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Alpha-amylase in the serum and tissues of rabbits and the effect of vitamin C on its activity

100%

Nagorna-Stasiak B. , Lazuga-Adamczyk A. , Kolodynska M.

tom 38

nr 1

The effect of animal-assisted activities (AAA) involving a dog on pre-school children in the light of their parents’ opinions

84%

Ciesla A. , Mazan J.

nr 4

Cavity roost site availability and habitat use by bats in different aged riparian cottonwood stands

67%

Swystun M. B. , Lane J. E. , Brigham R. M.

nr 1

Riparian forests provide important roosting habitat, abundant prey and access to drinking water for many bat species but to date there has been little research on the differential quality of habitats within riparian areas. We quantified the density of potential roost cavities in three age classes (i.e., young: ca. 20 years, mature: ca. 60 years, and old: ca. 100 years) of riparian cottonwood (Populus deltoides) forest stands. Bat activity was also sampled using acoustic detectors in one representative stand of each age class. Stands were situated along an 80 km stretch of the Missouri River in southeastern South Dakota and northwestern Iowa, USA. We predicted the highest density of potential roosts and the highest activity of bats to occur in the oldest age class. Contrary to our predictions, and previous work in aspen dominated upland sites, we found that the density of potential roosts was not significantly different between mature and old stands. However, there were no potential roosts in young stands. Data from guano traps verified the use of a number of cavities in both mature and old stands. Both commuting and foraging activities were highest in the mature, relative to the old and young stand. In total, our data indicate that mature and old stands represent high quality roosting habitat, with the mature being used preferentially for commuting and foraging. Trees in the oldest stands, however, are nearing the end of their lifespan and falling. Younger cohorts must therefore be retained for future recruitment of natural cavities.

Preliminary study of memory processes in Mongolian gerbil (Meriones unguiculatus)

67%

Goral-Radziszewska K. , Kadziela K. , Olszewska M. , Drobik-Czwarno W. , Fiszdon K. , Jungnikel T.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

2017

tom 56[2]

Preliminary study of memory processes in Mongolian gerbil (Meriones unguiculatus). Mongolian gerbil (Meriones unguiculatus) a small rodent living in the wild steppes of Mongolia was discovered in 1866 and it is becoming increasingly popular as a pet. The present work is an introduction to describe the behavior of this species and to investigate the influence of gender and age on memory process. 40 gerbils divided into four study groups (young males, young females, adult males, adult females) were twice tested in a modified version of the Lashley III maze (repeat after a week). Using statistical tests memory parameters, the activity of animals and behavior associated with the level of stress were analyzed. Conducted observations and calculations performed showed no difference between the groups (p > 0.05), which leads to the conclusion that in Mongolian gerbils age and sex have no effect on memory.

Wstępne badanie procesów pamięciowych u myszoskoczka mongolskiego (Meriones unguiculatus).Myszoskoczek mongolski (Meriones unguiculatus) to mały gryzoń dziko żyjący na stepach Mongolii, odkryty w 1866 roku i stający się coraz bardziej popularny jako zwierzę domowe. Niniejsza praca stanowi wprowadzenie do opisania zachowania tego gatunku oraz zbadanie wpływu płci i wieku na procesy pamięci. 40 myszoskoczków podzielonych na cztery badane grupy (młode samce, młode samice, dorosłe samce, dorosłe samice) zostało dwukrotnie zbadanych zmodyfikowaną wersją labiryntu Lashley'a III (powtórzenie po tygodniu). Za pomocą testów statystycznych analizowano procesy pamięciowe, aktywność zwierząt oraz zachowania związane z poziomem stresu. Przeprowadzone analizy nie wykazały różnic między grupami (p > 0.05), co prowadzi do wniosku, że u myszoskoczków mongolskich wiek i płeć nie mają wpływu na procesy pamięciowe.

Okazywanie i wykrywanie rui - rola nowych technologii

51%

Fricke P. M. , Valenza A.

nr 2

Wpływ światła księżyca na aktywność lotu sówek (Noctuidae)

42%

Lipa J. J.

nr 1-2