Description: Das Projekt "Effects of contemporary and historical gene flow in maintaining the genetic diversity of fragmented Araucaria araucana populations" wird vom Umweltbundesamt gefördert und von Universität Marburg, Fachbereich Biologie, Professur Naturschutzbiologie durchgeführt. Araucaria araucana ( Molina) K. Koch. is a species endemic to the southern South American temperate forest that grows in a reduced area between 37º 20' and 40º 20' S (Veblen et al., 1995). It represents the main food and economical resource of the aborigine communities (Mapuches) which lives in and from these forests. The great exploitation suffered by this species in the past, the long periods of fires and the intense human activities had led to a high level of erosion of its genetic resources, mainly in the eastern edge of its distribution range in Argentina where highly fragmented populations occur. Moreover, the complete absence of natural regeneration is driving these eastern populations to its extinction. For this reason, the species is currently protected in Argentina by regulations of Lanin National Park and Neuquen Province Government. Besides, it was recently included in CITES, Convention on International Trade in Endangered Species of Wild Fauna and Flora. However, little is known about its genetic variation and the recently began studies (Bekessy et al., 2002; Izquierdo et al., 2002; Gallo et al., 2003; Marchelli, Ziegenhagen & Gallo, 2003) should be complemented. The objective of this proposal is to study gene flow among fragmented populations in the Patagonian steppe in order to provide information for conservation strategies. Furthermore, the present project will allow the continuity and reinforcement of a long-lasting cooperation between the two groups that began in 1996.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Gen ? Marburg ? Genetische Variation ? Artenverlust ? Skigebiet ? Erosion ? Genetische Ressourcen ? Endemische Arten ? Argentinien ? Main ? Waldressourcen ? Gefährdete Arten ? Geschützte Arten ? Temperater Forst ? Endemie ? Abgrabung ? Artenbestand ? Mensch ? Nationalpark ? Steppe ? Studie ? Verbreitungsgebiet ? Phylogenese ? Genetische Vielfalt ? Wildfauna ? Bevölkerung ? Flora ? Population ? Zusammenarbeit ? Schutzziel ? conservation genetics ? fragmentation ?
Region: Hessen
Bounding box: 9° .. 9° x 50.55° .. 50.55°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2004-01-01 - 2006-12-31
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