Reproduction and behavior of plateau pikas (Ochotona curzoniae Hodgson) under predation risk: A field experiment

The mixture of the feces and urine of the red fox (Vulpes vulpes Linnaeus) was used to increase the perception of predation risk of plateau pikas (Ochotona curzoniae Hodgson) in the field. The influence of the predation risk on the reproduction and behavior of plateau pikas was examined through comparing reproductive characteristics and five different kinds of behavior between treatment and control plots. The results showed that 1) the body weight of the pikas was not significantly different between treatment and control plots. 2) The reproductive period of the pikas extended from March to later August in both treatment and control plots. The pregnant ratio, developed testes ratio, reproductive success and sex ratio of the pikas were not significantly different between the treatment and control plots. 3) The pikas increased their observing and calling frequencies and decreased their moving and feeding frequencies when exposed to red fox's feces and urine. 4) The increased red fox's feces and urine had no influence on the behavior of the pikas when the number of their natural enemies increased; the pikas obviously increased the observing frequencies and sharply decreased the calling frequency so as to decrease the direct predation risk. 5) There were no significantly behavioral differences between males and females as well as between adults and young. 6) The results reject the hypothesis 1 that the red fox's feces and urine as indirect predation risk suppresses the reproduction of the pikas and support the hypothesis 2 that the pikas can make decision by changing behavior to avoid the predation risk they encountered whenever.

Effect of burrowing activity of root vole (Microtus oeconomus Pallas) on plant diversity in alpine meadow

Herbivory and burrowing activity of mammals may influence the species composition and diversity of plant communities. The effect of corridors and holes systems constructed by root vole (Microtus oeconomus Pallas) on the plant species diversity was studied in the habitat of high - mountain meadow (3250 in a.s.l in Qinghai-Tibet Plateau, China). By using grid method, these disturbances were studied on 16 plots (100 cm x 100 cm) distributed in 4 transects in studied area, in August 2000 and 2001. The disturbance intensity index, D, was calculated as the percent of the ground surface disturbed by voles in the study area. Plant species were identified and counted on the same plots. In total 46 plant species were identified - 39% of this number was considered as sensitive to the vole disturbances as their occurrence and/or abundance decreased along the disturbance intensity. Generally, a significantly negative correlation (r = - 0.911 P < 0.01) between vole aboveground disturbances and plant species diversity (H') was found. The results suggest that root vole ground disturbances, especially in the form of actively utilized holes and corridors have significantly negative influence on plant species diversity in high-mountain grassland habitat.

Local warming about 1.3 degrees C in alpine meadow has no effect on root vole (Microtus oeconomus L.) population during winter

The influence of air and soil warming on root vole (Microtus oeconomus L.) population was studied in winter period in top open chambers (OTC) (0.8-1.8 m(2) warmed by conical fiberglass material and situated in alpine meadow (3250 m) at Qinghai-Tibet Plateau, China. The OTCs were distributed on an area of 30 x 30 m of experimental warming site; another site of the same area was a control one. The root vole population was investigated on two pairs of sites in "low-grazing" and "high-grazing" (by sheep) parts of the meadow; mark-recapture method was used. The winter-season averaged air and soil temperature inside of the chambers were 1.3 degrees C higher than the temperature outside the chambers. The warming in the chambers had no statistically significant effect on root vole numbers, on average body mass of individual, and on average body mass of males and females. In conclusion, as small as 1.3 degrees C warming of soil and air introduced locally and on small (several m(2)) scale, in the alpine meadow habitat in winter period, has possibly no effect on root vole numbers and biomass.

A new diterpenoid, taibairubescensin C, from Isodon rubescens

A new kaurenoid, taibairubescensin C (1), was isolated from the ethanol extract of the leaves and tender branches of Isodon rubescens (Hemsl.) Hara. Its structure was designated as 2beta,6alpha-diacetoxy-3beta, 11beta-dihydroxy-ent-kaur-16-en-15-one (1) on the basis of detailed spectroscopic analysis.

Progress in Vision and Robotics

The Vision Flashes are informal working papers intended primarily to stimulate internal interaction among participants in the A.I. Laboratory's Vision and Robotics group. Many of them report highly tentative conclusions or incomplete work. Others deal with highly detailed accounts of local equipment and programs that lack general interest. Still others are of great importance, but lack the polish and elaborate attention to proper referencing that characterizes the more formal literature. Nevertheless, the Vision Flashes collectively represent the only documentation of an important fraction of the work done in machine vision and robotics. The purpose of this report is to make the findings more readily available, but since they are not revised as presented here, readers should keep in mind the original purpose of the papers!

