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

Study of seasonal and spatial variation in surface water quality of Cauvery river stretch in Karnataka

January 2010

In this study, multivariate statistical techniques, such as discriminant, factor /principal component and cluster analyses were applied to water quality data set monitored in pre- and post- monsoon for twenty five locations during three years to investigate seasonal and spatial variations in river water quality. The variables were mainly divided into two categories viz., non-conservative – DO, BOD, COD, nitrates...

Author(s): K. Venkatesharaju, R. K. Somashekar and K. L. Prakash

Impact of small scale tobacco growing on the spatial and temporal distribution of Miombo woodlands in western Tanzania

January 2010

This paper examines the impact of tobacco farming on Miombo ecosystem in Western Tanzania. Methods employed include literature review, secondary data collection, data sets generation from satellite images (1984, 1995 and 2000) and fieldwork for ground verification. Data sets on tobacco production were computed to generate hectarage cleared for tobacco farming and tree felling for tobacco curing. Trend of tobacco...

Author(s): Pius Z. Yanda

The contents of zooplankton of the Tungabhadra river, near Harihar, Karanataka and the saprobiological analysis of water quality

December 2009

The plankton constitutes the basic food source of any aquatic ecosystems, which supports fish and other aquatic animals. Zooplanktons are microscopic animals that eat other plankton. The zooplankton community analysis and saprobiological characteristics of the Tungabhadra River using diversity index during December 2004 to November 2005. The present investigation can enrich knowledge on bio-indicators in understanding...

Author(s): B. Suresh, S. Manjappa, E. T. Puttaiah

Effects of sowing date and planting density on quantity and quality features in valerian (Valeriana officinalis L.)

December 2009

This study was conducted as split plot field experiment in a randomized complete block design with four replications for one year planting. The main factors were the sowing dates (10 August, 1 and 20 September) and sub factors were the planting densities (4, 8 and 12 plants/m2). Our results showed that sowing date (SD) and planting density (PD) significantly affected grain yield, essential oil yield, essential oil...

Author(s): Elham Morteza, Gholam Ali Akbari, Sayed Ali Mohammad Modares Sanavi and Hossein Aliabadi Farahani

Biology of pod fly, Melanagromyza obtusa Malloch on Cajanus cajan (L.) Millsp. in Manipur, India

December 2009

The biology of Pod fly, Melanagromyza obtusa Malloch (Diptera: Agromyzidae) was studied during 2004 - 2005 in the laboratory of Department of Life Sciences, Manipur University, Imphal (Altitude: 790 msl and Latitude: 23.83oN - 25.68oN) at a temperature of 17.39 ± 0.23oC and 59.16 ± 0.39% relative humidity. The mean longevity of the adult pod fly was 6.59 ± 0.38 days. The...

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

Influence of calcium presence on the absorption of cadmium by the rock oyster Saccostrea cucullata from Persian Gulf (Ostreidae; Bivalvia) in laboratory conditions

November 2009

Bioaccumulation of Cadmium as a function of its concentration and exposure time inSaccostrea cucullata (Ostreidae; Bivalvia) has been studied in filtered sea water and in laboratory. Results showed that the accumulation of Cd by gills was greater than other organs such as visceral mass. At 150 µg /l saturation as a function of time appeared in uptake of Cadmium by gills, all binding sites for Cd may be...

Author(s): Arash Javanshir, Maryam Shapoori, Hamed Azarbad, Ali-Reza Mir-Vaghefiand Afshin Daneh-Kar

Phytosociology of roadside communities to identify ecological potentials of tolerant species

November 2009

Roadside vegetations are open to contaminations of diverse heavy metals and other gaseous pollutants, and to physical disturbances of being trampled by pedestrians and crushed by vehicles continuously. Being a biodiversity-rich region of the world, roadsides of Southwest India, are expected to be rich in unique pollution-tolerant species. Tolerant plants in heavy metal polluted roadsides may be excluders or accumulators...

