Genetic diversity among commercial coffee varieties, advanced selections and museum collections in Kenya using molecular markers
February 2012
Molecular markers have effectively been applied to study genetic diversity and as markers of particular traits. This study assessed the diversity of twenty four (24) coffee genotypes using 10 Random Amplified Polymorphic DNA (RAPD) primers and 2 microsatellites (M24 and Sat 235). A total of 35 polymorphic bands were generated by the RAPD primers. The bands were scored for...
Fish biodiversity of Betwa River in Madhya Pradesh, India with special reference to a sacred ghat
February 2012
Many sacred natural sites are areas of great importance for the conservation of biodiversity. Sacred natural sites can be considered a subset of “sacred sites”, which may be defined as areas of special spiritual significance to people and communities. The wider category of sacred sites may include primarily natural areas (such as forests), but also human-built or monumental areas (such as...
Impact of climate change and gender roles in community adaptation: A case study of pastoralists in Samburu East District, Kenya
February 2012
Climate change continues to be of great concern both nationally and internationally, especially with regards to resource allocation and utilization for adaptation and mitigation. It is also clear that climate change is accelerating; taking almost catastrophic dimensions and the impacts are felt greater across the world than in the past thirty years. The impacts of climate change in the form of hurricanes,...
Collecting crop genetic resources in two Italian linguistic (Occitan and Ladin) islands and West Liguria with historical and ethnobotanical notes
February 2012
A research on exploration, collecting and safeguarding plant genetic resources in Italian linguistic islands by Institute of Plant Genetics of the National Research Council of Bari (Italy) and the Institute of Crop Science of Kassel University (Germany) started in 1996. In 2010 two other linguistic areas (Occitan and Ladin) were visited with the same aim. In addition, west Liguria was covered to complete...
Integrating environmental influences on patch occupancy into reserve selection and prioritization for the imperiled Carson Valley silverspot butterfly (Speyeria nokomis carsonensis)
February 2012
Integrating ecological information into conservation prioritization strategies is needed to facilitate land-use decisions about which habitat areas should be protected for imperiled species. Little effort has been directed toward incorporating variations in environmental determinants of patch occupancy across habitat types to optimize site selections for land acquisitions or habitat management activities,...
Regeneration pattern and size-class distribution of indigenous woody species in exotic plantation in Pugu Forest Reserve, Tanzania
January 2012
Pugu Forest Reserve is among coastal forests in Tanzania which is highly degraded through exploitation. To conserve the forest, part of natural forest was cleared and established exotic plantation to provide forest resource needs for the nearby residents. However, the regeneration pattern of indigenous trees in the exotic plantation was not monitored. It was aimed at assessing diversity, population structure,...
Ex-situ conservation of Polygonatum verticillatum (L.) Allioni under different types of organic treatments
January 2012
Meda (Polygonatum verticillatum) belongs to the family Liliaceae. It is an important ingredient of Astvarga and known for its various medicinal uses. This is a herb which is used against many diseases and as a tonic. Due to great market potential of this plant, it is harvested in uncontrolled way which is causing the decline of the herb from its natural habitat. Thus, there is a need for its in-situ as well...
Halophytic vegetation with their conservation in Jordan
January 2012
Two types of halophytic vegetation in Jordan are recognized: (1) Saline (halophytic) vegetation which occurs in the desert (saharo-arabian). The leading species of this kind of vegetation are mainlyTamarix nilotica, Beta vulgaris, Plantago spp, Lycium shawi, Aeluropus littoralis Anabasis spp, Atriplex halimus, Arthecnemum strobilicum, Stipa spp and Halopeplis spp. Such vegetation occurs around the...
Potential of parasitoid Trichogramma chilonis (Ishii) (Hymenoptera: Trichogrammatidae) against the sugarcane stem borer, Chilo infuscatellus (Lepidoptera; Pyralidae) under field conditions
January 2012
The present experiment reports the role of egg parasitoid, Trichogramma chilonis (Ishii) (Hymenoptera; Trichogrammtiade) as a pest management tool for the control of sugarcane stem borer (Chilo infuscatellus) under natural field conditions. The prime focus of study was to find out the effectiveness of egg parasitoid as a primary tool after its field releases at different time intervals....
