Climate records from corals

Lough, Janice

doi:10.1002/wcc.39

Cited by 101 publications

(86 citation statements)

References 168 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variable changes in distribution and depth were also observed in the demersal fish community in the Benguela Current over 1985-2010(Yemane et al, 2014. In the northern section of the system, off Angola, both mean sea surface temperatures and bottom temperatures have warmed.…”

Section: Distributionmentioning

confidence: 89%

“…This likely reflects a scarcity of published long time series from these systems, despite a good mechanistic understanding of mass coral reef bleaching and mortality in response to thermal stress (Hoegh-Guldberg, 1999). However, retrospective studies, represented by analysis of cores taken from living corals (Lough, 2010), as well as baselines constructed from sediment cores for calcifying plankton (Moy et al, 2009), are supplying valuable information on both past local climates and biological responses of these organisms.…”

Section: Long-term Observationsmentioning

confidence: 99%

“…Experimental studies generally show negative responses of heterotrophs and calcified autotrophs to acidification, although results are highly variable and, of concern, show a trend overall toward enhanced sensitivity when thermal stress increases (Harvey et al, 2013;Kroeker et al, 2013;. Observations of changing calcification are sparse in MCID (2%), with studies from tropical corals in the Indian (including Red Sea), Pacific and Atlantic (Caribbean) Oceans dominating (36 of 40 observations); the remaining 4 observations were of phytoplankton in the north-east Atlantic ; Iglesias-Rodriguez The skeletons of corals, contain valuable information on past environmental conditions and the calcification rates of species (Lough, 2010). Generally, cores from massive corals (e.g., Porites spp.)…”

Section: Calcificationmentioning

confidence: 99%

See 2 more Smart Citations

Responses of Marine Organisms to Climate Change across Oceans

et al. 2016

View full text Add to dashboard Cite

Climate change is driving changes in the physical and chemical properties of the ocean that have consequences for marine ecosystems. Here, we review evidence for the responses of marine life to recent climate change across ocean regions, from tropical seas to polar oceans. We consider observed changes in calcification rates, demography, abundance, distribution, and phenology of marine species. We draw on a database of observed climate change impacts on marine species, supplemented with evidence in the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. We discuss factors that limit or facilitate species' responses, such as fishing pressure, the availability of prey, habitat, light and other resources, and dispersal by ocean currents. We find that general trends in species' responses are consistent with expectations from climate change, including shifts in distribution to higher latitudes and to deeper locations, advances in spring phenology, declines in calcification, and increases in the abundance of warm-water species. The volume and type of evidence associated with species responses to climate change is variable across ocean regions and taxonomic groups, with predominance of evidence derived from the heavily-studied north Atlantic Ocean. Most investigations of the impact of climate change being associated with the impacts of changing temperature, with few observations of effects of changing oxygen, wave climate, precipitation (coastal waters), or ocean acidification. Observations of species responses that have been linked to anthropogenic climate change are widespread, but are still lacking for some taxonomic groups (e.g., phytoplankton, benthic invertebrates, marine mammals).

show abstract

Section: Distributionmentioning

confidence: 89%

Section: Long-term Observationsmentioning

confidence: 99%

Section: Calcificationmentioning

confidence: 99%

See 1 more Smart Citation

Responses of Marine Organisms to Climate Change across Oceans

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Isotopic and elemental tracers incorporated into their massive carbonate skeletons during growth enable the construction of temperature-and salinity-related proxy records (e.g., Lough, 2010). When analyzed at sub-seasonal resolution to reveal annual cycles, and supported by distinct annual density bands, corals can provide accurately dated nearmonthly resolved reconstructions of seasonal, interannual, and decadal climate variability (e.g., Cobb et al, 2001;Linsley et al, 2004;Felis et al, 2009b;DeLong et al, 2012).…”

Section: Coralsmentioning

confidence: 99%

Comparing proxy and model estimates of hydroclimate variability and change over the Common Era

