Mireille Guillaume

Mireille Guillaume
Muséum National d'Histoire Naturelle

About

59
Publications
14,338
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1,503
Citations
Citations since 2016
12 Research Items
700 Citations
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
Additional affiliations
September 1991 - December 2013
Muséum National d'Histoire Naturelle
Position
  • Lecturer of the MNHN

Publications

Publications (59)
Chapter
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Article
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Background Tropical coral reefs cover ca. 0.1% of the Earth’s surface but host an outstanding biodiversity and provide important ecosystem services to millions of people living nearby. They are currently threatened by local stressors (e.g. nutrient enrichment and chemical pollution arising from poor land management, sewage effluents, agriculture, i...
Article
Full-text available
Background Tropical coral reefs cover only ca. 0.1% of the Earth’s surface but host an outstanding biodiversity and provide important ecosystem services to millions of people living nearby. They are currently threatened by global (e.g., climate change) and local (e.g., chemical pollution) stressors that interact in different ways. While global stre...
Article
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Sharks have declined worldwide and remote sanctuaries are becoming crucial for shark conservation. The southwest Indian Ocean is a hotspot of both terrestrial and marine biodiversity mostly impacted by anthropogenic damage. Sharks were observed during surveys performed from April to June 2013 in the virtually pristine coral reefs around Europa Isla...
Article
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Sharks have declined worldwide and remote sanctuaries are becoming crucial for shark conservation. The southwest Indian Ocean is a hotspot of both terrestrial and marine biodiversity mostly impacted by anthropogenic damage. Sharks were observed during surveys performed from April to June 2013 in the virtually pristine coral reefs around Europa Isla...
Article
Full-text available
Background Tropical coral reefs cover ca. 0.1% of the Earth’s surface but host an outstanding biodiversity and provide important ecosystem services to millions of people living nearby. However, they are currently threatened by both local (e.g. nutrient enrichment and chemical pollution of coastal reefs, arising from poor land management, agricultur...
Article
Full-text available
Complex histories of chronic and acute sea surface temperature (SST) stresses are expected to trigger taxon- and location-specific responses that will ultimately lead to novel coral communities. The 2016 El Niño-Southern Oscillation provided an opportunity to examine largescale and recent environmental histories on emerging patterns in 226 coral co...
Article
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Aim Predictions for the future of coral reefs are largely based on thermal exposure and poorly account for potential geographic variation in biological sensitivity to thermal stress. Without accounting for complex sensitivity responses, simple climate exposure models and associated predictions may lead to poor estimates of future coral survival and...
Article
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Under extreme heat stress, corals expel their symbiotic algae and colour (that is, ‘bleaching’), which often leads to widespread mortality. Predicting the large-scale environmental conditions that reinforce or mitigate coral bleaching remains unresolved and limits strategic conservation actions1,2. Here we assessed coral bleaching at 226 sites and...
Article
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Here we report seasonally resolved sea surface temperatures for the southern Mozambique Channel in the SW Indian Ocean based on multi-trace-element temperature proxy records preserved in two Porites sp. coral cores. Particularly, we assess the suitability of both separate and combined Sr∕Ca and Li∕Mg proxies for improved multielement SST reconstruc...
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Here we report seasonally resolved sea surface temperatures for the southern Mozambique Channel in the SW Indian Ocean based on multi-trace element temperatures proxy records preserved in two Porites sp. coral cores. Particularly, we assess the suitability of both separate and combined Sr/Ca and Li/Mg proxies for improved multi-element SST reconstr...
Article
Rapport sur Le blanchissement des coraux à la Réunion en 2009. Rapport ARVAM/PARETO/Université de la Réunion/MNHN pour le compte du GIP Réserve naturelle marine de la Réunion
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The four fossil terraces of the Glorieuses Islands are described and new dates provided to resolve their stratigraphy, depositional setting and tectonic behavior. Most outcrops consist of a single sedimentary unit that represents the remains of an extensive reef flat dominated by Isopora palifera corals. At Lys Island, this unit is locally overlain...
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Regeneration of artificially induced lesions was monitored in nubbins of the branching coral Acropora muricata at two reef-flat sites representing contrasting environments at Réunion Island (21°07'S, 55°32'E). Growth of these injured nubbins was examined in parallel, and compared to controls. Biochemical compositions of the holobiont and the zooxan...
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The Grand Re´cif of Toliara (GRT) in Madagascar is a large (33 km2) barrier reef system of the SW Indian Ocean that had been well investigated in the 1960s and early 1970s. A massive degradation of the reef has been reported since at least the early 1980s, just a few years after research activities ceased in the area. Examination of historical aeri...
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High-latitude coral reefs may be a refuge and area of reef expansion under climate change. As these locations are expected to become dryer and as livestock and agricultural yields decline, coastal populations may become increasingly dependent on marine resources. To evaluate this social–ecological conundrum, we examined the Grand Récif of Toliara (...
Article
Tromelin is a small coral reef island (∼1 km 2 ) located in the Indian Ocean, approximately 440 km E of Madagascar and 580 km N of La Réunion. Despite the presence of a permanent Météo France weather station on Tromelin since the 1950s, a detailed geomorphological study of the island has never been undertaken. In this paper, we describe the geomorp...
