Are neotropical predictors of forest epiphyte–host relationships consistent in Indonesia?

R M Hayward; T E Martin; T M A Utteridge; A H Mustari; Andrew R Marshall

doi:10.1017/S0266467416000626

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Are neotropical predictors of forest epiphyte–host relationships consistent in Indonesia?

Journal article

Open access

Peer reviewed

Are neotropical predictors of forest epiphyte–host relationships consistent in Indonesia?

R M Hayward, T E Martin, T M A Utteridge, A H Mustari and Andrew R Marshall

Journal of Tropical Ecology, Vol.33, pp.178-182

2017

DOI: https://doi.org/10.1017/S0266467416000626

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Abstract

canopy

epiphytes

palaeotropics

phorophytes

rain forest

Sulawesi

Epiphytes represent keystone resources for many arthropod and vertebrate species, however their ecology remains poorly explored, especially within the palaeotropics. Several recent studies have examined relationships between epiphyte richness and characteristics of local habitats, although these have all focused on neotropical forests. Here, we aim to determine whether predictors of neotropical epiphyte richness are consistent at a palaeotropical site. A total of 44 host trees (dbh range 25-288 cm) were sampled at two study sites on Buton Island, Indonesia. For each tree, epiphyte richness and seven variables relating to characteristics of the host tree and surrounding habitats were recorded: site (a proxy value for disturbance level and water availability), host above-ground biomass (agb), altitude, bark texture, exposure, emergence and crown area. Gaussian GLM analyses indicated that the percentage deviance explained in epiphyte richness per host was greatest for agb (20.9%), crown area (19.6%) and site (15.5%); similar to previous findings from the neotropics. Results therefore suggest that high epiphyte diversity within palaeotropical forests is most likely to be found in large tracts of undisturbed forest, supporting large, broad-crowned trees.

Details

Title: Are neotropical predictors of forest epiphyte–host relationships consistent in Indonesia?
Authors: R M Hayward (Author) - University of York, United Kingdom
T E Martin (Author) - Wallace House, United Kingdom
T M A Utteridge (Author) - Royal Botanical Gardens, United Kingdom
A H Mustari (Author) - Kampus Fahutan, Indonesia
Andrew R Marshall (Author) - University of York, United Kingdom
Publication details: Journal of Tropical Ecology, Vol.33, pp.178-182
Publisher: Cambridge University Press
Date published: 2017
DOI: 10.1017/S0266467416000626
ISSN: 0266-4674
Copyright note: Copyright © 2017 The Authors. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher. The final definitive version is available at: http://dx.doi.org/10.1017/S0266467416000626
Organisation Unit: Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Forest Research Institute
Language: English
Record Identifier: 99450415602621
Output Type: Journal article

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