Results 141 to 150 of about 1,259,973 (398)

Drivers and food web effects of Gonyostomum semen blooms [PDF]

open access: yes, 2013
The flagellate Gonyostomum semen forms dense late-summer blooms in humic lakes and is a nuisance to swimmers because it forms a slimy coat on the skin, causing irritation in sensitive individuals. Increasing occurrence and bloom incidence of G. semen has
Johansson, Karin S. L.
core  

Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning [PDF]

open access: yes, 2012
Hypoxia represents one of the major causes of biodiversity and ecosystem functioning loss for coastal waters. Since eutrophication-induced hypoxic events are becoming increasingly frequent and intense, understanding the response of ecosystems to hypoxia ...
A Norkko   +80 more
core   +5 more sources

Nitrogen additions and microbial biomass: a meta-analysis of ecosystem studies.

open access: yesEcology Letters, 2008
Nitrogen (N) enrichment is an element of global change that could influence the growth and abundance of many organisms. In this meta-analysis, I synthesized responses of microbial biomass to N additions in 82 published field studies.
K. Treseder
semanticscholar   +1 more source

Stomatal distribution and post‐fire recovery: Intra‐ and interspecific variation in plants of the pyrogenic Florida scrub

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Amphistomy, the presence of stomata on both leaf surfaces, can increase photosynthesis yet is uncommon across vascular plants. The relative infrequency of amphistomy is often attributed to high costs, such as transpirational water loss.
Genevieve Triplett, Aaron S. David
wiley   +1 more source

Deciphering fire tolerance of trees at the Amazonia–Cerrado transition by trait‐based approach: Implications from species to communities

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Understanding how fire impacts trees is essential for predicting the effects of novel fire regimes on plant diversity in the transition between the world's two most diverse biomes, the Cerrado and the Amazonia. Here we addressed knowledge gaps regarding physiological damage and mortality in transitional species within fire‐prone ...
Wesley Jonatar A. Cruz   +6 more
wiley   +1 more source

Toward a macroevolutionary understanding of live‐leaf flammability in plant species of fire‐prone forests

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The flammability of live leaves in canopies varies considerably among plant species. Identifying macroevolutionary processes that shape variation in leaf flammability contributes to an understanding of the phylogenetic underpinnings of wildfire dynamics.
Brad R. Murray   +3 more
wiley   +1 more source

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