نتایج جستجو برای: chironomid genera
تعداد نتایج: 28194 فیلتر نتایج به سال:
Aquatic ecosystem responses to Holocene climate change and biome development in boreal, central Asia
Boreal ecosystems are highly vulnerable to climate change, and severe ecological impacts in the near future are virtually certain to occur. We undertook a multiproxy study on an alpine lake (ESM-1) at the modern tree-line in boreal, southern Siberia. Steppe and tundra biomes were extensive in eastern Sayan landscapes during the early Holocene. Boreal forest quickly expanded by 9.1 ka BP, and do...
The larva, pupa, male and female of a new Neotropical chironomid species, Oukuriella pesae, are described and illustrated. The larvae were found in freshwater sponge colonies of Oncosclera navicella (Carter, 1881) in Amazonian streams. The morphological characteristics of the larval head and the presence of fine particles in the larval gut contents suggest that the larvae probably feed on the s...
The Mesozoic chironomid genus Jurochlus Kalugina, 1985, known only as pupae, is reviewed. Four new species of Jurochlus are described from the Upper Jurassic and Lower Cretaceous deposits of Mongolia, viz. J. trivittatus sp. nov., J. limbatus sp. nov., J. lineatus sp. nov. (Shar Teg, J3) and J. adustus sp. nov. (Khutel Khara, J3/K1). Both previously described species, J. sibiricus Kalugina, 198...
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