Search results for "Bank"
showing 10 items of 1070 documents
Social overwintering and food distribution in the bank vole Clethrionomys glareolus
1991
We studied overwintering in the bank vole Clethrionomys glareolus in four 0.5 ha enclosures in an abandoned field in central Finland in the winter 1987/88. In two of the enclosures food was offered evenly distributed over the whole enclosed area (Even Enclosures = EE), in the two others food was offered in one feeding patch with four feeding chambers 2 m apart (Patchy Enclosures = PE). Food was provided in about the same amount in both enclosures. The experiment commenced in early October, with 13 females and 11 males in EEs and 12 + 13 voles in PEs. After two months the voles in the PEs were concentrated around the feeding patches. Territoriality was not observed in EEs, instead the voles …
Breeding suppression in the bank vole as antipredatory adaptation in a predictable environment
1994
In northern Fennoscandia, microtine rodent populations fluctuate cyclically. The environment of an individual vole can be considered to be predictable when the risks of predation and intra- and interspecific competition change with the cycle, such that both are high during the population highs of voles. The risk of predation is also high during the vole crash. After the crash, the vole population is characterized by low intra- and interspecific competition and low predation pressure. The main predators affecting voles during the crash are the small mustelids, least weasel and stoat. The density of these specialist predators declines drastically during the winter after the vole crash. We stu…
Infanticide and Population Growth in the Bank Vole (Myodes glareolus): The Effect of Male Turnover and Density
2011
One major intrinsic factor affecting recruitment of young into a population is infanticide, the killing of conspecific young by adult males. It occurs in most mammal species, like our study species the bank vole (Myodes glareolus), and is widely accepted as an adaptive behavior, which may increase male fitness via nutritional gain, decreased competition, or an increased access to mates. A turnover of males in a population increases the risk of infanticide owing to a disruption of social structures. In a controlled field study, we tested the effects of total male turnover and density on juvenile recruitment and female space use in experimental bank vole populations. Juvenile recruitment decl…
Life in varying environments: experimental evidence for delayed effects of juvenile environment on adult life history
2011
Summary 1. The effects of environment experienced during early development on phenotype as an adult has started to gain vast amounts of interest in various taxa. Some evidence on long-term effects of juvenile environment is available, but replicated experimental studies in wild animals are still lacking. 2. Here we report the first replicated experiment in wild mammals which examines the long-term effects of juvenile and adult environments on individual fitness (reproduction, survival and health). The early development of bank vole (Myodes glareolus) individuals took place in either foodsupplemented or un-supplemented outdoor enclosures. After the summer, adult individuals were reciprocally…
Different demography of friends and strangers: an experiment on the impact of kinship and familiarity in Clethrionomys glareolus.
1989
We examined demographic effects of familiarity and relatedness in the bank vole Clethrionomys glareolus (Schreber) in four 0.5-ha enclosures in Central Finland. In two enclosures were mature voles which had overwintered together and some of their mature off-spring (hereafter referred to as “Friends”), and in the other two individuals of the same species captured from different localities near the study area (“Strangers”). The experiment lasted from June to September. The populations of Friends reached densities twice as high as those of Strangers with a significantly higher rate of recruitment and survival of the young. This may have been due to mutual familiarity decreasing antagonism towa…
