NDLI: Correlation between the leaf turnover rate and anti-herbivore defence strategy (balance between ant and non-ant defences) amongst ten species of Macaranga (Euphorbiaceae)

Content Provider	Springer Nature Link
Author	mura, Masahiro Hatada, Aya Itioka, Takao
Copyright Year	2010
Abstract	We measured variation in the intensities of ant and non-ant anti-herbivore defences amongst ten Macaranga species in Sarawak, Malaysia. Intensities of non-ant defences were estimated by measuring effects of fresh leaves (provided as food) of these Macaranga species on survival of common cutworm larvae [Spodoptera litura (Fabricius), Lepidoptera: Noctuidae]. Intensities of ant defences were estimated by measuring ant aggressiveness in the presence of artificial damage inflicted on plants. As part of our examination of non-ant defences, we measured leaf toughness (punch strength, by penetrometry), and the contents of total phenols and condensed tannin. We demonstrated interspecific variation in intensities of both ant and non-ant defences amongst ten Macaranga species and showed that the rank order of ant defence intensity was negatively correlated with the intensity of non-ant defence. We also found that the balance between ant and non-ant defence intensity was correlated with the rates of leaf turnover and shoot growth. Species investing more in ant defence tended to have higher leaf turnover rates. Macaranga species that occur preferentially in shadier microhabitats had lower leaf turnover rates, suggesting that non-ant defences are more cost-effective in more shade-tolerant species. Our results also suggest that the total intensity of non-ant defences is positively correlated with both leaf toughness and total phenol content.
Starting Page	143
Ending Page	155
Page Count	13
File Format	PDF
ISSN	13850237
Journal	Plant Ecology
Volume Number	212
Issue Number	1
e-ISSN	15735052
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-07-10
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ant–plant mutualism Herbivore–plant interactions Myrmecophyte Sarawak Borneo South East Asian tropics Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science

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