Zobrazeno 1 - 8
of 8
pro vyhledávání: '"F. J. F. Van Veen"'
Autor:
F. J. F. van Veen, D. Sanders
Publikováno v:
Ecosphere, Vol 4, Iss 5, Pp 1-12 (2013)
The strength of top‐down indirect effects of carnivores on plants (trophic cascades) varies greatly and may depend on the identity of the intermediate (herbivore) species. If the effect strength is linked to functional traits of the herbivores then
Externí odkaz:
https://doaj.org/article/9595bf2121d9475aa65c35a5ecac4fde
Autor:
Dominic C. Henri, F. J. F. van Veen
Publikováno v:
Ecology. 97:1381-1387
Temporal variability in the distribution of feeding links in a food web can be an important stabilizing factor for these complex systems. Adaptive foraging and prey choice have been hypothesized to cause this link flexibility as organisms adjust thei
Spatial heterogeneity in risk of secondary parasitism in a natural population of an aphid parasitoid
Summary 1 The relationship between primary parasitoid (Aphidius matricariae) density and the risk of secondary parasitism (chiefly by Alloxysta tcheki) was studied in a system based on the aphid Capitophorus carduinis feeding on Cirsium palustre. 2 T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6e0af2788c93ed8c3892ad8a73b3756
https://ora.ox.ac.uk/objects/uuid:9e91993e-7fad-4448-8be6-11cfa5928f9d
https://ora.ox.ac.uk/objects/uuid:9e91993e-7fad-4448-8be6-11cfa5928f9d
Autor:
Ines M.G. Vollhardt, William Oliver Christian Symondson, Michael Traugott, Wilf Powell, F. J. F. Van Veen, James R. Bell, Gavin R. Broad
Publikováno v:
Molecular Ecology. 17:3928-3938
Insect parasitoids play a major role in terrestrial food webs as they are highly diverse, exploit a wide range of niches and are capable of affecting host population dynamics. Formidable difficulties are encountered when attempting to quantify host-p
Publikováno v:
Community Ecology. 4:79-88
We present a new method to asses the strength of indirect interactions and to indentify candidate keystone species in quantitative food webs. We apply this method to the structural analysis of a host-parasitoid community. The strength and symmetry of
Publikováno v:
Ecological Entomology. 26:425-429
1. The influence of the presence of secondary parasitoids on aphid reproduction was tested in a field experiment. 2. Single pea aphids Acyrthosiphon pisum in clip cages on potted bean plants were exposed to a collection of secondary parasitoids enclo
Publikováno v:
The Journal of animal ecology. 77(1)
1. Most communities of insect herbivores are unlikely to be structured by resource competition, but they may be structured by apparent competition mediated by shared natural enemies. 2. The potential of three guilds of natural enemies (parasitoids, f
Autor:
James I. Prosser, Alex Douglas, Alistair C. Darby, F. J. F. Van Veen, Gordon Webster, Tim J. Daniell, S. Haynes, H. C. F. Godfray
The bacterial communities of aphids were investigated by terminal restriction fragment length polymorphism and denaturing gradient gel electrophoresis analysis of 16S rRNA gene fragments generated by PCR with general eubacterial primers. By both meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92bc102e7c1108eda0436dbb948f0b5c
https://eprints.whiterose.ac.uk/329/1/douglasae1.pdf
https://eprints.whiterose.ac.uk/329/1/douglasae1.pdf