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Journal articles on the topic 'Island of Mayotte'

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Author: Grafiati

Published: 27 July 2024

Last updated: 28 July 2024

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1

Kreiter, Serge, Reham I. A. Abo-Shnaf, and Rose-My Payet. "Phytoseiid mites of Mayotte Island (Acari: Mesostigmata)." Acarologia 60, no. 3 (September 8, 2020): 622–42. http://dx.doi.org/10.24349/acarologia/20204391.

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Mayotte is one of the four main islands constituting Comoros Archipelago, with Anjouan, Mohéli and Grande Comore. Among them, it is the closest island to Madagascar. So far, only one species of the mite family Phytoseiidae (Acari: Mesostigmata) had been reported from this island in an early study. In addition, only five species were recently collected from Grande Comore. In this paper, we report the results of a survey conducted at the end of 2018 in Mayotte Island, in which 18 species are reported for the first time for the Mayotte Island.

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2

Kreiter, Serge, Rose-My Payet, and Hamza Abdou Azali. "Phytoseiid mites (Acari: Mesostigmata) of Anjouan Island (Comoros Archipelago)." Acarologia 61, no. 1 (January 20, 2021): 62–83. http://dx.doi.org/10.24349/acarologia/20214418.

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Anjouan is one of the four main islands constituting Comoros Archipelago, with Mayotte, Mohéli and Grande Comore Islands. It is the second Island closer from Madagascar after Mayotte. So far, no species of the mite family Phytoseiidae (Acari: Mesostigmata) had been reported from this island. In this paper, 18 species are recorded from a survey conducted at the end of 2018 in Anjouan Island.

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3

Kreiter, Serge, Rose-My Payet, and Hamza Abdou Azali. "Phytoseiid mites (Acari: Mesostigmata) of Mohéli Island (Comoros Archipelago)." Acarologia 61, no. 1 (January 22, 2021): 94–114. http://dx.doi.org/10.24349/acarologia/20214419.

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Mohéli is one of the four main islands constituting Comoros Archipelago, with Mayotte, Anjouan and Grande Comore Islands. It is the third Island closer from Madagascar after Mayotte and Anjouan. So far, no species of the mite family Phytoseiidae had been reported from this island. We report in this paper the results of a survey conducted at the end of 2018 in Mohéli Island, in which 18 species have been recorded.

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4

Kreiter, Serge, Rose-My Payet, Jacques Fillâtre, and Hamza Abdou Azali. "First records of Phytoseiidae (Acari: Mesostigmata) from one island of the Comoros archipelago." Acarologia 58, no. 3 (June 1, 2018): 529–45. http://dx.doi.org/10.24349/acarologia/20184256.

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The Comoros Archipelago is constituted of four islands. These islands are located in the North Mozambique Channel in the Indian Ocean, one of the world’s hotspots of biodiversity. Despite this status of hotspot, only one species of Phytoseiidae was known from this Archipelago, from Mayotte: Phytoseius mayottae. No species were recorded from the three other islands. We report in this paper the results of a preliminary survey in Great Comoro or “Grande Comore” Island also called Ngazidja in the Comorian language (= Shikomori) with five species recorded.

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5

Poupin, Joseph, Regis Cleva, Jean-Marie Bouchard, Vincent Dinhut, and Jacques Dumas. "Stomatopod Crustaceans from Mayotte Island (Crustacea, Hoplocarida)." Atoll Research Bulletin, no. 624 (June 6, 2019): 2–14. http://dx.doi.org/10.5479/si.0077-5630.624.

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A collection of stomatopods assembled during the KUW 2009 expedition to Mayotte Island and deposited in the Muséum national d’Histoire naturelle Paris is studied with a review of previous records from Comoros and Mayotte Island. In total 14 species are recognized 3 of them being new records for this region. A brief comparison with other regions studied for stomatopods indicates that sampling is still insufficient in Comoros and Mayotte and that dozens of species remain to be inventoried in that region.

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6

NICOLAS, VINCENT, ATTILIO CARAPEZZA, DAVID A. RIDER, and PETR KMENT. "New records, diagnostics and preliminary checklist of the superfamily Pentatomoidea (Hemiptera: Heteroptera) from the Comoro Islands." Zootaxa 5481, no. 1 (July 15, 2024): 1–29. http://dx.doi.org/10.11646/zootaxa.5481.1.1.

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The following species are recorded from the Comoro Islands for the first time: 12 species of Pentatomidae: Pentatominae—Anoano pronotalis Cachan, 1952 (from Mayotte), Antestiopsis clymeneis cf. galtiei (Frappa, 1934) (Mayotte), Bagrada hilaris (Burmeister, 1835) (Mayotte), Bathycoelia rodhaini Schouteden, 1913 (Mayotte), Coquerelia ventralis Horváth, 1904 (Mayotte), Eurysaspis transversalis Signoret, 1851 (Anjouan, Grande Comore, Mayotte), Gadarscama ebenaui Reuter, 1887 (Anjouan, Grande Comore, Mohéli, Mayotte), Lerida annulicornis (Signoret, 1861) (Anjouan, Mayotte), Neoacrosternum validum (Horváth, 1904) (Grand Comore, Mayotte), Nezara viridula (Linnaeus, 1758) (Mayotte), Piezodorus hybneri (Gmelin, 1790) (Mayotte), and Stenozygum mirabile (Signoret, 1861) (Mayotte); two species of Plataspidae—Brachyplatys hemisphaerica (Westwood, 1837) (Mayotte) and Coptosoma maculatum Westwood, 1837 (Mayotte); and one species of Scutelleridae—Hotea denticulata Stål, 1865 (Mayotte). The endemic pentatomine species Bathycoelia cuneifera Bergroth, 1893, syn. nov., is recognized as a junior subjective synonym of the widely distributed African species Bathycoelia thalassina (Herrich-Schäffer, 1844). The lectotype of B. cuneifera is designated herein. The checklist of the Pentatomoidea of Comoro Islands includes six species of Cydnidae, 21 species of Pentatomidae, two species of Plataspidae, one species of Scutelleridae and 1 species of Tessaratomidae. Of these species, six are endemic to the archipelago, 14 species are subendemic (shared with Madagascar and/or Aldabra Atoll), and nine species are widespread, occurring also on the African mainland (including the cosmopolitan pest Nezara viridula and two species of Bathycoelia Amyot & Serville, 1843 from the Guinean area, all three possibly alien to the archipelago). We document an additional eight species (six species of Pentatomidae, one species of each Scutelleridae and Tessaratomidae) that are identified to generic level only (two recorded from Grand Comore, seven from Mayotte, one of them occuring in both islands). Mayotte is the best sampled island, with 28 recorded species, followed by Grande Comore (11 species), Anjouan (six species), and Mohéli (four species). In addition the following new records are provided: Bathycoelia rodhaini from Cameroon, Central African Republic, Gabon and Zambia, Bathycoelia thalassina from Central African Republic and Ethiopia, and Piezodorus hybneri from Angola (Cabinda) and Sierra Leone. The type locality of Eurysaspis transversalis Signoret, 1851, India: Puducherry, is considered an error as the species occurs only in Madagascar and Comoros. The following plant associations are recorded from Mayotte: Bagrada hilaris on Cleome viscosa (Cleomaceae), Eurysaspis transversalis on Senna singueana (Fabaceae), and Piezosternum sp. on Cucumis sativus (Cucurbitaceae) and Mikania capensis (Asteraceae).