Participatory wildlife management in Serengeti, Tanzania: Lessons and challenges from community based conservation outreach project
December 2011
Participation in natural resources management is a recent development in the modern biodiversity conservation. However it is challenged by the designing of community conservation outreach projects, socio-economic factors, and the cultural contexts of the communities. This paper addresses the participation of local people in wildlife management in the west of Serengeti National Park, Tanzania. It is based on...
Studies on agrestal diversity in the sugarcane field of Howrah district, West Bengal, India: use as an important bioresource for human welfare
December 2011
Agrestals are small plants (weeds) in the agricultural field which have had a huge impact on agriculture through the ages, and they continue to effect agricultural practices today. Generally, weeds are plants said to grow where they are not wanted. They compete with crops for water, nutrients, light and space thus reduce crop yields, but not all weeds are undesirable. In many systems, weeds are useful...
Diversity of Nepenthes spp. in West Kalimantan
December 2011
The paper is describing the result of survey of pitcher plants (Nepenthes spp.) diversity at six habitats in West Kalimantan. The research was conducted by investigation of specimens at Herbarium Bogoriense and Nepenthes nurseries in Pontianak. Besides that, the research was also supported by personal communication with Nepenthes hubbies in Pontianak and related literature. The study...
Survey of medicinal plants used to treat human ailments in Hawzen district, Northern Ethiopia
December 2011
Role of seed mycoflora on seed germination of Oroxylum indicum (L.) Vent. in Kumaun region of Indian Central Himalaya
December 2011
A number of fungi was isolated from the seeds of Oroxylum indicum (L.) Vent. The mycoflora associated with the seeds of this tree has not been previously reported from Kumaun region of Indian Central Himalaya. During the course of the study, mycoflora such as Fusarium solani, Aspergillus niger, Aspergillus nidulens, Penicillium sp., Trichoderma...
Prunus diversity- early and present development: A review
December 2011
Genus Prunus comprises around 98 species which are of importance. All the stone fruits are included in this group. Three subgenera namely: Amygdalus (peaches and almonds), Prunophora (plums and apricots) and Cerasus (cherries) under Prunus are universally accepted. Major species of importance are Prunus persica, Prunus...
Causes of decline of critically endangered hangul deer in Dachigam National Park, Kashmir (India): A review
December 2011
This review presents information on declining population trends of critically endangered red deer of Kashmir commonly known as hangul (Cervus elaphus hanglu) belonging to the family Cervidae. It is restricted to Dachigam National Park (DNP) of Jammu and Kashmir State in India and is on the verge of extinction. The causes of decline of its population are both physical and biological factors. The physical...
Forest conservation and livelihood conflict in REDD: A case study from the corridor Ankeniheny Zahamena REDD project, Madagascar
November 2011
To be effective, the reducing emission from deforestation and forest degradation (REDD) initiatives must be driven not only by their potential climate and other environmental benefits, but also by the consideration of how they will affect rural communities. This study focused on the socioeconomic dimensions of the REDD mechanism and explored the extent to which the management system of a carbon sequestered...
Attitudes and perceptions as threats to wildlife conservation in the Bakossi area, South West Cameroon
November 2011
Knowing the attitudes and perception of people towards wildlife conservation is a primordial factor and strategy. The success of wildlife conservation depends on the attitudes of the local population, their perception of concepts and strategies put forth by conservation organizations. Although people in the area equate wildlife conservation as refusal to access rights to bush meat, they are conscious of the...
Oak gall wasps (Hymenoptera: Cynipidae) species composition using diversity and similarity indexes across different locations of Oak forest, West-Azerbaijan, Iran
November 2011
Patterns of the distribution of species diversity are the result of ecological, physical and historical factors. Beta diversity is an important property of ecosystems because it provides information about the partitioning of habitats by species. The objectives of this study were to determine the level of oak gall wasps diversity present in five different locations and to study the similarity among these...
Impact of tropical forest degradation on nymphalid butterflies: A case study in Chandubi tropical forest, Assam, India
November 2011
Study examines the hypothesis, whether the diversity of Nymphalid butterflies in tropical primary forest of Chandubi is associated with vegetation structure and canopy openness and that this relationship differs between butterfly taxa in relation to phylogenetic differences in light and shade preferences. Study has emphasized whether the increasing diversity of butterflies in degraded tropical forest is...
