Evaluation of the Efficacy of Florida Key Deer Translocations

Parker, Israel D.; Watts, Dominique E.; Lopez, Roel R.; Silvy, Nova J.; Davis, Donald S.; McCleery, Robert A.; Frank, Philip A.

doi:10.2193/2007-025

Cited by 22 publications

(16 citation statements)

References 25 publications

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“…Studies have shown that the decision to disperse or remain may depend on the release strategy, soft versus hard release (Carrie et al, 1996;Tuberville et al, 2005;Parker et al, 2008) although this may not apply to all species (Hardman & Moro, 2006), and all individuals in our study underwent an identical hard release. Dispersal may also depend on the perceived suitability of the new habitat (Bradley et al, 2005) but, although we did not assess variables of habitat quality, in this study, the release sites were essentially identical in vegetation and scrub cover as compared with the capture site habitat; in addition, the same main release site (11) was used both years.…”

Section: Discussionmentioning

confidence: 77%

What happens to translocated game birds that ‘disappear’?

Dickens

Delehanty

Reed

et al. 2009

Animal Conservation

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The ultimate goal of most translocation efforts is to create a self-sustaining wild population of a species deliberately moved from one part of their range to another. As follow-up of a translocation attempt is often difficult, causes for failure are relatively unknown. Dispersal away from the release site is one potential source of failure because it decreases the likelihood of the released population establishing itself post-translocation. In this study, we used chukar Alectoris chukar as a surrogate for translocated game birds in order to conduct a large-scale experimental study. We observed that these desert-adapted birds demonstrate a strong fidelity for specific water sources. We also report the propensity for the translocated individuals to either disperse and return to their original water source site or remain at the release site. During two field seasons, we observed opposing behaviors such that the proportion of individuals returning to the capture site, versus those remaining at the release site, shifted between years. We analyzed this change between the years as well as within the years to assess the potential underlying causes such as translocated distance, differences in rainfall between seasons and water source type. We concluded that homing behavior was strong in this non-migratory bird species and that strength of this homing behavior varied, potentially due to conditions surrounding the limiting resource, water availability. The large-scale, original data presented here may help to explain why some releases result in a successfully established population while other releases result in widely dispersed individuals.

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Section: Discussionmentioning

confidence: 77%

What happens to translocated game birds that ‘disappear’?

Dickens

Delehanty

Reed

et al. 2009

Animal Conservation

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“…The large (50 m perimeter) open-top cage situated at the release site provides an opportunity for the slow lorises to acclimatise to the new release environment and allows time to recover from the stress of transportation. This 'soft release' or 'delayed-release' technique has been found to influence success in translocations in other species (Bradley et al 2005, Parker et al 2008, but not in all cases (Hardman & Moro 2006), and suggests that certain successful techniques are often species or site specific.…”

Section: Discussionmentioning

confidence: 95%

Compassionate conservation, rehabilitation and translocation of Indonesian slow lorises

Moore¹,

Wihermanto²,

Nekaris³

2014

Endang. Species. Res.

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With the number of threatened species in rescue centres rising, scientific reports on the functioning and success of such centres is essential. Compassionate conservation tries to bridge the gap between animal welfare advocates and conservation biologists, recognising the benefits of preserving a species and its individuals. A case in point is that of Indonesia's threatened slow lorises Nycticebus spp., where illegal trade is decimating wild populations of these primates. We present 4 yr of data from Ciapus Primate Centre in Indonesia, which received 180 slow lorises between 2008 and 2011. We show that > 85% of these primates were unsuitable for reintroduction; 23 slow lorises that were deemed suitable for reintroduction were released to the wild between 2010 and 2013 and were followed with radio tracking. Eleven of them died (on average 76 d post-release), 1 was recaptured (148 d post-release), 6 are no longer being monitored (after, on average, 263 d post-release) and their status is unknown, and 5 are still being monitored (average 226 d post-release, as of December 2013). The challenges posed by work with slow lorises in the Ciapus Primate Centre over these 4 yr, with release success highly variable, show that even with concerted effort, rescue centres need to consider alternative options. We review such options, considering the pros and cons of euthanasia, life in captivity and reintroduction to the wild. We conclude that in today's global conservation crisis, it can only be beneficial to combine the expertise of animal welfare practitioners and conservation biologists.

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“…However, for mammals, translocated Dormice ( Muscardinus avellanarius ) (Bright & Morris 1994), European Hares ( Lepus europaeus ) (Ferretti et al. 2010) and Florida Key Deer ( Odocoileus virginianus clavium ) (Parker et al. 2008) dispersed further than residents.…”

Section: Discussionmentioning

confidence: 99%

“…However, moving animals to unfamiliar surroundings may pose significant threats to translocated individuals, influencing the potential success of these conservation programmes. Faced with a novel environment, animals often exhibit significant increases in movements (Parker et al. 2008), apparently associated with unfamiliarity of the environment or searching for a suitable area to inhabit.…”

Section: Introductionmentioning

confidence: 99%

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Translocation of the Eastern Bristlebird 1: radio‐tracking of post‐release movements

Bain¹,

French²,

Baker³

et al. 2012

Eco Management Restoration

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Translocating birds to a new area of habitat to restore or supplement depleted populations may pose a significant threat to the translocated individuals. While for many species, translocated individuals appear to move larger distances than resident animals, species with poor dispersal capacity may be restricted in movements and translocation methods may need to accommodate differences in movements to ensure success. In this study, designed to provide insights to inform our broader programme of translocations in New South Wales, Australia, we investigated post-release movements in the endangered, semi-flightless Eastern Bristlebird (Dasyornis brachypterus). We predicted that movements would be minimal, with few differences between males and females, similar to published information for a resident un-manipulated population. Following the release of 45 birds at a host location at Jervis Bay, NSW, over a 3-year programme, we followed individuals for up to 2 weeks using radio-tracking. The translocated birds had larger maximum movements and moved through much larger home ranges than non-translocated individuals from the resident population. Translocated birds moved 300 m further after release when conspecifics were present. Males moved further than females and tended to have larger home ranges, although average daily displacement did not differ. We concluded that the semi-flightlessness of the species does not result in minimal movements. Release at a small number of locations in the new habitat was considered appropriate for the species, as animals seem to move enough to find new unoccupied areas in a relatively short period. This work provided us with increasing confidence to continue with further translocations. SummaryTranslocating birds to a new area of habitat to restore or supplement depleted populations may pose a significant threat to the translocated individuals. While for many species, translocated individuals appear to move larger distances than resident animals, species with poor dispersal capacity may be restricted in movements and translocation methods may need to accommodate differences in movements to ensure success. In this study, designed to provide insights to inform our broader program of translocations in New South Wales, Australia, we investigated post-release movements in the endangered, semiflightless Eastern Bristlebird (Dasyornis brachypterus). We predicted that movements would be minimal, with few differences between males and females, similar to published information for a resident un-manipulated population. Following the release of 45 birds at a host location at Jervis Bay, NSW, over a three-year programme, we followed individuals for up to two weeks using radio-tracking. The translocated birds had larger maximum movements and moved through much larger home ranges than nontranslocated individuals from the resident population. Translocated birds moved 300 m further after release when conspecifics were present. Males moved further than females and tended to have larger home ranges...

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Evaluation of the Efficacy of Florida Key Deer Translocations

Cited by 22 publications

References 25 publications

What happens to translocated game birds that ‘disappear’?

What happens to translocated game birds that ‘disappear’?

Compassionate conservation, rehabilitation and translocation of Indonesian slow lorises

Translocation of the Eastern Bristlebird 1: radio‐tracking of post‐release movements

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