05.01.2013 Views

Caring for Pollinators - Bundesamt für Naturschutz

Caring for Pollinators - Bundesamt für Naturschutz

Caring for Pollinators - Bundesamt für Naturschutz

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Gikungu, Hagen, Kraemer An overview of pollinator studies in Kenya<br />

the main <strong>for</strong>est. However, he did not find a general pattern in fruit set. The encountered<br />

tendencies were attributed to edge effects and a high diversity of pollinators in the<br />

agroecosystems.<br />

In order to appreciate the role of pollinators in agricultural economics, some studies have<br />

been conducted on selected crops in western Kenya. The net economic benefit gained by<br />

farmers due to bee pollination (on eight different crops) in the Kakamega region was about<br />

40% of their annual market value, amounting in total to 3.19 Million US$.<br />

20<br />

0<br />

Fig. 4: Cumulative number of bee species collected at seven study sites over 24 months, Kakamega<br />

Forest, Kenya<br />

Eastern Kenya:<br />

In the Eastern part of Kenya a few community and individual plants studies including crops<br />

such as water melon (Njoroge 2004, 2006) and Pigeon Pea have been conducted and some<br />

are still ongoing. Because the Eastern province is mostly a dry area, most pollinator<br />

conservation projects have been on apiculture and meliponiculture with the aim of alleviating<br />

poverty and enhancing biodiversity in general. In addition, the traditional knowledge and<br />

diversity of stingless bees have been conducted where a lower diversity of stingless bees<br />

was observed as compared to Western Kenya (Gikungu & Njoroge 2007).<br />

Coastal Areas:<br />

Pollinator studies in coastal areas are still scarce but some work has been published on<br />

studies on bee diversity, <strong>for</strong>aging behaviour (e.g. DIno 2004, Gikungu & Schwarz in press).<br />

Further studies on pollinator diversity and nesting ecology are still ongoing especially in the<br />

59

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!