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: 368

JENE Articles

Community structure and population status of Drosera burmanii Vahl. with new distributional record in Tripura, India

November 2011

Quantitative data of community structure and the current status of ecologically and economically important Drosera burmanii Vahl. Populations were gathered at Tripura, India, from two different stands, Suryamaninagar (Site i) and Ishanchandranagar (Site ii). The area of occupancy of Drosera in both sites was measured. A total of 31 species (26 genera of 18 families) were recorded to be associated...

Author(s): Koushik Majumdar, B. K. Datta and Uma Shankar

  • Article Number: E23834F10227

Food preference of the sea urchin Tripneustes gratilla (Linnaeus, 1758) in tropical seagrass habitats at Dar es Salaam, Tanzania

November 2011

The sea urchin Tripneustes gratilla is the most well-known seagrass grazer in the Western Indian Ocean and a few cases of overgrazing have been reported. However, few studies on their feeding preference have been performed in this region. In this study, the food items in the gut contents of T. gratilla collected from seagrass beds and in a bare sediment in intertidal areas of Dar es Salaam, Tanzania,...

Author(s): Thomas J. Lyimo, Florence Mamboya, Mariam Hamisi and Charles Lugomela

  • Article Number: CE57F1D10235

Impact of climatic change on agro-ecological zones of the Suru-Zanskar valley, Ladakh (Jammu and Kashmir), India

November 2011

An attempt was made to divide the Suru-Zanskar Valley of Ladakh division into agro-ecological zones in order to have an understanding of the cropping system that may be suitably adopted in such a high altitude region. For delineation of the Suru-Zanskar valley into agro-ecological zones bio-physical attributes of land such as elevation, climate, moisture adequacy index, soil texture, soil temperature, soil water holding...

Author(s): R. K. Raina and M. N. Koul

  • Article Number: 0120EBC10245

Taxonomic identification and distribution of biofouling organisms in Deilam port in Iran

November 2011

  In this research, sampling was done from the biofouling organisms of piles of Deilam port from Autumn 2009 to Spring 2010. Two stations were chosen and samples were taken from three zones: super tidal zone, inertial zone and sub-tidal zone in 1 × 1 m2. At the same time, the environmental factors (pH, salinity, conductivity, temperature) were measured. Ecological indices such as Shanon, species richness,...

Author(s):   Laleh Mosavi Dehmordi, Leila Karami, Najmeh Safarpor and Behnam Alesadi

Heavy metal contamination in leaves of Mangifera indica around a coal fired thermal power plant in India

November 2011

  The aim of this study is to evaluate the differences in the bioaccumulation of some elements in Mangifera indica tree leaves  grown around a coal fired Thermal Power Plant (affected areas) and in  other areas (control) 25 km away from Thermal Power Plant (TPP). Toxic group of metals (Pb, Cd and Cr) in an average displayed higher levels (28.0, 2.4 and 3.2 ppm for Pb, Cd and Cr respectively)...

Author(s):   Sengupta S., Chatterjee T., Ghosh P. B., Sarkar S. and Saha T.

Palynological investigation of haze dust in Ayetoro-Itele Ota, Southwest Nigeria

November 2011

  The biological contents of the March 2010 hazy dust in Nigeria deserve verification due to the attendant panic it brought to the public. 3 g of dust deposited on the car bonnet of one of the authors was treated chemo-palynologically and microscopic study of the residue was carried out. The study reveals that the dust was rich in pollen grains, fungal spores and hyphae. No pteridophyte spore was recovered....

Author(s):   P. A. Adeonipekun and M. John

The influence of stump diameter and height on coppicing ability of selected key Miombo woodland tree species of Zambia: A guide for harvesting for charcoal production

November 2011

  A study was undertaken to investigate the influence of stump diameter and stump height on the coppice effectiveness in relation to interspecific variation. The overall objective was to provide an understanding of the coppicing ability of the selected key miombo species in order to provide a basis for sustainable management of the species. A total of 102 stumps were observed. Coppice effectiveness results...

