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Arthropod diel activity and stratification [PDF]
, 2003 Many studies of canopy arthropods in rainforests rely on methods that do not permit comparison of day and night activities of the target fauna: accordingly, data on arthropod diet activity are scarce. Nevertheless, such information as is available suggests significant dissimilarities during the course of the day and a greater activity of insect ...
Basset, Yves +3 more
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Diel activity patterns of some field Carabidae
Ecological Entomology, 1978Abstract. 1. A 24 h time‐sorting pitfall trap was used to collect Carabidae in a field in north‐east England in 1974, 1976 and 1977. 2. Harpalus rufipes comprised 62% of the 5288 adult Carabidae caught.
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Optically active alternating copolymer and Diels-Alder adduct
Polymer Bulletin, 1980Asymmetric induction copolymerization and Diels-Alder reaction were investigated between acrylic monomer and olefin or diolefin with use of an optically active aluminum compound as the complexing agent. In the copolymerization, only benzofuran gave an optically active alternating copolymer, while butadiene and indene gave alternating copolymers but ...
Eiichi Kobayashi +2 more
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Auditory Sensitivity and Diel Flight Activity In Neotropical Lepidoptera
Annals of the Entomological Society of America, 2000If the primary function of ultrasound-sensitive ears in Lepidoptera is to detect the echolocation calls of insectivorous bats, diurnal species should exhibit signs of ultrasonic deafness. To test this hypothesis we recorded the 24-h (diel) flight activity of a sample of Neotropical butterflies and moths, including members of the Dioptinae, a reportedly
Fullard, James H. +3 more
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Electron transfer activation of the Diels-Alder reaction
Tetrahedron, 1982Abstract The Diels-Alder cycloaddition of anthracene to tetracyanoethylene (TCNE) is quantitatively compared to alkylmetal insertion under the same reaction conditions. In both systems, the observation of transient charge transfer (CT) absorption bands is related to the presence of 1:1 electron donor-acceptor complexes of anthracene (Ar) and ...
S. Fukuzumi, J.K. Kochi
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Diel activity of the adult Argentine stem weevil
New Zealand Journal of Zoology, 1986Abstract Feeding intensity of adult Listronotus bonariensis (Kuschel) in the laboratory increased linearly with temperature, between approximate lower and upper thresholds of 5°C and 42°C. Diel fluctuations in abundance, as indicated by sweep netting, was used as a measure of field activity.
G. M. Barker, R. P. Pottinger
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Melanism and diel activity of alpine Colias (Lepidoptera: Pieridae)
Oecologia, 1982The hypothesis that increased melanism provides a benefit in prolonging diel activity through more efficient absorption of solar radiation was tested in the field on a population of alpine Colias sulphur butterflies. A marked increase in the duration of flight and feeding behaviour existed for melanistic individuals when compared to lighter individuals
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Diel activity patterns in Metapenaeus and Penaeus juveniles
Hydrobiologia, 1995Small (5–10.9 mm carapace length), medium (11–15.9 mm), and large (16–20.9 mm) juveniles of Metapenaeus anchistus, Metapenaeus sp., Penaeus monodon and P. merguiensis were stocked individually in glass tanks provided with sand substrate, sea water, artificial bamboo shelter, aeration and food.
Primavera, Jurgenne, Lebata, J.
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Diel activity patterns in an arable collembolan community
Applied Soil Ecology, 2001Abstract Diel patterns of activity and abundance among soil-surface Collembola in a wheat crop in southern England were investigated in summer using pitfall trapping, suction sampling and sweep-net sampling. The multivariate technique principal response curves (PRC) analysis was used to investigate changes in the overall community composition within ...
Frampton, G.K. +2 more
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Characteristics of an RNA Diels−Alderase Active Site
Journal of the American Chemical Society, 1999The active site components and substrate specificity of an RNA Diels−Alderase (DA22) were investigated. Diels−Alderase activity was found to be highly dependent on a unique 5-position pyridyl modified uridine. Even closely related pyridyl modifications failed to yield active catalysts.
Theodore M. Tarasow +4 more
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