Thursday, 13 February 2014

ANIMALS OF THE LOWER ZAMBEZI NATIONAL PARK By Gilbert Mwale


CARNIVORES

Lion
The lion (Panthera leo) is one of the four big cats in the genus Panthera, and a member of the family Felidae. It is the second-largest living cat after the tiger. Lions are found in most countries in sub-Saharan Africa. It prefers grasslands and open woodlands.
Lions are carnivorous in nature. They consume a wide variety of prey, from wildebeest, impala, zebra, buffalo and wild hogs to sometimes hippos. They will also feed on smaller animals such as hares, birds and reptiles. Lions are also known to attack elephants when food is scarce. They scavenge, displacing other predators (such as the Spotted Hyena) from their kills. Although Lions drink regularly when water is available, they are capable of obtaining their moisture requirements from prey and even plants. A lion may gorge itself and eat up to 30 kg in one sitting; if it is unable to consume the entire kill it will rest for a few hours before consuming more. On a hot day, the pride may retreat to shade leaving a male or two to stand guard. An adult lioness requires an average of about 5 kg of meat per day, a male about 7 kg.
Crocodile
Nile crocodiles (Crocodylus niloticus) are found most frequently in coastal lagoons, estuaries, and in the rivers bordering the equatorial forest belt.
Young hatchlings generally feed on smaller prey, preferring insects and small aquatic invertebrates before taking on fish, amphibians and small reptiles. Juveniles and sub-adults take a wider variety of prey with additions such as birds and small to mid-sized mammals. Throughout its life, both young and mature crocodiles can feed on fish and other small vertebrates on separate occasions, when large food is absent, as a side diet. Adults are apex predators and prey upon various birds, reptiles and mammals. Among the mammals, diet consists of gazelles, antelope, waterbuck, sitatunga, lechwe, wildebeest, zebra, warthog, young hippos, giraffe, buffalos, young elephants, cheetah, and even big cats such as leopards and lions.
Leopard
Dense bush in rocky surroundings and riverine forest are their favourite habitats, but leopards (Panthera pardus) adapt too many places in both warm and cold climates. Their adaptability, in fact, has helped them survive the loss of habitat to increasing human settlement.
The leopard is one of the most secretive and elusive of the large carnivores. It is the strongest climber of the large cats and capable of killing prey larger than itself. They prey on small antelopes, rodents, baboons, monkeys and birds, being quick and efficient hunters. Leopards, like other cats, spend about two thirds of their lives sprawled out in relaxed slumber.
Honey Badger
The honey badger (Mellivora capensis) may be found in almost every type of habitat, including open plains and forested country (Williams, 1967).
They are primarily carnivorous animals feeding on carrion, small rodents, scorpions, birds, lizards, tortoises and frogs. They have developed bodies that are somewhat resistant to snake toxins so they can easily hunt them. They honey badger is also known to prefer honey hence the name. They also eat fruits and vegetables such as berries, roots and bulbs.

HERBIVORES

Hippopotamus
Hippos (Hippopotamus amphibious) are plentiful in Zambia’s many waterways and often groups of over 60 can be seen in one spot. They are widespread and common in suitable inland waters and swamps. They inhabit lakes, swamps and rivers with sufficient water.
They are vegetarian animals, feeding mainly at night and returning to lounge in the water before sunrise. They pluck grass with their wide lips but are also known to eat the fruit and flowers of the sausage tree. They consume up to 60kg of grass every night. Hippos will graze about 3 km from water, although some individuals move farther inland.  An individual may walk 10 km to seek food on land, spending an average of 5-6 hours on land per night.
Common Zebra
The common zebra (Equus burchelli) occurs on open grassy plains, savannah grasslands and semi-arid grass-bush.
Zebras feed almost entirely on grasses, but may occasionally eat shrubs, herbs, twigs, leaves and bark. Their digestive systems allow them to subsist on diets of lower nutritional quality than that necessary for other herbivores.
Warthog
Warthogs (phacochoerus aethiopicus) inhabit open plains and grasslands, savannah country and semi-arid grass-bush.
The warthog is mainly a grazer and has adapted an interesting practice of kneeling on its calloused, hairy, padded knees to eat short grass. Using its snout and tusks, it also digs for bulbs, tubers and roots during the dry season.
Defassa Waterbuck
The defassa waterbuck (kobus defassa) inhabit grassy areas near water and riverine woodland. They live on the savanna.
Up to 90 percent of the waterbucks diet is grass. It also eats leaves of shrubs. The waterbuck must drink plenty of water to help digest all the vegetable protein in its diet.
African Elephant
The African elephant (Loxodonta africana) inhabits forests, savannahs, river valleys, and marshes. They may be found either in dense forests, mopane and miombo woodlands.
Elephants are herbivores; they eat grasses, bark, roots, leaves, and fruit. They consume from 200 to 300 kg of food, and up to 150 litres of water daily. Though they take in that much food their digestive system is not very efficient and only 40% of this food is properly digested.

OMNIVORES

Chacma Baboon
Chacma baboons (Papio ursinus) live mostly in the woodland savannah and highland grasslands. They never wander far from trees, or a source of water. Unlike what you would expect, baboons do not live in trees. They spend most of their time on the ground. The only time they go into trees is to escape predators, get food, or spend the night.
The Chacma baboon is omnivorous with a preference for fruits, while also eating insects, seeds, grass and smaller vertebrate animals. The Chacma baboon is generally a scavenger when it comes to game meat and rarely engages in hunting large animals.

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