Juliana Dänhardt

ORCID: 0000-0003-2383-2339
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About
Contact & Profiles
Research Areas
  • Ecology and Vegetation Dynamics Studies
  • Avian ecology and behavior
  • Land Use and Ecosystem Services
  • Plant and animal studies
  • Animal Behavior and Reproduction
  • Environmental Conservation and Management
  • Forest Management and Policy
  • Plant Parasitism and Resistance
  • Conservation, Biodiversity, and Resource Management
  • Botany and Plant Ecology Studies
  • Economic and Environmental Valuation
  • Land Rights and Reforms
  • Wildlife Ecology and Conservation
  • Social and Educational Sciences
  • Agriculture and Rural Development Research
  • Forest Ecology and Biodiversity Studies
  • Rural development and sustainability
  • Urban Green Space and Health
  • Peatlands and Wetlands Ecology
  • Agricultural Innovations and Practices
  • Lichen and fungal ecology
  • Ecology and biodiversity studies
  • Regulation and Compliance Studies
  • Marine animal studies overview
  • Bioenergy crop production and management

Lund University
2010-2024

Bolin Centre for Climate Research
2018

Institute for Biodiversity
2010

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

10.1111/ele.13265 article EN Ecology Letters 2019-04-07

Abstract Co‐flowering plant species commonly share flower visitors, and thus have the potential to influence each other's pollination. In this study we analysed 750 quantitative plant–pollinator networks from 28 studies representing diverse biomes worldwide. We show that for one another indirectly via shared pollinators was greater plants whose resources were more abundant (higher floral unit number nectar sugar content) accessible. The indirect also stronger between phylogenetically closer...

10.1111/ele.12342 article EN cc-by Ecology Letters 2014-08-28

Abstract The European Union's Common Agricultural Policy (CAP) has not halted farmland biodiversity loss. CAP post‐2023 a new ‘‘Green Architecture,’’ including the ‘‘Eco‐scheme’’ instrument. How can this Green Architecture help tackle crisis? Through 13 workshops and an online survey, over 300 experts from 23 Member States addressed question. From experts’ contributions, key principles for success include preserving restoring (semi)natural elements extensive grasslands; improving spatial...

10.1111/conl.12901 article EN cc-by Conservation Letters 2022-06-30

The assessment of effects anthropogenic disturbance on biodiversity (BD) and ecosystem services (ES) their relationships are key priorities the Intergovernmental Panel for Biodiversity Ecosystem Services. Agricultural landscapes associated BD provide multiple ES it is crucial to understand how between components change along gradients landscape complexity. In this study, we related eight potentials species richness five invertebrate, vertebrate plant taxonomic groups in cereal farming...

10.1016/j.biocon.2017.12.027 article EN cc-by-nc-nd Biological Conservation 2018-01-03

The global demand for food is expected to continue increasing decades, which may drive both agricultural expansion and intensification. associated environmental impacts are potentially considerable but will depend on how the sector develops. Currently, there contrasting regional developments in agriculture; and/or intensification some regions abandonment others, as well changes type of farming. However, consequences farm not understood. We have evaluated production three key...

10.1016/j.agsy.2021.103071 article EN cc-by Agricultural Systems 2021-01-31

Agricultural intensification in Europe has affected farmland bird populations negatively, both during summer and winter. Although the migratory period poses separate challenges on birds than breeding wintering, consequences of farming practices for migration remain poorly investigated. We monitored abundance species richness autumn at matched pairs organic conventional farms situated either intensively farmed open plains (homogeneous landscapes) or small-scale landscapes (heterogeneous...

10.1111/j.1600-0706.2009.18106.x article EN Oikos 2010-01-15

Improving our understanding of the relationships between biodiversity and delivery ecosystem services is crucial for development sustainable agriculture. We introduce a novel framework that based on identification indicator species single or multiple across taxonomic groups analyses. utilize multi-species community data (unlike previous approaches) without giving up information about identity in richness approaches). compiled comprehensive dataset including abundances 683 invertebrate,...

10.1016/j.ecolind.2018.04.018 article EN cc-by-nc-nd Ecological Indicators 2018-04-12

As a part of the greening EU's Common Agricultural Policy in 2013, Ecological Focus Areas (EFA) became mandatory for many European farmers, with aim to enhance on-farm biodiversity. However, their effects on biodiversity have been disputed. In this interdisciplinary effort, we assessed current and alternative formulations EFA regulations Sweden. By complementing economic ecological modelling interviews persons at administrative advisory bodies narrative decision game were able demonstrate...

10.1016/j.landusepol.2019.04.005 article EN cc-by-nc-nd Land Use Policy 2019-04-22

Today's intensive farming practices are known to have affected farmland biodiversity negatively in many different ways. As far as birds concerned, they suffered during both summer and winter. Relatively little is about the effects on migration. We studied stopover ecology of Eurasian golden plover Pluvialis apricaria , a species listed EU Birds Directive, intensively farmed arable land southernmost Sweden autumns 2003–2007. used key ecological variables (length stay, fat deposition moult)...

10.1111/j.1600-048x.2009.04810.x article EN Journal of Avian Biology 2010-03-01

Leapfrog migration is a common pattern in birds where the breeding and wintering latitudes between populations are reversed latitudinal sequence. Competition for sites has been suggested to be an ultimate factor, several competitor-based hypotheses have proposed explain this pattern. If close favored, competitive exclusion could force subdominant individuals winter further away. Competitive mediated either through body size or by prior occupancy. The alternative "spring predictability"...

10.1002/ecy.4379 article EN cc-by Ecology 2024-07-26

Exploring the patterns of genetic structure in context geographical and phenotypic variation is important to understand evolutionary processes involved speciation. We investigated population subspecies differentiation Common Ringed Plover Charadrius hiaticula, a high latitude wader that breeds arctic temperate zones from northeast Canada across Eurasia Russian Far East. Three subspecies, tundrae psammodromus, are currently widely recognised, whereas fourth kolymensis, has been proposed based...

10.5253/arde.v106i2.a8 article EN Ardea 2018-10-01

Abstract A common migratory pattern in birds is that northerly breeding populations migrate to more southerly non-breeding sites compared ( leap-frog migration ). Not only do experience differences distances, but also different environmental conditions, which may vary spatiotemporally within their annual cycles, creating distinctive selective pressures and strategies. Information about such adaptations important understand drivers evolution of patterns. We use light-level geolocators citizen...

10.1007/s00265-021-03116-y article EN cc-by Behavioral Ecology and Sociobiology 2021-12-28
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