Larval growth dynamics ofHemipyrellia ligurriens (Calliphoridae) andBoettcherisca formosensis (Sarcophagidae) in crowded and uncrowded cultures |
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Authors: | Ping-Man So and David Dudgeon |
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Institution: | (1) Department of Zoology, University of Hong Kong, Hong Kong;(2) Present address: Entomological Laboratory, College of Agriculture, Kyoto University, 606 Kyoto, Japan |
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Abstract: | Summary Larval growth patterns ofHemipyrellia ligurriens (Calliphoridae) andBoettcherisca formosensis (Sacophagidae) in crowded and uncrowded cultures were compared. Growth of the larvae followed a sigmoid curve. The highest
larval growth rates were 0.33 and 0.36 mg h−1 for uncrowded and crowdedH. ligurriens respectively. The corresponding figures were 2.38 and 1.23 mg h−1 forB. formosensis. Larvae of both species attained maximum weight earlier in crowded cultures than in uncrowded cultures, although the final
weights attained in crowded cultures were less. The earlier period of most rapid growth in both species was interpreted as
a result of intraspecific facilitation at higher larval densities. UncrowdedB. formosensis had a shorter larval to pupal development and an earlier period of most rapid growth than uncrowdedH. ligurriens, suggesting the former may be superior in exploiting carcasses with limiting food. |
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