Abbreviation: J. Ecol. Nat. Environ.
Start Year: 2009
Page 1 of 15, showing 20 records out of 291 total, starting on record 1, ending on 20
DOI: 10.5897/JENE2015. 0525[Article Number: 7E8F16357002]
Climatic envelope modeling techniques implemented in two algorithms, Genetic Algorithm for Rule-set Production (GARP) and bioclimatic variables (BIOCLIM) were used to assess effects of climatic conditions on distributions of plants and anticipate how climate would have delimited their distribution under future conditions using a liana species Chasmanthera dependens as a case example. In all, 120 geo-referenced plant... Read more.
DOI: 10.5897/JENE2015.0538[Article Number: 6E4E54455715]
This study sought to establish an inventory of plant species established at three gravel borrow pits around Gaborone, Botswana. At each, plant data were collected from randomly selected 10 x 10 m quadrats within and up to 30 m away from the borrow pits. Species of Acacia were the most numerous in the pits, while more non-woody than woody species were established within the pits. Most woody species within the pits were... Read more.
DOI: 10.5897/JENE2015.0536[Article Number: 435CBDA55718]
The present study was carried out in two grass land of Kumrat Dir Kohistan, North Hindukush regions of KPK Pakistan. Locally these two grass land are known as Roshi Dab and Bothore Dab. The area of these two Dabs is about 400 hectare. The elevation of these two Dabs ranges from 7665 feet to 7954 feet while the geographic location of the study site was N 35° 33.249’ and E 72° 12.258’. Stratified... Read more.
DOI: 10.5897/JENE2015.0533[Article Number: 117F36455610]
This paper reviews several studies on the impacts of climate change on developing countries in Africa, one of the most vulnerable continents due to lack of financial, technical and institutional capacity to cope with the impacts of climate change. Due to various anthropogenic activities, greenhouse gases are increasing in the atmosphere at an alarming rate which leads to extreme temperature and flooding, loss of soil... Read more.
DOI: 10.5897/JENE2015.0534[Article Number: 263E9F655616]
The Douala-Edea Wildlife reserve rich in biodiversity is a reservoir for the collection of non-timber forest products (NTFPs). These products are involved in the management of natural resources by providing additional income to households. This study examines the effect or contribution of NTFPs in household incomes of local residents in the reserve and has as objective to identify and evaluate the marketing of these... Read more.
DOI: 10.5897/JENE2015.0532[Article Number: FBCBC6955306]
This study derived eco-climatic indices; a moisture quality index, onset and cessation dates, hydrologic growing season and Aridity Index all for the period (1950-2006), in addition to using National Oceanographic and Atmospheric Administration an Advanced Very High Resolution Radiometer images to derive a Soil Adjusted Vegetation Index map. These derived eco-climatic parameters were integrated using Geographic... Read more.
DOI: 10.5897/JENE2015. 0520[Article Number: 22407AA54993]
The physicochemical properties of water from Igun gold mine reservoir in Southwestern, Nigeria were assessed to estimate the impacts of human activities on the water and the level of cyanide-detoxifying enzymes in fish species were investigated. This was with a view to studying the survival of the fish species in the reservoir despite its high level of pollution. These werewith a view to studying the survival of the... Read more.
DOI: 10.5897/JENE2015. 0527[Article Number: 479233854995]
A botanical inventory and diversity of exotic and native species was assessed in the rangeland of Narok North sub-County, Kenya. A total of 72 species were recorded, composed of 64 species of trees and shrubs and eight species of herbs. They belonged to 34 families and 52 genera. Fabaceae was the richest family with 16 species, followed by Euphorbiaceae (five), Moraceae and Myrtaceae (four each). In total, 48 species... Read more.
DOI: 10.5897/JENE2015. 0523[Article Number: 4505E2154369]
Drought and desertification are twin global environmental problems. Nigeria is faced with rapid desert encroachment affecting fifteen northernmost states from moderate to severe rate. Out of the 909,890 km2 of the country’s land area, about 580,841 km2 accounting for 63.83% of total land is impinge on by desertification. Climatic variability and anthropogenic activities such as deforestation, extensive... Read more.
DOI: 10.5897/JENE2015. 0529[Article Number: 18C4DCF54377]
The aim of is study was to determine the growth performance of Mexican A. franciscana Yucatan Peninsula strains in different salinity tests. Four populations from different habitats were studied: Real de las Salinas (RSAL), Cancun (CAN), San Crisanto (CRIS) and Celestun (CEL). Nauplii from each population were inoculated in 200 L plastic tanks with 160 L of dissolved rock salt water at 40, 60, 80, 100 and 120 g L-1. The... Read more.