Author(s): J. G. Ray and Jojo George

Environment in Jeopardy: Consequences of climate change in Egypt

November 2009

Egypt is at risk to the possessions of global warming and potentially facing "catastrophic" consequences in sea level rise (SLR), water scar­city, agriculture and food insufficiency, loss of biodiversity and habitats and new pressures on human health and national economy. To confront these adverse impacts, the Prime Minister re-established in 2007 a National Climate Change Committee consists of scientists...

Author(s): Mohamed Saber

Development of pedo transfer functions (PTFs) to predict soil physico-chemical and hydrological characteristics in southern coastal zones of the Caspian Sea

October 2009

The research presented in this paper attempts to develop a more realistic model using multi-layer perceptron (MLP), a feed forward artificial neural network (ANN), instead of traditional models like multiple linear regression (MLR) for predicting some soil physico-chemical and hydrological properties. The study area (Guilan Province) which is located in northern Iran bordering to south side of Caspian Sea in a coastal...

Author(s): Hadi Rahimi Lake, Ali Akbarzadeh and Ruhollah Taghizadeh Mehrjardi

Physiological studies of some weeds grown under heavy metal and industrial effluent discharge zone of fertilizer factory

October 2009

The present study deals with the characterization of effluent released from Brahmaputra valley Fertilizer complex, Namrup, Assam, India and distribution of heavy metals in water near to effluent discharge channel. The extent of damage caused by the effluents on physiological and biochemical properties of plants was investigated. Chlorophyll pigment, foliar protein and sugar concentration were...

Author(s): Hemen Sarma, Aniruddha Sarma and C. M. Sarma

Abuse of nonhuman animals’ rights in the context of Zimbabwe’s Agrarian reforms (2000 - 2006): An ethical perspective

September 2009

The paper explores the history of the relationship between human and nonhuman animals in Zimbabwe and how her chaotic agrarian reforms that started in the year 2000 have impacted on the rights of nonhuman animals. It also attempts to make some comparisons between the moral status of nonhuman animals in Western tradition and traditional Zimbabwean societies. Finally, the paper explores the impact of Zimbabwe’s...

Author(s): Dennis Masaka

Deposition of heavy metals (Pb, Sr and Zn) in the county of Obrenovac (Serbia) using mosses as bioindicators

September 2009

In this study, the deposition of three heavy metals (Pb, Sr and Zn) in the county of Obrenovac (Serbia) in four moss taxa (Bryum argenteum, Bryum capillare, Brachythecium sp. and Hypnum cupressiforme) is presented. Distribution of average heavy metal content in all mosses in the county of Obrenovac is presented in maps, while long term atmospheric deposition (in mosses Bryum argenteum andB....

Author(s): Marko Sabovljević, Vanja Vukojević, Aneta Sabovljević and Milorad Vujičić

Bacteriological assessment of groundwater in Arkavathi and Vrishabhavathi basins, Bangalore, Karnataka

September 2009

In the newly developed and old parts of Bangalore city, municipal, domestic and industrial effluents are channelized into an open sewerage system. Most of the wells situated within 2 km radius of this open sewerage networks were found to be profoundly loaded with total and facal coliform. The average counts of total and facal coliform from the lake samples were 227 and 79 CFU/100 ml, 82 and 14 CFU/100 ml from the open...

Author(s): M. Jiban Singh, R. K. Somashekar, K. L. Prakashand and K. Shivanna

Diversity of true mangroves and their associates in the Pondicherry region of South India and development of a mangrove knowledgebase

August 2009

Mangroves are salt–tolerant forest ecosystems of tropical and subtropical intertidal regions of the world. There may be no other group of plants with such highly developed morphological and physiological adaptations to extreme conditions. They are a rich source of steroids, triterpenes, saponins, flavonoids, alkaloids and tannins. The Pondicherry region in South India has no forest, but has scattered patches of...

