Browsing Articles: Department of Biological Sciences by Author "Heckel, David G."
Now showing items 1-7 of 7
-
Coevolutionary fine-tuning: evidence for genetic tracking between a specialist wasp parasitoid and its aphid host in a dual metapopulation interaction
Nyabuga, Franklin N.; Loxdale, Hugh D.; Heckel, David G.; Weisser, Wolfgang W. (Cambridge University Press, 2012-04)In the interaction between two ecologically-associated species, the population structure of one species may affect the population structure of the other. Here, we examine the population structures of the aphid Metopeurum ... -
Effects of pea aphid secondary endosymbionts on aphid resistance and development of the aphid parasitoid Aphidius ervi: a correlative study
Nyabuga, Franklin N.; Outreman, Yannick; Jean-Christophe, Simon; Heckel, David G.; Weisser, Wolfgang W. (2010-05)In order to reduce parasite-induced mortality, hosts may be involved in mutualistic interactions in which the partner contributes to resistance against the parasite. The pea aphid, Acyrthosiphon pisum Harris (Hemiptera: ... -
Effects of pea aphid secondary endosymbionts on aphid resistance and development of the aphid parasitoid Aphidius ervi: a correlative study
Nyabuga, Franklin N.; Outreman, Yannick; Simon, Jean-Christophe; Heckel, David G.; Weisser, Wolfgang W. (2010-05)In order to reduce parasite-induced mortality, hosts may be involved in mutualistic interactions in which the partner contributes to resistance against the parasite. The pea aphid, Acyrthosiphon pisum Harris (Hemiptera: ... -
Spatial population dynamics of a specialist aphid parasitoid, Lysiphlebus hirticornis Mackauer (Hymenoptera: Braconidae: Aphidiinae): evidence for philopatry and restricted dispersal
Nyabuga, Franklin N.; Loxdale, Hugh D.; Heckel, David G.; Weisser, Wolfgang W. (Macmillan Publishers Limited, 2010-01)Within insect communities, the population ecology of organisms representing higher trophic levels, for example, hymenopterous parasitoids, may be influenced by the structure of their insect hosts. Using microsatellite ... -
Stay at home aphids: comparative spatial and seasonal metapopulation structure and dynamics of two specialist tansy aphid species studied using microsatellite markers
Nyabuga, Franklin N.; Loxdale, Hugh D.; Schöfl, Gerhard; Wiesner, Kerstin R.; Heckel, David G.; Weisser, Wolfgang W. (The Linnean Society of London, 2011-06)Two tansy-feeding aphids, Macrosiphoniella tanacetaria (MA) and Metopeurum fuscoviride (ME), were studied at a small spatial scale in and around Jena (< 80 km2) using polymorphic microsatellite markers. Both species were ... -
Stay at home aphids: comparative spatial and seasonal metapopulation structure and dynamics of two specialist tansy aphid species studied using microsatellite markers
Nyabuga, Franklin N.; Loxdale, H. D.; Weisser, W.; Heckel, David G. (2011-06)Two tansy-feeding aphids, Macrosiphoniella tanacetaria (MA) and Metopeurum fuscoviride (ME), were studied at a small spatial scale in and around Jena (< 80 km2) using polymorphic microsatellite markers. Both species were ... -
Temporal genetic structuring of a specialist parasitoid, Lysiphlebus hirticornis Mackauer (Hymenoptera: Braconidae) attacking a specialist aphid on tansy
Nyabuga, Franklin N.; Loxdale, Hugh D.; Heckel, David G.; Weisser, Wolfgang W. (The Linnean Society of London, 2011)In insect species characterized by inbreeding, limited dispersal, and a metapopulation structure, high genetic differentiation and reduced genetic diversity within local populations are expected. Using the model ...