Diversity and Abundance of Birds of Prey and Owls in Four selected Areas in South Western Nigeria

Okosodo, E F; Orimaye, J. O.; Odewumi, O.S.

doi:10.22161/ijeab/1.2.19

Cited by 3 publications

(2 citation statements)

References 12 publications

(6 reference statements)

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“…Accipitridae with 24 species is the richest family in species number and Falconidae with 7 species. This result is in conformity with the findings of Sabo and Mohammed (2022) and Okosodo et al, (2016) who reported accipitridae as the richest family in their studies conducted at Hadejia-Nguru wetlands and South Western Nigeria respectively. It is also in agreement with Kabir (2013) who conducted his research in Bangladash and reported accipitradae as the richest family.…”

Section: Resultssupporting

confidence: 92%

Species Diversity and Relative Abundance of Birds of Prey in North Western Region of Nigeria

2023

JAEESS

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The study aimed to determine the abundance of birds of prey in in North Western Region of Nigeria, carried out between September, 2022 and January 2023, with a view to providing information in a bid to establish a baseline for conservation for this group of birds. Road transect line method was used to collect data on bird diversity, abundance and distribution and each site was surveyed twice every month during the study period. Bird observation was carried out twice daily; morning between 6:00 to 10:00 a.m. and evening between 4:00 to 6:30p.m. The species relative abundance index was used to find the relative abundance in the region, whereas Shannon- Wiener diversity index (H′) was used to determine species diversity. A total of thirty two (32) species of 3 families were recorded including species of global conservation concern during this study, indicating that the North western region of Nigeria is an important breeding, roosting, and feeding habitat for several raptor species. The findings from this study provide evidence that the areas can serve as a refuge for birds. Therefore, conservation efforts should as well be directed towards making communities view human occupied areas as a habitat for birds, and not as a lost habitat.

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Section: Resultssupporting

confidence: 92%

Species Diversity and Relative Abundance of Birds of Prey in North Western Region of Nigeria

2023

JAEESS

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“…Most nocturnal species are secretive, crepuscular and cryptic and are active at a time when access to sites is quite challenging often due to security issues. Nigeria is lacking a comprehensive inventory for nocturnal birds; however, evidence suggests a rich assemblage of owls, nightjars and other species is found across the country (Elgood et al, 1994;Okosodo et al, 2016). Some of the recorded species are African scops owl (Otus senegalensis), Standard-winged nightjar (Caprimulgus longipennis), African wood owl (Stix Woodfordii) and Western barn owl (Tyto alba) amongst others (Borrow & Demey, 2014;Elgood et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

A comparison of the sampling effectiveness of acoustic recorder, camera trap and point count methods in sampling nocturnal birds in Afrotropical landscapes

Joel,

Iniunam,

Dami

et al. 2024

Ecology and Evolution

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Conservation decisions for bird diversity in the Afrotropics are often based on ecological studies utilizing diurnal bird species likely owing to difficulties associated with sampling nocturnal birds. It is therefore important to compare the sampling effectiveness of some of the available techniques that can be used in nocturnal bird surveys to guide future long‐term survey efforts. Thus, we compared the sampling effectiveness of point count, acoustic recorder and camera trap for estimating nocturnal bird species richness and also across habitat types. We surveyed 20 points that were spaced at least 500 m apart in November and December 2021 in the Amurum Forest Reserve and its surroundings in Jos‐Nigeria. At each point, we used two camera traps, one at the ground and the other at 2.0 m. We also used one acoustic recorder as well as a 15‐min point count during each survey at each point. We encountered 11 nocturnal bird species, primarily nightjars but also owls. While we did not encounter any species with the camera traps, all 11 species were recorded using the acoustic recorder. All species except for Ketupa lacteaus were recorded in point count. Eight species were recorded in the gallery, seven in rocky and nine in savannah. Species richness and estimation using the acoustic recorder and point count were similar across habitat types. We conclude that either point count or acoustic recorders are useful for nocturnal bird surveys in Afrotropical environments. However, the choice of methods should be based on the research questions as some questions may be better answered by a specific method or even a combination of both.

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Raptors in Baturiya Birds Sanctuary Northwestern, Nigeria

SABO¹,

MOHAMMED²,

KARKAMA³

2022

JAEESS

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The dramatic increase in human pressure, deforestation and general decrease in tree cover, overgrazing and erosion, pesticide use, over-hunting and fishing, and sometimes direct persecution of predators, all impact negatively on birds of prey population. The study aimed to determine the distribution, diversity and abundance of birds of prey in Baturiya wetlands Nigeria, carried out in March to August, 2021, with a view to providing information in a bid to establish a baseline for conservation for this group of birds. Transect line method was used for the bird survey. The survey was carried out for a period of six (6) months using transect line method and each site was surveyed twice every month during the study period. Bird observation was carried out twice daily; morning between 6:00 to 10:00 a.m. and evening between 4:00 to 6:30p.m by walking slowly along the transect line. Birds were counted as birds seen and birds inflight were also counted. Transect line survey method detected a total of 431 individual birds of prey that belong to fifteen (15) species of 2 families. Accipitridae with 13 species is the richest family in species number and Falconidae with 2 species. Out of the 15 species recorded 8 are resident, 4 Palearctic migrant and 3 intra-African migrant. Three species of global conservation concern were also recorded; the Near threatened Red-necked falcon (Falco chicquera) and Pallid harrier (Circus macrourus) and the Endangered Martial eagle (Polemaetusbellicosus ). This survey shows that, the Baturiya bird sanctuary still retained a considerable number of birds of prey species that normally occur in West Africa. However, in order to maintain the bird community and other biodiversity of the wetland, the management needs to increase conservation measures that will ensure the protection of the wetlands. This can be done through training and re-training of more forest guards to ensure protection of the wetlands.

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Diversity and Abundance of Birds of Prey and Owls in Four selected Areas in South Western Nigeria

Abstract: Abstract-This

Cited by 3 publications

References 12 publications

Species Diversity and Relative Abundance of Birds of Prey in North Western Region of Nigeria

Species Diversity and Relative Abundance of Birds of Prey in North Western Region of Nigeria

A comparison of the sampling effectiveness of acoustic recorder, camera trap and point count methods in sampling nocturnal birds in Afrotropical landscapes

Raptors in Baturiya Birds Sanctuary Northwestern, Nigeria

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