scholarly journals Model-based assessment of the role of human-induced climate change in the 2005 Caribbean coral bleaching event

2007 ◽  
Vol 104 (13) ◽  
pp. 5483-5488 ◽  
Author(s):  
S. D. Donner ◽  
T. R. Knutson ◽  
M. Oppenheimer
Keyword(s):  
Climate Change ◽  
Coral Bleaching ◽  
Bleaching Event ◽  
Model Based ◽  
Caribbean Coral

Inferences on the role of coral bleaching or seasonality on cross-habitat movement of nekton assemblages in adjacent coral reef, seagrass, and mangrove habitats

2020 ◽  
Vol 96 (3) ◽  
pp. 431-448
Author(s):  
Severino G Salmo ◽  
John Charles A Altomonte
Keyword(s):  
Coral Reef ◽  
Coral Bleaching ◽  
Seasonal Changes ◽  
Dominant Species ◽  
Environmental Parameters ◽  
Bleaching Event ◽  
Seasonal Fluctuations ◽  
Bleached Coral ◽  
Habitat Affinity

We investigated shifts in nekton assemblages in coral reef, seagrass, and mangrove habitats that coincided with a coral bleaching event in June 2016. The study was conducted in May 2016 (prebleaching), July 2016 (bleaching), October 2016 (4-mo postbleaching), and February 2017 (7-mo postbleaching) in relatively undisturbed coastal areas in Busuanga, Palawan, western Philippines. We used triangular trap nets to capture nekton samples from each habitat. In coral reef and mangrove habitats, there were increases in nekton abundance and biomass from the prebleaching to the bleaching period. After the bleaching event, however, there were reductions in nekton abundance and biomass at the coral reefs until 7-mo postbleaching. Species composition changed at all sites where shifts in dominant species, habitat affinity, and trophic category were observed. The postbleaching increase in nekton abundance in mangroves coincided with the decreased nekton abundance in the coral reef, suggesting a cross-habitat movement, likely due to the reduced suitability and/or food in the bleached coral reef. The changes in the nekton assemblage may also have been due to seasonal fluctuations in environmental parameters, especially salinity. Our study presents evidence of the possible role of coral bleaching or seasonal changes on cross-habitat movements of nekton assemblages, which can be inferred as an indicator of disturbance. The presence of adjacent vegetated habitats may provide refuge for the affected nekton assemblage of the coral reef.

“And Then We Wept”

2018 ◽  
pp. 71-97
Author(s):  
Irus Braverman
Keyword(s):  
Coral Bleaching ◽  
Scientific Knowledge ◽  
General Public ◽  
Bleaching Event ◽  
Barrier Reef ◽  
Conservation Action ◽  
The Third ◽  
Bright Spots ◽  
The World

Chapter 2, ““And Then We Wept”: Coral Death on Record,” documents the despair side of the pendulum as it contemplates the existing modes and technologies for recording coral bleaching and death. Here, the trajectory is typically of devastation and gloom, as the numbers are depressing at best. Much of the chapter focuses on the third global bleaching event at the Great Barrier Reef, documenting how scientists have both recorded and narrated this event to themselves and to the general public. I examine the role of monitoring in particular, considering whether enhancing scientific knowledge about corals through monitoring is an act of hope, in that it supports conservation action, or one of despair, as it stifles such action and masks the resulting inaction with more and more monitoring. Finally, the chapter shows that even in the world of numbers and maps, “bright spots” and optimistic indexes still rear their more hopeful heads.

scholarly journals THE EFFECT OF TEMPERATURE ON ZOOXANTHELLAE OF ISOPORA PALIFERA AND ACROPORA HYACINTHUS FROM KARANRANG ISLAND, INDONESIA

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Alinda N Hasanah ◽  
Nita Rukminasari ◽  
Budiman Yunus ◽  
Dewi Yanuarita ◽  
Jamaluddin Jompa ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Temperature Stress ◽  
Coral Bleaching ◽  
Marine Ecosystem ◽  
Effect Of Temperature ◽  
Stress Variable ◽  
Acropora Hyacinthus ◽  
Isopora Palifera

Climate change and global warming cause massive damage to the environment. One of the major events that arethreatening the marine ecosystem is coral bleaching. Coral bleaching occurs when corals are exposed to above or belownormal temperatures. The aims of this study are to compare the resistance of Isopora palifera and Acropora hyacinthusfrom Karanrang Island to temperature stress. Four treatment temperatures (28ºC, 30ºC, 32ºC, and 34ºC) were tested toassess the role of temperature stress and bleaching to Isopora palifera and Acropora hyacinthus for 48-hours. Theabundance of zooxanthellae counted as the temperature stress variable. The results showed that there was a difference ofcoral response tothe treatment based on the time of experiment, after 48-hours experimentexposed at temperaturetreatment of 34°C the abundance of zooxanthellae from Isopora paliferawas 0,06 x105 cm-2 and the abundance ofzooxanthellae from Acropora hyacinthus is 0,18 x105cm-2. In comparison between species, Isoporapalifera taken fromKaranrang Island was more resistant to temperature stress thanAcroporahyacinthus.

