—The subfamily Equinae in the Great Plains region of North America underwent a dramatic radiation and subsequent decline as climate changed from warm and humid in the middle Miocene to cooler and more arid conditions during the late Miocene. Here we use ecological niche modeling (ENM), specifically the GARP (Genetic Algorithm using Rule-set Prediction) modeling system, to reconstruct the geogra...

Vegetation structure influences habitat selection for woodland birds and is a key component determining habitat quality. At Scandlaser 2003, and elsewhere, we have demonstrated the application of airborne LiDAR data for organism-habitat modelling. In this paper we review the results of our pilot study which focussed on two species of tits, Great Tit Parus major and Blue Tit Parus caeruleus, in ...

Modelling metapopulation dynamics is a potentially very powerful tool for conservation biologists. In recent years, scientists have broadened the range of variables incorporated into metapopulation modelling from using almost exclusively habitat patch size and isolation, to the inclusion of attributes of the matrix and habitat patch quality. We investigated the influence of habitat patch and ma...

This study developed niche models for the native ranges of Oreochromis andersonii, O. mortimeri, and O. mossambicus, and assessed how much of their range is climatically suitable for the establishment of O. niloticus, and then reviewed the conservation implications for indigenous congenerics as a result of overlap with O. niloticus based on documented congeneric interactions. The predicted pote...

Landscape ecology is a relatively new field of study within the sub-specialty that considers time and space in addition to structure function. contends both configuration (spatial pattern) composition (organisms at macro or micro level) an can change over time. The oral cavity ideal place landscape because variety landscapes, dynamic nature plaque biofilm development, easy access material. This...

The emerging field of mechanistic niche modelling aims to link the functional traits of organisms to their environments to predict survival, reproduction, distribution and abundance. This approach has great potential to increase our understanding of the impacts of environmental change on individuals, populations and communities by providing functional connections between physiological and ecolo...

zygophyllum atriplicoides is one of the most important rangeland plants that often seen as associated species and rarely seen as the dominant species in ranglands rangelands which is very critical for soil  in starting and ending points of each transect. measured soil properties (included gravel, texture, organic matter, lime, ph and electrical conductivity) and physiography (elevation and slop...