Results 71 to 80 of about 24,631 (230)

An integrated approach to balance freshwater connectivity restoration and invasion risk

open access: yesConservation Biology, EarlyView.
Abstract Habitat fragmentation negatively affects many native migratory fish populations. However, this fragmentation can also prevent the spread and establishment of invasive species. We modified the dendritic connectivity index (DCI), a commonly used freshwater connectivity metric, to account for multiple invasive dispersal pathways in estimates of ...
Alex Arkilanian   +3 more
wiley   +1 more source

Validation of the coupled physical–biogeochemical ocean model NEMO–SCOBI for the North Sea–Baltic Sea system [PDF]

open access: yesBiogeosciences
The North Sea and the Baltic Sea still experience eutrophication and deoxygenation despite large international efforts to mitigate such environmental problems.
I. Ruvalcaba Baroni   +18 more
doaj   +1 more source

Welsh Basin [PDF]

open access: yes, 2011
The Cambrian rocks of Wales mostly lie within the Avalon composite terrane, apart from a small area of Cambrian rocks of the Monian composite terrane that is discussed in Chapter 9.
Molyneux, S.G., Rushton, A.W.A.
core  

External Actors, Pressures and Influences: European Integration and the Outside World

open access: yesJCMS: Journal of Common Market Studies, EarlyView.
Abstract The European Union (EU) increasingly faces external pressures, ranging from Russia's war of aggression against Ukraine to an economically and politically assertive China to deep changes in the transatlantic relationship with the United States.
Christian Freudlsperger, Lucas Schramm
wiley   +1 more source

Is Viola uliginosa critically endangered in Poland? - New data on the distribution of the species

open access: yesActa Societatis Botanicorum Poloniae, 2011
Viola uliginosa Besser is a European species mainly known from the Baltic Region. It is endangered in a significant part of its range. Research carried out in the southeastern part of Poland led to the discovery of numerous sites of Viola uliginosa ...
Rafał Krawczyk   +3 more
doaj   +1 more source

Three Closely Related Spodoptera Species Similarly Affect Gene Expression and Phytohormone Levels but Differentially Induce Volatile Emissions in Maize

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plants can perceive specific elicitors in the oral secretions (OS) of herbivorous insects and respond by increasing their defences. Whether plants can discriminate among similar herbivorous insect species and differentially modulate their defence responses against them is largely unknown.
Wenfeng Ye   +4 more
wiley   +1 more source

What Moves Capital to Transition Economies? [PDF]

open access: yes
The transition economies in Europe and the former Soviet Union between 1991 and 1999 differed widely in terms of total capital flows and the share and composition of private flows. With some exceptions (notably Russia), the main source of private inflows
Jeromin Zettelmeyer   +3 more
core  

Reversal of economic integration: evidence from European Union enlargement

open access: yesThe Scandinavian Journal of Economics, EarlyView.
Abstract Empirical models of trade agreements implicitly assume that withdrawal from a trade agreement has an equal and opposite trade effect as accession (i.e., symmetry). With increasing opposition to international economic cooperation, it becomes urgent to test this assumption.
Hinnerk Gnutzmann   +2 more
wiley   +1 more source

Charm pendants found among the Roman-time antiquities of the south-eastern Baltic region

open access: yesВестник археологии, антропологии и этнографии, 2020
The article is aimed at tracing the origin of Roman pendants (referred to as ‘charms’ in Baltic archaeology), dating them and, if possible, determining their semantic meaning. The analysis of these artefacts, found among the antiquities from the mouth of
V.I. Kulakov
doaj   +1 more source

Regional Financial Interlinkages and Financial Contagion within Europe [PDF]

open access: yes
The ongoing global financial turmoil has increased the importance of understanding the potential spillover effects brought about by financial interlinkages.
Karl Driessen   +2 more
core  

Home - About - Disclaimer - Privacy