caa a22 4500 386381038 CHVBK 20180307112041.0 cr unu---uuuuu 161130e198902 xx s 000 0 eng 10.1017/S0266467400003199 doi S0266467400003199 pii (NATIONALLICENCE)cambridge-10.1017/S0266467400003199 Litterfall and litter nutrient content in primary and secondary Amazonian ‘terra firme' rain forest [Elektronische Daten] Litterfall in primary and secondary forests (‘capoeira') in eastern Brazilian Amazonia was measured fortnightly from August 1979 to October 1980. The nutrient contents of the litter (N, P, K, Ca and Mg) were determined. Litterfall differed between the two forest types (primary forest − 8.04 t ha−1 yr−1; secondary forest − 5.04 t ha−1 yr−1). The value obtained for primary forest was similar to those reported elsewhere in Brazil (mean = 8 t ha−1 yr−1) and from other regions of S. America (mean = 7.20 t ha−1 yr−1). Prediction of net primary production from litterfall at the primary forest site gave rise to values of 14.47 and 26.53 t ha−1 yr−1. Estimates of net primary production in ‘capoeira' ranged from 9.07 to 16.63 t ha−1 yr−1. Seasonality of litterfall was more marked in ‘capoeira' than primary forest but in both cases was less pronounced than elsewhere in Brazil. Nutrient concentrations were highest in ‘capoeira' litter, a finding which accords with results from other tropical sites; nevertheless input of nutrients per unit area of forest floor was greatest in the primary forest. Copyright © Cambridge University Press 1989 Amazonia nationallicence Brazil nationallicence ‘capoeira' nationallicence litter nationallicence litter nutrient content nationallicence primary forest nationallicence tropical rain forest nationallicence Dantas Mario Animal Ecology Research Group, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, England Phillipson John Animal Ecology Research Group, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, England Journal of Tropical Ecology Cambridge University Press 5/1(1989-02), 27-36 0266-4674 5:1<27 1989 5 TRO https://doi.org/10.1017/S0266467400003199 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0266467400003199 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dantas Mario Animal Ecology Research Group, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, England NATIONALLICENCE 700 1- Phillipson John Animal Ecology Research Group, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, England NATIONALLICENCE 773 0- Journal of Tropical Ecology Cambridge University Press 5/1(1989-02), 27-36 0266-4674 5:1<27 1989 5 TRO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge