Mountain Gorillas (Gorilla Beringei Beringei)
Mountain Gorillas are a subspecies of the Eastern Gorilla (Gorilla Beringei), the other half of the subspecies are the lowland Gorillas. Gorillas are the largest of all great apes. Mountain Gorillas live in high altitudes of 8000 – 15,000 in dense forests, rain forests, bamboo forests, mixed forests, and subalpine grasslands on volcano peaks. They are non- territorial so they keep moving in their habitat to places that have more food and are more secure and they stay in a group even as they move. Mountain Gorillas cannot survive in captivity because their habitats very key to their survival.
For travelers that would like to engage in visiting gorillas, they must visit 3 countries (Uganda, Congo, and Rwanda) and engage in what is known as gorilla trekking activity or Gorilla habituation which is longer than gorilla trekking. They must purchase gorilla trekking permits which allow them to access the national parks in those three countries. Gorilla trekking permits in Uganda cost USD 600 and USD 700 starting 2020. Gorilla trekking permits in Congo Cost USD 400 and Gorilla trekking permits in Rwanda Cost 1500.
These Gorillas are very intelligent and are able to use several tools for various things; they are also gentle and generally peaceful unless disturbed or provoked. They are herbivorous animals and feed on trees, shoots and stems; they can also eat bark, roots, flowers and small invertebrates. Males can eat up to 34 kgs and females 18 kgs.
Mountain Gorillas live is close-knit cohesive families of about 5-30 individuals that are led by a dominant mature male known as a silverback. The silverback is the head of the group and decides where the group stays and eats as it also keeps peace and harmony within the group through mediating conflicts that arise in the group. The silverback is also a protector of the group, fighting for his family to the point of death, in case of an attack on his family; some silverbacks have also learned how to remove snares from the hands and feet of their group members. When it comes to eating, the silverback being the leader; always eats first.
Each family will normally have one male who is the silverback and a number of females with their infants; however it’s not unusual to find a group with more than one male. In cases of death, when a female dies her off springs are adopted by the silverback who will take them into his care until the age of maturity and when the silverback dies, the group dismantles or finds a new acceptable male; if there is an acceptable male descendant in the group, he will take over the group; however if the descendant is not acceptable, another silverback with come and take over the group killing all the infants of the dead silverback.
Each Gorilla group normally has 2 sexually mature females that are bonded to the silverback for life; a Female Gorilla gives birth once in 4 years and has a gestation period of 8.5 months. Baby Gorillas are usually born with a weight of 1.4 – 1.8 kg but grow twice as fast as the humans, so they quickly gain weight; the female breastfeeds the infant up to 3 or 4 years and in that period the infant will stay with the mother. This helps to reduce Gorilla infant deaths that come as a result of diseases and accidents.
When the young ones have left the mother the males will reach maturity at 10 years, that’s when their black back starts turning into grey; and they live the group at 11years of age to walk alone or with other lone male Gorillas for about 2-5 years until it attracts a female or females to make its own group. The females after leaving their mother will reach maturity at 6 and gradually leave at 8 to integrate into another established group or partner with a lone male to start a new group.
When two groups met the silverbacks are most likely to engage in a fight, where the winner or the stronger one takes over the other’s group.
Gorillas like to play with each other especially the infants and take a rest at midday which is a very important time for them to rejuvenate.
These animals are normally peaceful but when threatened they will charge at you and can become violent using their canines to cause deep gaping injuries that are can be fatal but it is advised that in such cases when a Gorilla charges at you, stand your ground it will eventually turn back.
Gorillas hate rain and don’t like water; in fact they will only cross a water body when there is a dry log they can walk on without getting wet. They have also been found to be afraid of chameleons and caterpillars.
Gorillas and humans have a lot of similarities and when they meet there are high chances of disease cross-transmission from humans.
Mountain Gorillas are mainly preyed on by humans who poach them and leopards that kill and eat them.
Mountain Gorillas are listed on the IUCN Red list as critically endangered species since 1996, because their shrinking numbers due to the destruction of their habitats by humans, poaching still by humans and their slow reproduction yet almost 30% of baby Gorillas don’t make it to their first birthday due to disease and accidents.
Through the worldwide Fund, Mountain Gorilla conversation programs have run in the two habitats of the Gorillas (Bwindi Impenetrable national park in Uganda and Virunga mountains in Rwanda and DRC) since the 1990s and as of 2018 the number of mountain gorillas had grown to 1004 living mountain Gorillas. Conservation efforts still continue today with initiatives like Mountain Gorilla Habitat Preservation, strengthening policies and strategies against Gorilla poaching, e.t.c.
You can join the mountain gorilla conservation movement or just take a trip to see these great apes in their elements as you visit their habitats in Uganda, Rwanda and the Democratic Republic of Congo.
- Bwindi Impenetrable National Park Uganda
- Mgahinga national park Uganda
- Virunga National park DRC
- Volcanoes national park Rwanda