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- Title
Sex-Specific Interactions of Microbial Symbioses on Cricket Dietary Selection.
- Authors
Schmid, Ryan B.; Lehman, R. Michael; Lundgren, Jonathan G.
- Abstract
The nutrients found in prey and nonprey foods, and relative digestibility of these foods, has a major influence on diet selection by omnivorous insects. Many insects have developed symbiotic relationships with gut bacteria to help with extracting nutrition from nonprey diets. Gryllus pennsylvanicus (Burmeister) (Orthoptera: Gryllidae) was assigned to one of two treatment groups, antibiotic-treated and nonantibiotic-treated, and consumption of seeds (nonprey) and eggs (prey) were measured. Male crickets administered antibiotics consumed more seeds and greater seed weight, while antibiotic-fed female crickets consumed fewer seeds and less seed weight, relative to the untreated male and female crickets, respectively. Both male and female antibiotic-treated crickets consumed similar weight of eggs as nonantibiotic-treated male and female crickets, respectively. These results provide evidence that gut symbionts influence diet selection of male and female G. pennsylvanicus differently. This sex-specific dietary selection may be because of the fact that male and female crickets have different nutritional requirements.
- Subjects
SYMBIOSIS; CRICKETS (Insect); GRYLLUS; EPHESTIA; MEDITERRANEAN flour moth
- Publication
Environmental Entomology, 2014, Vol 43, Issue 4, p896
- ISSN
0046-225X
- Publication type
Article
- DOI
10.1603/EN13311