Journal of
Ecology and The Natural Environment

  • Abbreviation: J. Ecol. Nat. Environ.
  • Language: English
  • ISSN: 2006-9847
  • DOI: 10.5897/JENE
  • Start Year: 2009
  • Published Articles: 386

JENE Articles

Threats and conservation strategies for the African cherry (Prunus africana) in its natural range- A review

April 2011

The world’s Prunus africana bark demand used to be satisfied by exports, approximately 4000 tonnes per year from a few African countries, led by Cameroon exporting 62%, Madagascar, 20% and Uganda and Equatorial Guinea, 7% each. This coupled with unsustainable bark harvesting methods created pressure on the natural resource which suffered population decline and resulted in the species listing in Appendix...

Author(s): Luke Jimu

Sustainable land management in Zaria using Remote Sensing and GIS techniques

April 2011

The need for effective planning and disaster prevention is the main reason for real time data generation   provided by Remote Sensing and GIS. Zaria is fast becoming more unplanned due to increase in population and the consequent human influence leading to high rate of land use-land cover change. This study therefore looks into changes in land use-land cover between 1985 and 2005 with a view to providing...

Author(s): I. I. Abbas and Y. A. Arigbede

Nutrients movement characteristic in terrace sawah occupied by cascade irrigation system in West Sumatra, Indonesia

April 2011

West Sumatra is one of Indonesian rice bowl. The landscape of this province dominated by mountainous area with beautiful terrace sawah lied from the middle slope to the lowland. The most common rice cultivation management in this area is application of cascade irrigation system with blanked amount of chemical fertilizer application. This study intends to figure out, whether this kind of sawah management sustains are...

Author(s): Darmawan Darma, Syafrimen Yasin and Tsugiyuki Masunaga

Preliminary study of the changes in water temperature at pond Cibuntu

March 2011

Water temperature is one of the important parameters in the aquatic systems, and it remains an interesting subject of world-wide environmental research. The objective of this study is to identify the parameters of hydrological, meteorological and topological that influence water temperature and its change at pond Cibuntu based on data from April 2008 to April 2009. In addition, the analysis of changes in water...

Author(s): Luki Subehi and M. Fakhrudin

Composting certain agricultural residues to potting soils

March 2011

Four agricultural residues namely, sheath of peanut pods, flax shivers, red sawdust and white sawdust, were composted with different amendments for four months under greenhouse and field conditions. Results emphasized that composting proceeded at different rates and was principally influenced by the type of residues and/or added amendments. Initial bio-fortification of residues with cellulose decomposing microorganisms,...

Author(s): M. Saber, Z. Mohammed, S. Badr-el-Din and N. Awad

Distribution and abundance of the cyanobacterium Richelia intracellularis in the coastal waters of Tanzania

March 2011

The filamentous heterocystous cyanobacterium, Richelia intracellularis Schmidt have been suggested to be among the most important nitrogen fixing cyanobacteria in tropical and subtropical waters, but they are less studied in the tropical Western Indian Ocean waters. The spatial and temporal distribution of this cyanobacterium was studied in the coastal waters of Zanzibar and Dar es Salaam, Tanzania....

Author(s): Lyimo, Thomas J.

Structural characterization of the woody plants in restinga of Brazil

March 2011

The structure of the woody component of in restinga (tropical coastal vegetation) of Brazil was surveyed in order to describe and examine the relationship between community structure, water table, and soil nutrients. The survey was undertaken between January and March 2005 in an area with a forest physiognomy, employing the point-center quarter method with 100 sampling points. Soil samples were collected for...

Author(s): Eduardo Bezerra de Almeida Jr, Francisco Soares Santos-Filho, Elcida de Lima Araújo and Carmen Sílvia Zickel

Medicinal plants used in traditional treatment of malaria in Cameroon

March 2011

In order to fight against malaria in Cameroon, an ethnobotanical survey of medicinal plants was conducted in the town of Maroua, Far North Region of Cameroon from 5th to 30th December 2009 with 800 persons. The survey results revealed that 49 medicinal plants species belonging to 27 families were identified in the fight against malaria. The Cesalpiniaceae family is the most exploited for treatment of malaria. The locals...

Author(s): Saotoing Pierre, VroumsiaToua, Tchobsala, Tchuenguem Fohouo Fernand-N, Njan Nloga Alexandre-Michel and Messi Jean

Ecologically important and life supporting plants of little Rann of Kachchh, Gujarat

February 2011

Since historic times, human beings were basically in need of plants for satisfying their daily requirements like food, shelter, clothes and medicine. Due to close relationship with environment they established a distinctive system of knowledge concerning the utilization of plants. The human and animal life depends on the life supporting plant species surrounding the area. It has now become a concern of the modern world...

