Anthropogenic habitat modification and fragmentation is considered one of the most serious threats to biodiversity. To develop effective conservation strategies towards such pressures we need improve our understanding how species richness community composition are shaped by species' responses landscape patterns. In this study tested relationships between patch size isolation, traits in a fragmented calcareous grasslands—a diversity hotspot Southern Norway. We recorded total 381 vascular...

Summary We measured and modelled the dispersal of a wind‐dispersed herb, leafless hawk's beard ( Crepis praemorsa , Asteraceae), using combination measurement techniques, selected empirical models mechanistic originally developed for trees. Dispersal was by releasing individual seeds placing seed traps around an experimentally created point source seeding plants. distances varied considerably between experiments. In releases, were positively related to horizontal wind speed (linear...

One species, the Macaronesian and N African Frankenia ericifolia , with three subspecies is recognized in Cape Verde Islands: ssp. (a coastal, xerophytic ecotype), caboverdeana nov. mesophytic montana montane, hygrophytic ecotype). Subspecies are endemic to Islands. In addition, latifolia comb. et stat. tentatively as Canary Reproductive data suggest that Capeverdean plants self‐compatible but mainly outcrossing. Mor‐phometric analyses of field‐collected material progeny families cultivated...

The prospects for persistence of Eryngium maritimum in its northern distribution area was evaluated by studying historical data, matrix modelling, dispersal, seed germination and molecular variation. Historical data revealed a fragmented small populations with decrease both population numbers size during the last 150 years. Fruits E. were found to have relative low floating ability, making long distance water dispersal more limited than would be expected from world species. Germination (<...

Abstract The scope of this paper is to present a landscape analysis which allows for the inclusion dynamics through time and cultural diversity landscape. Our method classify physical into area types based on main forms production in agricultural society. This combined with known historical sites, result presented as maps representing different periods time. We also generate character areas from modern land use geological basis elements dominate today. Finally, we combine images functional...

The morphological variation between populations of Cochlearia in Northern Scandinavia has been analysed. is correlated to ecology, and four ecotypes are recognized. Based on the differentiation results crossing experiments, referred following three taxa: C. officinalis ssp. which includes common beach ecotype bird cliff ecotype; integrifolia stat. nov. spring growing inland localities up about 600 m a.s.l. cold more or less eutrophic springs, norvegica estuary ecotype, poor, often inundated...

Abstract: The most comprehensive data on many species come from scientific collections. Thus, we developed a method of population viability analysis (PVA) in which this type occurrence can be used. In contrast to classical PVA, our approach accounts for the inherent observation error and allows estimation parameters needed analysis. We tested sensitivity spatial resolution data, length time series, sampling effort, detection probability with simulated conducted PVAs common, rare, threatened...

Abstract Loss of biodiversity is accelerating, including the loss genetic diversity. Conservation small, isolated populations may be important, as they can provide valuable contributions to overall variation and long-term viability species. Furthermore, such play an essential role in adaptation new environments following changes e.g. land-use climate. Dracocephalum ruyschiana a threatened plant species throughout its European distribution, but 25% are situated within Norway. Therefore, has...

This paper reports an experimental study of water dispersal potential and germination the shingle beach plant Mertensia maritima in which we consider effects physical factors (cold treatment, mechanical wear pericarp salt‐water exposure) on diaspores. Our approach also includes testing different orders treatments, contrast to most earlier studies diaspore ecology. A cold period was necessary break seed dormancy, prolonged treatment (stratification at 2°C) enhanced germination. Mechanical...

The prospects for persistence of Glaucium flavum in Norway were evaluated by integrating data concerning spatio‐temporal distribution, plant growth and development, reproduction, dispersal, seed bank genetic variability. distribution the Oslo Fjord region is much more restricted now than before. Out formerly recorded 35 populations, only eight populations present 1998, all outer parts fjord. species a short‐lived iteroparous perennial Norway. This habit gives high reproductive output from...

Abstract Environmental management and planning represent a relatively static detached view of the agrarian landscape, contrasting with dynamic perspective focusing on human participation, action, perception landscape. This focuses species nature types in landscape as result processes. We present an interdisciplinary historical case study Kaus farm Gudbrandsdalen, Norway, both external factors or drivers influencing diversity – such environmental, agricultural cultural heritage policy...