Isotopic ecology of coyotes from scat and road kill carcasses: A complementary approach to feeding experiments
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Mendeley | Further Information

{"title"=>"Isotopic ecology of coyotes from scat and road kill carcasses: A complementary approach to feeding experiments", "type"=>"journal", "authors"=>[{"first_name"=>"Rachel E.B.", "last_name"=>"Reid", "scopus_author_id"=>"56816292400"}, {"first_name"=>"Paul L.", "last_name"=>"Koch", "scopus_author_id"=>"7202929119"}], "year"=>2017, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "sgr"=>"85016760209", "doi"=>"10.1371/journal.pone.0174897", "scopus"=>"2-s2.0-85016760209", "isbn"=>"1111111111", "pmid"=>"28369133", "pui"=>"615098289"}, "id"=>"f45b7566-dcfb-3f60-a69b-941f4c486d84", "abstract"=>"Scat is frequently used to study animal diets because it is easy to find and collect, but one concern is that gross fecal analysis (GFA) techniques exaggerate the importance of small-bodied prey to mammalian mesopredator diets. To capitalize on the benefits of scat, we suggest the analysis of scat carbon and nitrogen isotope values (δ13C and δ15N). This technique offers researchers a non-invasive method to gather short-term dietary information. We conducted three interrelated studies to validate the use of isotopic values from coyote scat: 1) we determined tissue-to-tissue apparent C and N isotope enrichment factors (ε13* and ε15*) for coyotes from road kill animals (n = 4); 2) we derived diet-to-scat isotope discrimination factors for coyotes; and 3) we used field collected coyote scats (n = 12) to compare estimates of coyote dietary proportions from stable isotope mixing models with estimates from two GFA techniques. Scat consistently had the lowest δ13C and δ15N values among the tissues sampled. We derived a diet-to-scat Δ13C value of -1.5‰ ± 1.6‰ and Δ15N value of 2.3‰ ± 1.3‰ for coyotes. Coyote scat δ13C and δ15N values adjusted for discrimination consistently plot within the isotopic mixing space created by known dietary items. In comparison with GFA results, we found that mixing model estimates of coyote dietary proportions de-emphasize the importance of small-bodied prey. Coyote scat δ13C and δ15N values therefore offer a relatively quick and non-invasive way to gain accurate dietary information.", "link"=>"http://www.mendeley.com/research/isotopic-ecology-coyotes-scat-road-kill-carcasses-complementary-approach-feeding-experiments", "reader_count"=>20, "reader_count_by_academic_status"=>{"Student > Doctoral Student"=>3, "Researcher"=>4, "Student > Ph. D. Student"=>8, "Other"=>2, "Student > Master"=>2, "Student > Bachelor"=>1}, "reader_count_by_user_role"=>{"Student > Doctoral Student"=>3, "Researcher"=>4, "Student > Ph. D. Student"=>8, "Other"=>2, "Student > Master"=>2, "Student > Bachelor"=>1}, "reader_count_by_subject_area"=>{"Environmental Science"=>6, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>9, "Medicine and Dentistry"=>1, "Earth and Planetary Sciences"=>3}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>3}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>9}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Environmental Science"=>{"Environmental Science"=>6}}, "reader_count_by_country"=>{"Japan"=>1, "Brazil"=>1}, "group_count"=>0}

Scopus | Further Information

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