Download Monitoring Climatic Change with Dragonflies by Jurgen Ott PDF

By Jurgen Ott

Tracking weather switch with Dragonflies presents an incredible new device for facing arguably crucial environmental problem dealing with sleek humanity. It offers a superb foundationon which next examine should be outfitted, and will support make sure that responses to weather switch are as acceptable as attainable. This e-book combines papers from symposia of the realm broad Dragonfly organization (WDA) in Pontevedra (2005) and Swakopmund (2007) - that have been compiled through the editor, in addition to a few extra contributions and a common view on biodiversity comparable weather swap affects from the EC funded ALARM venture. all of the contributions convey, that there are already and should be much more adjustments inside dragonfly in addition to normal aquatic groups, resulting in threats for lots of species, specifically the stenoecious ones. we're faraway from basic conclusions and figuring out of all elements and results, as nonetheless too many questions are open: e.g. i) no matter if diversifications of species to new stipulations are attainable, and if sure, to which quantity, ii) what are long-term and synergisticeff ects, and iii) even if there are administration concepts to mitigate weather switch affects. yet already now it truly is transparent, that there's an pressing desire for motion to lessen the results of climatic alterations (not in basic terms) for dragonfly habitats.

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The AK organizes training courses on exuviae and adult dragonflies. It supports dissertations and other works on dragonflies. There is also an exhibition available to be rent for presentations in order to give information on dragonflies to a great public. g. the “Work Group on amphibians and reptiles”, “AK Herpetofauna NRW”). Aim of this work is a publication about the dragonflies in NRW and the cooperation with other dragonfly-protection-groups all over the world. Due to this intensive work on dragonflies in the last years interesting new knowledge could be attained but also new questions arose.

Trends in occurrence of thermophilous dragonfly species in North Rhine-Westphalia (NRW) 33 The mountainous areas are rich of springs and brooks. g. man-made mill ponds or barrages. Until the 18th century a lot of swamps and bogs had existed in the lowlands, but only small rests have remained until today. The ground water level has decreased nearly everywhere and the diversity and density of small water bodies of the historical landscape does not exist any more. Although construction of new ponds and wetland areas is often practiced, these water bodies are subject to an accelerated succession due to eutrophication (in a high amount caused by air pollution) and also influenced by higher temperatures.

Kiebitz H (1962) Agrion scitulum – eine für Westfalen neue Libellenart. Natur u. Heimat 22: 41–43. Kikillus R, Weitzel M (1981): Grundlagenstudien zur Ökologie und Faunistik der Libellen des Rheinlandes. – Pollichia-Buch, Bad Dürkheim Nr. 2, 244 pp. Kolbe H (1877) Mitteilung über die Libelluliden der Westfälischen Fauna. – Verh. naturhist. Ver. Preuss. Rheinl. Westf. 34. Vierte Folge: 1877 (4), Correspondenzblatt 2: 64–69. 42 Klaus-Jürgen Conze et al. / BioRisk 5: 31–45 (2010) Kolbe H (1878) Über die in der Umgebung von Münster gefundenen Libelluliden.

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