Results 61 to 70 of about 152,766 (246)

Seagrasses under stress: Independent negative effects of elevated temperature and light reduction at multiple levels of organization

Limnology and Oceanography, EarlyView.
Abstract Seagrasses are important foundation species, which support coastal biodiversity and provide socioeconomic benefits. However, seagrasses are threatened by anthropogenic changes, including the elevated temperature associated with marine heatwaves (MHWs) and light limitation from eutrophication or increased sedimentation.
Alissa V. Bass, Laura J. Falkenberg, Benoit Thibodeau   +2 more
wiley   +1 more source

Development of convection along the SPCZ within a Madden-Julian oscillation [PDF]

, 1996
A subtropical Rossby wave propagation mechanism is proposed to account for the poleward and eastward progression of intraseasonal convective anomalies along the South Pacific Convergence Zone (SPCZ) that is observed in a significant proportion of Madden ...
Ardanuy, Emanuel, Gill, Heckley, Hoskins, Hoskins, Hoskins, Hoskins, Hsu, Jin, Ju, Kiladis, Knutson, Kodama, Lau, Matthews, Nastula, Neelin, Rodwell, Rui, Vincent, Wang, Webster, Webster, Weickmann, Weickmann   +25 more
core   +2 more sources

Gross oxygen production and microbial community respiration in the oligotrophic ocean

Limnology and Oceanography, EarlyView.
Abstract Uncertainties in the temporal and spatial patterns of marine primary production and respiration limit our understanding of the ocean carbon (C) cycle and our ability to predict its response to environmental changes. Here we present a comprehensive time‐series analysis of plankton metabolism at the Hawaii Ocean Time‐series program site, Station
Sara Ferrón, Karin M. Björkman, Matthew J. Church, David M. Karl   +3 more
wiley   +1 more source

Plankton and particle biomass size spectra on the Southwest Atlantic: Case studies in tropical and subtropical areas [PDF]

, 2015
This thesis is centered on the application of the Normalized Biomass Size Spectra (NBSS) theory to the study of plankton systems in shelf and oceanic areas of the tropical and subtropical Southwest Atlantic. I evaluated NBSS parameters over different environmental settings and their utility as proxies for system in Brazilian waters.
openaire   +2 more sources

Temperature‐dependent growth and activity in a globally distributed nitrogen‐fixing haptophyte

Limnology and Oceanography, EarlyView.
Abstract Dinitrogen (N2)‐fixing microorganisms play a crucial role in supplying nitrogen (N) to the oceans by converting atmospheric N2 into bioavailable N. N2 fixation was thought to be limited to warm oligotrophic ocean waters, but the association between the N2‐fixing UCYN‐A cyanobacterium and specific haptophytes, including Braarudosphaera ...
Esther Wing Kwan Mak, Kendra A. Turk‐Kubo, Anna V. Voznyuk, Mary R. Gradoville, Tyler Coale, Kyoko Hagino, Jonathan P. Zehr   +6 more
wiley   +1 more source

Seasonal and spatial transitions in phytoplankton assemblages spanning estuarine to open ocean waters of the tropical Pacific

Limnology and Oceanography, EarlyView.
Abstract Islands in the tropical Pacific supply elevated nutrients to nearshore waters that enhance phytoplankton biomass and create hotspots of productivity in otherwise nutrient‐poor oceans. Despite the importance of these hotspots in supporting nearshore food webs, the spatial and temporal variability of phytoplankton enhancement and changes in the ...
Sarah J. Tucker, Yoshimi M. Rii, Kelle C. Freel, Keliʻiahonui Kotubetey, A. Hiʻilei Kawelo, Kawika B. Winter, Michael S. Rappé   +6 more
wiley   +1 more source

Preliminary list of bryophytes of Heishiding Nature Reserve, Guangdong Province, China [PDF]

, 1994
Thirty-seven species of hepatics and 66 species of mosses are reported from Heishiding Nature Reserve, including eight taxa new to China and one species new to mainland China.
Li, Zhi-Hua, Piippo, Sinikka
core  

Is the subtropical jet shifting poleward? [PDF]

, 2019
The tropics are expanding poleward at about 0.5∘ per decade in observations. This poleward expansion of the circulation is consistently reported using Hadley cell edge metrics and lower-atmospheric tropical edge metrics.
Kelleher, Michael E., Maher, Penelope, Methven, John, Sansom, Philip G.   +3 more
core   +2 more sources

The grazing impact of megaherbivores on sediment accumulation and stabilization functions of seagrass meadows in a subtropical coral reef lagoon

Limnology and Oceanography, EarlyView.
Abstract Seagrasses thrive in shallow lagoons between land and fringing coral reefs, serving as a buffer that mitigates the propagation of environmental stressors from land to reefs. However, mass grazing by megaherbivores poses a significant threat to seagrass loss, impacting the sustainability of tropical coastal habitats. Despite the urgency of this
Toshihiro Miyajima, Takashi Nakamura, Atsushi Watanabe, Naoko Morimoto, Kazuo Nadaoka   +4 more
wiley   +1 more source

Decadal survival of tropical pioneer seeds in the soil seed bank is accompanied by fungal infection and dormancy release

Functional Ecology, EarlyView., 2023
Read the free Plain Language Summary for this article on the Journal blog. Abstract Pioneer trees require high‐light environments for successful seedling establishment. Consequently, seeds of these species often persist in the soil seed bank (SSB) for periods ranging from several weeks to decades.
Paul‐Camilo Zalamea, Carolina Sarmiento, A. Elizabeth Arnold, Venus Kuo, Carolyn Delevich, Adam S. Davis, Thomas A. Brown, James W. Dalling   +7 more
wiley   +1 more source