Patricia Zarate

Patricia Zarate
Instituto de Fomento Pesquero (IFOP) · Oceanography and Environment

PhD

About

43
Publications
35,513
Reads
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898
Citations
Citations since 2017
21 Research Items
592 Citations
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Introduction
I am an expert on sea turtles, sharks and large pelagic animals. My field of research has involved population dynamics and applied ecology for marine ecosystem conservation and fisheries management. I have focused my research on the study of the reproductive biology, ecological role and connectivity of highly migratory organisms by the use of stable isotopes, genetics and telemetry, among others.
Additional affiliations
August 2008 - present
University of Florida
Position
  • Researcher and Adjunct lecturer
August 2008 - January 2015
Charles Darwin Foundation
Position
  • Scientific collaborator
July 2000 - July 2008
Charles Darwin Foundation
Position
  • Leader Sea Turtle Project

Publications

Publications (43)
Article
Full-text available
Species distribution models have been widely used in both terrestrial and marine systems, and applications have included invasive species management, evaluating potential effects of climate change, and conservation. Generally, only a single type of data can be accommodated within the model structures used, which may lead to higher uncertainty in th...
Article
Full-text available
Understanding the link between seamounts and large pelagic species (LPS) may provide important insights for the conservation of these species in open water ecosystems. The seamounts along the Cocos Ridge in the Eastern Tropical Pacific (ETP) ocean are thought to be ecologically important aggregation sites for LPS when moving between Cocos Island (C...
Technical Report
Full-text available
In July 2020, the Conservation Planning Specialist Group (CPSG) of the International Union for Conservation of Nature (IUCN) Species Survival Commission (SSC) was enlisted by the international non-profit sea turtle conservation organization, Upwell, to design and facilitate a two-step decision making process to inform conservation efforts for the C...
Article
Full-text available
Trophic position and niche width are fundamental components of a species’ ecology, reflecting resource use, and influencing key demographic parameters such as somatic growth, maturation, and survival. Concepts about a species’ trophic niche space have important implications for local management and habitat protection, and can shed light about resil...
Article
Patterns of genetic structure in highly mobile marine vertebrates may be accompanied by phenotypic variation. Most studies in marine turtles focused on population genetic structure have been performed at rookeries. We studied whether genetic and morphological variation of the endangered green turtle (Chelonia mydas) is consistent geographically, fo...
Article
Full-text available
The Eastern Pacific leatherback turtle population (Dermochelys coriacea) has declined precipitously in recent years. One of the major causes is bycatch from coastal and pelagic fisheries. Fisheries observations are often underutilized, despite strong potential for this data to affect policy. In this study, we created a spatiotemporal species distri...
Preprint
Full-text available
Understanding the link between seamounts and large pelagic species (LPS) is critical for guiding management and conservation efforts in open water ecosystems. The seamounts along the Cocos Ridge in the Eastern Tropical Pacific (ETP) are thought to play a critical role for LPS moving between Cocos Island (Costa Rica) and Galapagos Islands (Ecuador)....
Technical Report
Full-text available
Five turtle species from seven regional management units (RMUs) inhabit the waters of 12 different countries in the East Pacific (EP) Ocean region. This Regional Overview section provides a brief summary of each RMU by species and is followed by detailed information in chapters from 10 (83.3%) of the countries found in the EP, with Canada and Guate...
Article
Full-text available
• The porbeagle shark Lamna nasus is a large highly migratory shark distributed in cold and temperate marine waters of the North Atlantic and Southern Hemisphere (SH). According to the International Union for Conservation of Nature, the porbeagle is assessed globally as Vulnerable and regionally as Critically Endangered in the North Atlantic and th...
Article
Effective ocean management and the conservation of highly migratory species depend on resolving the overlap between animal movements and distributions, and fishing effort. However, this information is lacking at a global scale. Here we show, using a big-data approach that combines satellite-tracked movements of pelagic sharks and global fishing fle...
Article
Full-text available
Failure to improve the conservation status of endangered species is often related to inadequate allocation of conservation resources to highest priority issues. Eastern Pacific (EP) leatherbacks are perhaps the most endangered sea turtle population in the world, and continue on a path to regional extinction. To provide coherent, regional conservati...
Article
Full-text available
The green turtle (Chelonia mydas) is a globally distributed marine species whose evolutionary history has been molded by geological events and oceanographic and climate changes. Divergence between Atlantic and Pacific clades has been associated with the uplift of the Panama Isthmus, and inside the Pacific region, a biogeographic barrier located wes...
Article
Full-text available
Effective ocean management and conservation of highly migratory species depends on resolving overlap between animal movements and distributions and fishing effort. Yet, this information is lacking at a global scale. Here we show, using a big-data approach combining satellite-tracked movements of pelagic sharks and global fishing fleets, that 24% of...
Article
Rationale: Stable isotopes of carbon and nitrogen have proved to be valuable tools for researchers working across the different subfields of ecology. However, the chemical pre-treatment of samples prior to analytical determination of stable isotope ratios can influence the results, and therefore conclusions regarding the ecology of the taxon or sy...
