Results 221 to 230 of about 1,915,391 (310)

Topographic and Climatic Determinants of Soil Organic Carbon Across Landscapes: A Meta‐Analysis

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT The soil is the greatest natural store of organic carbon, holding between 1500 to 1550 Pg C of organic carbon at the top 100 cm of the soil globally—roughly twice the carbon pool in the atmosphere. The spatial distribution of this stock is controlled by a complex chain of controls: topographic position regulates the hydrological redistribution,
Vishal Sharma   +8 more
wiley   +1 more source

Historical Southern Hemisphere biomass burning variability inferred from ice core carbon monoxide records. [PDF]

open access: yesProc Natl Acad Sci U S A
Strawson I   +11 more
europepmc   +1 more source

Historical data reveal earlier flowering under environmental change

open access: yesNordic Journal of Botany, EarlyView.
Global temperatures have risen ~ 1.1°C since the 1800s and the mean annual air temperature in the Arctic has increased by nearly four times the global average. Temperature has a significant effect on fundamental life‐cycle events of flora and fauna. With temperatures increasing, Arctic plants are expected to shift their active periods accordingly, with
Elizabeth Stunz   +2 more
wiley   +1 more source

Genome analysis and biogeographic distribution of the earliest divergent Frankia clade in the southern hemisphere. [PDF]

open access: yesFEMS Microbiol Ecol
Berckx F   +8 more
europepmc   +1 more source

End-of-season influenza vaccine effectiveness during the Southern Hemisphere 2022 influenza season - Chile, Paraguay, and Uruguay.

open access: yesInt J Infect Dis, 2023
Chard AN   +21 more
europepmc   +1 more source

Life history stability under climate change: a wildflower at the northern edge of its range

open access: yesNordic Journal of Botany, EarlyView.
Stabilities of life history traits for a widespread native perennial wildflower, Rudbeckia laciniata L., are described for five populations near the northern edge of its range in North America. Theory proposes that such populations experience variable levels of stress as suitable abiotic conditions shift north or south from year to year, which ...
Robert J. Lamb, Patricia A. MacKay
wiley   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

open access: yesNordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz   +3 more
wiley   +1 more source

Sex Differences in Congenital Aural Atresia: A Systematic Review and Meta‐Analysis

open access: yesOtolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To evaluate sex differences in the diagnosis and management of congenital aural atresia (CAA). Data Sources PubMed, SCOPUS, CINAHL, Cochrane Library. Review Methods A comprehensive literature search was conducted from inception through January 2026.
Angelica M. Walker   +4 more
wiley   +1 more source

Patterns and environmental drivers of root traits across hydrological gradients in old growth boreal forests

open access: yesOikos, EarlyView.
Many key ecosystem functions are affected by plant roots and their traits. However, understanding of the patterns in, and drivers of, root traits lags far behind equivalent knowledge of above‐ground tissues, particularly in boreal old growth forests. We surveyed community‐level root traits across 11 old growth forests spanning a wide latitudinal range ...
Naomi Vöhringer   +4 more
wiley   +1 more source

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