نتایج جستجو برای: bionomics
تعداد نتایج: 479 فیلتر نتایج به سال:
Mesomermis camdenensis n. sp. is described from larvae of Simulium tuberosum (lundstroem) collected in Camden Valley Creek, Washington County, New York. This species possesses a barrel-shaped vagina, vulval flap. two short separate spicules, terminal mouth, six longitudinal chords, six cephalic papillae, large sexually dimorpbic anaphids, an esophagns of uniform width which extends for less tha...
The following year (1952), after Emerson had presented his account, Dr. God-frey's story of the beginnings of the AES were set forth before the Society. It was quite different, almost, in fact-a rebuttal. Even in the early 1920s, as an active health official, Godfrey had begun a crusade to convince public health workers around the country of the value of accurate, quantitative reporting of dise...
Pitfall trapping is probably the most frequently used method for sampling grounddwelling arthropods. While the capture of specimens in pitfall traps largely depends on the number of individuals in the sampled area, trap design and trapping effort for a given environment, can also affect sampling success. The aim of this study was to determine the best pitfall trapping design for collecting grou...
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