نتایج جستجو برای: coral cliffs of shoreland

تعداد نتایج: 21167302  

Journal: :The Journal of experimental biology 2017
Nur Garcia-Herrera Sebastian C A Ferse Andreas Kunzmann Amatzia Genin

Coral reefs are amongst the most diverse ecosystems on Earth where complex inter-specific interactions are ubiquitous. An example of such interactions is the mutualistic relationship between damselfishes and branching corals in the Northern Red Sea, where the fish use corals as shelter and provide them with nutrients, enhance the flow between their branches, and protect them from predators. By ...

2012
Morgan S Pratchett Darren J Coker Geoffrey P Jones Philip L Munday

While it is generally assumed that specialist species are more vulnerable to disturbance compared with generalist counterparts, this has rarely been tested in coastal marine ecosystems, which are increasingly subject to a wide range of natural and anthropogenic disturbances. Habitat specialists are expected to be more vulnerable to habitat loss because habitat availability exerts a greater limi...

2017
Jamie M. McDevitt-Irwin Julia K. Baum Melissa Garren Rebecca L. Vega Thurber

The microbial contribution to ecological resilience is still largely overlooked in coral reef ecology. Coral-associated bacteria serve a wide variety of functional roles with reference to the coral host, and thus, the composition of the overall microbiome community can strongly influence coral health and survival. Here, we synthesize the findings of recent studies (n = 45) that evaluated the im...

2017
Momoko Igawa Hiroki Hata Makoto Kato

Solitary scleractinian corals of the genera Heterocyathus and Heteropsammia inhabit soft marine bottoms without attaching to hard substrata. The corallums of these genera contain a coiled cavity inhabited by a sipunculan that roams the seafloor, carrying the host coral with it. The coral serves as a sturdy shelter that protects the sipunculan from possible predators. At the same time, the sipun...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Glenn De'ath Katharina E Fabricius Hugh Sweatman Marji Puotinen

The world's coral reefs are being degraded, and the need to reduce local pressures to offset the effects of increasing global pressures is now widely recognized. This study investigates the spatial and temporal dynamics of coral cover, identifies the main drivers of coral mortality, and quantifies the rates of potential recovery of the Great Barrier Reef. Based on the world's most extensive tim...

2012
Michael A Lang

Coral reefs are, per unit area, the most productive and diverse ecosystems on the planet. Their complexity and, in some places, fragility provide many complications to scientists conducting high quality research in these environments. Scientific diving has been, for the past six decades, a highly cost-effective and productive tool in coral reef research. Using high impact outputs and based main...

2009
B. Gintert N. Gracias A.C.R. Gleason D. Lirman M. Dick P. Kramer R. P. Reid

Efficient survey methodologies that provide comprehensive assessment of reef condition are fundamental to coral reef monitoring. Current state-of-the-art techniques in coral reef assessment rely on highly trained scientific divers to measure indices of reef health (e.g., substrate cover, species richness, coral size, coral mortality). First-generation video mosaics were an innovative survey tec...

2017
Norbert Englebert Pim Bongaerts Paul R. Muir Kyra B. Hay Michel Pichon Ove Hoegh-Guldberg

Mesophotic coral ecosystems in the Indo-Pacific remain relatively unexplored, particularly at lower mesophotic depths (≥60 m), despite their potentially large spatial extent. Here, we used a remotely operated vehicle to conduct a qualitative assessment of the zooxanthellate coral community at lower mesophotic depths (60-125 m) at 10 different locations in the Great Barrier Reef Marine Park and ...

2013
Conrad W. Speed Russ C. Babcock Kevin P. Bancroft Lynnath E. Beckley Lynda M. Bellchambers Martial Depczynski Stuart N. Field Kim J. Friedman James P. Gilmour Jean-Paul A. Hobbs Halina T. Kobryn James A. Y. Moore Christopher D. Nutt George Shedrawi Damian P. Thomson Shaun K. Wilson

Monitoring changes in coral cover and composition through space and time can provide insights to reef health and assist the focus of management and conservation efforts. We used a meta-analytical approach to assess coral cover data across latitudes 10-35°S along the west Australian coast, including 25 years of data from the Ningaloo region. Current estimates of coral cover ranged between 3 and ...

2012
Matthieu Leray Maxime Béraud Arthur Anker Yannick Chancerelle Suzanne C. Mills

Although benthic motile invertebrate communities encompass the vast majority of coral reef diversity, their response to habitat modification has been poorly studied. A variety of benthic species, particularly decapods, provide benefits to their coral host enabling them to cope with environmental stressors, and as a result benefit the overall diversity of coral-associated species. However, littl...

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