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[[Central Africa]] > [[Democratic Republic of the Congo]] > [[Sarambwe Nature Reserve]]

= Summary = <!-- An overview of the site, with one sentence for each section. May include a site map -->
* Mountain gorillas (''Gorilla beringei beringei'') and eastern chimpanzees (''Pan troglodytes schweinfurthii'') are present in Sarambwe Nature Reserve.
* The site is part of the Bwindi-Sarambwe ecosystem, for which the mountain gorilla population has been estimated at 459 individuals.
* The gorilla population trend is increasing.
* The site has a total size of 9 km².
* Key threats to great apes are poaching and habitat loss due to human activities encroaching the site.
* Conservation activities have focused on patrols, demarcation of boundaries, and beekeeping for income.
* The site is contiguous with [[Bwindi Impenetrable National Park]] in Uganda.

= Site characteristics = <!-- A paragraph summary of physical and geographic aspects of the site, and a table of key information -->

Sarambwe Nature Reserve is located at the border between the Democratic Republic of the Congo and Uganda. The site is contiguous with Uganda's [[Bwindi Impenetrable National Park]]. There are six species of primates present in the reserve: mountain gorilla (Gorilla beringei beringei), chimpanzee (Pan troglodytes), baboon (Papio anubis), black-and-white colobus (Colobus guereza), blue monkey (Cercopithecus mitis) and red-tailed monkey (Cercopithecus ascanius) (Kiyengo 2019).

'''Table 1. Basic site information for Sarambwe Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="basic-information"
| Area <!-- Please include units: km2/ha e.g 200ha -->
|9 km²
|-
|Coordinates
| -0.985875, 29.585890
|-
|Designation
|Nature Reserve
|-
|Habitat types <!-- List IUCN Habitat Classification 3.0 categories present (without number), see link below -->
|Subtropical/tropical montane forest, Arable land
|}
[https://www.iucnredlist.org/resources/habitat-classification-scheme IUCN habitat categories] [[Site designations]]

= Ape status = <!--An overview of ape population status (population sizes, trends, etc.), followed by a table of specific surveys and results -->

Sarambwe is adjacent to Bwindi Impenetrable National Park; together they form the Bwindi-Sarambwe ecosystem. The gorilla population occupies the entire transboundary area.

'''Table 2. Ape population estimates in Sarambwe Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table"
! Species
! Year
! Abundance estimate (95% CI)
! Density estimate [ind./ km²] (95% CI)
! Encounter rate (nests/km)
! Area
! Method
! Source
! Comments
! A.P.E.S. database ID
|-
|''Gorilla beringei beringei''
|2018
|459
|
|
|Sarambwe Nature Reserve and Bwindi Impenetrable National Park
|Index survey (reconnaissance walk)
|Hickey et al. 2019
|
|
|}

= Threats = <!-- a text overview of threats, followed by a table of key threats -->

Before 1998, when the ICCN (Congolese Institute for Nature Conservation) took over management of Sarambwe, the borders between DRC and Uganda were clearly delineated by cairns (Kiyengo 2019). However, starting from that year, the cairns and their concrete bases were removed. It was only a few years later that Ugandan nationals began encroaching gradually into the reserve, eventually occupying approximately one third of its territory. These encroachers placed border markers within the reserve, albeit inaccurately (Kiyengo 2019).
Based on the level of encroachment, the reserve can be divided into three segments (Kiyengo 2019). The southern segment of the reserve, adjacent to Bwindi, still contains pristine primary forest. However, approximately half of the central segment has been encroached upon, while nearly the entirety of the northern segment has experienced encroachment. The first two segments are frequented by gorillas and large groups of other animals. The third segment, situated north of the Sarambwe ranger post, comprises fallow fields regularly cultivated by Ugandans under the protection of their military. The encroachment led to the conversion of the forest into fields, the sawing of timber, seasonal bush fires, cultivation within the reserve, hunting, poaching and the grazing of domestic animals (Kiyengo 2019).

