Profile cover photo
Profile photo
Vegetationmap4africa
Finding the right tree for the right place
Finding the right tree for the right place
About
Vegetationmap4africa's posts

Post has attachment
Abstract: Rethinking the logic of institutional environments aiming to facilitate agroforestry smallholders in economic development, this paper compares smallholder input supply systems for crop and tree seeds in Sub-Saharan Africa and reflects on two basic challenges: (i) how to develop a large number of relevant tree crops for different agroecologies; (ii) how to reach smallholders in rural areas. Policy options for improving agroforestry input supply systems are discussed, whereby our article concludes with suggestions how sectoral approaches for crop seed systems can be modified to agroforestry seed-seedling systems. Biophysical differences have practical implications for how the logic of the ‘African green revolution’ would be translated into a corresponding revolution for agroforestry.

Post has attachment
A tool to support the selection of tree species and seed sources in Colombia. Developed by the project "Restauración Arbórea del Bosque Seco Tropical en Colombia", led by Bioversity International and in partnership with Ecopetrol, Empresas Públicos de Medellín, Universidad Nacional de Colombia, The Government of Antioquia, Forestpa SAS and the Alexander Von Humboldt Institute.

Post has attachment
The website presents work done for the ' flora of woody plants and vegetation on the Horn of Africa' project, led by Ib Friis. An important aim of the work presented on this website was to test various theories formed during the work with the Atlas of the potential vegetation of Ethiopia, published in 2010, and gather new information to our publications on the trees of the Horn of Africa.

The project has resulted in new insights and information about the vegetation and species in Ethiopia, including the discovery of new woody plant species. This will allow us to further improve our potential natural vegetation map for eastern Africa.

Post has attachment
News and views from Nordic Forest Research SNS, with an item o forest maps on the web.

Post has attachment
On 17 November 2016 Paulo van Breugel has successfully defended his PhD thesis The potential natural vegetation of eastern Africa. Distribution, conservation and future changes. The PhD study built upon, and extended our earlier work on the potential natural vegetation (PNV) map of eastern Africa.

Abstract
Species and ecosystems are increasingly threatened by the human activities, while climate change projections show that eastern Africa may face considerable changes in temperature and rainfall regimes. These changes pose huge challenges for the prioritization and implementation of conservation and sustainable management of the natural environment. There is therefore an urgent need for information that allow us to assess the current status of the region’s natural environment and to predict how this may change under future climates. This thesis aims to improve our knowledge on natural vegetation distribution in eastern African, examine how this may change under future climates, and how this can be used to identify conservation priorities in the region. Chapter 1 presents a brief overview of the concept of the potential natural vegetation (PNV), synthesizes the general findings and discusses future perspectives. Chapter 2 presents a biogeographic study of a hitherto poorly studied vegetation type in Ethiopia which is characterized by many near-endemic or endemic species. Chapter 3 focuses on the distribution of fire and different potential vegetation types in Ethiopia under current climatic conditions and how this is likely to change under different climate change scenarios. Chapter 4 presents an environmental gap analysis to prioritize conservation efforts in eastern Africa, based on an evaluation of the environmental representativeness of protected areas and an assessment of the level of threat to the regions different vegetation types. Chapter 5 present a new approach to quickly map the distribution of species by combining species distributions from the PNV maps with that of habitat distribution models, and use this to project to what extent and where projected climate changes are likely to affect the potential distribution ranges of a range of woody species in eastern Africa. 
Photo

Post has attachment
Good news, Kenya has committed to restore 5.1 million hectares of deforested and degraded lands, following other countries in the region such as Uganda, Ethiopia, Burundi, Rwanda and Malawi.

Post has attachment
Publication
Friis, I., Weber, O., Breugel, P. van, & Sebsebe Demissew. 2016. The endangered Ethiopian endemic Crotalaria trifoliolata (Leguminosae-Papilionoideae) and its little-known habitat. Symbolae botanicae upsalienses 38: 19–39.

Abstract
Crotalaria trifoliolata Baker f. (Leguminosae: Papilionoidaeae) was, for 120 years, only known from an incomplete holotype from an uncertain Ethiopian locality. In 2013 it was rediscovered in the Bale Zone, eastern Ethiopia. Surveys in 2014 and 2015 suggest that the species is restricted to limestone habitats in the Kubayo National Forest, where it forms almost monospecific stands of up to one thousand individuals in glades and at forest margins. Predictive distribution models suggest uncertain suitability of the present habitats under future climatic conditions. Based on this and other potential threats, the species is evaluated as Endangered (EN). Crotalaria tiifoliolata is a bigger shrub than previously thought (up to c. 2 m high, with stems up to c. 3 cm in diam.). Molecular studies confirm that C. trifoliolata is related to the widespread C. saltiana. as predicted from morphological observations. A later name. C. malacothcha Harms, is placed in synonymy of C. trifoliolata. Information from local informants suggests that Walenso, the name of the type locality for both C. trifoliolata and C. malacotricha, is a collective name for mountains within the Kubayo Forest.

Post has attachment

Post has attachment
Floristic inventories and botanical surveys in Kenya have started about one and a half century ago. Surveys often have been ad hoc and there are gaps in our knowledge. The article by Wabuyele et al identifies these gaps, which will be very useful to direct future efforts, but also to interpret currently available information.

Post has attachment
Useful Tree database now available via the Agroforestry Species Switchboard

The RELMA-ICRAF Useful Trees database provides links to species fact sheets obtained from the RELMA-ICRAF series on the useful tree species. In these fact sheets, information is provided on the ecology, uses, propagation, management, local names and botanical names of useful tree and shrub species. Photographs and drawings are included for most of the species.

The species fact sheets are also available via the Agroforestry Species Switchboard (http://www.worldagroforestry.org/products/switchboard/index.php) and the vegetationmap4africa smart phone version.

Photo
Wait while more posts are being loaded