The Renatura sea turtle conservation program in Congo

Girard, Alexandre; Bréheret, Nathalie

doi:10.21630/mmns.2013.1.09

Cited by 9 publications

(12 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The surveyed coastline of Angola is more than twice the length of the Gabonese coastline. Comparatively, annual nesting numbers reported from the other major olive ridley turtle nesting populations in the Atlantic are much smaller: Brazil 2,606 nests, Suriname 335 nests, French Guiana 1,000–3,300 nests and Republic of the Congo 300–600 nests (Silva et al, 2007; Plot et al, 2012; Girard & Breheret, 2013; NMFS & USFWS, 2014). Globally, Angola appears to be the largest non-arribada population and is larger than some of the arribada populations (e.g.…”

Section: Discussionmentioning

confidence: 99%

Surveys of the Angolan coast uncover the largest olive ridley sea turtle nesting population in the Atlantic and the largest non-arribada population globally

Morais

Tiwari

2022

Oryx

View full text Add to dashboard Cite

Knowledge of the abundance and distribution of species is important for designing and prioritizing conservation and management activities. Despite numerous existing studies on the distribution and status of sea turtles, we still lack knowledge about certain populations, especially in Angola, which is considered to be the southernmost range of nesting sea turtles in the eastern Atlantic. This study provides an overview of the status, size and distribution of the olive ridley sea turtle Lepidochelys olivacea population nesting along the coast of Angola, and its relevance in the context of other olive ridley turtle nesting populations in the Atlantic. Aerial and ground surveys were conducted along 1,410 km of Angolan coastline and daily beach monitoring over 53.9 km of seven permanent study sites at a range of latitudes during 2011–2020. Angola hosts the largest olive ridley turtle nesting population in the Atlantic, and the largest non-arribada population globally. Although the population appeared relatively stable, the pressures from various threats on land (e.g. consumption of turtles and eggs) and at sea (captures in fishing gear) necessitate the development of a comprehensive management plan, improved and strengthened legislation and law enforcement, and a cohesive approach to conserving all sea turtle species in Angola.

show abstract

Section: Discussionmentioning

confidence: 99%

Surveys of the Angolan coast uncover the largest olive ridley sea turtle nesting population in the Atlantic and the largest non-arribada population globally

Morais

Tiwari

2022

Oryx

View full text Add to dashboard Cite

show abstract

“…The benefits of community-based monitoring extend further than simply the means to generate data (Table 2). Community teams on nesting beaches can reduce incidences of nesting females, and nests, being taken both during and after the monitoring period (Smith & Otterstrom, 2009; Garnier et al, 2012; Girard & Breheret, 2013). Reports from the teams in this study indicate that the number of nests disturbed was low, and that a visit to Nosy Lava in the 2012–2013 nesting season (not part of regular monitoring that year) showed that all nests found had been disturbed, probably by fishers digging for eggs while staying on the islands.…”

Section: Discussionmentioning

confidence: 99%

Placing Madagascar's marine turtle populations in a regional context using community-based monitoring

Humber

Godley

Nicolas

et al. 2016

Oryx

View full text Add to dashboard Cite

Madagascar is an important foraging ground for marine turtles in the Western Indian Ocean, yet the status of the country's nesting aggregations remains poorly documented. We assess the current status and trend in nesting throughout Madagascar, including data recorded by a community-based monitoring project in the Barren Isles (western Madagascar). We contextualize the findings in comparison with data from Madagascar's closest neighbouring states. Reports indicate that nesting levels have declined at many coastal sites, with no known recordings since 2000 at > 40 nesting sites. We estimate there are a minimum of 1,200 nests per year in Madagascar, with the largest recorded nesting aggregation (< 1,000 nests per year) found on islands off the west and northern coasts. The majority of nesting aggregations, including those recorded by the community-based monitoring project in the Barren Isles, are relatively small, in the order of < 50 nests per year, yet they are potentially important sources of regional genetic diversity. Nesting on many of the islands (e.g. Tromelin, Europa) around Madagascar has increased over the last 20 years, despite the fact that thousands of turtles probably originating from these sites are taken by fishers in the waters of Madagascar annually. We discuss the importance of protecting small nesting populations, and how community-based monitoring could be an important tool for conserving remote and vulnerable populations and building capacity for natural resource management.

show abstract

“…Guinée équatoriale : L'île de Bioko abrite l'une des plus grandes colonies de reproduction de tortues luths d'Afrique de l'Ouest, et les tortues vertes viennent aussi y pondre en grand nombre ; les tortues olivâtres et les tortues imbriquées y sont également présentes en petit nombre, et il existe d'importantes plages de nidification à Rio Campo dans la partie continentale du pays (Butynski, 1996, Tomás et al 1999, Fortes et al 1998, USFWS 2011 (Rader et al 2006, Tomás et al 2010. (Girard & Breheret 2013). Sur les sites ne faisant pas l'objet d'un suivi ou non surveillés par des patrouilles, la plupart voire la totalité des oeufs et des adultes sont prélevés.…”

Section: Caméléonsunclassified

“…Sur les sites ne faisant pas l'objet d'un suivi ou non surveillés par des patrouilles, la plupart voire la totalité des oeufs et des adultes sont prélevés. Les chaluts, les filets maillants artisanaux et les sennes de plage représentent aussi des menaces, surtout pour les femelles reproductrices (Bal et al 2007) (Girard & Breheret 2013). RDC : Il existe des plages de reproduction le long des 40 km de bande côtière atlantique mais peu de données sont disponibles concernant le nombre de tortues s'y reproduisant.…”

Section: Caméléonsunclassified

Analyse de situation de l'UICN concernant la faune terrestre et d'eau douce en Afrique centrale et de l'Ouest

Grainger¹,

Hibert²,

Vliet³

2015

View full text Add to dashboard Cite

The Renatura sea turtle conservation program in Congo

Cited by 9 publications

References 1 publication

Surveys of the Angolan coast uncover the largest olive ridley sea turtle nesting population in the Atlantic and the largest non-arribada population globally

Surveys of the Angolan coast uncover the largest olive ridley sea turtle nesting population in the Atlantic and the largest non-arribada population globally

Placing Madagascar's marine turtle populations in a regional context using community-based monitoring

Analyse de situation de l'UICN concernant la faune terrestre et d'eau douce en Afrique centrale et de l'Ouest

Contact Info

Product

Resources

About