'''Table 3. Threats to apes in Sarambwe Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="threats-table"
!align="left"|Category <!-- PLEASE DO NOT CHANGE THE THREAT CATEGORIES -->
!Specific threats <!-- For specific threats, please use list of comma separated keywords from the IUCN list linked below -->
!Threat level <!-- For threat level, please use keywords: low, medium, high, present, absent, unknown-->
!Quantified severity <!-- Enter any available quantification of the threat, e.g., the proportion of the area affected by the threat, hunting sign encounter rates-->
!Description <!-- Add descriptive information -->
!Year of threat <!-- Enter specific year(s), “ongoing”, or “unknown”. If the threat is ongoing, please add the year of reference in parentheses -->
|-
|1. Residential & commercial development
|
|Unknown
|
|
|
|-
|2. Agriculture & aquaculture
|2.1 Annual & perennial non-timber crops
|Present (severity unknown)
|
|Encroachment of one third of the reserve, conversion of land for agriculture (Kiyengo 2019, Kiyengo 2021).
|1998-Ongoing (2021)
|-
|
|2.3 Livestock farming & ranching
|Present (severity unknown)
|
|Grazing of domestic animals (Kiyengo 2019, Kiyengo 2021).
|1998-Ongoing (2021)
|-
|3. Energy production & mining
|
|Unknown
|
|
|
|-
|4. Transportation & service corridors
|
|Unknown
|
|
|
|-
|5. Biological resource use
|5.1 Hunting & collecting terrestrial animals
|Present (severity unknown)
|
|Hunting and poaching (Kiyengo 2019, Kiyengo 2021).
|1998-Ongoing (2021)
|-
|
|5.3 Logging & wood harvesting
|Present (severity unknown)
|
|Sawing of timber (Kiyengo 2019, Kiyengo 2021).
|1998-Ongoing (2021)
|-
|6. Human intrusion & disturbance
|6.2 War, civil unrest & military exercises
|Present (severity unknown)
|
|Poaching and destructive activities resulting from civil unrest and insecurity (Kiyengo 2023).
|Ongoing (2023)
|-
|7. Natural system modifications
|7.1 Fire & fire suppression
|Present (severity unknown)
|
|Seasonal fires (Kiyengo 2019)
|1998-Ongoing (2019)
|-
|8. Invasive & other problematic species, genes, diseases
|
|Unknown
|
|
|
|-
|9. Pollution
|
|Unknown
|
|
|
|-
|10. Geological Events
|
|Absent
|
|
|
|-
| 11. Climate change & severe weather
|
|Unknown
|
|
|
|-
|12. Other options
|
|Absent
|
|
|
|-
|}
[https://www.iucnredlist.org/resources/threat-classification-scheme IUCN Threats list]

= Conservation activities = <!-- A summary of the conservation activities, followed by a table of key activities -->

Between 2002 and 2019, efforts were made to address the issue of encroachment (Kiyengo 2019). Regular reports were submitted to the relevant authorities, leading to the arrest of Ugandan farmers on multiple occasions. Additionally, various tools such as planks, machetes, hoes, and pit saws were confiscated, and dogs were euthanized. Ugandan poachers were also apprehended during this period. More recently, goats were seized and subsequently returned to their owners in Uganda after negotiations, with the Ugandan authorities and their army present. Furthermore, there was an incident where ICCN rangers were detained by Ugandan soldiers and taken into Uganda before being released (Kiyengo 2019).
During sensitization missions, it became apparent that the issue stemmed from a disagreement regarding the delineation of the border in the vicinity of the Sarambwe Reserve. The intervention of high-level authorities from both states facilitated a resolution, including the acknowledgment of the border between the two countries. A preliminary agreement on the border was reached in 2019 (Kiyengo 2019).

