Jump to content

UFA 10-063 ZICGC3: Difference between revisions

From The APES Atlas
VisualWikitext
Created page with "Central Africa > Cameroon > UFA 10-063_ZICGC3 '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/UFA_10-063_ZICGC3?_x_tr_sl=auto&_x_tr_tl=fr&_x_tr_hl=en&_x_tr_pto=wapp Français]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/UFA_10-063_ZICGC3?_x_tr_sl=auto&_x_tr_tl=pt&_x_tr_hl=en&_x_tr_pto=wapp Português]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/UFA_10-063_ZICGC3?_x_tr_sl=auto&_x_tr_tl=es..."
 
No edit summary
Tag: Manual revert
 
(11 intermediate revisions by the same user not shown)
Line 10: Line 10:
* In 2018, the great ape population was estimated at 2,546 (1,626-3,985) individuals.
* In 2018, the great ape population was estimated at 2,546 (1,626-3,985) individuals.
* The population trends are unknown.
* The population trends are unknown.




Line 20: Line 17:
= Site characteristics =
= Site characteristics =


The site exhibits notable ecological dynamics, particularly concerning elephant populations and primate species. Over time, elephant densities have increased between 2015 and 2018. The site supports diverse wildlife, including chimpanzees, gorillas, and various duiker species. However, the distribution of elephants and other species has shifted over time, due to anthropogenic pressures such as hunting and habitat modification. The habitat consists of primary and secondary forests, swamps, and human-altered landscapes, making it a crucial area for conservation. Human activities have influenced species movement, emphasizing the need for targeted conservation efforts to mitigate habitat fragmentation and ensure sustainable wildlife populations (Beukou et al. 2019).
The site exhibits notable ecological dynamics, particularly concerning elephant populations and primate species. Over time, elephant densities have increased between 2015 and 2018. The site supports diverse wildlife, including chimpanzees, gorillas, and various duiker species. However, the distribution of elephants and other species has shifted over time, due to anthropogenic pressures such as hunting and habitat modification. The habitat consists of primary and secondary forests, swamps, and human-altered landscapes, making it a crucial area for conservation. Human activities have influenced species movement, emphasizing the need for targeted conservation efforts to mitigate habitat fragmentation and ensure sustainable wildlife populations ([[#R01848|Beukou et al. 2019]]).




Line 45: Line 42:


[[Types of sites]] [[Governance types]] [[Habitat types]]  
[[Types of sites]] [[Governance types]] [[Habitat types]]  
= Ape status =
= Ape status =


Line 65: Line 63:
|-
|-
|''Gorilla gorilla gorilla''
|''Gorilla gorilla gorilla''
|2015
|2018
|
|
|
|
|2.10 (1.39-3.21)
|1.50 (0.92-2.43)
|2,444 (1,607-3716)
|1,254 (772-2,038)
|UFA 10-063_ZICGC3 (83.21 km²)
|UFA 10-063_ZICGC3 (83.21 km²)
|Line transects
|Line transects
|Distance sampling with adopted decay time
|Distance sampling with adopted decay time
|Beukou et al. 2019, WWF Cameroon
|[[#R01848|Beukou et al. 2019]], WWF Cameroon
|
|
|
|CMR0058, CMR0128<div class="mw-collapsible mw-collapsed" data-expandtext="+5 more" data-collapsetext="less">CMR0132, CMR0135, CMR0138, CMR0150, CMR0153</div>
|-
|-
|''Pan troglodytes troglodytes'' & ''Gorilla gorilla gorilla''
|''Pan troglodytes troglodytes'' & ''Gorilla gorilla gorilla''
Line 86: Line 84:
|Line transects
|Line transects
|Distance sampling with adopted decay time
|Distance sampling with adopted decay time
|Beukou et al. 2019, WWF Cameroon
|[[#R01848|Beukou et al. 2019]], WWF Cameroon
|
|
|
|CMR0058, CMR0128<div class="mw-collapsible mw-collapsed" data-expandtext="+5 more" data-collapsetext="less">CMR0132, CMR0135, CMR0138, CMR0150, CMR0153</div>
|-
|-
|''Gorilla gorilla gorilla''
|''Gorilla gorilla gorilla''
|2018
|2015
|
|
|
|
|1.50 (0.92-2.43)
|2.10 (1.39-3.21)
|1,254 (772-2,038)
|2,444 (1,607-3716)
|UFA 10-063_ZICGC3 (83.21 km²)
|UFA 10-063_ZICGC3 (83.21 km²)
|Line transects
|Line transects
|Distance sampling with adopted decay time
|Distance sampling with adopted decay time
|Beukou et al. 2019, WWF Cameroon
|[[#R01848|Beukou et al. 2019]], WWF Cameroon
|
|
|
|CMR0058, CMR0128<div class="mw-collapsible mw-collapsed" data-expandtext="+5 more" data-collapsetext="less">CMR0132, CMR0135, CMR0138, CMR0150, CMR0153</div>
|-
|-
|''Pan troglodytes troglodytes'' & ''Gorilla gorilla gorilla''
|''Pan troglodytes troglodytes'' & ''Gorilla gorilla gorilla''
Line 112: Line 110:
|Line transects
|Line transects
|Distance sampling with adopted decay time
|Distance sampling with adopted decay time
|Beukou et al. 2019, WWF Cameroon
|[[#R01848|Beukou et al. 2019]], WWF Cameroon
|
|
|
|CMR0058, CMR0128<div class="mw-collapsible mw-collapsed" data-expandtext="+5 more" data-collapsetext="less">CMR0132, CMR0135, CMR0138, CMR0150, CMR0153</div>
|}
|}