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7

Tarnaud, Laurent, and Bruno Simmen. "A major increase in the population of brown lemurs on Mayotte since the decline reported in 1987." Oryx 36, no. 3 (July 2002): 297–300. http://dx.doi.org/10.1017/s0030605302000522.

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The population of the Mayotte brown lemur Eulemur fulvus fulvus on the island of Mayotte in the Indian Ocean was reported to have decreased by 50% between 1975 and 1987, from 50,000 to 25,000. From a series of censuses carried out in 1999 and 2000 in the various vegetation types of the island, we estimate that the lemur population now numbers 42,000–72,000. The decline observed in 1987 may have been largely caused by the cyclone that devastated Mayotte in 1984. That the population has recovered must not obscure the fact that loss of forest, increased human pressure associated with further development of infrastructure, and changes in agricultural practices will undoubtedly continue to affect this species on Mayotte.

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8

Kreiter, Serge, Rose-My Payet, Hadji Mouigni, Martial Douin, Marie-Stéphane Tixier, and Hamza Abdou Azali. "New records of phytoseiid mites (Acari: Mesostigmata) of Grande Comore Island (Comoros Archipelago)." Acarologia 61, no. 2 (April 7, 2021): 241–73. http://dx.doi.org/10.24349/acarologia/20214429.

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Grande Comore is the larger Island of the four main islands constituting Comoros Archipelago. It is the fourth Island starting from Madagascar after Mayotte, Anjouan and Mohéli and closer to the African coast (Mozambique and Tanzania). So far, only five species of the mite family Phytoseiidae had been reported from this island. We report in this paper the results of a survey conducted at the end of 2018 in Grande Comore Island, in which 29 species have been recorded.

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9

Buron, Lionel. "Mayotte, The Epitome of Insular Syndrome." International Journal of Clinical Case Reports and Reviews 16, no. 05 (March 26, 2024): 01–04. http://dx.doi.org/10.31579/2690-4861/367.

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As A Result of The Rupture and Conﬁnement Effects Experienced Following Arrival on The Island, Some Individuals Studied, Despite Having Been Unaffected By Psychiatric Disorders In The Past, Go On To Develop Some Particular Psychiatric Symptoms. We Will Show How the Discovery of An Exotic Insular Psychic Space Can Lead to The Emergence of Different Clinical Syndromes. This Study Was Born from The Psychiatric Treatment of Expatriate Patients On The Island Of Mayotte, Using Psychodynamic Techniques And Methods. The Island Is Associated with Speciﬁc Symbolisms That Are Sources of Vulnerability: Separation, Lack of Space, Promiscuity, Discontinuity of The Human Bond, Paradoxical Temporality. Moreover, The Mental Representation of Such A Conﬁned, Limited Space, Invested With An Ancient Imaginary, Is Inﬂuenced By Some Universal Myths. As An Object of Desire, The Island Is The Source Of Phantasmatic Projections, And One’s Arrival There In Reality Proves To Be Potentially Pathogenic And Can Reveal A Previously Dormant Psychic Precariousness.

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10

Vieites, David R., Sandra Nieto-Román, Marcos Peso Fernández, and Javier H. Santos-Santos. "Hidden in plain sight: a new frog species of the genus Blommersia from the oceanic island of Mayotte, Comoros archipelago." ZooKeys 994 (November 17, 2020): 149–66. http://dx.doi.org/10.3897/zookeys.994.57012.

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The amphibian fauna of the western Indian ocean volcanic island of Mayotte is currently constituted by two species belonging to two genera of the anuran family Mantellidae: Blommersia transmarina and Boophis nauticus. These were recently described after intense fieldwork on the herpetofauna of the island. We here describe a third new species of frog from Mayotte, based on morphological and molecular data, that occurs in sympatry with the others and was utterly unnoticed until now. Genetic analyses of the16S rRNA gene, including all described and several undescribed species of the genus Blommersia from Madagascar and Mayotte, confirms that the new species is the sister species of Blommersia transmarina. Both species show apparent morphological differences as well as different life histories, ecology and genetics that confirm Blommersia nataliaesp. nov. as a new species. We propose an IUCN Red List status of Critically Endangered for B. nataliaesp. nov.

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11

Ngumbau, Veronicah Mutele, Mwadime Nyange, Neng Wei, Benjamin W. van Ee, Paul E. Berry, Itambo Malombe, Guang-Wan Hu, and Qing-Feng Wang. "A New Species of Croton (Euphorbiaceae) from a Madagascan Lineage Discovered in Coastal Kenya." Systematic Botany 45, no. 2 (June 13, 2020): 242–48. http://dx.doi.org/10.1600/036364420x15862837791294.

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Abstract—Croton kinondoensis, a new species from Kenya, is described and illustrated here with photographs. It is found in the sacred Kaya Kinondo Forest, one of the last remaining coastal forests patches in Kenya. Its morphology and systematic position based on ITS and trnL-F DNA sequence data clearly place it within the Adenophorus Group of Croton, a clade of ca. 15 species otherwise known only from Madagascar and the Comoros Archipelago. Its closest affinities appear to lie with Croton mayottae, from the island of Mayotte, and C. menabeensis, from northwestern Madagascar. This new species likely represents an independent dispersal of Croton from Madagascar to mainland Africa.

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12

SIMON, ERIC, NORTON HILLER, ALAN LOGAN, DIMITRI THEUERKAUFF, and BERNARD MOTTEQUIN. "Recent thecideide brachiopods from a submarine cave in the Department of Mayotte (France), northern Mozambique Channel." Zootaxa 4613, no. 2 (June 5, 2019): 201. http://dx.doi.org/10.11646/zootaxa.4613.2.1.

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For the first time large numbers of thecideide brachiopods have been collected from the Mozambique Channel, more particularly from the western part of the Comorian Island of Mayotte (France). The moderately diverse brachiopod fauna is from a submarine cave situated on the second barrier reef encircling this island, with three different genera being found: Thecidellina, Ospreyella and Minutella. The last genus is represented by M. cf. minuta (Cooper, 1981), which was first discovered around Madagascar. Ospreyella is represented by a new species (O. mayottensis sp. nov.) as is Thecidellina, which is represented by T. leipnitzae sp. nov. This species is markedly distinct from T. europa Logan et al., 2015 from Europa Island in the southern Mozambique Channel (1,200 km south of Mayotte), providing an example of allopatric speciation in an isolated cryptic habitat.