'''Table 4. Conservation activities in Sarambwe Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="conservation-actions-table"
!align="left"|Category <!-- PLEASE DO NOT CHANGE THE CATEGORIES -->
!Specific activity <!-- For specific threats, please use list from the list linked below, OR enter “Not reported” -->
!Description <!-- Add descriptive information -->
!Year of activity <!-- Add descriptive information -->
|-
|1. Residential & commercial development
|Not reported
|
|
|-
|2. Agriculture & aquaculture
|Not reported
|
|
|-
|3. Energy production & mining
|Not reported
|
|
|-
|4. Transportation & service corridors
|Not reported
|
|
|-
|5. Biological resource use
|5.6. Conduct regular anti-poaching patrols
|Patrols have been conducted by rangers, and when rangers were removed from their posts, trackers continued patrolling (Kiyengo 2020, Kiyengo 2021).
|1998-Ongoing (2021)
|-
|6. Human intrusion & disturbance
|Not reported
|
|
|-
|7. Natural system modifications
|Not reported
|
|
|-
|8. Invasive & other problematic species, genes, diseases
|Not reported
|
|
|-
|9. Pollution
|Not reported
|
|
|-
|10. Education & Awareness
|Not reported
|
|
|-
|11. Habitat Protection
|11.2. Legally protect primate habitat
|The site is a protected area.
|1976-Ongoing (2024)
|-
|11. Habitat Protection
|11.6. Demarcate and enforce boundaries of protected areas
|Kiyengo 2019
|2019
|-
|12. Species Management
|Not reported
|
|
|-
|13. Livelihood; Economic & Other Incentives
|Other
|Beekeeping project for income generation. The project also strengthens the collaboration between the community and the reserve. The aim of the project is to also benefit poachers, so that they trade hunting for beekeeping https://www.berggorilla.org/en/gorillas/protected-areas-for-gorillas/protected-areas-for-gorillas/bienenhaltung-rings-um-sarambwe/ (Kiyengo 2023)
|Ongoing (2023)
|-
|}
[[Conservation activities list (Junker et al. 2017)]]

= Challenges = <!-- Overview of challenges in ape conservation -->

On October 10, 2020, an assault on the Sarambwe ranger post led to the tragic loss of a ranger's life. Following this incident, the ICCN withdrew both the rangers and the stationed military personnel. As a result, illegal activities increased in some areas of the reserve. Throughout 2020, trackers who continued patrolling the site, managed to effectively safeguard it without the aid of rangers, military personnel, or firearms (Kiyengo 2020).

'''Table 5. Challenges reported for Sarambwe Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="challenges-table"
!align="left"|Challenge <!-- Do not change categories -->
!Source <!-- Source for challenge mentioned -->
|-
|Lack of transboundary cooperation / 2002-2019
|Kiyengo 2019
|-
|Insecurity / 2012-2014, 2020-Ongoing
|Kiyengo 2020
|-
|Civil unrest
|Kiyengo 2023
|-
|}

= Research activities = <!-- Overview of research activities -->

===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations -->

'''Table 6. Ape behaviors reported for Sarambwe Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="behaviors-table"
!align="left"|Behavior
!Source
|-
|Not reported
|
|-
|}

=External links=


= References =
Hickey, J.R., Uzabaho, E., Akantorana, M., Arinaitwe, J., Bakebwa, I., Bitariho, R., Eckardt, W., Gilardi, K.V., Katutu, J., Kayijamahe, C., Kierepka, E.M., Mugabukomeye, B., Musema, A., Mutabaazi, H., Robbins, M.M., Sacks, B.N., and Zikusoka, G.K. 2019. BwindiSarambwe 2018 Surveys: monitoring mountain gorillas, other select mammals, and human activities. GVTC, IGCP & partners, Kampala, Uganda, 40p.<br>
Kiyengo, C. S. (2019). End in Sight for the Conflict over the Sarambwe Nature Reserve. Volume (58), 3-5. https://www.berggorilla.org/en/gorillas/countries/artikel-countries/end-in-sight-for-the-conflict-over-the-sarambwe-nature-reserve/ <br>
Kiyengo, C. S. (2020). Deadly Attack on the Ranger Post of Sarambwe Nature Reserve. Volume (61), 13-15. https://www.berggorilla.org/en/gorillas/protected-areas-for-gorillas/protected-areas-for-gorillas/deadly-attack-on-the-sarambwe-ranger-post/ <br>
Kiyengo, C. S. (2021). A Year of Protection of the Sarambwe Nature Reserve by Trackers Unsupported by Rangers: Results and Lessons Learnt. Volume (63), 3-5. https://www.berggorilla.org/en/journal/issues/journal-63-22021/article-view/?tx_news_pi1%5Bnews%5D=1106&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=fd048c27eb99c12fc6992e8704041815 <br>
Kiyengo, C. S. (2023).The Beekeeping Project in Sarambwe Nature Reserve. Volume (66), 8-9. https://www.berggorilla.org/en/gorillas/protected-areas-for-gorillas/protected-areas-for-gorillas/bienenhaltung-rings-um-sarambwe/ <br>

<br>
'''Page completed by: '''A.P.E.S. Wiki team''' Date:''' 30/04/2024 <!-- If you don't want to add your name, you can add "A.P.E.S. Wiki team" -->

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