Gnaraloo Turtle Conservation Program

Last updated
Gnaraloo Turtle Conservation Program (GTCP)
Founded2005
Type Non-governmental organization
Focus Conservation and research
Location
Website gnaraloo.org and GTCP Facebook page
A loggerhead sea turtle returning to sea after nesting in the Gnaraloo Bay Rookery Loggerhead turtle, post-nesting, Gnaraloo Bay.jpg
A loggerhead sea turtle returning to sea after nesting in the Gnaraloo Bay Rookery
Gnaraloo Bay Gnaraloo Bay Rookery.jpg
Gnaraloo Bay
Sampled nest monitored by GTCP field team throughout incubation 111206 Ghost crab predation Gnaraloo Bay Rookery.JPG
Sampled nest monitored by GTCP field team throughout incubation

The Gnaraloo Turtle Conservation Program (GTCP) is an environmental organisation based at the Gnaraloo pastoral station and run by the Gnaraloo Wilderness Foundation, a not-for-profit organisation. The aim of the GTCP is to identify, monitor and protect the nesting beaches of loggerhead sea turtles (Caretta caretta) found at two locations on the Gnaraloo coastline. [1] [2] These two rookeries contribute to the South-East Indian Ocean subpopulation of loggerhead turtles, with other major nesting sites for this sub-population at Dirk Hartog island (within Shark Bay) and Exmouth. [3] This is within the southern boundaries of the Ningaloo Coast marine area, a UNESCO World Heritage Site. [4]

Contents

History

The Western Australian coast is the site of a significant number of rookeries of loggerhead sea turtles ( Caretta caretta ), green sea turtles ( Chelonia mydas ), and hawksbill sea turtles ( Eretmochelys imbricata ), all of which are classified vulnerable to critically endangered on the IUCN Red List of Threatened Species. The nesting sites are particularly numerous for loggerhead sea turtles, whose rookeries range from Shark Bay to Gnaraloo Bay in the south, and Ningaloo Reef to the Cape Range National Park in the north. [3] [5] [6]

In 2005, after purchasing the land at Gnaraloo, the Gnaraloo Station Trust became aware of the threatened population of sea turtles nesting along the coast and recognized the need for their protection and conservation. An on-ground monitoring and scientific research program was established with the help of the Department of Environment and Conservation (DEC) (now DPaW), following a similar protocol to the neighbouring Ningaloo Turtle Program in Exmouth. Full season surveys of sea turtle tracks and nests within the Gnaraloo Bay Rookery (1 November - 28 February) have taken place since 2008. [2]

Yearly, a successful and in depth community engagement program has been undertaken, visiting schools along the Western Australian coast from Carnarvon to Busselton. [3]

In late 2015, the Gnaraloo Wilderness Foundation was created in order to facilitate the environmental conservation efforts of Gnaraloo; it received its not-for-profit incorporated association status in Western Australia on 12 January 2016. [7]

Gnaraloo Feral Animal Control Program

The Gnaraloo Turtle Conservation Program operates in conjunction with the Gnaraloo Feral Animal Control Program, which was implemented in 2009 with the aim of reducing the impact of feral animals, namely the introduced European red fox ( Vulpes vulpes ), as well as feral cats and wild dogs. Since the 2010/2011 season, feral predation has been successfully maintained at 0%, providing complete protection of sea turtle eggs and hatchlings from these feral predators. [1] [8]

Ghost crab predation

The endemic golden ghost crabs (Ocypode convexa) and, to a lesser extent, horned ghost crabs (Ocypode ceratopthalmus) are also significant as some of the main predators of sea turtle eggs and hatchlings in Western Australia. [6] [9] [10] [11] Some methods for protecting the nests against ghost crabs have been proposed for trial in Gnaraloo, including wire or plastic screens placed over the nests. [10]

See also

Related Research Articles

<span class="mw-page-title-main">Sea turtle</span> Reptiles of the superfamily Chelonioidea

Sea turtles, sometimes called marine turtles, are reptiles of the order Testudines and of the suborder Cryptodira. The seven existing species of sea turtles are the flatback, green, hawksbill, leatherback, loggerhead, Kemp's ridley, and olive ridley sea turtles. All of the seven species listed above, except for the flatback, are present in US waters, and are listed as endangered and/or threatened under the Endangered Species Act. The flatback itself exists in the waters of Australia, Papua New Guinea and Indonesia. Sea turtles can be categorized as hard-shelled (cheloniid) or leathery-shelled (dermochelyid). The only dermochelyid species of sea turtle is the leatherback.

