Results 81 to 90 of about 379,262 (299)

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

Carbon and nitrogen accumulation in forest floor and surface soil under different geographic origins of Maritime pine (Pinus pinaster Aiton.) plantations

open access: yesForest Systems, 2013
Aim of study : To determine if plantations consisting of different geographic origins of the Maritime pine (Pinus pinaster Aiton.) could have altered C and N stocks in the forest floor and surface soils.Area of study : Forest floor and mineral soil C and
E. Ozdemir   +4 more
doaj   +1 more source

Heterogeneous microbial community associated with Bursaphelenchus xylophilus [PDF]

open access: yes, 2012
Pine wilt disease (PWD) is a complex disease integrating three major factors: the causal agent, the pinewood nematode Bursaphelenchus xylophilus; the insect-vector Monochamus spp.; and the host pine tree, Pinus sp.
Barbosa, Pedro   +6 more
core  

Life‐history correlations with seasonal cold hardiness in maritime pine [PDF]

open access: yesAmerican Journal of Botany, 2016
PREMISE OF THE STUDY:Plants have developed mechanisms to withstand stressful environmental conditions, but the high energetic cost of these mechanisms may involve exchanges with other key functions. While trade‐offs between cold hardiness and growth rates are a general assumption, we lack information regarding genetically based trade‐offs between cold ...
Prada, E.   +3 more
openaire   +4 more sources

Operating Capacity, Pricing and Supply Elasticity in Container Shipping Markets

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT We investigate the channels through which changes in operating capacity influence freight rates in the container shipping market using a novel dataset to create an operating capacity index at the shipping‐route level. Our analysis reveals that when supply elasticity is low, an increase in operating capacity tends to drive freight rates upward,
Cong Sui   +3 more
wiley   +1 more source

Linkage and Association Mapping for Two Major Traits Used in the Maritime Pine Breeding Program: Height Growth and Stem Straightness. [PDF]

open access: yesPLoS ONE, 2016
Increasing our understanding of the genetic architecture of complex traits, through analyses of genotype-phenotype associations and of the genes/polymorphisms accounting for trait variation, is crucial, to improve the integration of molecular markers ...
Jérôme Bartholomé   +8 more
doaj   +1 more source

Mutagenicity assessment of aerosols in emissions from wood combustion [PDF]

open access: yes, 2011
Mestrado em Estudos AmbientaisPolycyclic aromatic hydrocarbon (PAH) extracts of PM2.5 collected from combustion of seven wood species and briquettes were tested for mutagenic activities using Ames test with Salmonella typhimurium TA98 and TA100.
Binh Ngan Vu
core   +1 more source

An improved method for high-quality RNA isolation from needles of adult maritime pine trees [PDF]

open access: yes, 2003
Conventional RNA isolation methods optimised for pine seedlings have been shown to produce poor quality RNA when applied to needles of adult pine trees.
Azevedo, Herlânder   +2 more
core   +1 more source

Holocene palaeoenvironmental reconstruction of sea level, coastal and vegetation changes along the southern Solway Firth, United Kingdom

open access: yesJournal of Quaternary Science, EarlyView.
Abstract Holocene relative sea level (RSL) changes were reconstructed from four sites along the less‐studied southern Solway Firth. A multiproxy approach, including lithostratigraphical and biostratigraphical analyses, combined with radiocarbon dating, produced ten sea level index points (SLIPs).
Dayang Siti Maryam Binti Mohd Hanan   +3 more
wiley   +1 more source

Climatic niche and neutral genetic diversity of the six Iberian pine species: a retrospective and prospective view [PDF]

open access: yes, 2010
Quaternary climatic fluctuations have left contrasting historical footprints on the neutral genetic diversity patterns of existing populations of different tree species.
Soto de Viana, Álvaro
core   +2 more sources

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