How To Use Collembola In A Sentence
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Springtails (Collembola) of Eurasian polar deserts.
Arctic environments north of the treeline
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Both the lepidopteran and the trichopteran branches are relatively long and share a common node, a different situation from the plecopteran and the collembolan branches.
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In many of the bootstrap analyses, node A is disrupted because the long plecopteran branch joins with the long collembolan branch, and this attraction is reduced under the more complex models.
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Collembola: an ordinal term applied to species which are apterous; have no metamorphoses; have variably developed abdominal saltatorial appendages and a peculiar ventral tube at base: the spring-tails.
Explanation of Terms Used in Entomology
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Anal operculum: the dorsal arch of the 10th abdominal segment; in caterpillars = supra-anal plate, q.v. Anal organs: Collembola; the two modified hairs arising from a tubercle ventro-cephalad of the anus and usually curving caudo-dorsad.
Explanation of Terms Used in Entomology
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For example, one species of collembolan, Folsomia regularis, may constitute 60% of the total collembolan density in the polar desert [28].
Implications of current species distributions for future biotic change in the Arctic
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However, it is known that some species enter a reproductive diapause when reared at constant temperature in the laboratory (e. g., the collembolan Hypogastrura tullbergi), and that this diapause can only be terminated by exposure to cold.
Conservation of arctic species
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For example, one species of collembolan, Folsomia regularis, may constitute 60% of the total collembolan density in polar deserts.
Arctic environments north of the treeline
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There are a few terrestrial animals restricted to the high Arctic such as the sanderling (Calidris alba) and a common Collembola, Vertagopus brevicaudus.
Implications of current species distributions for future biotic change in the Arctic
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Moreover, there is experimental evidence that population densities of numerically dominant tundra Collembola (springtail) species such as '' Folsomia quadrioculata '' and '' Hypogastrura tullbergi '' can be halved following an episode of freezing rain on Spitzbergen [172].
Phenotypic responses of arctic species to changes in climate and ultraviolet-B radiation
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- Snow fleas are not really fleas, but belong to a group of primitive organisms called springtails (Collembola).
Rich Wolf: Boulder's Heart-Warming Fleas
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Ice-crust formation during the winter may increase winter mortality by 50% in Collembola [43].
Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term
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The collembolan Vertagopus brevicaudus a "steppe" species; bbizonal steppe and tundra species; cthis group characterizes the southern tundra subzone; dthis group is relatively small, but is valuable in subdividing the tundra zone into subzones.
Implications of current species distributions for future biotic change in the Arctic
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Lesser rearrangements, involving the reshuffling of tRNA genes, have been documented in honey bees, other hymenopterans, mosquitoes, collembolans, and an anostracan crustacean.
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Other noteworthy fauna include cave-dwelling species such as a collembolan Tricanthella frigida, an endemic found in Gavarnie cirque at 2,500 m, and coleopteran Tipnus unicolor and Speonomus bolivari.
Pyrenees-Mont Perdu, France and Spain
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Soil invertebrates such as Collembola [101] sometimes exhibit large interannual fluctuations in population density.
General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels
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In the past the collembolans, proturans and two other groups; the diplurans and the thysanurans were all grouped together as the apterygotes or the wingless insects.
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We must, indeed, in my opinion, separate them entirely from one another; and I would venture to propose for the group comprised in the old genus Podura, the term Collembola, as indicating the existence of a projection, or mammilla, enabling the creature to attach or glue itself to the body on which it stands.
Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses
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Mucrones: in Collembola the two small end pieces of the furcula, proceeding from the dentes.
Explanation of Terms Used in Entomology
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For small mobile animals (e.g., wingless soil invertebrates such as Collembola and mites), habitat selection on a very small spatial scale (microhabitat selection) enables individuals to find spatial refuges with temperature and moisture regimes adequate for survival [80].
General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels
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Four species of Collembola on Svalbard were investigated by Leinaas [175] with respect to UV-B radiation tolerance: '' Hypogastrura viatica '', '' Folsomia sexoculata '', '' Onychiurus groenlandicus '', and '' O. arcticus ''.
