Autor: Kielan, E. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Znaczenie martwego drewna w funkcjonowaniu populacji małych ssaków
Importance of coarse woody debris in the functioning of small mammals populations
Autorzy:: Jancewicz, E.
Kielan, E.
Powiązania:: https://bibliotekanauki.pl/articles/989215.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
ekosystemy lesne
lasy gospodarcze
drewno martwe
drobne ssaki
ryjowkowate
Soricidae
gryzonie
Rodentia
liczebnosc populacji
zageszczenie populacji
biodiversity
dead wood
rodents
shrews
woody debris
Opis:: Coarse woody debris constitutes an important and often indispensable habitat component for a huge number of vertebrates dwelling in temperate forests. The paper collates the results of research on the impact of coarse woody debris on the functioning of the Rodentia and Soricomorpha populations. In reference to this groups of vertebrates, the subject has been well−documented in the North America. Nevertheless, with regard to small European mammals the issue has not yet been fully recognized. The paper constitutes a review of the available literature on the matter. The cited research revealed that coarse woody debris, in its different decomposition stages, increases the heterogeneity of a habitat. Creating unique micro−habitats for small mammals of high environmental demands, it offers refuge, reproduction site and rich source of nourishment. The abundance of coarse woody debris may have an indirect impact on a population quantity, density and functioning, including area exploitation. The authors stress the fact that in the case of small mammals, associations between coarse woody debris and population features are not universal for all species, since they tend to differ in ecological characteristics. An analysis of the available literature on the matter reveals that the current knowledge of the associations between small mammals and coarse woody debris needs to be broadened and improved. It concerns, in particular, the areas where this type of research has not yet been conducted, including European and Polish forests.
Źródło:: Sylwan; 2017, 161, 06; 519-528
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Czasowa i przestrzenna aktywność nornicy rudej Myodes (Clethrionomys) glareolus i myszy leśnej Apodemus flavicollis w siedlisku grądowym Puszczy Białowieskiej
Temporal and spatial activity of bank vole Myodes (Clethrionomys) glareolus and yellow-necked mouse Apodemus flavicollis in an oak-hornbeam habitat of the Bialowieza Forest
Autorzy:: Kołakowski, M.
Jancewicz, E.
Kielan, E.
Powiązania:: https://bibliotekanauki.pl/articles/985864.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
Puszcza Bialowieska
siedliska gradowe
runo lesne
drobne ssaki
nornica ruda
Clethrionomys glareolus
mysz lesna
Apodemus flavicollis
aktywnosc dobowa
aktywnosc przestrzenna
activity patterns
microhabitat factors
rodents
small mammals
Opis:: The aim of the study was to investigate the pattern of daily activity and connections between daily and spatial activity in relation to the forest undergrowth phytocenosis of the two most common rodent species – bank vole Myodes (Clethrionomys) glareolus (Cricetidae) and yellow−necked mouse Apodemus flavicollis (Muridae). The research was carried out in July 2017 in the oak−hornbeam habitat in the Browsk Forest District in the northern part of the Białowieża Forest. For rodents catching and vegetation evaluation the 1 ha study plot was divided into 100 squares of 10×10 m. Catches were made according to the catch−mark−release method. Wooden live traps (with bait and food for caught animals in the form of the grains of cereals, juicy fruits and aromatic fat) were set in the center of each square. The traps were controlled during 4 days at 3−hour intervals (0 a.m., 3 a.m., 6 a.m., 9 a.m., 12 p.m., 3 p.m., 6 p.m. and 9 p.m.). Traps occupied by rodents were marked with colored adhesive cards according to the established code. Twice a day – at 6 a.m. and 6 p.m. caught rodents were identified to the species and released next to the traps. The catch time was recorded. In total, 151 catches were registered. The daily activity of rodents was determined based on the total catches into assumed time intervals and at different times of the day (day, night, dawn/twilight). We provided a detailed description of undergrowth features of the area where rodents were caught. In each square we assessed the dominant species (on this basis the plants communities were established), the average height of vegetation and the degree of soil coverage with plants (undergrowth density). Collected data were used to the interpretation of the spatial activity of rodents in relation to the different undergrowth characteristics. The bank vole was distinguished by an even, day−and−night activity rhythm, while the yellow−necked mouse by monophasic – remarkably nocturnal activity. The dependence of the phytocenosis characteristics and spatial distribution of rodents was revealed for the daily activity of bank vole and twilight−dawn activity of both species. At dawn and dusk voles and mice were active in places with high vegetation. The density of undergrowth was the most important feature for bank voles during the day.
