نتایج جستجو برای: urogymnus africanus

تعداد نتایج: 637  

2017
Jack C. Schuster Pedro Reyes-Castillo

The larvae of Didimus africanus (Percheron), D. haroldi Kuwert, D. alvarodoi (?) Corella, D. parastictus (Imhoff), D. nachtigali Kuwert, Erionomus planiceps (Esch.), E. pilosus Arrow, Taeniocerus pygmaeus (Kaup) and Comacupes basalis (Smith) are described for the first time. Larvae of Leptaulax bicolor (F.), L. dentatus (F.) and Aceraius grandis (Burm.) are redescribed and compared with previou...

Journal: :Applied and environmental microbiology 2006
Nicole B Lopanik Nancy M Targett Niels Lindquist

"Candidatus Endobugula sertula," the uncultured microbial symbiont of the bryozoan Bugula neritina, produces ecologically and biomedically important polyketide metabolites called bryostatins. We isolated two gene fragments from B. neritina larvae that have high levels of similarity to polyketide synthase genes. These gene fragments are clearly associated with the symbiont and not with the host.

2013
W. Louis Phipps Stephen G. Willis Kerri Wolter Vinny Naidoo

Vultures in the Gyps genus are declining globally. Multiple threats related to human activity have caused widespread declines of vulture populations in Africa, especially outside protected areas. Addressing such threats requires the estimation of foraging ranges yet such estimates are lacking, even for widespread (but declining) species such as the African white-backed vulture (Gyps africanus)....

Journal: :The Onderstepoort journal of veterinary research 1988
I M Stutterheim J D Bezuidenhout E G Elliott

The feeding methods, activities and behaviour of red-billed and yellow-billed oxpeckers in captivity were compared. Both species were found to be very similar with regard to feeding. The differences observed were a greater dependence on ectoparasites such as flies and larger ticks (Amblyomma hebraeum) and a higher food intake for the yellow-billed oxpecker. These differences are the result of t...

Journal: :Acta Crystallographica Section A Foundations and Advances 2017

در مطالعه فون کنه‌های زیان‌آور درختان پهن برگ و درختچه‌های زینتی که در سال‌های ۱۳۸۷ و ۱۳۸۸ در فضای سبز مشهد انجام گرفت، نمونه‌هایی از چهار گونه کنه از خانواده تترانیکیده، متعلق به 3 جنس به نام‌های: Oligonychus mangiferus (Rahman and Sapra, 1940)، Oligonychus yothersi (Mc Gregor 1914)، Schizotetranychus hindustanicus (Hirst, 1924)و Eutetranychus africanus (Tuker, 1926) شناسایی گردید که برای فون ...

Journal: :Journal of human evolution 2012
David S Strait Gerhard W Weber Paul Constantino Peter W Lucas Brian G Richmond Mark A Spencer Paul C Dechow Callum F Ross Ian R Grosse Barth W Wright Bernard A Wood Qian Wang Craig Byron Dennis E Slice

Recent studies of dental microwear and craniofacial mechanics have yielded contradictory interpretations regarding the feeding ecology and adaptations of Australopithecus africanus. As part of this debate, the methods used in the mechanical studies have been criticized. In particular, it has been claimed that finite element analysis has been poorly applied to this research question. This paper ...

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