Arid
DOI10.1002/wsb.749
Comparing Morphological and Molecular Diet Analyses and Fecal DNA Sampling Protocols for a Terrestrial Carnivore
Gosselin, Elyce N.1; Lonsinger, Robert C.1,2; Waits, Lisette P.1
通讯作者Lonsinger, Robert C.
来源期刊WILDLIFE SOCIETY BULLETIN
ISSN1938-5463
出版年2017
卷号41期号:2页码:362-369
英文摘要

Analyzing predator scats for the presence of prey is a common noninvasive approach to understanding trophic interactions. Morphological analysis of prey remains has been the prevailing method of diet analysis, but molecular methods are becoming more widely used. Previous analyses suggest molecular methods detect target prey species more frequently than morphological methods. We compared these methods by analyzing coyote (Canis latrans) scats-collected in Tooele County, Utah, USA, in the winter of 2014-for leporids, a taxonomic group for which a molecular species identification test has been developed. We included 25 scats in which leporids were detected and 25 scats in which leporids were not detected by morphological methods. Additionally, because few studies have explored the effect of fecal sampling protocols on prey DNA detection, we analyzed subsamples taken from 5 locations on each scat to compare prey detection frequencies. We found that molecular analysis detected leporid prey in scats at a rate similar to or greater than morphological analysis, depending on the number of fecal sampling locations considered. Of the single samples, the homogenized (46%) and side (44%) samples provided the greatest rates of leporid prey DNA detection, followed by the ends (mean across both ends = 35%) and center (38%) of scats. When multiple sampling locations were considered, the homogenized-side combination (70%) had a detection rate similar to when all sampling locations were considered (76%). Our results indicate that molecular analysis detected prey more frequently than morphological analysis, but that prey detection was not equitable among fecal sampling locations and multiple sampling locations may be required. (c) 2017 The Wildlife Society.


英文关键词Canis latrans fecal DNA Leporidae molecular diet analysis molecular scatology morphological diet analysis noninvasive genetic sampling prey identification
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000404380200023
WOS关键词FOX ALOPEX-LAGOPUS ; GREAT-BASIN DESERT ; PREY DNA ; SPECIES IDENTIFICATION ; GENERALIST PREDATOR ; KIT FOXES ; SEA LIONS ; SCATS ; FECES ; PRESERVATION
WOS类目Biodiversity Conservation
WOS研究方向Biodiversity & Conservation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202948
作者单位1.Univ Idaho, Dept Fish & Wildlife Sci, Moscow, ID 83844 USA;
2.Univ Wisconsin, Coll Nat Resources, Stevens Point, WI 54482 USA
推荐引用方式
GB/T 7714
Gosselin, Elyce N.,Lonsinger, Robert C.,Waits, Lisette P.. Comparing Morphological and Molecular Diet Analyses and Fecal DNA Sampling Protocols for a Terrestrial Carnivore[J],2017,41(2):362-369.
APA Gosselin, Elyce N.,Lonsinger, Robert C.,&Waits, Lisette P..(2017).Comparing Morphological and Molecular Diet Analyses and Fecal DNA Sampling Protocols for a Terrestrial Carnivore.WILDLIFE SOCIETY BULLETIN,41(2),362-369.
MLA Gosselin, Elyce N.,et al."Comparing Morphological and Molecular Diet Analyses and Fecal DNA Sampling Protocols for a Terrestrial Carnivore".WILDLIFE SOCIETY BULLETIN 41.2(2017):362-369.
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