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13

Pailler, Thierry, Benjamin Warren, and Jean-Noël Labat. "Biologie de la reproduction de Aloe mayottensis (Liliaceae), une espèce endémique de l'île Mayotte (Océan Indien)." Canadian Journal of Botany 80, no. 4 (April 1, 2002): 340–48. http://dx.doi.org/10.1139/b02-019.

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A particularly interesting aspect of the study of organisms in insular environments is plant reproduction and the interaction of plants with their pollinators. Differences in composition between the fauna and flora of continental and island populations, combined with their geographical isolation, have frequently driven rapid evolution in colonizing populations. In particular, floral traits and compatibility systems tend to favour autogamy in response to a paucity of pollinators in the environment. In this context we investigate the origins of the reproductive biology of Aloe mayottensis Berger, a lily endemic to the island of Mayotte. We show that this species is pollinated by the island's endemic sunbird species, and has floral traits and a reproduction system that favour allogamy. Our results show that A. mayottensis is a protandrous and partially self-compatible species. Analysis of stigmatic pollen load shows that stigma received a mean of 56 crossed pollen grains and 62.2 selfed pollen grains per stigma. Study of visitation rates of plants and flowers by the sunbird showed that there is daily variation in the activity of this pollinator, and that males are more active than females.Key words: Aloe mayottensis, floral biology, Lomatophyllum, Nectarinia, bird pollinization, sunbirds, Oceanic islands, Mayotte.

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14

Diagne, Dimitri. "“Among the French People”: The Departmentalization of Mayotte and the Colonial Politics of Inclusion." French Colonial History 21-22 (December 31, 2023): 169–99. http://dx.doi.org/10.14321/frencolohist.21.22.2023.0169.

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Abstract With its 2011 change in administrative status, Mayotte, a small island colony in the Mozambique Channel, became the only contemporary French department with an indigenous African Muslim population. Mayotte's departmentalization required restructuring a colonial local legal system influenced by Islamic, Swahili, and Malagasy legal practices. By putting legislation and public discourse concerning Mayotte's status into conversation with earlier political movements within the French Empire and scholarship on French colonial governance, I show how Mahoran politicians, writers, and activists advocating for departmentalization invoked claims to racialized notions of belonging “among the French People.” These claims were joined by demands that France fulfill its Republican promise by granting juridicopolitical inclusion to a colonial population. These distinct but related political discourses illuminate central features of the mutually constitutive relationship between law, race, and citizenship in the French Republic.

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15

Poupin, Joseph, Regis Cleva, Jean-Marie Bouchard, Vincent Dinhut, and Jacques Dumas. "The Crabs from Mayotte Island (Crustacea, Decapoda, Brachyura)." Atoll Research Bulletin, no. 617 (May 1, 2018): vi—109. http://dx.doi.org/10.5479/si.0077-5630.617.

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16

Massé, D., P. Lefeuvre, H. Delatte, A. L. Abdoul Karime, B. Hostachy, B. Reynaud, and J. M. Lett. "Tomato chlorosis virus: first report in Mayotte Island." Plant Pathology 57, no. 2 (April 2008): 388. http://dx.doi.org/10.1111/j.1365-3059.2007.01760.x.

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17

Bedessem, Baptiste, Lise Retailleau, Jean-Marie Saurel, and Ludivine Sadeski. "Citizen Science for Disaster Risk Governance: Towards a Participative Seismological Monitoring of the Mayotte Volcanic Crisis." Citizen Science: Theory and Practice 8, no. 1 (June 27, 2023): 44. http://dx.doi.org/10.5334/cstp.573.

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The United Nations (UN) Sendai Framework for Disaster Risk Reduction 2015–2030 aims to mitigate natural disasters, specifically in developing regions. It promotes the adoption of people-centered disaster risk reduction approaches. Hence, citizen science represents an interesting tool to engage populations in the mitigation of disaster risk, through data collection and analysis, and in the dissemination of scientific and safety information. Herein, we evaluate the potential and feasibility of a citizen science project on the island of Mayotte (in the Mozambique Channel). Mayotte has been experiencing an unexpected volcano-seismic crisis since 2018, which has generated strong anxiety in the population. To address this, we have developed a citizen seismology program to engage Mayotte’s inhabitants in seismic data processing. First, we conducted an initial test of our protocol to identify seismic events with a set of university students. We then conducted 15 interviews with members of local administrations and associations to assess the potential for engaging the general population in this project. The results show that we are able to collect reliable data from citizens with non-professional backgrounds using the protocol designed in the project. We also show a strong demand for scientific information from Mayotte’s inhabitants, associated with a robust trust in science and scientists, despite the circulation of alternative explanations for the seismicity among the population. Based on these results, our citizen science project could be positively received by Mayotte’s inhabitants, if advertised adequately. Finally, we discuss the value of these results for disaster risk reduction in vulnerable territories.

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18

Kiszka, Jeremy, Peter J. Ersts, and Vincent Ridoux. "Cetacean diversity around the Mozambique Channel island of Mayotte (Comoros archipelago)." J. Cetacean Res. Manage. 9, no. 2 (February 22, 2023): 105–9. http://dx.doi.org/10.47536/jcrm.v9i2.676.

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The Indian Ocean was designated as a whale sanctuary in 1979. While cetacean research has been conducted throughout the sanctuary, few studies have been conducted to assess the diversity, distribution and abundance of cetaceans inhabiting the waters surrounding the islands in the northern Mozambique Channel. In order to contribute to management and conservation efforts in this area, a series of small boatbased surveys were undertaken around the island of Mayotte from July 2004 to August 2005 to assess the diversity of cetaceans in the lagoon and surrounding waters, i.e. external barrier reef slope, insular slope (200-1,000m) and oceanic (>1,000m) waters. During this period, more than 284 hours were spent at sea on-effort and 17 cetacean species were recorded around Mayotte (n=286 sightings). One mysticete (1 Balaenopterid) and sixteen odontocetes (1 Kogid, 1 Physeterid, 13 Delphinids and 2 Ziphiids) were observed: spinner dolphin, n=118; pantropical spotted dolphin, n=61; Indo-Pacific bottlenose dolphin, n=44; humpback whale, n=37; melon-headed whale, n=5; Blainville’s beaked whale, n=4; Indo-Pacific humpback dolphin, n=4; common bottlenose dolphin, n=2; Risso’s dolphin, n=2; false killer whale, n=2; dwarf sperm whale, n=2; sperm whale, n=1; pygmy killer whale, n=1; short-finned pilot whale, n=1; Fraser’s dolphin, n=1; and Longman’s beaked whale, n=1. In addition to these 17 species recorded during dedicated surveys, two other cetacean species were observed opportunistically and subsequently identified as the Ginkgo-toothed beaked whale and the blue whale. The relatively large diversity of cetaceans around Mayotte is attributed to the wide range of marine habitats, such as coastal, reef-associated and oceanic, within close proximity to one another.

