منابع مشابه
Tough spiders
Spider graphs are the intersection graphs of subtrees of subdivisions of stars. Thus, spider graphs are chordal graphs that form a common superclass of interval and split graphs. Motivated by previous results on the existence of Hamilton cycles in interval, split and chordal graphs, we show that every 3/2-tough spider graph is hamiltonian. The obtained bound is best possible since there are (3/...
متن کاملPeacock spiders
How has the environment at the Champalimaud Neuroscience Programme influenced your work? We develop and use high resolution, dynamic, quantitative readouts of behavior. This is a real strength at the institute and strongly resonates with me due to the approach I developed while working on the cell biology of trachea morphogenesis. For me, biology is about regulating dynamic processes and if you...
متن کاملSocial spiders
References 1. Buss, L.W. (1987). The Evolution of Individuality (Princeton, New Jersey: Princeton University Press). 2. Bonner, J.T. (1967). The Cellular Slime Molds, Second Edition (Princeton, New Jersey: Princeton University Press). 3. Buss, L.W. (1982). Somatic cell parasitism and the evolution of somatic tissue compatibility. Proc. Natl. Acad. Sci. USA 79, 5337–5341. 4. Kessin, R.H. (2001)....
متن کاملDesiccation resistance reflects patterns of microhabitat choice in a Central American assemblage of wandering spiders.
The lowland rainforest of northeastern Costa Rica harbours an assemblage of large wandering spider species belonging to three habitat subguilds: (1) semi-aquatic, (2) forest ground dwelling and (3) vegetation dwelling. We hypothesized that desiccation resistance should differ among species preferring different microhabitats and the associated microclimate. Desiccation resistance was assessed by...
متن کاملFossil spiders.
Over the last three decades, the fossil record of spiders has increased from being previously biased towards Tertiary ambers and a few dubious earlier records, to one which reveals a much greater diversity in the Mesozoic, with many of the modern families present in that era, and with clearer evidence of the evolutionary history of the group. We here record the history of palaeoarachnology and ...
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ژورنال
عنوان ژورنال: Bulletin of the Entomological Society of America
سال: 1979
ISSN: 0013-8754
DOI: 10.1093/besa/25.3.214