Church Forests in North Gonder Administrative Zone, Northern Ethiopia

Wassie, Alemayehu; Teketay, Demel; Powell, Neil

doi:10.1080/14728028.2005.9752536

Cited by 91 publications

(88 citation statements)

References 2 publications

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“…The reasons for variation in floristic composition at the three study sites could be due to excessive anthropogenic disturbances, disparity in conditions for regeneration and exploitation of some species, especially at Xobe (Wassie et al, 2005). Anthropogenic disturbances, such as logging or cutting trees, usually, result in an immediate decline in species diversity (Noble and Dirzo, 1997).…”

Section: Hyphaene Petersianamentioning

confidence: 99%

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around <i>Molapo</i> Farming Areas of the Okavango Delta, Northeastern Botswana

Neelo¹,

Teketay²,

Kashe³

et al. 2015

OJF

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Stand structure, diversity and regeneration status of woody species were investigated in open and exclosed dry woodland sites in Island Safari, Shorobe and Xobe, northeastern Botswana. A total of 105, 111 and 130 quadrats, measuring 20 × 20 m each, were laid down along parallel line transects in the three sites, respectively, to collect data. A total of 47 species, representing 16 families and 24 genera, were recorded in the study sites. Of these, 33 species representing 13 families and 20 genera, 41 species representing 15 families and 23 genera and 27 species representing 10 families and 14 genera were encountered in Island Safari, Shorobe and Xobe, respectively. The most diverse family was Fabaceae followed by Combretaceae and Tiliaceae at all the three sites. The most diverse genus was Acacia, followed by Combretum and Grewia. The diversity of woody species in the study sites were 2.18, 2.15 and 1. sii and A. luederitzii in Xobe. The alarming result was the fact that 71%, 80% and 85% of the woody species recorded in Island Safari, Shorobe and Xobe, respectively, exhibited hampered regeneration and, thus, unhealthy population structures. Therefore, there is an urgent need to address the observed unhealthy population structures of the woody species through investigation of the major causes of their hampered regeneration, and also designing measures that will facilitate natural and artificial regeneration of these species at the three study sites.

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Section: Hyphaene Petersianamentioning

confidence: 99%

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around <i>Molapo</i> Farming Areas of the Okavango Delta, Northeastern Botswana

Neelo¹,

Teketay²,

Kashe³

et al. 2015

OJF

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“…Today, remnants of the old stands have been reserved only around old churches and monasteries in these highlands (Bongers et al 2006). These sanctuaries are presently the main source of information to reconstruct the historical forest status of the area (Wassie et al 2005). In the Ethiopian highlands J. procera grows naturally in pure stands or mixed with Podocarpus falcatus (Thunb.)…”

Section: Introductionmentioning

confidence: 99%

Anthropogenic and natural causes influencing population genetic structure of Juniperus procera Hochst. ex Endl. in the Ethiopian highlands

Sertse

Gailing

Eliades

et al. 2010

Genet Resour Crop Evol

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Juniperus procera is economically highly important but threatened tree species. It is the only species among 67 taxa in the genus Juniperus that naturally grows in Africa and south of the equator extending up to 18°S in Zimbabwe. Ethiopia is assumed to host the largest J. procera populations, which are also believed to have high genetic variation owing to their wide ecological amplitude. This study assessed genetic variation at AFLPs of J. procera populations in the Ethiopian highlands. In the study six populations, namely Chilimo, Goba, MenageshaSuba, Wef-Washa, Yabelo and Ziquala were included. A total of 20-24 trees from each population were investigated based on 128 AFLP band positions. AMOVA revealed that most of the variation (94%) resided within populations of J. procera suggesting extensive gene flow among populations which is attributable to the outcrossing mating system and effective gene transport mechanisms of the species. However, genetic differentiation among populations was still significant (P \ 0.05), and the differentiation was significantly (P \ 0.05) correlated with geographic distance. All population pairs were significantly (P \ 0.05) differentiated except for Menagesha-Suba and Wef-Washa. These two populations also showed the highest gene diversity (H j = 0.301 and H j = 0.297, respectively). These results are in accordance with historical records that claim the establishment of the Menagesha-Suba juniper population as plantation of seedlings from Wef-Washa back in fifteenth century.

