How indigenous trees in Kiambu are strengthening crop production

Central
By George Njunge | Sep 02, 2024

A columbus monkey enjoys an indigenous tree at the Brackenhurst retreat centre in Kiambu. [Gorge Njung’e, Standard]

Over 120,000 indigenous trees at Brackenhurst retreat centre in Kiambu have been linked to a rise in eco-tourism, crop production and the attraction of rare animals and birds, including pollinators.

 This is according to Tobin Mutiso, a researcher in plant taxonomy at the centre, who added that these trees are part of 1,500 species spread across 48 hectares of land.

 Mutiso said that for 22 years, the centre has been replacing exotic trees with indigenous species which now cover the expansive retreat.

 He added that the extensive indigenous tree cover has led to the arrival of rare animals in the forest, including colobus monkeys and over 200 species of birds whose lifelines depend on indigenous trees.

 “Such animals are rarely found where there are only exotic trees, as most of them find food, better shelter and fruits from indigenous trees,” he explained.

 Mutiso noted that indigenous trees increase biodiversity supporting the growth of microorganisms, insects and plants that rely on other plants for survival.

 “This helps maintain and support life on the planet, which is a delicate balance,” he said.

 “Some butterflies seek nectar from specific plants and some birds pollinate particular species. These swarms of insects have made our forest even more interesting, as modern farming practices have driven away many pollinators,” explained Mutiso.

 Anthony Karani, a researcher and scientist at the institution, said nature is an intricate web of support systems where animals and birds want to perch, nest and reproduce.

 He explained that some animals survive on wild fruits and specific vegetation and indigenous trees are the primary source of these resources.

 Nelly Ndathi, the retreat's general manager, said that the animals and birds that have found a home at the centre also contribute to the plant growth.

 “We have slowly achieved the status of an eco-destination, with people now coming from as far as Germany, the USA, France and other countries to visit Brackenhurst, unwind and breathe fresh, uncontaminated air,” Ndathi said.

 She added that their efforts to conserve nature and plant indigenous trees have earned them accreditation from Botanical Gardens Conservation International (BGCI).

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