[[Sampling methods]] [[Analytical frameworks]]  
[[Sampling methods]] [[Analytical frameworks]]  
= Threats =
= Threats =


Line 133: Line 132:
|3.2 Mining & quarrying
|3.2 Mining & quarrying
|High (more than 70% of population affected)
|High (more than 70% of population affected)
|Mining on the periphery of the park destroys or disturbs the natural wildlife habitats (Beukou et al. 2019).
|Mining on the periphery of the park destroys or disturbs the natural wildlife habitats ([[#R01848|Beukou et al. 2019]]).
|2002-Ongoing (2018)
|2002-Ongoing (2018)
|-
|4 Transportation & service corridors
|4.1 Roads & railroads
|Present (unknown severity)
|Presence of roads and railroads around the periphery zone (UFA10-063_ZICGC3) of the Lobeke NP ([[#R01848|Beukou et al. 2019]]).
|Ongoing (2018)
|-
|-
|5 Biological resource use
|5 Biological resource use
|5.1 Hunting & collecting terrestrial animals
|5.1 Hunting & collecting terrestrial animals
|Medium (30-70% of population affected)
|Medium (30-70% of population affected)
|Hunting is present in the area (Beukou et al. 2019). Presence of sport hunting on the periphery of the park does not respect sustainable management principles (Beukou et al. 2019).
|Hunting is present in the area ([[#R01848|Beukou et al. 2019]]). Presence of sport hunting on the periphery of the park does not respect sustainable management principles ([[#R01848|Beukou et al. 2019]]).
|2002-Ongoing (2018)
|-
|6 Human intrusions & disturbance
|6.3 Other human disturbances
|High (more than 70% of population affected)
|The illegal circulation of war weapons in the TNS landscape intensifies the high poaching of elephants for ivory trade as well as gorilla and chimpanzees although elephants remain the main target during this survey years. More over, traps, cartridge cases, camp sites are present pose threats to this site (Beukou et al. 2019).
|2002-Ongoing (2018)
|2002-Ongoing (2018)
|-
|-
Line 151: Line 150:
|5.3 Logging & wood harvesting
|5.3 Logging & wood harvesting
|High (more than 70% of population affected)
|High (more than 70% of population affected)
|The presence of human activities, such as logging,  threatens the integrity of forest habitats of the Lobeke landscape (Beukou et al. 2019).
|The presence of human activities, such as logging,  threatens the integrity of forest habitats of the Lobeke landscape ([[#R01848|Beukou et al. 2019]]).
|2015-Ongoing (2018)
|2015-Ongoing (2018)
|-
|-
|4 Transportation & service corridors
|6 Human intrusions & disturbance
|4.1 Roads & railroads
|6.3 Other human disturbances
|Present (unknown severity)
|High (more than 70% of population affected)
|Presence of roads and railroads around the periphery zone (UFA10-063_ZICGC3) of the Lobeke NP (Beukou et al. 2019).
|The illegal circulation of war weapons in the TNS landscape intensifies the high poaching of elephants for ivory trade as well as gorilla and chimpanzees although elephants remain the main target during this survey years. More over, traps, cartridge cases, camp sites are present pose threats to this site ([[#R01848|Beukou et al. 2019]]).
|Ongoing (2018)
|2002-Ongoing (2018)
|}
|}


