N-mixture models with camera trap imagery produce accurate abundance estimates of ungulates

被引：0

作者：

Harris, Grant M. ^{[1
]}

Stewart, David R. ^{[1
]}

Butler, Matthew J. ^{[1
]}

Rominger, Eric M. ^{[2
]}

Ruhl, Caitlin Q. ^{[3
]}

Mcdonald, Daniel T. ^{[4
]}

Schmidt, Paige M. ^{[5
]}

机构：

[1] United States Fish & Wildlife Serv, Albuquerque, NM 87103 USA

[2] New Mexico Dept Game & Fish, Santa Fe, NM USA

[3] New Mex Dept Game & Fish, Santa Fe, NM USA

[4] United States Fish & Wildlife Serv, Indiahoma, OK USA

[5] United States Fish & Wildlife Serv, Tulsa, OK USA

来源：

SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期

关键词：

DESERT BIGHORN SHEEP; EXPERT OPINION; CLIMATE-CHANGE; IMPACTS; BIAS;

D O I：

10.1038/s41598-024-83011-4

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Abundance estimates inform ungulate management and recovery efforts. Yet effective and affordable estimation techniques remain absent for most ungulates lacking identifiable marks and inhabiting rugged or highly vegetated terrain. Methods using N-mixture models with camera trap imagery form an appealing solution but remain unvalidated. We assess this method using populations of desert bighorn sheep (DBS; Ovis canadensis) in New Mexico, USA, plus bison (Bison bison bison) and Texas longhorn cattle (Bos taurus taurus) in Oklahoma, USA, by calculating and comparing abundance estimates to censused values. We parsed data by 3 and 7-day intervals, using images filtered or unfiltered, and collected with motion detection or timed camera settings. We employed priors informed by subject matter experts (SME) and calculated using detection-nondetection methods. Abundance estimates from filtered images captured by motion detection in 3-day intervals included the censused value across all seasons for adult DBS, rams and ewes, indicating "best practices". This "best practices" method also captured censused values for population estimates of bison (detection-nondetection) and cattle with both priors. Our assessment validates the use of N-mixture with camera trap imagery, while presenting sampling approaches, data handling procedures and model calibration to estimate wildlife population sizes more appropriately and accurately.

引用

页数：12

共 33 条

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