Global population size and conservation priority areas for the endangered Titicaca grebe

• Published in: The Journal of wildlife management 2024-11, Vol.88 (8), p.n/a
• Main Authors: Villar, D. A., Velásquez‐Noriega, Paola, Gutiérrez Tito, Edwin R., Paca‐Condori, Anahi Cosky, Moreno Terrazas, Edmundo G., Hinojosa Cárdenas, Ronald, Balcón Cuno, Alfredo, Villanueva, Carmen, Chapman, Patrick, Quispe, Jhazel, Marino, Jorgelina, Gosler, Andrew G.
• Format: Article
• Language: English
• Subjects: Bayesian analysis; Bayesian theory; Bolivia; Bycatch; Climate change; conservation; Conservation areas; Conservation status; density estimation; Endangered & extinct species; Endangered species; Fisheries; Fishing; Global warming; habitat use; habitats; Lake Titicaca; Lakes; Mathematical models; Maximum entropy; Nature conservation; Peru; Population; population census; Population decline; Population number; population size; Population statistics; Population studies; Protected areas; Protected species; Rollandia microptera; species; Surveys; watersheds; Wildlife conservation
• ISSN: 0022-541X; 1937-2817
• DOI: 10.1002/jwmg.22659

The Titicaca grebe (Rollandia microptera) is a poorly studied endangered species, only found in the Lake Titicaca watershed of Peru and Bolivia. Population surveys undertaken in the early twenty‐first century suggested that the species had declined in number by >70%. We conducted a population survey of the grebe between March and August 2022 in Peru and Bolivia, using both maximum entropy and Bayesian occupancy models to estimate factors affecting habitat suitability for the grebe. We conducted surveys between March and August 2022 in Peru and Bolivia. Contrary to the International Union for Conservation of Nature (IUCN) population estimates of