Incidence des facteurs écologiques sur le cycle annuel et l'activité saisonnière de la fourmi d'Argentine,Iridomyrmex humilis Mayr (Hymenoptera, Formicidae), dans la région d'Antibes

Benois, Alexandre; Lafont, Jean-Pierre; Marro, J. P.

doi:10.1007/bf02223196

Cited by 54 publications

(70 citation statements)

References 14 publications

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“…The first queen larvae were produced only after 24 days Of the 38 winged queens monitored, 36 (95%) succeeded in copulating with males in the nest. This is explained because in this species there is no mating flight (Newell and Barber, 1913;Markin, 1970;Benois, 1973) and mating usually occurs in the nest.…”

Section: Resultsmentioning

confidence: 99%

Queen Replacement in Dequeened Colonies of the Argentine Ant Iridomyrmex Humilis (Mayr)

Passera

Keller

Suzzoni

1988

Psyche: A Journal of Entomology

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Section: Resultsmentioning

confidence: 99%

Queen Replacement in Dequeened Colonies of the Argentine Ant Iridomyrmex Humilis (Mayr)

Passera

Keller

Suzzoni

1988

Psyche: A Journal of Entomology

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Section: Nest Associationsmentioning

confidence: 92%

“…Two studies, one in New Orleans, USA, and one in southern France report similar seasonal dynamics (Newell and Barber 1913;Benois 1973). Seasonal shifts in nest sites and nest number may track environmental conditions and food availability (Benois 1973;Holway and Case 2000). Argentine ants usually nest in the top 35 cm of the soil (Markin 1970;Heller 2004), so nest temperature and humidity can be highly variable.…”

Section: Nest Associationsmentioning

confidence: 92%

“…During the spring, aggregations are slowly abandoned and the ants disperse, budding into many smaller nests. In the hot, dry summers, population size increases and the ants are very active (Krushelnycky et al 2004) moving nest sites frequently (Benois 1973) and continuing to spread, by budding, into new areas. These newly budded nests remain linked together with trails.…”

Section: Nest Associationsmentioning

confidence: 99%

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Linking Temporal and Spatial Scales in the Study of an Argentine Ant Invasion

2006

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Our long-term study of an invasion of Argentine ants (Linepithema humile) in a 481-ha biological preserve in Northern California links multiple spatial and temporal scales. We have investigated, at local spatial scales of tens of meters, how nests spread and contract seasonally and from year to year. Microsatellite analysis shows population genetic structure on the scale of about 100 m. At the landscape scale, we have surveyed the spread and impact of Argentine ants in the biological preserve since 1993, and have found high variability both seasonally and from year to year. Here, we describe how seasonal patterns in nesting behavior at the local scale help to explain how the location of the invasion edge changes. Thus, the growth and spread of nests on the scale of tens of meters, from season to season, produce the dynamics of the invasion from year to year at the scale of hundreds of meters.

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“…Colonies of L. humile are highly polygynous; mating takes place within the nest and colonies reproduce by budding (Markin 1970;Benois 1973;Passera & Keller 1990). Despite intranidal mating, the inbreeding coefficient and relatedness between sexuals are not significantly different from zero (Kaufmann et al 1992).…”

Section: Linepithema Humilementioning

confidence: 99%

Mode of colony foundation influences the primary sex ratio in ants

Aron

Passera

1999

Animal Behaviour

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In ants, young queens can found new colonies independently (without the help of workers) or dependently (with the help of workers). It has been suggested that differences in the mode of colony founding strongly influence queen survival and colony development. This is because independent queens are constrained to produce a worker force rapidly, before they deplete their body reserves and to resist the intense intercolony competition during the founding stage. By contrast, queens that found colonies dependently remain with the workers, which probably results in a lower mortality rate and earlier production of reproductive offspring. Consequently, in species that found independently, queens of incipient colonies are expected to produce mostly worker brood by laying a lower fraction of haploid (male) eggs than queens in mature colonies; such a difference would not occur in species founding dependently. We compared the primary sex ratio (proportion of male-determined eggs) laid by queens in incipient and mature colonies of two ant species, Lasius niger and Linepithema humile, showing independent and dependent modes of colony founding, respectively. As predicted, L. niger queens of incipient colonies laid a lower proportion of haploid eggs than queens from mature colonies. By contrast, queens of L. humile laid a similar proportion of haploid eggs in both incipient and mature colonies. These results provide the first evidence that (1) the primary sex ratio varies according to the mode of colony foundation, and (2) queens can adjust the primary sex ratio according to the life history stage of the colony in ants.

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Incidence des facteurs écologiques sur le cycle annuel et l'activité saisonnière de la fourmi d'Argentine,Iridomyrmex humilis Mayr (Hymenoptera, Formicidae), dans la région d'Antibes

Cited by 54 publications

References 14 publications

Queen Replacement in Dequeened Colonies of the Argentine Ant Iridomyrmex Humilis (Mayr)

Queen Replacement in Dequeened Colonies of the Argentine Ant Iridomyrmex Humilis (Mayr)

Linking Temporal and Spatial Scales in the Study of an Argentine Ant Invasion

Mode of colony foundation influences the primary sex ratio in ants

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