Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Christine B. Müller"'
Autor:
Jana S Petermann, Christine B Müller, Christiane Roscher, Alexandra Weigelt, Wolfgang W Weisser, Bernhard Schmid
Publikováno v:
PLoS ONE, Vol 5, Iss 8, p e12053 (2010)
The consequences of plant species loss are rarely assessed in a multi-trophic context and especially effects on life-history traits of organisms at higher trophic levels have remained largely unstudied. We used a grassland biodiversity experiment and
Externí odkaz:
https://doaj.org/article/d5e21b2b7ac24ab6b2bd5332326c5908
Publikováno v:
PLoS ONE, Vol 3, Iss 5, p e2111 (2008)
The Janzen-Connell model states that plant-specific natural enemies may have a disproportionately large negative effect on progeny close to maternal trees. The majority of experimental and theoretical studies addressing the Janzen-Connell model have
Externí odkaz:
https://doaj.org/article/aa2ec7d5744f42bebbb1c826053eb636
Publikováno v:
Naturwissenschaften, 96 (3)
Naturwissenschaften, 96 (3)
ISSN:1432-1904
ISSN:0028-1042
ISSN:1432-1904
ISSN:0028-1042
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df6b28bf2a53b8f78dea1dc1d8a42ed3
http://doc.rero.ch/record/322284/files/114_2008_Article_481.pdf
http://doc.rero.ch/record/322284/files/114_2008_Article_481.pdf
Autor:
Christine B. Müller, H. C. J. Godfray
Publikováno v:
Oecologia. 119(1)
We investigated why two species of aphids (Aphis jacobaeae and Brachycaudus cardui) were very rare in a study site despite their abundance in the surrounding area. The study site contained many common species of aphid and we tested the hypothesis tha
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
Herbivore dynamics and community structure are influenced both by plant quality and the actions of natural enemies. A factorial experiment manipulating both higher and lower trophic levels was designed to explore the determinants of colony growth of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e86688a45b2e88ee4e6b51e1add620
https://ora.ox.ac.uk/objects/uuid:3749bf9f-12aa-4a51-a640-d26df852c64c
https://ora.ox.ac.uk/objects/uuid:3749bf9f-12aa-4a51-a640-d26df852c64c
Autor:
Jochen Krauss, Simone A. Härri, F. J. Frank van Veen, Thomas S. Jones, Eric Allan, Christine B. Müller
Publikováno v:
Oikos. 120:1031-1036
Genetic diversity in plant populations has been shown to affect the species diversity of insects. In grasses, infection with fungal endophytes can also have strong effects on insects, potentially modifying the effects of plant genetic diversity. We m
Publikováno v:
Basic and Applied Ecology
Ever since the introduction of transgenic crops one of the main concerns has been their potential impact on non-target organisms. In this study we looked at the impact of transgenic disease-resistant wheat on different clones of the aphid Metopolophi
Publikováno v:
Perspectives in Plant Ecology, Evolution and Systematics. 11:241-254
Pollination webs have recently deepened our understanding of complex ecosystem functions and the susceptibility of biotic networks to anthropogenic disturbances. Extensive mutualistic networks from tropical species-rich communities, however, are extr
Publikováno v:
Journal of Evolutionary Biology. 22:1775-1780
Genetic variation for fitness-relevant traits may be maintained in natural populations by fitness differences that depend on environmental conditions. For herbivores, plant quality and variation in chemical plant defences can maintain genetic variati