A new population of de Brazza's monkey in Kenya

Muriuki, J.; Tsingalia, Mugatsia

doi:10.1017/s0030605300033883

Cited by 12 publications

(6 citation statements)

References 4 publications

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“…The climatic conditions observed in this study (Figures 5 & 6) were consistent with reports by Muriuki and Tsingalia (1990) and Kokwaro (1988). As Poikilothermie organisms, the life cycle, activity, distribution and abundance of Lepidoptera are influenced by temperature (Hill et al 1999).…”

Section: Discussionsupporting

confidence: 92%

Use of Sleeve Nets to Improve Survival of the Boisduval Silkworm,Anaphe panda, in the Kakamega Forest of Western Kenya

Mbahin

Raina

Kioko

et al. 2010

Journal of Insect Science

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Prospects for development of a wild silk industry in Africa would be improved if silkworm survival during mass production could be improved. A study on the survival of the Boisduval silkworm, Anaphe panda (Boisduval) (Lepidoptera: Thaumetopoeidae) was conducted with and without protection by net sleeves in two different forest habitats (natural and modified) in the Kakamega forest of western Kenya. Overall, cohort survival was significantly higher (P < 0.001) in the natural than in the modified forest, but larval survival was improved over three-fold by protection with net sleeves in both habitat types. In the modified forest, only 16.8% of unprotected larvae survived to the pupal stage and formed cocoons, whereas 62.3% survived in the same environment when they were protected with net sleeves. In the natural forest, 20.4% of unprotected larvae survived, whereas 67.7% survived in net sleeves. There was also a significant effect of season; cohorts of larvae that eclosed in the wet season had significantly lower survival than those eclosing in the dry season (P = 0.02). Sources of mortality appeared to be natural enemies (parasites, predators and diseases) and climatic factors.

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Section: Discussionsupporting

confidence: 92%

Use of Sleeve Nets to Improve Survival of the Boisduval Silkworm,Anaphe panda, in the Kakamega Forest of Western Kenya

Mbahin

Raina

Kioko

et al. 2010

Journal of Insect Science

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“…The climatic conditions observed in this study (Figures 5(a) and 5(b)) were consistent with reports by Muriuki and Tsingalia [18] and Kokwaro [19]. As poikilothermic organisms, the life cycle, activity, distribution, and abundance of Lepidoptera are influenced by temperature [20].…”

Section: Discussionsupporting

confidence: 90%

Biology of the Wild SilkmothAnaphe panda(Boisduval) in the Kakamega Forest of Western Kenya

Mbahin

Raina

Kioko

et al. 2012

International Journal of Forestry Research

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A study on the life cycle of the silkmoth Anaphe panda (Boisduval) was conducted in two different habitats of the Kakamega Forest in western Kenya: Ikuywa, an indigenous forest, and Isecheno, a mixed indigenous forest. Eggs were laid in clusters, and the incubation period ranged from 40 to 45 days. Larvae fed on Bridelia micrantha (Hochst) and passed through seven instars. The developmental period took between 83 to 86 days in the dry season and 112 to118 days in the rainy season. The pupal period ranged between 158 and 178 days in the rainy season and, on the other hand, between 107 and 138 days in the dry season. But the later caught up in development with those that formed earlier. Moths emerged from mid-October until mid-May. Longevity of adult Anaphe panda moths took between 4 and 6 days, but generally females seemed to live longer than males. The moth also seems to have higher lifespan in the indigenous forest compared to the mixed indigenous forest.

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“…2). Kisere Nature Reserve is of particurlar conservation significance because it has been relatively undisturbed in the past and still harbours species-rich forest communities that include the rare DeBrazza monkeys (Cercopithecus neglectus) (Muriuki and Tsingalia 1990;Chism and Cords 1997). Although managed by KWS, it appears to have experienced increasing disturbance levels in the last few years (N. Saijita and C. Analo, personal communication).…”

Section: Management Recommendations For Kakamega Forestmentioning

confidence: 99%

“…Annual rainfall in Kakamega Forest is approximately 2007 mm (as averaged from FD records at Isecheno Forest Station from 1982 to 2001) and highly seasonal with a rainy season from April to November and a short dry season from December to March. The average monthly maximum temperature ranges from 18 to 29°C while the average monthly minimum ranges from 4 to 21°C (Muriuki and Tsingalia 1990).…”

Section: Study Sitementioning

confidence: 99%

Assessment of Threat Status and Management Effectiveness in Kakamega Forest, Kenya

2006

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To counteract an increasing biodiversity decline, parks and protected areas have been established worldwide. However, many parks lack adequate management to address environmental degradation. To improve management strategies simple tools are needed for an assessment of human impact and management effectiveness of protected areas. This study quantifies the current threats in the heavily fragmented and degraded tropical rainforest of Kakamega, western Kenya. We recorded seven disturbance parameters at 22 sites in differently managed and protected areas of Kakamega Forest. Our data indicate a high level of human impact throughout the forest with illegal logging being most widespread. Furthermore, logging levels appear to reflect management history and effectiveness. From 1933 to 1986, Kakamega Forest was under management by the Forest Department and the number of trees logged more than 20 years ago was equally high at all sites. Since 1986, management of Kakamega Forest has been under two different organizations, i.e. Forest Department and Kenya Wildlife Service. The number of trees logged illegally in the last 20 years was significantly lower at sites managed by the Kenya Wildlife Service. Finally, logging was lower within highly protected National and Nature Reserves as compared to high logging within the less protected Forest Reserves. Reflecting management effectiveness as well as protection status in Kakamega Forest, logging might therefore provide a valuable quantitative indicator for human disturbance and thus an important tool for conservation managers. Logging might be a valuable indicator for other protected areas, too, however, other human impact such as e.g. hunting might also prove to be a potential indicator.

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A new population of de Brazza's monkey in Kenya

Cited by 12 publications

References 4 publications

Use of Sleeve Nets to Improve Survival of the Boisduval Silkworm,Anaphe panda, in the Kakamega Forest of Western Kenya

Use of Sleeve Nets to Improve Survival of the Boisduval Silkworm,Anaphe panda, in the Kakamega Forest of Western Kenya

Biology of the Wild SilkmothAnaphe panda(Boisduval) in the Kakamega Forest of Western Kenya

Assessment of Threat Status and Management Effectiveness in Kakamega Forest, Kenya

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