Search results for "Ekologi"
showing 10 items of 383 documents
Käenpoikana koulun käytännöissä : sopeutumattoman oppilaan koulunkäyntikokemuksia
1998
Reilu siirtymä, ekologinen solidaarisuus ja kestävyysmurroksen mahdollisuus?
2021
Ekologisen kriisin ratkaisemiseksi tarvittavan kestävyysmurroksen yhteydessä on lisääntyvästi alettu keskustella oikeudenmukaisuudesta tai reiluudesta. Reilu siirtymä tarkoittaa sosiaalisen oikeudenmukaisuuden nostamista keskeiseksi osaksi ympäristökriisin ratkaisua, mikä on tärkeää sekä siirtymän hyväksyttävyyden että toimivan toteutuksen kannalta. Samalla oikeudenmukaisuuden korostaminen pitää kuitenkin sisällään riskin ympäristökriisin ratkaisemisen hidastumisesta. Erityisesti näin voi käydä, mikäli oikeudenmukaisuus kääntyy tarkoittamaan oikeutta kestämättömien elämäntapojen ja yhteiskuntarakenteiden ylläpitämiseen. Tarkastelemme tässä katsauksessa reilua siirtymää kriittisesti ja nosta…
Frequency-dependent selection and environmental heterogeneity as selective mechanisms in wild populations
2010
Droplet digital PCR as a tool for investigating dynamics of cryptic symbionts
2021
Abstract Interactions among symbiotic organisms and their hosts are major drivers of ecological and evolutionary processes. Monitoring the infection patterns among natural populations and identifying factors affecting these interactions are critical for understanding symbiont–host relationships. However, many of these interactions remain understudied since the knowledge about the symbiont species is lacking, which hinders the development of appropriate tools. In this study, we developed a digital droplet PCR (ddPCR) assay based on apicomplexan COX1 gene to detect an undescribed agamococcidian symbiont. We show that the method gives precise and reproducible results and enables detecting cryp…
Dangerous relationships : biases in freshwater bioassessment based on observed to expected ratios
2018
Copyright by the Ecological Society of America The ecological assessment of freshwaters is currently primarily based on biological communities and the reference condition approach (RCA). In the RCA, the communities in streams and lakes disturbed by humans are compared with communities in reference conditions with no or minimal anthropogenic influence. The currently favored rationale is using selected community metrics for which the expected values (E) for each site are typically estimated from environmental variables using a predictive model based on the reference data. The proportional differences between the observed values (O) and E are then derived, and the decision rules for status ass…
The role of agroecosystems for invasion of a generalist herbivore
2014
Population structure, life cycle, and trophic niche of the glacial relict amphipod, Gammaracanthus lacustris, in a large boreal lake
2019
Ecology of the glacial relict macrocrustacean Gammaracanthus lacustris, a rare inhabitant of deep Fennoscandian lakes, is poorly understood. We studied the life cycle and trophic position of this cold‐stenothermic amphipod in Lake Paasivesi, eastern Finland. The study is based on intensive sampling and analyses of fatty acid composition as well as stable carbon (δ13C) and nitrogen (δ15N) isotope ratios. Both day and night, the G. lacustris population occurred at depths below 25 m at temperatures 40 mm and live up to 4 years. The oldest and the largest individuals and females seemed to favour the deepest zones. In October, almost 100% of females with length at least 25 mm (i.e. females presu…
Comparison of muscle and hair stable isotope ratios in three phocid seals
2020
Äärianarkistiset militanttiryhmät kapinoivat Tampereella : kuusi päivää Mustavihreitä päiviä suomalaisessa valtalehdistössä tammi-helmikuussa 1998
2001
Up with ecology, down with economy? : The consolidation of the idea of climate change mitigation in the global public sphere
2018
Building on theories of valuation and evaluation, we develop an analytical framework that outlines six elements of the process of consolidation of an idea in the public sphere. We then use the framework to analyse the process of consolidation of the idea of climate change mitigation between 1997 and 2013, focusing on the interplay between ecological and economic evaluations. Our content analysis of 1274 articles in leading newspapers in five countries around the globe shows that (1) ecological arguments increase over time, (2) economic arguments decrease over time, (3) the visibility of environmental nongovernmental organizations as carriers of ecological ideas increases over time, (4) the …