Introducción y objetivos: El cambio climático, el ganado creciente uso turístico favorecen la dispersión de plantas exóticas, amenazando conservación los ecosistemas altoandinos. Estudiamos patrones distribución nativas exóticas en senderos recreativos montaña. M&M: Implementamos protocolo MIREN seis (2400-3600 m s.n.m.) dos áreas protegidas Andes centrales Mendoza las Cordilleras Frontal P...

We studied the relative importance of several environmental factors for tundra plant communities in five locations across Svalbard (High Arctic) that differed in geographical location, oceanographic and climatic influence, and soil characteristics. The amount of marine-derived nitrogen in the soil supplied by seabirds was locally the most important of the studied environmental factors influenci...

Copper ore mining and processing release hazardous post-flotation wastes that are difficult for remediation. The studied tailings were extremely rich in Cu (1800 mg kg-1) and contaminated with Co and Mn, and contained very little available forms of P, Fe, and Zn. The plants growing in tailings were distinctly enriched in Cu, Cd, Co, Ni, and Pb, and the concentration of copper achived the critic...

This paper proposes new anthropogenic pollen indicators for the Balearic Islands and attempts to assess gradients of human impact on vegetation in Mediterranean islands. A combination modern analogue studies, complemented by phytosociological descriptions ordination techniques using quantitative presence/absence data was used. Redundancy analysis allowed us evaluate relationships between types ...

Diversity and distribution of exotic plant taxa in Kosciuszko National Park in south-eastern Australia were reviewed based on 1103 records of exotics from 18 vegetation surveys conducted between 1986 and 2004. 154 taxa from 23 families were recorded in the alpine to montane zones, with eleven taxa in the alpine, 128 taxa in the subalpine and 69 taxa in the montane zone. Nearly all taxa were ass...

Günümüzde kültürü yapılan sebzeler üzerinde kimyasal ilaçlama, kanalizasyon suyu ile sulama ve aşırı gübreleme, insan sağlığını tehdit etmekte, bitkilerin doğal lezzetlerini azaltmakta veya kaybetmelerine neden olmakta insanları güvenli gıda arayışına itmektedir. Bu bağlamda insanlar organik ürünlere yetişmiş sebze türlerine ilgi duymaktadır. çalışma, Ardahan ili ilçelerinde (Posof, Damal, Hana...