Wyniki wyszukiwania - Biblioteka Nauki

1

Prof.dr hab.Andrzej Myrcha [1939-1997]

100%

Konarzewski M. , Taylor J. R. E.

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nr 2

133-136

2

Comparing life histories of shrews and rodents

100%

Gliwicz J. , Taylor J. R. E.

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tom 47

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nr 1

EN

Small insectivores and rodents, despite similarities in body size and attributes scaling to body size, exhibit significant differences in other properties, including many life history traits. In this article major differences between life history traits of the two taxa are reviewed, with an indication of contrasting selection pressures related to somewhat different body size, as well as to differences in metabolic rates, diet and exposure to predation. Additionally, since the life history differences between small mammals are particularly well pronounced in highly seasonal habitats, the winter ecology of shrews and rodents is compared. Finally, the two different reproductive strategies typical for soricine shrews and small nonhibernating rodents, are presented. In conclusion, it is proposed that the reproduction delayed to the second calendar year of life in shrews is the result of selection for traits ensuring successful survival in winter, a period that is more perilous for shrews than for rodents. In rodents, in contrast, opportunistic reproduction is the most prominent characteristic which also helps to maximize their reproductive output. This ability for high reproduction seems to be the main antipredatory measure selected for in rodent evolution.

3

Pierwsze stwierdzenia Coenagrion armatum (CHARPENTIER, 1840) (Odonata: Coenagrionidae) w Kotlinie Biebrzańskiej

80%

Henel A. , Taylor J. R. E. , Krajewski L.

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tom 34

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nr 2

4

Występowanie i wybiórczość siedliskowa iglicy małej Nehalennia speciosa (Charpentier, 1840) (Odonata: Coenagrionidae) w dolinie Biebrzy

80%

Frackiel K. , Henel A. , Taylor J. R. E.

Odonatrix. Biuletyn Sekcji Odonatologicznej Polskiego Towarzystwa Entomologicznego

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2013

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tom 09

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nr 2

EN

Eight new localities of Nehalennia speciosa (Charpentier, 1840) were found in the Biebrza river valley, NE Poland, six of them in the Biebrza National Park (Figs 1, 2). The Biebrza river valley is famous as the largest complex of marshes in Poland and in Central Europe. N. speciosa has never been recorded there before. Six out of eight localities were found in the southern basin of the river that is best preserved, with vast areas of fen mires. The locality "Osowiec-Twierdza" (Fig. 1) represents small dystrophic water bodies with the Sphagnum moss mat; N. speciosa is present in the nearby Carex rostrata swamp. Habitats of the other seven localities (fen mires) are different from those most typical of the species in Poland as they do not contain Sphagnum. Additionally, these fen mires are floristically rich in comparison with many other habitats of A', speciosa in Poland. Locality "Bagno Ławki" is especially untypical as the plant community there is dominated by Equi- setum fluviatile that is known from only very few other localities of N. speciosa in Poland. Special feature of five out of six localities in the lower basin of the Biebrza valley is the dominance of Carex rostrata that is a common characteristic of the localities in eastern Poland. The presence of N. speciosa, recorded in vast areas of fen mires of the Biebrza valley may suggest that other localities of the species are to be discovered there.

5

Najbliżej natury - Instytut Biologii Wydziału Biologiczno-Chemicznego Uniwersytetu w Białymstoku

80%

Wróblewska A. , Taylor J. R. E. , Zieliński P. , Jekatierynczuk-Rudczyk E.

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tom nr 2

70--72

6

Live-trapping small mammals under snow: a protocol for maximising captures and minimising mortality

70%

Rychlik L. , Churchffig.,ref.ield S. , Taylor J. R. E. , Kardynia P. , Oldakowski L.

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nr 3

EN

Difficulties in investigating shrews in the wild in winter, especially in trapping them and keeping them alive during live-trapping studies, have been the main reason for serious deficiencies in our knowledge of their ecology. We developed a live-trapping protocol which allowed us to maximise capture rates and minimise mortality of shrews. We used wooden box traps with a nest-chamber, which we set in plywood ‘chimneys’ with removable roofs. Chimneys facilitated suitable positioning of traps and protected them from being blocked by snow. This resulted in a high trappability (up to 20.2 shrews and 8.2 voles per 1000 trap hours), a large proportion of recaptures (most shrews were recaptured, often repeatedly) and a very low mortality rate (<0.09 shrews and 0 rodents per 1000 trap hours) despite sub-zero temperatures and deep snow cover. This allowed us to pursue an intensive live-trapping study, using the CMR-method, of shrews wintering in the Narewka river valley (north-east Poland). Because of the high trappability and minimal mortality, the presented protocol can be recommended to study winter ecology and conservation biology of such fragile and strictly protected small mammals as shrews.