Hair Snares for Noninvasive Sampling of Felids in North America: Do Gray Foxes Affect Success?

Downey, Patricia; Hellgren, Eric C.; Caso, Arturo; Carvajal, Sasha; Frangioso, Kerri M.

doi:10.2193/2006-500

Cited by 19 publications

(14 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hair snares are expected to be highly practical as a tool for large-scale monitoring projects (Ruell and Crooks 2007;Downey et al 2007;Weaver et al 2003). Owing to their comparably low cost and simple production, high numbers of hair snares can be used in a given study area.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of the effectivity of different snare types for collecting and retaining hair from Eurasian Lynx (Lynx lynx)

2012

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

“…The hair snares recommended by Weaver et al (1997) were made from a piece of carpet pierced with numerous nails. In a slightly modified form, these snares were used in investigations by McDaniel et al (2000), Downey et al (2007), Harrison (2006), andMcKelvey et al (2006).…”

Section: Introductionmentioning

confidence: 99%

Comparison of the effectivity of different snare types for collecting and retaining hair from Eurasian Lynx (Lynx lynx)

2012

View full text Add to dashboard Cite

show abstract

“…As Downey et al (2007) suggested that failure to detect felids in hair-trap surveys might be influenced by high densities of gray foxes (Urocyon cinereoargenteus) we compared frequencies of concurrent and separate detections between gray foxes and the families Felidae, Procyonidae, and Mephitidae, which had sample sizes large enough for analyses, with chi-square contingency tests. Finally, we did a literature search to compare effectiveness and costs of other carnivore survey methods against hair-trap surveys.…”

Section: Methodsmentioning

confidence: 99%

Hair‐Trap Efficacy for Detecting Mammalian Carnivores in the Tropics

et al. 2008

View full text Add to dashboard Cite

Direct studies of mammalian carnivores are challenging due to the animals' secretive nature and the high costs associated with their capture and handling. Use of noninvasive hair sampling to survey these reclusive species has great potential as an alternative, with wide applicability in ecology and conservation. Hair‐trapping has been extensively used for focal studies of temperate mammals, but its use and applicability as a means to survey mammals in tropical environs has never been addressed. We evaluated the effectiveness of 2 hair‐trap types and 2 scents along an elevational gradient within El Cielo Biosphere Reserve (ECBR, Mexico) to detect presence of carnivores. Hair‐traps that used roofing nails as a hair‐collecting surface collected more hairs and detected a greater number of species than did hair‐traps that used velcro strips. Different scent treatments (commercial fragrance and catnip oil) did not differ for these same variables. Of successful nail hair‐traps, 60% collected ≥20 hairs (max. = 439), providing enough material for DNA analyses. Hair‐trap surveys detected 74% of the potential target mammal species at ECBR with only 19 days of field effort. Developing countries have limited budgets for biodiversity monitoring and hair‐traps compare favorably with other methods with a high cost‐benefit ratio. Hair‐traps are inexpensive, portable, can be made with over‐the‐counter materials, and can be successfully used to collect data applicable to population and genetic studies of tropical carnivores.

show abstract

“…This approach has been previously undertaken in temperate areas for a variety of carnivore species [10], including lynx (Lynx canadensis) [11][12][13], bobcat (Lynx rufus) [9], puma (Puma concolor) [9,12], and ocelot (Leopardus pardalis) [14]. Nevertheless, some researchers targeting puma and margay (Leopardus wiedii) using this technique were unsuccessful in obtaining results [15]. This paper aims to evaluate the usefulness of hair snares to collect mammalian samples, with particular interest in feline species in the Selva Lacandona, a tropical rainforest of southern Mexico.…”

Section: Introductionmentioning

confidence: 99%

Hair-Snares: A Non-Invasive Method for Monitoring Felid Populations in the Selva Lacandona, Mexico

García-Alaníz

Naranjo

Mallory

2010

Tropical Conservation Science

View full text Add to dashboard Cite

Non-invasive techniques such as hair snares have been used in conjunction with molecular methods to study species that occur at low densities and have elusive behavior, as an alternative to invasive methods such as trapping and hunting. This study was designed to evaluate the use of hair snares as a non-invasive method for the collection of felid and other mammalian samples in the tropical rainforest of the Selva Lacandona, Chiapas, Mexico. Hair snares were placed along transects in Montes Azules Biosphere Reserve for four months a year in 2005 and 2006. Hairs were selected based on morphological characteristics and identification of species was done based on a diagnostic portion of mtDNA cytochrome b region. A total of 389 hits on 888 hair-snare checks were recorded, representing a capture rate of 43%. The species identified included margay (Leopardus wiedii, n=2), ocelot (Leopardus pardalis, n=1), jaguarundi (Puma yagouaroundi, n=1), gray fox (Urocyon cinereoargenteus, n=1), tayra (Eira barbara, n=3), coati (Nasua narica, n=1), four-eyed opossum (Metachirus nudicaudatus, n=6), and common opossum (Didelphis marsupialis, n=16). The present study is the first to report the successful collection of hair samples from jaguarundi and margay in the wild and hair samples from ocelots in tropical areas. The deficit of information on carnivore populations in tropical rainforests is due mainly to the lack of appropriate methodologies that are reliable and cost-effective. This study supports the assumption that hair-snaring is viable and cost-effective in ecosystems such as the Selva Lacandona, particularly when monitoring carnivore populations that have wide geographic distributions and low densities.Key words: Felids; Hair-snares; Leopardus pardalis; Leopardus wiedii; Selva Lacandona; Mexico Resumen Las técnicas no invasivas tales como las trampas de pelo han sido utilizadas junto con métodos moleculares para estudiar especies de mamíferos que ocurren en bajas densidades o que presentan un comportamiento elusivo, tratando de encontrar una alternativa a métodos invasivos como la colecta. Este estudio evalúa el uso de las trampas de pelo para la obtención de muestras de felinos y otros mamíferos en bosques tropicales como la Selva Lacandona de Chiapas, México. Las trampas de pelo se colocaron en transectos dentro de la Reserva de la Biosfera Montes Azules durante cuatro meses en 2005 y 2006. Las trampas fueron reemplazadas cada mes y las muestras obtenidas se seleccionaron en base a las características morfológicas del pelo. La identificación de las especies se realizó con base en una porción del gen mitocondrial citocromo b. Un total de 389 muestras fueron colectadas en 888 revisiones de las trampas. Las especies reportadas incluyen: margay (Leopardus wiedii, n=2), ocelote (Leopardus pardalis, n=1), jaguarundi (Puma yagouaroundi, n=1), zorra gris (Urocyon cinereoargenteus, n=1), tayra (Eira barbara, n=3), coatí (Nasua narica, n=1), tlacuache cuatro ojos (Metachirus nudicaudatus, n=6) y tlacuache común (Didelphis m...

show abstract

Hair Snares for Noninvasive Sampling of Felids in North America: Do Gray Foxes Affect Success?

Cited by 19 publications

References 15 publications

Comparison of the effectivity of different snare types for collecting and retaining hair from Eurasian Lynx (Lynx lynx)

Comparison of the effectivity of different snare types for collecting and retaining hair from Eurasian Lynx (Lynx lynx)

Hair‐Trap Efficacy for Detecting Mammalian Carnivores in the Tropics

Hair-Snares: A Non-Invasive Method for Monitoring Felid Populations in the Selva Lacandona, Mexico

Contact Info

Product

Resources

About