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Articles by Martin Bulla
Urban birds' tolerance towards humans was largely unaffected by COVID-19 shutdown-induced variation in human presence - Communications Biology
Abstract The coronavirus disease 2019 (COVID-19) pandemic and respective shutdowns dramatically altered human activities, potentially changing human pressures on urban-dwelling animals. Here, we use such COVID-19-induced variation in human presence to evaluate, across multiple temporal scales, how urban birds from five countries changed their tolerance towards humans, measured as escape distance.
Termination of the employment relationship in Slovakia.
Termination of the employment relationship in Slovakia. [1] University of Groningen Localización: Revista justicia & trabajo, ISSN-e 2952-1955, Nº. Extra 0, 2024 (Ejemplar dedicado a: Los diferentes tipos de despidos en Europa.), págs. 183-203 Idioma: inglés Títulos paralelos: Terminación de la relación laboral en Eslovaquia.
Differences in sperm swimming speed and morphology between the three genetic morphs in the ruff sandpiper
Abstract Background. The ruff sandpiper Calidris pugnax is a Palearctic lekking shorebird with three genetic morphs determined by an autosomal inversion. Male morphs differ strikingly in body size, ornaments, endocrinology and mating behavior. Aggressive Independents represent the ancestral haplotype, while female-mimicking Faeders and semi-cooperative Satellites are the inverted haplotypes.
Sperm traits of the three genetic morphs in the ruff sandpiper
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Comment on “Global pattern of nest predation is disrupted by climate change in shorebirds”
Abstract Kubelka et al. (Reports, 9 November 2018, p. 680) claim that climate change has disrupted patterns of nest predation in shorebirds. They report that predation rates have increased since the 1950s, especially in the Arctic. We describe methodological problems with their analyses and argue that there is no solid statistical support for their claims. Climate change affects organisms in a variety of ways (1–4), including through changes in interactions between species. Kubelka et al.
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