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“…For example, sacred groves, which form in situ conservation sites and act as a refuge for several wild mammal and bird species, are becoming ecologically important [26]. The role played by exclosures and protected areas, including eco-lodges, in enhancing woody species regeneration that will emerge from the soil seed banks have also been well documented [13][14][15][16][17][18]31,32]. Moreover, the exclosures can buffer against the depletion of genetically adapted local variants and overall biodiversity in a given region.…”

Section: Densities Of Wild Mammals Birds and Woody Speciesmentioning

confidence: 99%

“…There are a number of studies that suggested higher species diversity, i.e, species richness and evenness, in areas that relatively receive better conservation from human and livestock induced encroachments [13][14][15]. Moreover, compared with open areas, there are a number of studies that documented higher species diversity of wild mammals, birds, and woody species inside area exclosures and protected areas [16][17][18][19]. Unlike wild mammals and woody species richness, the species richness of birds was higher in the EHH than in the FGH.…”

Section: Species Diversities Of Wild Mammals Birds and Woody Speciesmentioning

confidence: 99%

Contribution of the Guassa Community Eco-Lodge to the Conservation of Wild Mammals, Birds and Woody Plants in Menz-Gera Midir District, North Shewa Administrative Zone, Ethiopia

Tadesse¹,

Teketay²

2017

IJAWB

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In recent decades, several eco-lodges have been established in biodiversity areas of Ethiopia, but quantitative scientific information that helps guide the sustainable management of eco-lodges is lacking. This study was the first attempt that examined the role of the GCEL for the conservation of wild mammals, birds, and woody plants. The objective of the study was to characterize and quantify species diversities and densities of wild mammals, birds, and woody plants in the compound of the eco-lodge and in the adjacent field. Following a total of six randomly aligned transects, field data on the species richness and abundance of wild mammals and birds across the landscape were collected in the compound of the GCEL (here after the EHH) versus in the adjacent field (here after the FGH).Moreover, a systematic sampling design was employed to lay a total of 39 circular plots (i.e, each with a radius of 10m) and collect data on the species richness and abundance of woody plants. The results revealed that species richness, diversity, and evenness of wild mammals were 11, 1.6 and 0.67, respectively, in the EHH and 11, 1.4 and 0.6, respectively, in the FGH. Similarly, species richness, diversity and evenness of birds were 33, 3.3 and 0.96, respectively, in the EHH, and 29, 3 and 0.88, respectively, in the FGH. The woody species were represented by 16, 2.7 and 0.97 species richness, diversity, and evenness, respectively, in the EHH, and 16, 2.6 and 0.94 species richness, diversity, and evenness, respectively, in the FGH. The total mean densities of wild mammals recorded in the EHH and FGH were 16.0 and 7.5 individuals, respectively. Similarly, the total mean densities of birds computed in the EHH and FGH were 668.5 and 158.3 individuals, respectively. Moreover, the total mean densities of woody species estimated in the EHH and FGH were 37,665.2 and 16,845.6 individuals, respectively. The findings of this study generated quantitative scientific information for policy-makers and planners that guides them toward better and more informed decision-making for eco-lodge establishment and management that is geared toward biodiversity conservation.

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Church Forests in North Gonder Administrative Zone, Northern Ethiopia

Cited by 91 publications

References 2 publications

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around <i>Molapo</i> Farming Areas of the Okavango Delta, Northeastern Botswana

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around <i>Molapo</i> Farming Areas of the Okavango Delta, Northeastern Botswana

Anthropogenic and natural causes influencing population genetic structure of Juniperus procera Hochst. ex Endl. in the Ethiopian highlands

Contribution of the Guassa Community Eco-Lodge to the Conservation of Wild Mammals, Birds and Woody Plants in Menz-Gera Midir District, North Shewa Administrative Zone, Ethiopia

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Church Forests in North Gonder Administrative Zone, Northern Ethiopia

Cited by 91 publications

References 2 publications

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around &lt;i&gt;Molapo&lt;/i&gt; Farming Areas of the Okavango Delta, Northeastern Botswana

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around &lt;i&gt;Molapo&lt;/i&gt; Farming Areas of the Okavango Delta, Northeastern Botswana

Anthropogenic and natural causes influencing population genetic structure of Juniperus procera Hochst. ex Endl. in the Ethiopian highlands

Contribution of the Guassa Community Eco-Lodge to the Conservation of Wild Mammals, Birds and Woody Plants in Menz-Gera Midir District, North Shewa Administrative Zone, Ethiopia

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Product

Resources

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Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around <i>Molapo</i> Farming Areas of the Okavango Delta, Northeastern Botswana

Stand Structure, Diversity and Regeneration Status of Woody Species in Open and Exclosed Dry Woodland Sites around <i>Molapo</i> Farming Areas of the Okavango Delta, Northeastern Botswana