Search Results for : species

Comparison of butterfly diversity in natural and regenerating forest in a biodiversity conservation site at maragamuwa, Sri Lanka

Knowledge of species composition and diversity of butterflies offers great benefits for nature conservation and environmental monitoring. Butterfly species richness and diversity were studied at a biodiversity conservation site at Maragamuwa, Sri Lanka from July 2009 to February 2010 using the fixed distance line transect method. A total of 4968 butterflies belonging to the super […]

Diversity of cave macro-invertebrates in mighty cave, tagoloan, lanao del norte, Philippines

Macro-invertebrates help maintain the stability of the wide niches of faunal assemblage of caves. This study was conducted to determine the diversity and relative abundance of macro-invertebrates in the recently-explored Mighty Cave in Tagoloan, Lanao del Norte. Sampling was conducted using hand-searching, direct counting and pitfall trap methods in four cave zones. Ten species of […]

Predation potential of foliage spiders and estimates of utilization curve, niche breadth and overlap in cotton filed from Punjab, Pakistan

Production of cotton is restricted by pest infestation causing deterioration in lint quality. Spiders being generalist predators regulate insect populations. Bio diversity and relative abundance of spiders as predator as well as feeding niches of nine co existing spider species in cotton were computed and compared for the niche breadth; niche and specific overlaps. A […]

Early growth stages structure and distribution of Pericopsis elata (Harms) van Meeuven in a logging concession of South – East Cameroon

Pericopsis elata (Harms) van Meeuwen is a tropical Africa’s timber of high economic value. In many countries its low natural regeneration rate does not favor the replacement of harvested populations, thus CITES and IUCN recommended a total protection of the species. This survey aimed to characterize the early growth stages and natural regeneration of P. […]

Comparison of growth forms and life forms of rangeland plants under different methods of rangeland management (case study: rangelands around Bojnourd city)

Planning and optimal management of rangelands is important to achieve to vegetation changes in enclosure and enclosure rangelands. In this study due to the lack of sufficient research was compared the effect of each of the four methods of rangeland management on the plant composition. The study area located in the rangelands around the Bojnourd […]

An investigation into the effect of different levels of stockosorb on the establishment and vegetative characteristics of Tamarix aphylla and Eucaliptus camadulensis seedlings in a light-textured (sandy) soils

This experiment was done to compare the effect of different levels of superabsorbent on the establishment and characteristics of Tamarix aphylla and Eucaliptus camadulensis seedlings in the Agricultural and Natural Resource Research Center of Sistan. The experiments were conducted in light-textured soil. The investigated treatments included: The main factor including irrigation treatment at two water […]

The evaluation of cool-season oilseed crops for yield and adaptation in texas: an approach for selection of efficient biofuel feedstock

Expansion of the biofuel industry will require identification of suitable feedstock for particular geographic regions and optimization of production capacity by enhancing research-based management practices. To identify potential biofuel feedstocks, numerous cool-season oil-seed crops were evaluated for their yield potential and quality in Texas; forty-five genotypes of four winter and spring-type oilseed crops were evaluated […]