Author(s): Kalpesh Ishnava, V. Ramarao, J. S. S. Mohan and I. L. Kothari

Macroinvertebrates’ community structure in Rivers Kipkaren and Sosiani, River Nzoia basin, Kenya

February 2011

Benthic macroinvertebrates from Rivers Kipkaren and Sosiani in the upper reaches of River Nzoia basin, Kenya, were sampled semi-quantitatively monthly from December 2006 to May 2007 using a 0.5 mm mesh size scoop net in the riffles, pools and runs. Seven sampling sites were selected on the areas of the rivers along a longitudinal gradient in relation to anthropogenic impact. Physico-chemical parameters were...

Author(s): Christopher Mulanda Aura,  Phillip Okoth  Raburu and Jan Herrmann

Physicochemical gradients and in situ yields in pelagial primary production of the middle reaches of Imo River in Etche, South-eastern Nigeria

February 2011

We investigated seasonal variations and influences of some physicochemical attributes of the Southeastern-Nigeria Imo River on the primary productivity at its middle course between March 2007 and February 2008. In situ determinations of water temperature, pH, turbidity, and dissolved oxygen (DO) were made with HORIBA U-10 water quality checker at 7 sampling locations and water samples collected in 500 mL...

Author(s): Dike Henry Ogbuagu, Ngozi A. C. Chukwuocha, Chidiogo Grace Okoli and Roseline Feechi Njoku-Tony

Concentrations of heavy metals in soil and water receiving used engine oil in Port Harcourt, Nigeria

February 2011

The concentrations of heavy metals (Cu, Ni, Pb, Zn) in soils and water receiving used engine oil were investigated. Soil and water samples were collected at discharge and control points at each study site. The heavy metals were analyzed using atomic absorption spectrophotometer. The results show that about 80% of used engine oil was disposed of directly into the environment and 20% was recycled via use in civil works....

Author(s): A. G. Warmate, T. J. K. Ideriah, I. T. Tamunobereton A. R. I., U. E. Udonam Inyang and T. Ibaraye

Urban expansion and vegetal cover loss in and around Nigeria’s Federal Capital City

January 2011

Since Abuja became Nigeria’s Federal Capital Territory in 1976; it has been experiencing rapid expansion, urbanization and significant changes in its physical landscape. This study used Remote sensing and GIS techniques to identify, mark and measure the extent of change in the various land uses from the Landsat imageries of 1987 and 2001, and Nigeriasat-1 imagery of 2006. The study...

Author(s): Ujoh Fanan, Kwabe Isa Dlama and Ifatimehin Olarewaju Oluseyi

Impact of Lantana camara L. invasion on riparian vegetation of Nayar region in Garhwal Himalayas (Uttarakhand, India)

January 2011

Lantana camara L. (Verbenaceae), an exotic from tropical America, has invaded vast areas of forests surrounding Nayar River in Garhwal Himalayas (Uttarakhand, India). Several factors like high reproductive potential, absence of preferred predators, evergreen nature and sufficient moisture provided by river water favour extraordinary growth of L. camara in this area. In this study, the impact of L....

Author(s): Parveen Kumar Dobhal, Ravinder Kumar Kohli and Daizy Rani Batish

Insecticidal action of hexane extracts of three plants against bean weevil, Callosobruchus maculatus (F.) and maize weevil, Sitophilus zeamais motsch

January 2011

A study was conducted to evaluate the insecticidal action of hexane extracts of three locally available plants namely: Lantana camara (Verbenaceae), African nutmeg [Monodora myristica (Gaerth) Dunal] and Enuopiri [Euphorbia lateriflora, Schum and Thonner] against bean weevil Callosobruchus maculatus (F.) and maize weevil,Sitophilus zeamais) Motsch with response to the...

Author(s): O. O. Ogunsina, M. O. Oladimeji and L. Lajide

Soil micro-arthropods in a secondary rainforest, Rivers State, Nigeria: Ecosystem health indicators of oil pollution

January 2011

Comparisons were made of the species richness and densities of soil micro-arthropods- (mites, collembolans) from a relatively undisturbed secondary forest and a nearby area, where there had been an oil spill, approximately 1 year before the commencement of the 2 year study, May, 2007 to April, 2009. Soil samples were taken monthly with an 8.5 cm diameter bucket-type auger. Extraction was by the Berlese-Tullgren funnel....

