctereutes procyonoides) on waterbird breeding success in eight semi-urban wetlands in Finland. We manipulated raccoon dog density in two wetlands by removing individuals (2002 pr...
Published in: | BALTIC FORESTRY |
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Language: | English |
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Baltic Forestry
2022
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Online Access: | http://hdl.handle.net/10138/339877 https://doi.org/10.46490/vol25iss2pp228 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/339877 2023-08-20T04:10:18+02:00 Alien predation in wetlands : the Raccoon dog and waterbird breeding success Nummi, Petri Väänänen, Veli-Matti Pekkarinen, Antti-Juhani Eronen, Visa Mikkola-Roos, Markku Nurmi, Jarkko Rautiainen, Antti Rusanen, Pekka 2022-02-07T17:16:05Z application/pdf http://hdl.handle.net/10138/339877 https://doi.org/10.46490/vol25iss2pp228 eng eng Baltic Forestry Baltic Forestry 25(2), 228-237 1392-1355 Nummi, P., Väänänen, V-M., Pekkarinen, A-J., Eronen, V., Mikkola-Roos, M., Nurmi, J., Rautiainen, A., & Rusanen, P. (2019). Alien predation in wetlands - the Raccoon dog and waterbird breeding success. Baltic Forestry, 25(2), 228-237. https://doi.org/10.46490/vol25iss2pp228 https://doi.org/10.46490/vol25iss2pp228 Suomen ympäristökeskus http://hdl.handle.net/10138/339877 CC BY 4.0 openAccess ducks invasive species lapwing nest predation experiment Nyctereutes procyonoides predator removal breeding beasts of prey wetlands Raccoon dog ankka tulokaslajit vierasperäiset lajit töyhtöhyyppä petoeläimet pedot jalostus kosteikot Article 2022 ftunivhelsihelda https://doi.org/10.46490/vol25iss2pp228 2023-07-28T06:35:34Z Alien predators are known to potentially strongly affect their prey populations. We studied the impact of raccoon dogs (Nyctereutes procyonoides) on waterbird breeding success in eight semi-urban wetlands in Finland. We manipulated raccoon dog density in two wetlands by removing individuals (2002 protection year, 2003 and 2004 removal years). We additionally performed nest predation experiments. We monitored raccoon dog density, estimated hunting bag size and observed waterbird breeding success. Our hypothesis predicts that the omnivorous raccoon dog plays a role in waterbird breeding success by depredating nests. Our experiments shown that the raccoon dog hunting bag in eutrophic wetlands may be large, as we removed 8.6–20.0 animals per km2. Both our nest predation experiment and field data indicated that raccoon dogs affect the breeding success of waterbirds. We found a significant relationship between raccoon dog density index and predation rate of the artificial nests, but not between red fox (Vulpes vulpes) density and predation on artificial nests. We did not find an association between raccoon dog abundance and the breeding success of mallards (Anas platyrhynchos) and great crested grebes (Podiceps cristatus). However, our study shows that birds species with different breeding strategies – e.g. great crested grebe, mute swan (Cygnus olor), mallard, Eurasian wigeon (Mareca penelope), coot (Fulica atra), lapwing (Vanellus vanellus) and marsh harrier (Circus aeruginosus) – when considered together showed higher breeding success both in 2003 and 2004 when compared to breeding success before removal. There was, however, variation in how strongly the species responded to raccoon dog removal. Our results indicate that the removal of alien raccoon dogs can be an important tool in wetland management. Article in Journal/Newspaper Vanellus vanellus Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto Olor ENVELOPE(88.531,88.531,69.600,69.600) BALTIC FORESTRY 25 2 228 237 |
institution |
Open Polar |
collection |
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
ducks invasive species lapwing nest predation experiment Nyctereutes procyonoides predator removal breeding beasts of prey wetlands Raccoon dog ankka tulokaslajit vierasperäiset lajit töyhtöhyyppä petoeläimet pedot jalostus kosteikot |
spellingShingle |
