Results 231 to 240 of about 10,871 (247)
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Bacteria and protozoa in soil microhabitats as affected by earthworms
Biology and Fertility of Soils, 1997The effects of incorporation of elm leaves (Ulmus glabra) into an agricultural sandy loam soil by earthworms (Lumbricus festivus) on the bacterial and protozoan populations were investigated. Three model systems consisting of soil, soil with leaves, and soil with leaves and earthworms, respectively, were compared.
Winding, Anne +2 more
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Microhabitat selection in two Chilean cricetid rodents
Oecologia, 1982A discriminant analysis on vegetational variables was performed in order to determine differences in habitat utilization by two sympatric Chilean rodents. Akodon olivaceus brachiotis is associated with vegetational variables that provide greater cover from above.
Roberto, Murúa, Luz A, González
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Microhabitat contributes to microgeographic divergence in threespine stickleback
Evolution, 2020Since the New Synthesis, most migration-selection balance theory has predicted that there should be negligible differentiation over small spatial scales (relative to dispersal), because gene flow should erode any effect of divergent selection. Nevertheless, there are classic examples of microgeographic divergence, which theory suggests can arise under ...
Meghan F. Maciejewski +3 more
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Seasonality and microhabitat selection in a forest-dwelling salamander
The Science of Nature, 2017Many small terrestrial vertebrates exhibit limited spatial movement and are considerably exposed to changes in local environmental variables. Among such vertebrates, amphibians at present experience a dramatic decline due to their limited resilience to environmental change.
Basile M +13 more
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Microhabitats of a Terrestrial Forest Salamander
Copeia, 1980The above-ground density of Plethodon cinereus did not vary over 22 sampling days during spring and summer, even during seven-day periods without rain. Surface density was not correlated with amount of rainfall, but microhabitat choice was so correlated: the percentage of salamanders under rocks and logs increased and the percentage in the leaf litter ...
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Zoological microhabitats of Vibrio cholerae
1996Despite considerable research, the routes of transmission and the basis for the seasonal and pandemic cycles of cholera have not been explained. Those areas of the world where clinical cholera cases appear without apparent importation on a regular seasonal basis are endemic foci for cholera.
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The microhabitat methodology: protocoles for application
1995Ce rapport présente et compare les protocoles d'application de la méthode des microhabitats préconisés par le Cemagref et la Direction des Etudes et Recherches d'EDF, méthode utilisée pour définir l'influence de la valeur du débit réservé dans un tronçon de rivière donné sur la capacité d'accueil pour la truite fario ou le saumon atlantique.
Sabaton, C., Valentin, S., Souchon, Yves
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Microhabitat methodology : validation and perspectives
1995La méthode des microhabitats (Instream Flow Icremental Methodology, en anglais) est l'outil actuellement le plus utilisé pour la simulation des capacités d'accueil des rivières. Elle consiste à coupler des informations obtenues à partir d'un modèle hydraulique et d'un modèle biologique.
Pouilly, M., Souchon, Yves
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