The Formation and Biological Significance of Aggregations in the Distribution of Collembola

Joosse, Els N. G.

doi:10.1163/002829670x00132

Cited by 62 publications

(32 citation statements)

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“…Typically, males produce aggregation pheromones, but there are several exceptions (Jiang et al ., ; Judd & Borden, ; Wertheim et al ., ). Insect response to an aggregation pheromone is known to be largely affected by physiological state (e.g., hunger, mating condition, age, and molting cycle) and extrinsic factors (e.g., time of day, season, density of conspecifics of same or opposite sex, and temperature) (Aller & Cladwell, ; Bartelt & Jackson, ; Joosse, ; Lorenzo Figuerias et al ., ; Mayhew & Phillips, ; Schaner et al ., ). Many species are known to respond to aggregation pheromones when they are accompanied by odors of food or breeding substrates or other coattractants (Phillips and Burkholder, ; Ramirez‐Lucas et al ., ; Wertheim et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Chemical and behavioral analysis of the cuticular hydrocarbons from Asian citrus psyllid, Diaphorina citri

et al. 2012

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Huanglongbing (HLB) is the most destructive disease of citrus worldwide. The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), is the vector of the phloem-inhabiting bacterium, Candidatus Liberibacter asiaticus, which is presumed to cause HLB in Florida citrus. Laboratory and field studies were conducted to examine the behavioral responses of male and female D. citri to their cuticular extracts. In olfactometer assays, more male D. citri were attracted to one, five, or 10 female cuticular extract equivalent units than blank controls. The results were confirmed in field studies in which clear or yellow traps baited with 10 female cuticular extract equivalent units attracted proportionately more males than clear traps baited with male cuticular extract or unbaited traps. Analyses of cuticular constituents of male and female D. citri revealed differences between the sexes in chemical composition of their cuticular extracts. Laboratory bioassays with synthetic chemicals identified from cuticular extracts indicated that dodecanoic acid attracted more males than clean air. Traps baited with dodecanoic acid did not increase total catch of D. citri as compared with blank traps at the dosages tested; however, the sex ratio of psyllid catch was male biased on traps baited with the highest lure loading dosage tested (10.0 mg).

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Section: Discussionmentioning

confidence: 99%

Chemical and behavioral analysis of the cuticular hydrocarbons from Asian citrus psyllid, Diaphorina citri

et al. 2012

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“…Even though aggregation has been demonstrated to have a high survival value in the field (Joosse, 1970;Verhoef and Nagelkerke, 1977), the accumulation of a molecular signal occurs just because an animal remains for enough time at the same place (Usher and Hider, 1975;Verhoef et al, 1977b;Leonard and Bradbury, 1984), which does not occur when this place is unfavourable (pH < 4).…”

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confidence: 99%

Ionic identity of pore water influences pH preference in Collembola

Salmon¹,

Ponge²,

Straalen

2002

Soil Biology and Biochemistry

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A test system described by Van Straalen and Verhoef (1997) was used in order to check whether the endogeic Collembolan Heteromurus nitidus was repelled by acid pH. In each of eight experimental runs sixteen naive animals were allowed to select sectors in a circular pH gradient made of pure quartz sand impregnated with McIlvaine's buffer solutions at constant osmolarity. Disodium or dipotassium hydrogen phosphate was mixed with citric acid in varying proportions, giving rise to acidity levels ranging from pH 2 to pH 9. The animals reacted quite differently according to whether Na or K was used as the metallic cation. With potassium, a strong variation was observed from one experimental box to another, H. nitidus aggregating at pH levels varying from 4 to 8, the most frequent aggregation being observed at pH 6. With sodium, aggregation occurred over a more restricted range, from pH 7 to pH 9, most frequent aggregation being at pH 8. It was concluded that the most acidic pH range (2-3) was avoided by the animals and that the chemical composition of buffer solutions strongly influenced results of pH-preference tests. If we consider that i) the absence of H. nitidus from acid soils (pH 5 to 3.5) can be explained by biological rather than by chemical effects, ii) this species can be cultured in acid as well as alkaline soils in the absence of predators, it ensures that potassium gives results that are more representative of the distribution of H. nitidus according to soil acidity than sodium.

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“…Soil moisture strongly influences the distribution and abundance of Collembola ( Verhoef & Witteveen, 1980; Verhoef & van Selm, 1983). Patchily distributed soil water may even contribute to the formation of aggregations ( Joosse, 1970), a mechanism strengthened by the orthokinetic reaction of springtails in humidity gradients ( Joosse & Groen, 1970). Some Collembola (including Onychiurus spp.…”

Section: Discussionmentioning

confidence: 99%

Temperature and the hygropreference of the Arctic Collembolan Onychiurus arcticus and mite Lauroppia translamellata

Hayward

Worland

Bale

et al. 2000

Physiological Entomology

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The hygropreference of adult Onychiurus arcticus (Tullberg) was investigated over 2 h at 0, 10 and 20°C, along humidity gradients (12±98% RH) established using different salt solutions. At all temperatures O. arcticus preferred the highest humidity (98% RH). At 0 and 20°C, saturated conditions were preferred to 98% RH. The hygropreference of the mite Lauroppia translamellata (Willmann) was also assessed at 20°C, and no clear RH preference was observed. This species survived the loss of 24.9 6 2.1% of its initial water content when held for 24 h at 20°C and 12% RH. A range of assays designed to eliminate the in¯uence of thigmotactic behaviour and population clumping permit exclusion of these factors as being responsible for the observed results. The mean initial water content of O. arcticus samples (71.7 6 10.9, 73.4 6 4.0 and 73.8 6 23.5% at 0, 10 and 20°C, respectively) did not differ signi®cantly between temperatures, indicating that the results were not in¯uenced by differences in initial hydrated state. The percentage water loss of individuals within the gradient increased with temperature, and differed signi®cantly between regimes. The ecological signi®cance of the observed humidity preferences are discussed.

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The Formation and Biological Significance of Aggregations in the Distribution of Collembola

Cited by 62 publications

References 0 publications

Chemical and behavioral analysis of the cuticular hydrocarbons from Asian citrus psyllid, Diaphorina citri

Chemical and behavioral analysis of the cuticular hydrocarbons from Asian citrus psyllid, Diaphorina citri

Ionic identity of pore water influences pH preference in Collembola

Temperature and the hygropreference of the Arctic Collembolan Onychiurus arcticus and mite Lauroppia translamellata

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