A5045500415- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Avian ecology and behavior
- African Botany and Ecology Studies
- Conservation, Biodiversity, and Resource Management
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Plant and animal studies
- Rangeland Management and Livestock Ecology
- Genetic diversity and population structure
- Aquatic Ecosystems and Biodiversity
- Wildlife-Road Interactions and Conservation
- Lepidoptera: Biology and Taxonomy
- Invertebrate Taxonomy and Ecology
- Land Use and Ecosystem Services
- Wildlife Conservation and Criminology Analyses
- Plant Parasitism and Resistance
- Nanofabrication and Lithography Techniques
- Environmental DNA in Biodiversity Studies
- Amphibian and Reptile Biology
- Global Maritime and Colonial Histories
- Marine and fisheries research
- Forest ecology and management
- Mollusks and Parasites Studies
BirdLife International
2014-2025
Jomo Kenyatta University of Agriculture and Technology
2013-2019
National Museums of Kenya
2002-2016
Missouri Botanical Garden
2014
University of Cape Town
2002-2003
Summary Illegal killing/taking of birds is a growing concern across the Mediterranean. However, there are few quantitative data on species and countries involved. We assessed numbers individual each killed/taken illegally in Mediterranean country per year, using diverse range sources incorporating expert knowledge. estimated that 11–36 million individuals year may be region, many them migration. In Cyprus, Egypt, Italy, Lebanon Syria, more than two average year. For such as Blackcap Sylvia...
Africa boasts high biodiversity while also being home to some of the largest and fastest-growing human populations. Although current environmental footprint is low compared other continents, population estimated at around 1.5 billion inhabitants, representing nearly 18% world’s total population. Consequently, Africa’s rich under threat, yet only 19% landscape 17% seascape are any form protection. To effectively address this issue align with Convention on Biological Diversity’s ambitious ‘30...
We present an account of the 909 globally threatened taxa (793 species, 74 subspecies, 42 varieties) animals and plants in Eastern Arc Mountains Coastal Forests Kenya Tanzania sites which they occur based upon a review 2015 IUCN Red List Threatened Species. Results for are summarised by Class (Amphibia, Aves, Gastropoda, Insecta, Malacostraca, Mammalia, Reptilia) presented as whole (Classes Bryopsida, Cycadopsida, Jungermanniopsida, Liliopsida, Lycopodiopsida, Magnoliopsida, Pinopsida,...
Abstract Biodiversity indicators are essential for monitoring the impacts of pressures on state nature, determining effectiveness policy responses, and tracking progress towards biodiversity targets sustainable development goals. Indicators based trends in abundance birds widely used these purposes Europe have been identified as priorities elsewhere. To facilitate this we established bird population schemes three African countries, citizen science approaches Europe, aiming to monitor common...
Summary The Critically Endangered Liben Lark (formerly Sidamo Lark) is known only from the Plain of southern Ethiopia, where rapid grassland deterioration driving species towards extinction. Fieldwork on in May 2009 to assess changes habitat and population since June 2007 recorded a significant decline numbers. In both 2009, birds were associated with areas greater than average grass cover, higher grass. However, between there was cover height, 40% number along repeated transects,...
Bird exclusion experiments on kale (Brassica sp.) plants were undertaken to quantify the extent which foraging birds contributed reducing densities and impact of invertebrate pests. During dry season, significantly higher leaf-area loss, aphid thrips abundance recorded in bird-excluded compared with control plants, suggesting that could make an important contribution pest control. On average, per week, during from led both a marked increase (130%) number leaves infested aphids leaf damage by...
Few studies have explored how human land uses influence and support persistence of forest biodiversity in central Kenya. In the case Mount Kenya ecosystem, farmlands plantation forests are significant land-use types. Using point counts, we assessed bird communities natural forests, Nanyuki Forest Block, Western Bird counts were undertaken during two sampling periods (wet dry season). Compared to forest, had highest overall avian species richness relative all except one forest-dependent...
We examined the effects of vegetation composition and structure on bird species diversity richness foraging guilds in highland agricultural landscape Nyandarua, Kenya. Bird point counts surveys were undertaken during four sampling periods. Linear mixed models used to examine variables respective guilds, logistic generalised linear presence/absence 17 most common species. increased with increasing density woody plant structural heterogeneity. Two gradients heterogeneity important influencing...
Abstract Field survey data and Landsat satellite imagery were used to evaluate the conservation status of two Juniperus forests (Mankubsa Arero) in south Ethiopian Endemic Bird Area. Forest cover dense woodland decreased both areas between 1986 2002, but rates habitat change human impact greater at Mankubsa than Arero. We suggest that increased grazing pressure, agricultural expansion, commercial fuelwood timber exploitation are threatening forest persistence, while most degradation Arero is...
Capsule Most birds in a Kenyan highland agroecosystem foraged from the ground, potentially contributing to weed regulation, and invertebrate intake rates by aerial foraging insectivores were high, indicating that could contribute pest regulation. Aims Bird behaviour its implications for provision of ecosystem services crop damage was investigated. Methods Detailed observations relation substrates used food items consumed undertaken within cultivated areas during dry wet seasons. Results...
The global Blue Swallow Hirundo atrocaerulea was classified as Vulnerable in 2010 on account of its small and rapidly declining population estimated at less than 1 500 pairs. We undertook this study to gain a better understanding the current status threats facing migratory species. Three previously unknown areas that might be part species' non-breeding range were identified Kenya northern Tanzania. Within breeding we three potentially suitable habitat, one Tanzania two Malawi, which require...
Abstract The coastal forests of Kenya are conservation priorities hosting high levels biodiversity. Monitoring biodiversity in these is therefore necessary to understand and reverse negative trends good time. Using the Important Bird Area ( IBA ) monitoring framework, a participatory approach, state (habitat condition), pressure (threats) response (conservation action) indicators twelve forest s were assessed from 2004 2011. Trends for at six sites which sufficient data existed:...
We report the results of a survey Fischer's turaco Tauraco fischeri in Unguja (otherwise known as Zanzibar). estimated species' range, population size and habitat selection using unlimited distance point counts. The main are: 1) is more widely distributed coral rag zone than previously thought, with an area occupancy at 56 km2, 2) species does not occur agricultural habitats tree plantations, 3) within natural it selects places denser cover, 4) food availability differ between occupied...
Thus far, no expedition has comprehensively surveyed the composition of bird species in dilapidated habitats Nyando sugar belt, Western Kenya. This made it difficult unearthing equilibrium between agricultural growth and conservation. In response, we conducted assessment by stratifying area into farmlands shrub-land. We then sampled birds standard point count method opportunistic counts within a 30 m radius parcel land. exhaustively observed 1450 122 species. The farmland recorded density...
We examined the effects of crop diversity on avian species richness and abundance in highland farmlands Nyandarua, Kenya. surveyed birds using point counts recorded habitat data at same locations estimating cover growth stage all types, whether they were grown as intercrops or monocrops, dominant surrounding vegetation type. An index was calculated from percentage different types. The these variables bird richness, foraging guilds each 12 most common linear mixed models. Crop had significant...
Abstract Abandoned post‐quarry sites have potentiality to be remodeled into natural‐wilderness areas, a desire especially in rapidly urbanizing and transforming landscapes. However, paucity of ecological information on limits nature‐based restoration, the sub‐Saharan tropical landscape. This study investigated avifauna composition Ndarugu, Kenya, relative non‐quarried for conservation role prioritization. Birds were censused 166 point count stations using fixed‐radius distance method. Land...
ABSTRACT Aim Historical bird atlases provide comprehensive datasets for investigating long‐term changes in species' distribution. In the context of accelerating biodiversity loss, these can lend critical insights into state distributions across broad spatio‐temporal scales and much‐needed information impactful conservation. Africa, potential atlas data to understand avian populations remains largely untapped. Location This study mapped national distribution patterns 1088 species found Kenya....