Results 21 to 30 of about 2,245 (136)

Crustacés parasites et epizoïtes du Cachalot, Physeter catodon Linnaeus, 1758 (Cetacea, Odontoceti), dans le golfe du Lion (Méditerranée occidentale)

open access: yesParasite, 2000
Les auteurs signalent, pour la première fois, la fixation du Cirripède Conchoderma virgatum (Spengler, 1790) sur un Amphipode Cyamidé parasite d'un jeune Cachalot, Physeter catodon Linnaeus, 1758, échoué sur la côte du golfe du Lion (Méditerranée ...
Oliver G., Trilles J-.P.
doaj   +1 more source

Interspecific and interpopulation variation in individual diet specialization: Do environmental factors have a role?

open access: yesEcology, Volume 101, Issue 8, August 2020., 2020
Abstract Individual diet specialization (IS) has important community‐ and population‐level implications and its ecological drivers are actively investigated. Here, to test the hypothesis that local environmental conditions may influence IS in wild populations, we analyzed the stomach contents of 395 individuals from eight populations of five allopatric
Enrico Lunghi   +7 more
wiley   +1 more source

Performances de germination et de croissance de trois provenances du tamarinier (Tamarindus indica L.) en région Guinéo-Congolaise

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires, 2021
Cet essai a été conduit en région Guinéo-Congolaise au Bénin afin d’évaluer la variation de l’aptitude des semences et des juvéniles du tamarinier à germer et à croitre en fonction des provenances écologiques.
Adandé Belarmain FANDOHAN   +3 more
doaj  

Mitochondrial ghost lineages blur phylogeography and taxonomy of Natrix helvetica and N. natrix in Italy and Corsica

open access: yesZoologica Scripta, Volume 49, Issue 4, Page 395-411, July 2020., 2020
Abstract Grass snakes are widely distributed across the Western Palearctic. Recent phylogeographic studies provided evidence that three distinct parapatric species exist. Two of these occur in Italy, Natrix helvetica and N. natrix, and a contact zone between both taxa has been suggested for north‐eastern Italy.
Nadine Schultze   +18 more
wiley   +1 more source

Rubidium marking of Aphidius rhopalosiphi (Hymenoptera: Braconidae) on Sitobion avenae (Hemiptera: Aphididae) reared on a diet supplemented with RbCl

open access: yesEuropean Journal of Entomology, 2005
Markers are essential to study movements of insects in their natural habitat. Among the available techniques, trace elements may be applied to insects as small as parasitoids. Rubidium is the most common element used for marking insects.
Frédéric MURATORI   +2 more
doaj   +1 more source

Are you what you eat? A highly transient and prey‐influenced gut microbiome in the grey house spider Badumna longinqua

open access: yesMolecular Ecology, Volume 29, Issue 5, Page 1001-1015, March 2020., 2020
Abstract Stable core microbial communities have been described in numerous animal species and are commonly associated with fitness benefits for their hosts. Recent research, however, highlights examples of species whose microbiota are transient and environmentally derived.
Susan R. Kennedy   +3 more
wiley   +1 more source

L'hybridation naturelle entre le barbeau commun et le barbeau méridional en France : compte rendu de dix années de recherche

open access: yesKnowledge and Management of Aquatic Ecosystems, 1994
Les deux espèces de barbeaux de France s'hybrident spontanément dans plusieurs bassins. Les modalités de cette hybridation ont été recherchées au travers de nombreuses études relevant de disciplines différentes (biogéographie, éthologie, génétique et ...
CRESPIN L., BERREBI P.
doaj   +1 more source

Evolution de la biogéographie

open access: yes, 1990
The evolution of biogeography in France Biogeography, issued from biology, entered a period of renewal after 1965 through extending the scope of its activity, using new techniques and starting a methodological reflexion upon the concept of landscape ...
Gérard Houzard
core   +1 more source

Automatic detection of small PIT-tagged animals using wildlife crossings

open access: yesAnimal Biotelemetry, 2019
Background Mitigating the effect of linear transport infrastructure (LTI) on fauna is a crucial issue in road ecology. Wildlife crossing structures (tunnels or overpasses) are one solution that has been implemented to restore habitat connectivity and ...
Guillaume Testud   +4 more
doaj   +1 more source

Chapitre XLIV. Les mutations de la Biogéographie

open access: yes, 2016
B. Borner écrivait en 1984 : "Le biogéographe se situe de plus en plus au cœur de la réflexion la plus authentiquement géographique, alors qu’on était encore souvent tenté il y a trente ans de le prendre pour un pseudo-botaniste." A la fin des années 60,
Broc, Numa
core   +1 more source

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