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19

Ermilov, Sergey G., and Nathalie J. Mary. "To the knowledge of oribatid mites (Acari, Oribatida) of the Comoro lslands." Systematic and Applied Acarology 24, no. 4 (April 26, 2019): 624. http://dx.doi.org/10.11158/saa.24.4.8.

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The present study is based on oribatid mite material collected from Mayotte island (Сomoro Islands, Ethiopian region) in 2011–2016. A new species of the genus Uracrobates (Oribatida, Mochlozetidae) is described; Uracrobates (Uracrobates) mayottensis sp. nov. differs from all species of the nominative subgenus by having a rounded rostrum (versus bidentate or pointed). An updated generic diagnosis and an identification key to the known subgenera and species of Uracrobates are presented. A list of all oribatid mite taxa of the Comoro Islands, including 41 species, 30 genera and 19 families, is provided. Thе genus Phauloppia and the species Edwardzetes novazealandicus are recorded in the Ethiopian region for the first time.

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20

Gomard, Yann, Steven M. Goodman, Voahangy Soarimalala, Magali Turpin, Guenaëlle Lenclume, Marion Ah-Vane, Christopher D. Golden, and Pablo Tortosa. "Co-Radiation of Leptospira and Tenrecidae (Afrotheria) on Madagascar." Tropical Medicine and Infectious Disease 7, no. 8 (August 18, 2022): 193. http://dx.doi.org/10.3390/tropicalmed7080193.

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Leptospirosis is a bacterial zoonosis caused by pathogenic Leptospira that are maintained in the kidney lumen of infected animals acting as reservoirs and contaminating the environment via infected urine. The investigation of leptospirosis through a One Health framework has been stimulated by notable genetic diversity of pathogenic Leptospira combined with a high infection prevalence in certain animal reservoirs. Studies of Madagascar’s native mammal fauna have revealed a diversity of Leptospira with high levels of host-specificity. Native rodents, tenrecids, and bats shelter several distinct lineages and species of Leptospira, some of which have also been detected in acute human cases. Specifically, L. mayottensis, first discovered in humans on Mayotte, an island neighboring Madagascar, was subsequently identified in a few species of tenrecids on the latter island, which comprise an endemic family of small mammals. Distinct L. mayottensis lineages were identified in shrew tenrecs (Microgale cowani and Nesogale dobsoni) on Madagascar, and later in an introduced population of spiny tenrecs (Tenrec ecaudatus) on Mayotte. These findings suggest that L. mayottensis (i) has co-radiated with tenrecids on Madagascar, and (ii) has recently emerged in human populations on Mayotte following the introduction of T. ecaudatus from Madagascar. Hitherto, L. mayottensis has not been detected in spiny tenrecs on Madagascar. In the present study, we broaden the investigation of Malagasy tenrecids and test the emergence of L. mayottensis in humans as a result of the introduction of T. ecaudatus on Mayotte. We screened by PCR 55 tenrecid samples from Madagascar, including kidney tissues from 24 individual T. ecaudatus. We describe the presence of L. mayottensis in Malagasy T. ecaudatus in agreement with the aforementioned hypothesis, as well as in M. thomasi, a tenrecid species that has not been explored thus far for Leptospira carriage.

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21

Benoist, Raphaël, Philippe Walker, Karine Allain-Baco, and Régis Aubry. "Palliative Care Needs Assessment in the Population Living in Mayotte: SPMAYOTTE, a Qualitative Study Conducted with 62 Patients, Caregivers and Healthcare Professionals." International Journal of Environmental Research and Public Health 19, no. 6 (March 16, 2022): 3540. http://dx.doi.org/10.3390/ijerph19063540.

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Background/Aim: Mayotte is a French island in the Indian Ocean. There is no palliative care structure in this territory. The island and its population have specific characteristics: insularity, poverty, coexistence of modern and traditional medicine, importance of religion (Islam) and the presence of many foreigners without health insurance. The aim of this study is to determine the palliative care needs of the Mayotte population and propose the establishment of an appropriate service. Methods: A qualitative study was conducted in Mayotte using interviews with patients and their caregivers, and focus groups were conducted with healthcare professionals involved in their care. Patients requiring palliative care were identified and recruited from the hospital or the patient’s home by healthcare professionals. Results: A total of 62 people participated in the study between May and June 2019. The needs expressed were analysed and then grouped into categories: access to medical care (especially at home), management of physical symptoms (analgesia) and psychological symptoms, organisation of care (coordination between healthcare professionals) and training of healthcare professionals (pain management, palliative care, interculturality and translation), taking into account cultural and religious aspects. Regarding the foreign population, the categories were: improving access to healthcare, access to the social protection system and daily living conditions (transport, food and accommodation). Conclusions: The specific needs of the population, assessed through the study, have led to an original proposal, which differs from the usual structures of palliative care in France.

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22

Longépée, Esméralda, Anliati Ahmed Abdallah, Matthieu Jeanson, and Claire Golléty. "Local Ecological Knowledge on Mangroves in Mayotte Island (Indian Ocean) and Influencing Factors." Forests 12, no. 1 (January 1, 2021): 53. http://dx.doi.org/10.3390/f12010053.

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The majority of studies on local ecological knowledge (LEK) relate to communities or groups relying on ecosystem(s) for their livelihood. In our case study, Mayotte Island, a French overseas department, very few people rely on mangrove ecosystem for natural resources but most of them are attached to it because of leisure activities and beliefs. The questions on mangrove LEK generally deal with a single aspect of ecological knowledge of surveyed people and is mixed with other information such as harvesting practices, anthropogenic impacts, and management issues. The aim of our study is to better understand the level of ecological knowledge of surveyed inhabitants of Mayotte and to assess whether factors linked to the profile of respondents have an influence on it. For this purpose, we carried out two main survey campaigns in three villages fringing two stable mangroves of Mayotte: the first one consisted of qualitative interviews and the second one, questionnaires lending quantitative results. Cross tabulations and Chi square tests of independence were carried out to determine the link between LEK and influencing factors. Results show that some LEK implying localized observation, such as the identification of mangrove trees and the knowledge of the coastal protection role of the mangrove, are well shared by surveyed people whereas others, such as the number and the name of mangrove tree species, are poorly known. The results also highlight the difficulty of questions implying observation at the landscape level and interpretation of observation. All the influencing factors selected have a significant influence on, at least, one LEK variable. The results highlight differences in LEK of villages bordering two nearby mangroves calling for a local management of these systems.

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23

Saintmont, Fabrice, Guillaume Cazals, Claudia Bich, and Sebastien Dutertre. "Proteomic Analysis of the Predatory Venom of Conus striatus Reveals Novel and Population-Specific κA-Conotoxin SIVC." Toxins 14, no. 11 (November 17, 2022): 799. http://dx.doi.org/10.3390/toxins14110799.