ducks invasive species lapwing nest predation experiment Nyctereutes procyonoides predator removal breeding beasts of prey wetlands Raccoon dog ankka tulokaslajit vierasperäiset lajit töyhtöhyyppä petoeläimet pedot jalostus kosteikot Nummi, Petri Väänänen, Veli-Matti Pekkarinen, Antti-Juhani Eronen, Visa Mikkola-Roos, Markku Nurmi, Jarkko Rautiainen, Antti Rusanen, Pekka Alien predation in wetlands : the Raccoon dog and waterbird breeding success |
topic_facet |
ducks invasive species lapwing nest predation experiment Nyctereutes procyonoides predator removal breeding beasts of prey wetlands Raccoon dog ankka tulokaslajit vierasperäiset lajit töyhtöhyyppä petoeläimet pedot jalostus kosteikot |
description |
Alien predators are known to potentially strongly affect their prey populations. We studied the impact of raccoon dogs (Nyctereutes procyonoides) on waterbird breeding success in eight semi-urban wetlands in Finland. We manipulated raccoon dog density in two wetlands by removing individuals (2002 protection year, 2003 and 2004 removal years). We additionally performed nest predation experiments. We monitored raccoon dog density, estimated hunting bag size and observed waterbird breeding success. Our hypothesis predicts that the omnivorous raccoon dog plays a role in waterbird breeding success by depredating nests. Our experiments shown that the raccoon dog hunting bag in eutrophic wetlands may be large, as we removed 8.6–20.0 animals per km2. Both our nest predation experiment and field data indicated that raccoon dogs affect the breeding success of waterbirds. We found a significant relationship between raccoon dog density index and predation rate of the artificial nests, but not between red fox (Vulpes vulpes) density and predation on artificial nests. We did not find an association between raccoon dog abundance and the breeding success of mallards (Anas platyrhynchos) and great crested grebes (Podiceps cristatus). However, our study shows that birds species with different breeding strategies – e.g. great crested grebe, mute swan (Cygnus olor), mallard, Eurasian wigeon (Mareca penelope), coot (Fulica atra), lapwing (Vanellus vanellus) and marsh harrier (Circus aeruginosus) – when considered together showed higher breeding success both in 2003 and 2004 when compared to breeding success before removal. There was, however, variation in how strongly the species responded to raccoon dog removal. Our results indicate that the removal of alien raccoon dogs can be an important tool in wetland management. |
format |
Article in Journal/Newspaper |
author |
Nummi, Petri Väänänen, Veli-Matti Pekkarinen, Antti-Juhani Eronen, Visa Mikkola-Roos, Markku Nurmi, Jarkko Rautiainen, Antti Rusanen, Pekka |
author_facet |
Nummi, Petri Väänänen, Veli-Matti Pekkarinen, Antti-Juhani Eronen, Visa Mikkola-Roos, Markku Nurmi, Jarkko Rautiainen, Antti Rusanen, Pekka |
author_sort |
Nummi, Petri |
title |
Alien predation in wetlands : the Raccoon dog and waterbird breeding success |
title_short |
Alien predation in wetlands : the Raccoon dog and waterbird breeding success |
title_full |
Alien predation in wetlands : the Raccoon dog and waterbird breeding success |
title_fullStr |
Alien predation in wetlands : the Raccoon dog and waterbird breeding success |
title_full_unstemmed |
Alien predation in wetlands : the Raccoon dog and waterbird breeding success |
title_sort |
alien predation in wetlands : the raccoon dog and waterbird breeding success |
publisher |
Baltic Forestry |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/339877 https://doi.org/10.46490/vol25iss2pp228 |
long_lat |
ENVELOPE(88.531,88.531,69.600,69.600) |
geographic |
Olor |
geographic_facet |
Olor |
genre |
Vanellus vanellus |
genre_facet |
Vanellus vanellus |
op_relation |
Baltic Forestry 25(2), 228-237 1392-1355 Nummi, P., Väänänen, V-M., Pekkarinen, A-J., Eronen, V., Mikkola-Roos, M., Nurmi, J., Rautiainen, A., & Rusanen, P. (2019). Alien predation in wetlands - the Raccoon dog and waterbird breeding success. Baltic Forestry, 25(2), 228-237. https://doi.org/10.46490/vol25iss2pp228 https://doi.org/10.46490/vol25iss2pp228 Suomen ympäristökeskus http://hdl.handle.net/10138/339877 |
op_rights |
CC BY 4.0 openAccess |
op_doi |
https://doi.org/10.46490/vol25iss2pp228 |
container_title |
BALTIC FORESTRY |
container_volume |
25 |
container_issue |
2 |
container_start_page |
228 |
op_container_end_page |
237 |
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1774724383069175808 |