[[Threats]]  
[[Threats]]  
= Conservation activities =
= Conservation activities =


Line 182: Line 182:


[[Conservation activities]]  
[[Conservation activities]]  
= Challenges =
= Challenges =


Line 192: Line 193:
!Source
!Source
!Year(s)
!Year(s)
|-
|2 Resources and capacity
|2.2 Lack of staff
|[[#R01848|Beukou et al. 2019]]
|2015-Ongoing (2018)
|-
|-
|2 Resources and capacity
|2 Resources and capacity
|2.6 Lack of biomonitoring/survey data
|2.6 Lack of biomonitoring/survey data
|Beukou et al. 2019
|[[#R01848|Beukou et al. 2019]]
|2000-Ongoing (2018)
|2000-Ongoing (2018)
|-
|2 Resources and capacity
|2.2 Lack of staff
|Beukou et al. 2019
|2015-Ongoing (2018)
|-
|-
|3 Engaged community
|3 Engaged community
|3.1 General lack of community engagement or support
|3.1 General lack of community engagement or support
|Beukou et al. 2019
|[[#R01848|Beukou et al. 2019]]
|2015-Ongoing (2018)
|2015-Ongoing (2018)
|-
|-
|3 Engaged community
|3 Engaged community
|3.2 Lack of youth engagement
|3.2 Lack of youth engagement
|Beukou et al. 2019
|[[#R01848|Beukou et al. 2019]]
|2015-Ongoing (2018)
|2015-Ongoing (2018)
|-
|-
|6 Safety and stability
|6 Safety and stability
|6.2 Insecurity
|6.2 Insecurity
|Beukou et al. 2019
|[[#R01848|Beukou et al. 2019]]
|2015-Ongoing (2018)
|2015-Ongoing (2018)
|}
|}


[[Challenges]]  
[[Challenges]]  
= Enablers =
= Enablers =


Line 230: Line 232:
!Source
!Source
!Year(s)
!Year(s)
|-
|1 Site management
|1.3 Adaptive management practices
|[[#R01848|Beukou et al. 2019]]
|2015-Ongoing (2018)
|-
|-
|2 Resources and capacity
|2 Resources and capacity
|2.6 External partnerships that add expertise or resources
|2.6 External partnerships that add expertise or resources
|Beukou et al. 2019
|[[#R01848|Beukou et al. 2019]]
|2015-Ongoing (2018)
|-
|1 Site management
|1.3 Adaptive management practices
|Beukou et al. 2019
|2015-Ongoing (2018)
|2015-Ongoing (2018)
|}
|}


[[Enablers]]  
[[Enablers]]  
= Research activities =
= Research activities =


Research activities in UFA 10-063/ZICGC 3 have focused primarily on the abundance, distribution, and habitat usage of great apes, including gorillas and chimpanzees, in the context of human impact and conservation strategies. Data collected through transects have recorded signs of human activities affecting species distribution, with notable declines in density compared to nearby protected areas like Lobeke National Park (Beukou et al. 2019).
Research activities in UFA 10-063/ZICGC 3 have focused primarily on the abundance, distribution, and habitat usage of great apes, including gorillas and chimpanzees, in the context of human impact and conservation strategies. Data collected through transects have recorded signs of human activities affecting species distribution, with notable declines in density compared to nearby protected areas like Lobeke National Park ([[#R01848|Beukou et al. 2019]]).
 


