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Related Concept Videos

Testing a Claim about Mean: Unknown Population SD01:21

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A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
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A Method for Quantifying Foliage-Dwelling Arthropods
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Variation in herpetofauna detection probabilities: implications for study design.

Jeremy A Baumgardt1,2, Michael L Morrison3, Leonard A Brennan4

  • 1Texas A&M Natural Resources Institute, 578 John Kimbrough Boulevard, College Station, TX, 77843, USA. jeremy.baumgardt@tamuk.edu.

Environmental Monitoring and Assessment
|September 17, 2021
PubMed
Summary
This summary is machine-generated.

Accurate herpetofauna monitoring requires accounting for detection probability. Occupancy modeling with funnel and pitfall traps is recommended for efficient biodiversity assessments in southern Texas.

Keywords:
AmphibiansCapture ratesMonitoringOccupancy modelingReptiles

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Area of Science:

  • Wildlife Ecology
  • Conservation Biology
  • Herpetology

Background:

  • Global biodiversity decline necessitates effective population monitoring strategies.
  • Herpetofauna populations are declining worldwide, presenting monitoring challenges.
  • Traditional monitoring methods like raw counts are susceptible to detection probability bias.

Purpose of the Study:

  • To develop an efficient herpetofauna monitoring program in southern Texas.
  • To estimate detection probabilities using an occupancy modeling framework.
  • To evaluate the effectiveness of funnel traps, pitfall traps, and cover boards.

Main Methods:

  • Data collected using 36 trap arrays over 2105 array-days across two study sites (2015-2016).
  • Occupancy modeling applied to estimate detection probabilities for 21 herpetofauna species.
  • Comparison of capture efficiencies for funnel traps, pitfall traps, and cover boards.

Main Results:

  • Detection probability varied with sampling duration for 10 species and rainfall for 10 species.
  • Funnel traps were most efficient for 14 species; pitfall traps for 12 species; cover boards for none.
  • Monitoring methods ignoring detection probability introduce significant bias without extensive sampling.

Conclusions:

  • Occupancy modeling is crucial for unbiased herpetofauna monitoring.
  • Arrays utilizing funnel and pitfall traps are recommended for southern Texas herpetofauna.
  • Accurate monitoring informs critical biodiversity management decisions.