Author(s): Samuel Okiwelu , Gbarakoro Tambeke and Badejo Adetola

Estimation of conidial concentration of freshwater Hyphomycetes in two streams flowing at different altitudes of Kumaun Himalaya

January 2011

Freshwater Hyphomycetes commonly occurs in all types of natural freshwater streams and form one of the most important components of freshwater ecosystem as decomposers. They produce tremendous conidia in submerged condition. In the present study, concentration of these fungi in per unit volume of water in two freshwater streams situated at different altitudes viz., Ratighat (1200 m asl) and Vinayak (1500 m asl) was...

Author(s): Pratibha Arya and S. C. Sati

Spatial assessment of farmers’ cooperative organizations in agricultural development in Gurara area of Niger State, Nigeria

January 2011

The cooperative organizations among farmers are viewed as contributory forces towards growth and development of Agricultural production in recent times. The cardinal objective was to assess such elements that enhance their performance. Both primary and secondary data were used for the study. The primary data were collected with the aid of structured questionnaire administered among 60 different registered farmers’...

Author(s): Adefila, J. O.

The role of the Miombo Woodlands of the Southern Highlands of Tanzania as carbon sink

December 2010

Inventory and monitoring of existing carbon pools in ecosystems is important for establishment of baselines for Reduced Emissions from Deforestation and Forest Degradation (REDD) as well as understanding the global carbon budget. We used tree dimensions to quantify the carbon pools of two sites in Miombo woodlands of the Southern Highlands of Tanzania. Mean above ground carbon density of the Miombo ecosystem was 19.2t...

Author(s): P. K. T. Munishi, S. Mringi, D. D. Shirima and S. K. Linda

When ecological functions are more important than richness: A conservation approach

December 2010

In this work, we utilize the assessment of functional groups (FG) and functional diversity (FD) to evaluate and compare the ecological functions of two types of dry forest of South Eastern Brazil. Hence, we hypothesized that forests with different species richness could have similar FD and FG, but distinct ecological functions. The floristic composition from two physiognomies (deciduous and semideciduous forests) of six...

Author(s): Vagner Santiago do Vale, Ivan Schiavini, Ana Paula de Oliveira and André Eduardo Gusson

New report from presence and distribution of Allactaga firouzi in Iran

December 2010

The Iranian jerboa Allactaga firouzi (Womochel, 1978) is one of the rarest rodent species in the world and it has been reported exclusively from a single site in central Iran. Due to the lack of enough information on the ecology of this species, its conservation status was changed to “Data Deficient” category in late 2008. No additional data on A. firouzi was published since its first...

Author(s): Saeed Mohammadi and Gholamreza Naderi

Resuspension of sediment as a method for managing shallow eutrophic lagoons

November 2010

The article sets out to demonstrate that resuspension of sediment could be used to counteract the consequences of eutrophication and to manage degraded coastal lagoons subject to frequent periodic dystrophic processes.  This is done by a general review of the literature on resuspension of sediment, focusing on its effects in shallow eutrophic lagoons and the results of specific research recently conducted by the...

Author(s): Mauro Lenzi

Impact of wood cuts on the structure and floristic diversity of vegetation in the peri-urban zone of Ngaoundere, Cameroon

November 2010

The main objective of this paper was to study the impact of various wood cuts on the structure and the floristic diversity of the savannas, and to seek for durable solutions against deforestation during a four year investigation. An inventory of the woody layer on 120 sites areas of 50 × 50 m showed that savannas have structures in "L". This structure translate the state of the degradation of...

Author(s): Tchobsala  , Amougou Akoa and Mbolo Marie

Adaptive success index: A criterion for identifying most important species

November 2010

This article introduces the Adaptive Success Index (ASI) as a criterion for deciding which species are actually important in a given list of species either based on the Importance Value Index (IVI) or on the Cover Value Index (CVI).   Key words: Adaptive Success Index (ASI), Importance Value Index (IVI), Cover Value Index (CVI).

Author(s): Diogo S. B. Rocha, Leilton S. Damascena and Flávio França

History of river channel modifications - A review

October 2010

Many river basins have witnessed episodes of modifications and shifts in its courses in the geological past. The study of these aspects can be regarded as part of a trend towards the understanding and explanation rather than depiction of how rivers adjust, under varied terrains of landform behaviour. The methodological appraisals that arise from such intensive research are illustrated in this paper using a detailed...