Diversity and distribution of ladybird beetles in District Dir Lower, Pakistan
November 2011
This paper communicates the diversity, distribution and host importance of ladybird beetles collected from District Dir Lower, Pakistan. A survey was conducted in the District Dir Lower over a period of two years. Specimens of coccinellid beetles were collected from Maidan, Jandool, Timergara and Adenzai. Identification of these beetles showed that 14 different species belonging to sub-families...
Conservation effectiveness of protected areas in Mexico: Effects on medium and large mammals at local and regional scales
October 2011
Several threats are affecting biodiversity at both spatial and temporal scales. Protected areas (PAs) are one of the most popular conservation tools to protect biodiversity from those threats. However, PAs are often isolated by anthropogenic barriers and are not effective maintaining biodiversity and then it is necessary to assess the effectiveness of current PAs. Here we analyzed the representativeness of...
Status of snow leopard Uncia uncia and its conservation in the tumor peak natural reserve in Xinjiang, China
October 2011
Field surveys were carried out by the International Snow Leopard project team to estimate snow leopard abundance and density in the Tumor Peak Natural Reserve in Xinjiang Uyghur Autonomous Region (Xinjiang), China. A total of 48 linear transects with a total length of 48.92 km were surveyed at 5 potential distribution sites during October to November 2004, and we observed 101 snow leopard signs to try to...
Ecology and biodiversity in Pangong Tso (lake) and its inlet stream in Ladakh, India
October 2011
Pangong Tso is a land locked lake situated in eastern part of Ladakh (Indian Tibet), at an altitude of 4,266 m A.S.L. and remains frozen for about three months during winter. There is no outlet to the lake and loss of water is only through evapotranspiration. The lake was found to be highly alkaline (pH ≤ 9.0) with high conductivity (≥ 1639 mS) and nutrients (NH4-N ≥ 54 mg/L; NO3-N ≥ 299...
Study of genetic relationships between wild and domesticated grapevine in the north of Morocco
October 2011
In Morocco, knowledge about the wild grapevines has been absent. Until now, no accurate inventory was available and the characterization of this wild grapevine group was lacking. In the present work, prospecting conducted in the North of Morocco (Rif) permitted us to inventory 18 sites with wild grapevines (10 to 50 km away from each other). A total of 168 individuals have been found. This material was...
Sustainable agriculture productivity through restoration of tank irrigation system with stakeholder decision : Case study in rural tank eco system
October 2011
The tank irrigation system have provided support for the livelihood of the rural communities and have to be restored and conserved as an economic assets, especially for the poor and marginalized communities in the under developed areas. The tank irrigation system has a special significance to the marginal and small-scale farmers who make a very large number essentially depending on...
Diversity of macrofungi at the University of Dar es Salaam Mlimani main campus in Tanzania
October 2011
Macrofungi play important roles in nutrient cycling, forestry, pharmacology industry, production of cultivated fungi in the food industry, as well as their vital role in biodegradation and biodeterioration. Information about the diversity, community organization, and variations in time and space of macrofungi community belonging to the Basidiomycota and Ascomycota at the University of Dar es...
Pollinator biodiversity in Uganda and in Sub-Sahara Africa: Landscape and habitat management strategies for its conservation
October 2011
Previous pollinator faunistic surveys conducted in 26 different sites indicated that farmlands of central Uganda supported more than 650 bee species, 330 butterfly species and 57 fly species. Most crop species grown in Uganda are pollinator-dependents. There is also a high dependency of rural communities on pollination services for their livelihoods and incomes. The annual economic value attributable to...
Use of ethnobotanical criteria for conservation assessment of plants used for respiratory diseases in Lake Victoria region, Tanzania
October 2011
The focus of the paper was to use an ethnobotanical approach to identify for conservation, priority medicinal plants used for respiratory diseases in Lake Victoria region of Tanzania. Recent incidences of respiratory diseases profoundly affect plant diversity as they lead to selective consumerism of plant species. Trend of respiratory diseases in Lake Victoria region is alarming due...
A comparison of terrestrial bird community structure in the undisturbed and disturbed areas of the Abijata Shalla lakes national park, Ethiopia
September 2011
A study to determine the terrestrial bird community structures in the undisturbed and disturbed areas of the Abijata Sahlla Lakes National Park was conducted during the wet and dry seasons. A representative area of 57% was randomly sampled in each of the undisturbed and disturbed habitats. A transect line of 1 or less km at a distance of 50 to 100 m on one side of the line was used to count birds. Counting...
