This document summarizes a study comparing hunting practices of Pygmy communities and non-Pygmy villages in the Congo Basin forests. The study found that:
1) Pygmy communities hunted a smaller variety of species that were on average smaller in size compared to what non-Pygmies hunted.
2) Harvest and extraction rates calculated as the number of animals or kilograms killed per person or hunter were higher for non-Pygmy villages compared to Pygmy settlements.
3) Estimated extraction rates per square kilometer of territory were also higher for non-Pygmies at 226 animals/km2 versus 29 animals/km2 for Pygmies.
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Space for Hunting: Understanding Indigenous and other Hunters’ Impacts in the Congo Basin Forests
1. Space for Hunting
Understanding Indigenous and other Hunters’ Impacts
in the Congo Basin Forests
John E. Fa, Jesus Olivero, Andrew Noss, Hirokazu Yasuoka, Michael Riddell,
Jerome Lewis, Serge Bahuchet, Miguel Angel Farfán, Jesus Duarte, Romain
Duda, Sandrine Gallois, Guiseppe Carpanetto, Shiho Hattori, and Robert
Nasi
2. • Pygmy communities identify themselves as ‘forest peoples’ due to the
fundamental importance of the forest to their culture, livelihood and
history.
• Each is a distinct people, such as the Twa, Aka, Baka and Mbuti living in
countries across central Africa, including the Central African Republic (CAR),
the Democratic Republic of Congo (DRC), Rwanda, Uganda and Cameroon.
• Different groups have different languages and hunting traditions.
• Although each community faces different threats and challenges, racism,
logging and conservation are major problems for many, all contributing to
serious health problems and violent abuse.
6. Attribute Pygmies Non-Pygmies
Settlement size
(inhabitants)
91.9 ± 24.3
range = 8–690
n = 33
882.4 ± 311.0
range = 35 – 6594
n = 22
Total length of studies
(days)
66.2 ± 13.7
range = 3-368
279.6 ± 54.4
range = 7-1020
Sale of hunted game (%)
34.8 ± 6.4%
range = 0 – 90%
n = 26
65.4 ± 19.8%, range =
11 – 95.3%
n = 24
Total: 34 Pygmy camps and other settlements; 26 non-Pygmy villages
Study Sites
7. 0.0
5.0
10.0
15.0
20.0
25.0
30.0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
PercentofSpecies
Log Prey Body Mass (g)
Non-Pygmies
Pygmies
Size Distribution of Vertebrate Kills
Pygmies = 71 spp. 17.02 ± 14.83 kg; Non-Pygmies = 122 spp. 8.53 ± 2.40 kg
8. Pygmy hunters killed a total of 77 species of reptiles, birds and mammals; 62 mammals (74.2%), 8 birds
and 7 reptiles. Non-Pygmy hunters took more species; 97 in total, of which 71 were mammals, 17 birds,
8 reptiles and 1 amphibians.
Differences in Animal Groups Hunted
Pygmies Non-Pygmies
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
A)
Amphibians Birds Ungulates
Carnivores Hyrax Pangolins
Primates Elephant Rodents
Aardvark Repiltes
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
B)
10. Differences in Hunted Animal Groups by
Pygmies
Low (0.15)
Medium (0.69)
High (0.17)
Low (0.29)
Medium (0.58)
High (0.13)
Non-Pygmies
11. Harvest rates
HR = no. of animals killed/ no. of potential consumers x duration
Extraction rates
ER = no. of animals killed/ no. of hunters consumers x duration
Harvest and extraction rates
12. Pygmies
HR
20.4 ± 23.2 ind. P-1 Yr-1
376.3 ± 515.1 kg P-1 Yr-1
ER
87.9 ± 109.9 ind. H-1 Yr-1
1646.6 ± 2095.7 kg H-1 Yr-1
Non-Pygmies
HR
39.5 ± 66.9 ind. P-1 Yr-1
307.0 ± 450.6 kg P-1 Yr-1
ER
162.0 ± 123.6 ind. H-1 Yr-1
1283.9 ± 1004.2 kg H-1 Yr-1
Differences in Harvest and Extraction Rates
H = Hunter
P = Person
13. 0.00 5.00 10.00 15.00 20.00 25.00
Philantomba mon cola
Cephalophus dorsalis
Atherurus africanus
Cephalophus callipygus
Cercopithecus nic tans
Cricetomys emini
Phataginus tricuspis
Hymoshcus aqua cus
Kinixys erosa
Cercocebus agilis
Cephalophus ogilbyi
Potamochoerus porcus
Cephalophus nigrifrons
A lax paludinosus
Gene a servalina
Cephalophus silvicultor
Gorilla gorilla
Gu era edouardi
Pan troglodytes
Felis aurata
Extrac on (ind./km2/year)
a) Non-Pygmies
0.00 5.00 10.00 15.00 20.00 25.00
Cephalophus callipygus
Philantomba mon cola
Cephalophus dorsalis
Atherurus africanus
Potamochoerus porcus
Cephalophus silvicultor
Cricetomys emini
Cephalophus ogilbyi
Felis aurata
Cercocebus agilis
Hymoshcus aqua cus
Cephalophus nigrifrons
Kinixys erosa
A lax paludinosus
Gorilla gorilla
Gu era edouardi
Gene a servalina
Pan troglodytes
Cercopithecus nic tans
Phataginus tricuspis
Extrac on (ind./km2/year)
b) Pygmies
Extraction Rates by Species
Pygmies
Non-Pygmies
Pygmy hunters killed a total of 77 species of reptiles, birds and mammals; 62 mammals (74.2%), 8 birds and 7 reptiles. Non-Pygmy hunters took more species; 97 in total, of which 71 were mammals, 17 birds, 8 reptiles and 1 amphibians.
low (0 - 0.25), medium (0.25 -0.50) and high fecundity (>0.50) classes.
Population density, calculated utilizing the LandScan™ 2008 High Resolution (1 km2) Global Population Data Set (copyrighted by UT-Battelle, LLC, operator of Oak Ridge National Laboratory); and (2) urban areas, taken from MODIS 500-m Map of Global Urban Extent (produced using data circa 2001-2002, see Schneider et al., 2009, 2010).
We calculated the Pygmy potential population size (PPS) for every grid cell of the study area (0.1° × 0.1°), according to favorability values in Olivero et al. (2016). From this, the Pygmy population density was computed using the following equation taking territoriality into account: Population density = (PPS × GCS/ASA)/GCS = PPS/ASA, where GCS is the size of a grid cell, and ASA is the average territory size estimated for Pygmies (i.e. 1,079 km2, see Olivero et al. 2016).