<span class="mw-page-title-main">Cheloniidae</span> Family of turtles

Cheloniidae is a family of typically large marine turtles that are characterised by their common traits such as, having a flat streamlined wide and rounded shell and almost paddle-like flippers for their forelimbs. They are the only sea turtles to have stronger front limbs than back limbs. The six species that make up this family are: the green sea turtle, loggerhead sea turtle, olive ridley sea turtle, hawksbill sea turtle, flatback sea turtle and the Kemp's ridley sea turtle.

<span class="mw-page-title-main">Ghost crab</span> Subfamily of crustaceans

Ghost crabs are semiterrestrial crabs of the subfamily Ocypodinae. They are common shore crabs in tropical and subtropical regions throughout the world, inhabiting deep burrows in the intertidal zone. They are generalist scavengers and predators of small animals. The name "ghost crab" derives from their nocturnality and their generally pale coloration. They are also sometimes called sand crabs, though the name refers to various other crabs that do not belong to the subfamily.

<span class="mw-page-title-main">Olive ridley sea turtle</span> One of the most abundant living sea turtle in the world

The olive ridley sea turtle, also known commonly as the Pacific ridley sea turtle, is a species of turtle in the family Cheloniidae. The species is the second-smallest and most abundant of all sea turtles found in the world. L. olivacea is found in warm and tropical waters, primarily in the Pacific and Indian Oceans, but also in the warm waters of the Atlantic Ocean.

<span class="mw-page-title-main">Loggerhead sea turtle</span> Species of marine reptile distributed throughout the world

The loggerhead sea turtle is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The average loggerhead measures around 90 cm (35 in) in carapace length when fully grown. The adult loggerhead sea turtle weighs approximately 135 kg (298 lb), with the largest specimens weighing in at more than 450 kg (1,000 lb). The skin ranges from yellow to brown in color, and the shell is typically reddish brown. No external differences in sex are seen until the turtle becomes an adult, the most obvious difference being the adult males have thicker tails and shorter plastrons than the females.

<span class="mw-page-title-main">Green sea turtle</span> Species of large sea reptile

The green sea turtle, also known as the green turtle, black (sea) turtle or Pacific green turtle, is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans, but it is also found in the Indian Ocean. The common name refers to the usually green fat found beneath its carapace, not to the color of its carapace, which is olive to black.

<span class="mw-page-title-main">Flatback sea turtle</span> Species of turtle

The Australian flatback sea turtle is a species of sea turtle in the family Cheloniidae. The species is endemic to the sandy beaches and shallow coastal waters of the Australian continental shelf. This turtle gets its common name from the fact that its shell has a flattened or lower dome than the other sea turtles. It can be olive green to grey with a cream underside. It averages from 76 to 96 cm in carapace length and can weigh from 70 to 90 kg. The hatchlings, when emerging from nests, are larger than other sea turtle hatchlings when they hatch.

<span class="mw-page-title-main">Gnaraloo</span> Pastoral lease in Western Australia

Gnaraloo is a working pastoral station and wilderness tourism business located in the Gnaraloo Bay in the Shire of Carnarvon, Western Australia. It is adjacent to the Ningaloo Marine Park and 150 km (93 mi) north of Carnarvon. It is famous for its coastline, wildlife and fishing and waves and wind.

