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

Tweed, Erik J.; Foster, Jeffrey T.; Woodworth, Bethany L.; Oesterle, Paul T.; Kuehler, Cynthia M.; Lieberman, Alan; Powers, Ashley; Whitaker, Kristin; Monahan, William B.; Kellerman, Jherime; Telfer, Tom

doi:10.1016/s0006-3207(02)00175-1

Cited by 60 publications

(54 citation statements)

References 22 publications

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“…Then, post-release monitoring could enhance preexisting models by honing parameter precision and variance estimates, recognizing and correcting biases, and including stochastic and density dependent algorithms. Our model might be employed in exactly such a way during the reintroduction of T. c. cinnamominus to its native habitats on Guam (US Fish and Wildlife Service, 2004), or during the translocation of T. gambieri from Niau to another island in the Tuamotu archipelago, and similar approaches could be used for many other groups (Thibault et al, 2002;Tweed et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

Conservation biology for suites of species: Demographic modeling for Pacific island kingfishers

Kesler

Haig²

2007

Biological Conservation

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Section: Resultsmentioning

confidence: 99%

Conservation biology for suites of species: Demographic modeling for Pacific island kingfishers

Kesler

Haig²

2007

Biological Conservation

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“…This is in contrast to our prediction that individuals would actively search widely through the environment before choosing to settle, thus exhibiting a decrease in search area over time. Indeed, translocated individuals, particularly birds, often display high rates of relatively immediate dispersal away from the release site [20], [66], [72], [73]. The relationship we observed between search area and week is not frequently reported and may be a result of releasing birds in social groups with familiar group members [74], or initial caution by individuals due to the translocation or inexperience in an unfamiliar environment [75], [76], followed by more active search for habitat, and then eventual settlement.…”

Section: Discussionmentioning

confidence: 99%

Habitat Selection and Post-Release Movement of Reintroduced Brown Treecreeper Individuals in Restored Temperate Woodland

Bennett

Doerr

et al. 2012

PLoS ONE

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It is essential to choose suitable habitat when reintroducing a species into its former range. Habitat quality may influence an individual’s dispersal decisions and also ultimately where they choose to settle. We examined whether variation in habitat quality (quantified by the level of ground vegetation cover and the installation of nest boxes) influenced the movement, habitat choice and survival of a reintroduced bird species. We experimentally reintroduced seven social groups (43 individuals) of the brown treecreeper (Climacteris picumnus) into two nature reserves in south-eastern Australia. We radio-tracked 18 brown treecreepers from release in November 2009 until February 2010. We observed extensive movements by individuals irrespective of the release environment or an individual’s gender. This indicated that individuals were capable of dispersing and actively selecting optimum habitat. This may alleviate pressure on wildlife planners to accurately select the most optimum release sites, so long as the species’ requirements are met. There was significant variation in movement between social groups, suggesting that social factors may be a more important influence on movement than habitat characteristics. We found a significant effect of ground vegetation cover on the likelihood of settlement by social groups, with high rates of settlement and survival in dry forests, rather than woodland (where the species typically resides), which has implications for the success of woodland restoration. However, overall the effects of variation in habitat quality were not as strong as we had expected, and resulted in some unpredicted effects such as low survival and settlement in woodland areas with medium levels of ground vegetation cover. The extensive movement by individuals and unforeseen effects of habitat characteristics make it difficult to predict the outcome of reintroductions, the movement behaviour and habitat selection of reintroduced individuals, particularly when based on current knowledge of a species’ ecology.

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“…If the non-breeding status of the Poo´uli changes upon initiation of breeding activity, it's home range size may become reduced, as has been documented for the Hawaii Creeper and Puaiohi (VanderWerf 1998;Tweed et al 2003). Telemetry of released Puaiohi revealed a temporary home range derived of 7.90 ha from kernel analyses (vs. a breeding home range of 1.20 ha), which is compatible with the kernel estimate of 8.44 for Poo´uli, and supports the idea that the three Poo´uli may currently be occupying non-breeding home ranges, in line with their known non-breeding status.…”

Section: Home Range Size and Feeding Ecologymentioning

confidence: 98%

“…Second, the Poo´uli individuals appear to be unusual in that field efforts have repeatedly relocated them all since 1995 (Baker 2001), whereas historical sightings of the Maui Nukupu'u (Hemignathus lucidus affinis), Maui 'Akepa (Loxops coccineus ochraceus), Kaua'i Nukupu'u (Hemignathus lucidus hanapepe), and Ó u( Psittirostra psittacea) could not be repeated during subsequent visits (Reynolds and Snetsinger 2001;Groombridge et al 2004a). Third, current recovery efforts now involve the removal to captivity of the last remaining individuals as a last ditch effort to save this species from extinction, so the next opportunity to study their natural movement patterns will rely on successful restoration of the wild population through captive propagation (Tweed et al 2003;VanderWerf et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Patterns of Spatial use and movement of the Poóuli – a critically endangered Hawaiian honeycreeper

et al. 2006

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The Poo´uli (Melamprosops phaeosoma) is a highly endangered Hawaiian honeycreeper endemic to Maui, and is currently one of the World's rarest birds. Only two wild individuals of this species are now known to exist, and they are restricted to the windward slopes of Haleakala volcano on east Maui. Studies of the more common honeycreepers on the Hawaiian islands describe a diverse array of spatial use and movement patterns, which vary according to specific ecological needs. In contrast, spatial use and movement of Poo´uli are very poorly known, despite continuous field monitoring of all three individuals since 1997. We analyzed annual data by breeding season between 1995 and 2001 for three individuals, and eight days of telemetry data derived from the radio-tracking of one individual in 2002, using GIS and conventional methods, to estimate home range size, and to interpret these data alongside those for other honeycreepers. We estimated mean home range sizes of 8.43 hectares (ha) from annual re-sights using kernel analysis and 2.14 ha using minimum convex polygons, and 8.44 and 3.51 ha respectively from telemetry data. Our estimates conform to those derived for other insectivorous honeycreepers, but indicate that Poo´uli may forage widely to support their diet of forest snails. Our home range size estimates are compatible with estimates of population density for Poo´uli that were derived from field transects between 1975 and 1985, suggesting that such field methods may be a reliable density estimator for rare forest birds.

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

Cited by 60 publications

References 22 publications

Conservation biology for suites of species: Demographic modeling for Pacific island kingfishers

Conservation biology for suites of species: Demographic modeling for Pacific island kingfishers

Habitat Selection and Post-Release Movement of Reintroduced Brown Treecreeper Individuals in Restored Temperate Woodland

Patterns of Spatial use and movement of the Poóuli – a critically endangered Hawaiian honeycreeper

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