Felipe Ennes Silva
Using population surveys and models to reassess the conservation status of an endemic Amazonian titi monkey in a deforestation hotspot
Silva, Felipe Ennes; Pacca, Luciana Gosi; Lemos, Lisley Pereira; Gusmão, Almério Câmara; da Silva, Odair Diogo; Dalponte, Júlio César; Franco, Caetano L.B.; Santana, Marcelo Ismar; Buss, Gerson; El Bizri, Hani R.
Authors
Luciana Gosi Pacca
Lisley Pereira Lemos
Almério Câmara Gusmão
Odair Diogo da Silva
Júlio César Dalponte
Caetano L.B. Franco
Marcelo Ismar Santana
Gerson Buss
Dr Hani Rocha El Bizri H.RochaElBizri@salford.ac.uk
Lecturer in Conservation Biology
Abstract
Assessing the conservation status of species is essential for implementing appropriate conservation measures. A lack of evidence of threats, rather than showing an absence of impacts, could reflect a lack of studies on how human activities could result in species population declines. The range of Prince Bernhard's titi monkey Plecturocebus bernhardi is restricted to the Arc of Deforestation, a deforestation hotspot in south-eastern Amazonia. Despite this, it is categorized as Least Concern on the IUCN Red List. To reassess the conservation status of P. bernhardi, we carried out surveys during 2015–2017 to delimit the geographical distribution of the species and estimate its population density and abundance. We then used spatial predictive modelling to examine future habitat and population loss within its range. Plecturocebus bernhardi occurs over an area of 131,295 km2. Its mean group size was 2.8 individuals/group and its density 10.8 individuals/km2 and 3.8 groups/km2. Habitat loss was estimated to be 58,365 km2 (44.5% of its current range) over the next 24 years (three P. bernhardi generations) under a conservative governance model of deforestation and 105,289 km2 (80.2%) under a business-as-usual model. These numbers indicate that P. bernhardi is threatened and should be categorized as Vulnerable, at least, using the IUCN Red List criteria. We recommend the reassessment of other Least Concern primate species from the Arc of Deforestation using a similar approach.
Citation
Silva, F. E., Pacca, L. G., Lemos, L. P., Gusmão, A. C., da Silva, O. D., Dalponte, J. C., …El Bizri, H. R. (2022). Using population surveys and models to reassess the conservation status of an endemic Amazonian titi monkey in a deforestation hotspot. Oryx, 56(6), 846-853. https://doi.org/10.1017/s0030605322000655
Journal Article Type | Article |
---|---|
Acceptance Date | May 18, 2022 |
Online Publication Date | Sep 29, 2022 |
Publication Date | 2022-11 |
Deposit Date | May 20, 2023 |
Publicly Available Date | May 24, 2023 |
Journal | Oryx |
Print ISSN | 0030-6053 |
Electronic ISSN | 1365-3008 |
Publisher | Cambridge University Press (CUP) |
Peer Reviewed | Peer Reviewed |
Volume | 56 |
Issue | 6 |
Pages | 846-853 |
DOI | https://doi.org/10.1017/s0030605322000655 |
Keywords | Nature and Landscape Conservation; Ecology, Evolution, Behavior and Systematics |
Files
Published Version
(685 Kb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
You might also like
Tech companies liable for illegal wildlife trade
(2022)
Other
Downloadable Citations
About USIR
Administrator e-mail: library-research@salford.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search