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Enhanced stability in host–parasitoid interactions with autoparasitism and parasitoid migration
Journal of Theoretical Biology, 2016Previous studies based on simple non-spatial model have suggested that autoparasitism, in which females develop as primary endoparasitoids of hosts while males develop at the expense of primary parasitoids, stabilizes host-parasitoid steady state. To date, however, how the stabilizing role of autoparasitism would be affected by more complex spatial ...
Huang, Yunxin +5 more
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Semiochemicals and learning in parasitoids
Journal of Chemical Ecology, 1990There is increasing evidence that parasitoid responses to semiochemicals, important stimuli in the host location process, are influenced by experience. This paper focuses on the role of learning, in particular associative learning, in responses to odors.
Vet, L.E.M., Groenewold, A.W.
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Host/parasitoid interactions: critical timing of parasitoid-derived products
Journal of Insect Physiology, 1998Short-term in vitro incubations were used to examine the ability of endoparasitoid larvae to produce and release both ecdysteroids and proteins into their environment. Second instar larvae of both Chelonus near curvimaculatus and Ascogaster quadridentata were observed by SDS-PAGE to release temporally-similar polypeptides in the 20-30kD M(r) range ...
J J., Brown, D A., Reed
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Teratocytes and their functions in parasitoids
Current Opinion in Insect Science, 2014Some endoparasitoid wasps (Hymenoptera) produce teratocytes, which are a type of cell that is released into host insects when wasp eggs hatch. In this short review I first summarize the different taxa of wasps that produce teratocytes, the embryonic origin of these cells, and key features of teratocyte growth.
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Searching for Food or Hosts: The Influence of Parasitoids Behavior on Host–Parasitoid Dynamics
Theoretical Population Biology, 1997A host-parasitoid system with overlapping generations is considered. The dynamics of the system is described by differential equations with a control parameter describing the behavior of the parasitoids. The control parameter models how the parasitoids split their time between searching for hosts and searching for non-host food.
Křivan, Vlastimil, Sirot, Etienne
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What determines host range in parasitoids? An analysis of a tachinid parasitoid community
Oecologia, 2003Despite the vast diversity of parasitic insects and their importance in natural and agricultural communities, our knowledge of what determines their patterns of association with hosts remains sparse. Unlike most parasites that tend to be specialized, parasitoid flies in the family Tachinidae exhibit a broad spectrum of host-specificity, with many ...
John O, Stireman, Michael S, Singer
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Parasitoid Foraging and Learning
1995The diminutive size of most parasitoids undoubtedly has limited their choice as subjects for behavioral study, despite their great diversity in lifestyles and reproductive strategies. The present chapter addresses their foraging behavior as influenced by learning.
Vet, L.E.M., Lewis, W.J., Cardé, R.T.
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Egg Load Evolution in Parasitoids
The American Naturalist, 2000Parasitic wasps lay their eggs in or on other insects. Allocation of resources to reproduction (eggs) and survival (life span) should maximize reproductive success, but stochasticity in the number of hosts encountered precludes an exact match of allocation with reproductive opportunity.
Ellers, J. +2 more
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Parasitoid Competition and the Dynamics of Host-Parasitoid Models
The American Naturalist, 1988The standard host-parasitoid models assume that each parasitized host yields the same number of parasitoid progeny; but in many parasitoid species, the number of progeny per host depends on the number of times that host was encountered. I present a family of new host-parasitoid models incorporating this encounter-density-dependent variability in ...
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