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A method for estimating larval life spans of aseasonal aquatic insects from streams on Bougainville Island, Papua New Guinea (1996)

MARCHANT, R. ; YULE, C.M.

Oxford BSL : Blackwell Science Ltd

Freshwater biology 35 (1996), S. 0

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ISSN: 1365-2427

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology

Notes: 1. The larval life spans of twelve species of aseasonal aquatic insects (eight Trichoptera, three Ephemeroptera, one Odonata) were investigated in two tropical streams with near constant water temperatures.2. Life spans were estimated from equations relating larval life span to the ratio between cohort production (estimated from the size–frequency technique) and annual production (estimated from regressions in the literature).3. Life spans varied from 40 to 250 days and were positively correlated with maximum larval dry weight (r = 0.73, P 〈 0.001). Ephemeroptera had the shortest larval life spans (40–110 days), Trichoptera intermediate (95–185 days) and Odonata the longest (250 days).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1046/j.1365-2427.1996.d01-449.x

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