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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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Public Library of Science
2020
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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. |
format | Online Article Text |
id | pubmed-7556483 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
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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