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Roads that traverse through protected areas if not well managed can have adverse impact on wildlife such as road-kills which is of global conservation concern. Though mammalian road-kills have been reported in different protected areas worldwide, very little information on the problem is available in the Serengeti ecosystem. This study employed bot...
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Context 1
... study was conducted in the Serengeti ecosystem, which has several protected areas under different management categories including Serengeti National Park (SNP), Ngorongoro Conservation Area (NCA), Maswa Game Reserve (MGR), Loliondo Game Controlled Area (LGCA) and Ikorongo-Grumeti Game Reserves (IGGRs) in Tanzania, and Maasai-Mara National Reserve in Southwestern Kenya (Nkwabi et al., 2018), and lies between 1°15' to 3°30' S and 34°34' to 36°E (Nkwabi et al., 2018). However, the study focused on the main roads passing through NCA and SNP, which are parts of the Serengeti ecosystem, and was conducted between March and August 2015 (Figure 1). ...
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... sampling periods were conducted daily: the morning period (07:30-11:30 h) as the forward direction and the afternoon (14:00-18:00 h) as the backward direction along the same transect. The survey was performed along five transects each encompassed 40 km in length and included five main gravel roads transect: Naabi-Olduvai, Seronera-Naabi, Seronera-Fortikoma, Seronera-Ndabaka, and Seronera-Lobo ( Figure 1). Each of the 40 km surveyed transect was divided into 1 km length segments for sampling and in total there were 40 sampling segments. ...
Citations
... Roads can influence wild mammals by facilitating movements and providing foraging opportunities (Hill et al., 2021). Roads also can support wildlife conservation actions, including anti-poaching patrols, research, and tourism (Lyamuya et al., 2022). Tourism contributes substantially to the economic growth of sub-Saharan Africa, accounting for up to 10.3% of gross domestic product (GDP) and 11.1% of total employment in Tanzania in 2019 (Kyara et al., 2021). ...
... Roads traversing protected areas serves as a transportation routes for goods and services. Additionally, roads facilitate movements of anti-poaching patrol crews, tourists, and management personnel (Lyamuya et al., 2022). Though roads can facilitate movements and foraging opportunities for wildlife species (Hill et. ...
Roads within protected areas facilitate management and tourism but can also alter animal movements and foraging opportunities. Animal tracks observed along roads are also used to index species distributions and abundance. We investigated the influence of roads on lion (Panthera leo) movements within the Serengeti ecosystem of Tanzania. We used hourly locations from 18 GPS-collared lions to quantify the influence of temporal periodicity (diel, lunar, and seasonal) and land covers on lion road use and road crossing frequency during 2018-2019. Lion road use and crossings did not differ between day and night but varied up to 63% across lunar illumination and 82% between seasons. Greater lion road use and road crossing incidents observed during the dry season and greater lunar illumination can be attributed to reduced foraging because lion prey are less common during the dry season and acquired at a lower success rate during periods of greater lunar illumination. As lion road use varied between seasons and across lunar phases, we recommend consideration of these variations when indexing lion populations using data derived from track surveys that use roads as transects.
... Although this study focused on spotted hyenas, other large carnivore species are also victims of roadkills in the Serengeti NP (e.g. cheetah, a threatened species, Lyamuya et al., 2022). Beyond the Serengeti NP, roadkills of large carnivores have been reported in protected areas, both in Africa (although the factors shaping the roadkill patterns were not investigated, Gandiwa et al., 2020;Lala et al., 2021;Mkanda and Chansa, 2011;Nyirenda et al., 2017), and elsewhere (Baskaran and Boominathan, 2010;Mohammadi and Kaboli, 2016;Naderi et al., 2018), highlighting the global nature of the threat posed by roadkills in protected areas. ...
