(n. pl.) The division of Thysanura which includes Podura, and allied forms.
Example Sentences:
(1) The radiocarbon level of prey animals was about 100 times higher than that of their predators, but there was only small difference in concentration between collembolas and yeast.
(2) Correlations with other arthropods suggest that Mesostigmata are opportunistic predators, preying upon dipteran larvae, Collembola and other mites, and preyed upon by larger predatory insect larvae.
(3) This was probably because of a faster excretion of the chemical by the beetles than by the collembolas.
(4) During the test period no conversion of [14C]PCP-Na took place in the yeast, but the collembolas and beetles metabolized 50 and 59%, respectively.
(5) The density of total microarthropods and major groups, namely Acarina and Collembola, suffered a statistically significant and persistent decline in the aldrin 30 EC (0.25%)- and endosulfan 35 EC (0.33%)-treated soil of wheat fields.
(6) baker's yeast, collembola, and carabid beetles, and the contaminant chemical introduced was via initial food.
(7) The midgut cells of Tomocerus minor (Insecta, Collembola) were examined with the electron microscope and cytochemically.
(8) Collembola under natural conditions are supposed to be intermediate hosts of cestodes of A. arctica, parasites of reindeer.
(9) Collembola Bilobella aurantiaca lives in forest biotopes all around the western Mediterranean sea; it shows a great polymorphism of polytene Chromosomes (2n = 14).
(10) Soil-inhabiting arthropods such as Collembola, Cryptostigmata and termites as indicators of various environmental gradients and air pollution, being considered both as biotic indices and bioassay monitors, are reported and discussed.
(11) Population differentiation in Orchesella cincta (L.) (Collembola) populations, from various heavy metal contaminated sites, was studied by comparing cadmium excretion efficiency in first generation (F1) laboratory individuals.
(12) A brief description of larvae of cestodes of A. arctica at their different developmental stages in experimentally infected collembola Onychiurus (Protaphorura) taimyrica and O.
Springtail
Definition:
(n.) Any one of numerous species of small apterous insects belonging to the order Thysanura. They have two elastic caudal stylets which can be bent under the abdomen and then suddenly extended like a spring, thus enabling them to leap to a considerable distance. See Collembola, and Podura.
Example Sentences:
(1) Results indicate that a 20-ng dose of cefodizime on alternate days may shorten an infradian period (of molt) in the springtail.
(2) A third-generation cephalosporine, cefodizime, was tested in two experiments on the springtail, Folsomia candida, used as a model of infradian rhythmicity.
(3) in snails, from 3 to 0.6 micrograms g-1, in springtails from 5 to 105; in beetles (Amara fusca) from 3 to 1, in spiders from 13 to 11, and in harvestman from 31 to 77 micrograms g-1.
(4) The effect of shifts at different intervals of a regimen of quasioptimal and nonoptimal ambient temperatures alternating at 12-hr intervals was tested on the springtail, Folsomia candida.
(5) Our own studies of Folsomia candida at 23 degrees C show that the incidence of molting in 24 springtails observed at 3-hr intervals for 17 days is characterized by a prominent circadian rhythmicity and an infradian periodicity with a period of about 3 days.
(6) Microflora (bacteria and fungi), microfauna (including nematodes and the protozoa living in the water films around soil pores) and mesofauna (such as mites and springtails), can't possibly be 'transplanted' from one place to another and areas rich in obvious ecological value such as forests are likely to also be high in diversity and complexity at this level.
(7) A reanalysis of data published earlier indicates that the springtail, Folsomia candida, kept in continuous darkness, lengthens its intermolt interval (stadia) with age.