Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses
Invasive rats on oceanic islands impact a large number of native species. Control programs, and in cases complete eradication, are used to alleviate these impacts. Basic biological data on rodent biology facilitates the design of management plans, and are particularly required for programmes on trop...
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ftcdlib:qt1c9412w8 2023-05-15T18:05:28+02:00 Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses Ringler, David Le Corre, Matthieu Russell, James 135 - 139 2014-01-01 application/pdf http://www.escholarship.org/uc/item/1c9412w8 english eng eScholarship, University of California qt1c9412w8 http://www.escholarship.org/uc/item/1c9412w8 public Ringler, David; Le Corre, Matthieu; & Russell, James. (2014). Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses. Proceedings of the Vertebrate Pest Conference, 26(26), 135 - 139. doi:10.5070/V426110645. Retrieved from: http://www.escholarship.org/uc/item/1c9412w8 black rats breeding density home range multi-invaded ecosystems Rattus rattus rodent eradication spatially explicit capture-recapture Life Sciences article 2014 ftcdlib https://doi.org/10.5070/V426110645 2019-04-05T22:52:25Z Invasive rats on oceanic islands impact a large number of native species. Control programs, and in cases complete eradication, are used to alleviate these impacts. Basic biological data on rodent biology facilitates the design of management plans, and are particularly required for programmes on tropical islands where they are lacking. Here, we test complex environmental effects and their interactions on two tropical islands (Iles Eparses) that may alter black rat demography, space use dynamics, and inform rodent management. Five years of summer and winter trapping data were analysed using spatially explicit capture-recapture to determine rat population dynamics and calculate rat range size, coupled with spool and line experiments. Variation in demography and individual rat space use is primarily driven by bottom-up effects of seasonal rainfall pulses on habitat, but is altered by island-specific contexts. In the absence of other introduced mammals, rats tend to have stable range overlap throughout the year but seasonal home range size fluctuations associated with rat density. The presence of other introduced mammals causes a more variable response in home range size, although predictable, which we hypothesise to be a behavioural adjustment to fluctuating levels of predation pressure on rats in relation to seasonal influxes of breeding seabirds. We eventually discuss relevance of data for eradication strategies. Article in Journal/Newspaper Rattus rattus University of California: eScholarship Proceedings of the Vertebrate Pest Conference 26 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
English |
topic |
black rats breeding density home range multi-invaded ecosystems Rattus rattus rodent eradication spatially explicit capture-recapture Life Sciences |
spellingShingle |
black rats breeding density home range multi-invaded ecosystems Rattus rattus rodent eradication spatially explicit capture-recapture Life Sciences Ringler, David Le Corre, Matthieu Russell, James Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses |
topic_facet |
black rats breeding density home range multi-invaded ecosystems Rattus rattus rodent eradication spatially explicit capture-recapture Life Sciences |
description |
Invasive rats on oceanic islands impact a large number of native species. Control programs, and in cases complete eradication, are used to alleviate these impacts. Basic biological data on rodent biology facilitates the design of management plans, and are particularly required for programmes on tropical islands where they are lacking. Here, we test complex environmental effects and their interactions on two tropical islands (Iles Eparses) that may alter black rat demography, space use dynamics, and inform rodent management. Five years of summer and winter trapping data were analysed using spatially explicit capture-recapture to determine rat population dynamics and calculate rat range size, coupled with spool and line experiments. Variation in demography and individual rat space use is primarily driven by bottom-up effects of seasonal rainfall pulses on habitat, but is altered by island-specific contexts. In the absence of other introduced mammals, rats tend to have stable range overlap throughout the year but seasonal home range size fluctuations associated with rat density. The presence of other introduced mammals causes a more variable response in home range size, although predictable, which we hypothesise to be a behavioural adjustment to fluctuating levels of predation pressure on rats in relation to seasonal influxes of breeding seabirds. We eventually discuss relevance of data for eradication strategies. |
format |
Article in Journal/Newspaper |
author |
Ringler, David Le Corre, Matthieu Russell, James |
author_facet |
Ringler, David Le Corre, Matthieu Russell, James |
author_sort |
Ringler, David |
title |
Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses |
title_short |
Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses |
title_full |
Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses |
title_fullStr |
Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses |
title_full_unstemmed |
Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses |
title_sort |
invasive rat research and management on tropical islands: a case study in the iles eparses |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
http://www.escholarship.org/uc/item/1c9412w8 |
op_coverage |
135 - 139 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Ringler, David; Le Corre, Matthieu; & Russell, James. (2014). Invasive Rat Research and Management on Tropical Islands: A Case Study in the Iles Eparses. Proceedings of the Vertebrate Pest Conference, 26(26), 135 - 139. doi:10.5070/V426110645. Retrieved from: http://www.escholarship.org/uc/item/1c9412w8 |
op_relation |
qt1c9412w8 http://www.escholarship.org/uc/item/1c9412w8 |
op_rights |
public |
op_doi |
https://doi.org/10.5070/V426110645 |
container_title |
Proceedings of the Vertebrate Pest Conference |
container_volume |
26 |
_version_ |
1766176947704954880 |