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Consequences of habitat loss and change to populations of wintering migratory birds: predicting the local and global effects from studies of individuals

Autor: Ralph T. Clarke, Richard W. G. Caldow, Jamil Urfi, Y D. West, Sarah E. A. Le V. Dit Durell, John D. Goss-Custard

Publikováno v: Ibis. 137:S56-S66

Population models show that the response of migratory bird populations to a reduction in the area, or change in the quality, of their winter feeding areas depends critically on the shape (linear or non-linear) and strength (slope) of the relationship

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8549c8a1ac509a8e1c1934822356d6a7
https://doi.org/10.1111/j.1474-919x.1995.tb08458.x

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Lead(II)alkadiynoates. A novel class of liquid-crystalline precursors to poly(diacetylenes)

Autor: G. S. Attard, Y. D. West

Publikováno v: Liquid Crystals. 7:487-494

Lead(II) salts of aliphatic diacetylenic carboxylic acids are found to form highly ordered smectic phases which thermodynamic data indicate are similar to those reported for the saturated lead(II)alkanoates. At room temperature the materials exist as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66a3c2d16f51b78b2e76c0144fcc81eb
https://doi.org/10.1080/02678299008033825

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