Herbivory on planted dipterocarp seedlings in secondary logged forests and primary forests of Sabah, Malaysia

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Publication Type Journal Article
School or College College of Science
Department Biology
Creator Davidson, Diane W.
Other Author Howlett, Bruce E.
Title Herbivory on planted dipterocarp seedlings in secondary logged forests and primary forests of Sabah, Malaysia
Date 2001-03
Description Leaf defences, leaf nutritional quality and leaf expansion rates may vary with resource availabilities to plants. Such variation could affect rates of leaf loss to herbivores, particularly along the steep resource gradients in disturbed forests. Intraspecific and interspecific variation in leaf damage and leaf expansion rates were measured on dipterocarp seedlings planted into secondary forests 1, 5 and 15 y after logging, and in adjacent primary forest of Sabah, Malaysia. Herbivory rates or amounts of leaf damage were compared across habitats and species for expanding, recently expanded, and mature leaves of Shorea leprosula and Dryobalanops lanceolata (Dipterocarpaceae). In all four habitats, leaves of the faster growing S. leprosula sustained higher rates and amounts of leaf-area loss than did the tougher leaves of slower growing D. lanceolata. Expanding leaves accumulated more leaf-area loss per week than did mature leaves. In all habitats and in both species, more than 25% of expanding leaves disappeared entirely. Rates of leaf-area loss per week differed among habitats for expanding leaves but not for mature leaves. In a relatively open, 1-y-old logged forest, faster leaf expansion reduced the time leaves spent in the most vulnerable stage; however, in S. leprosula a greater rate of leaf area loss countered the shorter expansion time. Thus, leaves accumulated similar total damages across habitats, and herbivory did not produce differences among habitats in seedling growth or mortality. High levels of resources may increase both leaf palatability and leaf expansion rates, with counteracting effects on herbivory.
Type Text
Publisher Cambridge University Press
Journal Title Journal of Tropical Ecology
Volume 17
Issue 2
First Page 285
Last Page 302
DOI 10.1017/S0266467401001195
citatation_issn 0266-4674
Subject Danum Valley; Dipterocarp; Dryobalanops lanceolata; Herbivory rates; Leaf damage; Leaf expansion rates; Logged tropical forests; Secondary forests; Shorea leprosula
Subject LCSH Herbivores; Plants; Animal-plant relationships
Language eng
Bibliographic Citation Howlett, B. E. & Davidson, D. W. (2000). Herbivory on planted dipterocarp seedlings in secondary logged forests and primary forests of Sabah, Malaysia. Journal of Tropical Ecology, 17, 285-302.
Rights Management (c)Cambridge University Press doi:10.1017/S0266467401001195 http://dx.doi.org
Format Medium application/pdf
Format Extent 302,442 Bytes
Identifier ir-main,4945
ARK ark:/87278/s6q81xf5
Setname ir_uspace
ID 704610
Reference URL https://collections.lib.utah.edu/ark:/87278/s6q81xf5