The newly described Senecio ×riloensis combines the morphological features of S. hercynicus and transylvanicus, grows in subalpine habitats Rila Mountains, Bulgaria. It is illustrated with photos living plants locus classicus.

Abstract Mycobacteria were isolated from a variety of materials such as soil, peat, humus, tufa, sphagnum, and wood, collected in alpine and subalpine habitats. Mycobacteria, including Mycobacterium kansasii, Mycobacterium malmoense, Mycobacterium szulgai, Mycobacterium gordonae, Mycobacterium terrae, Mycobacterium chelonae, and Mycobacterium fortuitum were recovered from 69 of 81 (85%) samples...

Aim In clear, cold-water lakes, ultraviolet radiation (UV) and temperature are two important stressors that may prevent the establishment of aquatic invasive species by inhibiting the survival of sensitive early life history stages. In this study, we develop a UV–temperature response model to predict the establishment potential of a warmwater fish, largemouth bass (Micropterus salmoides), in a ...

Particles were isolated from soil leachates from the genetic horizons of a subalpine Podzol from the central Cascades, Washington. Organic particles containing traces of aluminum, iron, silicon, and sulfur were predominant in the migrant material through the upper horizons (horizons A + B); their movement was arrested in the B2hir horizon. Below B2hir and at depth, phyllosilicates, quartz, and ...

More than 20 Synechococcus and Cyanobium isolates were obtained from central European subalpine lakes and sequenced for their 16S rRNA gene and part of the phycocyanin operon (cpc), specifically the intergenic spacer (IGS) between cpcB and cpcA, and corresponding flanking regions (cpcBA-IGS). Maximum-likelihood analyses revealed the existence of at least six to seven clusters of nonmarine picoc...

Wilf et al. (1998) analyzed leaf sizes in modern vegetation and concluded that leaf sizes accurately predict mean annual precipitation (MAP). However, we question the methods employed by these authors to derive leaf size; the modern samples are not comparable to one another or to fossil leaf assemblages, and the influence of temperature on leaf size is ignored. Data for some samples were derive...