+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn

+ Translate
+ Recently Requested

Host-parasitoid food webs: dynamics, persistence, and invasion

Host-parasitoid food webs: dynamics, persistence, and invasion

American Naturalist 148(5): 787-806

The population dynamics of a model host-parasitoid community with 2 hosts that interacted only through a shared generalist parasitoid were studied. The community was completed by 2 specialist parasitoids, each of which attacked one host. Communities in different regions of parameter space were predicted on the basis of community stability and the invasion ability of the absent species. Specialists and generalists' relative searching efficiencies and density-dependent reduction in parasitoid searching efficiency crucially determined community structure. There was no dynamically stable end point in some areas of parameter space, resulting in complex cycles in which the food web's structure constantly changed as species were lost and added. A species' ability to invade could depend on the interaction of invading and resident species' dynamics. Complex dynamic behavior determined by local population interactions and frequency of species invasions can thus be displayed by some communities of hosts and parasitoids.

(PDF emailed within 0-6 h: $19.90)

Accession: 002860537

Download citation: RISBibTeXText

DOI: 10.2307/2463406

Related references

Parasitoid-host food webs and donor control. Oikos 65.1, 1992

New PCR primers enhance investigation of host-parasitoid food webs. Entomologia Experimentalis et Applicata 162(3): 309-314, 2017

What do molecular methods bring to host-parasitoid food webs?. Trends in Parasitology 31(1): 30-35, 2015

Habitat modification alters the structure of tropical host-parasitoid food webs. Nature (London) 445(7124): 202-205, 2007

Comparing parasitoid-dominated food webs with other food webs: problems and future promises. Unknown, 2000

Network topology: patterns and mechanisms in plant-herbivore and host-parasitoid food webs. Journal of Animal Ecology 80(2): 342-351, 2011

Establishment and dominance of an introduced herbivore has limited impact on native host-parasitoid food webs. Biological Invasions 14(1): 229-244, 2012

Complementarity and redundancy of interactions enhance attack rates and spatial stability in host-parasitoid food webs. Ecology 95(7): 1888-1896, 2014

Facultative bacterial endosymbionts shape parasitoid food webs in natural host populations: A correlative analysis. Journal of Animal Ecology 87(5): 1440-1451, 2018

Unravelling mummies: cryptic diversity, host specificity, trophic and coevolutionary interactions in psyllid - parasitoid food webs. Bmc Evolutionary Biology 17(1): 127, 2017

Theory of invasion extinction dynamics in minimal food webs. Physical Review. E 97(2-1): 022404, 2018

Periodic local disturbance in host-parasitoid metapopulations: host suppression and parasitoid persistence. Journal of Theoretical Biology 227(1): 13-23, 2004

Roles of local and regional dynamics in population persistence Insights from a host-parasitoid system. Bulletin of the Ecological Society of America 77(3 SUPPL PART 2): 10, 1996

The size based dynamics of plankton food webs ii. simulations of three contrasting southern benguela food webs. Journal of Plankton Research 13(5): 1039-1092, 1991

The consequences of stochasticity for self-organized spatial dynamics, persistence and coexistence in spatially extended host-parasitoid communities. Proceedings of the Royal Society of London Series B Biological Sciences 263(1370): 625-631, 1996