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Article
Theodore B. Mayaka, Auteur ; Francis Guetse, Auteur ; Abel Chemura, Auteur ; Richard Tamungang, Auteur ; David Hořák, AuteurThe little studied Mount Cameroon Francolin Pternistis camerunensis is endangered and strictly endemic to the undergrowth of Mount Cameroon’s primary forest. We surveyed the species in the Mount Cameroon National Park in July–August 2016 using c[...]
Article
Taiwo C. Omotoriogun, Auteur ; Terje Laskemoen, Auteur ; Melissah Rowe, Auteur ; Tomáš Albrecht, Auteur ; Rauri C. K. Bowie, Auteur ; Ondřej Sedláček, Auteur ; David Hořák, Auteur ; Ulf Ottosson, Auteur ; Jan T. Lifjeld, AuteurBirds show considerable variation in sperm morphology. Closely related species and subspecies can show diagnostic differences in sperm size. There is also variation in sperm size among males within a population, and recent evidence from passerin[...]
Article
Alena Klvanova, Auteur ; Miroslava Luskova, Auteur ; David Hořák, Auteur ; Alice Exnerova, AuteurCapsule A higher animal component in the diet and a greater amount of food result in better condition. Aims To investigate the relative importance of different food types to nestling House Sparrows. Methods Faecal sac samples (n = 206) from 106 [...]
Article
Ondřej Sedláček, Auteur ; Jiri Reif, Auteur ; Jan Riegert, Auteur ; David Hořák, Auteur ; Michal Pesata, Auteur ; Zaboj Hrazsky, Auteur
Article
Jan Riegert, Auteur ; Michal Pesata, Auteur ; Jiri Reif, Auteur ; David Hořák, Auteur ; Ondřej Sedláček, Auteur ; Zaboj Hrazsky, Auteur ; Stepan Janecek, Auteur ; Jakub Brom, Auteur ; Michael Bartos, Auteur ; Dasa Bystricka, Auteur
Article
Ecological interactions between plants and sunbird species in Bamenda Highlands, North-West Cameroon
Jan Riegert, Auteur ; Michal Pesata, Auteur ; Stepan Janecek, Auteur ; Ondřej Sedláček, Auteur ; Jiri Reif, Auteur ; David Hořák, Auteur ; Zaboj Hrazsky, Auteur ; Jakub Brom, Auteur ; Michael Bartos, Auteur ; Dasa Bystricka, Auteur
Article
Jaroslav Kolecek, Auteur ; Matthias Schleuning, Auteur ; Ian J. Burfield, Auteur ; Andras Baldi, Auteur ; Katrin Böhning-Gaese, Auteur ; Vincent Devictor, Auteur ; Jose Maria Fernandez-Garcia, Auteur ; David Hořák, Auteur ; Chris A. M. Van Turnhout, Auteur ; Oksana Hnatyna, Auteur ; Jiri Reif, AuteurProtecting species is one of the major focuses of conservation efforts. However, large-scale assessments of the effects of species protection on animal populations are rare. Protection has been shown to benefit birds in Western Europe and in the[...]
Article
Ondřej Sedláček, Auteur ; Jana Vokurková, Auteur ; Michal Ferenc, Auteur ; Eric Nana Djomo, Auteur ; Tomáš Albrecht, Auteur ; David Hořák, AuteurAcoustic signals are frequently used for estimating avian species richness, abundance and community composition. However, sampling by traditional methods of bird surveys is often limited by availability of experienced researchers in the field, e[...]
Article
Adela Petrzelkova, Auteur ; Hannu Poysa, Auteur ; Petr Klvana, Auteur ; Tomáš Albrecht, Auteur ; David Hořák, AuteurConspecific brood parasites lay eggs in nests of other females of the same species. A variety of methods have been developed and used to detect conspecific brood parasitism (CBP). Traditional methods may be inaccurate in detecting CBP and in rev[...]
Article
Food niche differentiation in two syntopic sunbird species: a case study from the Cameroon Mountains
Jan Riegert, Auteur ; Drahomira Fainova, Auteur ; Marcin Antczak, Auteur ; Ondřej Sedláček, Auteur ; David Hořák, Auteur ; Jiri Reif, Auteur ; Michal Pesata, AuteurClosely related bird species can coexist in areas of range overlap due to differentiation of their ecological niches. If coexisting species have similar habitat requirements, separation of food niches presumably plays a crucial role. Theoretical[...]
Article
Lenka Kopsova-Storchova, Auteur ; David Storch, Auteur ; Lluis Brotons, Auteur ; David Hořák, AuteurReproductive traits provide information about the ways by which available resources are allocated during breeding. We tested for environmental drivers of large scale geographical patterns in assemblage mean clutch size, number of broods and over[...]
Article
Jiri Reif, Auteur ; Ondřej Sedláček, Auteur ; David Hořák, Auteur ; Jan Riegert, Auteur ; Michal Pesata, Auteur ; Zaboj Hrazsky, Auteur ; Stepan Janecek, AuteurAlthough the high species richness and endemism of birds in the Bamenda Highlands has attracted ornithological research for decades, most studies have been restricted to bird communities of continuous montane forests. Instead, we focused on a mo[...]
Article
Eric Djomo Nana, Auteur ; Ondřej Sedláček, Auteur ; Jana Vokurková, Auteur ; David Hořák, AuteurNest predation is the leading cause of reproductive failure in birds and thus it shapes their life history strategies. Intensities of nest predation appear to differ among nest locations and types in both temperate and tropical regions. However,[...]
Article
David Hořák, Auteur ; Tomáš Albrecht, AuteurInvestigators studying the relationship between egg size and young size often face difficulties in assigning particular young to particular eggs. We present a new method based on the use of separate net sacks for each egg that allowed us to stud[...]