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Animal venoms are a rich source of pharmacological compounds with ecological and evolutionary significance, as well as with therapeutic and biotechnological potentials. Among the most promising venomous animals, cone snails produce potent neurotoxic venom to facilitate prey capture and defend against aggressors. Conus striatus, one of the largest piscivorous species, is widely distributed, from east African coasts to remote Polynesian Islands. In this study, we investigated potential intraspecific differences in venom composition between distinct geographical populations from Mayotte Island (Indian Ocean) and Australia (Pacific Ocean). Significant variations were noted among the most abundant components, namely the κA-conotoxins, which contain three disulfide bridges and complex glycosylations. The amino acid sequence of a novel κA-conotoxin SIVC, including its N-terminal acetylated variant, was deciphered using tandem mass spectrometry (MS/MS). In addition, the glycosylation pattern was found to be consisting of two HexNAc and four Hex for the Mayotte population, which diverge from the previously characterized two HexNAc and three Hex combinations for this species, collected elsewhere. Whereas the biological and ecological roles of these modifications remain to be investigated, population-specific glycosylation patterns provide, for the first time, a new level of intraspecific variations in cone snail venoms.

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POUPIN, JOSEPH, and JEAN-MARIE BOUCHARD. "A new dwarf sentinel crab from Mayotte Island, western Indian Ocean (Decapoda: Brachyura: Macrophthalmidae)." Zootaxa 2501, no. 1 (June 10, 2010): 61. http://dx.doi.org/10.11646/zootaxa.2501.1.5.

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A new sentinel crab of the genus Macrophthalmus is described from Mayotte Island, western Indian Ocean. The new species is remarkable by its very small size, with a carapace width not longer than 5.5 mm for the largest ovigerous females. It is closely related to Macrophthalmus (Chaenostoma) boscii Audouin, 1826.Affinities of these two species are discussed.

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Nezhentsev, I. V., and L. V. Ponomarenko. "Island of Mayotte on its way to the international community." Vestnik RUDN. International Relations 17, no. 1 (2017): 175–89. http://dx.doi.org/10.22363/2313-0660-2017-17-1-175-189.

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Fourgeaud, Jacques, Audrey Mirand, Justine Demortier, Laure Kamus, Louis Collet, Sophie Olivier, Cécile Henquell, and Christelle Vauloup-Fellous. "Enterovirus meningitis in Mayotte French Comoros Island, March-June 2019." Journal of Clinical Virology 150-151 (June 2022): 105154. http://dx.doi.org/10.1016/j.jcv.2022.105154.

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Epelboin, Loïc, Renaud Blondé, Abdourahim Chamouine, Alexandra Chrisment, Laure Diancourt, Nicolas Villemant, Agnès Atale, et al. "Angiostrongylus cantonensis Infection on Mayotte Island, Indian Ocean, 2007-2012." PLOS Neglected Tropical Diseases 10, no. 5 (May 4, 2016): e0004635. http://dx.doi.org/10.1371/journal.pntd.0004635.

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Filleul, L., T. Lernout, C. Giry, and B. Zumbo. "Dengue virus serotype 3 infections, Mayotte Island, March-June 2010." International Journal of Infectious Diseases 16 (June 2012): e256. http://dx.doi.org/10.1016/j.ijid.2012.05.894.

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Tonnabel, J., I. Tattersall, B. Simmen, and L. Tarnaud. "Decline and demographic changes in the population of the Near Threatened brown lemur Eulemur fulvus on Mayotte." Oryx 45, no. 4 (October 2011): 608–14. http://dx.doi.org/10.1017/s0030605310001341.

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AbstractThe population of the Near Threatened brown lemur Eulemur fulvus on the island of Mayotte was censused in 1974, 1984 and 1999. We carried out a new census in 2008, estimating individual and group densities in the three main habitat types on the island (preserved forest, anthropogenic forest and agricultural areas), and more generally evaluating population trends. Data included sex ratios and the number of young < 1 year-old per female. The census was at the end of the dry season, along 14 transect lines of 0.5 or 1 km length. Counts of groups and individuals were repeated three times between 07.00 and 10.00 and between 15.00 and 18.00. The densities of groups and individuals were calculated using Distance. By 2008 group and individual densities had significantly decreased in preserved forest, and there was also a decrease in group size in all habitat types. The 2008 census also showed that the overall population of E. fulvus on Mayotte has decreased by about half since 1999. We suggest that these changes reflect environmental stress associated with a decrease in available food resources. Urgent action to preserve forest habitat is necessary for the long-term survival of this lemur.

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Frumence, Etienne, David A. Wilkinson, Raphaelle Klitting, Muriel Vincent, Nicolas Mnemosyme, Gilda Grard, Nicolas Traversier, et al. "Dynamics of emergence and genetic diversity of dengue virus in Reunion Island from 2012 to 2022." PLOS Neglected Tropical Diseases 18, no. 5 (May 20, 2024): e0012184. http://dx.doi.org/10.1371/journal.pntd.0012184.

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Background Dengue is a major public health concern in Reunion Island, marked by recurrent epidemics, including successive outbreaks of dengue virus serotypes 1 and 2 (DENV1 and DENV2) with over 70,000 cases confirmed since 2017. Methodology/Principal findings In this study, we used Oxford Nanopore NGS technology for sequencing virologically-confirmed samples and clinical isolates collected between 2012 and 2022 to investigate the molecular epidemiology and evolution of DENV in Reunion Island. Here, we generated and analyzed a total of 499 DENV1, 360 DENV2, and 18 DENV3 sequences. By phylogenetic analysis, we show that different genotypes and variants of DENV have circulated in the past decade that likely originated from Seychelles, Mayotte and Southeast Asia and highly affected areas in Asia and Africa. Conclusions/Significance DENV sequences from Reunion Island exhibit a high genetic diversity which suggests regular introductions of new viral lineages from various Indian Ocean islands. The insights from our phylogenetic analysis may inform local health authorities about the endemicity of DENV variants circulating in Reunion Island and may improve dengue management and surveillance. This work emphasizes the importance of strong local coordination and collaboration to inform public health stakeholders in Reunion Island, neighboring areas, and mainland France.

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Hafsia, Sarah, Marion Haramboure, David Arthur Wilkinson, Thierry Baldet, Luce Yemadje-Menudier, Muriel Vincent, Annelise Tran, Célestine Atyame, and Patrick Mavingui. "Overview of dengue outbreaks in the southwestern Indian Ocean and analysis of factors involved in the shift toward endemicity in Reunion Island: A systematic review." PLOS Neglected Tropical Diseases 16, no. 7 (July 28, 2022): e0010547. http://dx.doi.org/10.1371/journal.pntd.0010547.

