New PDF release: Cockroaches: Ecology, Behavior, and Natural History

By William J. Bell

The cockroach is actually an evolutionary ask yourself. This definitive quantity presents an entire evaluate of suborder Blattaria, highlighting the variety of those outstanding bugs of their typical environments. starting with a foreword by means of E. O. Wilson, the booklet explores the interesting traditional heritage and behaviour of cockroaches, describing their numerous colours, sizes, and shapes, in addition to how they movement on land, in water, and during the air. as well as habitat use, nutrition, replica, and behaviour, Cockroaches covers features of cockroach biology, corresponding to the connection among cockroaches and microbes, termites as social cockroaches, and the ecological effect of the suborder.

With over a hundred illustrations, an elevated thesaurus, and a useful set of references, this paintings is destined to turn into the vintage ebook at the Blattaria. scholars and learn entomologists can mine every one bankruptcy for brand spanking new principles, new views, and new instructions for destiny research.


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Additional resources for Cockroaches: Ecology, Behavior, and Natural History

Example text

As discussed above, the possession of fullsized wings is not always a reliable index of flight ability, and the location of diurnal shelter is only a partial indication of cockroach habitat use. Although it is safe to assume that cockroaches attracted to light traps have some degree of flight ability, the traps collect only night-active species that are attracted to light, and the ecological associations of these remain a mystery. Males of Neolaxta, for example, are very rarely seen in the field, but can be collected in considerable numbers from light traps (Monteith, in Roth, 1987a).

Paratemnopteryx kookabinnensis and Para. weinsteini are associated with bats (Slaney, 2001), yet both show eye and wing reduction. Heterogeneity in these characters may occur for a variety of reasons. , some losses are plesiomorphic traits) (Humphreys, 2000a). Such is likely the case for the two species of Paratemnopteryx mentioned above; most species in the genus have reduced eyes, lack pulvilli, and are apparently “pre-adapted” for cave dwelling (Roth, 1990b). Species also may be at different stages of adaptation to the underground environment (Peck, 1998).

As pointed out by Heinrich (2001), by that measure they can run four times faster than a cheetah. Other studied cockroaches are slower and less efficient. The maximum speed for Blaberus discoidalis, for example, is less than half of that of P. americana. The former is a more awkward runner, with a great deal of wasted motion (Full and Tu, 1991). Speed is known to vary with temperature (Blab. discoidalis), substrate type, sex, and developmental stage (B. germanica) (Wille, 1920; Full and Tullis, 1990).

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