<span class="mw-page-title-main">Ningaloo Coast</span> Coral reef in Western Australia

The Ningaloo Coast is a World Heritage Site located in the north west coastal region of Western Australia. The 705,015-hectare (1,742,130-acre) heritage-listed area is located approximately 1,200 kilometres (750 mi) north of Perth, along the East Indian Ocean. The distinctive Ningaloo Reef that fringes the Ningaloo Coast is 260 kilometres (160 mi) long and is Australia's largest fringing coral reef and the only large reef positioned very close to a landmass. The Muiron Islands and Cape Farquhar are within this coastal zone.

<span class="mw-page-title-main">ARCHELON, the Sea Turtle Protection Society of Greece</span>

ARCHELON, the Sea Turtle Protection Society of Greece was founded in 1983. It aims to protect sea turtles and their habitats in Greece through research, public awareness campaigns, restoring habitats, and through its rescue centre, built in 1994.

Gahirmatha Beach is a beach in Kendrapara district of the Indian state of Odisha. The beach separates the Bhitarkanika Mangroves from the Bay of Bengal and is the world's most important nesting beach for olive ridley sea turtles. The beach is part of Gahirmatha Marine Wildlife Sanctuary, which also includes the adjacent portion of the Bay of Bengal.

<span class="mw-page-title-main">Atlantic ghost crab</span> Species of crustacean

The Atlantic ghost crab, Ocypode quadrata, is a species of ghost crab. It is a common species along the Atlantic coast of the United States, where it is the only species of ghost crab; its range of distribution extends from its northernmost reach on beaches in Westport, Massachusetts, south along the coasts of the tropical Western Atlantic Ocean to the beach of Barra do Chui, in Rio Grande do Sul in southern Brazil.

<span class="mw-page-title-main">Zakynthos Marine Park</span>

The National Marine Park of Zakynthos founded in 1999, is a national park located in Laganas bay, in Zakynthos island, Greece. The park, part of the Natura 2000 ecological network, covers an area of 135 square kilometres (52 sq mi) and is the habitat of the loggerhead sea turtle. It is the first national park established for the protection of sea turtles in the Mediterranean.

<span class="mw-page-title-main">Canadian Organization for Tropical Education and Research</span>

The Canadian Organization for Tropical Education and Rainforest Conservation (COTERC) is a registered not-for-profit Canadian-based charity. COTERC was founded in 1991 by Marilyn Cole and Ozzie Teichner, and is based in Pickering, Ontario, Canada. COTERC maintains a close reciprocal relationship in Costa Rica with Caño Palma Biological Station.

<span class="mw-page-title-main">Golden ghost crab</span> Species of crustacean

Ocypode convexa, commonly known as the golden ghost crab, or alternatively the western ghost crab or yellow ghost crab, is a species of ghost crabs endemic to the coast of Western Australia, from Broome to Perth. They are relatively large ghost crabs, with a carapace growing up to 45 mm (1.8 in) long and 52 mm (2.0 in) wide. They are easily recognisable by their golden yellow colouration. Like other ghost crabs they have box-like bodies with unequally sized claws. They also have large eyestalks with the cornea occupying most of the bottom part.

The Bald Head Island Conservancy (BHIC) is a non-profit organization founded November 7, 1983. BHIC's mission is barrier island conservation, preservation and education. It is located in the Smith Island Complex in Brunswick County, North Carolina, which includes Bald Head Island, Middle and Bluff Islands, all of which are bounded by the Cape Fear River and the Atlantic Ocean. BHIC sponsors and facilitates scientific research that benefits coastal communities and provides numerous recreational and educational activities for students, educators, visitors, and residents. In coordination with various organizations, partnerships and collaborations, the Conservancy has led the nation in conservation and research efforts and is uniquely poised to become a leader in Barrier Island Conservation world-wide.

<span class="mw-page-title-main">Gnaraloo Wilderness Foundation</span>

The Gnaraloo Wilderness Foundation (GWF) is a non-profit organization aimed at protecting and preserving the native flora and fauna at Gnaraloo with the mission to Keep Gnaraloo Wild. The goal of the GWF is to maintain these pristine habitats and allow native wildlife to flourish.

