the systematics, morphology, distribution, biology, economic importance and conservation of the bull shark ( carcharhinus leucas ) in iran are described, the species is illustrated, and a bibliography on this fish in iran is provided.

Distribution, population and reproductive biology of Uca sindensis were studied in a subtropical mangrove of Pohl port in the northern Persian Gulf. Sex ratio, distribution, population structure, handedness (evenness), diameter burrow, breeding season and fecundity were investigated. Ten 0.5 m2 quadrates were randomly sampled during low tide periods from October 2009 to September 2010.A total o...

I aimed to document the online undergraduate course supply in biology to evaluate how well biology educators are serving the diverse and growing population of online students. I documented online biology course offerings in the 2015-2016 academic year at 96 American colleges and universities. I quantified differences in variety, extent, and availability of courses offered by different kinds of ...

Affiliations: 6 Population Biology Laboratory, Biology Division, Indian Institute of Science Education and 7 Research-Pune, Dr. Homi Bhabha Road, Pune, India, 411 008 8 9 Evolutionary Biology Laboratory, Evolutionary and Organismal Biology Unit, Jawaharlal 10 Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, India, 560 064 11 Present Address: Clintus Network Ltd., No. 205/1...

Affiliations: 5 Population Biology Laboratory, Biology Division, Indian Institute of Science Education and 6 Research-Pune, Dr. Homi Bhabha Road, Pune, India, 411 008 7 8 Evolutionary Biology Laboratory, Evolutionary and Organismal Biology Unit, Jawaharlal 9 Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, India, 560 064 10 Present Address: Clintus Network Ltd., No. 205/1 ...

Brachydeutera sturtevanti Wirth is a shore ßy found commonly in a variety of lentic habitats, including ephemeral pools, in the American Southwest and northern Mexico. We conducted Þeld studies and laboratory rearings to elucidate the morphology and trophic ecology of this colonizer species important to newly ßooded habitats such as constructed wetlands. The larvae are generally hyponeustic, su...

While interesting in its own right, linear algebra is also quite useful in a variety of real-world applications, including population biology. A population can be defined as “a group of plants, animals, or other organisms, all of the same species, that live together and reproduce” (Gotelli, 1995). Population biology, then, is the branch of ecology which is concerned with the study of how distin...

the systematics, morphology, distribution, biology, economic importance and conservation of the lamprey of iran are described, the species is illustrated, and a bibliography on this fish in iran is provided. there is one native and endemic species in the caspian sea basin, caspiomyzon wagneri . the genus caspiomyzon is characterised by having 2 dorsal fins, an oral disc narrower than the body, ...

different species of aphids in rapeseed fields of khuzestan province were identified and the dominant ones were determined during 2002-2004 field sampling. base upon the collected data, population fluctuations of rapeseed aphids vs. their natural enemies were assessed. also biology of the aphids, major species was studied under controlled conditions. the results showed that lipaphis erysimi (ka...