Entomology Abstracts

With millions of insect species already identified, and studies revealing more about them every day, Entomology Abstracts provides the only practical means for researchers whose work is affected by these findings to keep up with the field. All recent research reports of direct relevance to entomology are assembled here, with coverage including insects, arachnids, myriapods, onychophorans, and terrestrial isopods. From the most ancient fossilized forms to newly-discovered species, Entomology Abstracts gathers and summarizes all the latest information on millions of insects and insect-like species, for truly global coverage of the field.

Subject Coverage

Major areas of coverage include:

• Systematics
• Phylogeny, Morphology, and Faunistics
• Physiology, Anatomy, and Biochemistry
• Reproduction and Development
• Ecology, Behavior, and Biology
• Genetics and Evolution
• Fossil Forms and Faunas

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Over 256,731 records as of February 2007

Entomology Abstracts

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TI:	Title Optimality modelling and quantitative genetics as alternatives to study the evolution of foraging behaviours in insect herbivores
AU:	Author Carriere, Y; Roitberg, BD
AF:	Author Affiliation Dep. Biol., McGill Univ., 1205 Dr. Penfield Ave., Montreal, PQ H3A 1B1, Canada
SO:	Source EVOL. ECOL., vol. 10, no. 3, pp. 289- 305, 1996
IS:	ISSN 0269-7653
AB:	Abstract Although the evolution of large-scale dispersal has received considerable attention, we know very little about how natural selection influences foraging behaviours in herbivorous insects. Host-selection behaviours and within-habitat movements jointly determine foraging behaviours, since host selection affects the allocation of time spent on a particular host versus moving between these hosts. However, host selection is generally a labile trait, whose expression is influenced by the physiological state of the forager and hence, by characteristics of the habitat. We discuss how the quantitative genetic concepts can be used to study the evolution of such labile behaviours. Since host responses depend on the physiological state of the forager, it is argued that the state of the forager must be explicitly considered when estimating the additive genetic basis of host-selection behaviours. The lability of foraging behaviours increases the difficulty of measuring the fitness consequence of variation in the foraging phenotype in specific habitats. Therefore, it may be difficult to rely exclusively on quantitative genetic methods to test hypotheses about adaptive change in foraging behaviours across different habitats. We provide a novel approach based on optimality modelling to calculate the fitness consequence of variation in the foraging phenotype across different habitats. This method, in conjunction with quantitative genetics, can be used to test hypotheses concerning the evolution of foraging behaviours.
LA:	Language English
SL:	Summary Language English
PY:	Publication Year 1996
PT:	Publication Type Journal Article
DE:	Descriptors Insecta; evolution; foraging behavior; herbivory; models
CL:	Classification D 04003 Modeling, mathematics, computer applications; Z 05156 Techniques; Y 25843 Insects
SF:	Subfile Ecology Abstracts; Entomology Abstracts; Animal Behavior Abstracts
AN:	Accession Number 3939386

The following field codes are found in the records of this database. Here they are listed in alphabetical order by two-letter code.

AB = abstract	LA = Language
AF = Author Affiliation	NT = Notes
AN = Accession Number	NU = Other Numbers
AU = Authors	OT = Original Title
CA = Corporate Author	PB = Publisher
CF = Conference	PT = Publication Type
CL = Classification	PY = Publication Year
DE = Descriptors	SF = Subfile
ED = Editor	SL = Summary Language
ER = Environmental Regime	SO = Source
IB = ISBN	TI = Title
ID = Identifiers	TR = ASFA Input Center Number
IS = ISSN	UD = Update