Smerdon¹,

Luterbacher²,

Phipps³

et al. 2017

Clim. Past

101

View full text Add to dashboard Cite

Abstract. Water availability is fundamental to societies and ecosystems, but our understanding of variations in hydroclimate (including extreme events, flooding, and decadal periods of drought) is limited because of a paucity of modern instrumental observations that are distributed unevenly across the globe and only span parts of the 20th and 21st centuries. Such data coverage is insufficient for characterizing hydroclimate and its associated dynamics because of its multidecadal to centennial variability and highly regionalized spatial signature. High-resolution (seasonal to decadal) hydroclimatic proxies that span all or parts of the Common Era (CE) and paleoclimate simulations from climate models are therefore important tools for augmenting our understanding of hydroclimate variability. In particular, the comparison of the two sources of information is critical for addressing the uncertainties and limitations of both while enriching each of their interpretations. We review the principal proxy data available for hydroclimatic reconstructions over the CE and highlight the contemporary understanding of how these proxies are interpreted as hydroclimate indicators. We also review the available last-millennium simulations from fully coupled climate models and discuss several outstanding challenges associated with simulating hydroclimate variability and change over the CE. A specific review of simulated hydroclimatic changes forced by volcanic events is provided, as is a discussion of expected improvements in estimated radiative forcings, models, and their implementation in the future. Our review of hydroclimatic proxies and last-millennium model simulations is used as the basis for articulating a variety of considerations and best practices for how to perform proxy-model comparisons of CE hydroclimate. This discussion provides a framework for how best to evaluate hydroclimate variability and its associated dynamics using these comparisons and how they can better inform interpretations of both proxy data and model simulations. We subsequently explore means of using proxy-model comparisons to better constrain and characterize future hydroclimate risks. This is explored specifically in the context of several examples that demonstrate how proxy-model comparisons can be used to quantitatively constrain future hydroclimatic risks as estimated from climate model projections.

show abstract

“…Global warming and accompanying environmental change are directly affecting the health and distribution of tropical marine corals [1][2][3][4] . Multiple impacts are being observed, including coral bleaching and the emergence of infectious diseases [5][6] .…”

Section: Introductionmentioning

confidence: 99%

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals

Sivaguru

Fried

Miller

et al. 2014

JoVE

View full text Add to dashboard Cite

An integrated suite of imaging techniques has been applied to determine the three-dimensional (3D) morphology and cellular structure of polyp tissues comprising the Caribbean reef building corals Montastraeaannularis and M. faveolata. These approaches include fluorescence microscopy (FM), serial block face imaging (SBFI), and two-photon confocal laser scanning microscopy (TPLSM). SBFI provides deep tissue imaging after physical sectioning; it details the tissue surface texture and 3D visualization to tissue depths of more than 2 mm. Complementary FM and TPLSM yield ultra-high resolution images of tissue cellular structure. Results have: (1) identified previously unreported lobate tissue morphologies on the outer wall of individual coral polyps and (2) created the first surface maps of the 3D distribution and tissue density of chromatophores and algae-like dinoflagellate zooxanthellae endosymbionts. Spectral absorption peaks of 500 nm and 675 nm, respectively, suggest that M. annularis and M. faveolata contain similar types of chlorophyll and chromatophores. However, M. annularis and M. faveolata exhibit significant differences in the tissue density and 3D distribution of these key cellular components. This study focusing on imaging methods indicates that SBFI is extremely useful for analysis of large mm-scale samples of decalcified coral tissues. Complimentary FM and TPLSM reveal subtle submillimeter scale changes in cellular distribution and density in nondecalcified coral tissue samples. The TPLSM technique affords: (1) minimally invasive sample preparation, (2) superior optical sectioning ability, and (3) minimal light absorption and scattering, while still permitting deep tissue imaging. Video LinkThe video component of this article can be found at

show abstract

Climate records from corals

Cited by 101 publications

References 168 publications

Responses of Marine Organisms to Climate Change across Oceans

Responses of Marine Organisms to Climate Change across Oceans

Comparing proxy and model estimates of hydroclimate variability and change over the Common Era

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals

Contact Info

Product

Resources

About