Naudas zīmju viltojumu atpazīšana specifiskā lāzeru apgaismojumā
2018
Bakalaura darba mērķis ir noskaidrot, vai naudas zīmju apstarošanas metode specifiskā – trihromātiskā – lāzeru apgaismojumā var tikt pielietota eiro valūtas viltojumu atpazīšanai. Izmantojot speciālu ar viedtālruni aprīkotu iekārtu, oriģinālās un viltotās eiro naudas zīmes tika apgaismotas vienlaicīgi ar trīs viļņu garumu lāzeriem (473nm, 532nm un 659nm), un ar viedtālrunī iebūvēto RGB kameru tika uzņemti attēli. Izmantojot RGB pārklāšanās korekcijas algoritmu, iegūtie attēli Matlab vidē tika sadalīti trijos līdz kameras sensoram nonākušās gaismas intensitāti raksturojošos attēlos – pie katra no lāzeriem viens attēls. Šo attēlu masīvu vērtības tika izmantotas parametrisku attēlu iegūšanai. …
Eiropas Centrālās bankas monetārās politikas analīze eirozonas valstīs Teilora likuma kontekstā
2018
Kopš 2008. gada finanšu krīzes beigām Eiropas Centrālajai bankai nācies pārskatīt monetārās politikas piemērotību pēckrīzes situācijai, kad eirozonā novērojama ilgstoša stagnācija ar zemiem inflācijas un ekonomiskās izaugsmes rādītājiem. Turklāt, eirozonai strauji paplašinoties tieši pēc 2008. gada, Eiropas Centrālās bankas uzdevums ir īstenot tādu monetāro politiku, kas būtu vienlīdz piemērota atšķirīgajām eirozonas dalībvalstīm. Darba mērķis ir analizēt Eiropas Centrālās bankas īstenotās monetārās politikas piemērotību 19 esošajām eirozonas dalībvalstīm, pielietojot Teilora likumu, un papildus noteikt eirozonas atbilstību optimālās valūtas zonas kritērijiem, starp kuriem ir arī inflācijas…
Zibmaksājumu attīstību noteicošie faktori un to ietekme uz iedzīvotāju paradumiem Eiropā
2019
Bakalaura darba tēma ir “Zibmaksājumu attīstību noteicošie faktori un to ietekme uz iedzīvotāju paradumiem Eiropā”. Zibmaksājumi ir maksājumu sistēmas jaunievedums, kas palīdz uzlabot maksājumu kvalitāti un ļauj klientiem nosūtīt un saņemt naudu vien dažās sekundēs, paātrinot šo procesu un uzlabojot naudas kustību. Darba mērķis ir izpētīt zibmaksājumu attīstības noteicošus faktorus un to ietekmi uz iedzīvotāju paradumiem Eiropā, lai izvērtētu zibmaksājumu nepieciešamību un to nākotnes attīstību. Darbā iegūtie galvenie rezultāti ir, ka tūlītējie maksājumi ir nepieciešami aktīvākajiem banku klientiem, un kā liecina aptauju rezultāti – to skaits ir pietiekami liels. Darbs ir noderīgs zibmaksāj…
Banknæringens digitale hamskifte : en kvalitativ studie om DNBs digitalisering i møtet med eldre kunder
2016
Masteroppgave samfunnskommunikasjon- Universitetet i Agder, 2016 The purpose of this thesis is to better understand the digitization of the banking sector in Norway and how it affects the relationship between the bank and older customers. One of the reasons being that there are few examples of Norwegian research on the elderly and their use of Information and Communications-Technology (ICT). The theoretical approach is interdisciplinary, combining theory from fields such as information systems theory (Technology Acceptance Model), conceptual design theory (Service design) and sociological theory (Socialgerontology). Using a qualitative research method I interviewed four elderly customers of…
Fungal-Mediated Multitrophic Interactions - Do Grass Endophytes in Diet Protect Voles from Predators?
2010
Plant-associated micro-organisms such as mycotoxin-producing endophytes commonly have direct negative effects on herbivores. These effects may be carried over to natural enemies of the herbivores, but this has been rarely explored. We examined how feeding on Neotyphodium endophyte infected (E+) and endophyte free (E−) meadow ryegrass (Scherodonus pratensis) affects body mass, population size and mobility of sibling voles (Microtus levis), and whether the diet mediates the vulnerability of voles to least weasel (Mustela nivalis nivalis) predation. Because least weasels are known to be olfactory hunters, we also examined whether they are able to distinguish olfactory cues of voles fed on E+ a…