<span class="mw-page-title-main">Gnaraloo Feral Animal Control Program</span>

The Gnaraloo Feral Animal Control Program (GFACP) operates in conjunction with the Gnaraloo Turtle Conservation Program (GTCP), a non-governmental organization whose aim is to monitor and protect sea turtle nesting beaches along the coast of Gnaraloo. Since its implementation in 2009, the GFACP has worked to reduce the impact of feral predators on sea turtle nests within these rookeries. Gnaraloo is located at the southern end of the Ningaloo Coast, a World Heritage Site. The Ningaloo Reef and surrounding coastline are home to important wildlife, including vulnerable and endangered sea turtle populations.

<span class="mw-page-title-main">Loggerhead sea turtle policies of the Barack Obama administration (2009–2017)</span>

The loggerhead sea turtle, is protected under the Endangered Species Act (ESA) of 1973. It was originally listed as a threatened species on July 28, 1978. The turtle's status was updated to Vulnerable (VU) on August 23, 2018. The loggerhead turtle is the most prolific species of sea turtle in U.S. coastal waters.

Lily Venizelos is a Greek conservationist.

References

  1. 1 2 Hattingh, K., Hajnoczky, N. and Slade, B. (2014). GTCP Summary Findings 2013/14 (PDF). GTCP.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. 1 2 Gnaraloo.com. "Scientific overview" . Retrieved 10 February 2016.
  3. 1 2 3 Therese A. Conant; Peter H. Dutton; Tomoharu Eguchi; Sheryan P. Epperly; Christina C. Fahy; Matthew H. Godfrey; Sandra L. MacPherson; Earl E. Possardt; Barbara A. Schroeder; Jeffrey A. Seminoff; Melissa L. Snover; Carrie M. Upite; Blair E. Witherington (2009). Loggerhead Sea Turtle (Caretta caretta) 2009 Status Review Under the U.S. Endangered Species Act. Loggerhead Biological Review Team.
  4. DPaW. "Ningaloo Coast Marine Parks" . Retrieved 13 February 2016.
  5. Karen Hattingh; Patrick Becker; Grant Peterson (2009). Gnaraloo Turtle Conservation Program – Final Report 08/09 : Beach Monitoring: Nesting Season 2008/2009 (PDF). Gnaraloo Marine Turtle Research Program, Gnaraloo Station Trust.
  6. 1 2 Sabrina Trocini (2013). Health assessment and hatching success of two Western Australian loggerhead turtle (Caretta caretta) populations (PDF) (PhD). Murdoch University.
  7. Gnaraloo Wilderness Foundation Inc. (3 February 2016). "We are evolving". Facebook . Retrieved 10 February 2016.
  8. Mike Butcher (30 June 2011). Gnaraloo Fox Control Program (PDF). Annual Report on Fox Control at Gnaraloo Station. Animal Pest Management Services. Archived from the original (PDF) on 3 March 2016. Retrieved 10 February 2016.
  9. Karen Hattingh; Matt Boureau; Marie Duffy; Mark Wall (2011). Gnaraloo Turtle Conservation Program – Final Report 10/11: Day monitoring program with Night checks and Crab burrow surveys (PDF). Gnaraloo Marine Turtle Research Program, Gnaraloo Station Trust. Archived from the original (PDF) on 2016-03-04. Retrieved 2016-02-10.
  10. 1 2 Karen Hattingh; Purusha Boelling; Sergio Jacomy; Amy James; Jessica Leonard; John Stuart; Michael Williamson (2010). Gnaraloo Day and Night Monitoring Final Report 2009/2010 (PDF). Gnaraloo Marine Turtle Research Program, Gnaraloo Station Trust. Archived from the original (PDF) on 2016-03-04. Retrieved 2016-02-10.
  11. Karen Hattingh (2010). "Gnaraloo Turtle Conservation Program". Ningaloo Student Research Day 2010 (PDF). Ningaloo Research Coordinating Committee. pp. 15–17. Archived from the original (PDF) on 2013-12-02. Retrieved 2016-02-10.