Jumping plant lice of the family Carsidaridae (Hemiptera : Psylloidea) from Cameroon: taxonomic, faunisitic, phenology and host plants

Cameroonian psyllids members of the Carsidaridae family are revised. Six species are recognized within this family including three known species, two newly described species; one species remain undescribed because the material is not sufficient. The newly described species are Carsidara camerunensis sp.n., psyllid of Sterculia tragacantha and Mesohomotoma njinei sp.n., psyllid of Desplatsia dewevrei. Adults […]

Spatial distribution of ulin (Eusideroxylon zwageri Teijsm. & Binnend.) based on slope position and its stand structure in the forest area of tabalong district

Forest resources in Tabalong District has been degraded, proved by the fact that Ulin trees (Eusideroxylon zwageri) are difficult to be found. Ulin is in the status of endangered species, thus it must be protected and under the development efforts. Therefore, it needs information on Ulin spatial distribution based on the slope position and its […]

Effects of physiographic factors and soil properties on distribution of Ferula gummosa Boiss: case study of Karaj Kalarud Region

Ferula gummosa Boiss, belonging to Umbelliferae family, is widely distributed in mountainous regions of Iran, especially Zagros and Alborz Mountains. This species is of great economic importance due to industrial, pharmaceutical, food and forage uses. In the present study, the effect of some ecological factors associated with Ferula gummosa Boiss was investigated in one of […]

Removal of heavy metals (Cr, Cd, Ni and Pb) using fresh water algae (Utricularia tenuissima, Utricularia tenuis & Zygogonium ericetorum) from contaminated water

A study was conducted to check the efficiency of different fresh water algae for removing heavy metals (Cr, Cd, Ni and Pb) from contaminated water. The three most abundant indigenous algal species namely Ulothrix tenuissima, Oscillatoria tenuis and Zygogonium ericetorum were collected from fresh water channels of Parachinar, Pakistan and brought to the laboratory of […]

Resource management of coconut crab (Birgus latro) in liwo island, north maluku of Indonesia

Coconut crab (Birgus latro) has ecological and economical value that only found in the islands which influenced by the Pacific and Indian Ocean currents, including Liwo Island. The research was done to describe a resource management of coconut crab (Birgus latro) in Liwo island according to the distribution and biological analysis of coconut crab. Data […]

Effects of some environmental factors on annual weed shepherd’s purse (Capsella bursa-pastoris (L.) Medik.)

Shepherd’s purse (Capsella bursa-pastoris (L.) Medik.) is an annual weed species with a wide distribution in cereals of East Azarbaijan, Iran. Tow experiments were carried out based on randomised complete block design with four replications in Tabriz, Iran in 2014 to evaluate the effects of salinity and drought stress on shepherd’s purse germination and early […]

The effects of fire on density, diversity and richness of soil seed bank in semi-arid rangelands of central Zagros region, Iran

Soil seed banks can play an important role in vegetation restoration after large scale disturbances, particularly after disturbances (e.g. fire) that create gaps in the vegetation structure. It examined the effect of fire on soil seed bank dynamics of Central Zagros rangelands in semi-arid region of Iran by analysis of seed content in sample layers […]

Study of natural reproduction of Atriplex canescens and it’s role in rageland improvement of Iran (case study: Cheper Ghoyma Rangeland-Gonbad Kavus)

Planting with Atriplex canescens is a common revival methods of rangelands over more than three decades in Iran. It seems that has not been considered to ecological conditions in planting decision making and monitoring the effect of this species on soil and native species after planting. In ths study was investigated the natural reproduction of […]

Morphometric studies of the fresh water turtles from Rawalpindi Islambabad Region of Pakistan

Freshwater turtles are members of order Testudines in class Reptilia and being scavengers, carnivores as well as herbivores, they play a vital role in aquatic ecosystems. Freshwater turtles are facing illegal trade due to their demaned as food, pets and their use in medicines. Various studies in the last two decades have highlighted that their […]

Selenoportax vexillarius from Dhok Pathan, Chakwal District, the Punjab, Pakistan

The fossil material belonging to genus Selenoportax has been described and discussed which was collected from Dhok Pathan, Chakwal district, the Punjab province, Pakistan. The studied material comprises left lower mandibular ramus having p4-m3. The genus Selenoportax basically consists of two species; Selenoportax vexillarius and Selenoportax lydekkeri. Selenoportax is an extinct genus of Boselaphines. Boselaphines […]