Camera Trapping Uncovers Nesting Ecology and Infant Mortality Causes in the Critically Endangered Hooded Vulture (Necrosyrtes monachus) in Ghana
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ID: 288208
2025
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Abstract
The Hooded Vulture Necrosyrtes monachus, a Critically Endangered species, faces population declines across its range, yet limited data exist on its nesting ecology and causes of breeding failure. This study used camera trapping and systematic nest searches to locate and monitor nests in southern Ghana to investigate nest-site characteristics and causes of nest failure. Eight active nests were found, mostly on tall native or introduced trees, with an average tree height of 24.94 ± 3.68 m. The nests were positioned at an average hight of 18.7 ± 4.73 m above the ground, typically in a fork formed by at least three branches. Nest-sites were in areas with greater canopy cover, that were closer to water, and with taller surrounding trees compared with non-nesting sites. Nesting success was high with a 75% fledging rate from the studied nests. Camera traps revealed that egg failures at two nests were caused by inadvertent crushing of the eggs by adult vultures while arranging nest materials, and one chick mortality resulted from parental cannibalism. However, adults at one nest successfully re-laid and fledged a chick after the initial egg loss. The findings show higher nest placement in southern Ghana than in previous studies from savanna regions, reflecting differences in habitat structure and available tree species. The study also identified nest destruction by humans and targeted tree removal as major threats to nest success in the study area. The findings highlight the complexity of natural nesting environments, where even unintentional behaviours, such as egg crushing, can affect reproductive outcomes. They also underscore the need to integrate behavioural studies into vulture conservation strategies. Addressing anthropogenic threats, including persecution, nest removal, and loss of nesting and roosting trees, is critical for the survival of this Critically Endangered species.
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persistent_1761420459_68fd24ab417d1
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| Authors | Kweku Ansah Monney |
| Journal | ADVANCES IN ARCHAEOLOGICAL PRACTICE |
| Year | 2025 |
| DOI |
10.1017/S0959270925100245
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| URL | |
| Keywords | Keywords not found |
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