scholarly journals BLANQUEAMIENTO CORALINO DE 1990 EN EL PARQUE NACIONAL NATURAL CORALES DEL ROSARIO (CARIBE, COLOMBIANO

2016 ◽  
Vol 22 ◽  
Author(s):  
Oscar David Solano ◽  
Gabriel Navas Suarez ◽  
Silvia K. Moreno Forero
Keyword(s):  
Coral Bleaching ◽  
Total Mortality ◽  
Recovery Process ◽  
Bleaching Event ◽  
Acropora Palmata ◽  
Acropora Cervicornis ◽  
Porites Astreoides ◽  
Montastrea Annularis ◽  
Role Of Light

At the beginning of June 1990 a coral-bleaching event was detected in the Islas del Rosario reefs, Colombian Caribbean. A preliminary survey of the Isla Grande northern barrier, and of the Caño Ratón and Isla Pavitos south reefs slopes resulted in a list of 19 affected species, which includes scleractinians, zoantideans and milleporins. Bleached colonies accounted for less than 10% of the total observed. The species most affected were Montastrea annularis and Porites astreoides. The recovery process was followed during a five month period in 20 Montastrea annularis, 3 Acropora palmata and 3 Acropora cervicornis colonies . The bleached patches (injuries) of each colony were meassured, demarked with steel nails and their evolution monitored at monthly intervals. Total mortality was observed in 52% of the injures, incomplete recovery in 40%, and no apparent change in the remaining 8% of the colonies. The coral- bleaching event was coincident with an unusual rise in water temperature (31°C to 32°C) between May and June 1990. As the high temperatures lasted until October of the same year (>30°C), these arÿpressumed to be the main cause of the bleaching phenomenon. The possible role of light as a concomitant factor is-also discussed.

The Role of Late-Night Infotainment Comedy in Communicating Climate Change Consensus

2019 ◽  
Author(s):  
Edward John Roy Clarke ◽  
Anna Klas ◽  
Joshua Stevenson ◽  
Emily Jane Kothe
Keyword(s):  
Climate Change ◽  
Policy Support ◽  
Mitigation Policy ◽  
Behavioural Intentions ◽  
Late Night ◽  
Mitigation And Adaptation ◽  
Climate Action ◽  
Adaptation Policies ◽  
Diverse Audience

Climate change is a politically-polarised issue, with conservatives less likely than liberals to perceive it as human-caused and consequential. Furthermore, they are less likely to support mitigation and adaptation policies needed to reduce its impacts. This study aimed to examine whether John Oliver’s “A Mathematically Representative Climate Change Debate” clip on his program Last Week Tonight polarised or depolarised a politically-diverse audience on climate policy support and behavioural intentions. One hundred and fifty-nine participants, recruited via Amazon MTurk (94 female, 64 male, one gender unspecified, Mage = 51.07, SDage = 16.35), were presented with either John Oliver’s climate change consensus clip, or a humorous video unrelated to climate change. Although the climate change consensus clip did not reduce polarisation (or increase it) relative to a control on mitigation policy support, it resulted in hyperpolarisation on support for adaptation policies and increased climate action intentions among liberals but not conservatives.

Development as Self-Interest

2018 ◽  
Author(s):  
Sarah Blodgett Bermeo
Keyword(s):  
Climate Change ◽  
Developing Countries ◽  
Foreign Aid ◽  
Climate Change Adaptation ◽  
Trade Agreements ◽  
Self Interest ◽  
Adaptation And Mitigation

This chapter introduces the role of development as a self-interested policy pursued by industrialized states in an increasingly connected world. As such, it is differentiated from traditional geopolitical accounts of interactions between industrialized and developing states as well as from assertions that the increased focus on development stems from altruistic motivations. The concept of targeted development—pursuing development abroad when and where it serves the interests of the policymaking states—is introduced and defined. The issue areas covered in the book—foreign aid, trade agreements between industrialized and developing countries, and finance for climate change adaptation and mitigation—are introduced. The preference for bilateral, rather than multilateral, action is discussed.

scholarly journals Individualist–Collectivist Differences in Climate Change Inaction: The Role of Perceived Intractability

2019 ◽  
Vol 10 ◽  
Author(s):  
Peng Xiang ◽  
Haibo Zhang ◽  
Liuna Geng ◽  
Kexin Zhou ◽  
Yuping Wu
Keyword(s):  
Climate Change
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