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Los epibiontes en los animales de agua dulce Full text
1943
Margalef, Ramón
5 pages, 1 figure | Los seres vivos están situados en el seno de un ambiente cuyos variados influjos son perceptibles en la organización de los mismos, en forma de adaptaciones, usando este término en el sentido general de respuestas biológicas y conseguientemente teleológicas al estímulo que aquellos provocan. [...] Vorticelas, Cyclops, Branchipus, Ceriodaphnia, Ankistrodesmus, Colacium sideropus Skuja, Batrachospermum, Cladophora, Characium, Draparnaldia, Ocdogonium, Vorticella acquilata Kahl, Vorticella microstoma Ehrenb., Tokophrya cyclopum, Tokophrya lemnarum Stokes, Cocconeis placentula Ehrenb., Chloroclonim Mareci Margalef, Limmaca ovata Drap., Chironosmus, Characium pringsheimii A. Br., Ankistrodesmus falcatus (Corda) Ralfs, stipitatus (Chod.) Lemm., Simocephalus, Colacium versiculosum Ehrenb., Moïna, Chudorus sphaericus, Intranstylum incaginatum Stokes, Chydorus, Branchipus vernalis, Characium gracilipes F. D. Lambert, Characium cylindricum, Epystilis Zchokkei Keiser, Synedra pulchella Kuetz. [...] | Peer reviewed
Show more [+] Less [-]Estudio economico y ecologico de los peces de agua dulce de Valle del Cauca | Peces de agua dulce del Valle del Cauca
1943
Miles, Cecil
Influência da matéria orgânica sobre a capacidade útil do solo para a água Full text
1943
Costa, Joaquim Vieira Botelho da | Alves, J. de Almeida
info:eu-repo/semantics/publishedVersion
Show more [+] Less [-]A água na defesa da Terra. A obra da Junta Autónoma das Obras de Hidráulica Agrícola Full text
1943
Mayer, Ruy
info:eu-repo/semantics/publishedVersion
Show more [+] Less [-]Ecologia do Anopheles gambiae: pesquisas preliminares sôbre a viabilidade dos ovos que ficam fora da água Full text
1943
G. M. de Oliveira Castro
<abstract language="eng">Within the possibilities offered by an emergency laboratory in Aracati, Ceará State, we studied the resistance of the eggs of Anopheles gambiae, maintained out of water under different conditions of temperature and humidity. The resistance observed was insufficient to justify special mosquito-control measures. The same results were obtained with larvae and pupae at low temperature. The analysis of the data concerning the egg resistance showed that hatching depends on stimuli.
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