Author(s): Natesan Balachandran, Somasundaram Kichenamourthy, Jayaraman Muthukumaran, Mannu Jayakanthan, Sanniyasi Chandrasekar, Ankita  Punetha and Durai Sundar,

Physico-chemical characteristics of the open Mediterranean sea water far about 60 Km from Damietta harbor, Egypt

August 2009

The aim of the present study is to investigate the hydrographic characteristics, nutrient salts and some heavy metals (Fe, Cu, Zn, Pb and Ni) as well as chemical oxygen demand (COD), biological oxygen demand (BOD) and chlorophyll-a (Chl-a) in six vertical profiles in the open Mediterranean sea water far about 60 Km from Damietta harbor (Egypt). Water samples were collected during April 2007. The results revealed that...

Author(s): H. M. Faragallah, A. I. Askar, M. A. Okbah and H. M. Moustafa

Ecological status of waterfowl habitat on the Gemenc floodplain area in Hungary

August 2009

Hydrological, chemical and biological methods were applied to investigate the ecological status of the Gemenc floodplain area. The examined wetland was generally poor in planktonic organisms, however benthonic eutrophication was evident. 81 plant species and 17 associations were proved to appear during the examined years. Formation of vegetation was influenced by water-level. The hydrological regime changed...

Author(s): Ildikó Mátrai, GyÅ‘zÅ‘ Buzetzky and Gyula Lakatos  

Comparison of understorey vegetation in exotic and indigenous tree plantations in Shivalik Hills of N.W. Indian Himalayas (Himachal Pradesh)

August 2009

Presently, a total of 104 species belonging to 87 genera under 38 families of flowering plants in exotic (Eucalyptus citriodora Hook.) and indigenous (Pinus roxburghii Sarg.) tree plantations were determined.  There were higher numbers of plant species under the indigenous plantations as compared to the exotic ones. InEucalyptus plantations 60% species were exotic,...

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

Municipal drinking water source protection in low income countries: Case of Buea municipality- Cameroon

July 2009

Source water contamination poses a risk to public health and increases the cost of drinking water treatment. Source water protection is a proactive approach for the enhancement of drinking water quality and quantity. A combination of research methods (desk review, interviews and reconnaissance field appraisal) have been used to identify major drinking water sources in Buea, land use activities which constitute potential...

Author(s): Fidelis Folifac, Lydia Lifongo, George Nkeng,  and Susan Gaskin

The effect of MRET activated water on staphylococcal infection in vivo in animal model and in vitro on the culture of Staphylococcus aureus wood-46

July 2009

The article relates to detailed observation of the effect of MRET activated water with the modified molecular structure on Staphylococcus aureus. MRET water is produced with the help of Molecular Resonance Effect Technology patented in the USA. The investigation described in this article was conducted in animal model and in vitro at the Division of Microbiology and Immunology,...

Author(s): Igor Smirnov

Maxent modeling for predicting suitable habitat for threatened and endangered tree Canacomyrica monticola in New Caledonia

July 2009

Distribution data on threatened and endangered species are often sparse and clustered making it difficult to model their suitable habitat distribution using commonly used modeling approaches. We used a novel method called maximum entropy distribution modeling or Maxent for predicting potential suitable habitat forCanacomyrica monticola, a threatened and endangered tree species in New Caledonia, using small number of...

Author(s): Sunil Kumar and Thomas J. Stohlgren

Ecological integrity of wetland, their functions and sustainable use

June 2009

It is estimated that 90% of sewage in cities in developing countries are today discharged untreated into water bodies. The physical, biological, chemical and geologic interactions among different components of the environment that occur within a wetland. Anzali wetland complex is a good example of a natural wetland, characteristic of the South Caspian lowlands. It supports an extremely diverse wetland flora and fauna....

Author(s): N. Jafari

Projecting forest tree distributions and adaptation to climate change in northern Thailand

June 2009

Climate change is a global threat to biodiversity because it has the potential to cause significant impacts on the distribution of species and the composition of habitats. The objective of this research is to evaluate the consequence of climate change in distribution of forest tree species, both deciduous and evergreen species. We extracted the HadCM3 A2 climate change scenario (regionally-oriented economic development)...

