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Western lowland gorilla population 20159/10/2023 ![]() ![]() ![]() Due to political instability in the area, current population estimates are not available.Ĭlick to see a map of the distribution of g.beringei In 1995, their population was estimated at 16,900 individuals but in the last decade their numbers are thought to have declined dramatically and the population has become increasingly fragmented. graueri - Eastern lowland gorillas occupy an area approximately 21,600 km in eastern Democratic Republic of Congo. 340 individuals are found in the 330 km Bwindi Impenetrable National Park in southwestern Uganda. 380 individuals are found in the 440 km Virunga Volcanoes region which straddles the borders of Uganda, Rwanda and the Democratic Republic of Congo. beringei - There are approximately 720 mountain gorillas in two isolated subpopulations. However, a recent census covering 47,000 km in the Republic of Congo estimates that there are approximately 125,000 western lowland gorillas in this area alone.Ĭlick to see a map of the distribution of g.gorilla The total population was assumed to be around 50,000 based on density estimates being projected across all intact habitat in western equatorial Africa and taking into account the scale of commercial hunting and outbreaks of Ebola virus. They used to be widespread throughout West and Central Africa but have become locally extinct in some areas, including in the Democratic Republic of Congo. gorilla – Western lowland gorillas are found in Gabon, Angola, Republic of Congo, Central African Republic, Cameroon and mainland Equatorial Guinea. The small and fragmented population of Cross River gorillas is now restricted to mainly highland areas due to human hunting pressures in the lowlands. diehli - 250 to 300 individuals spread between at least 10 localities on either side of the Nigeria-Cameroon border in an area approximately 8,000 km. Gorilla beringei graueri – eastern lowland gorilla (EN) Subspecies: Gorilla beringei beringei – mountain gorilla (CR) Species: Gorilla beringei - Eastern/Mountain gorilla Gorilla gorilla gorilla – western lowland gorilla (CR) Subspecies: Gorilla gorilla diehli – Cross River gorilla (CR) Species: Gorilla gorilla - Western Gorilla Lifespan: 30 to 40 years (wild), 50 years (captive).A major difference between eastern and western gorillas is that western gorillas are lighter, it is thought this helps to climb trees to eat fruit which plays a much bigger role in western gorilla’s diets. Compared to other great apes, gorillas have a much broader chest, heavier necks and fine dark brown coats. Adult males can weigh up to 200 kg while adult females weigh approximately half that. Young gorillas, from three to six years old, remind human observers of children.Gorillas are the largest primate species alive today.Despite these displays and the animals’ obvious physical power, gorillas are generally calm and nonaggressive unless they are disturbed. ![]() He may stand upright, throw things, make aggressive charges, and pound his huge chest while barking out powerful hoots or unleashing a frightening roar. Those who challenge this alpha male are apt to be cowed by impressive shows of physical power.The leader (the silverback) organizes group activities, like eating, nesting, and traveling in their home range. Western lowland gorillas live in the smallest family groups of all gorillas, with an average of 4 to 8 members in each.Gorillas harvest most of their food arboreally, but less than half of their night nests are built in trees.Both sexes will leave their birth group, females are never found alone they just travel from breeding group to breeding group. Males often travel alone and between groups at times. Before reaching the age of sexual maturity, males leave their group and go through a “bachelor stage” that can last several years either in solitary.Human hunters and leopards can also influence the movement patterns.Gorillas travel around 3 to 5 kilometres a day.Gorillas often follow seasonal patterns within their home ranges as it will follow availability of food.Gorillas are not territorial towards other gorillas.Travel in groups within their home ranges which can range from 8 to 45 square kilometres. ![]()
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