Using occupancy models in wildlife camera-trapping monitoring and the study case

doi:10.17520/biods.2018195

Abstract

Abstract:

Occupancy models have the advantage of accounting for imperfect detection, they have simple and flexible data requirements as we all high economic efficiency. For these reasons, occupancy models have been increasingly applied in wildlife research. In this paper, we introduced the basic principles and use of the occupancy models. Using camera trap data we outlined the operational procedures and considerations from field investigation to data analysis. Using the masked palm civet (Paguma larvata) in the Guangdong Chebaling National Nature Reserve as an example we demonstrate the basic steps of how estimate occupancy and detect probability. Finally, according to occupancy model research from recent years, we summarize use trends and main limitations in the research.

Key words: camera trap, wildlife, data analysis, occupancy models, detectability, masked palm civet

Xiao Wenhong,Shu Zufei,Chen Lijun,Yao Wutao,Ma Yong,Zhang Yingming,Xiao Zhishu. Using occupancy models in wildlife camera-trapping monitoring and the study case[J]. Biodiv Sci, 2019, 27(3): 249-256.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2018195

https://www.biodiversity-science.net/EN/Y2019/V27/I3/249

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模型 Model	K	AIC	ΔAIC	AIC权重 AIC weight	Ψ	p
p(海拔范围)ψ(海拔范围) p(elevation range)ψ(elevation range)	4	267.61	0	0.30	0.55	0.13
p(海拔范围, EVI)ψ (海拔范围) p(elevation range, EVI)ψ(elevation range)	5	268.99	1.38	0.15	0.55	0.12
p(海拔范围)ψ(海拔范围, EVI) p(elevation range)ψ(elevation range, EVI)	5	269.11	1.51	0.14	0.58	0.13
模型平均 Model average					0.56	0.13

模型 Model	K	AIC	ΔAIC	AIC权重 AIC weight	Ψ	p
p(海拔范围)ψ(海拔范围) p(elevation range)ψ(elevation range)	4	267.61	0	0.30	0.55	0.13
p(海拔范围, EVI)ψ (海拔范围) p(elevation range, EVI)ψ(elevation range)	5	268.99	1.38	0.15	0.55	0.12
p(海拔范围)ψ(海拔范围, EVI) p(elevation range)ψ(elevation range, EVI)	5	269.11	1.51	0.14	0.58	0.13
模型平均 Model average					0.56	0.13

模型成分 Model component	协变量 Covariates	估计值 Estimate	标准误 SE	P
占域 Occupancy	截距 Intercept	0.38	0.85	0.66
	海拔范围 Elevation range	-1.82	1.02	0.07
	EVI	0.06	0.23	0.78
探测 Detection	截距 Intercept	-2.45	0.26	< 0.001
	海拔范围 Elevation range	1.29	0.30	< 0.001
	EVI	0.04	0.12	0.75

模型成分 Model component	协变量 Covariates	估计值 Estimate	标准误 SE	P
占域 Occupancy	截距 Intercept	0.38	0.85	0.66
	海拔范围 Elevation range	-1.82	1.02	0.07
	EVI	0.06	0.23	0.78
探测 Detection	截距 Intercept	-2.45	0.26	< 0.001
	海拔范围 Elevation range	1.29	0.30	< 0.001
	EVI	0.04	0.12	0.75

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