Fish farming and food security in Central Cameroon

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Over 5 years of participatory on-farm research, market access, profitability, farming systems productivity and economic sustainability were compared on 100 small-scale farms in Central Cameroon. Integration technology based on the use of agricultural by-products as fishpond inputs was the driver for intensification. Over all farms, fishpond productivity increased from 498 kg to 1609 kg fish/ha […]

High levels of genetic diversity in African poultry

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Threat

Chickens represent an important animal genetic resource for improving farmers’ income in Africa. A comparative analysis of the genetic diversity of 472 village chickens across a subset of African countries (Cameroon, Benin, Ghana, Cote d’Ivoire and Morocco, and characterization along 22 markers revealed high heterozygosity for all local populations (0.51 to 0.67) Human settlements, migrations […]

Planting trees for the sustainable management of marginal lands: the case of eucalyptus in Ethiopia

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In northern Ethiopia, eucalyptus is the most commonly observed tree species in community and household woodlots. In an environment suffering from biomass and water shortages, erosion and land degradation, fast growing and resilient eucalyptus perform better than most indigenous tree species. Smallholders show a clear preference for eucalyptus poles, which are useful for farm implements […]

Functional diversity in Mango Orchards on Reunion

World Region
Threat
Interventions

The knowledge of factors implicated in agroecosystem diversity is necessary to better evaluate their role. The study aims to link within-field plant diversity, cultural practices, and landscape context with terrestrial predatory arthropods in mango orchards on Reunion. Twenty-four plots distributed within the mango production area have been studied. Arthropods were sampled with pitfall traps. The […]

Supporting adaptation by maintaining effective population sizes in agroforestry species

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In smallholder’s farms, evidence has suggested that effective population sizes are lower than they are in natural stands as a result of narrow sampling in seed collection, and ongoing reliance upon the same genetic material for future cultivation, as well as low individual densities, which reduces connectivity and associated pollination and seed dispersal. These effects […]

Germplasm Transfers of Agroforestry Trees for Climate Change Adaptation

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Prosopis africana  is very important for farming and pastoralist communities in the West African Sahel. The species extends from the relatively humid Sudanian and Guinean ecozones in the south to the drier Sahelian ecozone in the north, but it is disappearing in many regions due to overexploitation and the increasingly hotter and drier climate in the region. In the semi-arid West […]

Adapting to climate-driven fishstock fluctuations in African inland fisheries

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The contribution of fish production from inland production has risen from less than 25% in 1951 to 41% in 1994. These fish stocks are climate-driven and cannot be stabilized using conventional fisheries management measures. However, the livelihood strategies of fisherfolk are adapted to seasonal and inter-annual climate-induced fluctuations. State management, which fails to recognize the […]

Agrobiodiversity as a Key Strategy for Increased Resilience and Food Sovereignty in Malawi

World Region

Biodiversity is often considered a ‘keystone characteristic’ of healthy ecosystems, and is increasingly being examined in relation to other ecological processes, such as nutrient cycling and energy use. Biodiversity is also thought to be a form of ‘insurance’ – an important feature of climate change adaptation to minimize the additional risk that an erratic climate […]

Evaluating Social and Ecological Vulnerability of Coral Reef Fisheries to Climate Change

World Region

Kenya is at the frontline of climate change, and experienced unprecendented temperatures leading to widespread coral bleaching in the El-Nino events of 1998.  Furthermore, coastal Kenyans are highly dependent upon marine resources for livelihoods, although marine resources are subjected to a wide range of governance mechanisms ranging from community managed fishery enclosures to large govnernment […]

Overcoming social-ecological traps in coral reef fisheries

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Poverty can create conditions that facilitate the use of destructive gear and make fishers more likely to continue fishing as catch declines. This social poverty trap interacts with key ecological dynamics such as herbivory to reinforce undesirable ecological conditions.  Social-ecological traps can be broken by effective institutions and poverty reduction.