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A collection of Thalassinidea, Anomura and Brachyura (Crustacea: Decapoda) from the Kimberley region of Northwestern Australia Naturalis
Morgan, G.J..
One hundred and five species of thalassinidean, anomuran and brachyuran decapod crustaceans are recorded from a 1988 collecting expedition to the Kimberley region of northwestern Australia. An additional 70 species are recorded from the literature. One new species of pagurid hermit crab and a new species of xanthid crab are described.
Tipo: Article / Letter to the editor Palavras-chave: Thalassinidea; Anomura; Brachyura; Crustacea; Kimberleys; Australia.; 42.74.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/317551
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Testing construct validity of verbal versus numerical measures of preference uncertainty in contingent valuation AgEcon
Akter, Sonia; Bennett, Jeffrey W..
The numerical certainty scale (NCS) and polychotomous choice (PC) methods are two widely used techniques for measuring preference uncertainty in contingent valuation (CV) studies. The NCS follows a numerical scale and the PC is based on a verbal scale. This report presents results of two experiments that use these preference uncertainty measurement techniques. The first experiment was designed to compare and contrast the uncertainty scores obtained from the NCS and the PC method. The second experiment was conducted to test a preference uncertainty measurement scale that combines verbal expressions with numerical and graphical interpretations: a composite certainty scale (CCS). The construct validity of the certainty scores obtained from these three...
Tipo: Report Palavras-chave: Preference uncertainty; Contingent valuation; Numerical certainty scale; Polychotomous choice method; Composite certainty scale; Climate change; Australia.; Environmental Economics and Policy; Research Methods/ Statistical Methods; Q51; Q54.
Ano: 2010 URL: http://purl.umn.edu/94942
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Troglodytes of a muddy bottom: the hydroid fauna of holes in the seabed Naturalis
Watson, J.E..
During ecological surveys in Port Phillip Bay Victoria, Australia, colonies of minute leptothecate hydroids were found living in tubes in a muddy seabed, the tubes probably being those of polychaete worms. Three species are recorded: two are new species and the third, provisionally assigned to Rathkea octopunctata, is a new record for Australia.
Tipo: Article / Letter to the editor Palavras-chave: Hydroids; Polychaete tubes; Port Phillip Bay; Australia.; 42.72.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/317895
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