Search results for "indikaattorit"
showing 10 items of 36 documents
Cross-taxon congruence and relationships to stand characteristics of vascular plants, bryophytes, polyporous fungi and beetles in mature managed bore…
2018
Abstract Multi-taxon analyses of ecological assemblages are needed when the effects of forestry on biodiversity are examined. Management usually simplifies the structure of forests, which results in quantitative and qualitative declines in many microhabitats and species associated with them. In Fennoscandia, most forests are managed for industrial use of wood, but relatively little is known about the relationships between structural components and biodiversity in managed forests. Abundance, composition or species number of different species groups reacting similarly to variation in their environment would be a useful tool e.g. in estimating responses of species that are more difficult to sa…
Research priorities for freshwater mussel conservation assessment
2018
Freshwater mussels are declining globally, and effective conservation requires prioritizing research and actions to identify and mitigate threats impacting mussel species. Conservation priorities vary widely, ranging from preventing imminent extinction to maintaining abundant populations. Here, we develop a portfolio of priority research topics for freshwater mussel conservation assessment. To address these topics, we group research priorities into two categories: intrinsic or extrinsic factors. Intrinsic factors are indicators of organismal or population status, while extrinsic factors encompass environmental variables and threats. An understanding of intrinsic factors is useful in monitor…
Pietarsaaren seudun ilmanlaadun bioindikaattoritutkimus vuosina 2006-2007
2008
Bioindikatoruppföljning av luftkvaliteten i Jakobstadsnejden åren 2006-2007
2008
Seinäjoen seudun ilmanlaadun bioindikaattoritutkimus vuosina 2006-2007
2008
Bioindikatoruppföljning av luftkvaliteten i Sydösterbotten åren 2006-2007
2008
Vakka-Suomen alueen ilmanlaadun bioindikaattoritutkimus vuosina 2006-2007
2008
Toward a holistic understanding of pastoralism
2021
Pastoralism is globally significant in social, environmental, and economic terms. However, it experiences crises rooted in misconceptions and poor interdisciplinary understanding, while being largely overlooked in international sustainability forums and agendas. Here, we propose a transdisciplinary research approach to understand pastoralist transitions using (1) social, economic, and environmental dimensions, (2) diverse geographic contexts and scales to capture emerging properties, allowing for cross-system comparisons, and (3) timescales from the distant past to the present. We provide specific guidelines to develop indicators for this approach, within a social-ecological resilience anal…
Health asset profiles and health indicators among 13- and 15-year-old adolescents
2018
Objectives We examined the associations between adolescents’ health assets and various health indicators (smoking, alcohol use, sleep length, physical activity, healthy eating, oral health, self-reported health, multiple health complaints). Methods A nationally representative sample was drawn from Finnish-speaking schools, comprising 13- and 15-year-old adolescents (n = 3833). The measures taken covered the adolescents’ health assets, which were labelled Family-financial, Psychological, Family-social, Friends-social, School-social, and Human. Our analysis applied two-step cluster analysis and multilevel mixed-effects binary logistic regression. Results Six asset profiles were identified: ‘L…
Funktionaaliset a posteriori virhe-estimaatit Maxwellin yhtälöille
2010
Funktionaaliset a posteriori virhe-estimaatit ovat osoittautuneet luotettavaksi tavaksi arvioida osittaisdifferentiaaliyhtälöiden numeeristen ratkaisujen virhettä. Tässä tutkielmassa malliongelma on Maxwellin yhtälöistä johdettu toisen kertaluvun reuna-arvotehtävä. Tälle yhtälölle on johdettu jo aikaisemmin funktionaaliset a posteriori virhe-estimaatit, mutta niiden suorituskykyä ei ole vielä tutkittu kattavasti. Tutkielman alkuosa keskittyy malliongelman numeeriseen ratkaisemiseen: elementtimenetelmään, jossa käytetään Nédélecin elementtiä. Tutkielman jälkimmäisessä osassa johdetaan funktionaalinen ala- ja yläraja. Näiden estimaattien todetaan analyyttisesti olevan tarkkoja. Tämä ominaisuu…