|
Reasons for the increase incidence of Zonocerus variegatus in crop fields in the humid forest zone of Southern Cameroon. |
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| All |
Female |
Male |
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|
|
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| Reasons |
Ydé |
Mbyo |
Ebwa |
Means |
Ydé |
Mbyo |
Ebwa |
Means |
Ydé |
Mbyo |
Ebwa |
Means |
|
|
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| Increased surfaces of herbaceous and C. odorata fallows |
50 |
90 |
80 |
73 |
40 |
80 |
80 |
67 |
60 |
100 |
80 |
80 |
| Deforestation |
60 |
60 |
60 |
60 |
40 |
60 |
60 |
53 |
80 |
60 |
60 |
67 |
| High reproductive rate of Z. variegatus |
20 |
80 |
20 |
40 |
0 |
80 |
0 |
27 |
40 |
80 |
40 |
53 |
| Lack, suppression or reduction of control measures against Z. variegatus |
30 |
20 |
20 |
23 |
20 |
0 |
0 |
7 |
40 |
40 |
40 |
40 |
| Increased food host range of Z. variegatus |
40 |
20 |
10 |
23 |
60 |
20 |
0 |
27 |
20 |
20 |
20 |
20 |
| Absence, suppression or reduction of human consumption of Z. variegatus |
10 |
10 |
10 |
10 |
0 |
0 |
0 |
0 |
20 |
20 |
20 |
20 |
| Wide colonization of the fields by weeds |
10 |
0 |
10 |
7 |
0 |
0 |
0 |
0 |
20 |
0 |
20 |
13 |
| Increase sun shine levels |
10 |
20 |
10 |
13 |
0 |
20 |
20 |
13 |
20 |
20 |
0 |
7 |
| Favorable climatic conditions |
0 |
20 |
30 |
17 |
0 |
20 |
40 |
20 |
0 |
20 |
20 |
13 |
| Change of the crop types |
10 |
0 |
0 |
3 |
20 |
0 |
0 |
7 |
20 |
0 |
0 |
7 |
| Reduction of spaces in sugar cane crop |
10 |
0 |
10 |
7 |
20 |
0 |
0 |
7 |
0 |
0 |
20 |
7 |
| Climatic changes |
20 |
20 |
30 |
23 |
0 |
20 |
20 |
13 |
40 |
20 |
20 |
27 |
| Presence of cassava |
0 |
10 |
0 |
3 |
0 |
0 |
0 |
0 |
0 |
20 |
0 |
7 |
| Possible change of the species of Z. variegatus |
10 |
0 |
0 |
3 |
20 |
0 |
0 |
7 |
0 |
0 |
0 |
0 |
|
The values (% of answer) are averages for 10 groups of farmers (5 male and 5 female groups) interviewed per block. AECD-Blocks = Agro-Ecological, Cultural and Demographic Blocks. Ydé : Yaoundé, Mbyo: Mbalmayo, Ebwa: Ebolowa. | ||||||||||||
Kekeunou et al. Journal of Ethnobiology and Ethnomedicine 2006 2:17 doi:10.1186/1746-4269-2-17 |
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