Debissa Lemessa

Debissa Lemessa
Addis Ababa University | AAU · Department of Biology

PhD
Teaching and Research

About

68
Publications
24,289
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
576
Citations
Introduction
Debissa Lemessa currently works at Department of Plant biology and biodiversity management, Addis Ababa University, Addis Ababa, Ethiopia. Debissa does teach and research on functional biodiversity, Ecosystem services and disservices . Their current project is 'Holistic ecological analyses on the impact of Eucalyptus on Biodiversity in Drey evegreen vegetation and grassland complex ecossytem of Ethiopia".
Additional affiliations
November 2015 - December 2015
Ethiopian Biodiversity Institute, Addis Ababa, Ethiopia
Position
  • Ecologist , Researcher
February 2015 - June 2018
Stockholm University
Position
  • PostDoc Position
February 2015 - June 2018
Leuphana University Lüneburg
Position
  • PostDoc Position

Publications

Publications (68)
Article
Full-text available
Dry Afromontane forests in Ethiopia are vital for the conservation of plant diversity and climate change mitigation. However, these forest resources are rapidly degrading and shrinking, necessitating empirical scientific investigations to ensure their successful conservation and long-term management. As a result, this study was conducted to evaluat...
Article
Full-text available
Continuing climate change may cause shifts in the adaptive ranges of plant species. But this impact is less understood for many species in the tropics. Here, we examined the distribution of the current and future potential suitable habitats of two native forest spices Piper capense and Aframomum corrorima . We have used MaxEnt software to predict t...
Article
Full-text available
The spatial variations in woody species composition and recruitment structures are less explored in arid and semi-arid ecosystems. We aimed to fill this gap by undertaking the study on three sites which were purposively selected from Awash River Basin based on their area extent and altitudinal gradients. In each vegetation site, we laid out one tra...
Article
Full-text available
Human beings largely depend on ecosystem services obtained from nature. Here, we examined the local communities' willingness to pay for improving forest conservation and the determinants in southwest Ethiopia. For this, firstly, the peasant associations were randomly sampled; one from the edge of the forests and three others each at 5km differences...
Article
The spatial variations in woody species composition and recruitment structures are less explored in arid and semi-arid ecosystems. We aimed to fill this gap by undertaking the study on three sites which were purposively selected from Awash River Basin based on their area extent and altitudinal gradients. In each vegetation site, we laid out one tra...
Article
Full-text available
Context Human disturbances can have large impacts on forest structure and biodiversity, and thereby result in forest degradation, a property difficult to detect by remote sensing. Objectives To investigate spatial variation in anthropogenic disturbances and their effects on forest structure and biodiversity. Methods In 144 plots of 20 × 20 m dist...
Article
Full-text available
Context Human disturbances can have large impacts on forest structure and biodiversity, and thereby result in forest degradation, a property difficult to detect by remote sensing. Objectives To investigate spatial variation in anthro-pogenic disturbances and their effects on forest structure and biodiversity. Methods In 144 plots of 20 9 20 m distr...
Article
Full-text available
We explored the socio-ecological factors mediating the composition of crop species composition in homegardens of southwest Ethiopia. For this, eleven kebeles were purposively selected based on the altitudinal variations that range between 1980 and 3271 ma.s.l. From each kebele 11 households were randomly selected and in total 121 households were us...
Article
Full-text available
The study aimed to examine the effects of PGPR and chemical fertilizer inoculation on the growth, yield, and grain nutrient uptake of teff varieties. Field experiments were carried out in a Randomized Complete Block Design (RCBD)consisting of six treatments. For this, two varieties were sown in plots (size: 22m each) arranged with (42) factorial....
Article
Full-text available
We explored the socio-ecological factors mediating the composition of crop species composition in homegardens of southwest Ethiopia. For this, eleven kebeles were purposively selected based on the altitudinal variations that range between 1980 and 3271 ma.s.l. From each kebele 11 households were randomly selected and in total 121 households were us...
Preprint
Full-text available
The distributions of the potential adaptive ranges of iconic plant species are not yet fully known especially in regions such as Ethiopia where high climatic variability and vegetation types are found. This study was undertaken to predict the distributions of the potential suitable habitats of Pouteria adolfi-friederici and Prunus africana tree spe...
Article
