Survival, dispersal, and home-range establishment of reintroduced captive-bred puaiohi, Myadestes palmeri

Tweed, E. J.; Foster, J. T.; Woodworth, B. L.; Oesterle, P.; Kuehler, C.; Lieberman, A. A.; Powers, A. T.; Whitaker, K.; Monahan, W. B.; Kellerman, J.; Telfer, T.

Abstract:

We monitored the survival, dispersal, and home-range establishment of captive-bred, reintroduced puaiohi Myadestes palmeri, a critically endangered thrush endemic to the island of Kauai. Fourteen captive-bred, juvenile birds were released from hacktowers in January-February 1999 and monitored for 8-10 weeks using radiotelemetry. All 14 birds (100%) survived to 56 days post-release. Two birds (14.3%) dispersed greater than 3 km from release site within 1 day of release. The remaining birds settled within 1 week and established either temporary home-ranges (mean area = 7.9??12.0 ha, range 0.4-31.9) or breeding home-ranges (mean area 1.2??0.34 ha, range 0.8-1.6). Temporary home ranges were abandonded by the beginning of the breeding season, and ultimately 6 of the 14 birds (43%) established breeding home ranges in the release area. The high survival rate bodes well for establishing additional populations through captive breeding and release; however, the 57% dispersal rate out of the target area means that several releases of birds may be necessary in order to repopulate a given drainage. Furthermore, observed dispersal and gene flow between the reintroduced and wild populations have important implications for management of the captive flock. Published by Elsevier Science Ltd.

Genre:

Article

ProdID:

70025742

Citation Author:

Tweed, E. J.; Foster, J. T.; Woodworth, B. L.; Oesterle, P.; Kuehler, C.; Lieberman, A. A.; Powers, A. T.; Whitaker, K.; Monahan, W. B.; Kellerman, J.; Telfer, T.

Citation Contributing Office:

Citation Datum:

Citation Day:

Citation Edition:

Citation Editor:

Citation End Page:

Citation Issue:

Citation Keywords:

Citation Language:

English

Citation Larger Work Title:

Biological Conservation

Citation LatN:

Citation LatS:

Citation LonE:

Citation LonW:

Citation Month:

Citation No Pagination:

Citation Number Of Pages:

Citation Online Only Flag:

Citation Phsyical Description:

Citation Projection:

Citation Public Comments:

Citation Publisher:

Citation Series:

Citation Series Code:

Citation Series Number:

Citation Search Results Text:

Survival, dispersal, and home-range establishment of reintroduced captive-bred puaiohi, Myadestes palmeri; 2003; Article; Journal; Biological Conservation; Tweed, E. J.; Foster, J. T.; Woodworth, B. L.; Oesterle, P.; Kuehler, C.; Lieberman, A. A.; Powers, A. T.; Whitaker, K.; Monahan, W. B.; Kellerman, J.; Telfer, T.