Bottom-nets as a new method for quantitatively sampling tadpole populations (Amphibia, Anura)

Gascon, Claude

doi:10.1590/s0101-81751994000200021

Cited by 1 publication

(1 citation statement)

References 8 publications

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“…Vogt and Hine 1982, Jacobson 1984, Stubbs et al 1984, Coyne 1994, Gascon 1994, Jones and hayes-Odum 1994, Mcdiarmid and Altig 1999, Auricchio and Salomão 2002, Franco et al 2002, Freilich et al 2005, Willson and Dorcas 2004, despite the knowledge of the wide variety of shapes and habits that snakes may have (Cadle and Greene 1993). Studies that focus on snakes often rely on multiple methods to sample snakes in order to capture the highest number of individuals and thus obtaining a good representation of the assemblage richness (e.g.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of snake sampling methods in the Brazilian semiarid region

Mesquita

Passos

Cechin

2013

An. Acad. Bras. Ciênc.

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The choice of sampling methods is a crucial step in every field survey in herpetology. In countries where time and financial support are limited, the choice of the methods is critical. The methods used to sample snakes often lack objective criteria, and the traditional methods have apparently been more important when making the choice. Consequently researches using not-standardized methods are frequently found in the literature. We have compared four commonly used methods for sampling snake assemblages in a semiarid area in Brazil. We compared the efficacy of each method based on the cost-benefit regarding the number of individuals and species captured, time, and financial investment. We found that pitfall traps were the less effective method in all aspects that were evaluated and it was not complementary to the other methods in terms of abundance of species and assemblage structure. We conclude that methods can only be considered complementary if they are standardized to the objectives of the study. The use of pitfall traps in short-term surveys of the snake fauna in areas with shrubby vegetation and stony soil is not recommended.

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Section: Introductionmentioning

confidence: 99%