= Documented behaviours =
= Documented behaviours =




Line 253: Line 258:
= Exposure to climate change impacts =
= Exposure to climate change impacts =


As part of a study on the exposure of African great ape sites to climate change impacts, Kiribou et al. subm. extracted climate data and data on projected extreme climate impact events for the site. Climatological characteristics were derived from observation-based climate data provided by the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP, www.isimip.org). Parameters were calculated as the average across each 30-year period. For 1981-2010, the EWEMBI dataset from ISIMIP2a was used. For the two future periods (2021-2050 and 2071-2099) ISIMIP2b climate data based on four CMIP5 global climate models were used. For future projections, two Representative Concentration Pathways (RCP) were used. RCP 2.6 is a scenario with strong mitigation measures in which global temperatures would likely rise below 2C. RCP 6.0 is a scenario with medium emissions in which global temperatures would likely rise up to 3C by 2100. For the number of days with heavy precipitation events, the 98th percentile of all precipitation days (>1mm/d) was calculated for the 1979-2013 reference period as a threshold for a heavy precipitation event. Then, for each year, the number of days above that threshold was derived. The figures on temperature and precipitation anomaly show the deviation from the mean temperature and mean precipitation for the 1979-2013 reference period.
As part of a study on the exposure of African great ape sites to climate change impacts, [[#R02331|Kiribou et al. (2024)]] extracted climate data and data on projected extreme climate impact events for the site. Climatological characteristics were derived from observation-based climate data provided by the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP, www.isimip.org). Parameters were calculated as the average across each 30-year period. For 1981-2010, the EWEMBI dataset from ISIMIP2a was used. For the two future periods (2021-2050 and 2071-2099) ISIMIP2b climate data based on four CMIP5 global climate models were used. For future projections, two Representative Concentration Pathways (RCP) were used. RCP 2.6 is a scenario with strong mitigation measures in which global temperatures would likely rise below 2C. RCP 6.0 is a scenario with medium emissions in which global temperatures would likely rise up to 3C by 2100. For the number of days with heavy precipitation events, the 98th percentile of all precipitation days (>1mm/d) was calculated for the 1979-2013 reference period as a threshold for a heavy precipitation event. Then, for each year, the number of days above that threshold was derived. The figures on temperature and precipitation anomaly show the deviation from the mean temperature and mean precipitation for the 1979-2013 reference period.


The estimated exposure to future extreme climate impact events (crop failure, drought, river flood, wildfire, tropical cyclone, and heatwave) is based on a published dataset by Lange et al. 2020 derived from ISIMIP2b data. The same global climate models and RCPs as described above were used. Within each 30-year period, the number of years with an extreme event and the average proportion of the site affected were calculated (see Kiribou et al. subm. for details).
The estimated exposure to future extreme climate impact events (crop failure, drought, river flood, wildfire, tropical cyclone, and heatwave) is based on a published dataset by Lange et al. 2020 derived from ISIMIP2b data. The same global climate models and RCPs as described above were used. Within each 30-year period, the number of years with an extreme event and the average proportion of the site affected were calculated ([[#R02331|Kiribou et al. 2024]]).


'''Table 8. Estimated past and projected climatological characteristics in UFA 10-063_ZICGC3'''
'''Table 8. Estimated past and projected climatological characteristics in UFA 10-063_ZICGC3'''
Line 282: Line 287:
|Max no. consecutive dry days (per year)
|Max no. consecutive dry days (per year)
|24.9
|24.9
|19.600000000000001
|19.6
|21.9
|21.9
|17.399999999999999
|17.4
|20.5
|20.5
|-
|-
Line 292: Line 297:
|8.9
|8.9
|7.9
|7.9
|9.6999999999999993
|9.7
|}
|}


Line 369: Line 374:
|}
|}


<div><ul><li style="display: inline-block; vertical-align: top;"> [[File:PrecipAnomaly_UFA_10-063_ZICGC_3.png| 450px | thumb| none | Precipitation anomaly in UFA 10-063_ZICGC3]] </li><li style="display: inline-block; vertical-align: top;"> [[File:TempAnomaly_UFA_10-063_ZICGC_3.png | 450px | thumb| none | Temperature anomaly in UFA 10-063_ZICGC3]] </li></ul></div>


= External links =
= External links =
Line 376: Line 383:
= References =
= References =


