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Gonad of Helix pomatia in annual cycle

100%

Juchno D.

Folia Malacologica

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1999

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tom 07

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nr 4

2

Urban drainage systems as important bat hibernacula in Poland

100%

Wojtaszyn G., Rutkowski T., Stephan W., Kozirog L.

Fragmenta Faunistica

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2013

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tom 56

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nr 1

The results of winter checks in drainage systems of three cities in northern Poland are presented. The analysis of importance of this type of roosts for hibernating bats is conducted. In total 7524 bats were counted in the winter 2013: 3412 individuals in Olsztyn, 3403 in Piła and 709 in Koszalin. Higher number of bats than in rainwater sewers of Olsztyn and Piła was observed in Nietoperek Reserve only. Six bat species were recorded in checked rainwater sewage systems: Myotis nattereri, Myotis daubentonii, Myotis myotis, Plecotus auritus, Barbastella barbastellus and bats from Myotis mystacinus complex. Urban sewage systems are important especially for Myotis nattereri. This species dominates in all checked objects, with 3314 individuals in Olsztyn, 2532 in Piła and 597 in Koszalin. Given the sheer size of the drainage systems, this type of roosts may belong to the most important hibernation sites, particularly for M. nattereri and M. daubentonii.

3

Seasonal modulation of interferon response in spotted sousliks [Spermophilus suslicus]

100%

Kandefer-Szerszen M., Meczynski S., Borowska L., Szuster-Ciesielska A., Rzeski W.

Archivum Immunologiae et Therapiae Experimentalis

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1994

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tom 42

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nr 5-6

4

Effect of hibernation on sodium and chloride ion transport in isolated frog skin

100%

Kosik-Bogacka D. I., Tyrakowski T.

Folia Biologica

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2007

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tom 55

|

nr 1-2

5

The content of purine nucleotides in the life cycle and winter numbness state in snail Helix aspersa maxima

100%

Rac M., Safranow K., Machoy Z.

Polish Journal of Natural Sciences

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2002

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tom 10

6

Sulfurtransferase activity and sulfur compound content in Rana temporaria brain following hibernation

100%

Wrobel M.

Acta Neurobiologiae Experimentalis

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2001

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tom 61

|

nr 1

7

Cytosolic phospholipase A2 regulation in the hibernating thirteen-lined ground squirrel

84%

Woods A. K., Storey K. B.

Cellular and Molecular Biology Letters

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2007

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tom 12

|

nr 4

621-632

Cytosolic calcium-dependent phospholipase A2 (cPLA2) has multiple roles including production of arachidonic acid (a key player in cellular signaling pathways) and membrane remodeling. Additionally, since catabolism of arachidonic acid generates free radicals, the enzyme is also implicated in ischemic injury to mammalian organs. Regulation of cPLA2 could be important in the suppression and prioritization of cellular pathways in animals that undergo reversible transitions into hypometabolic states. The present study examines the responses and regulation of cPLA2 in skeletal muscle and liver of hibernating thirteen-lined ground squirrels, Spermophilus tridecemlineatus. cPLA2 activity decreased significantly by 43% in liver during hibernation, compared with euthermic controls, and Km values for arachidonoyl thio-PC substrate fell in both organs during hibernation to 61% in liver and 28% in muscle of the corresponding euthermic value. To determine whether these responses were due to a change in the phosphorylation state of the enzyme, Western blotting was employed using antibodies recognizing phospho-Ser505 on α-cPLA2. The amount of phosphorylated α-cPLA2 in hibernator liver was just 38% of the value in euthermic liver. Furthermore, incubation of liver extracts under conditions that enhanced protein phosphatase action caused a greater reduction in the detectable amount of phospho-Ser505 enzyme content in euthermic, versus hibernator, extracts. The data are consistent with a suppression of cPLA2 function during torpor via enzyme dephosphorylation, an action that may contribute to the well-developed ischemia tolerance and lack of oxidative damage found in hibernating species over cycles of torpor and arousal.

8

Animal responses to extreme conditions: a lesson to biomedical research

84%

Caputa M.

Journal of Physiology and Pharmacology. Supplement

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2006

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tom 57

|

nr 8

7-15

Various animals must cope with some specific extreme environmental conditions and, as a consequence, they developed extremely efficacious adaptive defence responses. The mechanisms of the specific defences are more clearly visible in some species than in humans. Therefore, animal models of the human defence mechanisms should be selected accordingly. The appropriate, well responding models may be regarded as "biological amplifiers". This review is focussed on examples of effective defence against: (i) parturitional asphyxia, which extends fertility of mammals; (ii) diving asphyxia, which extends access of food in aquatic birds and mammals; (iii) endotoxemia, which provides survival of the fittest in mammals showing top fertility; (iv) deep hypothermia, which enables hibernating mammals to arouse. Each of the defences needs close co-operation of the cardiovascular, respiratory and temperature regulatory systems. Underlined problems regarding a choice of appropriate experimental animal models should stimulate renaissance of comparative physiology.

9

The influence of hibernation on Dendrolimus pini haemocytes

84%

Kedra E., Bogus M. I.

