Pattern and Process in Host-Parasitoid Interactions
نویسندگان
چکیده
منابع مشابه
Tree phylogenetic diversity promotes host-parasitoid interactions.
Evidence from grassland experiments suggests that a plant community's phylogenetic diversity (PD) is a strong predictor of ecosystem processes, even stronger than species richness per se This has, however, never been extended to species-rich forests and host-parasitoid interactions. We used cavity-nesting Hymenoptera and their parasitoids collected in a subtropical forest as a model system to t...
متن کاملMultiple attractors in host-parasitoid interactions: coexistence and extinction.
This paper considers the dynamics of a two-dimensional discrete-time model for host-parasitoid interactions, and shows that the model has two attractors: the fixed point where two species coexist and a boundary cycle where the parasitoid is absent. The analysis with the Liapunov exponent confirms that this kind of bistability is common in this model. The generality of this phenomenon in host-pa...
متن کاملClimate variation alters the synchrony of host–parasitoid interactions
Observed changes in mean temperature and increased frequency of extreme climate events have already impacted the distributions and phenologies of various organisms, including insects. Although some research has examined how parasitoids will respond to colder temperatures or experimental warming, we know relatively little about how increased variation in temperature and humidity could affect int...
متن کاملComplementarity and redundancy of interactions enhance attack rates and spatial stability in host-parasitoid food webs.
Complementary resource use and redundancy of species that fulfill the same ecological role are two mechanisms that can respectively increase and stabilize process rates in ecosystems. For example, predator complementarity and redundancy can determine prey consumption rates and their stability, yet few studies take into account the multiple predator species attacking multiple prey at different r...
متن کاملSpatial and Temporal Heterogeneity of Host-Parasitoid Interactions in Lupine Habitat
The inhabitants of the bush lupine in coastal California have been the subject of scientific scrutiny in recent years. Observations of a host-parasitoid interaction in the shrub's foliage, in which victims are significantly less motile than their exploiters, record stable spatial patterns in a fairly homogeneous environment. Though such pattern formation has been found in reaction-diffusion mod...
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ژورنال
عنوان ژورنال: The Florida Entomologist
سال: 1995
ISSN: 0015-4040
DOI: 10.2307/3495912