scholarly journals Climate change alters plant biogeography in Mediterranean prairies along the West Coast, USA

2015 ◽  
Vol 22 (2) ◽  
pp. 845-855 ◽  
Author(s):  
Laurel Pfeifer-Meister ◽  
Scott D. Bridgham ◽  
Lorien L. Reynolds ◽  
Maya E. Goklany ◽  
Hannah E. Wilson ◽  
...  
2018 ◽  
Vol 61 (5) ◽  
pp. 429-440 ◽  
Author(s):  
Milica Stankovic ◽  
Naruemon Tantipisanuh ◽  
Anchana Prathep

Abstract Seagrass ecosystems are important contributors to mitigation of climate change, since they are responsible for large carbon sinks. However, there is limited knowledge regarding the importance of variability of carbon storage in various ecosystems. In this study, we estimated carbon storage in several structurally different seagrass meadows along the west coast of Thailand and determined whether degree of exposure, human disturbance, and meadow type influenced carbon storage within these meadows. Carbon content within the living vegetation was on average 3±2.7 Mg ha−1, whilst average storage of carbon in the sediment was 122±35.3 Mg ha−1. Meadow type and disturbance had a significant influence on total carbon storage in the ecosystem, while the degree of exposure of the bay did not show great differences. Uniform meadows had a higher average total carbon storage than mixed meadows (133±36.2 and 110±41.3 Mg ha−1, respectively). Undisturbed meadows had a higher average total carbon storage than disturbed ones (140±36.5 and 103±34.8 Mg ha−1, respectively). The results obtained contribute to our understanding of carbon storage on an ecosystem scale and can provide a baseline for proper management, conservation, and climate change studies in the region.


2019 ◽  
Vol 200 ◽  
pp. 103229 ◽  
Author(s):  
Yi Xu ◽  
Caihong Fu ◽  
Angelica Peña ◽  
Roy Hourston ◽  
Richard Thomson ◽  
...  

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Rishika Pardikar

A new study found significant increases in the intensity, frequency, and duration of cyclonic storms over the Arabian Sea. Is the west coast prepared?


2012 ◽  
Vol 6 (4) ◽  
pp. 3491-3501 ◽  
Author(s):  
P. W. Leclercq ◽  
A. Weidick ◽  
F. Paul ◽  
T. Bolch ◽  
M. Citterio ◽  
...  

Abstract. Past glacier fluctuations provide insight into glacier dynamics, climate change, and the contribution of glaciers to sea-level rise. Here, the length fluctuations since the 19th century of 18 local glaciers in West and South Greenland are presented, extending and updating the study by Weidick (1968). The studied glaciers all show an overall retreat with an average of 1.2 ± 0.2 km over the 20th century, indicating a general rise of the equilibrium line along the west coast of Greenland during the last century. The rate of retreat was largest in the first half of the 20th century.


2020 ◽  
Author(s):  
Shelly Bhagat ◽  

One of the greatest threats to humanity is climate change, the effects of which have become evident in recent years with wildfires raging through the west coast of the United States, glaciers and icecaps melting in the arctic, and an increasing number of seasonal hurricanes. Scientists predict that we have approximately ten years to reverse climate change before its effects become permanent.


2017 ◽  
Vol 30 (24) ◽  
pp. 10237-10258 ◽  
Author(s):  
Richard Seager ◽  
Naomi Henderson ◽  
Mark A. Cane ◽  
Haibo Liu ◽  
Jennifer Nakamura

The recent California drought was associated with a persistent ridge at the west coast of North America that has been associated with, in part, forcing from warm SST anomalies in the tropical west Pacific. Here it is considered whether there is a role for human-induced climate change in favoring such a west coast ridge. The models from phase 5 of the Coupled Model Intercomparison Project do not support such a case either in terms of a shift in the mean circulation or in variance that would favor increased intensity or frequency of ridges. The models also do not support shifts toward a drier mean climate or more frequent or intense dry winters or to tropical SST states that would favor west coast ridges. However, reanalyses do show that over the last century there has been a trend toward circulation anomalies over the Pacific–North American domain akin to those during the height of the California drought. The trend has been associated with a trend toward preferential warming of the Indo–west Pacific, an arrangement of tropical oceans and Pacific–North American circulation similar to that during winter 2013/14, the driest winter of the California drought. These height trends, however, are not reproduced in SST-forced atmosphere model ensembles. In contrast, idealized atmosphere modeling suggests that increased tropical Indo-Pacific zonal SST gradients are optimal for forcing height trends that favor a west coast ridge. These results allow a tenuous case for human-driven climate change driving increased gradients and favoring the west coast ridge, but observational data are not sufficiently accurate to confirm or reject this case.


2019 ◽  
Vol 169 ◽  
pp. 273-283 ◽  
Author(s):  
Seyedabdolhossein Mehvar ◽  
Tatiana Filatova ◽  
Motaleb Hossain Sarker ◽  
Ali Dastgheib ◽  
Roshanka Ranasinghe

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