Author(s):   Ferdinand Handavu, Stephen Syampungani and Eric Chisanga

Evaluation of Carpolobia species (Hausa sticks) trade in the forest zones of South West Cameroon and Cross River State of Nigeria

October 2011

Carpolobia trade evaluation was carried out between 2003 and June 2010 in the Ejagham Forest Reserve of South West Cameroon and the Cross River State of Nigeria, with the objective of examining the harvesting, marketing and the economic contributions of Carpolobia trade to the National and International economies of Nigeria and Cameroon.Carpolobia as a Non Timber Forest Product (NTFP) is the stem of an ever...

Author(s): Nkwatoh Athanasius Fuashi, Labode Popoola, Iyassa Sabastine Mosua and Nkwatoh Ferdinand Wehmbazeyi

  • Article Number: C2C3C6B10111

Assessment of spatial distribution of pod borer, Cydia ptychora (Meyrick) on pigeonpea

October 2011

Spatial distribution of Cydia ptychora infested flower and pods of pigeonpea was studied in the experimental field of Department of Life Sciences, Manipur University. Various indices of dispersion, such as variance, variance to mean ratio, Lloyd’s index of patchiness, mean crowding, Iwao’s regression and Taylor’s power law were evaluated to study the distribution pattern. Distribution pattern...

Author(s): S. Subharani and T. K. Singh

  • Article Number: 340B54410118

The driving forces of Boye wetland degradation and its bird species composition, Jimma, Southwestern Ethiopia

October 2011

The aim of this study was to assess the causes of Boye wetland degradation and to identify the bird species composition of the wetland. To achieve the stated objective, group discussion with the local communities was carried out on the causes of wetland degradation and prioritizations were done. In addition, soil samples were collected from wetland and converted lands (agriculture, grazing...

Author(s): Tariku Mekonnen and Abebayehu Aticho

  • Article Number: B5BC74910122

The influence of host tree morphology and stem size on epiphyte biomass distribution in Lusenga Plains National Park, Zambia

October 2011

The influence of host tree morphology and stem size on epiphyte biomass distribution in host trees was assessed in Lusenga Plains National Park, Zambia for the period 2004 to 2007. A total of 8 ha were sampled in bush land, woodland and riparian forest vegetation communities. Epiphytes were collected, dried and weighed to obtain biomass, which was apportioned between different host tree species, vertical and horizontal...

Author(s): Chansa Chomba, Rhamadhani Senzota, Harry Chabwela and Vincent Nyirenda

  • Article Number: 327AAB010145

Change actors’ analysis and vegetation loss from remote sensing data in parts of the Niger Delta region

October 2011

Studies on land use changes have shown that human activities inevitably result in medium to large scale changes in the ecosystem. These changes can be examined and monitored both in the short or long term using remote sensing data and the right analytical computer packages. Researchers have in the past focused on the land use changes over the years. However, few studies are available on the identification of causative...

Author(s): Oluseyi Fabiyi

  • Article Number: FF5765910157

Organochlorine and organophosphorus pesticide residues in water and sediment from Yala/Nzoia River within Lake Victoria Basin, Kenya

October 2011

This study set out to survey pesticide usage and concentrations of their residues in lowerYala/Nzoia catchment areas of Lake Victoria, Kenya during the dry and rainy seasons of 2009. Water and sediment samples were analyzed for selected organochlorine and organophosphorus pesticide residues using gas chromatography equipped with electron capture detector. The findings of the survey showed that the banned...

Author(s): Safina Musa, John Wageni Gichuki, Phillip Okoth Raburu and Christopher Mulanda Aura,

  • Article Number: 451094910191

Bacterial and fungal endophytes associated with grains and roots of maize

September 2011

The study was carried out to determine the microbes of maize grains sourced from five markets in Akungba and Ikare-Akoko, Ondo State, Nigeria. Bacterial and fungal microbes from roots of two maize cultivars DMR-LSR-Y and TZMSR-W were also investigated using the pour plate method. Results showed that grains from Oja Oba had the highest bacterial population of 4.8 × 105 cfu/g, while, the highest fungal load of...

