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NUITFRANCE - Bibliothèque - Fiche bibliographique
Bibliothèque
Cette rubrique recense :
- de la documentation sur les différents thèmes de la nuit (vie nocturne, pollution lumineuse, pollution sonore, ...).
- les données informatiques relatives à l'éclairage public digitalisées et mises à dispositions en open data par certaines communes,
Fil d'Ariane : Accueil >> Bibliothèque >> Fiche bibliographique
Permalien : http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique
Quelques tags associés : [ DOCUMENTATION, PUBLICATIONS, LITTÉRATURE, CONNAISSANCES, LITTÉRATURE GRISE, ARTICLES DE PRESSE, ARTICLES SCIENTIFIQUES, TEXTES JURIDIQUES, PLANS ET PROGRAMMES, JURISPRUDENCE, DÉCRETS, THÈSES ]
► Fiche bibliographique
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Document " Analysis of Mass Bird Mortality in October, 1954 "
Type de document : |
Articles de revue scientifique |
Thème du document : |
Nuit menacée - Lumière artificielle - Impacts généraux sur la biodiversité |
Groupe biologique : |
Oiseaux hors rapaces nocturnes |
Auteur(s) : |
JOHNSTON D.W.
HAINES T.P.
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Date de publication : |
Octobre 1957 |
Langue : |
English/Anglais |
Nom du périodique : |
The Auk |
Précisions : |
Volume 74. Numéro 4. Pages 447-458 |
Lien contenu/source : |
https://sora.unm.edu/sites/default/files/journals/... |
Citation courte : |
Johnston & Haines (1957) |
Citation complète (format NuitFrance) : |
JOHNSTON D.W. & HAINES T.P. (1957). Analysis of Mass Bird Mortality in October, 1954. The Auk. Volume 74. Numéro 4. Pages 447-458. |
Résumé du document : |
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Various experiments were conducted in a small Minnesota stream to determine the effect of light intensity on the circadian rhythms in drift of two aquatic invertebrates, the nymph of the mayfly Baetis vagans McDunnough and the amphipod Gammarus pseudolimnaeus Bousfield. Experiments included 1) artifical light in an exclosure which insured that experimental conditions were applied only to the organisms on the stream bottom area in the exclosure, 2) artificial light in the open stream, and 3) artificially produced darkness in an exclosure. A threshold of light intensity which, decreasing, initiated high drift rates and which, increasing, caused cessation of drift, was about 0.1 ft—c (1 lux) for both species. Continuous artificial light above the threshold level for an entire night period, and also for 4 consecutive days, depressed the normal high nocturnal drift rates in the exclosure to near daytime levels; on the fifth night in the exclosure, in darkness, drift was much higher than normal. Continuous artifical light for an entire night period on an open stream riffle also greatly depressed noctural drift. In another open stream experiment, in which organisms drifted from darkness onto a lighted riffle, some settled to the bottom as evidenced by depressed nocturnal drift rates, while other drifted through the light and off the riffle. The effect of shortened and lengthened night periods, produced by artificial light and darkness respectively, was to shift the circadian pattersn of drift correspondingly. Rapidly alternating periods (15 min) of light and darkness in the exclosure produced correspondingly alternating drift, with drift rates high in darkness and low in light. When the normal day—night cycle of light was reversed with artificial light and darkness, the phases of the circadian rhythm in drift were also reversed. Observed circadian rhythms in drift appear exogenously controlled; if an endogenous rhythm exists at all, it is very weak and is influenced strongly by environmental light conditions.
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Saisie sur NuitFrance par : |
Rosor |
Saisie sur NuitFrance en : |
Octobre 2014 |
Identifiant NuitFrance : |
NF-BIBLI-43 |
Permalien de la fiche NuitFrance : |
http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique&id_doc=43 |
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