Social Insects

Author: Wolf Engels
Publisher: Springer Science & Business Media
ISBN: 3642744907
Size: 45.64 MB
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Evolution of Castes in Insects l BERNHARD RENSCH The evolution of organisms in the succession of generations has been primarilly achieved through the appearance of new hereditary variants with minor deviations along with the development of ...

Parasites In Social Insects

Author: Paul Schmid-Hempel
Publisher: Princeton University Press
ISBN: 9780691059242
Size: 31.70 MB
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At the same time, this discussion illustrates the major problem for macroparasites
— the problem of how to meet and become transmitted to new hosts. There is
little information on the value of the parameters in eq. (6.6). Hence, it is difficult to
deduce on a priori grounds whether social insects are a favorable or difficult
environment for the epidemiology of macroparasites. From the empirical
evidence of appendix 2. it is at least evident that a variety of macroparasites use
social insects as ...

Caste And Ecology In The Social Insects

Author: George F. Oster
Publisher: Princeton University Press
ISBN: 9780691023618
Size: 57.91 MB
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The guiding proposition of our inquiry is that variations in caste structure and
division of labor reflect differing adaptations on the part of individual species of
social insects. Thus, caste is not just ... an insect society. Viewed from the
surrounding environment the colony can be regarded as a superorganism, a
large and dillnsc ameboid entity whose ingestive apparatus, comprised of the
foraging workers, moves back and forth in circadian pulses over 21 WHY IS
CASH, IMPORTANT? VIII.

Developmental Plasticity And Evolution

Author: Mary Jane West-Eberhard
Publisher: Oxford University Press
ISBN: 9780198028567
Size: 64.86 MB
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In: Proceedings of the 8th International Congress of the International Union for
the Study of Social Insects, J. de Wilde (ed.). Centre for Agricultural Publishing
and Documentation, Wageningen, pp. 220–222. Velthuis, H.H.W. and Sommeijer
, M.J. 1990. A new model for the genetic determination of caste in Melipona. In:
Social Insects and the Environment, G.K. Veeresh, B. Mallik and C.A. Viraktamath
(eds.). Oxford and IBH Publishing, New Delhi, p. 173. Velthuis, H.H.W. and
Sommeijer, ...

The Ecology Of Insect Overwintering

Author: S. R. Leather
Publisher: Cambridge University Press
ISBN: 9780521556705
Size: 13.88 MB
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Overwintering cues for social insects Social insects may overwinter either as
solitary fertilised queens, which found annual colonies (frequently a feature of
more primitive groups) or as colonies, either with or without food. Few
experimental studies have been made of regulation of overwintering in social
insects because of the difficulties of working with whole colonies but the
information that is available, much of which is based on observational work,
suggest that similar environmental ...

Social Insect Populations

Author: M. V. Brian
Publisher: Elsevier
ISBN: 1483266370
Size: 13.30 MB
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CHAPTER 1 1 STRUCTURAL LIMITATIONS Structure and food are the essential
resources that cause intraspecific competition and limit population. Each is
modified by climate and traffic. All social insects need structures to support or
contain nests which shelter them from the environment during sensitive stages of
the life cycle, and many require places in which to shelter from bad seasons, and
special mating structures. A. NEST SITES AND SHELTERs Intrinsic limitations to
nest size ...

Chemical Ecology Of Insects 2

Author: R.T. Carde
Publisher: Springer Science & Business Media
ISBN: 9780412039614
Size: 50.90 MB
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The essentially fixed placement of a social insect colony determines its trophic
and competitive environment, because each colony is one point in an
overdispersed, clumped, or random matrix of conspecific and interspecific nests (
Holldobler and Lumsden, 1980; Levings and Adams, 1984; Levings and
Traniello, 1981). Nestmates must be mobilized cooperatively to harvest food
resources or combat encroachments on territorial borders or nest areas. Foraging
behavior, colony ...