Utilization of body reserves for minim brood development by queens of the imported fire ant, Solenopsis invicta

Toom, Paul M.; Cupp, Eddie W.; Johnson, Charles P.; Griffin, Ina

doi:10.1016/0022-1910(76)90028-7

Cited by 26 publications

(9 citation statements)

References 7 publications

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“…Compared with hibernation, nest founding had a much stronger effect on fat reserves (fat loss: 38% of the prehibernation level). A loss of fat reserves during the founding period is consistent with studies on foundress queens of different ant species (Martinez and Wheeler, 1994;Toom et al, 1976;Wheeler and Buck, 1996). However, compared with fat loss of approximately 90% in ant queens during claustral colony founding (Wheeler and Buck, 1996), the loss of fat of L. malachurum queens seems comparatively low.…”

Section: Depletion Of Fat Reservessupporting

confidence: 72%

“…In accordance with studies on ant queens during claustral nest founding (Martinez and Wheeler, 1994;Toom et al, 1976;Wheeler and Buck, 1996), we hypothesized that solitary nest founding should be the most challenging phase for foundresses. This view is supported by the observation that on average 29.7% of nest initiations fail, i.e., do not produce a first worker brood .…”

Section: Introductionmentioning

confidence: 65%

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Availability and depletion of fat reserves in halictid foundress queens with a focus on solitary nest founding

et al. 2011

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Foundress queens of social Hymenoptera require considerable amounts of energy for survival, solitary nest founding, provisioning of the first brood, and egg production. Energy reserves in insects mostly consist of fat. We investigated how hibernation and the subsequent flight season, especially the solitary nest founding phase, influenced the abdominal fat content of gynes in the primitively eusocial sweat bee, Lasioglossum malachurum (Hymenoptera, Halictidae). In our study population, sexuals are produced in both the second and the third broods. Emerging gynes of the third brood had significantly more fat than those of the second brood, whereas there was no such difference in males. As expected, fat reserves in samples of female sexuals caught at emergence, after hibernation, during solitary nest founding, and at the end of the social phase of the nest cycle indicate a severe decrease of reserves that was highest during the 7 weeks of the solitary founding phase. Thus, the amount of fat reserves of foundress queens seems to be crucial, particularly for nest founding. However, investment of energy reserves in the solitary nest founding phase has probably to be balanced with the subsequent social phase in a way that maximizes the queen's fitness. Possible consequences for the complexity and progress of the nest cycle are discussed.

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Section: Depletion Of Fat Reservessupporting

confidence: 72%

Section: Introductionmentioning

confidence: 65%

Availability and depletion of fat reserves in halictid foundress queens with a focus on solitary nest founding

et al. 2011

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“…The lack of isolation by distance among colonies of the M form within Taoyuan was not unexpected given that most M queens take part in aerial mating flights, often dispersing several kilometers or more before landing and attempting to found a new nest (Toom et al, 1976;Ross and Fletcher, 1985b;Ross et al, 1999). Such longdistance dispersal is predicted to erase any signature of nuclear differentiation among closely spaced nests.…”

Section: Patterns Of Isolation By Distancementioning

confidence: 99%

Population genetic structure of the red imported fire ant, Solenopsis invicta, in Taiwan

Yang

Shoemaker

et al. 2007

Insect. Soc.

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We generated and analyzed microsatellite genotypic data and mtDNA sequence data from the fire ant Solenopsis invicta collected from two separate infested areas (Taoyuan and Chiayi) in Taiwan to infer the population and colony structure of these recently established populations. These genetic analyses revealed the following patterns: 1) Relatedness among worker nestmates was significantly greater than zero for both social forms from both populations; 2) No significant isolation by distance was found among nests within each social form from either population; 3) Significant mtDNA but no nuclear differentiation occurs between sympatric social forms in Taoyuan; 4) Molecular signatures of genetic bottlenecks associated with recent introductions are evident in both populations; and 5) The two sampled populations, Taoyuan and Chiayi, are highly genetically differentiated at both the nuclear or mtDNA genomes and most likely derive from two separate introductions into Taiwan. While results from these analyses generally were consistent with predictions based on the known biology of these ants and similar studies of S. invicta in the U.S.A. and South America, some patterns likely reflect the recent introduction and human-mediated inadvertent transport of ants in Taiwan. This is the first study to investigate the population and colony structure of fire ants in Taiwan and results from our study represent an important contribution to the ongoing efforts aimed at eradicating this invasive pest in Taiwan.

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“…Young M queens acquire extensive nutrient reserves essential for long-distance mating flights and independent colony foundation (Toom et a!., 1976). Young P queens generally acquire far fewer reserves and forego attempts at independent nest foundation, instead seeking adoption into their own or another P nest (Keller & Ross, 1993a;Ross & Keller, 1995).…”

Section: Discussionmentioning

confidence: 99%

“…The two forms differ in many features of their social biology expected to affect gene flow patterns within and between them (Ross & Keller, 1995). For instance, M queens disperse widely during mating flights and found new colonies without workers (independently), relying on extensive nutrient reserves acquired during adult maturation (Toom et a!., 1976). In contrast, P queens mate in the natal nest, where they attempt to become egg layers, or they participate in mating flights and seek adoption into other P nests (Glancey & Lofgren, 1988;Porter, 1991), and they do not acquire extensive reserves (Porter et al, 1988;Keller & Ross, 1993a).…”

Section: Introductionmentioning

confidence: 99%

Nuclear and mitochondrial genetic structure in two social forms of the fire ant Solenopsis invicta: insights into transitions to an alternate social organization

Ross

Shoemaker

1997

Heredity

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We describe genetic structure at microgeographical scales in two social forms of the introduced fire ant Solenopsis invicta using nuclear and mitochondrial markers. Fire ant populations in northern Georgia, U.S.A. are structured in fundamentally different ways at the two genomes. Virtually all nuclear genetic variation resides within sampling sites; no differentiation was apparent between the social forms and only minimal differentiation was found among sites in only one social form (the polygyne form, which has nests with numerous queens). In contrast, substantial mtDNA variation exists at all levels; the forms are significantly differentiated and strong divergence was detected among sites in the polygyne form. No mtDNA differentiation was found among sites in the monogyne form (which has nests with a single queen), These results are predicted on the basis of the social biology of the ants. Monogyne queens and males of both forms presumably disperse widely, and polygyne queens commonly mate with monogyne males, thus explaining the uniformity of nuclear allele frequencies across sampling sites and between the forms. Polygyne queens display habits consistent with limited dispersal, and queens of both forms seem unable to establish themselves as reproductives in nests of the alternate form, thus explaining the strong microgeographical structure within the polygyne form and differentiation between the forms found using mtDNA markers. The mtDNA haplotypes are distributed among sites in a manner that suggests a mechanism for the spread of polygyny in introduced fire ants. Monogyne queens apparently mate occasionally with polygyne males and acquire a Mendelian nuclear factor allowing the expression of polygyny in their sexual daughters.

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Utilization of body reserves for minim brood development by queens of the imported fire ant, Solenopsis invicta

Cited by 26 publications

References 7 publications

Availability and depletion of fat reserves in halictid foundress queens with a focus on solitary nest founding

Availability and depletion of fat reserves in halictid foundress queens with a focus on solitary nest founding

Population genetic structure of the red imported fire ant, Solenopsis invicta, in Taiwan

Nuclear and mitochondrial genetic structure in two social forms of the fire ant Solenopsis invicta: insights into transitions to an alternate social organization

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