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Articles 21331 - 21360 of 27519
Full-Text Articles in Entire DC Network
Observations Sur I'Écologie Et La Distribution Des Turbellariés Tricladides Dépigmentés Et Anophtalmes De Roumanie, L. Botosaneanu
Observations Sur I'Écologie Et La Distribution Des Turbellariés Tricladides Dépigmentés Et Anophtalmes De Roumanie, L. Botosaneanu
International Journal of Speleology
Twenty-two localities, where unpigmented and mostly blind tricladid turbellarians (Dendrocoelidae and Fonticola) were discovered by the author, are described in more or less detail. These animals are particularly well represented in Romania; the explanation is that they are expansive offshoots of a fauna formerly inhabiting the huge brackish or freshwater lakes which covered most of this country during the Neogene (and especially the Sarmatian). Different species are inhabitants of different particular habitats of the underground water realm, and the author distinguishes between species inhabiting cave waters, typical phreatobionts, hyporheic species and species living in springs or springbrooks. These species are …
Réponses Locomotrices Du Poisson Cavernicole Astyanax Jordani (Pisces, Characidae) À Des Signaux Périodiques Et Apériodiques De Lumière Et De Température, G. Thines, M. Weyers
Réponses Locomotrices Du Poisson Cavernicole Astyanax Jordani (Pisces, Characidae) À Des Signaux Périodiques Et Apériodiques De Lumière Et De Température, G. Thines, M. Weyers
International Journal of Speleology
The locomotory activity of adult cave fishes Astyanax jordani was recorded in isolation in the following light and temperature conditions: constant conditions (100 Lx - 20°C), in a light cycle (LD:11/11 -10 Lx -100 Lx) and in a temperature cycle (11/11; 17/20, 19/22, 20/23, 27/30 °C). All longitudinal time series extended for a minimum of 30 days. Results show: (1) That no circadian regulation appears in constant conditions; (2) that passive entrainment occurs in LD (Amplitude: 90 Lx) and in periodic temperature conditions (Amplitude: 3°C). The entrainment effect damps out and varies individually; (3) that the mean activity increases with …
Vertebrates Of Florida Identification And Distribution, Florida Field Naturalist
Vertebrates Of Florida Identification And Distribution, Florida Field Naturalist
Florida Field Naturalist
No abstract provided.
Feeding Behavior Of Two Hummingbirds In A Costa Rican Montane Forest, Barbara K. Snow
Feeding Behavior Of Two Hummingbirds In A Costa Rican Montane Forest, Barbara K. Snow
Wilson Bulletin
No abstract provided.
Further Comments On Sexual Size Dimorphism In Birds, D. Amadon
Further Comments On Sexual Size Dimorphism In Birds, D. Amadon
Wilson Bulletin
No abstract provided.
Round Table Notes, Morris D. Williams, Paul Crawford, Morris D. Williams
Round Table Notes, Morris D. Williams, Paul Crawford, Morris D. Williams
The Migrant - Tennessee Ornithological Society
No abstract provided.
Male Behavior And Female Recruitment In The Red-Winged Blackbird, Patrick J. Weatherhead, Raleigh J. Robertson
Male Behavior And Female Recruitment In The Red-Winged Blackbird, Patrick J. Weatherhead, Raleigh J. Robertson
Wilson Bulletin
No abstract provided.
Avian Bone Pathologies From Arikara Sites In South Dakota, Paul W. Parmalee
Avian Bone Pathologies From Arikara Sites In South Dakota, Paul W. Parmalee
Wilson Bulletin
No abstract provided.
Reduction Of Courtship Behavior Induced By Dde In Male Ringed Turtle Doves, M. A. Haegele, Rick H. Hudson
Reduction Of Courtship Behavior Induced By Dde In Male Ringed Turtle Doves, M. A. Haegele, Rick H. Hudson
Wilson Bulletin
No abstract provided.
Announcements, Maryland Birdlife
Patterns Of Feeding Field Sparrow Young, Louis B. Best
Patterns Of Feeding Field Sparrow Young, Louis B. Best
Wilson Bulletin
No abstract provided.
John House News, Volume 6, No. 12, December 1977, Mike Johnson
John House News, Volume 6, No. 12, December 1977, Mike Johnson
John House News
Contents: Next Meeting -- Cover Photo -- Water Yaqui's -- DASS Cavers in England & Ireland -- Water -- DASS Cavers -- Everything you ever wanted to know about caves and were embarrassed to ask
The Oracle, November 30, 1977, Ellen Hampton
The Oracle, November 30, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 30, 1977, issue of The Oracle.
Crow's Nest, November 30, 1977, Crow's Nest Staff
Crow's Nest, November 30, 1977, Crow's Nest Staff
Crow's Nest
The November 30, 1977, issue of the Crow's Nest.
The Oracle, November 29, 1977, Ellen Hampton
The Oracle, November 29, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 29, 1977, issue of The Oracle.
The Oracle, November 22, 1977, Ellen Hampton
The Oracle, November 22, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 22, 1977, issue of The Oracle.
The Oracle, November 18, 1977, Ellen Hampton
The Oracle, November 18, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 18, 1977, issue of The Oracle.
The Oracle, November 16, 1977, Ellen Hampton
The Oracle, November 16, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 16, 1977, issue of The Oracle.
The Oracle, November 15, 1977, Ellen Hampton
The Oracle, November 15, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 15, 1977, issue of The Oracle.
The Oracle, November 4, 1977, Ellen Hampton
The Oracle, November 4, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 4, 1977, issue of The Oracle.
The Oracle, November 2, 1977, Ellen Hampton
The Oracle, November 2, 1977, Ellen Hampton
The Oracle (Print Editions)
The November 2, 1977, issue of The Oracle.
The Blue List For 1978, Robert Arbib
Going Places: Trips And Tours, April-September 1978, North American Birds
Going Places: Trips And Tours, April-September 1978, North American Birds
American Birds
No abstract provided.
Index Volume 31 - 1977, North American Birds
Natural Resource Management In Texas Parklands: An Overview, David H. Riskind
Natural Resource Management In Texas Parklands: An Overview, David H. Riskind
Bulletin of the Texas Ornithological Society
No abstract provided.
The Oracle, October 31, 1977, Ellen Hampton
The Oracle, October 31, 1977, Ellen Hampton
The Oracle (Print Editions)
The October 31, 1977, issue of The Oracle.
The Oracle, October 12, 1977, Ellen Hampton
The Oracle, October 12, 1977, Ellen Hampton
The Oracle (Print Editions)
The October 12, 1977, issue of The Oracle.
The Oracle, October 7, 1977, Ellen Hampton
The Oracle, October 7, 1977, Ellen Hampton
The Oracle (Print Editions)
The October 7, 1977, issue of The Oracle.
The Oracle, October 6, 1977, Ellen Hampton
The Oracle, October 6, 1977, Ellen Hampton
The Oracle (Print Editions)
The October 6, 1977, issue of The Oracle.
The Oracle, October 5, 1977, Ellen Hampton
The Oracle, October 5, 1977, Ellen Hampton
The Oracle (Print Editions)
The October 5, 1977, issue of The Oracle.