Źródło:: Sylwan; 2018, 162, 12; 1029-1037
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A new reconstruction of multituberculate endocranial casts and encephalization quotient of Kryptobaatar
Autorzy:: Kielan-Jaworowska, Z
Lancaster, T.E.
Powiązania:: https://bibliotekanauki.pl/articles/21906.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: brain structure
multituberculata
Late Cretaceous
Mongolia
body mass
Kryptobaatar
new reconstruction
endocast
encephalization quotient
Multituberculata
paleontology
Opis:: Multituberculate and eutriconodontan endocasts differ from those of primitive therian mammals in their lack of visible midbrain exposure on the dorsal side and in having a vermis−like triangular bulge (recognized herein as the cast of a large sinus—the superior cistern) inserted between the cerebral hemispheres. As the shape and proportions of multituberculate, eutriconodontan, and Cretaceous eutherian endocasts are otherwise similar, one might speculate that the multituberculate and eutriconodontan brains did not differ essentially from those of primitive eutherian and marsupial mammals, in which the midbrain is exposed dorsally. This conclusion might have important phylogenetic implications, as multituberculates and eutriconodontans may lay closer to the therians sensu strico, than hitherto believed. We describe an endocast of the Late Cretaceous multituberculate Kryptobaatar, which differs from those of other multituberculates (Ptilodus, Chulsanbaatar, and Nemegtbaatar) in having unusually long olfactory bulbs and the paraflocculi elongated transversely, rather than ball−shaped. We estimate the encephalization quotient (EQ) of Kryptobaatar, using: 1) Jerison’s classical equation (1) based on estimation of endocranial volume and body mass; 2) McDermott et al.’s derived body mass estimation equation (2) using upper molar lengths; and 3) estimation of body mass based on new equations (3a, 3b, 3c, and 3d₁₋₉), which we propose, using measurements of the humerus, radius, ulna, femur and tibia. In both Jerison’s method and a mean of our series of derived formulae, the EQ varies around 0.71, which is higher than estimated for other multituberculate mammals. It remains an open question whether the evolutionary success of Kryptobaatar(which was a dominant mammal during the ?early Campanian on the Gobi Desert and survived until the ?late Campanian) might have been related to its relatively high EQ and well developed sensorimotor adaptations, in particular olfaction and coordinated movements.
Źródło:: Acta Palaeontologica Polonica; 2004, 49, 2
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Catopsalis (Multituberculata) from Asia and North America and the problem of taeniolabidid dispersal in the Late Cretaceous
Catopsalis (Multituberculata) z Azji i z północnej Ameryki oraz problem migracji taeniolabididae w późnej kredzie
Autorzy:: Kielan-Jaworowska, Z.
Sloan, R.E.
Powiązania:: https://bibliotekanauki.pl/articles/20844.pdf
Data publikacji:: 1979
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Źródło:: Acta Palaeontologica Polonica; 1979, 24, 2
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: First ? cimolodontan multituberculate mammal from South America
Autorzy:: Kielan-Jaworowska, Z
Ortiz-Jaureguizar, E.
Vieytes, C.
Pascual, R.
Goin, F.J.
Powiązania:: https://bibliotekanauki.pl/articles/20688.pdf
Data publikacji:: 2007
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: Argentina
mammal
Cretaceous
Argentodites coloniensis
new species
new genus
La Colonia Formation
South America
Multituberculata
paleontology
Cimolodonta
Opis:: We describe a Cretaceous ?cimolodontan multituberculate p4 from South America, for which we erect the new genus and species Argentodites coloniensis. This new taxon is represented by an isolated ?left p4 from the Upper Cretaceous (?Campanian or Maastrichtian) La Colonia Formation of Patagonia (Fig. 1). It has a strongly convex anterior margin and prismatic enamel, which attest to its cimolodontan nature, while the previously known p4 (MACN−RN 975) from the Late Cretaceous Los Alamitos Formation is roughly rectangular, suggesting “plagiaulacidan” affinity. The presence of normal prismatic enamel in Argentodites suggests similarities to Ptilodontoidea. However, it differs from the Late Cretaceous and Paleocene Laurasian cimolodontans (including Ptilodontoidea) in having a long, straight posterior margin, a nearly straight dorsal margin, characteristic of some “Plagiaulacida”, and in having the lingual side close to the mirror image of the labial side, the character that poses difficulties in establishing whether it is a right or left tooth. Because of these differences we assign Argentodites to ?Cimolodonta, tentatively only, superfamily and family incertae sedis.
Źródło:: Acta Palaeontologica Polonica; 2007, 52, 2
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki