Diversity And Distribution Of Moist Afro Montane Forest Pdf

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The diverse climate of various ecological regions of the country has driven the establishment of diverse vegetation, which range from Afroalpine vegetation in the mountains to the arid and semi-arid vegetation type in the lowlands. The formation of Ethiopian vegetation is highly connected to the climate and geological history of the country. Highland uplift and rift formation due to volcanic forces formed novel habitats with different topography and climatic conditions that have ultimately become drivers for vegetation diversification.

The principal human-induced disturbance regimes affecting this forest include logging and livestock grazing. We used a cluster analysis to identify plant communities and non-metric multidimensional scaling NMDS ordination to investigate environmental factors that influenced the distribution of the emergent plant communities. Three plant communities were identified: a Juniperus procera-Maytenus senegalensis community, which represented a phase of the potential natural dry Afromontane forest vegetation on steep slopes with shallow soils, a Pterolobium stellatum-Celtis africana community, found on more mesic sites, and a Cadia purpurea-Opuntia ficus-indica community, typically representing severely disturbed habitats. Altitude, slope, soil depth and distance to the nearest stream, which we collectively interpreted as a moisture gradient, and forest disturbance separated the plant communities.

Bird Diversity in Nensebo Moist Afromontane Forest Fragment, South Eastern Ethiopia.

Ethiopian moist evergreen Afromontane forests are vital for the conservation of plant diversity, including genetic pools of Coffea arabica L. However, these forests are continuously shrinking and need empirical scientific studies for their effective conservation and sustainable management. This study was, therefore, conducted to assess woody species composition, diversity, endemicity, structure, plant communities, and environmental determinants in Sirso moist evergreen Afromontane forest of southern Ethiopia.

Environmental variables such as altitude, slope, aspect, disturbance levels, and geographical location were recorded for each main plots. Vegetation structure and importance value index IVI , diversity, vegetation classification, and correlation with environmental factors were analyzed. A total of 74 woody species representing 70 genera and 34 families were identified.

Seven species were endemic. Rhus glutinosa A. Rich subsp. The highest number of species was recorded for the Rubiaceae family 8 , followed by Euphorbiaceae 6 , and Asteraceae 6.

Five plant communities were identified: Maesa lanceolata — Dombeya torrida , Galiniera saxifraga — Cyathea manniana , Vepris dainellii — Triumfetta tomentosa , Dracaena fragrans — Rytigynia neglecta , and Arundinaria alpina. The distribution of these communities depends on altitude, slope, and disturbance factors.

Syzygium guineense Wild. Harms, and Galiniera saxifraga Hochst. Bridson were species with the highest IVI, while P. Population structure of woody species showed an inverted J-shape, a J-shape, a bell-shape, and an irregular shaped pattern.

These latter three population structure revealed signs of disturbances, and were negatively correlated with altitude and slope. The study showed that the Sirso moist evergreen Afromontane forest is species rich and should be given conservation priority to maintain endemic and native species. This is a preview of subscription content, access via your institution. Rent this article via DeepDyve. J Ecol Nat Environ 8 5 — Google Scholar.

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Diversity and production in an Afromontane Forest

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Shumi and P. Rodrigues and J.

Ethiopian moist evergreen Afromontane forests are vital for the conservation of plant diversity, including genetic pools of Coffea arabica L. However, these forests are continuously shrinking and need empirical scientific studies for their effective conservation and sustainable management. This study was, therefore, conducted to assess woody species composition, diversity, endemicity, structure, plant communities, and environmental determinants in Sirso moist evergreen Afromontane forest of southern Ethiopia. Environmental variables such as altitude, slope, aspect, disturbance levels, and geographical location were recorded for each main plots. Vegetation structure and importance value index IVI , diversity, vegetation classification, and correlation with environmental factors were analyzed. A total of 74 woody species representing 70 genera and 34 families were identified. Seven species were endemic.

For forest ecosystem management to be effective, explicit understanding of the species diversity-environmental relationship along elevation gradient is crucial. This study aimed at identifying and describing plant communities and also documenting their species diversity. Evaluation of relationships between selected environmental variables and species diversity was another objective of this study. These plots were used for shrub and herb diversity assessment. Within each sample plot, all plant species were documented and their scientific names were identified.


Afromontane Forest Diversity and the Role of Grassland-Forest role in defining tree species distributions in species rich tropical forests. with other environmental variables such as altitude and moisture remain unknown.


Woody Species Diversity and Vegetation Structure of Wurg Forest, Southwest Ethiopia

Birds are one component of biodiversity. Ethiopia is rich in biodiversity resources. The avian diversity record is far from complete. There is no scientifically documented information on bird species composition and abundance at Nensebo forest. The objective of the study was to assess species composition, relative abundance and distribution of birds at Nensebo forest in southern Ethiopia.

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Introduction

This study was aimed to determine woody species composition, diversity, and vegetation structure and to investigate major threats to Wurg forest, southwest Ethiopia. Voucher specimens were brought to the Ethiopian Biodiversity Institute for identification and deposited there. R program version A total of 76 woody species representing 40 families were recorded. Rubiaceae was the dominant family followed by Asteraceae.

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