Volunteer Conservation Action Data Reveals Large-Scale and Long-Term Negative Population Trends of a Widespread Amphibian, the Common Toad (Bufo bufo)
Publication Date
October 05, 2016
Journal
PLOS ONE
Authors
Silviu O. Petrovan & Benedikt R. Schmidt
Volume
11
Issue
10
Pages
e0161943
DOI
http://doi.org/10.1371/journal.pone.0161943
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0161943
Web of Science
000385697200004
Scopus
84991240404
Mendeley
http://www.mendeley.com/research/volunteer-conservation-action-data-reveals-largescale-longterm-negative-population-trends-widespread
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Mendeley | Further Information

{"title"=>"Volunteer conservation action data reveals large-scale and long-term negative population trends of a widespread amphibian, the common toad (Bufo bufo)", "type"=>"journal", "authors"=>[{"first_name"=>"Silviu O.", "last_name"=>"Petrovan", "scopus_author_id"=>"36015649400"}, {"first_name"=>"Benedikt R.", "last_name"=>"Schmidt", "scopus_author_id"=>"7402828855"}], "year"=>2016, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"84991240404", "pui"=>"612637754", "scopus"=>"2-s2.0-84991240404", "doi"=>"10.1371/journal.pone.0161943", "issn"=>"19326203"}, "id"=>"6aa61cf3-a1cd-3732-b056-f77a9aa8a7aa", "abstract"=>"Rare and threatened species are the most frequent focus of conservation science and action. With the ongoing shift from single-species conservation towards the preservation of ecosystem services, there is a greater need to understand abundance trends of common species because declines in common species can disproportionately impact ecosystems function. We used volunteer-collected data in two European countries, the United Kingdom (UK) and Switzerland, since the 1970s to assess national and regional trends for one of Europe’s most abundant amphibian species, the common toad (Bufo bufo). Millions of toads were moved by volunteers across roads during this period in an effort to protect them from road traffic. For Switzerland, we additionally estimated trends for the common frog (Rana temporaria), a similarly widespread and common amphibian species. We used state-space models to account for variability in detection and effort and included only populations with at least 5 years of data; 153 populations for the UK and 141 for Switzerland. Common toads declined continuously in each decade in both countries since the 1980s. Given the declines, this common species almost qualifies for International Union for the Conservation of Nature (IUCN) red-listing over this period despite volunteer conservation efforts. Reasons for the declines and wider impacts remain unknown. By contrast, common frog populations were stable or increasing in Switzerland, although there was evidence of declines after 2003. “Toads on Roads” schemes are vital citizen conservation action projects, and the data from such projects can be used for large scale trend estimations of widespread amphibians. We highlight the need for increased research into the status of common amphibian species in addition to conservation efforts focusing on rare and threatened species.", "link"=>"http://www.mendeley.com/research/volunteer-conservation-action-data-reveals-largescale-longterm-negative-population-trends-widespread", "reader_count"=>33, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Researcher"=>9, "Student > Ph. D. Student"=>3, "Student > Postgraduate"=>7, "Other"=>4, "Student > Master"=>5, "Student > Bachelor"=>2, "Lecturer > Senior Lecturer"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Researcher"=>9, "Student > Ph. D. Student"=>3, "Student > Postgraduate"=>7, "Other"=>4, "Student > Master"=>5, "Student > Bachelor"=>2, "Lecturer > Senior Lecturer"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Environmental Science"=>7, "Agricultural and Biological Sciences"=>19, "Arts and Humanities"=>2, "Psychology"=>1, "Social Sciences"=>1, "Decision Sciences"=>1}, "reader_count_by_subdiscipline"=>{"Social Sciences"=>{"Social Sciences"=>1}, "Decision Sciences"=>{"Decision Sciences"=>1}, "Psychology"=>{"Psychology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>19}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>7}, "Arts and Humanities"=>{"Arts and Humanities"=>2}}, "reader_count_by_country"=>{"United States"=>1, "Brazil"=>1, "United Kingdom"=>1, "France"=>1, "Portugal"=>1, "Costa Rica"=>1, "Spain"=>1}, "group_count"=>1}

Scopus | Further Information

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