Artykuły naukowe (WB)
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Browsing Artykuły naukowe (WB) by Author "Bogdziewicz, Michał"
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Item Diet of the American mink Neovison vison in an agricultural landscape in western Poland(2013) Krawczyk, Agata J.; Bogdziewicz, Michał; Czyż, Michał J.We studied the diet of the American mink (Neovison vison) in small artificial watercourses located in a farmland area of the valley of the River Barycz in Poland. Rodents, mainly Microtus spp., were the most frequent prey identified, occurring in 88.3 % of all analyzed mink scat. Minks also fed willingly on fish, birds and amphibians, whereas insects, crayfish and reptiles accounted for only a small part of the biomass of food consumed. The food niche breadth of the mink’s diet was wide, and varied significantly between seasons; in spring and autumn minks preyed mainly on rodents and fish, while the winter and summer diets consisted of a broad characterization of prey items. The proportion of mammals in the diet also decreased significantly during the summer months. These patterns differ from those previously reported in Europe, and demonstrate the plasticity of the mink diet across habitats.Item Differentiation of flea communities infesting small mammals across selected habitats of the Baltic coast, central lowlands, and southern mountains of Poland(2014-03-13) Kowalski, Krzysztof; Eichert, Urszula; Bogdziewicz, Michał; Rychlik, LeszekOnly a few studies comparing flea composition on the coast and in the mountains have been conducted. We investigated differences in flea communities infesting small mammals in selected habitats in northern, central and southern Poland. We predicted: (1) a greater number of flea species in the southeastern Poland and a lower number in the north; (2) a greater number of flea species in fertile and wet habitats than in poor and arid habitats; (3) a low similarity of flea species between flea communities in western and eastern Poland. We found negative effect of increasing latitude on flea species richness. We suppose that the mountains providing a variety of environments and the limits of the geographic ranges of several flea subspecies in southeastern Poland, result in a higher number of flea species. There was positive effect of increasing wetness of habitat on flea species richness. We found a high diversity in flea species composition between western and eastern Poland (beta diversity = 11) and between central and eastern Poland (beta diversity = 12). Re-colonization of Poland by small mammals and their ectoparasites from different (western and eastern) refugies can affect on this high diversity of flea species.Item Ekologiczne aspekty lat nasiennych u drzew(2012-12) Bogdziewicz, Michał; Wróbel, AleksandraWe briefly review the evolutionary causes of mast seeding and the influence of masting on ecosystems. One of the first explanations of masting was the predator satiation hypothesis that states that the advantage of producing a large seed crop is satiation of seed predators, which thus destroy a lower percentage of the crop. Alternatively, animal dispersal hypothesis postulates that mast years result in wider dispersal of nuts by scatter hoarders, reduced probability of eating cached seeds by a hoarder, and thus enhanced likelihood of germination and seedling establishment. It is also documented that large flowering efforts increase chances of successful wind- and animal-mediated pollen transfer (wind and animal pollination hypotheses). However, these hypotheses are not mutually exclusive and it is possible that masting has more than just one evolutionary cause. We also present the proximate factors thought to explain the phenomenon of intermittent, synchronous seeding. We describe pollen and pollinator coupling model and the role of weather cues in synchronizing plant populations over large areas. Finally, we describe trophic cascades caused by mast seeding. For example, large seed crops directly influence populations of granivorous rodents and thus indirectly alter the nest success of song birds, stop the gradation of insect pests, and change the risk of Lyme disease transmission. Such interactions might be altered when the interval between masting events decreases due to global warming.Item It is raining mice and voles: which weather conditions influence the activity of Apodemus flavicollis and Myodes glareolus?(Springer, 2015-01) Wróbel, Aleksandra; Bogdziewicz, MichałRodents constitute a crucial part of food chains in many ecosystems; thus, changes in their activity might influence many other species in the community. Moreover, daily variations in activity appear to be an important adaptation, helping rodents to cope with fluctuating intensity of predation pressure and food availability. We investigated how the nightly activity of the yellow-necked mouse (Apodemus flavicollis) and the bank vole (Myodes glareolus) changes with weather conditions. Increased cloud cover enhanced activity of mice, but this effect tended to be weaker during the full moon. In turn, the activity of bank voles was positively influenced by moon phase regardless of cloud cover. Temperature had a negative effect on the activity of both species. Rainfall positively influenced A. flavicollis capture numbers, but tended to decrease the activity of M. glareolus. Therefore, while