Article
Full-text available
The feeding of the escolar fishes Ruvettus pretiosus and Lepidocybium flavobrunneum has not been reported yet for southeastern Pacific waters. The main goal of this work was to study the trophic relationships using stomach contents and stable isotopes, δ15N and δ13C, based on mixing models. Results showed that both fish had differences in the impor...
Article
Full-text available
The blue shark (Prionace glauca) and the shortfin mako shark (Isurus oxyrinchus) are two large and highly migratory sharks distributed in most oceans. Although they are often caught in the south Pacific Ocean long-line fisheries, their trophic ecology is poorly understood. Stable isotopes with Bayesian mixing and dependence concentration models wer...
Conference Paper
Full-text available
This collaborative study of the Chilean swordfish fishery was carried out by NIWA and the Instituto de Fomento Pesquero (IFOP) as part of the southern hemisphere porbeagle stock status assessment. Objectives were, to explore the information available for all shark species, and potentially provide porbeagle population indicators and biological infor...
Article
Full-text available
Growth rates can be used as an indicator of overall turtle population health and provide a baseline against which to compare the quality of, or changes in, the conditions in foraging habitats. Previous studies of Green Turtles (Chelonia mydas) in the waters of the Galápagos Archipelago in the late 1970s revealed some of the slowest growth rates eve...
Article
Full-text available
Climate, behavior, ecology, and oceanography shape patterns of biodiversity in marine faunas in the absence of obvious geographic barriers. Marine turtles are an example of highly migratory creatures with deep evolutionary lineages and complex life histories that span both terrestrial and marine environments. Previous studies have focused on the de...
Article
Full-text available
The interactions of numerous abiotic and biotic factors experienced by sea turtle embryos during incubation affect their survival. In this study we determined the hatching and emergence success of green turtles Chelonia mydas from nests on 4 beaches on the Galápagos Islands, one of the most important rookeries for green turtles in the eastern Pacif...
Article
Full-text available
A set of nuclear single nucleotide polymorphisms (SNPs) and microsatellite markers was used to detect genetic stock structure among 5 Pacific green turtle Chelonia mydas nesting populations. We sampled populations in the Galapagos Islands, Ecuador (n = 57), Colola, Mexico (n = 75), French Frigate Shoals, Hawaii (n = 141), Yap, Micronesia (n = 73),...
Article
Full-text available
A set of nuclear single nucleotide polymorphisms (SNPs) and microsatellite markers was used to detect genetic stock structure among 5 Pacific green turtle Chelonia mydas nesting populations. We sampled populations in the Galapagos Islands, Ecuador (n = 57), Colola, Mexico (n = 75), French Frigate Shoals, Hawaii (n = 141), Yap, Micronesia (n = 73),...
Chapter
Full-text available
Islands are oases of marine life and terrestrial biodiversity, and their isolation has resulted in unique flora and plant life with a more limited number of anthropogenic threats than found in mainland areas. Thus, it should be no surprise that sea turtles are attracted to these characteristics of marine areas around islands. The green turtle is th...
Article
Feeding ecology of the green sea turtle (Chelonia mydas) in the Galapagos Islands—CORRIGENDUM - Volume 91 Issue 8 - J. Carrión–Cortez, P. Zárate, J.A. Seminoff
Article
Full-text available
The Galapagos Islands are among the most important nesting areas for the green sea turtle, Chelonia mydas, in the eastern Pacific Ocean. In addition, the coastal waters of this oceanic archipelago host many important feeding areas for this species, although little is known about green turtle feeding ecology at these sites. The goal of this study wa...
Conference Paper
Full-text available
La mayoría de las poblaciones de tortugas marinas tienen historias naturales que traspasan fronteras y las redes multinacionales han llegado a ser una parte importante de exitosas investigaciones y de estrategias de conservación. La importancia de las redes se incrementa considerablemente al tratar con poblaciones de tortugas marinas poco estudiada...
Article
Full-text available
To examine the stock composition of Hawaiian foraging populations and evaluate cur- rent life-history hypotheses, mtDNA control region sequences from immature and adult green turtles that forage around the Hawaiian Islands were compared to potential source nesting populations across the Pacific. We examined the stock composition of the feeding grou...
Article
Full-text available
Post-nesting movements of 12 green turtles from the Galápagos Islands (Ecuador) were tracked with satellite telemetry during the 2003 and 2005 nesting seasons. To illuminate potential environmental influences on turtle movements we compared tracks with a variety of remotely sensed oceanographic variables including sea surface temperature (SST), SST...
Article
Full-text available
"Over the last two decades there has been a dramatic increase in the application of satellite telemetry to track the movements of threatened and endangered species. Among the taxa that have benefited the most from these efforts are sea turtles. Every few years, adults of most sea turtle species undertake long-distance migrations between nesting sit...
Conference Paper
Full-text available
Land basking in Galapagos green turtles (Chelonia mydas) was first recorded in the 1960’s by buccaneers. Several observations were done during the 1970’s and 1980’s by several researchers who analyzed the possible role of this behavior in avoiding predators, mating and thermoregulation. We present results of a study that carried out between Decembe...
Chapter
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Chapter
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Projects

Projects (3)
Project
Generar conocimiento para aplicar el enfoque ecosistémico en el manejo y conservación de los recursos altamente migratorios y minimizar la pesca incidental en sus pesquerías