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Background Dengue is the world’s most prevalent mosquito-borne viral disease. It is endemic in many tropical and subtropical countries and represents a significant global health burden. The first reports of dengue virus (DENV) circulation in the South West Indian Ocean (SWIO) islands date back to the early 1940s; however, an increase in DENV circulation has been reported in the SWIO in recent years. The aim of this review is to trace the history of DENV in the SWIO islands using available records from the Comoros, Madagascar, Mauritius, Mayotte, Seychelles, and Reunion. We focus in particular on the most extensive data from Reunion Island, highlighting factors that may explain the observed increasing incidence, and the potential shift from one-off outbreaks to endemic dengue transmission. Methods Following the PRISMA guidelines, the literature review focused queried different databases using the keywords “dengue” or “Aedes albopictus” combined with each of the following SWIO islands the Comoros, Madagascar, Mauritius, Mayotte, Seychelles, and Reunion. We also compiled case report data for dengue in Mayotte and Reunion in collaboration with the regional public health agencies in these French territories. References and data were discarded when original sources were not identified. We examined reports of climatic, anthropogenic, and mosquito-related factors that may influence the maintenance of dengue transmission independently of case importation linked to travel. Findings and conclusions The first report of dengue circulation in the SWIO was documented in 1943 in the Comoros. Then not until an outbreak in 1976 to 1977 that affected approximately 80% of the population of the Seychelles. DENV was also reported in 1977 to 1978 in Reunion with an estimate of nearly 30% of the population infected. In the following 40-year period, DENV circulation was qualified as interepidemic with sporadic cases. However, in recent years, the region has experienced uninterrupted DENV transmission at elevated incidence. Since 2017, Reunion witnessed the cocirculation of 3 serotypes (DENV-1, DENV-2 and DENV-3) and an increased number of cases with severe forms and deaths. Reinforced molecular and serological identification of DENV serotypes and genotypes circulating in the SWIO as well as vector control strategies is necessary to protect exposed human populations and limit the spread of dengue.

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MARTIN, JON H., and JEAN-CLAUDE STREITO. "A second species of the enigmatic whitefly genus Stenaleyrodes Takahashi (Sternorrhyncha, Aleyrodidae)." Zootaxa 349, no. 1 (November 10, 2003): 1. http://dx.doi.org/10.11646/zootaxa.349.1.1.

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Stenaleyrodes papillote sp. nov. is described from coconut palms on Mayotte Island and in East Africa. It is only the second known member of this genus, whose systematic position has hitherto been uncertain. With use of both puparial and adult characters, the placement of Stenaleyrodes in the subfamily Aleurodicinae is supported, and the status of the subfamilies Aleurodicinae and Udamoselinae discussed.Stenaleyrodes papillote sp. nov. est décrite sur cocotier de l’Île de Mayotte et d’Afrique de l’Est. C’est seulement la deuxième espèce connue de ce genre, dont la position systématique demeure incertaine. Le statut des deux sous-familles Aleurodicinae and Udamoselinae est discuté. Malgré l’absence de pores composés et de griffes aux pattes du puparium, une observation attentive de S. vinsoni et des pupariums et adultes de la nouvelle espèce plaide pour le maintien du genre Stenaleyrodes dans la sous-famille des Aleurodicinae.

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PIGNAL, MARC, ROXANA YOCKTENG, DAVID J. HEARN, and JEAN-NOËL LABAT. "Adenia barthelatii (Passifloraceae), a new endemic species of Mayotte and its phylogenetic status within the genus Adenia." Phytotaxa 99, no. 1 (May 9, 2013): 40. http://dx.doi.org/10.11646/phytotaxa.99.1.3.

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Morphological characters support the description of a new species of Passifloraceae from Mayotte Island: Adenia barthelatii M. Pignal, Yockteng, Hearn & Labat. Morphological and molecular data suggest that A. barthelatii belongs to the ‘warty-gland’ subclade of Clade V defined by Hearn elsewhere. Since the warty-gland clade is restricted to the Malagasy region we suggest a Malagasy origin of this Maorian species of Adenia.

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Kim, Younjung, Raphaëlle Métras, Laure Dommergues, Chouanibou Youssouffi, Soihibou Combo, Gilles Le Godais, Dirk U. Pfeiffer, et al. "The role of livestock movements in the spread of Rift Valley fever virus in animals and humans in Mayotte, 2018–19." PLOS Neglected Tropical Diseases 15, no. 3 (March 8, 2021): e0009202. http://dx.doi.org/10.1371/journal.pntd.0009202.

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Rift Valley fever (RVF) is a vector-borne viral disease of major animal and public health importance. In 2018–19, it caused an epidemic in both livestock and human populations of the island of Mayotte. Using Bayesian modelling approaches, we assessed the spatio-temporal pattern of RVF virus (RVFV) infection in livestock and human populations across the island, and factors shaping it. First, we assessed if (i) livestock movements, (ii) spatial proximity from communes with infected animals, and (iii) livestock density were associated with the temporal sequence of RVFV introduction into Mayotte communes’ livestock populations. Second, we assessed whether the rate of human infection was associated with (a) spatial proximity from and (b) livestock density of communes with infected animals. Our analyses showed that the temporal sequence of RVFV introduction into communes’ livestock populations was associated with livestock movements and spatial proximity from communes with infected animals, with livestock movements being associated with the best model fit. Moreover, the pattern of human cases was associated with their spatial proximity from communes with infected animals, with the risk of human infection sharply increasing if livestock in the same or close communes were infected. This study highlights the importance of understanding livestock movement networks in informing the design of risk-based RVF surveillance programs.

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Fischbach, Noémi, Anh-Tu Ngo, Philippe Colomban, and Martial Pauly. "Beads excavated from Antsiraka Boira necropolis (Mayotte Island, 12th-13th centuries)." ArchéoSciences, no. 40 (December 30, 2016): 83–102. http://dx.doi.org/10.4000/archeosciences.4774.

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Heslon, Mathilde. "Michael Lambek, Island in the Stream. An Ethnographic History of Mayotte." L'Homme, no. 233 (February 27, 2020): 164–65. http://dx.doi.org/10.4000/lhomme.36906.

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Launay, Robert. "Michael Lambek. Island in the Stream: An Ethnographic History of Mayotte." American Historical Review 125, no. 1 (February 1, 2020): 343–44. http://dx.doi.org/10.1093/ahr/rhz977.

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Renault, P., E. Balleydier, E. D’Ortenzio, M. Bâville, and L. Filleul. "Epidemiology of chikungunya infection on Reunion Island, Mayotte, and neighboring countries." Médecine et Maladies Infectieuses 42, no. 3 (March 2012): 93–101. http://dx.doi.org/10.1016/j.medmal.2011.12.002.

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Geschiere, Peter. "Lambek, Michael, Island in the Stream: An Ethnographic History of Mayotte." Anthropologica 62, no. 2 (December 24, 2020): 443–44. http://dx.doi.org/10.3138/anth-2020-0036.br03.

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Lemoine, Anne, Pierre Briole, Didier Bertil, Agathe Roullé, Michael Foumelis, Isabelle Thinon, Daniel Raucoules, Marcello de Michele, Pierre Valty, and Roser Hoste Colomer. "The 2018–2019 seismo-volcanic crisis east of Mayotte, Comoros islands: seismicity and ground deformation markers of an exceptional submarine eruption." Geophysical Journal International 223, no. 1 (June 3, 2020): 22–44. http://dx.doi.org/10.1093/gji/ggaa273.

