Species richness and range size are key features of biogeographic and macroecological analyses, which can yield a first assessment tool to define conservation priorities. Here we combined both features in a simultaneous analysis, based on range-diversity plots, to identify sets of rich-rare (high species richness with restricted ranges) and poor-rare cells (low species richness with restricted ...

A taxonomic survey was carried out to assess the diversity of plant genetic resources in the Horticultural farm of Bangladesh Agricultural University, Mymensingh. The data were collected during April 2004 to March 2005. A total of 25328 (including unidentified plant species) species were recorded in which trees, shrubs, herbs, climbers and woody grasses were 51.56, 27.60, 7.81, 10.41, and 2.61%...

Truffles are the most delicious, rare and most expensive edible fungi in the world. Interest on truffles has continuously grown in Iran during the past two decades. The oldest data on Iranian truffles were reported by Chatin who proposed the names Terfezia aphroditis Chatin and T. hanotauxii Chatin for samples collected in Iran (Chatin 1897, Esfandiari & Petrak 1950).During the last 70 years, s...

Niche differentiation has been proposed as an explanation for rarity in species assemblages. To test this hypothesis requires quantifying the ecological similarity of species. This similarity can potentially be estimated by using phylogenetic relatedness. In this study, we predicted that if niche differentiation does explain the co-occurrence of rare and common species, then rare species should...

The Northwest Forest Plan in the Pacific Northwest, United States includes directives for survey and site protection of hundreds of rare species across many taxonomic classes. To help direct survey activities, prioritize sites, and stand conditions for conservation of these species, I developed Bayesian belief network (BBN) models of habitat relationships and multiple stressors predicting prese...

the opportunistic mould aspergillus is a ubiquitous fungus. diseases caused by aspergillus species are most commonly caused by aspergillus fumigatus. the spectrum of disease caused by aspergillus is dependent on the health of the immune system. the ranges of illnesses individuals acquire are aspergilloma, allergic bronchopulmonary aspergillosis, invasive aspergillosis, sinusitis, otomycosis, oc...