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Demographic monitoring of wild muriqui populations: Criteria for defining priority areas and monitoring intensity.

Authors :
Strier KB
Possamai CB
Tabacow FP
Pissinatti A
Lanna AM
Rodrigues de Melo F
Moreira L
Talebi M
Breves P
Mendes SL
Jerusalinsky L
Source :
PloS one [PLoS One] 2017 Dec 13; Vol. 12 (12), pp. e0188922. Date of Electronic Publication: 2017 Dec 13 (Print Publication: 2017).
Publication Year :
2017

Abstract

Demographic data are essential to assessments of the status of endangered species. However, establishing an integrated monitoring program to obtain useful data on contemporary and future population trends requires both the identification of priority areas and populations and realistic evaluations of the kinds of data that can be obtained under different monitoring regimes. We analyzed all known populations of a critically endangered primate, the muriqui (genus: Brachyteles) using population size, genetic uniqueness, geographic importance (including potential importance in corridor programs) and implementability scores to define monitoring priorities. Our analyses revealed nine priority populations for the northern muriqui (B. hypoxanthus) and nine for the southern muriqui (B. arachnoides). In addition, we employed knowledge of muriqui developmental and life history characteristics to define the minimum monitoring intensity needed to evaluate demographic trends along a continuum ranging from simple descriptive changes in population size to predictions of population changes derived from individual based life histories. Our study, stimulated by the Brazilian government's National Action Plan for the Conservation of Muriquis, is fundamental to meeting the conservation goals for this genus, and also provides a model for defining priorities and methods for the implementation of integrated demographic monitoring programs for other endangered and critically endangered species of primates.

Details

Language :
English
ISSN :
1932-6203
Volume :
12
Issue :
12
Database :
MEDLINE
Journal :
PloS one
Publication Type :
Academic Journal
Accession number :
29236726
Full Text :
https://doi.org/10.1371/journal.pone.0188922