Articles

Topological properties in the spatial distribution of amphibians in Alabama USA for the use of large scale conservation

X. Chen

1-13

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Two new Bryconamericus: B. cinarucoense n. sp. and B. singularis n. sp. (Characiformes, Characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species

C. Román-Valencia, D. C. Taphorn B., R. I. Ruiz-C.

15-27

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Monitoring low density populations: a perspective on what level of population decline we can truly detect

P. W. W. Lurz, M. D. F. Shirley, N. Geddes

29-39

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Effects of temperature on embryonic and larval development and growth in the Natterjack toad (Bufo calamita) in a semi-arid zone

D. Sanuy, N. Oromí, A. Galofré

41-46

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Monitoring programs to assess reintroduction efforts: a critical component in recovery

E. Muths, V. Dreitz

47-56

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Descripción de un nuevo limácido de Menorca (Islas Baleares): Gigantomilax (Vitrinoides) benjaminus sp. n. (Gastropoda, Pulmonata)

V. Borredà, A. Martínez-Ortí

57-66

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Hemibrycon rafaelense n. sp. (Characiformes, Characidae), a new species from the upper Cauca River, with keys to Colombian species

C. Román-Valencia, D. K. Arcila-Mesa

67-75

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Revisión taxonómica de Helix zapateri Hidalgo, 1870 (Pulmonata, Trissexodontidae) y su nuevo estatus en la malacofauna ibérica

A. Martínez-Ortí, J. R. Arrébola, A. Ruiz

77-81

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