Vegetation dynamics of an old-growth lowland tropical rainforest in North-east India: Species composition and stand heterogeneity
September 2011
The North East India forms an important hotspot of biodiversity by virtue of its unique biogeographical situation and healthier growing conditions. The region has an area of 13302.80 km2 under the protected area network (PAN), which is not yet systematically inventorised. In this paper, we investigated Namdapha National Park that comprises 14% of the total PAN of the region and forms the largest remnants of...
Biodiversity survey of trees and ornamental plants in Karunya University, Coimbatore, India
September 2011
Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or on an entire planet. Biodiversity is not consistent across the Earth. Western Ghats, older than the Himalayas, is one of the 34 global hotspots of biodiversity – flora, fauna, landscape and ethnicity. Western Ghats, anarrow 1,700 km strip that stretches from the mouth of Tapti in Dhule district of...
First record of mugger crocodile Crocodylus palustris (Lesson, 1831) from the Rajaji National Park, North India
September 2011
First record of mugger crocodile Crocodylus palustris (Lesson, 1831) from Rajaji National Park, north India, is described and illustrated. This is the first record of the order Crocodilia and genus Crocodylus for Rajaji National Park. On 8th and 9th of December 2010, two mugger crocodiles were observed basking in sandy bed of Ganges near to Bhimgora barrage (Haridwar city) on the very edge of...
Essential sesquiterpene oil(s) in Khus-Khus (Vetiveria zizanoides Nash.) on roots diameter circumference positions for commercial usage
September 2011
The culturing Khus in controled glasshouse condition in sand cultures for maximum essential monoterpene oil(s) was found (0.21%) in young developed middle position circumferences of roots. At middle position of leaf, net photosynthetic and contents of chlorophyll were affected. The maximum peroxidase activity was obtained at middle position of leaf and roots circumferances ...
The effects of soil characteristics and physiographic factors on the establishment and distribution of plant species in mountain forests (Case study: Asalouyeh, South of Iran)
September 2011
The objective of this study was to assess the effects of soil characteristics and physiographic factors (slope, aspect and elevation) on vegetation distribution. We ultimately ascertained the most important characteristics on the establishment, regeneration and distribution of species in Asalouyeh mountain forests south of Iran. Vegetation sampling was performed using a randomized-systematic method and plot...
The management of alien species in India
September 2011
Alien species, after becoming locally dominant, invade natural communities and become Invasive Alien Species (IAS). The impacts of exotic plants on community structure and ecosystem processes are poorly understood in India. A total 173 species in 117 genera are invasive alien plants, representing 1 % of the Indian flora. The agricultural economy in India is vulnerable to threat from exotic pests/ diseases. In...
Distribution patterns of cultivated watermelon forms in Zimbabwe using DIVA-GIS
September 2011
Identification of potential areas and regions for collection of watermelon germplasm is pivotal for better utilization of the available diversity. DIVA-GIS were used on all watermelon collections in the National Genebank of Zimbabwe to explore the pattern of distribution of two forms of watermelons; sweet watermelon (Citrullus lanatus var. lanatus) and cow-melon (Citrullus...
A Costa Rican bacterial spiroplasma biodiversity survey in tabanid flies reveals new serogroups and extends United States ranges
August 2011
Spiroplasmas are ubiquitous bacteria found in association with a wide range of plants and arthropods, where they can cause economically important diseases. To better understand Spiroplasma biodiversity and biogeography, a single host family (tabanid flies) was examined in detail. The current report describes spiroplasma carriage and biodiversity from tabanid flies captured at three sites in the Costa Rican...
Impact of interspecific competition by compatriot aquatic weeds on water hyacinth Eichhornia crassipes (Martius) Solms growth and development in the Kagera River
August 2011
The phenotype of a plant is strongly influenced by the presence of neighbouring plants often resulting into change in growth and development. We have demonstrated to our knowledge for the first time, the influence of three aquatic weed species (Commelina sp., Justicia sp. and Vossia cupsidata) on growth and development of water hyacinth (Eichhornia crassipes). We found...
Diversity and distribution of amphibians in the Kakum National Park and its surroundings
August 2011
This study investigated amphibian distribution and diversity in Kakum National Park and its surrounding communities. Sampling was carried out in lowland swampy areas and upland zones of both locations; thus totalling four main habitat types as areas of survey. A total of 1434 specimens belonging to four Families comprising 12 species of anurans were recorded. The 12 species were irregularly distributed in the four...
