Capturing small carnivores is often necessary for obtaining key ecological data. We compared the efficiency of box and leg-hold traps, using live and dead bait, to capture six carnivore species (Herpailurus yagouaroundi (E. Geoffroyi, 1803), Leopardus tigrinus (Schreber, 1775), Nasua nasua (Linnaeus, 1766), Cerdocyon thous (Linnaeus, 1766), Eira barbara (Linnaeus, 1758), and Galictis cuja (Molina, 1782)). The use of leg-hold traps significantly increased the capture rate of carnivores (5.77%) and non-target species (non-carnivores, 11.54%). Dead bait significantly attracted more non-carnivores than carnivores and live bait was more efficient for capturing carnivores (2.56%) than non-carnivores (0.77%). Both box and leg-hold traps caused some minor injuries (swelling and claw loss). We provide recommendations for the ethical use of these trap and bait types.
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http://dx.doi.org/10.15517/rbt.v55i1.6083 | DOI Listing |
Sci Total Environ
June 2020
Department of Biodiversity, Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre, Western Australia 6983, Australia.
Adaptive management is the systematic acquisition and application of reliable information to improve natural resource management over time. We have employed an adaptive management framework in the control and monitoring of feral cats (Felis catus) on the Matuwa Indigenous Protected Area over the past 16 years. We used 120 Reconyx PC900 camera-traps and a rapid survey technique called the cat track activity index (TAI) to determine if aerial baiting with Eradicat® was more efficient and/or cost-effective than track baiting plus leg-hold trapping.
View Article and Find Full Text PDFAnimals (Basel)
May 2019
Perth Zoo Science, Department of Biodiversity, Conservation and Attractions, South Perth, WA 6151, Australia.
To inform trapping protocols to reduce by-catch while trapping feral cats by-catch welfare costs should be quantified. During cat trapping programs at six Western Australian sites from 1997-2015, 431 non-target individuals, including 232 individuals from native species (132 mammals, 52 birds and 42 reptiles) were captured. Among the native fauna; birds were more likely to be severely injured (33%, compared to 12% in mammals and 21% in reptiles).
View Article and Find Full Text PDFPrev Vet Med
November 2018
Manaaki Whenua Landcare Research, PO Box 69040, Lincoln, 7640, New Zealand. Electronic address:
Wildlife disease surveillance requires accurate information on the proportion of managed populations sampled or their population density, parameters that are typically expensive to measure. However, these parameters can be estimated using spatially explicit modelling of capture probabilities, based on the distribution and deployment times of capture devices, given accurate information on the relationships between these variables. This approach is used in New Zealand's surveillance programme aimed at confirming areas free of bovine tuberculosis (bTB) in brushtail possums (Trichosurus vulpecula).
View Article and Find Full Text PDFStress
September 2017
a CIBIO/InBio , Research Center in Biodiversity and Genetic Resources, Universidade do Porto , Vairão , Portugal.
Objectives: Wildlife capture is an essential management tool that induces a reactive homeostasis response in the captured animals. The aim of this study was to characterize the reactive homeostatic response to trapping in free-ranging wolves and assess the mitigation achieved by reducing the duration of restraint.
Materials And Methods: Making use of wolves captured for ecological research as a model for wildlife acute stress, we characterize 25 reactive homeostasis mediators and we assess the effect on these mediators of reducing the duration of restraint in trap by using remote trap activation alarms.
PLoS One
March 2016
Science and Capability Group, Department of Conservation, Christchurch, New Zealand.
There is interest in large-scale and unbiased monitoring of biodiversity status and trend, but there are few published examples of such monitoring being implemented. The New Zealand Department of Conservation is implementing a monitoring program that involves sampling selected biota at the vertices of an 8-km grid superimposed over the 8.6 million hectares of public conservation land that it manages.
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