Egg-hatch phenology and intraguild predation between two mantid species

Relative timing of egg hatch between two co-occurring, congeneric mantids, Tenodera angustipennis and T. sinensis, was experimentally manipulated in replicated field enclosures to test the importance of intraguild predation to survivorship and development of T. angustipennis. T. angustipennis is nor...

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Bibliographic Details
Published in:Oecologia 1995-12, Vol.104 (4), p.496-500
Main Authors: Snyder, W.E, Hurd, L.E. (Delaware Univ., Newark (USA). School of Life Sciences. Ecology Program)
Format: Article
Language:English
Subjects:
Animal and plant ecology
ANIMAL ECOLOGY
Animal, plant and microbial ecology
Animals
Biological and medical sciences
BIOLOGICAL COMPETITION
Body size
COMPETENCIA BIOLOGICA
COMPETITION BIOLOGIQUE
Congeners
Demecology
DEPREDACION
Developmental asynchrony
ECLOSION
ECOLOGIA ANIMAL
Ecological competition
ECOLOGIE ANIMALE
Eggs
Fundamental and applied biological sciences. Psychology
Hatch phenology
HATCHING
Instars
Interspecific competition
Intraguild predation
Mantidae
Mantids
MANTODEA
Mortality
Nymphs
Phenology
PREDATION
Predators
Protozoa. Invertebrata
Tenodera angustipennis
Tenodera sinensis
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Summary:Relative timing of egg hatch between two co-occurring, congeneric mantids, Tenodera angustipennis and T. sinensis, was experimentally manipulated in replicated field enclosures to test the importance of intraguild predation to survivorship and development of T. angustipennis. T. angustipennis is normally smaller than its congener because of later egg-hatch. Delaying introduction of T. sinensis relative to normal egg hatch phenology reduced mortality for T. angustipennis, but did not affect its rate of development. The results indicate that intraguild predation by normally earlier-hatching T. sinensis can be an important factor in the early life history of T. angustipennis, but that interspecific competition is not a strong selective factor in developmental asynchrony between these two species.
ISSN:0029-8549
1432-1939
DOI:10.1007/bf00341347