Low host specificity in species-rich assemblages of xylem- and phloem-feeding herbivores (Auchenorrhyncha) in a New Guinea lowland rain forest

  title={Low host specificity in species-rich assemblages of xylem- and phloem-feeding herbivores (Auchenorrhyncha) in a New Guinea lowland rain forest},
  author={Francesca Dem and Alan J. A. Stewart and Amos Gibson and George D. Weiblen and Vojtěch Novotn{\'y}},
  journal={Journal of Tropical Ecology},
  pages={467 - 476}
Abstract: We documented one of the most species-rich assemblages of tropical rain-forest Auchenorrhyncha, comprising 402 phloem- and xylem-feeding species, by sampling adults from forest vegetation. Further, we reared 106 species from larvae sampled on 14 plant species. Both xylem- and phloem-feeding guilds exhibited wide host-plant ranges, as 74% of species fed on more than one plant family. In comparison, using data extracted from the temperate-zone literature, phloem-feeders exhibited lower… 

Mesophyll cell‐sucking herbivores (Cicadellidae: Typhlocybinae) on rainforest trees in Papua New Guinea: local and regional diversity of a taxonomically unexplored guild

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Host specificity of Lepidoptera in tropical and temperate forests

It is suggested that greater specialization in tropical faunas is the result of differences in trophic interactions; for example, there are more distinct plant secondary chemical profiles from one tree species to the next in tropical forests than in temperate forests as well as more diverse and chronic pressures from natural enemy communities.

Relation between temporal persistence of host plants and wing length in leafhoppers (Hemiptera: Auchenorrhyncha)

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Host specialization of leaf-chewing insects in a New Guinea rainforest

The number of new herbivore species resulting from the addition of the xth plant species to the compound community can be described as y = cxk, where c and k are constants, which is an order of magnitude lower than previously suggested.

Seasonality of sap-sucking insects (Auchenorrhyncha, Hemiptera) feeding on Ficus (Moraceae) in a lowland rain forest in New Guinea

Sap-sucking insects (Auchenorrhyncha, Hemiptera) were sampled quantitatively from the foliage of 15 species of Ficus in a lowland rain forest in Papua New Guinea to reveal a significant correlation between seasonality and host specificity, so that polyphagous species had, on average, larger populations than specialists.

No tree an island: the plant-caterpillar food web of a secondary rain forest in New Guinea

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Host specificity of insect herbivores in tropical forests

  • V. NovotnýY. Basset
  • Environmental Science
    Proceedings of the Royal Society B: Biological Sciences
  • 2005
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Why Are There So Many Species of Herbivorous Insects in Tropical Rainforests?

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