Day-time roost patterns of new and previously translocated North Island Brown Kiwi (Apteryx mantelli)
Fraser, Diane; Alach, J.M.; Adams, Nigel; Aguilar, Glenn
View fulltext online
Citation:Fraser, D.L., Alach, J.M., Adams, N.J., & Aguilar, G.D. (2023). Day-time roost patterns of new and previously translocated North Island Brown Kiwi (Apteryx mantelli). Diversity, 15, 1-11. https:doi.org/10.3390/d15020190
Permanent link to Research Bank record:https://hdl.handle.net/10652/5885
Information on the day-time roost areas of North Island brown kiwi (NIBK) (Apteryx mantelli), particularly post-translocation, is limited. This study aimed to determine the day-time roost areas of newly translocated NIBK and compare these with birds that had established from a translocation in the previous year. Radio telemetry was used to monitor sub-adult NIBK in the first three weeks post-translocation simultaneously with birds released in the previous year. The data from 15 birds (nine translocated in 2014 and six translocated in 2013) were used to calculate the area over which roost sites were distributed. Areas were estimated using Minimum Convex Polygon (MCP, Ha) and 50 percentile kernel density estimation (KDE, Ha). No significant difference in MCP was determined between newly translocated 2014 birds (21.3 Ha, SE 7.92) and those translocated in 2013 (22.85 Ha, SE 10.84) or between KDE50 for 2013 birds (16.30 Ha, SE 7.44) compared with 2014 birds (20.66 Ha, SE 8.29). Within the first three weeks post-translocation, most of the 2014 birds remained within the vicinity of their release site, which may be due to a combination of suitable habitat/roost sites and the ‘anchoring’ effect of previously established 2013 birds. This study provides new information on roost areas of newly translocated NIBK and highlights the importance of post-translocation monitoring.
Keywords:New Zealand, kiwi, North Island brown kiwi (Apteryx mantelli), roost area, translocation, monitoring, telemetry
ANZSRC Field of Research:410401 Conservation and biodiversity
Available Online at:https://www.mdpi.com/1424-2818/15/2/190
ORCID Author Profiles
Rights:This digital work is protected by copyright. It may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use. These documents or images may be used for research or private study purposes. Whether they can be used for any other purpose depends upon the Copyright Notice above. You will recognise the author's and publishers rights and give due acknowledgement where appropriate.
MetadataShow detailed record
This item appears in
The following license files are associated with this item: