";s:4:"text";s:24149:"Environmental Earth Sciences, 76(9), 354. Some seasonal patterns were suggested for secondary prey, however. For further information about transboundary aquifers, please see the Transboundary aquifers resources page. The dominant land cover in the northern lowland region is savanna scrub and grass. PLOS ONE promises fair, rigorous peer review, Download a GIS shapefile of the Cameroon geology and hydrogeology map. The prey items detected were categorised similarly to the prey detected from the kills. Contrary to our predictions, areas close to waterholes were highly selected for kills regardless of seasonal conditions. For medium Bovidae in the early dry season, male lions killed the three prey recorded far from a waterhole (Fig. Here, we investigate the seasonal contribution of the different herbivore species, prey preference and distribution of kills (i.e. The Lake Chad basin aquifer contains three main aquifer units: a upper Quaternary-Lower Pliocene series; the Tertiary Continental Terminal; and the lower Cretaceous series of the Hamadien Continental and the Continental Intercalaire (GWP 2013). Laboratoire de Biomtrie et Biologie Evolutive, CNRS UMR 5558, Universit Claude Bernard - Lyon 1, Bt Gregor Mendel, Villeurbanne, France, Affiliation: Climate, Hydrology and Water Resources in Cameroon. Africa Groundwater Atlas >> Hydrogeology by country, Cameroon. Our safari planners aren't available now. Cameroon, a country located in Central Africa, is one of those places. Once biomass consumption was estimated, buffalo contributed the most to lion dietary intake (58% for males and 39% for females), followed by elephant (23% for males and 20% for females) and giraffe (7% for males and 18% for females), collectively accounting for 88% and 77% of the prey biomass consumed for males and females respectively (Table 3). Sossusvlei This section provides a summary of the hydrogeology of the main aquifers in Cameroon. They can survive days or even weeks without drinking water. First, seasonal importance of each species was assessed by (i) investigating, for lion males and females separately, the frequency of occurrence of prey species at kills, and (ii) comparing seasonal results from faecal data with no sex differentiation. Prey moves between the islands and lions have to cross the water to follow. 2006. Juveniles also represented an important proportion of the giraffe killed by lions (Fig. Most groundwater in Cameroon is thought to be of good natural inorganic quality. Koum, Babouri-Figuil, Mayo Oulo, Mayo Sorawel, Mamf, Bamusso and Djerem basins. Positional data were recorded hourly during the night and retrieved at regular intervals. Finally, faecal analyses revealed a significant proportional occurrence of small antelopes in lion diet (17%). We used data from 74 faecal samples. Lions of the okavango delta. 18, ST/TCD/5. Constructing a 3D geological model from geophysical data for groundwater modelling and management in the Kribi-Campo sedimentary sub-basin, Cameroon. Four good reasons to indulge in cryptocurrency! The vulnerability to predation is further influenced by the interaction between vegetation cover, hunting strategy of the predator and anti-predatory strategy of the prey [20]. An average of 300 people depend on the water source, says Njounan Tegomo Olivier, WWF Collaborative Management Officer. What Are The Specific Water Sources The Lions Exploit. United Nations Department of Technical Cooperation for Development and Economic Commission for Africa, Natural Resources/Water Series No. The main rivers in the south of the country are the Ntem, Nyong, Sanaga, and Wouri, which flow southwestward or westward into the Gulf of Guinea. An improved water source over this period for resources leads to infanticide- the practice of killing others! They however went dysfunctional and the community faced a serious water crisis. UN Human Development Index (HDI) [highest = 1] (2014)*. Andrew J. Loveridge, The river is fed by two major tributaries (Pende River and Ouham-Pende) and drains into Chari River. In our case this is particularly true for the class small antelopes. Four different kinds of cryptocurrencies you should know. Following established methods, hair cross-sections and scale pattern imprints were prepared for microscopic analysis using a Watson Microsystem 70 microscope [28], [29]. For more information see the climate resource page. 2009). The Dja and Kad drain southeastward into the Congo River. The field assistance of Dr. Daniel Parker, B. Stapelkamp, Nicholas Elliot, Jalle Claypole, Agrippa Moyo, Lowani Mpofu and the rangers of the Hwange National Park was invaluable. What water sources do lions exploit in zimbabweabout school : Do sloths kill themselves by grabbing their arms; What water sources do lions exploit in zimbabwemaryland lacrosse camps 2021. The river is an important fishing ground for local communities. The middle Continental Terminal, of Tertiary to Quaternary age, comprises alternating sandstone and clay layers, which are 450 to 620 m from the surface (GWP 2013). Lion prey species found at kills classified in 8 groups and their respective proportions relative to frequency of occurrence. The kill sites were single kill events. Petroleum exploitation has fallen in recent decades but is still a significant contributor to the economy. The basin is shared by Chad, Niger, the Central African Republic, Nigeria, Cameroon, Algeria, Sudan and Libya. Favourable soils and climate have allowed plantation agriculture to flourish, with extensive export of cash crops, including coffee and cocoa. Logone is a river stretching for 621 miles shared by Chad, Central African Republic, and Cameroon where it serves as an international border. Wildlife Conservation Research Unit, Recanati-Kaplan Centre, Department of Zoology, Oxford University, Tubney House, Abingdon, United Kingdom, Current address: Marwell Wildlife, Colden Common, Winchester, United Kingdom, Affiliations: Lions are stalk-and-ambush hunters that use vegetative cover for concealment during hunting [43] and are known to ambush prey in habitats surrounding high-prey abundance areas [44]. 2017) and organic pollution (Sanou et al. 3A). The source of the river is in the mountainous highlands of East African rift before it eventually drains into the Atlantic Ocean. It is used to supplement the domestic and industrial water demand of Douala (Mafany and Fantong 2006). These maps and graphs were developed from the CRU TS 3.21 dataset produced by the Climatic Research Unit at the University of East Anglia, UK. David W. Macdonald, Contributed equally to this work with: The least mineralised groundwater overall is in basement aquifers. In terms of quantity, it is the second potential in Africa after the Democratic Republic of Congo. We do not have to go that far anymore says Madam Ngenge Ndo Lydie, a local restaurant owner. The river supports more than 700 species of fish, a number of which are endemic, within its various eco-regions. 1). Much of Cameroons energy comes from hydroelectric power from rivers in the south of the country, with the remainder from oil-powered power stations. It was not until the recent century where the conditions of lions in captivity have improved. Funding: The work was supported by the Darwin Initiative for Biodiversity, Disney Wildlife Conservation Foundation, SAVE Foundation, Regina B. Frankenberg Foundation the Rufford Maurice Laing Foundation and Instalite Contracting Bulawayo. Alker M. 2008. doi.org/10.2166/wpt.2020.004, Return to the index pages: Overall, relative seasonal contribution revealed that grazers, such as Suidae and zebra, contribute more to lion diet in the late dry season when these species are heavily dependent on frequent access to surface-water. Water Resources Management 24(5), 871888. Cameroon's location on the Atlantic coast in central Africa between latitude 2 and 13north, has a huge and diversified water resources potential. Hence male and female data were analysed separately. Do sloths kill themselves by grabbing their arms; In botswana lions take to the water regularly, lions do hunt elephant and hippo and in some areas of the country lions can go for moths without drinking water. 1). Borehole yields are usually 1 to 3 m/hour, in the region of the Mandara mountains, but can rarely reach 30 m/hour in places in the Kribi region, associated with large faults (UN 1988). In spite of the presence of a stand tap at the centre of the village, many villagers still rely on the water source. We used data from 245 kills and 74 faecal samples. Etosha Cameroon has seen relatively high political and social stability since independence, with the same president since 1982. Water weed which has invaded and is choking Harare's main water sources like Lake Chivero. They fill small basins at the base of trees or or in natural depressions in the landscape with rainwater or snow melt. This section provides a summary of the geology of Cameroon. Seasonal variation in relative contribution to lion kills by different prey species are shown in Fig. PLOS is a nonprofit 501(c)(3) corporation, #C2354500, based in San Francisco, California, US. The upland areas have a mild climate with high rainfall. The main rivers in the south of the country are the Ntem, Nyong, Sanaga, and Wouri, which flow southwestward or westward into the Gulf of Guinea. In Hwange, the vegetation is primarily woodland and bushland and open grassland areas are scarce but often associated with waterhole areas [49]. Zebra and Suidae showed a peak in contribution to female lion diet in the late dry season (Fig. For males, buffalo was followed by the class medium Bovidae (11%) - class dominated by sable and wildebeest for kill data -, elephant (9%) and zebra (8%), together accounting for 84% of the prey detected (Table 1). 2006. Unfortunately, it is also a country where wildlife is subject to a wide and intense array of human pressures. There is a coastal plain that extends 15-150 km inland; the south Cameroon plateau that rises from the coastal plain to more than 600 m; the Cameroon chain of mountains, hills and plateaus that extends from Mount Cameroon on the coast (Cameroon's highest point at 4,095 m) almost to Lake Chad on the northern border; the Adamawa Plateau in the centre of the country, with an average elevation of 1,100 m; and a northern lowland region, which extends from the edge of the Adamawa Plateau to Lake Chad, with an elevation of around 300 m. The climate varies across the country, controlled by topography. . Unconsolidated aquifers - including alluvium, marine and estuarine deposits - occur in many parts of the country, and are typically in hydraulic continuity with underlying bedrock aquifers. Namib Desert Samples were washed, sieved and sun dried to remove organic matter, and spread in a grid sampling tray. From buffalo to hippo and even adult elephant the there are prides that have adapted to preying on all. Sightings of lion in the hluhluwe umfolozi vary according to various factors. Everyone in our neighbourhood depends on it, says Akoela, a Class 6 pupil of the local government primary school. Overall, Jacobss indices showed avoidance of small antelopes and megaherbivores (elephant and giraffe) except for female lions which showed a slight preference for elephants in the wet season and consumed giraffe in proportion to their availability in the early and dry seasons (Fig. Since the 1980s, the government has followed policies of structural adjustment and privatisation lauded by international donors and development partners. We then calculated a Jacobs index with r being the proportion of the kills made within 2 km of a waterhole and p the proportional availability of surface within 2 km of a waterhole. In total, agriculture contributes around 40% of GDP. The river has been exploited by local communities for transport, fish, and water for irrigation. WWF findings show that cholera and typhoid are amongst the top health challenges within communities near rivers due to inaccessibility to drinkable water. We systematically searched for potential lion kill sites by identifying clusters of x:y location coordinates including 4 hours of sequential locations within a defined proximity (150 m), and these were then investigated on foot (see also [4], [24]). Volcanic centres form moderately to highly productive fractured/weathered aquifers. They rely on some of the Kalahari's plants that have also adapted to the dry conditions and either store water or have mechanisms to prevent excess water loss. Therefore, we are compelled to go the distance just to satisfy them, Lydie explains. Zeke Davidson, Proportional prey selection did not differ significantly between seasons neither for males (Friedman 2early dry-late dry=10.17, df=7, p=0.18; Friedman 2early dry-wet=9.57, df=7, p=0.21; Friedman 2late dry-wet=11.70, df=7, p=0.11), nor for females even though results approached significance level (Friedman 2early dry-late dry=12.95, df=7, p=0.07; Friedman 2early dry-wet=11.67, df=7, p=0.11; Friedman 2late dry-wet=12.45, df=7, p=0.08). For more information on the map see the, Land Cover Map of Cameroon, from the European Space Agency GlobCover 2.3, 2009. Across-ecosystems, comparisons of large mammalian carnivore diet have now provided a good understanding of the preferred prey weight range of several carnivore species [6][8], but local studies are still needed to unravel the role of environmental factors and prey availability. For female lions, kudu and to a lesser extent the group medium Bovidae are the most important secondary prey. Many springs emerge from hill slopes, some of them thermal (Mafany and Fantong 2006). Competing interests: The authors have declared that no competing interests exist. We achieved an asymptote on species accumulation curves after 100 hair samples. cameroon water resources for lions. The importance of buffalo was more pronounced for male lions, which corroborates findings from other studies [39]. In contrast, analysis of faeces tends to be biased against species with less hair, such as elephants, and very large bodied prey for which the body surface/volume ratio is smaller than for smaller species [37], and hence the likelihood of predators eating hairs is smaller. Per Capita in 2000 : 19 192 m 3 /year. Karoo 1988. Windhoek They however went dysfunctional and the community faced a serious water crisis. Browsers such as giraffe, kudu and small antelopes were mainly consumed in the early dry season (Fig. 2009. More information is available in the report Groundwater in North and West Africa: Cameroon (1988) (see References section, below). Some urban centres widely use groundwater, including Douala. Water Resources Management and Integrated Water Resources Management (IWRM) in Cameroon. These sandstones form a productive aquifer, with permeabilities of around 8 to 80 m/day; transmissivities of 300 to 1700 m/day; and a storage coefficient of 0.025. They typically form small, local aquifers, limited to areas where the rock has been fractured and weathered to increase its permeability. 62% of elephants were taken in 2005, which was a drought year (rainfall: 330 mm), concurring with increasing relative contribution of elephant to lion kills in the late dry season and peak contribution in the wet season (due to many kills in November before the first rains). There are a number of natural lakes in Cameroon. Buffalo (the highest contribution in all seasons for both sexes) showed a constant contribution to male diet throughout the seasons, and a lower contribution to female diet in the early dry season. Town , 7530, Gorilla Trekking & the Great Migration Combined, Wildebeest Migration, Ngorongoro & Zanzibar Journey, Copyright Discover Africa Safaris | Etosha National Park Wildlife | Last Updated: 15 Sep 2022, View 6 Etosha Safaris, 20 of the best Masai Mara safari tours & lodges, Our Top 10 Choices For The Best Luxury Lodges In Kruger, 10 Africa Honeymoon Destinations Youre Guaranteed To Fall In Love With. For females, buffalo were followed by kudu (16%), the class medium Bovidae (13%), giraffe (12%), zebra (9%) and elephant (8%), together accounting for 91% of the prey detected (Table 1). The remaining species contributed less than 5% per species. Most often asked questions related to bitcoin. The Zimbabwe Parks and Wildlife Management Authority is acknowledged for approving this research and for permission to publish this manuscript. Groundwater from volcanic aquifers is widely used by the bottled water industry. A number of agreements and cooperative activities exist between these countries (e.g Alker 2008). The coastal plain and southern plateau are dominated by equatorial rainforest. Average distance-to-water revealed that lions typically kill between 1 and 4 km from a waterhole, with elephant and giraffe being the species killed most often the closest to a waterhole, and kudu and small antelopes killed the furthest away (Fig. Seasonal Water Sources; Seasonal Water Sources. These are smaller sedimentary basins. Lion kills were located in a preferentially selected "zone" around artificial waterholes, suggesting that these scarce resources form passive traps for ungulate prey. In both rural and urban areas, people suffer because of the poor water quality in Cameroon. 2). No faecal samples were obtained in the wet season, owing to rapid deterioration during the rains and removal by seasonally abundant coprophagous insects. Cameroon's location on the Atlantic coast in central Africa between latitude 2 and 13north, has a huge and diversified water resources potential. What Are The Specific Water Sources The Lions Exploit. Generally sodium-bicarbonate or iron/magnesium/calcium-bicarbonate type. They are the most recent available information in the Aquastat database. The Kenya Water Resources Management Authority shall have the following powers and functions: If reproducing diagrams that include third party information, please cite both the Africa Groundwater Atlas and the third party sources. Cameroon: Sahara Desert A Threat to Livelihood and Bio-Diversity. Contrastingly during wet seasons, pools of water are more available throughout the landscape and herbivore distributions more homogeneous and dispersed. Please note that the areas of the layout diagrams are different for the engines types, see Fig. Sossusvlei Seasonal differences in the preference of prey were tested using Friedman rank sum tests. Small antelopes contributed 1% to lion diet by relative biomass consumed. Jacobs indices based on faecal data are closer to those for females based on kill data, which is to be expected as most faecal samples were collected at female kill sites. Altitude varies from 800 m to 1100 m and rainfall data were available from 1918 to 2007. Values >0 indicate preference, values <0 suggest use but avoidance. 1). GWP (Global Water Partnership). Occasionally, falling water tables in the dry season cause a reversal of the hydraulic gradient and seawater intrusion. For more information on the map see the, Sedimentary - Intergranular & Fracture Flow, Creative Commons Attribution-ShareAlike 3.0 Unported License, https://earthwise.bgs.ac.uk/index.php/Hydrogeology_of_Cameroon, irrigation water use and requirement statistics, Groundwater in North and West Africa: Cameroon, Download a GIS shapefile of the Cameroon geology and hydrogeology map, Water Resources Management and Integrated Water Resources Management (IWRM) in Cameroon, Groundwater quality in Cameroon and its vulnerability to pollution, Climate, Hydrology and Water Resources in Cameroon, Water supply, sanitation and health risks in Douala 5 municipality, Cameroon, Groundwater Need Assessment - Lake Chad Basin, Effect of diffuse recharge and wastewater on groundwater contamination in Douala, Cameroon, Constructing a 3D geological model from geophysical data for groundwater modelling and management in the Kribi-Campo sedimentary sub-basin, Cameroon, http://earthwise.bgs.ac.uk/index.php?title=Hydrogeology_of_Cameroon&oldid=57918. It provides fresh water for an entire community. It was in Etosha that a study proved that elephant can communicate using infrasonic sounds; they literally 'bounce' these off a thermal inversion layer in the atmosphere. WWF worked together with the communities to rehabilitate six stand taps in six communities," explains Njounan. The majority of the population is employed in agriculture, much of it at subsistence scale with surplus produce sold in local markets. Pronounced correctly, with a harsh and rolling g, the word sounds nothing like the perfect angles and subtle patterns this lovely antelope displays. They are described in the relevant sections below. They do not only use rivers to gather water to drink but to bathe as well. Where does the Cameroon River get its water? As such, the regular need to access drinking water constrains the movement of herbivores, and hence their distribution in the dry season [9][12]. We then converted the frequency of occurrence into biomass estimates using the average adult male and female mass (from [1], [34]). Composed mainly of Cretaceous marine sandstones and limestones, which are 1000 to 2000 m thick. Cameroon has a dense network of perennial rivers. Nonetheless, kill investigations revealed that elephant is an important prey species, contributing 23% and 20% of biomass to male and female lion diet respectively. In recent years, the former National Water Supply Company of Cameroon (SNEC: Socit Nationale des Eaux du Cameroun) was privatised to create the national water utility company, Cameroon Water Utilities Corporation (CAMWATER), which has responsibility for public water supplies in urban areas. Given the propensity of kill investigations to be biased towards large prey, this is likely an underestimation and it should be considered that juvenile zebra are highly selected for by lions. We use cookies to analyse how visitors use our website and to help us provide the best possible experience for users. That was the only source of water for the entire Mambele community before WWF rehabilitated this stand tap. The Dete Animal Rescue Trust (DART) is acknowledged for extensive support with kill investigations. Proportions of each age class were relatively constant with an increase in the predation on juveniles by males in the wet season (Fig. Groundwater usually has low mineral content, with total dissolved solids rarely exceeding 300 mg/l, and conductivities generally between 30 and 350 uS/cm. 1). Where is Cameroon in the World? Discover a faster, simpler path to publishing in a high-quality journal. There was no seasonal difference in diet composition for male lions (2early dry-late dry=4.13, df=7, p=0.76; 2early dry-wet=8.63, df=7, p=0.28; 2late dry-wet=7.85, df=7, p=0.35). 2015) of groundwater. (2013) Seasonal Diet and Prey Preference of the African Lion in a Waterhole-Driven Semi-Arid Savanna. This is due to the lower contribution of buffalo to female diet in the early dry season which is compensated by an increase in other species consumption (Table 1). A complex of granites, micaschists and migmatites. _____ _____ abiotic factor environmental conditions biotic factor. Jacobss index of seasonal prey preference estimated from confirmed lion kills and faecal samples. Largely acidic groundwater, with pH from 4 to 7. More information is available in the report Groundwater in North and West Africa: Cameroon (1988) (see References section, below). African elephants that have become accustomed to the relentless cycles of drought in Etosha and map its water sources in their memories. Swakopmund, Namibia Cameroon What Are The Specific Water Sources The Lions Exploit? Required fields are marked *. 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