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"The Neotropical lycaenid hairstreak genus Paraspiculatus is unusual because of a high frequency of sympatry in the Upper Amazon Basin coupled with negligible interspecific variation of male genitalic structures and absence of male secondary sexual traits. Male sexual structures are postulated to promote species recognition by females and to contribute to reproductive isolation, for which reason a high incidence of sympatry in Paraspiculatus would not be expected. A revision of Paraspiculatus was feasible because we increased the number of study specimens more than five-fold (by the extensive use of rotting fish as a bait for males) and sequenced the "barcode" part of the mitochondrial gene CO1 for almost all species. We recognize 19 Paraspiculatus species based on male wing patterns, of which ten are newly described and registered with ZooBank. We partition the 19 species into ten species complexes, which are monophyletic in all analyses of morphological characters, CO1 sequences, and a combined dataset. Male Paraspiculatus are attracted to traps baited with rotting fish in eastern Ecuador, but elsewhere this attraction is less frequent or absent. Using the behavior of other eumaeines as context, we briefly discuss these observations with respect to Paraspiculatus biology. Ten of 19 Paraspiculatus species are sympatric in the Upper Amazon Basin below 1,250 m. Five of these sympatric species are from a single species complex. This instance of apparent in situ diversification is responsible for much of the sympatric diversity in Paraspiculatus in the Upper Amazon Basin."--Provided by publisher.
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RBINS-OTHER --- Diversité des espèces --- Coexistence. --- Coexistence of species --- Diversité des espèces --- General ecology and biosociology --- Biodiversity. --- Species diversity. --- Biodiversity --- Species diversity --- Biodiversité --- Coexistence --- Diversity, Species --- Richness, Species --- Species richness --- Biological diversification --- Biological diversity --- Biotic diversity --- Diversification, Biological --- Diversity, Biological --- Biology --- Biocomplexity --- Ecological heterogeneity --- Numbers of species
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"Les changements géophysiques et la crise biologique planétaires en cours sont autant de facteurs de bouleversements géopolitiques rapides, massifs et brutaux. Un nouveau paysage géopolitique et stratégique émerge, marqué par la combinaison du changement climatique et de ses effets systémiques, telles les migrations de masse, la compétition mondiale pour les ressources et la crise des régimes contemporains. Où les politiques de Trump, de Poutine et de la Chine mènent-elles la planète ? Comment l’épuisement des océans alimente-t-il la piraterie maritime ? Comment le réchauffement de l’Arctique est-t-il exploité par certains intérêts tandis qu’il constitue une immense catastrophe pour des milliards d’humains ? Quelles régions ont-elles les meilleurs atouts pour traverser le XXIe siècle ? L’auteur, spécialiste de géopolitique, nous fait comprendre les liaisons dangereuses entre puissance économique, guerre et environnement. Il nous alerte sur les dangers, les violences et les barbaries qui se profilent. Le moment du choix collectif entre la « guerre de tous contre tous » sur une planète effondrée ou une alliance stratégique mondiale pour répondre aux nouveaux défis planétaires approche à grands pas."--Back cover.
International relations --- Climatic changes --- Nature --- Environmental degradation --- Political aspects --- Effect of human beings on --- Coexistence --- Foreign affairs --- Foreign policy --- Foreign relations --- Global governance --- Interdependence of nations --- International affairs --- Peaceful coexistence --- World order --- National security --- Sovereignty --- World politics --- Degradation, Environmental --- Destruction, Environmental --- Deterioration, Environmental --- Environmental destruction --- Environmental deterioration --- Natural disasters --- Environmental quality --- Effect of human beings on&delete& --- Climatic changes - Political aspects --- Nature - Effect of human beings on - Political aspects --- Environmental degradation - Political aspects
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Species --- Resource partitioning (Ecology) --- Evolution (Biology) --- Biotic communities --- 574.4 --- 575.824 --- Animal evolution --- Animals --- Biological evolution --- Darwinism --- Evolutionary biology --- Evolutionary science --- Origin of species --- Biology --- Evolution --- Biological fitness --- Homoplasy --- Natural selection --- Phylogeny --- Partitioning, Resource (Ecology) --- Competition (Biology) --- Ecology --- Niche (Ecology) --- Speciation (Biology) --- Genetics --- Hybridization --- Organisms --- Biocenoses --- Biocoenoses --- Biogeoecology --- Biological communities --- Biomes --- Biotic community ecology --- Communities, Biotic --- Community ecology, Biotic --- Ecological communities --- Ecosystems --- Natural communities --- Population biology --- Terrestrial biocoenoses and ecosystems. Biogeocoenoses. Biogeochemical cycles. Food chains --- Struggle for existence --- 575.824 Struggle for existence --- 574.4 Terrestrial biocoenoses and ecosystems. Biogeocoenoses. Biogeochemical cycles. Food chains --- Coexistence
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