the activity of both mice and voles was under a strong influence of weather variables, their responses to weather were largely species specific.Item Lata nasienne i gryzonie czyli o wpływie zwierząt na rozsiewanie nasion buka i dębu(2014) Bogdziewicz, MichałItem Responses of small mammals to clear-cutting in temperate and boreal forests of Europe: a meta-analysis and review(Springer, 2013) Bogdziewicz, Michał; Zwolak, RafałWe analyzed the responses of small mammals to clear-cutting in temperate and boreal forests in Europe. We conducted a meta-analysis of published research on most often studied small mammal species (the striped field mouse, the yellow-necked mouse, the wood mouse, the field vole, the common vole, the bank vole, the Eurasian harvest mouse, the common shrew and the Eurasian pygmy shrew), comparing their abundance on clear-cuts and in unharvested stands. For four other species (the gray-sided vole, the Siberian flying squirrel, the Eurasian red squirrel and the hazel dormouse), we provide a qualitative review of their responses to forest harvest. Results of the meta-analysis suggest that common species of small mammals usually increase in abundance after clear-cutting or are unaffected by this disturbance. As an exception, the yellow-necked mouse declines after clear-cutting in boreal but not in temperate forest. The qualitative review suggests that the responses of more specialized (e.g., arboreal) species to forest harvest are more varied than the responses of generalist species included in the meta-analysis. For some species of small mammals (e.g., the Siberian flying squirrel), habitat loss resulting from forest harvest is a major threat.Item Sex differences in flea infections among rodent hosts: is there a male bias?(2015) Kowalski, Krzysztof; Bogdziewicz, Michał; Eichert, Urszula; Rychlik, LeszekRecognizing patterns of parasite distribution among wildlife hosts is of major importance due to growing risk of transmission of zoonotic diseases to humans. Thus, sex-dependent parasite distribution in higher vertebrates is extensively studied, and males are often found more parasit- ized than females. Male-biased parasitism may be the result of weaker immunocompetence of male hosts owing to the im- munosuppressive effect of androgens. Moreover, larger hosts (males) may demonstrate higher parasite infestation levels than smaller individuals (females), as they constitute a better nutritional resource for parasites and provide them with a greater variety of niches. In the present work, we investigated sex-dependent patterns of flea distribution among three com- mon rodent species (Apodemus agrarius, Apodemus flavicollis, and Myodes glareolus). We hypothesized that males have a higher flea infestation than females. We confirm male-biased parasitism in A. agrarius and M. glareolus, but not in A. flavicollis. Additionally, flea infestation increased with body mass in A. agrarius, but not in A. flavicollis and M. glareolus. The detected differences in parasite distribution among sexes are probably the result of immunosuppressive effects of androgens and spatial behavior of males.Item Summer solstice orchestrates the subcontinental-scale synchrony of mast seeding(2023) Journé, Valentin; Szymkowiak, Jakub; Foest, Jessie; Hacket-Pain, Andrew; Kelly, Dave; Bogdziewicz, MichałHigh interannual variation in seed production in perennial plants can be synchronized at subcontinental scales with wide consequences for ecosystem functioning, but how such synchrony is generated is unclear. We investigated the factors contributing to masting synchrony in European beech, spanning an impressive 2000 km geographic range. Maximizing masting synchrony via spatial weather coordination, known as the Moran effect, requires distant populations to react simultaneously to weather conditions. A celestial cue that occurs simultaneously across the entire Hemisphere is the longest day (summer solstice). We show that European beech abruptly opens its temperature-sensing window on the solstice, hence widely separated populations all start responding to weather signals in the same week. This celestial "starting gun" generates ecological events with unparalleled spatial synchrony across the continent.Item Wpływ gospodarki leśnej na wybrane gatunki małych ssaków(2013) Bogdziewicz, MichałMaintaining biological diversity is one of the main goals of modern forestry. To reach this objective we need to know how management practices affect forest species. This study summarizes the results published in papers on the influence of clear−cutting on small mammals. Most of the studied species increased in abundance on clear−cuts. The response of voles ( Microtus agrestis and M. arvalis ) was uniformly positive. Mice ( Apodemus flavicollis and A. sylvaticus ) and shrews ( Sorex araneus and S. minutus ) varied in their responses but generally their number increased on clear−cuts. Bank voles ( Myodes glareolus ) appeared to be associated with the heterogeneity of habitat rather than with the age of forest stands per se. Nevertheless, our knowledge on the effects of forest management on small mammals is far from complete. In particular, there are almost no studies on the subject conducted in Western Europe or concerning management practices other than clear−cutting.Item Życie w zimie - przypadek najmniejszych ssaków świata(2012) Bogdziewicz, Michał