MUES (Mid Wales - Users - Ethnic Services) Ethnic services provision 2007-08. Report for Libraries for Life: Delivering the entitlement agenda for library users in Wales 2007-09

Thomas, R., Urquhart, C., Crossan, S. & Hines, B. (2008). MUES (Mid Wales - Users - Ethnic Services) Ethnic services provision 2007-08. Report for Libraries for Life: Delivering the entitlement agenda for library users in Wales 2007-09. Aberystwyth: Department of Information Studies, Aberystwyth University. Related policy guidance published separately Sponsorship: CyMAL

Obraz stosunków językowych polsko-niemieckich w historii języka polskiego. Księga sądu wójtowskiego m. Opola z lat 1698-1721 jako językowy wyraz kontaktów międzyetnicznych

Wydział Filologii Polskiej i Klasycznej: Instytut Filologii Polskiej

The development of learner autonomy through Internet resources and its impact on English language attainment

Wydział Neofilologii: Instytut Filologii Angielskiej

The Notion of Central Europe in Historiography

The aim of this paper is analyse the notion of Central Europe used in historiography. The author reconstructs different meanings of this term used in the works of George Schopflin, Peter Burke, Oskar Halecki, Piotr Wandycz. This notion has not only geographic but also social and historical meaning.

Electronic dictionary entries with animated pictures: Lookup preferences and word retention

http://ijl.oxfordjournals.org/cgi/reprint/ecp022?ijkey=FWAwWPvILuZDT1S&keytype=ref

Komparatystyka na rozdrożu?

The author of the article attempts to present the situation of comparative studies as a field of research and a way of thinking about the contemporary world on the basis of the analyses presented in Comparative Literature at a Crossroads? in the monographic issue of “Comparative Studies” 2006. Much attention is paid to the phenomenon of the crisis of comparative studies connected with a noticeable reluctance towards great theoretical models shared by many researchers, the extensiveness of the topic area and resulting methodological problems but also the fact that comparatists abandon the studies of other languages. This results in a need of searching for a satisfactory definition of this field of study, its scope of research and applicable research methods. Among the specific issues raised in the article there is, e.g. the case of world literature seen in the context of the classical contradiction between cultural hegemony and cultural pluralism. Moreover, an interesting review of the picture of the Polish culture from the perspective of postcolonial theories and intracultural differences is presented.

Badania wykorzystania przez polskie biblioteki naukowe środków europejskich, grantów ministerialnych i samorządowych oraz dotacji sponsorów w latach 2000-2008

Badania dotyczące pozyskiwania środków pomocowych przez polskie biblioteki naukowe przeprowadzone zostały w ramach wewnętrznych projektów badawczych Biblioteki Uniwersyteckiej w Poznaniu. Realizacji projektu podjął się Oddział Prac Naukowych, Wydawniczych i Dydaktycznych BU. Zadanie wykonano od września 2008 do czerwca 2009 roku. Zamierzeniem autorek artykułu było uzyskanie pełnej informacji na temat środków pozabudżetowych pozyskiwanych przez polskie biblioteki naukowe oraz określenie stopnia ich wykorzystania. Zastosowano metodę sondażu diagnostycznego z wykorzystaniem techniki ankiety. Przygotowany kwestionariusz ankiety wraz z informacją dla respondentów o celu prowadzonych badań skierowano do wszystkich bibliotek uniwersyteckich, bibliotek głównych uczelni technicznych, medycznych, ekonomicznych, bibliotek akademii wychowania fizycznego, uczelni pedagogicznych i rolniczych oraz do bibliotek publicznych posiadających status bibliotek naukowych. Łącznie wysłano 70 ankiet, odpowiedzi udzieliło 38 respondentów. Wskazany w artykule okres 2000-2008 był czasem zwiększonych możliwości uzyskiwania dodatkowych funduszy przez biblioteki. Najczęściej otrzymywane fundusze to dotacje ministerialne, dalej środki sponsorów na działalność podstawową. W poważnym stopniu wspierały biblioteki, głównie biblioteki publiczne, lokalne samorządy. Zauważalne były dotacje wspierające biblioteki przekazywane przez fundacje i środki ofiarowane przez sponsorów na działalność organizacyjną; ewenementem natomiast – subwencje unijne.

Prawda - istina w horyzoncie anthropos w myśli rosyjskiego renesansu religijno-filozoficznego

Wydział Nauk Społecznych: Instytut Filozofii

Frazeologizmy z nazwami zwierząt we współczesnym języku polskim

Wydział Filologii Polskiej i Klasycznej: Instytut Filologii Polskiej