the vegetation covering of a region has a direct correlation with climate. so if data is available for vegetation cover, the second variable (climate) can be easily predicted and in reverse. the dominant species in a region are indication of its climatic conditions and vice versa. accordingly, this is of significance in the science of historical botany. fortunately, from the first millennium ad...

Wildfires are one of the major disturbances in the dynamics of forests and shrublands. However, little is known about their effects on insect communities that contribute to faunal biodiversity and play key roles in the ecosystem's dynamics. An intense and widespread fire occurred in 1999 in the Nahuel Huapi National Park in the Andean forest in northern Patagonia, Argentina. This fire affected ...

This study aimed to identify the most important physical variables affecting the distribution of four range plants species (Tamarix aphylla, Calligonum comosum, Prosopis spicigera and Salsola rigida) habitats and to prepare potential habitat map of the species using Maximum Entropy (MaxEnt) method in rangelands of Jiroft city, Kerman province, located in SE Iran. To this end, sampling of vegeta...

Common snook, Centropomus undecimalis, (Perciformes: Centropomidae) are valuable euryhaline fi shes that inhabit tropical and subtropical estuarine systems of the western Atlantic. They are abundant off the east coast of Florida from Cape Canaveral southward around the peninsula to Cedar Key off the west coast. They also inhabit waters off Galveston, Texas, south to Rio de Janeiro, Brazil (Gilm...

The phenotype of adults can be strongly influenced by the environmental conditions experienced during development. Consequently, variation in habitat quality across space and through time also leads to differences in the phenotypes of adults. This could create carry-over effects where differences in the natal habitat quality of colonizers influence population dynamics in new habitats. We tested...

Adaptation to novel conditions beyond current range boundaries requires the presence of suitable sites within dispersal range, but may be impeded when emigrants encounter poor habitat and sharply different selection pressures. We investigated fine-scale spatial heterogeneity in ecological dynamics and selection at a local population boundary of the annual plant Gilia tricolor. In two years, we ...

A population of praying mantids Mantis religiosa L. was studied in a submontane habitat near Vicenza in Northern Italy. Sixtythree mantids were observed and studied in the field with the mark and recapture method to obtain ecological information about the coloration patterns, habitat preferences and strategies of this species. Additionally, a population of mantids was housed in artificial condi...

Patchy distributions of organisms and environmental conditions are characteristic traits of aquatic environments. Yet biological and physical measurements are often averaged over large spatial scales when used in environmental models. From a fish's perspective, local rather than spatially averaged conditions determine available habitat. We found that a horizontal cell size of 40 m preserved env...

Anchor Environmental, L.L.C. and The Berger Partnership are assisting the City of Mercer Island in Master Planning activities for Luther Burbank Park in Mercer Island, Washington. In the past, shoreline conditions have been evaluated for the purpose of visioning park improvements (Reid Middleton 2002) and addressing shoreline erosion (Parametrix 1991). However, the park’s shoreline has not been...

background : cockroaches are found as the most common urban pests of tropical countries, prompting economic and serious health risk problem for humans by carrying microbes and allergens, acting as vector for various patho­gens of diseases. the present study was conducted from april 2013 to march 2014 in various human dwelling local­ities of urban area of district lahore, pakistan. methods : coc...