Application of native PGPB as bio inoculant is an alternative sustainable agricultural practice to enhance crop productivity, grain quality, and soil fertility also as conserve biodiversity. In this view, a study was to evaluate the effect of PGPB and chemical fertilizer co-inoculation on growth, yield, and grain nutrient uptake of teff varieties....
Article
Full-text available
Background: The rapid expansion of Helichrysum splendidum shrub into Menz-Guassa community conservation area has resulted in the scarcity of Guassa grasses and this has threatened the livelihoods of the local community. Objective: A field survey was undertaken to examine the effect of human disturbance and soil burrows on the expansion of H. splend...
Article
Full-text available
A substantial tree planting from exotic tree species has been practiced in Ethiopia during the last ten decades. Yet, the efforts made to restore degraded areas using exotic tree species but with less emphasis given to the indigenous tree species for enhancing biodiversity conservation and ecosystem services could not bring the desired results. The...
Article
Full-text available
Crop raiding is a major form of human-wildlife interaction mainly in the ecotone areas of human-modified natural landscapes. The aim of this study was to examine the spatial pattern of crop raiding and the resultant impacts on how farmers perceive forests at different distances from Yayu Coffee Forest Biosphere Reserve which is located in southwest...
Article
Full-text available
Eriosema cordifolium (Hochst. ex A. Rich.) is a wild edible plant that belongs to the Fabaceae family. Its tuber is harvested from the wild for local use as food and consumed raw as a snack especially by children. However, no study was yet undertaken on its seed germination and nutritive values which are among the requirements useful for its conser...
Article
Full-text available
Background: The rapid expansion of Helichrysum splendidum shrub into Menz-Guassa community conservation area has resulted in the scarcity of Guassa grasses and this has threatened the livelihoods of the local community. Objective: A field survey was undertaken to examine the effect of human disturbance and soil burrows on the expansion of H. splend...
Article
Full-text available
Factors driving the expansion of Helichrysum splendidum in Menz-Guassa community conservation area of the Afroalpine ecosystem of Ethiopia Sisay Wube 1,2*, Debissa Lemessa 1, and Bikila Warkineh Dullo 2 1Ethiopian Biodiversity Institute, Addis Ababa, Ethiopia 2Department of Plant Biology and Biodiversity Management, Addis Ababa University, Ethiopia...
Article
Full-text available
Among the many other factors that would be taken as one of the most important options for climate change mitigation is forest wood carbon stock. Hence, the aim of this study was to examine the carbon stock potential of woody species and how it varies by community types and topographic aspects, along altitudinal and slope gradients in Sirso moist ev...
Article
Full-text available
The rapidly changing landuse/landcover at various scales mainly during the past recent decades have caused the degradation of biodiversity and this in turn has affected the human wellbeing in Ethiopia. However, adequate study is lacking particularly in Walmara district where intensive cereal based faming system is exerted by the rapidly increasing...
Article
Full-text available
Background: Several earlier studies have used different formulae to compute the annual rates of land use/land covers changes in landscapes. Moreover, the magnitudes of the land use changes from two time points (i.e., initial and recent) only have been used to compute the annual rates. However, the use of different formula by itself is confusing and...
Article
Full-text available
The major livestock feed next to natural pasture in central highlands of Ethiopia is cereal crop residue; however, supplementation with additional nutritional entities is most often recommended. The present study aims to examine the nutritive value of lentil haulm and how this value varies among the varieties and locations. For this, 80gms of haulm...
Article
Full-text available
Homegarden is one of the potential landuse practices in an agricultural landscape where trees and shrubs are deliberately grown in association with crop production and animal husbandry. The general plant diversity and species composition have been well studied in tropical homegardens. However, the explicit study of plant diversity in terms of diffe...
Article
Full-text available
The idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on p...
Article
Full-text available
The idea that noncrop habitat enhances pest control and represents a win-win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on p...
Article
Full-text available
Experiment on tree seed germination
Article
Full-text available
Terminalia laxiflora Engl. & Diels. is an important indigenous and multi-purpose species in Ethiopia. However threatened due to low germination and its storage behavior is unknown. In this study, we aimed to (1) test pretreatments for breaking the dormancy of T. laxiflora seed and (2) determine its storage behavior. Seeds were subjected to four pre...
