نتایج جستجو برای: coral reefs

تعداد نتایج: 17805  

2002
Nancy Knowlton

The author is with the Marine Biology Research Division, Scripps Institution of Oceanography, University of California-San Diego, San Diego, CA 92093-0202, USA and Smithsonian Tropical Research Institute, Balboa, Republic of Panama. E-m ail: [email protected] Rainforests of the sea. Biodiversity in the Indo-Pacific region was measured by counting the total numbers of species in the 13 most spe...

2013
Mark M. Littler Diane S. Littler

What was known about tropical reef algae prior to the use of scuba came largely from dredging studies or drift collections, which usually resulted in highly mutilated specimens and questionable habitat data. Scuba allows a precise determination of ecological conditions and permits in situ photography, two techniques our group has relied on during the past three decades for quantitative studies ...

2013
Carin Jantzen Gertraud M. Schmidt Christian Wild Cornelia Roder Somkiat Khokiattiwong Claudio Richter

Coral reefs are facing rapidly changing environments, but implications for reef ecosystem functioning and important services, such as productivity, are difficult to predict. Comparative investigations on coral reefs that are naturally exposed to differing environmental settings can provide essential information in this context. One prevalent phenomenon regularly introducing alterations in water...

2013
Ricardo González-Muñoz Nuno Simões José Luis Tello-Musi Estefanía Rodríguez

Seven sea anemone species from coral reefs in the southern Gulf of Mexico are taxonomically diagnosed and images from living specimens including external and internal features, and cnidae are provided. Furthermore, the known distribution ranges from another 10 species are extended. No species records of sea anemones have been previously published in the primary scientific literature for coral r...

2011
Guillermo Diaz-Pulido Marine Gouezo Bronte Tilbrook Sophie Dove Kenneth R N Anthony

Space competition between corals and seaweeds is an important ecological process underlying coral-reef dynamics. Processes promoting seaweed growth and survival, such as herbivore overfishing and eutrophication, can lead to local reef degradation. Here, we present the case that increasing concentrations of atmospheric CO(2) may be an additional process driving a shift from corals to seaweeds on...

2010
Carissa J. Klein Natalie C. Ban Benjamin S. Halpern Maria Beger Edward T. Game Hedley S. Grantham Alison Green Travis J. Klein Stuart Kininmonth Eric Treml Kerrie Wilson Hugh P. Possingham

BACKGROUND Coral reefs have exceptional biodiversity, support the livelihoods of millions of people, and are threatened by multiple human activities on land (e.g. farming) and in the sea (e.g. overfishing). Most conservation efforts occur at local scales and, when effective, can increase the resilience of coral reefs to global threats such as climate change (e.g. warming water and ocean acidifi...

2007
Marina Carreiro Marina Carreiro Silva

Title of Dissertation: THE ROLES OF NUTRIENTS AND HERBIVORY IN CONTROLLING THE MICROBIOEROSION OF TROPICAL REEFS Marina Carreiro Silva, Doctor of Philosophy, 2007 Dissertation Directed By: Professor Joseph A. Mihursky (Chair) and Professor Victor S. Kennedy (co-Chair), Center for Environmental Science, Marine, Estuarine and Environmental Sciences Program, University of Maryland Coral reefs worl...

Journal: :Ecology letters 2011
S A Price R Holzman T J Near P C Wainwright

Although coral reefs are renowned biodiversity hotspots it is not known whether they also promote the evolution of exceptional ecomorphological diversity. We investigated this question by analysing a large functional morphological dataset of trophic characters within Labridae, a highly diverse group of fishes. Using an analysis that accounts for species relationships, the time available for div...

Journal: :Environmental monitoring and assessment 1991
L M Chou S Sudara V Manthachitra R Moredee A Snidvongs T Yeemin

Changes in the fringing coral reef community of a small island (Ko Nok) at Pattaya Bay, Gulf of Thailand, were examined at the beginning and at the end of a 3-year period using 7m×7m permanent quadrats for benthic organisms, and visual census along 100m transects for fish. The coral community was dominated by Porites lutea in terms of colony number and areal cover throughout the period. Variati...

2013
Valeriya Komyakova Philip L. Munday Geoffrey P. Jones

The structure of coral reef habitat has a pronounced influence on the diversity, composition and abundance of reef-associated fishes. However, the particular features of the habitat that are most critical are not always known. Coral habitats can vary in many characteristics, notably live coral cover, topographic complexity and coral diversity, but the relative effects of these habitat character...

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