Beukou, B., Sombambo, M., Nzooh, Z., N’Goran, K. P., Hessana, D., Sebogo, L., & Mengamenya, A. (2019). Population dynamics of large and medium-sized mammals in the Cameroon segment of the Sangha Tri-National (TNS) landscape (MINFOF–WWF technical report). MINFOF – WWF.
<span id="R01848"></span>Beukou, B., Sombambo, M., Nzooh, Z., N'Goran, K. P., Hessana, D., Sebogo, L., & Mengamenya, A. (2019). Dynamique des populations de grands et moyens mammiferes dans le segment Cameroun du paysage Tri-National dela Sangha. WWF Report and MINFOP.
 
<span id="R02331"></span>Kiribou, R., Tehoda, P., Chukwu, O., Bempah, G., Kühl, H. S., Ferreira, J., …, & Heinicke, S. (2024). Exposure of African ape sites to climate change impacts. ''PLOS Climate'', 3(2), e0000345. [https://doi.org/10.1371/journal.pclm.0000345 doi:10.1371/journal.pclm.0000345]






'''Page created by: '''Onella Mundi''' Date:''' 2024-11-25 10:07:00
'''Page created by: '''Onella Mundi''' Date:''' 2024-11-25 10:07:00

Latest revision as of 17:55, 15 October 2026

Central Africa > Cameroon > UFA 10-063_ZICGC3

Français | Português | Español | Bahasa Indonesia | Melayu

Summary

Loading map...
  • Central chimpanzees (Pan troglodytes troglodytes) & western lowland gorillas (Gorilla gorilla gorilla) are present in UFA 10-063_ZICGC3 (Forest Management Unit).
  • In 2018, the great ape population was estimated at 2,546 (1,626-3,985) individuals.
  • The population trends are unknown.



Site characteristics

The site exhibits notable ecological dynamics, particularly concerning elephant populations and primate species. Over time, elephant densities have increased between 2015 and 2018. The site supports diverse wildlife, including chimpanzees, gorillas, and various duiker species. However, the distribution of elephants and other species has shifted over time, due to anthropogenic pressures such as hunting and habitat modification. The habitat consists of primary and secondary forests, swamps, and human-altered landscapes, making it a crucial area for conservation. Human activities have influenced species movement, emphasizing the need for targeted conservation efforts to mitigate habitat fragmentation and ensure sustainable wildlife populations (Beukou et al. 2019).


Table 1. Basic site information for UFA 10-063_ZICGC3

Species Pan troglodytes troglodytes, Gorilla gorilla gorilla
Area 838.18 km²
Coordinates Lat: 2.235082 , Lon: 15.614917
Type of site Logging concession and community managed hunting interest zone
Habitat types Subtropical/tropical moist lowland forest, Subtropical/tropical swamp forest
Type of governance

Types of sites Governance types Habitat types

Ape status

Table 2. Ape population estimates reported for UFA 10-063_ZICGC3

Species Year Occurrence Encounter or vistation rate (nests/km; ind/day) Density estimate [ind./ km²] (95% CI) Abundance estimate (95% CI) Survey area Sampling method Analytical framework Source Comments A.P.E.S. database ID
Gorilla gorilla gorilla 2018 1.50 (0.92-2.43) 1,254 (772-2,038) UFA 10-063_ZICGC3 (83.21 km²) Line transects Distance sampling with adopted decay time Beukou et al. 2019, WWF Cameroon CMR0058, CMR0128
CMR0132, CMR0135, CMR0138, CMR0150, CMR0153
Pan troglodytes troglodytes & Gorilla gorilla gorilla 2015 1.66 (1.06-2.60) 1,387 (885-2,175) UFA 10-063_ZICGC3 (83.21 km²) Line transects Distance sampling with adopted decay time Beukou et al. 2019, WWF Cameroon CMR0058, CMR0128
CMR0132, CMR0135, CMR0138, CMR0150, CMR0153
Gorilla gorilla gorilla 2015 2.10 (1.39-3.21) 2,444 (1,607-3716) UFA 10-063_ZICGC3 (83.21 km²) Line transects Distance sampling with adopted decay time Beukou et al. 2019, WWF Cameroon CMR0058, CMR0128
CMR0132, CMR0135, CMR0138, CMR0150, CMR0153
Pan troglodytes troglodytes & Gorilla gorilla gorilla 2018 3.03 (1.94-4.75) 2,546 (1,626-3,985) UFA 10-063_ZICGC3 (83.21 km²) Line transects Distance sampling with adopted decay time Beukou et al. 2019, WWF Cameroon CMR0058, CMR0128
CMR0132, CMR0135, CMR0138, CMR0150, CMR0153

