Ecological energetics of populations of four sympatric isopods in a Hong Kong forest

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • P. K S Lam
  • D. Dudgeon
  • H. H T Ma

Detail(s)

Original languageEnglish
Pages (from-to)475-490
Journal / PublicationJournal of Tropical Ecology
Volume7
Issue number4
Publication statusPublished - 1991
Externally publishedYes

Abstract

Population energy budgets of Burmoniscus ocellatus, Burmoniscus sp. (Philosciidae), Formosillo raffaelei and Orodillo maculatus (Armadillidae), were calculated. Mean population standing stock of the four species ranged from 1.25-13.61 kJ m-2. Mean total isopod biomass at the two sites was 0.85 and 1.85 g m-2. Annual production of the four species varied from 4.24-30.43 kJ m-2 with 5.2-26.4% (energy content) allocated to reproduction. Annual production of the four species combined at the two sites was 23.22 and 50.15 kJ m-2. P/-\B ratios varied from 2.24-4.27. Annual population consumption on mixed litter by the four isopod species ranged from 28.4-183.0 kJ m-2. Total annual consumption by all species at the two sites was 233.7 and 360.2 kJ m-2 (1.96 and 2.53% of annual litter fall). Isopod respiratory rates were proportional to body weight, with an exponent ranging from 0.68-0.78 at 23°C. The annual population metabolism of the four species varied from 14.62-86.11 kJ m-2. Total annual isopod metabolism at the two sites was 116.33 and 185.95 kJ m-2. -from Authors

Citation Format(s)

Ecological energetics of populations of four sympatric isopods in a Hong Kong forest. / Lam, P. K S; Dudgeon, D.; Ma, H. H T.

In: Journal of Tropical Ecology, Vol. 7, No. 4, 1991, p. 475-490.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review