Browsing by Organisational Unit "Biologie"
Now showing items 21-40 of 69
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Distribution, dispersal, and management of the invasive legume Lupinus polyphyllus in the UNESCO Biosphere Reserve Rhön
(2021)Semi-natural grasslands are one of the most prominent remnants of the historical cultural landscapes of Central Europe. Due to their century-long land-use history, they are remarkably diverse ecosystems. However, they are ... -
Diving seabirds share foraging space and time within and among species
(2010)Ecological theory predicts that animals with similar foraging strategies should not be able to coexist without segregating either in space, time or diet. In communities, intra-specific competition is thought to be more ... -
Effect of supplementary food on age ratios of European turtle doves (Streptopelia turtur L.)
(2015)Many farmland birds have difficulties finding sufficient food in intensely managed agricultural ecosystems, and in more extensively worked landscapes they are often attracted to human–induced dietary sources. European ... -
Einflussfaktoren auf die Intention zur Anwendung von Medizin und Paramedizin unter besonderer Berücksichtigung der schulischen Gesundheitsförderung
(2020)• Die Auseinandersetzung mit Medizin und Paramedizin hat eine hohe Bedeutung für die Bildungsarbeit und den Kompetenzerwerb im Rahmen der Gesundheitsförderung (Kap. 1 und 3). • Es gibt demografische und psychosoziale ... -
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins
(2012)Logger technology has revolutionised our knowledge of the behaviour and physiology of free-living animals but handling and logger attachments may have negative effects on the behaviour of the animals and their welfare. We ... -
Experimental manipulation of cavity temperature produces differential effects on parasite abundances in blue tit nests at two different latitudes
(2021)Although different predictive models forecast that climate change will alter the distribution and incidence of parasitic diseases, few studies have investigated how microclimatic changes may affect host-parasite relationships. ... -
Female-specific colouration, carotenoids and reproductive investment in a dichromatic species, the upland goose Chloephaga picta leucoptera
(2010-11-01)Although studies on the evolution and function of female ornaments have become more numerous in the last years, the majority of these studies were carried out in cases where female ornaments were a smaller and duller version ... -
Function of the RNA-binding activity of the nuclear mRNA-binding protein Npl3 in nuclear mRNA packaging
(2021)An essential step of gene expression is the formation of a messenger ribonucleoprotein particle (mRNP). Already during transcription the nascent mRNA is bound by mRNA-binding proteins (RBPs) that package the mRNA into an ... -
Geographical variation in egg size dimorphism in rockhopper penguins
(2010)All crested penguins present a unique reversed hatching asynchrony: the larger second-laid egg (B-egg) hatches before the smaller first-laid egg (A-egg). Although both eggs often hatch, the A-chick generally dies of ... -
Good days, bad days: wind as a driver of foraging success in a flightless seabird, the southern rockhopper penguin
(2013)Due to their restricted foraging range, flightless seabirds are ideal models to study the short-term variability in foraging success in response to environmentally driven food availability. Wind can be a driver of upwelling ... -
Half a world apart? Overlap in nonbreeding distributions of Atlantic and Indian Ocean thin-billed prions
(2015)Distant populations of animals may share their non-breeding grounds or migrate to distinct areas, and this may have important consequences for population differentiation and dynamics. Small burrow-nesting seabirds provide ... -
Hemosporidian blood parasites in seabirds - a comparative genetic study of species from Antarctic to tropical habitats
(2010)Whereas some bird species are heavily affected by blood parasites in the wild, others reportedly are not. Seabirds, in particular, are often free from blood parasites, even in the presence of potential vectors. By means ... -
Hidden dichromatism in the Burrowing Parrot (Cyanoliseus patagonus) as revealed by spectrometric colour analysis
(2009)Bird colour perception differs fundamentally from that of humans. Birds have more cone types in the retina, including UV or violet cones, which enable them to perceive a wider spectral range. Thus, human colour perception ... -
High-coverage genomes to elucidate the evolution of penguins
(2019-09-01)Background: Penguins (Sphenisciformes) are a remarkable order of flightless wing-propelled diving seabirds distributed widely across the southern hemisphere. They share a volant common ancestor with Procellariiformes close ... -
House mouse colonization patterns on the sub-Antarctic Kerguelen Archipelago suggest singular primary invasions and resilience against re-invasion
(2010)Background: Starting from Western Europe, the house mouse (Mus musculus domesticus) has spread across the globe in historic times. However, most oceanic islands were colonized by mice only within the past 300 years. This ... -
How animals distribute themselves in space: energy landscapes of Antarctic avian predators
(2021)Background: Energy landscapes provide an approach to the mechanistic basis of spatial ecology and decision-making in animals. This is based on the quantification of the variation in the energy costs of movements through a ...