Author: Joseph Wallace
Publisher: Ace Books
ISBN: 0425277186
Size: 31.56 MB
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20 years ago, venomous parasitic wasps known as thieves staged a massive, apocalyptic attack on humans, pushing them to the brink of extinction.


Author: Sean O'Kane
Publisher: Cambridge House Publishing Limited
ISBN: 9781908252081
Size: 45.82 MB
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The Earth Dwellers

Author: Erich Hoyt
Publisher: Simon and Schuster
ISBN: 0684830450
Size: 42.96 MB
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Explores the world of ants in a Costa Rican nature reserve in a study that is told from the ant's perspective, and profiles such ants as the leafcutter scout and swarm-raider male

The Behavioural Ecology Of Parasites

Author: E. E. Lewis
Publisher: CABI
ISBN: 9780851997544
Size: 15.97 MB
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The predation hypothesis is unlikely to be a complete explanation, since the ants
in the various phylogenetic lines in which slave makers occur are not strongly
predatory and do not attack other ant colonies as a major component of their
foraging strategies (but see Topoff, 1991, for a possible exception). None the less
, opportunistic brood predation as a result of territorial interactions is relatively
common in these groups (Wilson, 1975b, Alloway, 1980; Stuart and Alloway,
1982, 1983).

Sensory Systems Of Arthropods

Author: Konrad Wiese
Publisher: Birkhauser
ISBN: 9783764327958
Size: 21.20 MB
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of hierarchical relations among foragers of a mixed colony of F. sanguinea
suggested a higher hierarchical status for the slavemakers (Harkiv, 1985). But in
our experiments we chose mainly more active, highly mobile ants. Individual
labeling of these ants and subsequent observation of their behaviour in the arena
did not reveal significant differences in their hierarchical status. This suggests
that, in mixed groups, the observed preferences in trophollaxis and antennal
contacts are ...

Proceedings Of The Royal Society Of London

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Table 3. Influence of aggressiveness of population origin on host colonies (
Leptotlzorax longispinosus workers from Vermont and New York populations
attacked slave-makers during raids more frequently. As a result of this aggressive
behaviour a higher proportion of Pratomognat/tux americanus workers were
killed or heavily injured during raids involving host colonies from Vermont and
New York (values are given as meanzl: s.e.m.).) \Nest Virginia New Ybrk Vermont
host host host ...


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Thus, the slave-makers are more analagous to a "pursuing" predator than to a "
searching" predator, in Mac- Arthur and Pianka's (1966) terminology. We should
therefore expect some kind of specialization: either macrohabitat or microhabitat
niche breadths, or both should be narrow if efficiency of colony capture is
maximized. Specialization is unlikely to be based on separate slave species
because several enslaved species such as Formica fusca are known from nearly
all ...

Les Insectes Sociaux

Author: International Union for the Study of Social Insects. Congress
ISBN: 9782867070112
Size: 74.48 MB
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In the Formicinae, species of the Formica sanguinea group are facultative
slavemakers and those of the genera Polyergus and Rossomyrmex, obligate
slavemakers. We tested three hypotheses: (1) The more frequent slavery is in a
species, the higher the proportion of slaves, and thus (2) the slaves should
feature as an extra caste within the nest of the slavemaker. (3) Those formicine
slavemakers that virtually always have slaves, are obligate slavemakers. In FJk
Island National Park ...

How Insects Communicate

Author: Dorothy Hinshaw Patent
Size: 17.13 MB
Format: PDF
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The Slavemakers One of the most interesting developments in ant evolution is
that of the slavemaker ants. These species raid the nests of other ants and make
off with the pupae. When the adults of the slave species emerge from the pupae,
they accept the slavemakers as nest mates and work as hard for them as they
would for their own kind. Some slavemakers have become so completely
specialized as raiders that they are totally dependent on the slaves for their
everyday needs.

Social Insects And The Environment

Author: International Union for the Study of Social Insects. Congress
Size: 76.94 MB
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The eight most significant differences between parasite and closest free-l1v1ng
relative. enlarged head, while slavemaker workers have enlarged eyes and
shortened antennae. There 1s no obvious difference between different kinds of
parasitic queens + except that slavemaker queens + have large eyes (as + their
workers). The adaptive + significance of small size 1n queens 1s obvious (no
extra + resources for Independent nest founding) as are the short + antennae In
slavemaker ...