Results 1 to 10 of about 621,854 (391)

One or two pups - optimal reproduction strategies of common noctule females

BMC Zoology, 2022
Background The success of animal reproduction is impacted by a trade-off between energetic costs and mortality associated with immediate vs. future reproductive attempts.
Katerina Zukalova, Veronika Seidlova, Vladimir Piacek, Monika Nemcova, Michal Pribyl, Jiri Pikula, Jan Zukal   +6 more
doaj   +1 more source

Blood Parasites and Health Status of Hibernating and Non-Hibernating Noctule Bats (Nyctalus noctula)

Microorganisms, 2022
Co-existence of bats with a wide range of infectious agents relates to their co-evolutionary history and specific physiology. Here, we examined blood samples collected during hibernation and the post-hibernation period to assess the influence of ...
Petr Linhart, Hana Bandouchova, Jan Zukal, Jan Votýpka, Vojtech Baláž, Tomas Heger, Vendula Kalocsanyiova, Aneta Kubickova, Monika Nemcova, Jana Sedlackova, Veronika Seidlova, Lucie Veitova, Anton Vlaschenko, Renata Divinova, Jiri Pikula   +14 more
doaj   +1 more source

Biochemical Indicators and Mortality in Honey Bee (Apis mellifera) Workers after Oral Exposure to Plant Protection Products and Their Mixtures

Agriculture, 2023
The honey bee obtains food from bee forage, which comprises crops grown in multi-hectare agricultural fields where various types of plant protection products such as pesticides are used. Some of these negatively affect the honey bee organism.
Paweł Migdał, Agnieszka Murawska, Ewelina Berbeć, Karol Zarębski, Natalia Ratajczak, Adam Roman, Krzysztof Latarowski   +6 more
doaj   +1 more source

Phagocyte activity reflects mammalian homeo- and hetero-thermic physiological states

BMC Veterinary Research, 2020
Background Emergence of both viral zoonoses from bats and diseases that threaten bat populations has highlighted the necessity for greater insights into the functioning of the bat immune system.
Jiri Pikula, Tomas Heger, Hana Bandouchova, Veronika Kovacova, Monika Nemcova, Ivana Papezikova, Vladimir Piacek, Renata Zajíčková, Jan Zukal   +8 more
doaj   +1 more source

Case report: Filarial infection of a parti-coloured bat: Litomosa sp. adult worms in abdominal cavity and microfilariae in bat semen

Frontiers in Veterinary Science, 2023
BackgroundFilarial infections have been understudied in bats. Likewise, little is known about pathogens associated with the reproductive system in chiropterans.
Jiri Pikula, Vladimir Piacek, Hana Bandouchova, Marie Bartlova, Sarka Bednarikova, Romana Burianova, Ondrej Danek, Ondrej Danek, Petr Jedlicka, Sarka Masova, Monika Nemcova, Veronika Seidlova, Katerina Zukalova, Jan Zukal   +13 more
doaj   +1 more source

Planktonic communities and chaotic advection in dynamical models of Langmuir circulation [PDF]

, 1998
A deterministic mechanism for the production of plankton patches within a typical medium scale oceanic structure is proposed and investigated. By direct numerical simulation of a simple model of Langmuir circulation we quantify the effects of unsteady ...
Bees, M.A.
core   +1 more source

Scaling Deep Decarbonization Technologies

Earth's Future, 2021
The 2020s represent an unprecedented time to address climate change in the United States given the opportunities provided by its large renewable resource base and decreasing technology costs, and the threat to humans and ecosystems due to rapidly ...
K. J. Holmes, E. Zeitler, M. Kerxhalli‐Kleinfield, R. DeBoer   +3 more
doaj   +1 more source

A tale of three taxes: photo-gyro-gravitactic bioconvection [PDF]

, 2011
The term bioconvection encapsulates the intricate patterns in concentration, due to hydrodynamic instabilities, that may arise in suspensions of non-neutrally buoyant, biased swimming microorganisms. The directional bias may be due to light (phototaxis),
Bees, M., Williams, C.R.
core   +1 more source

Deciphering acidogenic process towards biohydrogen, biohythane, and short chain fatty acids production: multi-output optimization strategy [PDF]

Biofuel Research Journal, 2016
Optimization of process parameters is crucial to understand the acidogenic fermentation process and its regulation towards the production of specific metabolites, viz., biohydrogen (H2), methane (CH4), biohythane (H2+CH4), and volatile fatty acids (VFA).
Omprakash Sarkar, S. Venkata Mohan
doaj   +1 more source

Non-linear bioconvection in a deep suspension of gyrotactic swimming micro-organisms [PDF]

, 1999
The non-linear structure of deep, stochastic, gyrotactic bioconvection is explored. A linear analysis is reviewed and a weakly non-linear analysis justifies its application by revealing the supercritical nature of the bifurcation. An asymptotic expansion
Bees, M., Hill, N.
core   +2 more sources