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I currently have two experiments running, one on Zeelandia beach on the Windward side of the island, and the second on [...] Our in-water survey of sea turtles and their habitats in St. Together with STENAPA (National Park authority of St Eustatius) and volunteers, and support [...] Based on the monitoring data on nesting turtles that Jessica Berkel and her team at STENAPA are collecting we were able to predict the turtle’s return to the beaches. He also made some really nice video footage while free diving.

For this we used the inter-nesting durations of the first green turtles tracks that were reported for Zeelandia beach, St. Equipped with a turtle box, satellite transmitters, our red [...] During our fieldwork on St. His guest post: “Being a volunteer in a scientific mission is very simple : You just have to listen to the Project Leader, and you have to be available anytime, [...] Sea turtle sex is not determined at the time of fertilization like in humans, it is set by the temperature level during nest incubation.

The signals of the ARGOS satellite are updated hourly and I am very happy to report that this female is swimming very fast in the direction of Nicaragua 1050km in the first 10 [...] I am Fee, the first master student who will monitor the exclusion cages in Lac Bay on Bonaire for three months. My main research questions are: How does turtle grazing affect the productivity of and competition between the native T. stipulacea in Lac Bay, and what [...] 4 sub-adult green turtles that we caught in Lac Bay are now equipped with satellite transmitters to study their movements and use of the seagrass meadows, (see more photos below).

The greens that forage in the shallow Lac Bay area are typically sub-adults.

Recently for some small island rookeries througout the Caribbean researchers reported a shift towards a more female dominated hatchlings/populations as nest temperatures slightly increased in these areas (warmer beaches result in female turtles). [...] Lisa Becking (Wageningen University and IMARES) and I, together with Sea Turtle Conservation Bonaire (STCB) ; Mabel Nava, Sue Willis and Robert van Dam have shown in a recent publication that sea turtles who breed in Bonaire, Caribbean Netherlands, migrate great distances of up to 3500km to reach their foraging grounds across the Caribbean in 10 different countries. My name is Moniek and as an Ecology and Evolution student at the University of Groningen I have been doing fieldwork on Bonaire for my MSc internship.

Most importantly I have been continuing the turtle exclusion experiment in Lac Bay; going out with a kayak and diving gear to measure and/or clean at [...] Grazing is an important driver of ecosystem functioning! This paper is a result of a very nice collaboration with Liesbeth Bakker and other colleagues working on herbivory in other ecosystems.

To work for 3-4 yrs on “Global defaunation and plant invasion: cascading effects on seagrass ecosystem services”.

I received a personal VENI (research) grant today, from the Netherlands Organization for Scientific Research (NWO)!

Simple food web metrics captured these changes; classic community (biodiversity) metrics did not.

Food web metrics are a useful [...] Hello Everyone, Marjolijn has introduced me in her earlier posts; I am Fionne Kiggen and at the moment I am undertaking sea turtle research in St Eustatius for my Masters thesis at Wageningen University. We aimed to collect data to analyse the habitat use and population connectivity of green and hawksbill turtles as part of a larger NWO research program encompassing the 6 Dutch Caribbean Islands.

We selected some of the biggest turtles that forage here, to not [...] Two weeks ago we arrived on Bonaire.

Since then we worked non-stop and we made great progress!

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