SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand
Abstract: Five-minute bird counts were made on Rangitoto Island in 1998 and 1999, 8 and 9 years after the start, and 1 and 2 years after the completion of a 7-year programme that resulted in eradication of the introduced brushtail possum (Trichosurus vulpecula) and brushtailed rock wallaby (Petrogal...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.178.9233 2023-05-15T18:05:23+02:00 SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand Eric B. Spurr Ra H. Anderson The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.178.9233 http://www.lincoln.ac.nz/PageFiles/7074/3478_SpurrAnderson20_s10667.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.178.9233 http://www.lincoln.ac.nz/PageFiles/7074/3478_SpurrAnderson20_s10667.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.lincoln.ac.nz/PageFiles/7074/3478_SpurrAnderson20_s10667.pdf bird abundance bird species diversity brushtail possums brushtailed rock wallabies eradication habitat improvement sodium monofluoroacetate text ftciteseerx 2016-01-07T16:21:54Z Abstract: Five-minute bird counts were made on Rangitoto Island in 1998 and 1999, 8 and 9 years after the start, and 1 and 2 years after the completion of a 7-year programme that resulted in eradication of the introduced brushtail possum (Trichosurus vulpecula) and brushtailed rock wallaby (Petrogale penicillata). These were compared with counts made in 1990 (immediately before the start of the programme), to assess whether bird species diversity and abundance had increased as a result of the eradications. The number of bird species detected in 1998/99 was similar to 1990. Five-minute counts of all species except silvereye (Zosterops lateralis) and tui (Prosthemadera novaeseelandiae) were also similar in 1998/99 to those in 1990. Silvereye and tui counts increased significantly. This is most likely a response to increased flowering of pohutukawa (Metrosideros excelsa) and rewarewa (Knightia excelsa) as a result of possum (and wallaby) eradication. The most likely reason for no apparent increase in the abundance of other bird species is the continued presence of predators, especially ship rats (Rattus rattus), cats (Felis catus), and stoats (Mustela erminea). ____________________________________________________________________________________________________________________________________ Text Rattus rattus Unknown New Zealand |
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Open Polar |
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Unknown |
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English |
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bird abundance bird species diversity brushtail possums brushtailed rock wallabies eradication habitat improvement sodium monofluoroacetate |
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bird abundance bird species diversity brushtail possums brushtailed rock wallabies eradication habitat improvement sodium monofluoroacetate Eric B. Spurr Ra H. Anderson SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand |
topic_facet |
bird abundance bird species diversity brushtail possums brushtailed rock wallabies eradication habitat improvement sodium monofluoroacetate |
description |
Abstract: Five-minute bird counts were made on Rangitoto Island in 1998 and 1999, 8 and 9 years after the start, and 1 and 2 years after the completion of a 7-year programme that resulted in eradication of the introduced brushtail possum (Trichosurus vulpecula) and brushtailed rock wallaby (Petrogale penicillata). These were compared with counts made in 1990 (immediately before the start of the programme), to assess whether bird species diversity and abundance had increased as a result of the eradications. The number of bird species detected in 1998/99 was similar to 1990. Five-minute counts of all species except silvereye (Zosterops lateralis) and tui (Prosthemadera novaeseelandiae) were also similar in 1998/99 to those in 1990. Silvereye and tui counts increased significantly. This is most likely a response to increased flowering of pohutukawa (Metrosideros excelsa) and rewarewa (Knightia excelsa) as a result of possum (and wallaby) eradication. The most likely reason for no apparent increase in the abundance of other bird species is the continued presence of predators, especially ship rats (Rattus rattus), cats (Felis catus), and stoats (Mustela erminea). ____________________________________________________________________________________________________________________________________ |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Eric B. Spurr Ra H. Anderson |
author_facet |
Eric B. Spurr Ra H. Anderson |
author_sort |
Eric B. Spurr |
title |
SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand |
title_short |
SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand |
title_full |
SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand |
title_fullStr |
SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand |
title_full_unstemmed |
SHORT COMMUNICATION Bird species diversity and abundance before and after eradication of possums and wallabies on Rangitoto Island, Hauraki Gulf, New Zealand |
title_sort |
short communication bird species diversity and abundance before and after eradication of possums and wallabies on rangitoto island, hauraki gulf, new zealand |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.178.9233 http://www.lincoln.ac.nz/PageFiles/7074/3478_SpurrAnderson20_s10667.pdf |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
http://www.lincoln.ac.nz/PageFiles/7074/3478_SpurrAnderson20_s10667.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.178.9233 http://www.lincoln.ac.nz/PageFiles/7074/3478_SpurrAnderson20_s10667.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766176859888812032 |