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1

Nocek duzy pobil rekord

100%
Kokurewicz T.
Biuletyn Polskiego Towarzystwa Ochrony Przyrody "Salamandra"
|
2000
|
nr 1
15-16
2

Sex and age related habitat selection and mass dynamics of Daubenton's bats Myotis daubentonii (Kuhl, 1817) hibernating in natural conditions

100%
Kokurewicz T.
Acta Chiropterologica
|
2004
|
tom 06
|
nr 1
The selection of optimal hibernation temperature (TH) was possible by bats changing both the distance at which they roosted from the mine entrance (D) (TH versus D; r s= 0.73, n = 615, P < 0.001), and the height of hibernation place (H) (TH vs. H; r s= 0.16, n = 412, P < 0.01). Bats were able to select areas of high relative humidity (RH) by roosting in low temperature (RH vs. TH; r s= -0.26, n = 366, P < 0.001) and/or by selecting hibernation places situated lower on the mine walls (RH vs. H; r s= -0.61, n = 280, P < 0.001). Sub-adult bats (identified by presence of the black chin spot) were found to hibernate at significantly lower temperatures (Z = -3.1, n 1 = 164, n 2 = 41, P < 0.01) and in places situated lower on the mine walls (Z = -2.2, n 1 = 164, n 2, = 41, P < 0.05) than adult individuals. In March sub-adults hibernated closer to the entrance than adult individuals (χ2 = 8.18, d.f. = 1, P < 0.01). The difference in average body condition index between sub-adult and adult bats recorded in March (one-way ANOVA, F = 6.56, error d.f. = 51, P < 0.05) made individuals in their first year of life more prone to starvation at the end of hibernation period. In this month the significantly smaller distance of hibernation place of sub-adult individuals from the mine entrance (Z = -2.7, n 1 = 58, n 2, = 19, P < 0.01), resulted in significantly lower hibernation temperature, making them more endangered by predation of mammalian and avian species than adult bats hibernating deeper in the mine. The linear (r = 0.87, d.f. = 30, P < 0.001) relationship between body mass at the beginning and end of hibernation (November and March) of uniquely marked individuals indicates these bats did not forage in winter and their energy use was exclusively dependent on fat reserves accumulated prior to hibernation. The significant relationship between body mass in November and total mass loss (r = 0.59, d.f. = 30, P < 0.001) could indicate the possibility of existence of another factor, or group of factors, that could increase the energy use in hibernating M. daubentonii. These may include mating and/or energy costly defence against predators.
3

IV Europejskie Sympozjum Badań nad Nietoperzami, Praga, 18-23 VIII 1987

100%
Kokurewicz T.
Przegląd Zoologiczny
|
1988
|
tom 32
|
nr 2
4

Współwystępowanie gatunków nietoperzy w skupieniach podczas zimowania w podziemiach Centralnego Odcinka Frontu Umocnionego Łuku Odry i Warty

63%
Boratynski J., Kokurewicz T.
Nietoperze
|
2011
|
tom 12
|
nr 1-2
5

Nowe stwierdzenie rozrodu borowiaczka Nyctalus leisleri (KUHL, 1817) w województwie lubuskim

63%
Apoznanski G., Kokurewicz T.
Parki Narodowe i Rezerwaty Przyrody
|
2018
|
tom 37
|
nr 3
6

Age related variation in the energy costs of torpor in Daubenton's bat: effects on fat accumulation prior to hibernation

63%
Kokurewicz T., Speakman J. R.
Acta Chiropterologica
|
2006
|
tom 08
|
nr 2
Insectivorous bats in their first year of life generally deposit less fat prior to hibernation than older bats of the same species. In the present study we explored the energy expenditures of first-year (sub-adult) and older than one year (adult) Daubenton's bats (Myotis daubentonii) during torpor and their patterns of roost site selection and fat accumulation in an artificial roost site, removing from the equation the effects of differences in aerial foraging behaviour by feeding them on non-aerial prey (mealworms). Sub-adult bats had oxygen consumption during torpor that averaged 2.75 × greater than adult individuals. In an artificial enclosure in which bats could fly freely and choose whether to roost inside or outside of a hollow brick, sub-adults gained body mass at a significantly lower rate (67.8 mg × day−1) than adults (100.3 mg × day−1), despite being fed non-aerial prey (mealworms). The difference in rates of mass accumulation (32.5 mg per day) far exceeded the theoretical influence of different metabolic rates (7 mg × day−1) in torpor. Despite lower rates of mass gain in this artificial situation, sub-adults ultimately achieved the same mass accumulation as adults because they continued to accumulate fat for a longer period, an option that might be unavailable to them in the wild as feeding conditions deteriorate. The rate of body mass accumulation was positively correlated with the time spent utilising the brick roost site, but utilisation of this site did not differ significantly between age classes. These data support the hypothesis that differences in the accumulation of fat between age classes may reflect in part differences in expenditure as well as differences in food intake, but the contribution of differences in metabolism during torpor are relatively small.
7

