Important bird areas in Kenya /

Bennun, Leon; Njoroge, Peter

doi:10.5962/bhl.title.87589

Cited by 147 publications

(89 citation statements)

References 2 publications

(1 reference statement)

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“…Similar destruction is ongoing in Mkongani North and probably in other parts of the reserve. Urgent action is necessary to reverse this process (see also Bennun and Njoroge, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…The mean annual rainfall is between 600 and 1100 mm, with a gradient from the wetter south and east to the relatively dry north-west. Arabuko-Sokoke contains three very different forest types (Blackett 1994a, Bennun andNjoroge 1999;see Figure 1): (1) mixed forest (70 km 2 ) in the east, on grey sands. This relatively dense, tall and undifferentiated forest includes a diversity of tree species, among them Combretum schumannii, Drypetes reticulata, Afzelia quanzensis, Dialium orientale, Hymenaea verrucosa and Manilkara sansibarensis; (2) Brachystegia woodland (77 km 2 ) on white soil.…”

Section: Arabuko-sokoke Forestmentioning

confidence: 99%

“…These are Sokoke Scops Owl Otus ireneae, Sokoke Pipit Anthus sokokensis, Spotted Ground Thrush Zoothera guttata, Amani Sunbird Anthreptes palidigaster and Clarke's Weaver Ploceus golandi (Collar et al 1994, Bennun andNjoroge 1999). The owl and the weaver are each known from only one other site.…”

Section: Arabuko-sokoke Forestmentioning

confidence: 99%

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Distribution, habitat selection and behaviour of the East Coast Akalat Sheppardia gunningi sokokensis in Kenya and Tanzania

Nemeth¹,

Bennun²

2000

Bird Conservation International

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SummaryThis study investigated the distribution and habitat selection of the globally threatened East Coast Akalat Sheppardia gunningi sokokensis in Arabuko-Sokoke Forest, the Shimba Hills (both Kenya) and the lowland East Usambara Mountains (Tanzania). The species is more abundant than originally thought. In Arabuko-Sokoke Forest, akalats occur in two of the main vegetation types, and an estimated 7,500-9,000 territories represent one of the largest populations of this species in the world. Akalats occurred at similar densities to those in Arabuko-Sokoke (c. 0.5 pairs/ha) in parts of Shimba Hills and East Usambaras, but were more patchily distributed. This akalat prefers areas where the undergrowth is partially open with large amounts of dead wood. It forages on or near the ground. In Arabuko-Sokoke Forest, areas where akalats were present had a higher abundance of ground-dwelling arthropods than areas where they were not. The akalat inhabits both primary forest and regenerated areas that have been selectively logged probably more than 20 years ago. Despite its relatively high densities where it occurs, this species (like other threatened birds in the East African coastal forests) is very patchily distributed and dependent on a habitat that is now highly fragmented and under considerable human pressure. The conservation situation in Arabuko-Sokoke gives cause for concern, and the destructive effects of a large elephant population threaten the forests of the Shimba Hills. The conservation status of the lowland Usambara Mountains is probably better and more stable.

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“…Similar destruction is ongoing in Mkongani North and probably in other parts of the reserve. Urgent action is necessary to reverse this process (see also Bennun and Njoroge, 1999).…”

Section: Discussionmentioning

confidence: 99%

Section: Arabuko-sokoke Forestmentioning

confidence: 99%

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Distribution, habitat selection and behaviour of the East Coast Akalat Sheppardia gunningi sokokensis in Kenya and Tanzania

Nemeth¹,

Bennun²

2000

Bird Conservation International

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“…Average annual rainfall ranges from 500 mm to 1500 mm and average temperatures vary from 12°C to 27°C. The region has two internationally recognized Important Bird Areas, one of which, Aberdares Mountains, is adjacent to the study area (Bennun and Njoroge 1999).…”

Section: Study Systemmentioning

confidence: 99%

Quantifying pest control services by birds and ants in Kenyan coffee farms

Milligan

Johnson

Garfinkel

et al. 2016

Biological Conservation

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QUANTIFYING PEST CONTROL SERVICES BY BIRDS AND ANTS IN KENYAN COFFEE FARMS Megan MilliganEcosystem services, such as pest control and pollination, are critical benefits of biodiversity necessary for agricultural production. Predators, including insectivorous birds and ants, can provide important biological controls in agroecosystems, boosting crop yield and helping to offset the need for expensive inputs such as pesticides. With agricultural demand projected to increase in the future, two broad management strategies, termed land sparing and land sharing, have been proposed to conserve biodiversity while still meeting increased agricultural demand. Understanding the related impacts of habitat and landscape characteristics on the delivery of ecosystem services can better inform managers seeking to promote these benefits of biodiversity. In order to better understand these relationships, I conducted a sentinel pest experiment to investigate predation levels in response to a novel pest on coffee farms in central Kenya. The frequency of predation decreased significantly with increasing distance from adjacent forest fragments and was correlated with bird species richness. Predation was also significantly higher on shade compared to sun coffee farms. The mechanism through which the bird and ant communities are effecting pest removal is less clear, but encouraging particular preferential predators could positively influence pest control. In conclusion, a land sharing approach, via both the integration of shade trees and the conservation of small ii forest fragments within a farm, can support increased levels of pest control services provided by both birds and ants in Kenyan coffee farms.iii ACKNOWLEDGEMENTS

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“…The forest is Kenya’s only true tropical rainforest (BirdLife International, 2004) and constitutes one of Kenya’s 61 Important Bird Areas (IBAs) due to many endemic birds species found in it (BirdLife International, 2004). Apart from birds, it also has remarkable biodiversity richness, hosting several species of mammals, reptiles, amphibians, invertebrates and plants 8, 9 . It is currently under increasing threat of loss to agriculture and settlement by the increasing local human population.…”

Section: Methodsmentioning

confidence: 99%

Local indigenous knowledge about medicinal plants in and around Kakamega forest in western Kenya

Otieno

Analo²

2012

F1000Res

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Kakamega forest is Kenya’s only rainforest and is distinguishably rich in biodiversity but threatened by agricultural encroachment and other forms of human activity. It is also one of Kenya’s Important Bird Areas and a significant source of natural products to neighboring rural communities, such as medicinal plants, food, wood and other fibers. By using structured questionnaires for direct interviews, local indigenous knowledge was tapped through involvement of a focal group of elderly key informants in three blocks of the forest. Forty key species of medicinal plants used by local people were identified and recorded. Fifty-five percent of these were shrubs, thirty-two percent trees, seven-and-a-half percent lower plants such as herbs or forbs while five percent were climbers. About seventy percent of the medicinal plants occurred inside the forest itself and thirty percent around the edge and the immediate surroundings outside the forest. Thirty-eight (95%) of the plants were indigenous to Kenya and two (5%) exotic. Such extensive indigenous knowledge of the medicinal uses of the plants, including their distribution trends in the forest, may be tapped for decision support in rural health service planning, policy formulation for conserving the forest, tracking and mitigation of climate change impacts.

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Important bird areas in Kenya /

Cited by 147 publications

References 2 publications

Distribution, habitat selection and behaviour of the East Coast Akalat Sheppardia gunningi sokokensis in Kenya and Tanzania

Distribution, habitat selection and behaviour of the East Coast Akalat Sheppardia gunningi sokokensis in Kenya and Tanzania

Quantifying pest control services by birds and ants in Kenyan coffee farms

Local indigenous knowledge about medicinal plants in and around Kakamega forest in western Kenya

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