Sampling methods Analytical frameworks

Threats

Table 3. Threats to apes reported for UFA 10-063_ZICGC3

Category Specific threats Threat level Description Year of threat
3 Energy production & mining 3.2 Mining & quarrying High (more than 70% of population affected) Mining on the periphery of the park destroys or disturbs the natural wildlife habitats (Beukou et al. 2019). 2002-Ongoing (2018)
4 Transportation & service corridors 4.1 Roads & railroads Present (unknown severity) Presence of roads and railroads around the periphery zone (UFA10-063_ZICGC3) of the Lobeke NP (Beukou et al. 2019). Ongoing (2018)
5 Biological resource use 5.1 Hunting & collecting terrestrial animals Medium (30-70% of population affected) Hunting is present in the area (Beukou et al. 2019). Presence of sport hunting on the periphery of the park does not respect sustainable management principles (Beukou et al. 2019). 2002-Ongoing (2018)
5 Biological resource use 5.3 Logging & wood harvesting High (more than 70% of population affected) The presence of human activities, such as logging, threatens the integrity of forest habitats of the Lobeke landscape (Beukou et al. 2019). 2015-Ongoing (2018)
6 Human intrusions & disturbance 6.3 Other human disturbances High (more than 70% of population affected) The illegal circulation of war weapons in the TNS landscape intensifies the high poaching of elephants for ivory trade as well as gorilla and chimpanzees although elephants remain the main target during this survey years. More over, traps, cartridge cases, camp sites are present pose threats to this site (Beukou et al. 2019). 2002-Ongoing (2018)

Threats

Conservation activities

Table 4. Conservation activities reported for UFA 10-063_ZICGC3

Category Specific activity Description Implementing organization(s) Year of activity
2 Counter-wildlife crime 2.3 Conduct regular anti-poaching patrols During data collection, teams led by eco-guards assisted by military personnel consistently covered the study area. resulting in the seizure of 14 weapons (13 12-gauge & 01 AK47), 211 rounds of AKA 47 ammunition and more than 2,500 steel wire booby traps dismantled. Although the principal objectif was not to combat poaching. A significant number of seizures of poaching materials were also recorded during the reconnaissance walks carried out in 2016 in Lobeke NP and its peripheral zone (UFA10-063_ZICGC3) in 2015. WWF Cameroon Country Program and Lobeke National Park Conservation Office 2015-Ongoing (2018)

Conservation activities

Challenges

Table 5. Challenges reported for UFA 10-063_ZICGC3

Challenges Specific challenges Source Year(s)
2 Resources and capacity 2.2 Lack of staff Beukou et al. 2019 2015-Ongoing (2018)
2 Resources and capacity 2.6 Lack of biomonitoring/survey data Beukou et al. 2019 2000-Ongoing (2018)
3 Engaged community 3.1 General lack of community engagement or support Beukou et al. 2019 2015-Ongoing (2018)
3 Engaged community 3.2 Lack of youth engagement Beukou et al. 2019 2015-Ongoing (2018)
6 Safety and stability 6.2 Insecurity Beukou et al. 2019 2015-Ongoing (2018)

Challenges

Enablers

Table 6. Enablers reported for UFA 10-063_ZICGC3

Enablers Specific enablers Source Year(s)
1 Site management 1.3 Adaptive management practices Beukou et al. 2019 2015-Ongoing (2018)
2 Resources and capacity 2.6 External partnerships that add expertise or resources Beukou et al. 2019 2015-Ongoing (2018)

Enablers

Research activities

Research activities in UFA 10-063/ZICGC 3 have focused primarily on the abundance, distribution, and habitat usage of great apes, including gorillas and chimpanzees, in the context of human impact and conservation strategies. Data collected through transects have recorded signs of human activities affecting species distribution, with notable declines in density compared to nearby protected areas like Lobeke National Park (Beukou et al. 2019).


