© 2024, IJSRMS All Rights Reserved 1
International Journal of Scientific Research in
Multidisciplinary Studies
Vol.10, Issue.3, pp.01-07, March 2024
E-ISSN: 2454-9312 P-ISSN: 2454-6143
Available online at: www.isroset.org
Research Article
Urbanization and its Impact on Birds of Prey in Makurdi Metropolis,
Benue State, Nigeria
Isah O. Yakubu
1
, Hangeior I. Stephen
2*
, Adzaagee J. Paul
3
1
Dept of Environmental science and policy, University of South Florida, USA
2,3
Dept of Wildlife and Range Mgt, Joseph Sarwuan Tarkaa University, Makurdi, Nigeria
*Corresponding Author: hangeioriorlumun@gmail.com
Received: 18/Jan/2024; Accepted: 20/Feb/2024; Published: 31/Mar/2024. | DOI: https://doi.org/10.26438/ijsrms/v10i3.17
Abstract— Urbanization is rapidly altering ecosystems worldwide, presenting both challenges and opportunities for biodiversity
conservation. Birds of prey, as top predators and indicators of environmental health, are particularly sensitive to anthropogenic
disturbances. This study investigates Urbanization and its impact on birds of prey in the Makurdi metropolis of Benue State,
Nigeria, across several categories of land usage. The Timed Species Count technique was applied across various urban land-use
types, including Highways, Residential areas, Tertiary institutions, Commercial centers, and the Airport. Diversity among avian
species was assessed by means of the Shannon Diversity Index, Simpson's Index, Gini-Simpson Diversity Index, and Pielou's
Evenness Index. Results indicate the occurrence of various, raptor species including the Lizard Buzzard, Black Kite, Marsh
Harrier, African Goshawk, and Pearl Spotted Owlet. The Black Kite was the most abundant species, with the airport exhibiting
the highest abundance of birds of prey. Infrastructure such as masts, electric poles, and rooftops were utilized by these birds for
perching while tree species were used for nesting. Diversity indices varied across different land-use types, suggesting habitat-
specific preferences among bird of prey species. It highlights the adaptability of some bird of prey species to urban
environments, likely due to the availability of resources and nesting habitats. Although urbanization poses threats to
biodiversity, birds of prey create new habitats within urban landscapes, contributing to their resilience. Understanding species
habitat behavior is crucial for effective habitat management, conservation, and ecosystem preservation in the face of
environmental changes. Urbanization influences the spatial arrangement and population size of raptors, with some species
thriving in urban environments. The study underscores the importance of green spaces and noise levels in urban areas for avian
diversity. Recommendations include the conservation of green areas and the implementation of measures to mitigate
anthropogenic impacts on bird of prey populations.
Keywords— Birds of Prey, Urbanization, Impact, Habitat disturbance, Diversity indices, Conservation, Raptors.
1. Introduction
Urban ecosystems are playing a bigger role in influencing
ecological processes as cities spread throughout the world.
Urbanization is the most irreversible of all anthropogenic
disturbances [28-29,34]. While urbanization significantly
reduces biodiversity, many fauna species that are reliant on
the unique features of the urban environment might find new
homes and food supplies in urban and peri-urban areas. An
extinction crisis has resulted from human activity's
acceleration of biodiversity loss worldwide [5]. Many species
are declining along with the number of extinctions, which
raises the possibility that biodiversity losses could impair
ecosystem services and have an impact on human well-being
[1,35]. The dramatic fall in vulture populations over the
Indian subcontinent after diclofenac was prescribed as a cattle
medication in the 1990s [17], and the rise in rabies cases in
humans and feral dog populations that followed [13] are now
a well-known illustration of the dangers of species extinction.
In addition to the well-researched ecosystem services offered
by scavengers and predators [18], raptors, such as hawks,
harriers, kites, eagles, falcons, owls, and vultures, can shape
biological communities and serve as cultural emblems. They
are also markers of biodiversity and environmental health [9].
Raptors are more vulnerable to manmade risks and extinction
than most other bird species because of their high trophic
level and relatively delayed life history [30]. Finally, because
they can be hard to spot and occur at low population
densities, raptors are more challenging to monitor than most
other birds. Raptors are at risk from a variety of factors, such
as habitat loss or alteration, deliberate killing [4], purposeful
and accidental poisoning [11], electrocution [15], and climate
change [12]. Laws have been put in place in many nations
and areas to shield birds including raptors from these dangers.
Certain laws, like the Bald and Golden Eagle Protection Act
(1940) in the United States, are especially intended to protect
raptor species. To reduce raptor mortality, best practices and
designated habitats have been designed specifically for