Results 51 to 60 of about 649,805 (296)

COMBINED USE OF OPEN-AIR AND INDOOR FUMIGATION SYSTEMS TO STUDY EFFECTS OF SO-2 ON LEACHING PROCESSES IN SCOTS PINE LITTER [PDF]

open access: yes, 1991
Both an open-air fumigation system and a laboratory-based system were used to expose decomposing Scots pine (Pinus sylvestris L.) needles to controlled concentrations of SO2 (arithmetric mean less-than-or-equal-to 48 nl litre-1) during a period, in total,
Ineson, Phil   +3 more
core   +1 more source

Evolutionary, Functional and Mechanistic Characterisation of Microbial Terpene Synthase‐Like Genes From Springtails

open access: yesAngewandte Chemie International Edition, EarlyView.
A genome analysis revealed the presence of many bacterial‐type terpene synthases in springtails. Four enzymes from Sinella curviseta were functionally characterised, resulting in the isolation of several compounds including sinellene ether, the first diterpene ether identified from a terpene synthase that represents a novel skeleton.
Min Wang   +5 more
wiley   +1 more source

Stage-dependent associations between leaf litter chemistry and decomposition under nitrogen deposition and reduced precipitation in a subtropical forest

open access: yesFrontiers in Forests and Global Change
Litter decomposition regulates carbon sequestration and nutrient cycling in forest ecosystems and is sensitive to nitrogen deposition and drought. As decomposition proceeds, litter chemistry changes and the decomposition rate decrease, likely with a ...
Shixing Zhou   +12 more
doaj   +1 more source

What drives animal responses to high severity fire? The role of functional traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT Fire regimes are changing worldwide, with increases in the frequency, extent, and severity of fires posing growing risks to biodiversity. Fire severity – the degree of habitat alteration following fire – strongly influences both immediate survival and long‐term recovery of fauna.
Grace A. Vielleux   +3 more
wiley   +1 more source

Decomposition disentangled: a test of the multiple mechanisms by which nitrogen enrichment alters litter decomposition [PDF]

open access: yes, 2019
Nitrogen (N) enrichment has direct effects on ecosystem functioning by altering soil abiotic conditions and indirect effects by reducing plant diversity and shifting plant functional composition from dominance by slow to fast growing species.
Klaus, Valentin H.   +14 more
core   +3 more sources

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Global patterns and influencing factors of Mn accumulation in litter at different decomposition stages—A synthesis

open access: yesGeoderma
Manganese (Mn) is an essential cofactor for lignin-degrading enzymes and crucial for nutrient cycling and ecosystem functions. During litter decomposition, Mn may accumulate to fulfill the microbial demand for degrading recalcitrant substances such as ...
Yaoyi Zhang   +6 more
doaj   +1 more source

Climatic controls on leaf litter decomposition across European forests and grasslands revealed by reciprocal litter transplantation experiments [PDF]

open access: yesBiogeosciences, 2016
Carbon (C) and nitrogen (N) cycling under future climate change is associated with large uncertainties in litter decomposition and the turnover of soil C and N.
M. Portillo-Estrada   +10 more
doaj   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Temperature sensitivity of soil carbon decomposition [PDF]

open access: yes, 2013
The world's soils contain three times as much carbon as the atmosphere. Thus, any changes in this carbon pool may affect atmospheric CO₂ levels with implications for climate change.
Erhagen, Björn
core   +1 more source

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