Climate change has been shown to shift the seasonal timing (ie phenology) and distribution
of species. The phenological effects of climate change on living organisms have often been …

Background Migration theory suggests, and some empirical studies show, that in order to
compete for the best breeding sites and increase reproductive success, long-distance avian …

Many migratory bird species have begun shifting their wintering grounds closer to their
breeding grounds, shortening their yearly migration distance through a behavior called …

Abstract Study region Northeast Poland, Biebrza Basin. Study focus Studying reference
ecosystems and their specific features provides information to be used as background …

Abstract Spring staging Greater White-fronted Geese Anser albifrons have increasingly
shifted from traditional diverse grassland fields to monocultures of winter cereals, causing …

Vigilance, a crucial factor affecting the behaviour of birds, is key to the safety of migratory
animal flocks against predators and other threats. We examined the vigilance of White …

Over the last decades observed climate change in Poland had a significant impact on the
condition and functioning of the environment. Thus, it is crucial to analyze further future …

Water plays a key role in the functioning of wetlands and a shortage or contamination of it
leads to changes in habitat conditions and degradation of ecosystems. This article …

Among Arctic-breeding waterfowl species, spring stopovers are critical to individuals as a
means to accumulate fat and nutrient stores to invest in both migration and their breeding …

In migratory birds, the timing of arrival to the breeding grounds can be affected by weather
on the migration routes and breeding sites at arrival. Timing of breeding can be affected by …