Author(s): Yongyut Trisurat Rob Alkemade and Eric Arets

Mangrove biodiversity in the restoration and sustainability of the Nigerian natural environment

June 2009

The objective of this study was to evaluate the floral biodiversity and sustainability of Lagos wetlands. In other to achieve this, mangrove communities of 8 localities in Lagos and its environs viz: Atlas Cove, Five Cowrie Creek, Maroko, Berger De Motz, Palaver Island, Bayeku, Majidun and University of Lagos beach were sampled. A comprehensive quantitative vegetation analysis of the vegetation within the selected...

Author(s): Olusola H. Adekanmbi and Oluwatoyin Ogundipe

Carbon sequestration rate and aboveground biomass carbon potential of four young species

May 2009

Carbon is sequestered by the plant photosynthesis and stored as biomass in different parts of the tree. Carbon sequestration rate has been measured for young species (6 years age) of Shorea robusta at Chadra forest in Paschim Medinipur district, Albizzia lebbek in Indian Botanic Garden in Howrah district, Tectona grandis at Chilapata forest in Coochbehar...

Author(s): Bipal Kr Jana, Soumyajit Biswas, Mrinmoy Majumder, Pankaj Kr Roy and Asis Mazumdar

Soybean response to application of poultry manure and phosphorus fertilizer in the Sub-humid Savanna of Nigeria.

May 2009

Field experiments were conducted during the rainy seasons of 2003 and 2005 in Samaru in the Northern Guinea Savanna zone of Nigeria to test the response of two soybean varieties to application of poultry manure and phosphorus fertilizer levels. Soybean varieties TGx 1448-2E and TGx 1019-2EB were grown without and with 1t/ha of poultry manure and four levels of P (0, 13.2, 26.4 and 39.6 kgP/ha) in all possible factorial...

Author(s): U. F. Chiezey and A. C. Odunze

Assessment of bore wells water quality in Gwagwalada town of FCT

May 2009

Bore wells water quality was carried out in Gwagwalada town of the Federal Capital Territory of Nigeria in December 2008. Acceptable standard method of sampling and analysis was used. Samples were collected from one bore well from the 11 part of the town. Wells were selected for the sample collections randomly. Sampling point locations and elevation were obtained using G.P.S. Analysis was carried out for Total...

Author(s): S. Ishaya and I. B. Abaje

Plants canopy coverage at the edge of main communications network in Hyrcanian forests

May 2009

To investigate the plants canopy coverage on cut and fill slopes of Lat Talar forest roads in Hyrcanian zone, the systematic randomize sampling method with 60 parallelogram shape plots was used. Within each plot the herbaceous plants and regeneration of woody species were recognized and their canopy coverage was recorded in %. Results showed that the canopy coverage of herbaceous plants and regeneration on cut and fill...

Author(s): Aidin Parsakhoo, Seyed Ataollah Hosseini and Mohammad Reza Pourmajidian

Developing urban ecotourism in Kenyan cities: A sustainable approach

April 2009

Tourism is not only a powerful social and economic force but also a factor in the physical environment as well. It has the power to improve the environment, provide funds for conservation, preserve culture and history, to set sustainable use limits and to protect natural attractions. Ecotourism potentially provides a sustainable approach to development. A frequently cited definition of ecotourism originated with The...

Author(s): Roselyne N. Okech

A preliminary study on the response of mangrove mud crab (Scylla serrata) to different feed types under drive-in cage culture system

April 2009

The populations in coastal areas in east Africa have increased dramatically in the last decades, resulting in increased pressure on coastal resources. The examples are declining fish catches, deteriorating conditions of coral reefs and reduction of mangroves forests. The objective of the study was to asses the potential of grow-out Aquac of mud crabs Scylla serrata, as an alternative livelihood for resource-poor...

