Habitat fragmentation can have severe effects on plant pollinator interactions, for example changing the foraging behaviour of pollinators. To date, the impact of plant population size on pollen collection by pollinators has not yet been investigated. From 2008 to 2010, we monitored nine bumble bee species (Bombus campestris, Bombus hortorum s.l., Bombus hypnorum, Bombus lapidarius, Bombus pasc...

Damage by late spring frost is a risk deciduous trees have to cope with in order to optimize the length of their growing season. The timing of spring phenological development plays a crucial role, not only at the species level, but also at the population and individual level, since fresh new leaves are especially vulnerable. For the pronounced late spring frost in May 2011 in Germany, we studie...

On a global scale, temperature is the main determinant of arctic and alpine treeline position. However on a local scale, treeline form and position vary considerably due to other climatic factors, tree species ecology and life-stage-dependent responses. For treelines to advance poleward or uphill, the first steps are germination and seedling establishment. These earliest life stages may be majo...

Dormice monitoring was carried out between 2014 and 2019 at 14 areas located in various regions of the Tatra National Park Poland. The were habitats: beech forests spruce low mountain zone; forests, windbreaks pine (Pinus mugo) thickets high zone. choice area for resulted from habitat type technical possibilities enabling regular inspections. Each equipped with 30 nest boxes dedicated to dormic...

Due to climate change, treelines are moving higher elevations and latitudes. The estimation of biomass trees shrubs advancing into alpine areas is necessary for carbon reporting. Remotely sensed (RS) data have previously been utilised extensively the forest variables such as tree height, volume, basal area, aboveground (AGB) in various types. Model-based inference found be efficient attributes ...

Sorbus commixta Hedl. (Rosaceae) has been traditionally used in oriental countries for the treatment of asthma and other bronchial disorders. In this study, a chalcone glycoside was isolated from the ethyl acetate extract of the fruits of this plant. The compound was identified as neosakuranin based on the spectroscopic analysis and comparison with literature data. This is the first report of i...