Forewarning models of the insects of paddy crop
August 2011
The models for forewarning about the infestation of green leafhopper Nephotettix virescens Dist (Cicadellidae, Hemiptera), plant hopper Cofana spectra Dist (Delphacidae, Hemiptera), C. yasumatsui Young (Kolla mimica, Hemiptera), rice gundhi bug Leptocoriza acuta Thunberg (Alydidae, Hemiptera) and yellow stem borer Scirpophaga incertulas Walker (Pyralidae, Lepidoptera)...
Correlation and path coefficient analysis of yield and its component in faba bean (Vicia faba L.) germplasm
August 2011
Due to the lack of information on genetic diversity in Ethiopian faba bean (Vicia faba L.) germplasm and the need to study association among seed yield and related components, fifteen genotypes were grown at Sinana Agricultural Research Center and on two farmers’ field at Sinja and Adaba, south Eastern Ethiopia in 2007/08 cropping season. At Sinana, number of pods/plants, number of seeds/pod...
Flying with the enemy: An endoparasitic fly larva in Brazilian bumblebees
August 2011
In the south of Brazil some species of bumblebees are disappearing, such as: Bombus bellicosus in Paraná State. Insecticides and other pesticides and global warming are possible candidates for such phenomena, but none of them has been deeply studied. In forest fragments at southeast of Brazil (Sorocaba City, São Paulo State) tachinid fly larvae were found inside the abdomen of foraging...
Proximate and mineral composition of four edible mushroom species from South India
August 2011
Results of proximate analysis of four edible species of mushroom collected from different parts of IIT Chennai, Tamil Nadu, India., indicate that Auricularia polytricha was a very good source of crude protein (37%), crude fiber (21.97%), ash (6.87%), calcium (607 mg/g dry weight) and manganese (136 mg/kg dry weight (dw). Macrolepiota rhodocus was the richest in carbohydrate (48%) and magnesium (250...
Role of participatory research on natural resource management: A case of Karnali Watershed Area, Nepal
July 2011
This paper discusses the development trends of participatory research in Nepal with reference to natural resource management, taking example from Karnali watershed area. The issues discussed in this paper clearly indicate that there is urgent need to promote the participatory action research on environment and development for the proper links between population, development,...
Diversity of parasites from Middle Paraná system freshwater fishes, Argentina
July 2011
Investigation into taxonomy at the local and regional level is essential. It is necessary to make an inventory of the local biodiversity to enhance the efforts of the region with respect to scientific research. Argentina is one of the most diverse countries in the world and little is known about the diversity of invertebrate species of ichthyoparasites of inland aquatic ecosystems. The Middle Paraná...
Mass of Prunus africana stem barks on the Mount Cameroon forest
July 2011
Prunus africana is a species of the Rosaceae family, known under its trade/pilot name aspygeum or African cherry. The bark is the major source of an extract used to treat benign prostatic hyperplasia, an increasingly common health problem in older men in the western world. A study for estimating the mass of the stem barks of P. africana was carried out in December, 2011 on...
Spatial correlates of land-use changes in the Maasai-Steppe of Tanzania: Implications for conservation and environmental planning
July 2011
Spatially explicit models are becoming increasingly important tools for simulating land-use change. In this study, we formulated and tested models that incorporated spatial correlates of agricultural expansion and used them to predict local- and landscape-scale patterns of agricultural land-use change and its implications in the Maasai-Steppe of Northern Tanzania. We evaluated the relationship between...
Deforestation and endangered indigenous tree species in South-West Nigeria
July 2011
Literature is replete with evidence of deforestation of the tropical forest. In Nigeria, studies on deforestation also abound. This report, which is built on the government forests in South West Nigeria attempts to provide a basic linkage between deforestation and endangered indigenous tree species. Endangered indigenous forest trees in South West Nigeria are further threatened by lack of commitment and...
Diversity and status of ethno-medicinal plants of Almora district in Uttarakhand, India
July 2011
The present contribution relates to the diversity of the medicinal flora of the world famous Almora district of the Central Himalaya in the state of Uttarakhand (India). The paper describes distribution and local/traditional uses of the 188 medicinal flora representing 80 families, in which 35 species were trees, 112 were herbs, 35 were shrubs and 06 were climbers. These identify the plants that need...
Page 12 of 15, showing 50 records out of 705 total, starting on record 551, ending on 600
Advertisement
Advertisement