Zmiany liczebnosci i skladu gatunkowego nietoperzy hibernujacych w jaskiniach Gory Polom [Gory Kaczawskie, Sudety Zachodnie] w latach 1964-2001

51%
Klis T., Furmankiewicz J., Kokurewicz T.
Studia Chiropterologica
|
2001
|
tom 02
47-66
8

Selekcja siedlisk podkowca malego Rhinolophus hipposideros w Masywie Snieznika [Sudety Wschodnie] w okresie zimowania i rozrodu - implikacje dla ochrony gatunku

51%
Kokurewicz T., Rusinski M., Haddow J., Furmankiewicz J.
Przyroda Sudetów
|
2008
|
nr Supl.3
7-26
9

Zmiany liczebności nietoperzy w podziemiach obszaru Natura 2000 PLH 080003 "Nietoperek" poza okresem hibernacji i problemy ochrony największego zimowiska tych ssaków w Polsce

51%
Apoznanski G., Kokurewicz T., Rusinski M., Gorska M.
Przegląd Przyrodniczy
|
2018
|
tom 29
|
nr 3
10

Clustering behavior in wintering greater mouse-eared bats Myotis myotis — the Effect of micro-environmental conditions

45%
Boratynski J. S., Rusinski M., Kokurewicz T., Bereszynski A., Wojciechowski M. S.
Acta Chiropterologica
|
2012
|
tom 14
|
nr 2
During monthly bat surveys carried out in winters of 2008/2009 and 2009/2010 we studied clustering behavior of greater mouseeared bats (Myotis myotis) hibernating in the Międzyrzecz Fortified Front (MFF) in western Poland. Since the behavior of hibernating bats is usually affected by varying environmental conditions we measured changes in the ambient temperature (Ta and water vapor pressure (WVP) and their variability in the selected areas and analyzed the relationship between clustering behavior of hibernating bats and abiotic conditions. In both winters, the number of solitarily roosting individuals of M. myotis decreased from autumn to spring while the highest number of bats hibernating in clusters was recorded in the middle of winter. The number of clusters did not change significantly over the winter, but the number of individuals within a particular cluster increased from November (median = 5, inter-quartile range, IQR = 5-8) to March (median = 20, IQR = 14-35.5). The changes of the clusters' size were best explained by a mixed model with WVP and the variability in WVP over the 20 days prior to the bat survey as explanatory variables. As WVP and the variability in WVP decreased, the number of individuals in a cluster increased. Also, Ta affected the size of clusters. However, neither of the models supported the hypothesis of the effect of variability of Ta on clustering of M. myotis. We propose that huddling enables bats to reduce evaporative water loss during the middle and at the end of the hibernation and reduces costs of spring arousals, perhaps by synchronizing them between clustered individuals and thus allowing the use of passive re-warming.
11

The analysis of hair coat of Daubenton’s bat (Myotis daubentonii)

39%
Jankowska D., Janczak M., Patkowska-Sokola B., Bodkowski R., Czyz K., Kokurewicz T.
Zeszyty Naukowe Uniwersytetu Przyrodniczego we Wrocławiu. Biologia i Hodowla Zwierząt
|
2014
|
tom 75
12

Zimowe stanowiska nietoperzy na Ziemi Klodzkiej

39%
Buric Z., Furmankiewicz J., Furmankiewicz M., Klodek R., Kokurewicz T., Telatynski S.
Szczeliniec
|
2001
|
tom 05
149-168
13

Sklad gatunkowy i liczebnosc nietoperzy [Chiroptera] w Kotlinie Klodzkiej

39%
Kokurewicz T., Furmankiewicz J., Zajac T., Charaziak-Kovacs A., Furmankiewicz M., Gwozdz M., Telatynski S.
Przyroda Sudetów Zachodnich
|
2003
|
tom 06
171-186
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