Phenotypic responses of arctic species to changes in climate and ultraviolet-B radiation
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Population dynamics of two collembolan species in an Arctic tundra.
Conservation of arctic species
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Collembolans and possibly other invertebrates have dark pigmentation that plays a role in both thermoregulation and UV-B radiation protection [89]
General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels
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Invertebrate stocks that colonized Ascension underwent a variety of evolutionary changes including phyletic evolution leading to endemic status, adaptation to subterranean life (Araneae, Pseudoscorpiones, Collembola, and Psocoptera), character release (phorid Diptera), and probably splitting of lineages (speciation) within the island (Isopoda, Collembola, and gryllid Orthoptera).
Ascension scrub and grasslands
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Species with rapid life cycles (aphids and Collembola) responded demographically more quickly than species (e.g., mites) with slow life cycles [40].
Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term
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Verhoef HA (1997) Cold hardiness in the collembolan
PLoS ONE Alerts: New Articles
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For small mobile animals (e.g., wingless soil invertebrates such as Collembola and mites), habitat selection on a very small spatial scale (microhabitat selection) enables individuals to find spatial refuges with temperature and moisture regimes adequate for survival [80].
General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels
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The matter focuses on an order of minuscule hexapods called collembolans, or springtails, which includes thousands of species.
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In the middle Devonian the first collembolans made their appearance, and by the Pennsylvanian, or late Carboniferous, winged insects were present, including the first mayflies and cockroaches.
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The matter focuses on an order of minuscule hexapods called collembolans, or springtails, which includes thousands of species.
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The collembolan Vertagopus brevicaudus a "steppe" species; bbizonal steppe and tundra species; cthis group characterizes the southern tundra subzone; dthis group is relatively small, but is valuable in subdividing the tundra zone into subzones.
Implications of current species distributions for future biotic change in the Arctic
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The abundance of Collembola declined at barren sites where higher temperatures also caused drought and mortality due to desiccation, whereas the abundance of Collembola increased at moister sites.
Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term
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The collembolan Vertagopus brevicaudus a "steppe" species; bbizonal steppe and tundra species; cthis group characterizes the southern tundra subzone; dthis group is relatively small, but is valuable in subdividing the tundra zone into subzones.
Implications of current species distributions for future biotic change in the Arctic
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Spatial and temporal variation in patch occupancy and population density in a model system of an arctic Collembola species assemblage.
General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels
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Catch: in Collembola, = tenaculum, q.v. Catenate: with longitudinal connected elevations like links in a chain.
Explanation of Terms Used in Entomology
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Mites are more resistant than Collembola to summer desiccation [41] and to anoxic conditions in winter due to ice-crust formation following episodes of mild weather [42].
Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term
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Other noteworthy fauna include cave-dwelling species such as a collembolan Tricanthella frigida, an endemic found in Gavarnie cirque at 2,500 m, and coleopteran Tipnus unicolor and Speonomus bolivari.
Pyrenees-Mont Perdu, France and Spain
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Collembola: an ordinal term applied to species which are apterous; have no metamorphoses; have variably developed abdominal saltatorial appendages and a peculiar ventral tube at base: the spring-tails.
Explanation of Terms Used in Entomology
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While conducting ecological inventories of 30 caves on the Colorado Plateau of northern Arizona, research by Wynne and Voyles has resulted in the discovery of at least 10 new species, including a new species of spider, a new genus of cave cricket (Family Rhaphidophoridae), possibly two new cricket species, a new barklouse (Psocoptera) species, a new beetle species, and possibly two new springtail species (Collembola).
Archive 2007-03-01
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Both the lepidopteran and the trichopteran branches are relatively long and share a common node, a different situation from the plecopteran and the collembolan branches.
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This appendage is, in fact, how Collembola were named, by combining the Greek words "coll," or glue, and "embol," meaning wedge.
Adirondack Daily Enterprise
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The oldest well-known fossil hexapod is called Rhyniella praecursor, a collembolan from the Early Devonian age Rhynie Chert.
