Monitoring Strategy for Eight Amphibian Species in French Guiana, South America
Publication Date
June 28, 2013
Journal
PLOS ONE
Authors
Elodie A. Courtois, Jennifer Devillechabrolle, Maël Dewynter, Kévin Pineau, et al
Volume
8
Issue
6
Pages
e67486
DOI
https://dx.plos.org/10.1371/journal.pone.0067486
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0067486
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/23840717
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3696091
Europe PMC
http://europepmc.org/abstract/MED/23840717
Web of Science
000321148400090
Scopus
84879514749
Mendeley
http://www.mendeley.com/research/monitoring-strategy-eight-amphibian-species-french-guiana-south-america-1
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Mendeley | Further Information

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Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1105091"], "description"=>"<p>(A) Location of the Nouragues reserve in French Guiana, and (B) Location of the Pararé site within the Nouragues Biological station (located inside the Nouragues reserve) with the 13 transects of 150 m in Habitat 1 (H1 in blue, along the Arataye river), Habitat 2 (H2 in yellow, in the plateau) and Habitat 3 (H3 in green, in the slope between the river and the plateau).</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology"], "article_id"=>734608, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.g001"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Location_of_the_study_site_/734608", "title"=>"Location of the study site.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105092"], "description"=>"<p>Evolution of population size (N, right axis) and standard deviation around the mean value estimated for <i>D. tinctorius</i> in habitat H2 by increasing the number of capture occasions for each of the four transect in habitat H2 (A) TH2A, (B) TH2B, (C) TH2C and (D) TH2D. Dotted lines represent variation of the coefficient of variation CV (left axis).</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology"], "article_id"=>734609, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.g002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Estimation_of_Dendrobates_tinctorius_population_size_with_increasing_number_of_capture_occasions_/734609", "title"=>"Estimation of <i>Dendrobates tinctorius</i> population size with increasing number of capture occasions.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105093"], "description"=>"<p>Estimations of (A) probabilities of detection and (B) occupancy rates for the eight species studied and standard deviation around the mean value for visual (points) and audio (cross) detection for Ab – A. baeobatrachus, Af – <i>A. femoralis</i>, Ag – <i>A. granti,</i> Ah – <i>A. hahneli</i>, At – <i>A. flavescens</i>, Dt – <i>D. tinctorius</i>, Rl – <i>R. lescurei</i>, and Rm – <i>R. margaritifera</i>.</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "detection", "occupancy"], "article_id"=>734610, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.g003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Probability_of_detection_and_occupancy_rate_/734610", "title"=>"Probability of detection and occupancy rate.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105094"], "description"=>"<p>Number of sites (S) required to detect a decline for Af – <i>A. femoralis</i>, Rm – <i>R. margaritifera</i>, Ag – <i>A. granti</i>, Dt – <i>D. tinctorius</i>, Ah – <i>A. hahneli</i> with a given power for (A) R = 0.05, i.e. a decline of 5% between survey one and survey two, (B) R = 0.15 and (C) R = 0.30. Species with audio detection are indicated in grey and species with visual detection in black.</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "sites", "occupancy"], "article_id"=>734611, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.g004"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Number_of_sites_to_detect_an_occupancy_decline_with_a_given_power_/734611", "title"=>"Number of sites to detect an occupancy decline with a given power.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105095"], "description"=>"<p>Naïve occupancy, i.e. the number of sites where the species was detected at least once during the survey is also indicated for each species.</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "occupancy", "modeling", "probability", "detection", "audio", "visits", "sites"], "article_id"=>734612, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.t004"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Results_from_occupancy_modeling_968_occupancy_rate_and_p_probability_of_detection_for_the_eight_species_with_the_type_of_detection_used_A_for_Audio_and_V_for_Visual_and_results_from_the_power_analysis_with_the_estimated_number_of_visits_K_needed_to_achie/734612", "title"=>"Results from occupancy modeling (ψ, occupancy rate and p probability of detection) for the eight species with the type of detection used (A for Audio and V for Visual) and results from the power analysis with the estimated number of visits (K) needed to achieve a p’ (probability that the species is detected at least once during the survey) equal to 0.8, 0.9 or 0.95 and the number of sites (S) needed with 8 visits (K = 8) to detect a decline of R equal to 0.5, 0.15 or 0.30.