Pestycydy

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2005

|

nr 4

139-142

10

Maternal effect on the commencement of hibernation and body mass of the juvenile edible dormouse Glis glis in captivity

84%

Jurczyszyn M., Marchewka A., Czapracka A., Karminska L.

Polish Journal of Ecology

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2018

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tom 66

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nr 1

The aim of our study was to check whether maternal presence during the post-weaning period affects the onset of hibernation and weight gain under unlimited food supply in juvenile edible dormice Glis glis. We investigated four groups of siblings growing up in the presence of the mother (“with mother”; n=17) and three groups of juveniles separated from the mother after weaning (“without mother”, n = 17). We found that: (i) more juveniles started hibernation from the group “without mother” than from the group “with mother” (χ² = 8.24, P < 0.01) at the end of study, when most dams entered hibernation, (ii) weight was not a factor which determined the decision of entering hibernation (iii) juveniles growing up “without mother” did not differ significantly from juveniles raised “with mother” in terms of mean body mass during the last weighing before hibernation (t = 0.48, P = 0.63) and maximum body mass (t = 0.11, P = 0.91), (iv) the presence of the mother may influence the process of making decisions by juveniles about terminating activity and entering hibernation.

11

Evidence of non-hibernation in Cantabrian brown bears

84%

Nores C., Ballesteros F., Blanco J. C., Garcia-Serrano A., Herrero J., Palomero G.

Acta Theriologica

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2010

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tom 55

|

nr 3

203-209

Evidence of non-hibernation in brown bears Ursus arctos Linnaeus, 1758 on the Iberian Peninsula has existed since the Middle Ages. We systematically monitored brown bears in the Cantabrian Mountains (Northern Spain) by recording tracks and sightings from 1998 to 2007 to document hibernation behaviour. Our results indicate that females with yearlings and solitary yearlings were more active in winter than bears over two years old. Intensive snow tracking and direct observations of five family groups indicated that they travelled, fed and defecated in winter, which are activities not compatible with the physiological state of hibernation. Also, based on tracking data, the maximum period between two consecutive locations of active family groups in winter was less than that needed by bears to emerge from a state of hibernation (6 days). We conclude that the family groups which we monitored in winter did not hibernate.

12

Aerobic microflora of Myotis myotis [Borkhausen, 1797] and Barbastella barbastellus [Schreber, 1774]

84%

Rozalska B., Radzicki G., Sadowska B., Markowski J., Rudnicka W.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1998

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tom 46

|

nr 2

13

Winter mortality rates of bats inhabiting man-made shelters [Northern Poland]

84%

Ruczynski I., Ruczynska I., Kasprzyk K.

Acta Theriologica

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2005

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tom 50

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nr 2

Non-predator and non-accidental mortality rates of bats inside the city of Toruń's fortification system (northern Poland) were studied over winter periods from 1995 to 2000. The bats were counted and dead bats collected at 1-month intervals from October to April. In total, thirty four dead bats were found. The percentage of dead individuals of the surveyed bats was low:Myotis daubentonii (0.6%),M. nattereri (0.4%),Plecotus auritus (0.4%),M. myotis (0.1%), and zero forBarbastella barbastellus. There was no clear difference in the species ratio of the observed and dead bats. The percentage of the dead to surveyed bats was lower in November (0.07%) and December (0.07%), and higher in September (3.3%) and April (1.3%). Temperature explained 84% of variation of the differences in mortality rates. Observations suggest that non-predator and non-accidental mortality inside the fortifications was extremely low and non-linearly correlated with the ambient temperature measured outside the fortifications.

14

Testis development and testosterone secretion in captive European ground squirrels before, during, and after hibernation

84%

Strauss A., Hoffmann I. E., Vielgrader H., Millesi E.

Acta Theriologica

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2008

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tom 53

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nr 1

In some hibernating species, an extended euthermic period before spring emergence has been reported during which testicular maturation occurred. In this study, we investigated whether male European ground squirrels Spermophilus citellus (Linnaeus, 1766) develop scrotal testes before or after the termination of hibernation. The course of testis development and testosterone concentrations were examined in young-of-year male ground squirrels (n = 4) before, during, and after their first hibernation. In the environmental chamber, all animals showed regular hibernation patterns with decreasing torpor bout lengths prior to the end of hibernation. Four weeks before hibernation ended, testosterone levels were elevated during spontaneous arousals. Testosterone concentrations peaked during the first 2 months post heterothermy and decreased thereafter. In 2 experimental males, testes descended from the inguinal region into the scrotum shortly before the end of heterothermy. The state of testis development and testosterone secretion corresponded to that found in semi-free-living males at spring emergence. Testis size increased in active animals to maximum widths during weeks 3 and 4 post heterothermy. Scrotal skin pigmentation was absent until heterothermy ended and developed during the first month thereafter. The data suggest that male S. citellus do not need a pre-emergence euthermic period for reproductive development.

15

Thermal energetics of torpid silver-haired bats Lasionycteris noctivagans

84%

Dunbar M. B.

