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Changing Land Use Patterns and Their Impacts on Wild Ungulates in Kimana Wetland Ecosystem, Kenya

DOI: 10.1155/2014/486727

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Abstract:

In Kenya, wildlife numbers have drastically declined due to land use changes (LUCs) over the past three decades. This has affected wildlife habitats by converting them into farmlands and human settlements. This study used remote sensing data from landsat satellite to analyze the changing land use patterns between 1980 and 2013 and their impacts on wild ungulates in KWE. The objective of the study was to map out LUCs, determine the possible causes of LUCs, and examine the effects of LUCs on wild ungulates. The results showed a noticeable increase in the size of farmland, settlement, and other lands and a decline in forestland, grassland, wetland, and woodland. The main possible causes of LUC were found to be agricultural expansions, human population dynamics, economic factors, changing land tenure policy, politics, and sociocultural factors. The main effects of LUCs on wild ungulates in KWE include a decline in wild ungulate numbers, habitat destruction, increased human-wildlife conflicts, land degradation, and displacement of wild ungulates by livestock. The study recommends land use zoning of KWE and establishment of an effective and efficient wildlife benefit-sharing scheme(s). 1. Introduction Wild ungulates are hoofed wild mammals comprising large grazers and browsers. They account for the vast majority of large herbivores currently on earth and are found in nearly every biome especially in arid and semiarid grasslands [1]. Their abundance and spatial distribution is highly related to availability of quality forage and water resources [2]. Wild ungulates have high economic values as a source of revenue through consumptive and nonconsumptive utilization [3, 4]. Their resources provide environmental goods and services for the livelihood of the people, sociocultural, aesthetic, and ecological values. In Kenya, wildlife resources accounted for 70% of the gross tourism earnings, 25% of the gross domestic product (GDP), and more than 10% of total formal sector employment in 2011 [5]. Although Africa has been exceptional in retaining a considerable diversity and concentration of its wildlife compared to America and Australia, the populations of many of its wild ungulate species have declined substantially inside and outside protected areas over the past three decades [6, 7]. East Africa was incomparable in sustaining relatively intact wildlife but in the last three decades the wild ungulate population has declined sharply [8]. Kenya is ranked second highest among African countries, in bird and mammal species richness with an estimate of 394 mammals, 1100

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