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SUMMARY On 10 May 2018, an unprecedented long and intense seismic crisis started offshore, east of Mayotte, the easternmost of the Comoros volcanic islands. The population felt hundreds of events. Over the course of 1 yr, 32 earthquakes with magnitude greater than 5 occurred, including the largest event ever recorded in the Comoros (Mw = 5.9 on 15 May 2018). Earthquakes are clustered in space and time. Unusual intense long lasting monochromatic very long period events were also registered. From early July 2018, Global Navigation Satellite System (GNSS) stations and Interferometric Synthetic Aperture Radar (InSAR) registered a large drift, testimony of a large offshore deflation. We describe the onset and the evolution of a large magmatic event thanks to the analysis of the seismicity from the initiation of the crisis through its first year, compared to the ground deformation observation (GNSS and InSAR) and modelling. We discriminate and characterize the initial fracturing phase, the phase of magma intrusion and dyke propagation from depth to the subsurface, and the eruptive phase that starts on 3 July 2018, around 50 d after the first seismic events. The eruption is not terminated 2 yr after its initiation, with the persistence of an unusual seismicity, whose pattern has been similar since summer 2018, including episodic very low frequency events presenting a harmonic oscillation with a period of ∼16 s. From July 2018, the whole Mayotte Island drifted eastward and downward at a slightly increasing rate until reaching a peak in late 2018. At the apex, the mean deformation rate was 224 mm yr−1 eastward and 186 mm yr−1 downward. During 2019, the deformation smoothly decreased and in January 2020, it was less than 20 per cent of its peak value. A deflation model of a magma reservoir buried in a homogenous half space fits well the data. The modelled reservoir is located 45 ± 5 km east of Mayotte, at a depth of 28 ± 3 km and the inferred magma extraction at the apex was ∼94 m3 s−1. The introduction of a small secondary source located beneath Mayotte Island at the same depth as the main one improves the fit by 20 per cent. While the rate of the main source drops by a factor of 5 during 2019, the rate of the secondary source remains stable. This might be a clue of the occurrence of relaxation at depth that may continue for some time after the end of the eruption. According to our model, the total volume extracted from the deep reservoir was ∼2.65 km3 in January 2020. This is the largest offshore volcanic event ever quantitatively documented. This seismo-volcanic crisis is consistent with the trans-tensional regime along Comoros archipelago.

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Yassin, Amir, Vincent Debat, Héloïse Bastide, Nelly Gidaszewski, Jean R. David, and John E. Pool. "Recurrent specialization on a toxic fruit in an island Drosophila population." Proceedings of the National Academy of Sciences 113, no. 17 (April 4, 2016): 4771–76. http://dx.doi.org/10.1073/pnas.1522559113.

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Recurrent specialization on similar host plants offers a unique opportunity to unravel the evolutionary and genetic mechanisms underlying dietary shifts. Recent studies have focused on ecological races belonging to the same species, but it is hard in many cases to untangle the role of adaptive introgression versus distinct mutations in facilitating recurrent evolution. We discovered on the island of Mayotte a population of the generalist fly Drosophila yakuba that is strictly associated with noni (Morinda citrifolia). This case strongly resembles Drosophila sechellia, a genetically isolated insular relative of D. yakuba whose intensely studied specialization on toxic noni fruits has always been considered a unique event in insect evolution. Experiments revealed that unlike mainland D. yakuba strains, Mayotte flies showed strong olfactory attraction and significant toxin tolerance to noni. Island females strongly discriminated against mainland males, suggesting that dietary adaptation has been accompanied by partial reproductive isolation. Population genomic analysis indicated a recent colonization (∼29 kya), at a time when year-round noni fruits may have presented a predictable resource on the small island, with ongoing migration after colonization. This relatively recent time scale allowed us to search for putatively adaptive loci based on genetic variation. Strong signals of genetic differentiation were found for several detoxification genes, including a major toxin tolerance locus in D. sechellia. Our results suggest that recurrent evolution on a toxic resource can involve similar historical events and common genetic bases, and they establish an important genetic system for the study of early stages of ecological specialization and speciation.

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ERTZ, DAMIEN. "New insights into the systematics and phylogeny of the genus Fouragea (Arthoniales, Opegraphaceae)." Phytotaxa 472, no. 2 (November 23, 2020): 184–92. http://dx.doi.org/10.11646/phytotaxa.472.2.8.

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The foliicolous lichen-forming fungus Opegrapha vegae was collected on the French island of Mayotte (Comoros archipelago). Phylogenetic analyses using nuLSU and RPB2 sequences place this species in the genus Fouragea (Opegraphaceae). Opegrapha alba, O. heliabravoa, O. tuxtlensis and O. vegae are newly combined in the genus Fouragea because of their foliicolous habit, their general morphology and their ascomata and ascospores types. Fouragea vegae is reported as new for the Comoros archipelago.

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Flessa, Anna, Dimitris Fragkiadakis, Eleftheria Zisarou, and Panagiotis Fragkos. "Decarbonizing the Energy System of Non-Interconnected Islands: The Case of Mayotte." Energies 16, no. 6 (March 22, 2023): 2931. http://dx.doi.org/10.3390/en16062931.

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Islands face unique challenges on their journey towards achieving carbon neutrality by the mid-century, due to the lack of energy interconnections, limited domestic energy resources, extensive fossil fuel dependence, and high load variance requiring new technologies to balance demand and supply. At the same time, these challenges can be turned into a great opportunity for economic growth and the creation of jobs with non-interconnected islands having the potential to become transition frontrunners by adopting sustainable technologies and implementing innovative solutions. This paper uses an advanced energy–economy system modeling tool (IntE3-ISL) accompanied by plausible decarbonization scenarios to assess the medium- and long-term impacts of energy transition on the energy system, emissions, economy, and society of the island of Mayotte. The model-based analysis adequately captures the specificities of Mayotte and examines the complexity, challenges, and opportunities to decarbonize the island’s non-interconnected energy system. The energy transition necessitates the adoption of ambitious climate policy measures and the extensive deployment of low- and zero-carbon technologies both in the demand and supply sides of the energy system, accounting for the unique characteristics of each individual sector, while sectoral integration is also important. To reduce emissions from hard-to-abate sectors, such as transportation and industry, the measures and technologies can include the installation and use of highly efficient equipment, the electrification of end uses (such as the widespread adoption of electric vehicles), the large roll-out of renewable energy sources, as well as the production and use of green hydrogen and synthetic fuels.

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DESVARS, A., E. CARDINALE, and A. MICHAULT. "Animal leptospirosis in small tropical areas." Epidemiology and Infection 139, no. 2 (September 28, 2010): 167–88. http://dx.doi.org/10.1017/s0950268810002074.