Article
Understanding the linkages between coastal watersheds and adjacent coral reefs is expected to lead to better coral reef conservation strategies. Our study aims to examine the main predictors of environmental proxies recorded in near shore corals and therefore how linked near shore reefs are to the catchment physical processes. To achieve these, we...
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Oral presentation about Growth and regeneration trade-off in Acropora muricata in 12th International Coral Reef Symposium
Article
Oral presentation about Proxy records of historical reef scale temperatures from western Indian Ocean corals
Article
Oral presentation about Coral bleaching in 2011 in NTA's of the southern Mozambique Channel (Europa and Bassas da India)
Conference Paper
Oral presentation about Connectivity of the coral Pocillopora meandrina in the Eparses and Réunion islands
Article
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The capacity of corals for repairing partial mortality is a fundamental determinant of reef resilience. This capacity was assessed in the major reef-building coral Porites lutea by monitoring the regeneration of artificially induced lesions of standard size (330 ± 50 mm2, 3 mm deep) in 4 shallow reef flat populations at Réunion Island, under differ...
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The Abdur Archaeological Site was defined initially by the discovery and dating (125 +/− ka by Ur/Th) of in situ stone tools within uplifted marine terrace deposits located along the southern Red Sea coast of Eritrea, near the small village of Abdur. These tools represent some of the earliest well-dated evidence for human occupation of coastal mari...
Article
Tubastarea sp., a stony coral (Dendrophylliidae) from the Great Hanish in the Archipelago of the Hanish Islands, Yemen, contains, in addition to the known aplysinopsin (1) and 6-bromo-3'-deimino-3'-oxoaplysinopsin (2), the new bis(indole) alkaloid (3). The structures of compounds (1-3) were elucidated by interpretation of spectral data. Compound 3...
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Several environmental factors have been described to trigger bleaching in cnidarian/dinoflagellate endosymbiosis. However, the molecular mechanisms underlying this process still need more investigations. Symbiosis breakdown is known to result from physiological damage to animal host cells and/or symbionts. Cellular oxidation appears to be an essent...
Conference Paper
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Here we present a case study where we compare the skill of predicting coral bleaching using two sources of Sea Surface Temperature (SST) data. Remotely sensed microwave (TMI) data and in situ observations of SST are used to calculate Degree Heating Weeks, a NOAA technique to predict thermal stress on coral reefs. The in situ observations have been...
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Satellite and compiled in situ observations of sea surface temperatures have greatly increased the ability to detect anomalous and persistent warm water and are being widely used to predict climate change, coral bleaching and mortality. A field-based synoptic view of coral bleaching spanning eight countries and ∼35° of latitude in the western India...
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A field study of coral bleaching and coral communities was undertaken spanning 8 countries and similar to 35 degrees of latitude in 2005. This was combined with studies in southern Kenya and northeast Madagascar in 1998 and Mauritius in 2004 to develop a synoptic analysis of coral community structure, bleaching response, susceptibility of the commu...
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Stone tools discovered within uplifted marine terraces along the Red Sea coast of Eritrea at the Abdur Archaeological Site, dated to 125±7 ka (the last interglacial, marine isotope stage 5e), show that early humans occupied coastal areas by this time [Walter et al. (2000) Nature 405, 65–69]. In the present paper the stratigraphy, facies types and f...
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The geographical origin of modern humans is the subject of ongoing scientific debate. The 'multiregional evolution' hypothesis argues that modern humans evolved semi-independently in Europe, Asia and Africa between 100,000 and 40,000 years ago, whereas the 'out of Africa' hypothesis contends that modern humans evolved in Africa between 200 and 100...
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Systematics, the scientific discipline that deals with listing, describing, naming, classifying and identifying living organisms is at a turning point. Expertise becomes extremely rare. For future biodiversity studies relying on species identification, environmental technicians will only be left with monographic descriptions and collections in muse...
Article
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We measured delta18O and delta13C in Porites lutea collected in the Moorea lagoon where the instrumental records show that an El Niño-Southern Oscillation (ENSO) event implies both a cloud cover decrease and a weak sea surface temperature (SST) increase. Two proxies allow an ENSO record to be reconstructed at Moorea: the annual delta13C anomaly, as...
Article
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Growth-bands corresponding to an infra-daily rhythm are described for the first time in the epitheca of a Palaeozoic coral. Microscopic observation of elementary growth increments, the frequency of which is twice that of the external fine ridges, while their distribution shows an outstanding regularity throughout the coral length, gives way to new...
Article
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Porites lutea coral (Scleractinia, Poritidae) shows different depth related growth form variations on fringing reefs at Reunion Island. Porosity was measured on skeletons collected along a transect extending from the intertidal zone on the inner reef flat, to 40 m depth on the outer slope. Two porosity measurements, macroporosity and microporosity...
Article
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Bleaching and death of corals were observed in May-June 1983 at Mayotte Island. All hydrocorals and many scleractinians were affected in upper levels (0-12 m deep) in the lagoon and on the outer slope of the barrier reef. Even corals well-adapted to siltation suffered, as well as soft corals, zoanthids and actinarians. This coral bleaching was asso...

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