Author(s): Orole, O. O. and Adejumo, T. O.

  • Article Number: 2342BEB10067

Credit characteristics of forest based entrepreneurs in Iseyin Local Government Area, South West Nigeria

September 2011

This study was carried out to assess the credit characteristics of forest based entrepreneurs in South West Nigeria. Structured questionnaire were employed in obtaining primary data for this study. Average interest charges were 11% which exceeded the single digit interest rate recorded. The collateral and non-collateral credit sources were almost equal, 51 and 49% respectively. Descriptive statistics and Logit model...

Author(s): F. A. Azeez, F. Awe, A. O. Ajibola and M. A. Amoo

  • Article Number: F43BAC910073

Vascular flora on coal mine spoils of Singrauli coalfields, India

September 2011

A field study was conducted to analyze the floristic composition of coal mine spoils of Singrauli coalfields, India, spreading over an area of about 2200 km2. A total of 197 plant species were reported representing 45 families. Herbaceous flora dominates the floristic composition of coal mine spoils. The Poaceae, Fabaceae and Asteraceae are the dominant families of the flora on coal mine spoils of Singrauli coal...

Author(s): Arvind Singh

  • Article Number: C257E0C10081

Growth and physiological responses of Solanum lycopersicum to atonik and benzyl adenine under vernalized conditions

September 2011

A foliar application of Atonik (250, 500 and 1000 ppm) and benzyl adenine (25, 50 and 100 ppm) under vernalization was investigated on Solanum lycopersicum (var. Beto 86) plant. All determined growth parameters (root length, root fresh and weights, shoot length, number of leaves, number of nodes, total leaf area, shoot fresh and dry weights and relative water content) were inhibited in response to...

Author(s): Samia Ali Haroun, Wafaa Mohamed Shukry­, Mohamed Ali Abbas and Amr Mohamed Mowafy

  • Article Number: 70A76C910084

Wood craft enterprises participation and return analysis in Oyo State

September 2011

The focus of this study is to examine the factors that enhance participation in wood craft enterprises, as well as estimating the return (profit) to such enterprises in Oyo State. A total of one hundred and fifty (150) copies of well structured questionnaires were administered in three Local Government Areas of Oyo States (Iseyin, Ibarapa Central and Akinyele Local Government Areas) with 50 copies of such questionnaires...

Author(s): Azeez F. A., Ojo O. B., Onajobi A. A., Ajibola A. O. and Amoo M. A.

  • Article Number: 9AEB17210092

Exotic flora of the Banaras Hindu University Main Campus, India

September 2011

The exotic flora of the main campus of Banaras Hindu University, India, spreading over 1,300 acres of land area, was analyzed. A total of 183 exotic plant species are reported from the university campus, represented by 149 genera and 58 families. The flora of American origin dominates the exotic floristic composition of the university. The Fabaceae, Asteraceae and Poaceae are the dominant families of the exotic flora of...

Author(s): Arvind Singh

  • Article Number: 87AD2E610097

Abundance of mouth brooding tilapiines in the Kafue floodplains, Zambia

September 2011

Chikopela Sikazwe Theresa1*, Katongo Cyprian2 and Hangoma Gordon Mudenda2

Author(s): Chikopela Sikazwe Theresa, Katongo Cyprian and Hangoma Gordon Mudenda

  • Article Number: A37C17110102

The effects of climate and edaphic factors on plant colonisation of lava flows on Mount Cameroon

August 2011

Tropical ecosystems exhibit several ecological characteristics that make their sustainable management a very difficult task. Surveys were conducted from December 2000 to December 2002 to study the influence of climate and edaphic factors on vegetation cover, species diversity and distribution on three lava flows of Mount Cameroon.  On each of the lava flows, thirteen plots in the centre...

Author(s): Fonge B. A., Focho D. A., Egbe  E. A., Tening A. S., Fongod A. N., Neba G. A.and Mvondo Ze A.

  • Article Number: 095396110000

Anthropological influence in coastal water and its impact on olive ridley turtle: A case study at Rushikulya mass nesting site

August 2011

The olive ridley turtle (Lepidochelys olivacea) is known for its spectacular mass nesting behavior. The Rushikulya river mouth has emerged as one of the major mass nesting site in the world. To study the status of hydrological characteristics viz. depth, air and water temperature, salinity, conductivity, pH, total suspended solid, turbidity, dissolve oxygen, biochemical oxygen demand, nutrients (NO2-N, NO3-N,...

Author(s): S. N. Bramha, U. C. Panda, P. Rath, P. K. Mohanty and K. K. Satpathy

  • Article Number: D87933510008

Human - induced impact to the environment and changes in the geomorphology: Some examples of inland and coastal environments in Greece

August 2011

It has been observed that human activity in the form of engineering works, such as channelization (drainage pits and drainage dams, deepening and creation of canals), dam construction (hydroelectric power dams, irrigation dams and water supply dams), diversion and culverting (arrangement and redirection of river channels), as well as other human interventions and activities (intensification and development of...

Author(s): Αristeidis Mertzanis, Αndreas Papadopoulos, Gerasimos Goudelis, Anastasia Pantera and George Efthimiou

  • Article Number: B92E27F10022

Effects of humic compounds and phosphate-solubilizing bacteria on phosphorus availability in an acid soil

July 2011

This study aims at elucidating the combined effects of humic compounds and phosphate-solubilizing bacteria (Pseudomonas putida) to improve characteristics of ultisol and to increase the yields of soybean conducted in a glasshouse. The humic compounds are extracted from rice-straw compost, the phosphate-solubilizing bacteria obtained from Bogor Agricultural University, and the soil (Typic paleudult) collected from...

Author(s): Sugeng Winarso, Didik Sulistyanto and Eko Handayanto

  • Article Number: DAA1F0A9933

Contribution to the knowledge of non wood forest products of the far north region of Cameroon: Medicinal plants sold in the Kousséri market

July 2011

An ethnobotanical survey was conducted in June 2005 among sellers of non wood forest products settled at the Kousséri market, Kousséri sub-division, Logone et Chari division, far north region of Cameroon. A total of 29 medicinal plants were recorded comprising 26 genera and 21 families. Malaria, diarrhoea, jaundice, fever, and hernia were the major ailments in terms of the number of references made by...

Author(s): Jean Lagarde BETTI, Serge Rostand MEBERE YEMEFA’A and Francis NCHEMBITARLA

  • Article Number: 352110F9939

Comparative assessment of edaphic features and herbaceous diversity in lower Dachigam national park, Kashmir, Himalaya

June 2011

Assessment of edaphic features and herbaceous diversity was evaluated in two different sites (Site I, forest) and (Site II, pastureland) in the lower Dachigam National Park of Kashmir, Himalaya. The study was done on seasonal basis and the results revealed higher trend for edaphic factors at Site I (moisture content, 31.22%; organic carbon, 4.33% and total nitrogen, 0.33%). However, soil temperature varied from (6 to...

Author(s): S. A. Shameem, N. Irfana  Kangroo and G. A. Bhat

  • Article Number: D697CCD9823

Evaluation of the antifungal effects of rosemary oil and comparison with synthetic borneol and fungicide on the growth of Aspergillus flavus

June 2011

Rosemary (Rosmarinus officinalis L.) with more than 240 active pharmacological and nutritional compounds is important from the botanical point of view. Pharmacological studies show the antifungal properties of Rosemary plant. The essential oil analyses of the aerial parts of rosemary collected from Kerman province were obtained using gas chromatography and gas chromatography mass spectrometry. The study of...

