Results 31 to 40 of about 2,245 (136)
L'apport de la biogéographie dans l'étude de la biodiversité
GEOUSP: Espaço e Tempo, 2002 La biodiversité, thème central de cet article, est aujourd'hui menacée. Rechercher les causes de son érosion, en analyser les mécanismes, prévoir ses conséquences, puis protéger ce qui peut l'être, sont les plus grands défis auxquels la communauté ...
Jérôme Fournier
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Contribution à l'étude des rickettsioses du Nord Cameroun. Enquête épidémiologique
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1968 Les auteurs ont entrepris chez les bovins du Nord-Cameroun, chez les animaux et l'homme du Centre-Cameroun (Adamaoua) une enquête sérologique sur les rickettsioses et néorickettsioses.
Yves Maurice, Roger Fernagut, R. Gerome
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Colour polymorphism and conspicuousness do not increase speciation rates in Lacertids
Peer Community Journal, 2023 Conspicuous body colours and colour polymorphism have been hypothesized to increase rates of speciation. Conspicuous colours are evolutionary labile, and often involved in intraspecific sexual signalling and thus may provide a raw material from which ...
de Solan, Thomas +4 more
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European Journal of Entomology, 2004 Precocious activity of parasitoids is a key factor for cereal aphid control. We investigated the oviposition, flight and walking capacities at low temperature of four aphid parasitoids (Aphidius rhopalosiphi, A. ervi, Praon volucre, P.
Alain LANGER, Guy BOIVIN, Thierry HANCE
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Orbis Litterarum, Volume 81, Issue 3, Page 271-280, June 2026.Abstract To expose the pollution of marshes and swamps, whether by hydrocarbons or other contaminants, the French or Francophone author of the twentieth century must first confront a literary tradition that equates stagnant water with a volatile poison and, more broadly, wetlands with toxic environments. In his article “Wetland Gloom and Wetland Glory,”
François Sagot
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Discover Applied SciencesClimate variability and change are among the most significant development challenges currently facing our planet. These phenomena have significant impacts on plant resources including noticeable shifts in phenological stages of plant species and ...
Gildas Bignihin Noudéhouénou Ekpangbo +6 more
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Les milieux naturels et le sacré. Esquisse d’une biogéographie spirituelle de la nature
Bulletin de l’Association de Géographes Français, 2019 By combining individual or collective sacred experiences with the natural objects that create them, the aim was to draw up a phenomenological classification in which environmental forms are not only perceived as objective realities, but also as symbolic ...
Bertrand Sajaloli, Étienne Grésillon
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HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien, 2021 The Russian-Siberian journey, carried out with Alexander von Humboldt and Gustav Rose in 1829 coincided with a decisive phase in Christian Gottfried Ehrenberg’s scientific career.
Ulrich Päßler
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Orchids in the Open: Understanding Biodiversity Beyond Madagascar's Forests
Diversity and Distributions, Volume 32, Issue 3, March 2026.ABSTRACT Aim Orchids make up 8% of Madagascar's vascular plant species richness and are typically associated with the island's forests. Yet most of the island is covered by open ecosystems, long dismissed as degraded. This perception has contributed to their neglect, limiting our understanding of species ecology and hindering conservation action in ...
Jakub D. Wieczorkowski +8 more
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Insect Conservation and Diversity, Volume 19, Issue 1, Page 72-83, January 2026.We analysed genomic data from six closely related Coenonympha butterflies to explore their diversification history across Europe. Despite widespread secondary gene flow, the six species remain genetically distinct, even in areas where their distribution ranges overlap.
Thibaud Camizuli +4 more
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