Article
Full-text available
Although homegardens are most often suggested as the refuges for biodiversity in human-dominated landscapes, how the surrounding landscape and socioeconomic characteristics affect this diversity in the tropics has received little research attention. Hence, this study has examined how these factors affect woody species diversity in homegardens of no...
Article
Full-text available
p>Enhancing seed germination is a fundamental step for conservation of plant genetic resources but less is understood specifically for endangered native and endemic tree species in the tropics. We examined how cold stratification and application of different treatments impact the germination of Juniperus procera seeds. We collected seeds from nine...
Article
Full-text available
Woody species composition at local scale has been studied well in the tropics. However, how the species composition is related to the spatial and environmental gradients was poorly studied. Here, we examined the effects of the topographic aspects and altitude gradient on the species composition across four sites of Acacia-Commiphora woodland and bu...
Article
Full-text available
The expansion of pollinator-dependent crops, especially in the developing world, together with reports of worldwide pollinator declines, raises concern of possible yield gaps. Farmers directly reliant on pollination services for food supply often live in regions where our knowledge of pollination services is poor. In a manipulative experiment repli...
Article
Summary Human modified landscapes make up a growing proportion of the tropics, but are relatively little studied. The spatial distribution of remnant vegetation can structure and shape local biodiversity, affecting the provisioning of ecosystem services and regulation of pest problems. We compared species composition, abundance and functional diver...
Article
The expansion of pollinator-dependent crops, especially in the developing world, together with reports of worldwide pollinator declines, raises concern of possible yield gaps. Farmers directly reliant on pollination services for food supply often live in regions where our knowledge of pollination services is poor. In a manipulative experiment repli...
Article
The expansion of pollinator-dependent crops, especially in the developing world, together with reports of worldwide pollinator declines, raises concern of possible yield gaps. Farmers directly reliant on pollination services for food supply often live in regions where our knowledge of pollination services is poor. In a manipulative experiment repli...
Article
Birds and predatory arthropods are often implicated in pest control, but their relative impact and how this is mediated by variation in tree cover requires elucidation. We excluded birds and ground predatory arthropods from rapeseed plants in 2.5 Â 1 m plots in 26 homegardens in Ethiopia, leaving the same sized control plots. From six groups of pla...
Article
Full-text available
Bird and arthropod predation is often associated with natural pest control in agricultural landscapes, but the rates of predation may vary with the amount of tree cover or other environmental factors. We examined bird and arthropod predation in three tree-rich and three tree-poor landscapes across southwestern Ethiopia. Within each landscape we sel...
Article
Full-text available
It has been suggested that the composition of different non-crop land-use types along with tree density regulate local biodiversity in agricultural landscapes. However, specific data is limited, not least from tropical regions. We examined how different land-use types and forest cover at different scales influenced the abundance and species composi...
Book
Full-text available
This booklet is about “Ecosystem services and biodiversity in tropical agricultural landscapes” and is the final report written in a popular way from the research project “Examining mismatches between management and the supply of ecosystem services in Ethiopian agroecosystems across scales in space and time.” The booklet is also available in Amha...
Book
Full-text available
The interaction between small scale agriculture and the diversity of organisms in mosaic landscapes.
Book
Full-text available
The interaction between small scale agriculture and the diversity of organisms in mosaic landscapes.
Article
The significance of apiculture in vegetation characterization was studied in Welmera district, central Ethiopia. The study was undertaken to find out the possible use of honey pollen and bee pollen nutritional analysis for vegetation characterization. Thirty one honey samples (half kilogram/each sample), were purchased from 21 villages and collecti...
Article
Honeybees and flowering plants have a well-developed system of interdependence. Beekeeping fits in well alongside many other livelihood endeavours such as conservation activities and uses the same natural resources such as forestry and agricultural landscapes. The significance of apiculture in vegetation conservation was studied in Walmara Wereda,...

Network

Cited By