Ricerca
Risultati della ricerca
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Journal article
Influences of host feeding-niche and foodplant type on generalist and specialist parasitoids
Parasitoids of 185 British herbivorous insect species were classified as being koinobionts (tending to be specialists) or idiobionts (potential generalists) to examine the influences of host feeding-niche and food plant type on the numbers of parasitoid species attacking individual host species. The majority of parasitoid species of exophytic (internally feeding)...Hawkins, B A ; Askew, R R ; Shaw, Mark R
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Journal article
Edward Charles Pelham-Clinton (1920-1988)
An obituary is given of E.C. Pelham-Clinton (1920-88), best known as co-author (with J.A. Campbell in 1960) of a taxonomic revision of the British Culicoides. A bibliography of his publications is appended.Shaw, Mark R ; Agassiz, D J L
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Parasitoids of European butterflies and their study
Shaw, Mark R
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An insect new to Scotland - or is it?
Shaw, Mark R
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Rearing parasitic wasps from spiders and their egg sacs
Shaw, Mark R
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Journal article
Why did a Clubiona reclusa eat her own eggs?
Shaw, Mark R
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Survey of parasitoids of British butterflies
Shaw, Mark R ; Fitton, M G
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Journal article
Insect parasitoids. RESL Workshop, 21 October 1988
Shaw, Mark R
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Journal article
The biology, egg and larvae of Acaenitus dubitator (Panzer) (Hymenoptera, Ichneumonidae: Acaenitinae)
Acaenitus dubitator (Panzer) is found to be a koinobiont endoparasitoid of the larva of an endophytic beetle, Cleonis piger (Scopoli) (Curculionidae), in Britain, suggesting a similar mode of development for the ichneumonid subfamily Acaenitinae as a whole. The parasitoid can overwinter in its cocoon in one of two ways. Individuals...Shaw, Mark R ; Wahl, D B
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Journal article
The Hymenoptera
Gauld, I D ; Bolton, B ; Huddleston, T ; Fitton, M G ; Shaw, Mark R …
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Journal article
The Duke of Newcastle
Shaw, Mark R
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Journal article
Pimpline ichneumon-flies. Hymenoptera, Ichneumonidae (Pimplinae)
The British Pimplinae are revised, and illustrated keys are provided for their identification. For each species details of known distribution and biology in Britain are summarised. This treatment is supplemented by a checklist, notes on techniques and the systematics of Pimplinae, and a general review of the biology of the...Fitton, M G ; Shaw, Mark R ; Gauld, I D
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Journal article
Reared parasitic Hymenoptera: a plea
Shaw, Mark R
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Journal article
The Hymenoptera associated with spiders in Europe
The Hymenoptera known to be obligatory parasitoids or predators of spiders or their eggs in Europe form a rather diverse assemblage. Their biologies are briefly reviewed; known host associations are summarized for each genus; and a key is given to the genera of Hymenoptera (other than Pompilidae) involved.Fitton, M G ; Shaw, Mark R ; Austin, A D
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Journal article
Seasonal variation in the reproductive strategy of the parasitic wasp Eulophus larvarum (Hymenoptera: Chalcidoidea: Eulophidae)
1. Eulophus larvarum (L.) (Hymenoptera: Eulophidae) is a gregarious parasitoid of lepidopterous larvae feeding on broad-leaved trees. Normally there are two generations a year. 2. Sex ratio in the spring generation of larvae is female biased. The bias is probably due to local mate competition as progeny from one brood...Godfray, H C ; Shaw, Mark R
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Journal article
Hymenoptera: Parasitica. The parasitic wasps
Shaw, Mark R
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Journal article
Scottish insect records
Shaw, Mark R
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Journal article
Parasitoid communities: their size, structure and development
In this chapter the authors first consider the literature on host-parasitoid associations and its limitations. They then review ideas that have been applied to the study of parasitoid communities. The authors develop a system of categorizing parasitoids, based on a fundamental dichotomy in their biology, which allows them to make...Askew, R R ; Shaw, Mark R
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Journal article
Edinburgh's clouded, drab summer
Shaw, Mark R
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Journal article
Semi-arboreal habits of Spilosoma and Arctia species
Shaw, Mark R
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Journal article
Insects associated with birch
The entomology of birch in Britain (and to a lesser extent in Fennoscandia) is reviewed in broad ecological terms. In particular, the size of the associated fauna, the kinds of geographical distribution patterns seen for birch insects in Britain, birch defoliators, and the conservation needs of insects associated with birch...Shaw, Mark R
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Journal article
A second winter for Andricus
Shaw, Mark R
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Journal article
The taxonomy and biology of Diadegma chrysostictos (Gmelin) and Diadegma fabricianae sp. n. (Hymenoptera: Ichneumonidae)
A combination of morphological and biological evidence is used to separate two species of Ichneumonidae parasitizing Lepidoptera: Diadegma chrysostictos (Gmelin), a parasitoid of phycitine and galleriine Pyralidae, and Diadegma fabricianae sp.n. which parasitizes the choreutid Anthophila fabriciana (Linnaeus). An inbred laboratory culture of D.chrysostictos was found to be atypical with...Horstmann, K ; Shaw, Mark R
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Journal article
Insects and spiders on snowfields in the Cairngorms, Scotland
An account is given of seven collections of insects and spiders made in summer 1979 on snowfields above 1100m elevation in the Cairngorm mountains, Scotland. In one comprehensive collection 278 recently deposited animals representing 35 species were obtained in 25 m2; the other collections were selective. A high proportion of...Ashmole, N P ; Nelson, J M ; Shaw, Mark R ; Garside, A
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Journal article
Synthesis and reactions of 4-aryloxyflavans
4α-Aryloxyflavans unsubstituted in ring A have been synthesised by the reaction of phenols with flavan-4β-ols in the presence of boron trifluoride in ether. If reaction times are prolonged beyond disappearance of the starting 4β-ols, thermodynamic control leads to 4-arylflavans and the yields of 4-aryloxyflavans are negligible. 4-Arylflavans are the sole...Bateman, G ; Brown, B R ; Campbell, J B ; Cotton, C A ; Johnson, P …