R. Beaver

Publications244
h-index23
Citations2,218
Highly Influential Citations131
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Insect-fungus relationships in the bark and ambrosia beetles.
Cladistic review of generic taxonomic characters in Xyleborina (Coleoptera: Curculionidae: Scolytinae)
TLDR
The characters most useful for generic‐level taxonomy of Xyleborina were identified and their states refined and illustrated and an accompanying illustrated multiple‐entry electronic key for the updated xyleborine classification is published.
On the Trophic Relations of Insects: A Food-Web Approach
TLDR
Trophic relations of 95 insect-dominated food webs from seven habitat categories are examined and discussed in relation to current ecological theory, and nearly half of all the insect taxa (families) have members that are top predators in certain habitats even after vertebrates are factored in.
NON-EQUILIBRIUM 'ISLAND' COMMUNITIES: DIPTERA BREEDING IN DEAD SNAILS
  • R. Beaver
  • Environmental Science
  • 1 October 1977
TLDR
The patterns of abundance of species and individuals among the snails, and successional and seasonal changes in these patterns are examined, and the effects of predation, parasitism and competition on the communities are looked at.
A Comparison of Bark and Ambrosia Beetle Communities in Two Forest Types in Northern Thailand (Coleoptera: Curculionidae: Scolytinae and Platypodinae)
TLDR
The results of quantitative trapping of bark and ambrosia beetles over 2 yr at two localities in northern Thailand show that even modest samples, if properly structured and analyzed, can answer many ecological questions and can serve in biodiversity comparisons on broad scales.
Improving Food Webs
The most ancient bark beetle known: a new tribe, genus and species from Lebanese amber (Coleoptera, Curculionidae, Scolytinae)
TLDR
This finding suggests that the Scolytinae became a distinct lineage of Curculionoidea from the Lower Cretaceous, and can be used as evidence against the hypothesis of bark beetles as offspring of weevils.
The infestation by an exotic ambrosia beetle, Euplatypus parallelus (F.) (Coleoptera: Curculionidae: Platypodinae) of Angsana trees (Pterocarpus indicus Willd.) in southern Thailand
TLDR
An exotic ambrosia beetle, Euplatypus parallelus (F.) was collected from infested Pterocarpus indicus Willd, and might be a cause of death of P. indicus.
Taxonomy and Systematics of Bark and Ambrosia Beetles
TLDR
Bark beetles usually live in scattered habitat units, which means that the new generation of adults must disperse to find new breeding sites, and that bark and ambrosia beetle populations are very variable both in space and time, depending on the spatial and temporal availability of suitablebreeding material.
Geographical variation in food web structure in Nepenthes pitcher plants
TLDR
Outlying species of Nepenthes in the Seychelles, Sri Lanka and Madagascar have fewer species of both prey and predator living in them, fewer and smaller guilds of species, much apparently empty niche space, less complex food webs, and a greater connectance.
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