A5076832290- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Ichthyology and Marine Biology
- Animal Behavior and Reproduction
- Avian ecology and behavior
- Marine animal studies overview
- Bird parasitology and diseases
- Shakespeare, Adaptation, and Literary Criticism
- Concrete Corrosion and Durability
- Corrosion Behavior and Inhibition
- Genetic diversity and population structure
- Metallurgical Processes and Thermodynamics
- Identification and Quantification in Food
- Wildlife Conservation and Criminology Analyses
- Hydrogen embrittlement and corrosion behaviors in metals
- Bat Biology and Ecology Studies
- Evolution and Paleontology Studies
- Theater, Performance, and Music History
- Sustainable Industrial Ecology
- Wildlife Ecology and Conservation
- Nitric Oxide and Endothelin Effects
- Phytoplasmas and Hemiptera pathogens
- Sex and Gender in Healthcare
- Research on scale insects
- Metal-Catalyzed Oxygenation Mechanisms
Aalborg University
2020-2024
Griffith University
2022-2023
University of Massachusetts Amherst
2023
Ashland (United States)
2021-2022
ACT Government
2020
University of Canberra
2010-2020
National Oceanic and Atmospheric Administration
2013-2019
NOAA National Marine Fisheries Service
2013-2019
NOAA National Marine Fisheries Service Southwest Fisheries Science Center
2013-2019
OAI Consulting (United States)
2017-2019
Climate change affects species and ecosystems around the globe [1Root T.L. Price J.T. Hall K.R. Schneider S.H. Rosenzweig C. Pounds J.A. Fingerprints of global warming on wild animals plants.Nature. 2003; 421: 57-60Crossref PubMed Scopus (3505) Google Scholar]. The impacts rising temperature are particularly pertinent in with temperature-dependent sex determination (TSD), where an individual is determined by incubation during embryonic development [2Janzen F.J. reptiles.Proc. Natl. Acad....
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 31:337-382 (2016) - DOI: https://doi.org/10.3354/esr00801 REVIEW Are we working towards global research priorities for management and conservation of sea turtles? A. F. Rees1, J. Alfaro-Shigueto, P. C. R. Barata, K. Bjorndal, B. Bolten, Bourjea, Broderick1, L. M. Campbell, Cardona, Carreras, Casale, S. Ceriani, H....
Delineating spatial boundaries that accurately encompass complex, often cryptic, life histories of highly migratory marine megafauna can be a significant conservation challenge. For example, turtles range across vast ocean basins and coastal areas, thus complicating the evaluation relative impacts multiple overlapping threats creation coherent strategies. To address these challenges, spatially explicit ‘regional management units’ (RMUs) were developed in 2010 for all turtle species,...
Sea turtles are an iconic group of marine megafauna that have been exposed to multiple anthropogenic threats across their different life stages, especially in the past decades. This has resulted population declines, and consequently many sea turtle populations now classified as threatened or endangered globally. Although some worldwide showing early signs recovery, still face fundamental threats. is problematic since important ecological roles. To encourage informed conservation planning...
Abstract Molecular studies of sea turtles have shown that the frequency multiple paternity (MP) varies between species, and rookeries same species. This study uses nuclear microsatellite markers to compare incidence MP in two neighbouring olive ridley on Pacific coast Costa Rica, with contrasting nesting behaviours — ‘arribada’ population at Ostional solitary nesters Playa Hermosa. Using highly polymorphic markers, we tested 13 nests from each location found a significant difference ( P <...
Marine turtles migrate across long distances, exhibit complex life histories, and occupy habitats that are difficult to observe. These factors present substantial challenges understanding fundamental aspects of their biology or assessing human impacts, many which important for the effective conservation these threatened endangered species. The early development application genetic tools made contributions marine turtle population evolutionary biology, such as providing evidence regional...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 543:241-256 (2016) - DOI: https://doi.org/10.3354/meps11521 Spatial and temporal genetic variation among size classes of green turtles (Chelonia mydas) provides information on oceanic dispersal population dynamics Michael P. Jensen1,8,*, Ian Bell2, Colin J. Limpus3, Mark Hamann4, Stephen Ambar5, Terrence...
Abstract Aim To examine the genetic structure and global phylogeography of endangered green sea turtle, Chelonia mydas , in light past climatic events current conservation needs. Location Tropical subtropical beaches around world. Methods We analysed 386 base pairs mitochondrial (mt) DNA control region 4,878 individual nesting turtle samples from 127 rookeries globally. used phylogeographic analysis to assess how demographic history, dispersal barriers gene flow have led distribution mt...