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105096"], "description"=>"<p>Density estimates using CMR models indicating the model used to make the estimation, the population size (N) estimated and its standard deviation, the coefficient of variation (CV), the confident interval at 95% for N, the capture probability for each transect and finally the density retrieved from the population size estimated via CMR.</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "estimates", "cmr", "coefficient", "probability", "transect"], "article_id"=>734613, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.t003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Density_estimates_using_CMR_models_indicating_the_model_used_to_make_the_estimation_the_population_size_N_estimated_and_its_standard_deviation_the_coefficient_of_variation_CV_the_confident_interval_at_95_for_N_the_capture_probability_for_each_transect_an/734613", "title"=>"Density estimates using CMR models indicating the model used to make the estimation, the population size (N) estimated and its standard deviation, the coefficient of variation (CV), the confident interval at 95% for N, the capture probability for each transect and finally the density retrieved from the population size estimated via CMR.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105097"], "description"=>"<p>Number of audio and visual walks per transect for each month in each habitat and the total number of walks for each transect for visual and audio detection.</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "audio", "walks", "transect"], "article_id"=>734614, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.t002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Number_of_audio_and_visual_walks_per_transect_for_each_month_in_each_habitat_and_the_total_number_of_walks_for_each_transect_for_visual_and_audio_detection_/734614", "title"=>"Number of audio and visual walks per transect for each month in each habitat and the total number of walks for each transect for visual and audio detection.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105099"], "description"=>"<p>Description of the species monitored in this study and possible use of the methods used in this study.</p>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "monitored", "methods"], "article_id"=>734616, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.t001"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Description_of_the_species_monitored_in_this_study_and_possible_use_of_the_methods_used_in_this_study_/734616", "title"=>"Description of the species monitored in this study and possible use of the methods used in this study.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-28 02:04:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/1105100", "https://ndownloader.figshare.com/files/1105101"], "description"=>"<div><p>Although dramatic amphibian declines have been documented worldwide, only few of such events have been quantitatively documented for the tropical forests of South America. This is due partly to the fact that tropical amphibians are patchily distributed and difficult to detect. We tested three methods often used to monitor population trends in amphibian species in a remote lowland tropical forest of French Guiana. These methods are capture-mark-recapture (CMR), estimation of the number of calling males with repeated counts data and distance sampling, and rates of occupancy inferred by presence/absence data. We monitored eight diurnal, terrestrial amphibian species including five Dendrobatidae and three Bufonidae. We found that CMR, the most precise way of estimating population size, can be used only with two species in high density patches where the recapture rate is high enough. Only for one of the species (<i>Dendrobates tinctorius</i>), a low coefficient of variation (CV = 0.19) can be achieved with 15 to 20 capture events. For dendrobatid species with day-calling males, audio surveys yield a better probability of detection with only 8 audio surveys needed; quantitative estimates can be achieved by computing the number of calling males inferred from audio counts or distance sampling analysis. We therefore suggest that an efficient monitoring protocol for Neotropical amphibian species should include a combination of sighting and audio techniques, and we discuss the need of implementing a large-scale monitoring in order to provide a baseline for comparison with future changes.</p></div>", "links"=>[], "tags"=>["ecology", "Ecological environments", "Terrestrial environments", "Ecological metrics", "Extinction risk", "Population size", "biodiversity", "Bioindicators", "Conservation science", "Population ecology", "Zoology", "Herpetology", "amphibian", "french"], "article_id"=>734617, "categories"=>["Biological Sciences"], "users"=>["Elodie A. Courtois", "Jennifer Devillechabrolle", "Maël Dewynter", "Kévin Pineau", "Philippe Gaucher", "Jérome Chave"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0067486.s001", "https://dx.doi.org/10.1371/journal.pone.0067486.s002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Monitoring_Strategy_for_Eight_Amphibian_Species_in_French_Guiana_South_America_/734617", "title"=>"Monitoring Strategy for Eight Amphibian Species in French Guiana, South America", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2013-06-28 02:04:55"}

PMC Usage Stats | Further Information

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Relative Metric

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