Author(s): Mohammed-Aslam M. A and A. Balasubramanian

Towards sustainable management of natural resources in the Mara river basin XE "Mara River Basin" in Northeast Tanzania

October 2010

Lack of coordination among sectors and institutions is among factors that results in ineffective management of natural resources in most basins in east Africa including Tanzania XE "natural resources" . In many cases, this has reported to be the most factor contributing  to natural resources degradation and conflicts between societies. This paper presents findings on different factors affecting...

Author(s): Majule, A. E.

Effect of cement dust pollution on the vascular cambium of Juglans regia (L.)

October 2010

Woody trees increase in girth by the activity of meristematic tissue called vascular cambium. The vascular cambium comprises fusiform and ray initials, which give rise to vertically oriented elements that is, vessels, fibers, tracheids etc. and horizontally oriented elements that is, rays. The present study reveals that there is reduction in dimensions and proportions of fusiform and ray initials in Juglans...

Author(s): Bilal Ahmad Wani and Amina Khan

Alien plant invasion and their impact on indigenous species diversity at global scale: A review

September 2010

Plant invasion is a potent threat to the species diversity around the world during the 21stcentury after habitat loss. Plant invasions are human introduced or of natural means like winds, birds, animals, water. It affects indigenous species diversity, soil ecology and dynamics and economics of agricultural ecosystem throughout the world.  If this process of biological invasion is remained continuous for years to...

Author(s): Kuldip S. Dogra, Sarvesh K. Sood, Parveen K. Dobhal and Seema Sharma

Harvesting and marketing of Gnetum species (Engl) in Cameroon and Nigeria

September 2010

The harvesting and marketing of Gnetum africanum and Gnetum bucholzianum (Engl), a major Non-Timber Forest Product (NTFP) in West and Central Africa, was carried out between 2002 - 2008, with the objective of examining the production and marketing ofGnetum species and their economic contributions to the economies of Cameroon and Nigeria and that of West and Central Africa at large. Besides...

Author(s): Nkwatoh Athanasius Fuashi, Labode Popoola, Iyassa Sabastine Mosua, Nkwatoh Ferdinand Wehmbazeyi, Ndumbe Njie Louis and Ewane Marcus Elah  

Ecology and behavior of the estuarine dolphin, Sotalia guianensis (Cetacea: Delphinidae), in Sepetiba Bay, South-eastern Brazil

September 2010

The dynamics of habitat utilization by Sotalia guianensis has been investigated. Between January 1997 and May 1998, 145 h of direct observations were made from a fixed location at Ponta do Zumbi on Marambaia Island, and 249 groups of dolphins were sighted. Initial and final times of the observation, approximate location, presence of calves, activities performed by the dolphins and prevailing weather conditions were...

Author(s): Mariana Freitas Nery, Sheila Marino Simão and Tereza Pereira

‘Traditional religion and natural resources’: A reflection on the significance of indigenous knowledge systems on the utilisation of natural resources among the Ndau people in South-eastern Zimbabwe

September 2010

The depletion of natural resources is one of the greatest challenges with far reaching consequences if sustainable environmental management programmes are not properly put into practice in Zimbabwe. The major contending issue, however, is how the exigency of sustainable environmental management can be contextualised in light of the local indigenous knowledge systems. Although literature is abound on the recommended...

Author(s): Oswell Rusinga and Richard  Maposa

Phytoplankton diversity at Watlab Ghat in Wular Lake, Kashmir

August 2010

The present study on Wular Lake, located at a distance of 34 km from Srinagar city of Kashmir valley, was undertaken from March, 2007 to February, 2008 to study various limnological parameters including plankton. A total of 64 phytoplankton spp. were identified. Bacillariophyceae was found to be the most dominant group at the selected site. The population density of bacillariophyceae varied from a minimum of 32 No./ml...

Author(s): Altaf H. Ganai, Saltanat Parveen, Asif A. Khan and Maryam H

Studies on biomass changes and nutrient lock-up efficiency in a Kashmir Himalayan wetland ecosystem, India

August 2010

Wetlands are landscape sinks which accumulate and sequester a wide range of nutrients, heavy metals and pesticides. Whilst some studies hitherto have addressed the phyto-sociology and sequestering potential of wetland plants in isolation, we attempted to integrate the two aspects in a Kashmir Himalayan Ramsar site (Hokersar wetland), India. The results of studies (November, 2000 – October, 2001) on the seasonal...

