Moving house: long-term dynamics of corticosterone secretion are unaltered in translocated populations of a rare reptile (the tuatara,<i>Sphenodon punctatus</i>)

Anderson, Lindsay; Cree, Alison; Towns, David R.; Nelson, Nicola J.

doi:10.1093/conphys/cov014

Cited by 6 publications

(2 citation statements)

References 73 publications

(95 reference statements)

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“…Information about woylies' physiological response to population density, intraspecific and inter-specific competition for resources, predation and seasonal changes would also improve our understanding of the relative significance of potential stressors. To determine whether higher FCM after translocation is indicative of biologically significant HPA axis dysfunction, translocated and resident animals could be exposed to experimental stressors, such as a standardised capture-restraint 'hold' (Anderson et al 2015) or administration of exogenous agents to assess HPA axis negative feedback (Dickens et al 2010). …”

Section: The Influence Of Translocation On Woylie Stress Physiologymentioning

confidence: 99%

Evaluating Stress Physiology and Parasite Infection Parameters in the Translocation of Critically Endangered Woylies (Bettongia penicillata)

et al. 2017

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Translocation can be stressful for wildlife. Stress may be important in fauna translocation because it has been suggested that it can exacerbate the impact of infectious disease on translocated wildlife.However, few studies explore this hypothesis by measuring stress physiology and infection indices in parallel during wildlife translocations. We analysed faecal cortisol metabolite (FCM) concentration and endoparasite parameters (nematodes, coccidians and haemoparasites) in a critically endangered marsupial, the woylie (Bettongia penicillata), 1-3 months prior to translocation, at translocation, and 6 months later. FCM for both translocated and resident woylies was significantly higher after translocation compared to before or at translocation. In addition, body condition decreased with increasing FCM after translocation. These patterns in host condition and physiology may be indicative of translocation stress or stress associated with factors independent of the translocation. Parasite factors also influenced FCM in translocated woylies. When haemoparasites were detected, there was a significant negative relationship between strongyle egg count and FCM. This may reflect the influence of glucocorticoids on the immune response to micro-and macro-parasites. Our results indicate that host physiology and infection patterns can change significantly during translocation, but further investigation is required to determine how these patterns influence translocation success.

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Section: The Influence Of Translocation On Woylie Stress Physiologymentioning

confidence: 99%

Evaluating Stress Physiology and Parasite Infection Parameters in the Translocation of Critically Endangered Woylies (Bettongia penicillata)

et al. 2017

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“…In recent years, there has been an increasing interest in translocation of threatened species as a conservation measure (Anderson et al 2015;Louys et al 2014;Narayan 2015). A common goal of conservation is to maintain and protect genetic diversity and the evolutionary potential of a species (McNeely et al 1990;Weeks et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and structure of the threatened striped legless lizard, Delma impar: management implications for the species and a translocated population

et al. 2018

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The striped legless lizard, Delma impar, is a specialist grassland species restricted to south-eastern Australia. Anthropogenic influences have seen the destruction of much of its habitat and the species is threatened with extinction. Known populations of D. impar in Canberra (Australia) have recently been cleared for urban development. In 2015, Bush Heritage Australia translocated 41 individuals from these populations to Scottsdale Reserve. In this study, we completed the first population genetics analysis of D. impar in Canberra, providing a baseline for assessment of the genetic success of the translocation to Scottsdale Reserve. We analysed 154 D. impar individuals from six populations in Canberra, assessing levels of genetic diversity and differentiation within and between populations, using eight highly polymorphic microsatellite loci. High levels of genetic diversity and negligible levels of genetic differentiation were observed. Measures of allelic diversity were lower in the translocated population compared to the Canberra populations and Bayesian analysis revealed a disproportionate representation of two genetic clusters identified by STRU CTU RE between the Scottsdale Reserve and Canberra populations, indicating that the initial genetic capture failed to 'capture' recommended levels of genetic diversity to support an ongoing population. If the species successfully establishes itself at Scottsdale Reserve, the data suggests that the population should be augmented with individuals from other sites in Canberra, with the aim of increasing genetic diversity to recommended levels (i.e. > 95% genetic variation). This will maximise resilience, adaptability and long-term survival potential of the Scottsdale Reserve population of striped legless lizards from a genetic context.

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Can translocations to islands reduce extinction risk for reptiles? Case studies from New Zealand

Towns

Miller

Nelson

et al. 2016

Biological Conservation

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Moving house: long-term dynamics of corticosterone secretion are unaltered in translocated populations of a rare reptile (the tuatara,Sphenodon punctatus)

Cited by 6 publications

References 73 publications

Evaluating Stress Physiology and Parasite Infection Parameters in the Translocation of Critically Endangered Woylies (Bettongia penicillata)

Evaluating Stress Physiology and Parasite Infection Parameters in the Translocation of Critically Endangered Woylies (Bettongia penicillata)

Genetic diversity and structure of the threatened striped legless lizard, Delma impar: management implications for the species and a translocated population

Can translocations to islands reduce extinction risk for reptiles? Case studies from New Zealand

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