바로가기메뉴

본문 바로가기 주메뉴 바로가기

logo

Estimating Dection Probabilities and Site Occupancy Rates of three Anuran Species Using Call Surveys in Haenam Gun, Korea

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2006, v.29 no.4, pp.331-335








  • Downloaded
  • Viewed

Abstract

We investigated the distribution of three anuran species, Three-striped pond frogs (Rananigromaculata), Bullfrogs (Rana catesbeiana ), and Narow-mouthed toads (Kaloula borealis), in an administrativeveyors were assigned to each 2 2 km2survey plot. Call surveys on whether the species are present or notwere conducted for 5 minutes between 30 minutes after sunset and the midnight on rice fields and ponds from10 April to 28 August in 2005. Depending on species, call surveys were carried out at seven to 28 plots withaverage 8.4 to 10.7 visits per the plot. We calculated the detection probabilities and occupancy rates of the threespecies using four models with three covariates: temperature, humidity, and the amount of water at the habitat.The model average detection probabilities of thre anuran species of R. nigromaculata, R. catesbeiana,and K.borealis were 0.53, 0.74, and 0.41 respectively, and the site occupancy rates of them were 0.93, 0.94, and 0.86respectively. Our results indicate thatR. nigromaculata, R. catesbeiana,and K. borealisare common in HaenamGun.

keywords
Anuran species, Call survey, Kaloula borealis, Rana catesbeiana, Rana nigromaculata, S i t eoccupancy rateSung, Ha-Cheol et al. J . E c o l . F i e l d B i o l . 2 9 ( 4 ) 332Call surveys were conducted by volunteers of Haenam highschool students., Anuran species, Call survey, Kaloula borealis, Rana catesbeiana, Rana nigromaculata, S i t eoccupancy rateSung, Ha-Cheol et al. J . E c o l . F i e l d B i o l . 2 9 ( 4 ) 332Call surveys were conducted by volunteers of Haenam highschool students.

Reference

1.

(1999) Global amphibian declines:a problem in applied ecology,

2.

(2004) Spatial and temporal variation in detection probability of Plethodon salamanders using the robust capturerecapture design,

3.

(2004) The recent decline of a New Zealand endemic how and why did populations of Archey’s frog Leiopelma archeyi crash over 1996-2001? ,

4.

(2000) Temporal variation in anuran calling behavior:implications for surveys and monitoring programs,

5.

(2002) Model selection and multimodel inference: a practical information-theoretic approach, 2nd edition, Springer-Verlag

6.

(2002) An assessment of monitoring efforts in endangered species recovery plans,

7.

(1972) Indications of recent change in status in the British Isles of the frog,

8.

(2000) Quantitative evidence for global amphibian population declines,

9.

(2002) Estimating site occupancy rates when detection probabilities are less than one,

10.

(2005) Was it there? Dealing with imperfect detection for species presence/absence data,

11.

(1994) Measuring and monitoring biological diversity-standard methods for amphibians, Smithsonian Institute Press

12.

(2005) Monitoring distributions using call surveys: Estimating site occupancy, detection probabilities and inferring absence,

13.

(2002) Large-scale wildlife monitoring studies: Statistical methods for design and analysis.,

14.

(2003) Stochastic variation in reproductive success of a rare frog implications for conservation and for monitoring amphibian populations,

15.

(2004) N-mixture models for estimating population size from spatially replicated counts,

16.

(2005) Monitoring the distribution of pond-breeding amphibians when species are detected imperfectly,

17.

(2003) Amphibian declines:Future directions,

18.

(2005) Effectiveness of mating call playbacks in anuran call monitoring a case study of Three- striped pond frogs.(Rana nigromaculata),

19.

(2001) Monitoring of biological diversity in space and time;concepts, methods and designs,

Journal of Ecology and Environment