Observations on the Ecology of Weaver Ants (Oecophylla smaragdina Fabricius) in a Thai Mangrove Ecosystem and Their Effect on Herbivory of Rhizophora mucronata Lam.

  title={Observations on the Ecology of Weaver Ants (Oecophylla smaragdina Fabricius) in a Thai Mangrove Ecosystem and Their Effect on Herbivory of Rhizophora mucronata Lam.},
  author={Joachim Offenberg and Sopon Havanon and Sanit Aksornkoae and Donald J. Macintosh and Mogens Gissel Nielsen},
ABSTRACT Ants of the genus Oecophylla are predators of other insects and are able to protect a variety of terrestrial plants against pest insects; however, observations on the ecology of these ants in mangrove forests are lacking. General observations on the ecology of Oecophylla smaragdina were carried out in a Thai mangrove forest to determine if these ants can protect their host plants in less favorable mangrove habitats. Leaf herbivory and the density of O. smaragdina ants were measured on… 

Host plants and associated trophobionts of the weaver ants Oecophylla spp. (Hymenoptera: Formicidae)

Examination of literature records of weaver ant host plants from 1900 to 2006 revealed that O. smaragdina-tended trophobionts were recorded associating with the ants on several crops but rarely considered to be pests, and the risk of trophOBionts associated with Oecophylla ants being pests is considered minimal.

Azteca instabilis ants and the defence of a coffee shade tree: an ant–plant association without mutual rewards in Chiapas, Mexico

In most cases, plants and arboreal ants form more passive associations, where ants nest in the natural cavities of branches or bark, or construct carton nests on plant substrates and the only reward plants offer these ants is the use of their substrates.

Enhancing the weaver ant, Oecophylla smaragdina (Hymenoptera: Formicidae), for biological control of a shoot borer, Hypsipyla robusta (Lepidoptera: Pyralidae), in Malaysian mahogany plantations

  • G. Lim
  • Biology, Environmental Science
  • 2007
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Lack of ant attendance may induce compensatory plant growth

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The utility of weaver ants (Oecophylla smaragdina Fabricius, 1775), and their potential in the control of agricultural pests, is highlighted. Comprehensive data on its habits, habitat requirements,

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The results suggest for the first time that the presence of O. longinoda has a detrimental effect on the abundance, reproductive success and possibly oviposition strategy of female parasitoids, which might be a delimiting factor in field conditions if both natural enemies are to be recommended for use within the same agro-ecosystem.

Food Preferences and Foraging Activity of Asian Weaver Ants, Oecophylla smaragdina (Fabricius) (Hymenoptera: Formicidae)

How the weaver ants respond to different types of foods and indirectly, forming a strategic foraging activity to maximise their food supplies for their colony is exhibited.

Temporal stability of a mosaic of two competitively exclusive arboreal ants in a tropical mangrove forest

It is suggested that the success of attempts to restore or conserve mangroves may be improved by long-term comparative studies of the effects of ants, including possible differences among species, in natural and artificially planted mangrove forests.

Using insect traps to increase weaver ant (Oecophylla longinoda) prey capture

Combining ant predation with insect trapping is a new approach potentially building increased returns to ant biocontrol and to ant entomophagy.



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The effect of native vegetation on the distribution of the green ant, Oecophylla smaragdina, and the main insect pests in cashew, Anacardium occidentale, plantations in tropical northern Australia

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Herbivory at a bird rookery was not significantly higher than elsewhere, indicating that nutrient enrichment of leaves did not stimulate herbvory at this site, and significant differences, dependent on tidal height, were found between seedlings and trees.

Spatial Variation in the Effect of Ants on Extrafloral Nectary Plant

Results show that the possession of extrafloral nectaries can lead to increased reproduction in Cassia fasciculata, and the strength of this effect was found to vary widely among local populations.

Life history of Aulacaspis marina Takagi and Williams(Hom., Coccoidea), a new pest of mangrove plantations in Indonesia, and its damage to mangrove seedlings

Scale insects of a newly described species, Aulacaspis marina Takagi and Williams, have killed a large number of mangrove saplings planted in abandoned shrimp ponds on Bali island, Indonesia, suggesting that the species has nine to 10 generations a year on B Indonesia where the temperatures are seasonally constant.

Nest site selection by ants in a flooded Mexican mangrove, with special reference to the epiphytic orchid Myrmecophila christinae

The distribution of the arboreal ant community plus a termite species of the genus Nasutitermes was inventoried on trees in a completely flooded mangrove forest of the Sian Ka'an Biosphere Reserve, Quintana Roo, Mexico, highlighting niche differentiation through the selection of nest sites among different types of shelter.

The ecological function of extrafloral nectaries : herbivore deterrence by visiting ants and reproductive output in Caryocar brasiliense (Caryocaraceae)

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Distribution of the ant (Hymenoptera: Formicidae) fauna in the canopy of the mangrove tree Sonneratia alba J. Smith in northern Australia

The distribution and density of the ant fauna in the canopy of the mangrove tree Sonneratia alba J. Smith were investigated in Darwin Harbour, Australia and it was assumed that the queens die shortly after colony founding and that the workers take over reproduction through some sort of thelytokous parthenogenesis.