Author(s): M. Moghtader, H. Salari and A. Farahmand

  • Article Number: 7FE3B079864

A preliminary study of arthropod associated with carrion in Yaounde, Cameroon: A first step in forensic entomology in Central Africa

June 2011

The first investigation of arthropods associated with carrion in Cameroon was carried out within the campus of the University of Yaounde I (Cameroon) from 17thJanuary, to 3rd April, 2006. Carcasses of rats (Rattus norvegicus Berkenhout, 1769 var WISTAR)were exposed for colonization by the local fauna of arthropods. The visiting and colonizing arthropods were collected daily during the study periods. 1980...

Author(s): Feugang Youmessi Francis Dupont, Djieto-Lordon Champlain, Ateba  Awona  Jean Cyrille and Bilong Bilong Charles Félix

  • Article Number: 98742FA9877

Microbiological quality of an edible caterpillar of an emperor moth, Bunaea alcinoe

May 2011

An investigation into the microbiological status of processed caterpillar of a lepidopteran,Bunaea alcinoe revealed the presence of six genera of bacteria and three genera of moulds including one species of yeast. The microbial population of 4.49 × 107 (bacteria) and 9.5 × 106 (fungi) indicates contamination of the product. Pseudomonas aeruginosaand Proteus mirabilis are food...

Author(s): W. Braide., S. Oranusi, L. I. Udegbunam, C. Akobondu and R. N. Nwaoguikpe

  • Article Number: A565CDE9753

Ecological estimation of forest soils in Azerbaijan

May 2011

While afforestation is relevant in the study of the ecological state of forest soil, analyses of the soil samples and valuation of the soil types to obtain final yield class is important. Within the National State Afforestation Program, as the research object, the south-east slope of the big Caucasus has been chosen for checking up soils under woodland and woodless areas. After having taken soil samples in this zone,...

Author(s): Ulviyya Mammadova

  • Article Number: 0DE5F459761

The influence of grass biomass production on hippopotamus population density distribution along the Luangwa River in Zambia

May 2011

Hippopotamus is a selective nocturnal grazer consuming 50 kg of grass. Due to its large body size, it requires large areas of grass often exceeding 5 hectares within 2-5 km of the water body to maintain good body condition. In this study, hippo population size and density, grass biomass and grazing capacity were assessed in March 2008 along a 165 km stretch of the Luangwa River. The study area was subdivided into study...

Author(s): Wilbroad Chansa, Ramadhan Senzota, Harry Chabwela and Vincent Nyirenda

  • Article Number: 3B1B73D9771

Relationship between the status of arbuscular mycorrhizal colonization in the roots and heavy metal and flavonoid contents in the leaves of Juniperus procera

May 2011

In the southern region of Saudi Arabia, junipers forest faces the risk of deterioration because of their low regeneration capacity. Arbuscular mycorrhizal fungi (AMF) are known to confer some protection against the various environmental stresses that may affect the regeneration process. This field study was carried out in the junipers forest to evaluate the relationship between the presence of AMF in the roots and the...

Author(s): Amal Ahmed Mohammed AL-Ghamdi, Hasnah Mohd. Jais and Aisha Khogali

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

  • Article Number: 0BA55AA9620

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

  • Article Number: 9550CD49636

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

  • Article Number: 4F565629666

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

  • Article Number: 4A3AB606014

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

  • Article Number: 51D3B126023

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.

  • Article Number: 706FFB16047

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

  • Article Number: 1C5F0B46054

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

  • Article Number: 5E8F71C6080

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

  • Article Number: 266D99D5947

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

  • Article Number: 71CA50F5952

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

  • Article Number: F3EC2A65964

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

  • Article Number: F3D49E45971

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

  • Article Number: CE94A3B5892

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

  • Article Number: 0CFC2845902

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

  • Article Number: CDE3F495910

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

  • Article Number: B1C3CE55928

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

  • Article Number: D2EEA9110407

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.

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