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Evolution in thyme enough ? Rapid physiological evolution in response to pollution in two common British plants / John Richards

Public in Current taxonomic research on the British & European Flora (Leicester, 13-14 September 2003) / John Bailey (2006) Titre : Evolution in thyme enough ? Rapid physiological evolution in response to pollution in two common British plants Type de document : Livre Auteurs : John Richards, Auteur ; Helena Winsnes, Auteur ; Lynn Whitfield, Auteur Importance : pp. 135-148 Langues : Anglais Catégories : [Espèces (in biblio)] Lolium perenne [Espèces (in biblio)] Thymus polytrichus Mots-clés : tolérance Résumé : "Speciation is often confused with evolution, but taxonomic recognition of a species depends on morphological distinctiveness. We argue that when plants are challenged by rapid and drastic environmental changes such as those resulting from pollution, climate change, or new predators and pathogens, they commonly show dramatic and often sympatric physiological evolution, but because this is normally cryptic ('silent') it is not recognised by taxonomists and so tends to be ignored by conservationists and policy makers. The principle is illustrated by wild thyme Thymus polytrichus from metal-rich calaminarian grasslands, and perennial rye-grass Lolium perenne from salted road-verges, both of which appear to have evolved tolerance within the last 100 years. Zinc tolerance in T. polytrichus is biparentally dominant. We were unable to detect a metabolic co st to this tolerance, or for salt tolerance found in roadside L. perenne from several sites. We were unable to induce tolerance by early exposure to salt, and strains that appeared to be innate1y tolerant were not later affected by this early exposure. In contrast, susceptible strains showed a 'hang-over' effect from early exposure, even when grown in salt-free conditions." (source : auteurs) Type de publication : article de livre Référence biblio : Richards J., Winsnes H., Whitfield L., 2006 - Evolution in thyme enough ? Rapid physiological evolution in response to pollution in two common British plants. In : Bailey J., Ellis G., Eds, 2006 - Current taxonomic research on the British & European Flora (Leicester, 13-14 September 2003). London : Botanical Society of the British Isles, 135-148. ID PMB : 6454 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=6454

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Why fitness impacts of different herbivores may combine nonadditively, and why it matters to the ecology and evolution of plant-herbivore communities / Michael J. Wise in Plant Ecology and Evolution, vol. 156, n°1 (Année 2023)

Public [article]  inPlant Ecology and Evolution > vol. 156, n°1 (Année 2023) . - pp. 13-28 Titre : Why fitness impacts of different herbivores may combine nonadditively, and why it matters to the ecology and evolution of plant-herbivore communities Type de document : périodique Auteurs : Michael J. Wise, Auteur Année de publication : 2023 Article en page(s) : pp. 13-28 Langues : Anglais Catégories : [Espèces (in biblio)] Solanum carolinense Mots-clés : Epitrix  coevolution  pâturage  tolérance Résumé : "The manner by which the effects of multiple antagonists combine is a fundamental issue in ecology. This issue has been especially important in plant-herbivore evolutionary ecology—particularly predicting whether the combined fitness impacts of multiple herbivores on a shared host plant can be inferred by simply adding the individual impacts that each herbivore has when feeding alone. Despite accumulating empirical data, relatively little theoretical progress has been made in explaining why impacts of herbivore damage often combine nonadditively, as well as predicting the conditions that lead to a greater-than-additive (synergistic) or to a less-than-additive (subadditive) pattern." (source : auteur) Type de publication : périodique Référence biblio : Wise M., 2023 - Why fitness impacts of different herbivores may combine nonadditively, and why it matters to the ecology and evolution of plant-herbivore communities. Plant Ecology and Evolution, 156 (1) : 13-28. ID PMB : 71254 DOI : https://doi.org/10.5091/plecevo.95982 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71254 [article]

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