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Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire

In pre-colonial and colonial times Côte d’Ivoire probably hosted one of the largest elephant populations in West Africa, resulting in the country’s name Côte d’Ivoire (in English Ivory Coast) by French settlers. Numbers declined and by the early 90s it was estimated that the total number of both sav...

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Autores principales: Kouakou, Jean-Louis, Gonedelé Bi, Sery, Bitty, Eloi Anderson, Kouakou, Célestin, Yao, Alphonse Kouassi, Kassé, Kouadio Bénoîtype, Ouattara, Soulemane
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7556483/
https://www.ncbi.nlm.nih.gov/pubmed/33052917
http://dx.doi.org/10.1371/journal.pone.0232993
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author Kouakou, Jean-Louis
Gonedelé Bi, Sery
Bitty, Eloi Anderson
Kouakou, Célestin
Yao, Alphonse Kouassi
Kassé, Kouadio Bénoîtype
Ouattara, Soulemane
author_facet Kouakou, Jean-Louis
Gonedelé Bi, Sery
Bitty, Eloi Anderson
Kouakou, Célestin
Yao, Alphonse Kouassi
Kassé, Kouadio Bénoîtype
Ouattara, Soulemane
author_sort Kouakou, Jean-Louis
collection PubMed
description In pre-colonial and colonial times Côte d’Ivoire probably hosted one of the largest elephant populations in West Africa, resulting in the country’s name Côte d’Ivoire (in English Ivory Coast) by French settlers. Numbers declined and by the early 90s it was estimated that the total number of both savannah and forest elephants had reached 63 to 360 elephants in the entire country. Here we present updated information on the distribution and conservation status of forest elephant in Côte d’Ivoire based on multiple sources—dung counts on line transects, records of human–elephant conflict, media reports, sign and interview surveys—obtained during the period 2011–2017. We used Pearson correlation to determine the correlation between the presence of forest elephant and site variables (size of the forest, percentage of area converted into plantation, size of the forest left, size of human population inside the PA, poaching index, distance to the nearest road, population density in the Department, level of protection of the PA). To examine the effect of ecological traits on elephant extirpation, we used Principal Components Analysis (PCA) to check for multicollinearity among variables. Based on dung count elephant presence was confirmed in only 4 of the 25 protected areas surveyed. PAs with higher level of protection have higher probability to be home of elephant population. The viability of these populations is uncertain, since they have a small size and are isolated. Aggressive conservation actions including law enforcement for the protection of their remaining habitat and ranger patrolling are needed to protect the remaining forest elephant populations.
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spelling pubmed-75564832020-10-21 Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire Kouakou, Jean-Louis Gonedelé Bi, Sery Bitty, Eloi Anderson Kouakou, Célestin Yao, Alphonse Kouassi Kassé, Kouadio Bénoîtype Ouattara, Soulemane PLoS One Research Article In pre-colonial and colonial times Côte d’Ivoire probably hosted one of the largest elephant populations in West Africa, resulting in the country’s name Côte d’Ivoire (in English Ivory Coast) by French settlers. Numbers declined and by the early 90s it was estimated that the total number of both savannah and forest elephants had reached 63 to 360 elephants in the entire country. Here we present updated information on the distribution and conservation status of forest elephant in Côte d’Ivoire based on multiple sources—dung counts on line transects, records of human–elephant conflict, media reports, sign and interview surveys—obtained during the period 2011–2017. We used Pearson correlation to determine the correlation between the presence of forest elephant and site variables (size of the forest, percentage of area converted into plantation, size of the forest left, size of human population inside the PA, poaching index, distance to the nearest road, population density in the Department, level of protection of the PA). To examine the effect of ecological traits on elephant extirpation, we used Principal Components Analysis (PCA) to check for multicollinearity among variables. Based on dung count elephant presence was confirmed in only 4 of the 25 protected areas surveyed. PAs with higher level of protection have higher probability to be home of elephant population. The viability of these populations is uncertain, since they have a small size and are isolated. Aggressive conservation actions including law enforcement for the protection of their remaining habitat and ranger patrolling are needed to protect the remaining forest elephant populations. Public Library of Science 2020-10-14 /pmc/articles/PMC7556483/ /pubmed/33052917 http://dx.doi.org/10.1371/journal.pone.0232993 Text en © 2020 Kouakou et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Kouakou, Jean-Louis
Gonedelé Bi, Sery
Bitty, Eloi Anderson
Kouakou, Célestin
Yao, Alphonse Kouassi
Kassé, Kouadio Bénoîtype
Ouattara, Soulemane
Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire
title Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire
title_full Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire
title_fullStr Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire
title_full_unstemmed Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire
title_short Ivory Coast without ivory: Massive extinction of African forest elephants in Côte d’Ivoire
title_sort ivory coast without ivory: massive extinction of african forest elephants in côte d’ivoire
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7556483/
https://www.ncbi.nlm.nih.gov/pubmed/33052917
http://dx.doi.org/10.1371/journal.pone.0232993
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