Overview
I am a PhD researcher working on Mediterranean loggerhead turtles (Caretta caretta) investigating their distribtuion, habitat use, and ecological impact of a changing climate. My broad research interests include marine spatial ecology and investigating anthropogenic stressors. I also enjoy public outreach and building awareness among both children and adults.
I studied Marine Biology at the University of Southampton, which included an exchange year at UNC- Wilmington where I worked in the Ichthyology laboratory investigating the impact of coastal development and beach nourishment on surf zone fish.
Once graduated, in the winters I worked as a marine biology educator and guide in the Maldives. In the summers, I took secondary school and 6th form students to wonderful locations around the world whilst teaching marine biology and working with local conservation organisations. This included teaching Marine Mammal Ecology in British Columbia and Sea Turtle Ecology in Costa Rica and Nicaragua.
After a few years I decided to return to university and undertook the MSc in Marine Mammal Science at the University of St Andrews. I used predictive habitat modelling to identify potential habitat for Chilean dolphins and identified areas of overlap with fishing activities.
Broad research specialisms:
Marine spatial ecology, anthropogenic stressors, marine conservation, climate change, public outreach and awareness.
Qualifications
MSci Marine Biology (Uni. Southampton - 2012)
MSc Marine Mammal Science (Uni. St Andrews - 2015
At present – PhD Candidate (2016 -2019)
Research
Research projects
Project Title: The influence of foraging success on marine turtle migration and breeding and the ecological impact of a changing climate.
Supervisors:
Dr Annette Broderick (University of Exeter)
Dr Jamie Shutler (University of Exeter)
Professor Steve Widdicombe (Plymouth Marine Laboratory)
Dr Wayne Fuller (Near East University Cyprus)
Project Description:
Understanding how migratory species respond to changing climatic conditions is critical for their conservation and management. My research focusses on the spatial ecology of Mediterranean loggerhead turtles (Caretta caretta). I am investigating the disperal of hatchlings from nesting beaches, the habitat use of juveniles, as well as determining what cues females use to migrate and where females migrate to in search of food. The extent of fisheries interactions is explored as well as how dispersal and habitat use change under future climate scenarios.
I use a variety of techniques including; particle drift analysis to determine hatchling dispersal, stable isotope analysis and satellite telemetry of juveniles and nesting females to determine where they migrate and forage, and remotely sensed environmental data to investigate how variations in oceanic conditions influence the spatial ecology of loggerhead turtles throughout their life cycle.
Publications
Key publications | Publications by category | Publications by year
Publications by category
Journal articles
Haywood JC, Fuller WJ, Godley B, Margaritoulis D, Shutler J, Snape RTE, Widdicombe S, Zbinden J, Broderick A (In Press). Spatial ecology of loggerhead turtles: Insights from stable isotope markers and satellite telemetry.
Diversity and Distributions: a journal of conservation biogeography Full text.
Haywood JC, Casale P, Freggi D, Fuller WJ, Godley BJ, Lazar B, Margaritoulis D, Rees AF, Shutler JD, Snape RT, et al (2020). Foraging ecology of Mediterranean juvenile loggerhead turtles: insights from C and N stable isotope ratios.
Marine Biology,
167(3).
Full text.
Haywood J, Fuller W, Godley B, Shutler J, Widdicombe S, Broderick A (2019). Global review and inventory: how stable isotopes are helping us understand ecology and inform conservation of marine turtles.
Marine Ecology Progress Series,
613, 217-245.
Full text.
Publications by year
In Press
Haywood JC, Fuller WJ, Godley B, Margaritoulis D, Shutler J, Snape RTE, Widdicombe S, Zbinden J, Broderick A (In Press). Spatial ecology of loggerhead turtles: Insights from stable isotope markers and satellite telemetry.
Diversity and Distributions: a journal of conservation biogeography Full text.
2020
Haywood JC, Casale P, Freggi D, Fuller WJ, Godley BJ, Lazar B, Margaritoulis D, Rees AF, Shutler JD, Snape RT, et al (2020). Foraging ecology of Mediterranean juvenile loggerhead turtles: insights from C and N stable isotope ratios.
Marine Biology,
167(3).
Full text.
Haywood J (2020). THE SPATIAL ECOLOGY OF MEDITERRANEAN MARINE TURTLES: INSIGHTS FROM STABLE ISOTOPE ANALYSIS, SATELLITE TELEMETRY, AND ENVIRONMENTAL OBSERVATIONS.
Abstract:
THE SPATIAL ECOLOGY OF MEDITERRANEAN MARINE TURTLES: INSIGHTS FROM STABLE ISOTOPE ANALYSIS, SATELLITE TELEMETRY, AND ENVIRONMENTAL OBSERVATIONS
Understanding the spatial and foraging ecology of marine migrants is challenging, due to the vast distances travelled and the numerous habitats occupied within a dynamic seascape. Mediterranean marine turtles migrate thousands of kilometers and face numerous threats, including bycatch, in their marine realm. To help inform targeted conservation, this complex marine ecology must be better understood. This thesis focuses on Mediterranean loggerhead (Caretta caretta) and green turtles (Chelonia mydas). By complementing stable isotope analysis (SIA), satellite telemetry, and environmental observations, this thesis aims to enhance our understanding of the complexities of marine turtle spatial and foraging ecology, as well as determine how future climate conditions may influence their habitat use.
In Chapter 1, I introduce the importance of conserving marine migrants and discuss the current knowledge of marine turtle spatial and foraging ecology as well as threats faced, with particular emphasis on Mediterranean loggerhead and green turtles. By conducting an extensive review in Chapter 2, I demonstrate how SIA has been used to enhance our understanding of marine turtle ecology, as well as help inform conservation initiatives. I also highlight knowledge gaps (for example, bias in the species studied) and provide recommendations for future SIA studies (for example, following standardised protocols), and use this information to inform latter chapters. In Chapter 3, using SIA I highlight the ecological complexity of juvenile Mediterranean loggerhead turtles, demonstrating there are inter- and intra-population variations in ecology, and that region- and habitat-specific fisheries management is required. In Chapter 4, I identify the foraging grounds for two major Mediterranean loggerhead turtle populations, demonstrate foraging site fidelity over decades, show the proportion of females recruiting from each foraging region does not differ across the multi-decadal study, and suggest site-specific management would be beneficial. Finally, in Chapter 5, I show that migratory dive behaviours of loggerhead and green turtles are influenced by changes in environmental conditions (e.g. wave height and temperature) and that the species-specific migratory corridors used may be due to factors such as feeding preference and physiology, rather than species-specific environmental tolerances, suggesting dynamic and species-specific conservation is required. In Chapter 6, I summarise and discuss the findings from this thesis within the wider context. In conclusion, this thesis emphasises the complexities of marine turtle spatial ecology, shows that habitat use will likely differ under future climate scenarios, and suggests targeted and dynamic conservation is required for effective long term conservation.
Abstract.
Full text.
2019
Haywood J, Fuller W, Godley B, Shutler J, Widdicombe S, Broderick A (2019). Global review and inventory: how stable isotopes are helping us understand ecology and inform conservation of marine turtles.
Marine Ecology Progress Series,
613, 217-245.
Full text.
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