Distribution and Numbers of Pygmies in Central African Forests.

Pygmy populations occupy a vast territory extending west-to-east along the central African belt from the Congo Basin to Lake Victoria. However, their numbers and actual distribution is not known precisely. Here, we undertake this task by using locational data and population sizes for an unprecedente...

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Main Authors: Jesús Olivero, John E Fa, Miguel A Farfán, Jerome Lewis, Barry Hewlett, Thomas Breuer, Giuseppe M Carpaneto, María Fernández, Francesco Germi, Shiho Hattori, Josephine Head, Mitsuo Ichikawa, Koichi Kitanaishi, Jessica Knights, Naoki Matsuura, Andrea Migliano, Barbara Nese, Andrew Noss, Dieudonné Ongbwa Ekoumou, Pascale Paulin, Raimundo Real, Mike Riddell, Edward G J Stevenson, Mikako Toda, J Mario Vargas, Hirokazu Yasuoka, Robert Nasi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4711706?pdf=render
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author Jesús Olivero
John E Fa
Miguel A Farfán
Jerome Lewis
Barry Hewlett
Thomas Breuer
Giuseppe M Carpaneto
María Fernández
Francesco Germi
Shiho Hattori
Josephine Head
Mitsuo Ichikawa
Koichi Kitanaishi
Jessica Knights
Naoki Matsuura
Andrea Migliano
Barbara Nese
Andrew Noss
Dieudonné Ongbwa Ekoumou
Pascale Paulin
Raimundo Real
Mike Riddell
Edward G J Stevenson
Mikako Toda
J Mario Vargas
Hirokazu Yasuoka
Robert Nasi
author_facet Jesús Olivero
John E Fa
Miguel A Farfán
Jerome Lewis
Barry Hewlett
Thomas Breuer
Giuseppe M Carpaneto
María Fernández
Francesco Germi
Shiho Hattori
Josephine Head
Mitsuo Ichikawa
Koichi Kitanaishi
Jessica Knights
Naoki Matsuura
Andrea Migliano
Barbara Nese
Andrew Noss
Dieudonné Ongbwa Ekoumou
Pascale Paulin
Raimundo Real
Mike Riddell
Edward G J Stevenson
Mikako Toda
J Mario Vargas
Hirokazu Yasuoka
Robert Nasi
author_sort Jesús Olivero
collection DOAJ
description Pygmy populations occupy a vast territory extending west-to-east along the central African belt from the Congo Basin to Lake Victoria. However, their numbers and actual distribution is not known precisely. Here, we undertake this task by using locational data and population sizes for an unprecedented number of known Pygmy camps and settlements (n = 654) in five of the nine countries where currently distributed. With these data we develop spatial distribution models based on the favourability function, which distinguish areas with favourable environmental conditions from those less suitable for Pygmy presence. Highly favourable areas were significantly explained by presence of tropical forests, and by lower human pressure variables. For documented Pygmy settlements, we use the relationship between observed population sizes and predicted favourability values to estimate the total Pygmy population throughout Central Africa. We estimate that around 920,000 Pygmies (over 60% in DRC) is possible within favourable forest areas in Central Africa. We argue that fragmentation of the existing Pygmy populations, alongside pressure from extractive industries and sometimes conflict with conservation areas, endanger their future. There is an urgent need to inform policies that can mitigate against future external threats to these indigenous peoples' culture and lifestyles.
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spelling doaj.art-c3430e9ef1e848b996de0495a7be81c22022-12-21T23:53:39ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01111e014449910.1371/journal.pone.0144499Distribution and Numbers of Pygmies in Central African Forests.Jesús OliveroJohn E FaMiguel A FarfánJerome LewisBarry HewlettThomas BreuerGiuseppe M CarpanetoMaría FernándezFrancesco GermiShiho HattoriJosephine HeadMitsuo IchikawaKoichi KitanaishiJessica KnightsNaoki MatsuuraAndrea MiglianoBarbara NeseAndrew NossDieudonné Ongbwa EkoumouPascale PaulinRaimundo RealMike RiddellEdward G J StevensonMikako TodaJ Mario VargasHirokazu YasuokaRobert NasiPygmy populations occupy a vast territory extending west-to-east along the central African belt from the Congo Basin to Lake Victoria. However, their numbers and actual distribution is not known precisely. Here, we undertake this task by using locational data and population sizes for an unprecedented number of known Pygmy camps and settlements (n = 654) in five of the nine countries where currently distributed. With these data we develop spatial distribution models based on the favourability function, which distinguish areas with favourable environmental conditions from those less suitable for Pygmy presence. Highly favourable areas were significantly explained by presence of tropical forests, and by lower human pressure variables. For documented Pygmy settlements, we use the relationship between observed population sizes and predicted favourability values to estimate the total Pygmy population throughout Central Africa. We estimate that around 920,000 Pygmies (over 60% in DRC) is possible within favourable forest areas in Central Africa. We argue that fragmentation of the existing Pygmy populations, alongside pressure from extractive industries and sometimes conflict with conservation areas, endanger their future. There is an urgent need to inform policies that can mitigate against future external threats to these indigenous peoples' culture and lifestyles.http://europepmc.org/articles/PMC4711706?pdf=render
spellingShingle Jesús Olivero
John E Fa
Miguel A Farfán
Jerome Lewis
Barry Hewlett
Thomas Breuer
Giuseppe M Carpaneto
María Fernández
Francesco Germi
Shiho Hattori
Josephine Head
Mitsuo Ichikawa
Koichi Kitanaishi
Jessica Knights
Naoki Matsuura
Andrea Migliano
Barbara Nese
Andrew Noss
Dieudonné Ongbwa Ekoumou
Pascale Paulin
Raimundo Real
Mike Riddell
Edward G J Stevenson
Mikako Toda
J Mario Vargas
Hirokazu Yasuoka
Robert Nasi
Distribution and Numbers of Pygmies in Central African Forests.
PLoS ONE
title Distribution and Numbers of Pygmies in Central African Forests.
title_full Distribution and Numbers of Pygmies in Central African Forests.
title_fullStr Distribution and Numbers of Pygmies in Central African Forests.
title_full_unstemmed Distribution and Numbers of Pygmies in Central African Forests.
title_short Distribution and Numbers of Pygmies in Central African Forests.
title_sort distribution and numbers of pygmies in central african forests
url http://europepmc.org/articles/PMC4711706?pdf=render
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