Author(s): M. A. Khan and Manzoor A. Shah

A survey of ectoparasites from wild rodents and Anourosorex squamipes in Sichuan Province, South-west China

August 2010

Lei Wei1, 2a, Xinwei Wang1a, Chengmin Wang1and Hongxuan He1*

Author(s): Lei Wei, a, Xinwei Wanga, Chengmin Wangand Hongxuan He

Age and growth rate determination using growth rings of selected miombo woodland species in charcoal and, slash and burn regrowth stands in Zambia

August 2010

The field of dendrochronology has not been widely applied in tropical species because many scientists generally perceive that such species rarely produce distinct growth rings. This study was undertaken to determine if the key Miombo species produce distinct growth rings and to determine the relationship between the number of growth rings and age of the tree and stem diameter. The results showed a high correlation...

Author(s): Stephen Syampungani, Coert Geledenhuys and Paxie W. Chirwa

Observations on nesting ecology of White-breasted Kingfisher Halcyon smyrnensis (Aves: Coraciiformes) in Cauvery Delta, Southern India

July 2010

The nesting ecology of the White-breasted Kingfisher Halcyon smyrnensis was studied in Cauvery delta of Tamil Nadu, Southern India between 2005 and 2006. A total of 46 nests were studied and the White-breasted Kingfishers were found to excavate long tunnels ranging in length from 48 - 152 cm (mean 114.1 ± 1.7 cm) and ending in widened egg chambers. The mean length and circumference of the nest entrance...

Author(s): A. Mohamed Samsoor Ali, S. Asokan and R. Manikannan

Review of hydrologic assessment models for predicting pesticide leaching in Nigeria

June 2010

The need to evaluate the potential risks of pesticides usage that may lead to contamination of water resources has been the reason behind the development of models for predicting pesticide leaching in soils and watershed areas. Various assessment models have been developed in the past. For example, the vulnerability of groundwater to pesticide leaching may be evaluated by indices and overlay-based methods, by...

Author(s): Usman Sheikh Abdullahi

Green marketing or green wash? A comparative study of consumers’ behavior on selected Eco and Fair trade labeling in Sweden

June 2010

Green marketing is in the focus of present marketing strategy due to the pressure that comes from inclined environmental awareness in the global climate change. Different initiatives have been considered to support environmental programme and practices and one of the meaningful business initiatives is eco or fair trade labeling. Eco-label provides the information of product contribution in the context of environmental...

Author(s): Atiq Uz Zaman, Sofiia Miliutenko and Veranika Nagapetan

Impact of soil amendment on phytotoxicity of a 5-month old waste engine oil polluted soil

June 2010

The present study investigated the effects of soil amendment on the remediation of waste engine oil (WEO) polluted soil, as well as the eventual phytotoxic effects of remediated amended soil on some growth parameters of cowpea. There was significant decrease in heavy metal concentration of the polluted soil more than average, nine months after amendment. There was also total remediation of some PAH compounds...

Author(s): Ikhajiagbe Beckley and Anoliefo Geoffery Obinna

Resource sharing under hi-education agglomeration

May 2010

In China, recent years have witnessed a trend of higher education agglomeration (HEA) which affects job markets and industries through diffusion, sharing, and matching mechanisms. The mechanisms in this new trend can be explained by some previous models in industrial agglomeration, but meanwhile have characters that deserve to be paid attention. Happening between educational and industrial sectors, as the following...

Author(s): Dai Xie’er, Dai Ming and Feng Guocan

Ecological connectivity framework in the state of Selangor, Peninsular Malaysia: A potential conservation strategy in the rapid changing tropics

May 2010

Ecological connectivity refers to the structural and functional connectivity of landscapes that facilitates suitable habitats for flora and fauna. The state of Selangor, peninsular Malaysia, is hosting a natural mosaic of landscapes ranging from montane, hill, lowland, peat-swamp, and mangrove forests to lake, river and coastal landscapes. This is a unique feature in the tropics and valuable habitat for diverse flora...

Author(s): Mohammad Imam Hasan Reza and Saiful Arif Abdullah

Ecology of macrozoobenthos in Shallabugh wetland of Kashmir Himalaya, India

May 2010

Macrozoobenthos comprise of an important group of aquafauna by way of their contribution to ecosystem stability, besides acting as potential bioindicators of trophic status. Being efficient energy converters, they constitute an important link in the aquatic food web. In view of importance of such an aquatic bioresource, on one hand, and scarcity of information about them, on the other, the present study aimed at working...

