Results 131 to 140 of about 1,976 (250)

Mosquito eggs XIV. [PDF]

open access: yes, 1971
Volume:

core  

On the Motion of Small Spheres in Gases. II. Thermo-phoresis, Diffusio-phoresis and Related Phenomena

open access: yesZeitschrift für Naturforschung A, 1972
Abstract Using the general theory developed by the author in the previous paper, the problems of thermo-phoresis and diffusio-phoresis have been examined with a view to elucidating the effect of a general gas-surface scattering law on the associated forces.
openaire   +1 more source

A Revision of Dispersal Strategies in Freshwater Sponges: The Journey of the Ponto-Caspian Sponge Rosulaspongilla rhadinaea (Porifera: Spongillidae), a New Alien Species for Europe

open access: yesLimnological Review
Alien species constitute one of the main threats to freshwater ecosystems, negatively impacting biodiversity, economy, and ecosystem services. Here, we use morphological and genetic data to show the presence of a new alien freshwater sponge in Europe ...
José Luis Carballo   +2 more
doaj   +1 more source

Los enemigos naturales de Haematobia irritans irritans (Diptera; Muscidae) en dos áreas ganaderas de la Argentina [PDF]

open access: yes, 1994
Fil: Torres, Pablo R.. Área de Parasitología y enfermedades parasitarias de la Facultad de Ciencias Veterinarias. UBA; ArgentinaFil: Cicchino, Armando Conrado. División Entomología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata;
Abrahamovich, Alberto H.   +4 more
core  

Pseudoscorpiones (Arachnida) in phoretic association with Passalidae (Insecta, Coleoptera) in the Amazon State, Brazil

open access: yes, 1992
Pseudoscorpions were collected nocturnally at the upper Urubu River, Amazonas, Brazil, using artificial light, at monthly intervals between January 1982 and December 1983.
Aguiar, N., Bührnheim, P.
core  

THE ECOLOGY OF MUTUALISM [PDF]

open access: yes, 1982
Elementary ecology texts tell us that organisms interact in three fundamen­ tal ways, generally given the names competition, predation, and mutualism. The third member has gotten short shrift (264), and even its name is not generally agreed on.
Boucher, Douglas H.   +2 more
core   +1 more source

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