Acta Theriologica

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2007

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tom 52

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nr 1

Heterothermic endotherms can reduce energy expenditure by using controlled reductions in various physiological processes, collectively called torpor. Torpor is an important mechanism which allows many small endotherms to survive seasonal periods of inactivity, but there are few data on metabolic rate during torpor (TMR) for small, tree-living bats during winter. Therefore, I report TMR of silver-haired batsLasionycteris noctivagans (LeConte, 1831) measured at various ambient temperatures (Ta). Bats were captured in October 2004 in southwestern Missouri, USA. NoL. noctivagans had been captured at this time in this area previously. Mean body mass of 3 individuals was 10.49 g±0.3 SE. TMR varied with Ta and mean TMR was lowest at 5°C at 0.363 ml O2/h (2.03 mW). These data indicate that the TMR ofL. noctivagans is similar to another migratory, tree-roosting bat (the eastern red batLasiurus borealis; Müller, 1776), and suggest that Ta near 5°C is energetically optimal for hibernatingL. noctivagans in this area.

16

Diapauza owadów i roztoczy a ochrona roślin przed szkodnikami

67%

Boczek J.

Wiadomości Entomologiczne

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2008

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tom 27

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nr 1

39-48

Forms of reaction to environmental conditions in insects and mites, and the onset, maintenance and termination of diapause are described. The influence of diapause on the population level of plant pests are given.

17

Histological and ultrastructural changes of the tongue in red-eared turtle (Trachemys scripta elegans) after hibernation

67%

Marycz K., Kleckowska-Nawrot J., Maksymowicz K., Kalinski K.

Electronic Journal of Polish Agricultural Universities. Series Veterinary Medicine

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2009

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tom 12

|

nr 2

18

Winter feeding by bats in Missouri

67%

Dunbar M. B., Whitaker, Jr. J. O., Robbins L. W.

Acta Chiropterologica

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2007

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tom 09

|

nr 1

19

Control of codling moth in Bulgaria with a combination of Isomate C Plus dispensers and the baculovirus product Madex

67%

Kutinkova H., Samietz J., Dzhuvinov V.

Journal of Plant Protection Research

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2010

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tom 50

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nr 4

In the years 2007–2009, trials on control of codling moth (CM), Cydia pomonella (L.), were carried out in apple orchards of South-East Bulgaria, where the pressure of the pest was very high. Mating disruption with Isomate C plus dispensers was applied in combination with sprays of the virus product Madex®. With a single installation of Isomate C plus dispensers per season + 4 treatments of Madex® at 100 ml per ha against the first and 6 treatments against the second generation, fruit damage at harvest and population density of codling moth were kept at a low level. At the same time fruit damage and population density of the pest, as estimated by the hibernating CM larvae population, was very high in the conventionally treated orchard serving as a reference. Using Isomate C plus dispensers and the baculovirus product Madex® may be a promising alternative to traditional programmes trying to control high initial infestation of codling moth. For Bulgaria, the combined tested strategies of mating disruption and virus control are suggested for control of codling moth in the orchards with CM population density of more than 3 larvae per tree or more than 5% fruit damage in the previous year.

20

Seasonal changes of cave-dwelling bat fauna, and their relationship with microclimate in Dupnisa Cave System (Turkish Thrace)

67%

Paksuz S., Ozkan B., Postawa T.

Acta Zoologica Cracoviensia. Ser.A Vertebrata

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2007

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tom 50A

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nr 1-2

Ograniczanie wyników

Gonad of Helix pomatia in annual cycle

Urban drainage systems as important bat hibernacula in Poland

Seasonal modulation of interferon response in spotted sousliks [Spermophilus suslicus]

Effect of hibernation on sodium and chloride ion transport in isolated frog skin

The content of purine nucleotides in the life cycle and winter numbness state in snail Helix aspersa maxima

Sulfurtransferase activity and sulfur compound content in Rana temporaria brain following hibernation

Cytosolic phospholipase A2 regulation in the hibernating thirteen-lined ground squirrel

Animal responses to extreme conditions: a lesson to biomedical research

The influence of hibernation on Dendrolimus pini haemocytes

Maternal effect on the commencement of hibernation and body mass of the juvenile edible dormouse Glis glis in captivity

Evidence of non-hibernation in Cantabrian brown bears

Aerobic microflora of Myotis myotis [Borkhausen, 1797] and Barbastella barbastellus [Schreber, 1774]

Winter mortality rates of bats inhabiting man-made shelters [Northern Poland]

Testis development and testosterone secretion in captive European ground squirrels before, during, and after hibernation

Thermal energetics of torpid silver-haired bats Lasionycteris noctivagans

Diapauza owadów i roztoczy a ochrona roślin przed szkodnikami

Histological and ultrastructural changes of the tongue in red-eared turtle (Trachemys scripta elegans) after hibernation

Winter feeding by bats in Missouri

Control of codling moth in Bulgaria with a combination of Isomate C Plus dispensers and the baculovirus product Madex

Seasonal changes of cave-dwelling bat fauna, and their relationship with microclimate in Dupnisa Cave System (Turkish Thrace)