Author(s): Sameera Siraj, A. R. Yousuf, F. A. Bhat and M. Parveen

Effect of P2O5 on coriander induced by AMF under water deficit stress

April 2010

This experiment was carried out using a split factorial based randomized complete block design with 4 replications. The factors studied included two levels of drought stress, application and non-application of mycorrhiza (Glomus hoi) and 0, 35 and 70 kg ha-1 phosphorus applications. The results showed that drought stress had significant effect on essential oil yield, biological yield, shoot P content,...

Author(s):

Opportunistic animal’s diet depend on prey availability: spring dietary composition of the Red Fox (Vulpes vulpes) in the Dhorpatan Hunting Reserve, Nepal

April 2010

The red fox (Vulpes vulpes) is a least concerned omnivore, distributed widely between 2,500m and 4,500m in different protected areas of Nepal. We investigated the spring feeding habits of the red fox in the Dhorpatan Hunting Reserve of Nepal. Livestock depredation by red fox, wolf and leopard, and the consequently retaliatory killings of these carnivores by local livestock herders, is becoming a serious issue for the...

Author(s): Achyut Aryal, S. Sathyakumar and Brigitte Kreigenhofer

Biofuel potential and FAO’s estimates of available land: The case of Tanzania

March 2010

While there exists under-utilized lands in several countries of sub-Saharan Africa, the drive towards transforming huge areas of land to biofuel plantations must be reviewed critically. Both the facts that much of these lands are presently covered with forests or classified as wetlands, having a high carbon storage capacity and that these lands are used by local communities for their survival, must be acknowledged. The...

Author(s): Hans Morten Haugen

Biological, chemical and biochemical dynamics during litter decomposition at different depths in arable soil

March 2010

A field study was conducted to elucidate interactions among soil fauna, plant litter, soil nutrients and biochemical activities during litter decomposition in tropical desert land. Faunal association, nutrient dynamics, soil respiration and dehydrogenase activities were monitored in Hardwickia binata (T) tree based silvipasture system with Cenchurus cilliaris (CC) and Lesiurus sindicus (LS)...

Author(s): G. Tripathi, R. Deora and J. Singh

Review of pollution sources and controls in Caspian Sea region

February 2010

Experts believe that the release of over one billion cubic meters of industrial, chemical and household wastewater into the Caspian Sea per annum has polluted the water, and reduced the level of oxygen jeopardizing over 400 aquatic species including sturgeons. Extraction and transportation of oil in the Sea are one of the pollution sources in the Seawater. Caspian Sea contains about 100000 million barrels of oil. It...

Author(s): N. Jafari

Cytotoxic and topoisomerase I inhibitory activities from extracts of endophytic fungi isolated from mangrove plants in Zhuhai, China

February 2010

To isolate endophytic fungi from mangrove plants in Zhuhai, China and examine their DNA topoisomerase I inhibitory and antitumor activity. Endophytic fungi were isolated using surface-sterilization methods and were identified by morphological or molecular evidence. DNA topoisomerase I inhibitory activities were measured by topoisomerase I-mediated DNA plasmid relaxation assay. Antitumor...

Author(s): Cai Xiaoling, Liang Xiaoli, Zhou Shining, Gao Junping, Wu Shuiping, Lai Xiaoming, She Zhigang and Lin Yongcheng

Preliminary studies on the ecology of Mbasa (Opsaridium microlepis (Gunther)) in Lake Nyasa around the Ruhuhu River

February 2010

The ecology of Opsaridium microlepis was studied in Lake Nyasa around the Ruhuhu River. The species is endemic to the lake and is economically very important. The catches of O. microlepis have declined tremendously and it is now regarded as a threatened species. The main objective of the study was to determine the probable reasons for the decline in the species populations in the Ruhuhu...

Author(s): Francis M.M. Chale

Plant communities and tree species associations in a Miombo ecosystem in the Lake Rukwa basin, Southern Tanzania: Implications for conservation

February 2010

This study assessed the plant communities and species associations in the eastern Miombo woodlands eco-region of the Lake Rukwa basin southern Tanzania. Information was collected from 288 temporary sample plots in 32 sampling sites established randomly in the area and covering as much variation in the landscape as possible. Detailed analysis of the vegetation identified six tree communities of conservation importance,...

Author(s): Pantaleo K. T. Munishi, Ruwa-Aichi P. C. Temu and Soka G.

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