Gorilla NumbersGorilla Groups

Gorilla Groups

  • Nindja group, Kahuzi-Biega (© Carsten Leidenroth)

Individual measures have to be planned for every threat. In addition, it is important to know the local conditions and factor them into the planning. Measures which were successful in one place don't necessarily work everywhere. This is why it is very important for organisations to cooperate with people who know the respecitve conditions very well.

D. R. Congo, Virunga National Park,
Mikeno Sector - tourist groups

  Feb. 2008 Aug. 2008 Feb. 2009 May 2009 Apr. 2010 June 2012 Jan. 2013 Nov. 2016
Mapuwa 12 12 14 14 16 18 18 22
Kabirizi 32 31 33 34 36 33 37 19
Munyaga 5 5 5 5 6 7 8 9
Humba 9 9 10 12 12 16 16 10
Lulengo 5 7 6 6 8 4 9 9
Rugendo 5 5 9 9 5 7 8 9
Bageni               26
Nyakamwe               11

Solitary silverback males: Ruzirabwoba, Karateka, Mareru, Pilipili, Buhanga, Bukima, Mukunda 

Rwanda, Volcano National Park -
tourist groups

  Feb. 2008 Sep. 2008 Feb. 2009 Aug. 2009 Dec. 2009 May 2011 Jan. 2014 July 2016
Suza A (Kurira) 38 40 40 41 28 30 28 17
Karisimbi (Suza B)         15 16 15 11
Amahoro 17 18 16 17 16 18 17 18
Umubano 9 9 9 11 11 12 11 12
Hirwa 12 18 13 11 12 16 9 19
Sabinyo 8 8 9 9 10 12 8 16
Gruppe 13 (Agashya) 23 25 24 26 22 25 25 20
Kwitonda 16 17 17 18 19 21 18 29
Igisha (Suza B)               26
Isimbi               14

Rwanda, Volcano National Park -
research groups

  Feb. 2008 Feb. 2009 May 2009 Dec. 2009 May 2011 Nov. 2012 Jan. 2014 Dec. 2016
Pablo 43 43 45 47 47 43 7 33
Shinda 26 28            
Isabukuru 5 7 9 10 11 11 16 19
Titus 10 10 7 6 7 9 ? 8
Kuryama 12 14 15 15 15 14 ? 8
Bwenge 9 11 10 11 11 9 11  
Inshuti   4 6 6 7      
Ntambara     10 11 11 12 17 9
Ugenda     19 12 14 9 11  
Urugamba       6 5 ?    
Musilikale             ? 13
Mafunzo               12
Giraneza               6
Iyambere               6

Uganda, Bwindi - tourist groups

  Feb. 2008 Feb. 2009 Dec. 2009 June 2010 Nov. 2010 May 2011 Jan. 2014 Aug. 2016
Mubare 10 9 5 5 5 5 9 11
Habinyanja 23 27 18 18 20 29 18 17
Rushegura 15 18 19 19 19 21 19 16
Nkuringo 18 20 20 19 19 17 19 12
Bitukura 15 13 12 12 13 14 14 13
Nshongi 28 45 34 34 25 22 18 7
Mishaya         10 12 7  
Oruzogo             23 17
Kahungye             13 17
Busingye             9 9
Bweza             10 12
Busharo               8
Bikingi               15

Uganda, Bwindi - research group

  Feb. 2009 May 2009 Aug. 2009 June 2010 May 2011 Jan. 2014 Aug. 2016
Kyagurilo 17 16 16 17 13 15 20

Uganda, Mgahinga - tourist groups

  Feb. 2008 May 2008 Sep. 2008 Feb. 2009 Juni 2010 Mai 2011 Jan. 2014 Aug. 2016
Nyakagezi* 7 7 8 8 9 9 10 10

* The group travels between Uganda, Rwanda and Congo

First Twins Born to Habituated Western Lowland Gorillas

January 2017

At the end of January 2016 the Dzanga-Sangha Protected Areas complex in the Central African Republic recorded the first ever western lowland gorilla...[details]

Gorilla Habituation for Research and Tourism in Loango

January 2017

Two components of gorilla conservation are research and tourism. Research provides the baseline information concerning the natural ecological and...[details]

The Sarambwe Reserve: Current Developments and Threats

January 2016

This article documents activities implemented in the Sarambwe Reserve and the almost continuous threats to the conservation of the reserve. It is...[details]

Rukina - Life Summary

July 2015

Rukina (© Martha M. Robbins/MPI-EVAN)

We estimate that Rukina was born around 1984. He was well identified as a group member of the Kyagurilo Group in the late 1990s when he was a young...[details]

Gorilla Group Formation and Dynamics

December 2014

Gorillas spend the major part of their life in small social groups led by a mature silverback male. Only young blackback males and mature silverback...[details]

Two Silverbacks Die in Rwanda

December 2014

The 21-year-old silverback male Umushikirano (Rano), leader of Titus group in Volcanoes National Park, was found dead on July 28, 2014 by trackers....[details]

