Abstract Since the early 1990s, aerial insectivorous birds have shown serious population declines in North America, but it is not clear if factors common to all species within this guild account for these declines. Among sympatric swallows, trends differ, and may be due differences ecology operating throughout annual cycle. Although feed on insects, prey taxa can differ tremendously their “aero...

The phenotypic variation and its distribution among species, morphotypes, within populations was estimated in 71 pertaining to 15 morphotypes of three domesticated species Capsicum from Mexico. Collections were made the states Sinaloa, Nayarit, Oaxaca, Tabasco, Yucatán two agroecosystems: Backyard-garden monoculture. Fifteen characteristics analyzed through one-way variance analysis multivariat...

Four paddy fields in Guilan province in the north of Iran seasonally were sampled from April 2008 to January 2009. Twenty-two morphospecies belonging to three families of the heterocystous blue-green algae were identified. Fourteen species and one variety of these taxa are new record for Iran. Among the families Nostocaceae with six genera and 16 species showed the highest species richness.

Six species of the genus Amanita are reported from Iran. Among them A. aspera, A. caesarea and A. crocea are new members for Iranian fungus flora. Three previously reported species viz. A. battarae, A. ceciliae and A. rubescens var. rubescens are studied in details. All species areredescribed and illustrated with microphotographs and drawings.