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Fuentes, Mariana M. P. B.; Cleguer, Christophe; Liebsch, Nikolai; Bedford, Guy; Amber, David; Hankin, Charlie; McCarthy, Phillip; Shimada, Takahiro; Whap, Terrence; Marsh, Helene D.
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2013 |
Adapting dugong catching techniques to different cultural and environmental settings.
Mar. Mamm. Sci. 29(1): 159-166. 2 figs. Jan. 2013.
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Cleguer, Christophe; Grech, Alana; Garrigue, Claire; Marsh, Helene D.
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2015 |
Spatial mismatch between marine protected areas and dugongs in New Caledonia.
Biological Conservation 184: 154-162. 1 tab. 3 figs. DOI: 10.1016/j.biocon.2015.01.007. Apr. 2015.
–ABSTRACT: Marine protected areas (MPAs) are a powerful tool for conserving marine biodiversity when designed using ecological information and conservation goals and targets. Dugongs (Dugong dugon) were not an explicit target in the design of the network of MPAs in New Caledonia, despite being one of the region's World Heritage values. Our study retrospectively assessed the capacity of the New Caledonia MPA network to protect dugongs from anthropogenic threats. We developed a spatially explicit model of dugong distribution and relative density based on information collected from ?10 years of aerial surveys. We quantified the amount of overlap between areas supporting high densities of dugongs and MPAs. We found that most of the important dugong habitats of New Caledonia had a low coverage of MPAs that provide high levels of restriction on anthropogenic activities. We identified several important dugong habitats along the west and the north-east coast that were not covered by MPAs and should be a priority for future management. The spatial mismatch between MPAs and dugongs was likely caused by weaknesses in the planning process, including the: (1) lack of explicit conservation goals and targets; (2) omission of spatial information on species' distribution; (3) mismatch of spatial scales; (4) cost considerations; and (5) incorrect application of the IUCN protected area categories. We provide guidance on how these shortcomings can be avoided for marine species of conservation concern in New Caledonia and other regions.
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Sobtzick, S.; Cleguer, C.; Hagihara, R. et al
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2017 |
Distribution and abundance of dugong and large marine turtles in Moreton Bay, Hervey Bay and the southern Great Barrier Reef. A report to the Great Barrier Reef Marine Park Authority. James Cook University, Townsville.
Centre for Tropical Water and Aquatic Ecosystem Research (TropWATER) Publication 17/21: 1-95.
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Cleguer, C; Garrigue, C; Marsh, H.
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2020 |
Dugong (Dugong dugon) movements and habitat use in a coral reef lagoon ecosystem.
Endangered Species Res. 43:167-181. https://doi.org/10.3354/esr01061
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Derville, Solène; Cleguer, Christophe; Garrigue, Claire
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2022 |
Ecoregional and temporal dynamics of dugong habitat use in a complex coral reef lagoon ecosystem.
Sci. Repts. 12:552. 4 tabs. 5 figs. + online supplementary material. https://doi.org/10.1038/s41598-021-04412-3 Jan. 11, 2022.
–ABSTRACT: Mobile marine species display complex and nonstationary habitat use patterns that require understanding to design effective management measures. In this study, the spatio-temporal habitat use dynamics of the vulnerable dugong (Dugong dugon) were modelled from 16 satellite-tagged individuals in the coral reef lagoonal ecosystems of New Caledonia, South Pacific. Dugong residence time was calculated along the interpolated tracks (9371 hourly positions) to estimate intensity of use in three contrasting ecoregions, previously identified through hierarchical clustering of lagoon topographic characteristics. Across ecoregions, differences were identified in dugong spatial intensity of use of shallow waters, deeper lagoon waters and the fore-reef shelf outside the barrier reef. Maps of dugong intensity of use were predicted from these ecological relationships and validated with spatial density estimates derived from aerial surveys conducted for population assessment. While high correlation was found between the two datasets, our study extended the spatial patterns of dugong distribution obtained from aerial surveys across the diel cycle, especially in shallow waters preferentially used by dugongs at night/dusk during high tide. This study has important implications for dugong conservation and illustrates the potential benefits of satellite tracking and dynamic habitat use modelling to inform spatial management of elusive and mobile marine mammals.
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Garrigue, C.; Derville, S.; Bonneville, C.; Brisset, M.; Bustamante, P.; Cleguer, C.; Clua, E.E.; Dabin, W.; Fiat, S.; Justine, J.L.; Machful, P.,
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2023 |
Marine mammal strandings recorded in New Caledonia, South West Pacific Ocean, 1877 to 2022.
Pacific Conservation Biology: 30(1).
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Marsh, H., Cleguer, C.,
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2024 |
Interactions between dugong biology and the biophysical determinants of their environment: a review.
Oceanographic Processes of Coral Reefs: 194-209.
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Said, N. E., Cleguer, C., Lavery, P., Hodgson, A. J., Gorham, C., Tyne, J. A., Frouws, A., Strydom, S., Lo, J., Raudino, H. C.
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2025 |
Sparse seagrass meadows are critical dugong habitat: A novel rapid assessment of habitat-wildlife associations using paired drone and in-water surveys.
Ecological Indicators, 171, 113135.
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Bibliography and Index of the Sirenia and Desmostylia 