Results 121 to 130 of about 793 (167)
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A congregating of worms and woodlice
Trabajos de Estadistica, 1960En este articulo se estudia el movimiento de gusanos y carcoma. En sintesis, el problema puede reducirse al siguiente: A un plato grande y circular, de vidrio, se le divide en sectores y se coloca un animal en el centro de cada sector; el plato se coloca a lo largo de un diametro, se cubre el plato durante un corto tiempo y despues se descubre ...
Barton, D. E., David, F. N.
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‘Weber's Glands’ and Respiration in Woodlice
Nature, 1950THE view has long been held that certain tegumental glands in woodlice, known as ‘Weber's glands’, play an important part in respiration, and have been evolved in adaptation to terrestrial life. This conception appears to be wholly mistaken. It seems to have originated in a misreading of the literature, and although widely accepted there is little ...
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Animal Behaviour, 1964
Abstract 1. 1. It is shown experimentally that locomotion is influenced by external contact. 2. 2. Thigmokinetic reactions are part of the behaviour pattern and distinct from humidity reactions though their effects may be similar. 3. 3. Thigmokinetic behaviour varies with the species and with relative humidity.
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Abstract 1. 1. It is shown experimentally that locomotion is influenced by external contact. 2. 2. Thigmokinetic reactions are part of the behaviour pattern and distinct from humidity reactions though their effects may be similar. 3. 3. Thigmokinetic behaviour varies with the species and with relative humidity.
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Biological Reviews, 1954
SummaryA comparative study of woodlice which show different degrees of fitness for terrestrial life provides information about the evolution of land faunas and underlines the significance of water relations in this respect.Species of woodlice differ as regards rates of transpiration and survival in dry air.
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SummaryA comparative study of woodlice which show different degrees of fitness for terrestrial life provides information about the evolution of land faunas and underlines the significance of water relations in this respect.Species of woodlice differ as regards rates of transpiration and survival in dry air.
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Evidence for heterosis in woodlice
Journal of Genetics, 1962As analysis of Howard’s data on the genetics ofArmadillidium vulgare gives strong evidence in favour of the view that heterozygotes are generally more viable than homozygotes in early life.
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The Body Temperature of Woodlice
Journal of Experimental Biology, 1951ABSTRACT Measurements by means of thermocouples, accurate to 0.1° C., were made of the body temperature of the woodlice Armadillidium, Porcellio, Oniscus and Ligia, and of the cockroach Blatta, both alive and dead, in a stream of saturated or dry air at both 20 and 37° C.
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Cutaneous Respiration in Woodlice
Journal of Experimental Biology, 1955ABSTRACT Oxygen uptake and carbon dioxide output were measured in the woodlice Ligia oceanica, Oniscus asellus, Porcellio scaber and Armadillidium vulgare, in moist and in dry air, using normal animals and animals whose pleopods had been blocked by emulsion paint. In moist air, the rate of oxygen uptake which occurred through the general
E. B. Edney, J. O. Spencer
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Nature, 1961
THE structure and function of the rectal glands of insects have been investigated by several workers1. Later, Wigglesworth2 studied these glands more thoroughly in a number of species. No report, however, has yet appeared in the literature regarding the presence of rectal glands in woodlice (Crustacea : Isopoda), although Edney3 stated : “the faecal ...
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THE structure and function of the rectal glands of insects have been investigated by several workers1. Later, Wigglesworth2 studied these glands more thoroughly in a number of species. No report, however, has yet appeared in the literature regarding the presence of rectal glands in woodlice (Crustacea : Isopoda), although Edney3 stated : “the faecal ...
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Nature, 1945
SOME little time ago I published a note on the duration of life of certain species of woodlice1 which had been studied by Major Stanley S. Flower and me, and it was there recorded that Major Flower had kept a specimen of Oniscus asellus Linn, (born in captivity) for approximately 4 years 8 months and 28 days or possibly 4 years 9 months 20 days. My own
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SOME little time ago I published a note on the duration of life of certain species of woodlice1 which had been studied by Major Stanley S. Flower and me, and it was there recorded that Major Flower had kept a specimen of Oniscus asellus Linn, (born in captivity) for approximately 4 years 8 months and 28 days or possibly 4 years 9 months 20 days. My own
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Benefits of aggregation in woodlice: a factor in the terrestrialization process?
Insectes Sociaux, 2013In the animal kingdom, living in group is driven by a tradeoff between the costs and the benefits of this way of life. This review focuses especially on the benefits of aggregation and crowding in woodlice (Crustacea: Isopoda: Oniscidea). Indeed, woodlice are well known to live in groups.
Cedric Dévigne
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