Browsing Articles: Department of Biological Sciences by Author "Loxdale, Hugh D."
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The 'Cake on the plate' syndrome ... and how specialist tansy aphids avoid extinction by hungry predators and parasitoids: insights from the use of polymorphic microsatellite markers
Nyabuga, Franklin N.; Loxdale, Hugh D.; Weisser, Wolfgang W. (2008)It was initially shown from 12.2 m high suction trap aerial density data and later confirmed using polymorphic molecular markers (initially allozymes, later high resolution DNA markers, especially microsatellites), that ... -
The 'Cake on the plate' syndrome ... and how specialist tansy aphids avoid extinction by hungry predators and parasitoids: insights from the use of polymorphic microsatellite markers
Nyabuga, Franklin N.; Loxdale, Hugh D.; Weisser, Wolfgang W. (2016-07)It was initially shown from 12.2 m high suction trap aerial density data and later confirmed using polymorphic molecular markers (initially allozymes, later high resolution DNA markers, especially microsatellites), that ... -
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 ... -
Microsatellites from Lysiphlebus hirticornis Mackauer (Hymenoptera: Braconidae), a specialist primary parasitoid attacking the specialist tansy aphid, Metopeurum fuscoviride Stroyan (Hemiptera: Aphididae)
Loxdale, Hugh D.; Sharbel, Tomothy F.; Todd, Mark; Weisser, Wolfgang W. (Blackwell Publishing Ltd, 2009-04)Nine polymorphic microsatellite loci were isolated from the specialist aphid parasitoid, Lysiphlebus hirticornis. In addition, two published loci from closely related Lysiphlebus species were also used. Allelic diversity ... -
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 ... -
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 ...