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SUMMARYLeptospirosis is the most widespread zoonosis in the world. Humans become infected through contact with the urine of carrier animals, directly or via contaminated environments. This review reports available data on animal leptospirosis in ten tropical islands: Barbados, Martinique, Guadeloupe, Grenada, Trinidad, New Caledonia, Hawaii, French Polynesia, La Réunion and Mayotte. Leptospirosis is endemic in these insular wild and domestic fauna. Each island presents a specific panel of circulating serovars, closely linked with animal and environmental biodiversity, making it epidemiologically different from the mainland. Rats, mongooses and mice are proven major renal carriers of leptospires in these areas but dogs also constitute a significant potential reservoir. In some islands seroprevalence of leptospirosis in animals evolves with time, inducing changes in the epidemiology of the human disease. Consequently more investigations on animal leptospirosis in these ecosystems and use of molecular tools are essential for prevention and control of the human disease.

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Gargani, Julien. "Relative Sea Level and Coastal Vertical Movements in Relation to Volcano-Tectonic Processes at Mayotte Island, Indian Ocean." GeoHazards 5, no. 2 (April 12, 2024): 329–49. http://dx.doi.org/10.3390/geohazards5020017.

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During the last 10 kyr, significant subsidence and uplift occurred on Mayotte Island in the Comoros archipelago (Indian Ocean), but the role of volcanic processes in Holocene vertical movements has been neglected in the research so far. Here, we show that an abrupt subsidence of 6–10 m occurred between 9.4 and 10 kyr ago, followed by an uplift of the same amplitude at a rate of 9 mm/yr from 8.1 to 7 kyr ago. A comparison of the relative sea level of Mayotte and a reference sea level curve for the global ocean has been conducted using a modeling approach. This shows that an increasing and decreasing pressure at depth, equivalent to the process caused by a deep magma reservoir (50–70 km), was responsible for ~6–10 m subsidence and 6–10 m uplift, whereas loading by new volcanic edifices caused subsidence during the last few thousand years. Surface movements and deep pressure variations may be caused by pulses from the deep mantle, related to superplume activity, but uncertainties and unknowns about these phenomena are still present and further studies are needed. A better understanding of the volcano-tectonic cycle may improve assessments of volcanic hazards.

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Hoarau, J., C. Boyer, K. Vital, T. Chesneau, C. Vernière, M. Roux-Cuvelier, O. Pruvost, et al. "First Report of Xanthomonas citri pv. citri-A Causing Asiatic Citrus Canker in Mayotte." Plant Disease 97, no. 7 (July 2013): 989. http://dx.doi.org/10.1094/pdis-01-13-0128-pdn.

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Asiatic citrus canker, caused by Xanthomonas citri pv. citri, is a bacterial disease of major economic importance in tropical and subtropical citrus-producing areas. X. citri pv. citri pathotype A can cause severe infection in a wide range of citrus species and induces erumpent, callus-like lesions with water-soaked margins evolving to corky cankers and leading to premature fruit and leaf drop and twig dieback on susceptible/very susceptible cultivars. A chlorotic halo is typically visible around canker lesions on leaves and young fruit, but not on mature fruit and twigs. This quarantine organism can strongly impact both national and international citrus markets. Long distance dispersal is mainly through infected propagative material. Asiatic citrus canker occurs on most islands in the Southwest Indian Ocean region (Comoros, Mauritius, Reunion, Rodrigues, and Seychelles islands), but was not yet reported in Mayotte (EPPO-PQR available at http://www.eppo.int ). In May 2012, typical canker-like symptoms were observed on sweet orange (Citrus sinensis) groves on Mtsamboro islet and soon after on the main island of Mayotte, mostly on sweet oranges, but also on Tahiti limes (C. latifolia) and mandarins (C. reticulata). Eighty-one Xanthomonas-like strains were isolated using KC semi-selective medium (4) from disease samples collected from both commercial groves and nurseries on different Citrus species located all over the island. Sixteen Xanthomonas-like isolates were tentatively identified as X. citri pv. citri based on a specific PCR assay with 4/7 primers (3). All strains but the negative control, sterile water, produced an amplicon of the expected size similar to X. citri pv. citri strain IAPAR 306 used as positive control. Multilocus sequence analysis targeting six housekeeping genes (atpD, dnaK, efp, gltA, gyrB, and lepA) (1,2) fully identified three strains from Mayotte (LJ225-3, LJ228-1, and LJ229-11) as X. citri pv. citri (and not other xanthomonad pathovars pathogenic to citrus or host range-restricted pathotypes of pathovar citri), and more specifically as sequence type ST2 composed of pathotype A strains of X. citri pv. citri (2) (including all strains from the Southwest Indian Ocean region). Eight strains were inoculated by a detached leaf assay (2) to Mexican lime SRA 140 (C. aurantifolia), Tahiti lime SRA 58, sweet orange cv. Washington Navel, alemow SRA 779 (C. macrophylla), and tangor cv. Ortanique (C. reticulata × C. sinensis) and developed typical erumpent, callus-like tissue at wound sites for all Citrus species, fulfilling Koch's postulates. Xanthomonas-like yellow colonies were reisolated from symptoms produced by the eight strains inoculated on Mexican lime. Boiled bacterial suspensions were assayed by PCR with 4/7 primers (3) and produced the expected 468-bp amplicon in contrast with the negative control (sterile water). No lesions developed on the negative control consisting of inoculations by 10 mM tris buffer (pH 7.2). Citrus canker-free nurseries and grove sanitation should be implemented for decreasing the prevalence of Asiatic canker in this island territory. References: (1) N. F. Almeida et al. Phytopathology 100:208, 2010. (2) L. Bui Thi Ngoc et al. Int. J. Syst. Evol. Microbiol. 60:515, 2010. (3) J. S. Hartung et al. Phytopathology 86:95, 1996. (4) O. Pruvost et al. J. Appl. Microbiol. 99:803, 2005.

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Houlbrèque, F., B. Delesalle, J. Blanchot, Y. Montel, and C. Ferrier-Pagès. "Picoplankton removal by the coral reef community of La PrÈvoyante, Mayotte Island." Aquatic Microbial Ecology 44 (August 16, 2006): 59–70. http://dx.doi.org/10.3354/ame044059.

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Ballorain, K., J. Bourjea, S. Ciccione, A. Kato, N. Hanuise, M. Enstipp, S. Fossette, and JY Georges. "Seasonal diving behaviour and feeding rhythms of green turtles at Mayotte Island." Marine Ecology Progress Series 483 (May 30, 2013): 289–302. http://dx.doi.org/10.3354/meps10301.

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Kresse, Kai. "Island in the Stream: An Ethnographic History of Mayotte by Michael Lambek." Anthropological Quarterly 94, no. 1 (2021): 153–56. http://dx.doi.org/10.1353/anq.2021.0017.

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Delné, Claudy. "Island in the Stream: An Ethnographic History of Mayotte by Michael Lambek." French Review 94, no. 1 (2020): 239. http://dx.doi.org/10.1353/tfr.2020.0084.

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