Zobrazeno 1 - 10
of 36
pro vyhledávání: '"James V. Robinson"'
Publikováno v:
Molecular Phylogenetics and Evolution. 11:110-121
Relationships of North American damselflies of the genus Ischnura (Odonata: Zygoptera: Coenagrionidae) were investigated using a total of 1205 bp from portions of three mitochondrial genes: cytochrome b, cytochrome oxidase II, and 12S ribosomal DNA.
Autor:
James V. Robinson, Lawrence R. Shaffer
Publikováno v:
Journal of Insect Behavior. 9:407-419
Zygopteran larvae normally encounter other aquatic macroinvertebrates that are predators, competitors, and prey and should therefore demonstrate varied responses when faced with different categories of opponent. In a laboratory experiment individual
Autor:
James V. Robinson, Richard L Allgeyer
Publikováno v:
Biological Journal of the Linnean Society. 58:85-98
The apparent erratic variation in life history traits, coloration patterns, and behaviours that exists among species within the damselfly genus Ischnura is shown to be interpretable when the species are partitioned into three groups. One group consis
Autor:
CRAIG A. BURNSIDE, JAMES V. ROBINSON
Publikováno v:
Zoological Journal of the Linnean Society. 114:155-171
Autor:
James V. Robinson, Craig A. Burnside
Publikováno v:
Zoological Journal of the Linnean Society. 114:155-171
During their later instars, coenagrionid damselfly larvae reduce their relative investment in lamellae. Caudal lamellae play a role in swimming by allowing a larva to take advantage of its body size when at least one lamella is present, and this bene
Autor:
Richard K. Jansson, Kenneth A. Sorensen, Robert R. Heath, James V. Robinson, Abner M. Hammond, L. J. Mason
Publikováno v:
Journal of Economic Entomology. 85:416-423
Studies were conducted to develop a pheromone-trap monitoring system for sweetpotato weevil, Cylas formicarius (Fabricius), in the southern United States. Effects of trap type and pheromone dose on weevil collections in traps baited with synthetic se
Autor:
James V. Robinson, Gary A. Wellborn
Publikováno v:
Canadian Journal of Zoology. 69:2515-2522
The impact of predaceous fish on littoral macroarthropod abundances was examined during a 1-year predator density manipulation experiment in a central Texas reservoir. Six sites were selected to receive experimental units. Each site consisted of two
Publikováno v:
Oecologia. 87:1-7
Damselfly larvae may autotomize and regenerate any of their 3 caudal lamellae. At least one missing or regenerating lamella was evident in 50.1% of field collected Ischnura posita larvae. Lamellae loss during molting is very infrequent (1 out of 117
Autor:
Kenneth L. Cameron, James V. Robinson
Publikováno v:
Contributions to Mineralogy and Petrology. 104:609-614
Autor:
Gary A. Wellborn, James V. Robinson
Publikováno v:
American Midland Naturalist. 136:110
We investigated the impact of a thermal effluent from an electricity-generating plant on the macroarthropod community in a central Texas reservoir for 1 yr by comparing the community of a 60-ha pond directly receiving the effluent to an area in the m