Documented behaviours

Exposure to climate change impacts

As part of a study on the exposure of African great ape sites to climate change impacts, Kiribou et al. (2024) extracted climate data and data on projected extreme climate impact events for the site. Climatological characteristics were derived from observation-based climate data provided by the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP, www.isimip.org). Parameters were calculated as the average across each 30-year period. For 1981-2010, the EWEMBI dataset from ISIMIP2a was used. For the two future periods (2021-2050 and 2071-2099) ISIMIP2b climate data based on four CMIP5 global climate models were used. For future projections, two Representative Concentration Pathways (RCP) were used. RCP 2.6 is a scenario with strong mitigation measures in which global temperatures would likely rise below 2C. RCP 6.0 is a scenario with medium emissions in which global temperatures would likely rise up to 3C by 2100. For the number of days with heavy precipitation events, the 98th percentile of all precipitation days (>1mm/d) was calculated for the 1979-2013 reference period as a threshold for a heavy precipitation event. Then, for each year, the number of days above that threshold was derived. The figures on temperature and precipitation anomaly show the deviation from the mean temperature and mean precipitation for the 1979-2013 reference period.

The estimated exposure to future extreme climate impact events (crop failure, drought, river flood, wildfire, tropical cyclone, and heatwave) is based on a published dataset by Lange et al. 2020 derived from ISIMIP2b data. The same global climate models and RCPs as described above were used. Within each 30-year period, the number of years with an extreme event and the average proportion of the site affected were calculated (Kiribou et al. 2024).

Table 8. Estimated past and projected climatological characteristics in UFA 10-063_ZICGC3

Value 1981-2010 2021-2050, RCP 2.6 2021-2050, RCP 6.0 2071-2099, RCP 2.6 2071-2099, RCP 6.0
Mean temperature [C] 24.3 25.7 25.6 26 27
Annual precipitation [mm] 1434 1451 1477 1505 1486
Max no. consecutive dry days (per year) 24.9 19.6 21.9 17.4 20.5
No. days with heavy precipitation (per year) 6.5 7.7 8.9 7.9 9.7


Table 9. Projected exposure of apes to extreme climate impact events in UFA 10-063_ZICGC3

Type No. of years with event (2021-2050, RCP 2.6) % of site exposed (2021-2050, RCP 2.6) No. of years with event (2021-2050, RCP 6.0) % of site exposed (2021-2050, RCP 6.0) No. of years with event (2070-2099, RCP 2.6) % of site exposed (2070-2099, RCP 2.6) No. of years with event (2070-2099, RCP 6.0) % of site exposed (2070-2099, RCP 6.0)
Crop failure 5.5 0 4 0 7.5 0 13.5 0
Drought 0 0 0 0 0 0 0 0
Heatwave 3 50 2.5 100 4 100 10.5 100
River flood 0 0 1.25 0.41 0.5 0.13 1 0.35
Tropical cyclone 0 0 0 0 0 0 0 0
Wildfire 30 0.67 30 0.67 29 0.44 29 0.62


  • Precipitation anomaly in UFA 10-063_ZICGC3
  • Temperature anomaly in UFA 10-063_ZICGC3

External links

References

Beukou, B., Sombambo, M., Nzooh, Z., N'Goran, K. P., Hessana, D., Sebogo, L., & Mengamenya, A. (2019). Dynamique des populations de grands et moyens mammiferes dans le segment Cameroun du paysage Tri-National dela Sangha. WWF Report and MINFOP.

Kiribou, R., Tehoda, P., Chukwu, O., Bempah, G., Kühl, H. S., Ferreira, J., …, & Heinicke, S. (2024). Exposure of African ape sites to climate change impacts. PLOS Climate, 3(2), e0000345. doi:10.1371/journal.pclm.0000345


Page created by: Onella Mundi Date: 2024-11-25 10:07:00

Retrieved from "https://apesatlas.iucnapesportal.org/index.php?title=UFA_10-063_ZICGC3&oldid=4632"