DOI: 10.5897/JENE2015. 0530[Article Number: 29B9D6754392]
The study was conducted on Gelesha Forest, Godere District and Gambella Regional State, Southwest Ethiopia to determine floristic composition and structural analysis of the forest. Systematic sampling method was used to collect vegetation data from 60 plots (20 m × 20 m) for trees and shrubs, 5 m x5 m for seedlings and saplings and 1 m × 1 m for herbaceous plants. Vegetation classification was performed... Read more.
DOI: 10.5897/JENE2015.0516[Article Number: 62B55E753915]
A study on reproductive and feeding ecology of rodents was conducted in agricultural areas of some selected kebeles (the smallest administrative unit in Ethiopia) of Sekoru district from February 2014 to December 2014. Rodents were captured by snap trapping using rat traps. During the whole study period, four rodent species, namely, Rattus rattus, Mastomys natalensis, Arvicanthis dembeensis and Lemniscomys barbarus were... Read more.
DOI: 10.5897/JENE2015.0521[Article Number: 162677E53913]
The plankton of Odot Stream, Niger Delta, Nigeria were investigated between June and August, (wet season) and October - December, 2014 (dry season) using standard analytical procedures. The data generated were subjected to descriptive statistics and community structure analysis. A total of 37 species of Phytoplankton belonging to four taxa were identified in ascending order as follows: Xanthophyceae (4.7%),... Read more.
DOI: 10.5897/JENE2015.0511[Article Number: 29F27B052727]
Earthworms are regarded as the bio-indicators of soil quality. Also, due to several beneficial ecosystem services provided by earthworms, focus has been given to earthworms in agriculture management. So, there is need of knowing the distribution of earthworms, factors affecting their distribution and modification of soil environment due to them. With the aim of characterizing earthworm distribution in Panchase area,... Read more.
DOI: 10.5897/JENE2015.0514[Article Number: A66639252728]
This study was carried out to quantify ecological distribution, abundance and effects of Lantana camara on different land uses and to assess the perception of local community concerning its impacts on environment and biodiversity of the study area, Abay Millennium Park, Bahir Dar. To do so, 20 m x 20 m (trees) inside which is 5 m x 5 m nest plots (shrubs and saplings), and 2 m x 2 m (seedlings) were laid.... Read more.
DOI: 10.5897/JENE2015.0499[Article Number: F60599752732]
Tannins are known to have anti-digestive properties among primates and undoubtedly influence food selection among grey-cheeked mangabeys (Lophocebus ugandae) living in Mabira and Lwamunda forest reserves. During the 24 months study, we observed the feeding behaviour of three groups of mangabeys in forests with different levels of degradation and management histories. Results indicated that mangabeys selected fruits... Read more.
DOI: 10.5897/JENE2015.0506[Article Number: 1210F1552737]
Arbuscular mycorrhizal fungi (AMF) are important microbial symbionts for plants especially when soil phosphorus (P) and nitrogen (N) are limited. Little is known about the distribution of AM hyphae in natural systems of tropical soils across landscapes and their association with different land uses. We studied mycorrhizal hyphal abundance in a wildlife grazed system, a livestock grazed system and under cultivated soils... Read more.
DOI: 10.5897/JENE2015.0515[Article Number: 78A0BA252741]
Large scale rubber, oil palm and banana plantations have replaced pristine coastal ecosystems in Tiko, Cameroon, through which freshwater flows. Agrochemical inputs into aquatic systems have the potential to influence phytoplankton community structure through adjustment of physico-chemical characteristics of water. Since plantation establishment in Tiko, Cameroon, no studies on the impacts of the agro-chemicals used on... Read more.
DOI: 10.5897/JENE2014.0485[Article Number: A3F946752231]
Assessing the impact of anthropogenic activities on forest ecosystems dynamics is valuable in managing and maintaining the long-term productivity of forests and ensuring forest ecosystem sustainability and ecological balance. In view of this, the objective of this study was to evaluate the induced effects of anthropogenic activities on the forest˗savanna zones in Northern Ghana. The study assessed the impacts on the... Read more.
DOI: 10.5897/JENE2015.0504[Article Number: 35F4F5452258]
Intolerable sulfide emission was spotted at several areas in tidal flats of the Ariake Sea, Japan. Sulfide is naturally produced in tidal flats and rapidly oxidized by sulfur-oxidizing bacteria (SOB). This makes them important players in controlling released sulfide by sulfate-reducing bacteria. A part of SOB can grow heterotrophically and we isolated them from a conserved muddy tidal flat in the Midorikawa Estuary,... Read more.
Page 1 of 15, showing 20 records out of 291 total, starting on record 1, ending on 20