Author(s): David Mirera and Abdhallah Mtile

The crested porcupine, Hystrix cristata (Linnaeus, 1758) in Misurata, Libya

July 2007

The crested porcupine Hystrix cristata is the biggest rodent in Libya. It has a high value from the faunistic point. It is known in Libya from only one specimen killed in a suburb of Tripoli in 1962. With aids of an animal dealer in Misurata, this work will provide information on the morphology,feeding habits,habitat, cranial and dental characters of this animal.   Key words: Crested...

Author(s): Walid Fathy Mohamed

Non-harmonic covariation among life-history traits in amphipods (Hyalella azteca) and crayfish (Orconectes virilis) in Canadian boreal lakes

June 2007

Principal components analysis was used to determine the degree of covariance among life-history traits in eight populations of the amphipod Hyalella azteca and four populations of the crayfish Orconectes virilis inhabiting Canadian boreal lakes. Assumptions of tightly coupled traits which vary unidimensionally as a single fixed unit or "tactic" are untenable for these organisms. Instead,...

Author(s): R. L. France

Penicillium abundance and diversity patterns associated with cashew plantations in coastal sand dunes, Odisha, India

June 2007

The abundance and diversity of Penicillium species were studied from soils in coastal sand dunes of Odisha, India for a period of two years covering three distinct seasons. A total of 41 species were enumerated, of which the surface soil of the site without vegetation had 23 species while its sub-surface soil contained 24 species. In the site with Anacardium occidentale (cashew) plantation, the...

Author(s): T. Panda

Physico-chemical characterization of seed oil from Jatropha curcas L. genetic resources

May 2007

Studies were carried out to assess seed physico-chemical properties of Jatropha curcas genetic resources. Twenty five seed sources of J. curcas investigated in the current study exhibited wide variation for seed physio-chemical properties. The chemical properties of seed sources indicated superiority of more number of seed sources for iodine value, cetane number and saponification value. Hence...

Author(s): K. T. Parthiban, P. Selvan, M. Paramathma, S. Umesh Kanna, P. Kumar, V. Subbulakshmi and S. Vennila

Biosorption of heavy metals by immobilized and dead fungal cells: A comparative assessment

May 2007

Heavy metal resistant fungi were isolated from an electroplating industrial effluent samples that uses copper, cadmium and lead for plating. These isolates were tested to evaluate their applicability for heavy metal removal from industrial wastewaters. Initially the physico-chemical parameters of the samples were analyzed. The optimum conditions of pH, biomass concentration and heavy metal concentration were determined...

Author(s): B. Hemambika, M. Johncy Rani and V. Rajesh Kannan

Determination of trace metal levels in water and sediments of River Benue in Adamawa state, Nigeria

April 2007

This work was carried out in order to determine the trace metal levels in River Benue to acertain the extent of pollution of the water body. Trace metal levels in water and sediments of River Benue were determined using the atomic absorption spectroscopy (AAS) model. The results suggest that trace metal concentrations in River Benue were generally greater in the sediment samples than water samples. Among the metals...

Author(s): O. N. Maitera, V. O. Ogugbuaja and J. T. Barminas

Adjustment of Brunt's equation parameters for the Northern Brazilian Pantanal

April 2007

Researches involving the long-wave balance have intensified in order to understand the environmental performance of micrometeorological variables. This study tried to determine the parameters of Brunt’s equation for the northern Pantanal of Mato Grosso, using “genetic algorithm”. The results show that the values estimated by the model significantly approached the values obtained with data collected...

Author(s): Leone Francisco Amorim Curado, Thiago Rangel Rodrigues, Jonathan Willian Zangeski Novais, Allan Gonçalves de Oliveira, Thiago Meirelles Ventura, Carlo Ralph De Musis and José de Souza Nogueira

Page 8 of 8, showing 36 records out of 386 total, starting on record 351, ending on 386