Two Leading Silverbacks Die

June 2014

Mishaya, the leader of the Mishaya group, died on 3 February, 2014 at the age of 28 years after a short illness. Preliminary results indicate that...[details]

History of Habituated Gorillas in Bwindi

June 2014

Habituation of wild gorillas has long been a useful tool for research and conservation programs. Decisions to habituate gorillas typically reflect a...[details]

Blood Samples from Tshiaberimu Gorillas

July 2013

On a small forested island in the western region of the Democratic Republic of the Congo's Virunga National Park, a tiny population of Grauer's...[details]

The 2011 Kwita Izina

January 2012

Performance at the Kwita Izina (© Gabriele Müller-Jensen)

Rwanda demonstrates how much the country values its few remaining mountain gorillas. Every year, Kwita Izina is celebrated in June. All mountain...[details]

Key Species Monitoring Plan for Kahuzi-Biega

January 2012

Range areas of the gorilla groups (© Radar Birhashirwa Nishuli)

A monitoring plan for gorillas and elephants has just been launched in the highland sector of the Kahuzi-Biega National Park (KBNP). Its pur­pose is...[details]

Changing Ecological Conditions

December 2010

Cyril Grüter on top of a Virunga Volcano (© Cyril Grüter)

The mountain gorillas of the Virunga Volcano Massif have been the subject of intense research and conservation efforts by the Karisoke Research...[details]

Readaptation of an Injured Juvenile

December 2010

Petit Ngoû before the injury (15 August 2008) (© Chieko Ando)

Since 2003, we have been trying to habituate western gorillas (Gorilla gorilla gorilla) for the purpose of scientific research in Moukalaba-Doudou...[details]

Bai Hokou

June 2010

Shelly Masi with Makumba (© Ngombo Diedone)

The south-western region of the Central African Republic includes one of the most pristine tropical forests in the whole of Africa. Located in the...[details]

History of Mountain Gorilla Research

June 2009

Titus in 1974, 2 days old, in the arms of his mother Flossie (© Kelly Stewart)

Fifty years ago, in 1959, George Schaller left New York for Africa to begin a study of mountain gorillas that would have lasting impact. His year of...[details]

Mufanzala and Birindwa Groups

December 2009

The gorilla statue with the Vice-Governor of South Kivu, Jean Claude Kibala (the 4th person from the left) (© Radar Nishuli/Parc National de Kahuzi-Biega)

After the death of the two silverbacks of these gorilla groups on March 26th and May 30th 2009, respectively, several friends of the gorillas of the...[details]

Mufanzala

July 2009

Mufanzala's body as the rangers found it

On March 26th, 2009, the rangers and trackers of the Kahuzi-Biega National Park (KBNP) made the tragic discovery of the corpse of the silverback...[details]

Rapid Decline in the Largest Group of Mountain Gorillas

December 2008

Interaction between the Pablo group and Beetsme’s group (© Veronica Vecellio, DFGFI)

Pablo's group is the largest habituated group of mountain gorillas in the Volcanoes National Park, Rwanda, or anywhere in the world. The group was...[details]

Conflict with the Nkuringo Group

June 2008

The silverback Safari (© Michele Goldsmith)

The Nkuringo group ranges at the edge of the southeastern part of Bwindi. Its habituation started in 1996 and it was not completed until 1998; the...[details]

History of the Rugendo Family

December 2007

Available only within the Gorilla Journal PDF file[details]

The Silverback Mugaruka

June 2006

Available only within the Gorilla Journal PDF file[details]

The Disappearance of Mishebere

December 2003

Available only within the Gorilla Journal PDF file.[details]

The Mikeno Gorillas 2002

December 2002

Available only within the Gorilla Journal PDF file.[details]

The Mikeno Gorillas 1998

December 1998

Available only within the Gorilla Journal PDF file[details]

Death on Mt. Tshiaberimu

December 2009

The silverback male Kanindo from the tiny gorilla population on Mt. Tshiaberimu died after falling down a ravine. He was thought to be in his late...[details]

A New Gorilla Group in Kahuzi-Biega

December 2008

The history of the "new gorilla group" in the Kahuzi-Biega National Park dates from 2004 when WCS conducted a survey of the area. During...[details]

Maheshe's Tragic End

December 1995

Available only within the Gorilla Journal PDF file[details]

The Mikeno Gorillas 1996

December 1996

Available only within the Gorilla Journal PDF file[details]

The Death of a Patriarch

June 1997

Available only within the Gorilla Journal PDF file[details]

Mushamuka's Story

December 1997

Available only within the Gorilla Journal PDF file[details]

Nindja is Dead

December 1997

Available only within the Gorilla Journal PDF file[details]

Gorillas in Mgahinga National Park

December 1998

Available only within the Gorilla Journal PDF file[details]

Gorilla Slaughter in Kahuzi-Biega

December 1999

Available only within the Gorilla Journal PDF file[details]

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