Stable isotope analyses are increasingly employed to characterise population niche widths. The convex hull area (TA) in a δ13C–δ15N biplot has been used as measure of isotopic width, but concerns exist over its dependence on sample size and associated difficulties among-population comparisons. Recently more robust method was proposed for estimating comparing widths using standard ellipse areas (SEA), this approach yet be tested with empirical stable data. two methods different kind areas,...

Are adolescents' environmental attitudes similar to their parents' attitudes? The main objective of this study is examine what quantitative associations, if any, exist in parent-child within the family. survey data was collected assessing toward environment and nature from 15-year-old students (n = 237) parents 212) Finland. A significant positive correlation emerged between mothers fathers. Interestingly, results revealed some indicative evidence that girls' could relate more father's than...

In lake ecosystems a major proportion of methane (CH4) emissions originate from the littoral zone, which can have great spatial variability in hydrology, soil quality and vegetation. Hitherto, heterogeneity effects it has on functioning diversity methanotrophs wetlands been poorly understood. A diagnostic microarray based particulate monooxygenase gene coupled with geostatistics was used to analyse patterns wetland eutrophic boreal (Lake Kevätön, Eastern Finland). The had hydrology gradient...

Segmentation goodness evaluation is a set of approaches meant for deciding which segmentation good. In this study, we tested different supervised measures and visual interpretation in the case boreal forest habitat mapping Southern Finland. The data used were WorldView-2 satellite imagery, lidar digital elevation model (DEM), canopy height (CHM) 2 m resolution. methods fractal net evolution approach (FNEA) IDRISI watershed segmentation. Overall, 252 methods, layers, parameter combinations...

Abstract Conventional tags applied to individuals have been used investigate animal movement, but these methods require tagged be recaptured. Maps of regional isotopic variability known as “isoscapes” offer potential for various applications in migration research without tagging wherein isotope values tissues are compared environmental values. In this study, we present the spatial oxygen ( ) and dissolved inorganic carbon (δ 13 C DIC Baltic Sea water. We also provide an example how isoscapes...

Six batch leach bed (LB) reactors, installed in parallel and connected to a common upflow anaerobic sludge blanket reactor, were fed with grass silage operated at 35 (±1) °C. The development distribution of microorganisms, which firmly loosely attached solid materials, presented the leachate LB investigated by 16S rRNA gene-based terminal restriction fragment length polymorphism clone library analyses. phylotypes their relative abundance changed respective bacterial community throughout...

Solar radiation mineralizes dissolved organic matter (DOM) to inorganic carbon through photochemical reactions (DIC photoproduction) that are influenced by iron (Fe) and pH. This study addressed as what extent Fe contributes the optical properties of chromophoric DOM (CDOM) DIC photoproduction at different pH values. We created associations (Fe-DOM) cover range loadings on values found in freshwaters. The introduced enhanced light absorption CDOM independent Simulated solar irradiation...

Summary Environmental conventions aim to protect ecosystem structures and functions provide goods services for mankind. The degree of aquatic naturalness, or ecological status as it is defined in the Water Framework Directive ( WFD ) European Union, notionally linked supplies services. In practice, these links have rarely been documented even investigated, justify conservation management objectives based on indicators, essential demonstrate their relationships requires member states classify...

Solar photovoltaic (PV) energy has grown significantly over the past few years. However, despite increase in installed capacity, this source still raises important concerns related to variability of power production. The short-term effects such as cloud shadowing and supply interruptions, well long-term dust accumulation, seasonal variation, ageing PV modules, can cause Therefore, analysis all sources order provide statistically consistent production data is an challenge. This study presents...

Mountain landscape, described as a global biodiversity hotspot due to high endemism, is threatened by land-use change, including management and modification of vegetation. However, there little knowledge about how road land use affect plant diversity in mountains landscapes, particularly southern Africa. Previous studies have studied the impact or on species separately concentrated single species. Here we compare regenerated trees, shrubs, herbaceous plant, grasses among Forest, Fallow,...

Intensive management of boreal forests impairs forest biodiversity and species old-growth forest. Effective measures to support require detection locations valuable for conservation. We applied distribution models (SDMs) a mature forest, the northern goshawk (Accipiter gentilis, goshawk), that is often associated with hotspots biodiversity. located optimal sites on landscape scale, assessed their state under intensified logging operations identified characteristics goshawks' nesting in...

Abstract Stump removal procedure increases the extent of exposed mineral soil in clear felled areas. In this study, our aim was to find out whether early growth and mycorrhization Norway spruce (Picea abies (L.) Karst.) seedlings differ between stump mounding sites. Stumps were harvested from five one-hectare study sites other mounded after felling. Twenty planted on mounds at each site. Although height did not treatments three growing periods, their mean ca. 10% higher The community...

Clastic-biogenic varves are widely used for reconstructing past climate: in boreal environments, the accumulation of minerogenic clasts on lake floor is generally considered a proxy variations spring floods reflecting previous winter conditions. However, physical mechanisms behind this climate sensitivity and influence catchment type varve formation not fully investigated. Here, we present record inferred from clastic laminae three lakes located region fine-grained tills Eastern Finland...