Search results for "maisemaekologia"

The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agroecosystem services across Europe

2019

Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configuration (edge density) on arthropods in fields and their margins, pest control, pollination and yields. Configuration effects interacted with the proportions of crop and non-crop habitats, and species’ dietary, dispersal and overwintering traits led to contrasting responses to landscape variables. O…

Management diversity begets biodiversity in production forest landscapes

2022

How to manage forest for biodiversity conservation is an ongoing debate. We argue that maximizing biodiversity in managed forest landscapes requires a diversity of forest management regimes in space and time. This will generate high levels of habitat heterogeneity at a landscape scale, which in turn will support various groups of forest species. Based on concepts from landscape ecology, we formulate five hypotheses on how management diversity, i.e. combining various management approaches can benefit overall biodiversity across a production forest landscape. First, management diversity will increase habitat diversity and, therefore, beta diversity (the habitat diversity hypothesis). Second, …

Global warming, forest biodiversity and conservation strategies in boreal landscapes

2014

Maankäytön vaikutus kuminapeltojen kukkakärpäsiin (Syrphidae) ja muihin pölyttäjiin

2017

Maankäyttö on yksi voimakkaimmista luonnon monimuotoisuutta vähentävistä tekijöistä. Tehomaatalouden ja sen aiheuttaman maiseman yksinkertaistumisen vuoksi pölyttäjät ovat ajautuneet maailmanlaajuiseen kriisiin. Maisemaekologiassa tutkitaan, kuinka maisemarakenteen vaihtelevuus vaikuttaa eliöyhteisöjen monimuotoisuuteen. Maisemarakenteen vaihtelevuus -hypoteesin mukaan maiseman rakenteellisen vaihtelevuuden lisääntyessä erilaisia olosuhteita ja resursseja on enemmän lajien saatavilla, jolloin lajistollinen monimuotoisuus kasvaa. Useissa tutkimuksissa on havaittu, että maisemarakenteen vaihtelevuudella on yleensä myönteinen vaikutus eliöyhteisöjen monimuotoisuuteen. Maisemarakennetta voidaan…

Data and code for manuscript: Increasing human environmental footprint does not lead to biotic homogenization of forest bird communities in northern …

2023

R-code and data for replicating statistical analyses used in the study: Increasing human environmental footprint does not lead to biotic homogenization of forest bird communities in northern USA. This study examined how forest loss and increased human domination in the state of Minnesota in the USA were associated with diversity of forest birds using bird count data.

A landscape approach to planetary well-being

2024

“Landscape” refers to a perceivable spatial level shaped by socio-ecological interactions and represents the systems where people live. Human societies have globally transformed landscapes to meet their needs, e.g., nutrition or shelter, according to cultural preferences. This human domination of land has resulted in considerable competition for space with other lifeforms, driving biodiversity loss through land-use change and intensification, as well as coming into conflict with planetary well-being. Recent research has highlighted the relevance of the landscape level when articulating human activities with and in their environment and maintaining human and nonhuman cohabitation. Indeed, th…

Are habitat loss, predation risk and climate related to the drastic decline in a Siberian flying squirrel population? A 15 year study

2014

To devise effective conservation actions, it is important to know which factors are associated with the population parameters of a declining population. Using mark–recapture methods, we estimated the annual population size, growth rate and survival probability of an ear-tagged flying squirrel population over a 15-year period in a 4,500 ha study area in western Finland. The species is considered vulnerable, but detailed knowledge concerning population sizes or trends is lacking. The population parameters and changes therein were regressed against habitat availability, an indicator of predation pressure, and mean winter temperature (an indicator of climate change), to reveal potential reasons…

Management diversification increases habitat availability for multiple biodiversity indicator species in production forests

2022

Context Forest biodiversity is closely linked to habitat heterogeneity, while forestry actions often cause habitat homogenization. Alternative approaches to even-aged management were developed to restore habitat heterogeneity at the stand level, but how their application could promote habitat diversity at landscape scale remains uncertain. Objectives We tested the potential benefit of diversifying management regimes to increase landscape-level heterogeneity. We hypothesize that different styles of forest management would create a diverse mosaic of forest habitats that would in turn benefit species with various habitat requirements. Methods Forest stands were simulated under business-as-usua…