Influence of pitfall trap size and design on herpetofauna and small mammal studies in a Neotropical Forest

Ribeiro‐Júnior, Marco Antônio; Rossi, Rogério Vieira; Miranda, Cleuton Lima; Ávila-Pires, Teresa Cristina Sauer

doi:10.1590/s1984-46702011000100012

Cited by 37 publications

(39 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another possibility would be to simulate captures, as opposed to fence encounters, by modeling individual animal movements upon reaching a fence. Complicated fence arrangements, such as X or Y shapes, are expected to funnel certain animals towards a trap once they encounter a fence (Morton et al 1988), although several field studies (Hobbs et al 1994, Ribeiro-Jú nior et al 2011, Ellis 2013 as well as our simulations indicate that simple straight fences are likely to give higher encounter rates per unit length of fence. The choice of placement of traps along a fence (middle or ends), spacing between traps, and length of fences may all depend on the behaviors of different species on encountering a fence and require further study.…”

Section: Potential To Extend the Simulation Frameworkmentioning

confidence: 77%

A simulation study to quantify drift fence configuration and spacing effects when sampling mobile animals

Ellis¹,

Bedward

2014

Ecosphere

View full text Add to dashboard Cite

Abstract. Drift fences with traps are commonly used for ecological research and survey. Field studies have examined the effectiveness of selected fence layouts, but comprehensive field testing is impractical. We applied a simulation approach to investigate how the interaction of fence layout and animal movement type influence fence encounter rates. A range of fence layouts, varying in spacing and configuration, were chosen based on common field practices and recommendations in the literature. Animal movement patterns ranged from meandering (Brownian) to highly directional over distances of 10 to 500 m. We found that fences in short, straight, widely spaced arrangements would be encountered more frequently by highly mobile animals than the same amount of fence in complex or continuous configurations. The dispersed arrangement was encountered just as often by animals with more limited movement patterns as were closer spaced fences. Consequently, for broad-scale surveys, as opposed to studies on individuals' movements and microhabitat use, we recommend spacing trap/fence units in relation to the movement abilities of the most mobile species being sought. For studies that require intense point sampling, additional fencing should increase the total rate that animals encounter fences at a point but the increase will not be proportional to the additional fencing used. The software is provided to allow for other configurations of fences and movement patterns to be investigated.

show abstract

Section: Potential To Extend the Simulation Frameworkmentioning

confidence: 77%

A simulation study to quantify drift fence configuration and spacing effects when sampling mobile animals

Ellis¹,

Bedward

2014

Ecosphere

View full text Add to dashboard Cite

show abstract

“…larger buckets could be more efficient in preventing more individuals from escaping). However, some studies have suggested that bucket size may not affect significantly the richness and abundance of amphibians and reptiles sampled by pitfall traps in tropical forests (Webb 1999, Ribeiro-Júnior et al 2011. Nevertheless, pitfall traps have not proven to be an efficient method for short-term herpetofaunal inventories, at least in Atlantic Forest areas (e.g., Almeida-Gomes et al 2008, Siqueira et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Species composition and density estimates of the anurofauna of a site within the northernmost large Atlantic Forest remnant (Parque Estadual do Desengano) in the state of Rio de Janeiro, Brazil

et al. 2011

View full text Add to dashboard Cite

We present data on species composition, relative abundance and estimated densities for leaf-litter anuran amphibians from an Atlantic Forest area within the Parque Estadual do Desengano, in the state of Rio de Janeiro, Brazil, based on results of a short-term survey carried out during the winter at altitudes of 1000-1500 m. Three sampling methods were used: plot sampling, visual encounter surveys (VES; performed during the day, at the twilight, and at night), and pitfall traps. We recorded 13 species, with the direct-developer Ischnocnema parva (Girard, 1853) being the most abundant. Most frogs (ca. 90% of all individuals) sampled by VES were captured during the crepuscular and nocturnal periods. The estimated density of the local leaf-litter frog assemblage based on plot sampling was 13.2 ind.100 m-2, which is one of the highest values currently reported for Atlantic Rainforest areas. This is the first study analyzing the anuran fauna of the Parque Estadual do Desengano and adds to the knowledge of the fauna of the northern region of the state of Rio de Janeiro, which is still poorly studied.

show abstract

“…Samples were collected mostly with pitfall traps (PFT), this being a largely successful and effective method to capture amphibians and reptiles (Mengak and Guynn 1987;Ribeiro-Júnior et al 2011). Pitfall traps were installed in stations consisting of four buckets each (each bucket with 60 liters capacity), arranged in a radial pattern (explained in detail in Cechin and Martins 2000).…”

Section: Collection and Analysis Of Datamentioning

confidence: 99%

Amphibians and reptiles from Floresta Nacional de Pau-Rosa, Amazonas, Brazil: an important protected area at the heart of Amazonia

2017

View full text Add to dashboard Cite

Amazonia harbors the largest and most diverse tropical forest in the world, but knowledge about the species diversity of the region is still far from ideal. Given this low level of faunal and floral knowledge, we present an annotated list of the species of amphibians and reptiles found in Floresta Nacional do Pau-Rosa (FNPR), along the Rio Paraconi, municipality of Maués, state of Amazonas, Brazil. Herpetofauna of the FNPR was sampled with pitfall traps, active search and occasional encounters from February 18 to March 28, 2009. A total of 270 specimens were collected, representing 39 species of amphibians and 24 species of reptiles. At least seven of the species collected at FNPR represented, at the time, unnamed taxa (four of which have now been named). The number of taxa collected and the high number of unnamed taxa highlight the importance of this area in terms of biodiversity and as a priority for conservation. We also discuss about the amphibian diversity in Amazonia.

show abstract

Influence of pitfall trap size and design on herpetofauna and small mammal studies in a Neotropical Forest

Cited by 37 publications

References 25 publications

A simulation study to quantify drift fence configuration and spacing effects when sampling mobile animals

A simulation study to quantify drift fence configuration and spacing effects when sampling mobile animals

Species composition and density estimates of the anurofauna of a site within the northernmost large Atlantic Forest remnant (Parque Estadual do Desengano) in the state of Rio de Janeiro, Brazil

Amphibians and reptiles from Floresta Nacional de Pau-Rosa, Amazonas, Brazil: an important protected area at the heart of Amazonia

Contact Info

Product

Resources

About