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Chemical defense by the native winter ant (Prenolepis imparis) against the invasive Argentine ant (Linepithema humile)


, : Chemical defense by the native winter ant (Prenolepis imparis) against the invasive Argentine ant (Linepithema humile). Plos One 6(4): E18717-E18717

The invasive Argentine ant (Linepithema humile) is established worldwide and displaces native ant species. In northern California, however, the native winter ant (Prenolepis imparis) persists in invaded areas. We found that in aggressive interactions between the two species, P. imparis employs a potent defensive secretion. Field observations were conducted at P. imparis nest sites both in the presence and absence of L. humile. These observations suggested and laboratory assays confirmed that P. imparis workers are more likely to secrete when outnumbered by L. humile. Workers of P. imparis were also more likely to secrete near their nest entrances than when foraging on trees. One-on-one laboratory trials showed that the P. imparis secretion is highly lethal to L. humile, causing 79% mortality. The nonpolar fraction of the secretion was chemically analyzed with gas chromatography/mass spectrometry, and found to be composed of long-chain and cyclic hydrocarbons. Chemical analysis of dissected P. imparis workers showed that the nonpolar fraction is derived from the Dufour's gland. Based on these conclusions, we hypothesize that this chemical defense may help P. imparis to resist displacement by L. humile.

US$19.90

PMID: 21526231

DOI: 10.1371/journal.pone.0018717


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Sharma, N.D.; Jain, A.C., 1977: Three new leaf-spot diseases of Kalanchoe spp. Glomerella cingulata, Bartalinia robillardoides and Myrothecium roridum were isolated from leaf spots on various K. spp.; none of the diseases has been recorded previously from India.

Holding, C.; Carsan, S.; Njuguna, P., 2006: Smallholder timber and firewood marketing in the coffee and cotton/tobacco zones of eastern Mount Kenya. Recent analysis on tree management by farmers has moved away from the needs -based and conservation approaches that dominated much of the earlier work, and instead examines tree management in terms of farmer livelihood strategies and the dynamics...

Adeloye, A., 1976: The nurse and the operating theatre: past, present and future. Nigerian Nurse 8(2): 18-22

Iordansky, N.N., 1971: Cranial kinesis in the evolution of reptiles.Zh. obshch. Zhurnal obshch: 348-365

Stocker, J.; Mawad, R.; Deleon, A.; Desjardins, P., 1975: Ultrasonic cephalometry: Its use in estimating fetal weight. Data on 100 consecutive patients delivering within 1 week after ultrasonic cephalometry measurement were reviewed to assess the weight-predicting potential of three known formulas. With Thompson's formula, 78% of infant weights fell within a...

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Yochelson Ellis L.; Osborne W.E.ward, 1998: The unknown Cooper Curtice and Cambrian fossils of Alabama. Abstracts with Programs - Geological Society of America 30(4): 67

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