Hawksbill turtle (Eretmochelys imbricata) populations have experienced global decline because of a history intense commercial exploitation for shell and stuffed taxidermied whole animals, harvest eggs meat. Improved understanding genetic diversity phylogeography is needed to aid conservation. In this study, we analyzed the most geographically comprehensive sample hawksbill turtles from Indo-Pacific Ocean, sequencing 766bp mitochondrial control region 13 locations (plus Aldabra, n = 4)...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 21:241-253 (2013) - DOI: https://doi.org/10.3354/esr00521 Defining olive ridley turtle Lepidochelys olivacea management units in Australia and assessing potential impact of mortality ghost nets Michael P. Jensen1,*, Colin J. Limpus2, Scott D. Whiting3,4, Guinea5, Robert I. T. Prince4, Kiki E. M. Dethmers6, Ida Bagus...
More than two decades have passed since the first studies documenting genetic population structure of green turtles (Chelonia mydas) were published. Since then many more followed and characterization turtle rookeries now covers most global distribution species, benefitting conservation this threatened species worldwide. However, important data gaps still exist across a large part western central Pacific Ocean (WCPO). This area is made up hundreds scattered islands atolls Micronesia,...
Climate, behavior, ecology, and oceanography shape patterns of biodiversity in marine faunas the absence obvious geographic barriers. Marine turtles are an example highly migratory creatures with deep evolutionary lineages complex life histories that span both terrestrial environments. Previous studies have focused on isolation (>3 mya) through vicariance; however, little attention has been given to pathways colonization eastern Pacific processes shaped diversity within most recent time. We...
Abstract Prior to 2008 and the discovery of several important hawksbill turtle ( Eretmochelys imbricata ) nesting colonies in EP (Eastern Pacific), species was considered virtually absent from region. Research since that time has yielded new insights into hawksbills, salient among them being use mangrove estuaries for nesting. These recent revelations have raised interest genetic characterization hawksbills , studies which remained lacking date. Between 2014, we collected tissue samples 269...
Abstract Identification of the geographic extent population boundaries, distribution genetic lineages, and amount exchange among breeding groups is needed for effective conservation vulnerable marine migratory species. This particularly true flatback turtle ( Natator depressus ), which only breeds in Australia but has extensive migrations that can include international waters. study investigated phylogeography structure 17 rookeries across their range by sequencing an 810 bp portion...
Globally distributed marine taxa are well suited for investigations of biogeographic impacts on genetic diversity, connectivity, and population demography. The sea turtle genus Lepidochelys includes the wide-ranging abundant olive ridley (L. olivacea), geographically restricted 'Critically Endangered' Kemp's kempii). To investigate their historical biogeography, we analyzed a large dataset mitochondrial DNA (mtDNA) sequences from (n = 943) 287) ridleys, genotyped 15 nuclear microsatellite...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 31:191-201 (2016) - DOI: https://doi.org/10.3354/esr00763 Genetic markers provide insight on origins of immature green turtles Chelonia mydas with biased sex ratios at foraging grounds in Sabah, Malaysia Michael P. Jensen1,3, Nicolas Pilcher2,*, Nancy N. FitzSimmons1,4 1Institute for Applied Ecology, University...
Context Migratory species are known to pose a challenge for conservation because it is essential understand their complex life history in order implement efficient actions. Aims In New Caledonia, large seagrass habitats the Grand Lagon Sud (GLS) home resident green turtles (Chelonia mydas) of unknown origins. To assess stock composition GLS, 164 foraging were sampled genetic analysis ~770 base pairs mitochondrial DNA (mtDNA) control region. Methods Foraging ranging size from 48.0 108.4 cm...
Abstract Fisheries that operate at large spatial scales and with high intensity have the potential to impact highly migratory species, it is important characterize threats specific breeding populations of these species. We used many‐to‐many mixed‐stock analysis ( MSA ) n = 408) microsatellite assignment testing 397) determine source for leatherback turtles Dermochelys coriacea caught as bycatch in U.S. pelagic longline fishery from 2002 2012 western North Atlantic. Within United States, we...
Understanding how ocean currents impact the distribution and connectivity of marine species, provides vital information for effective conservation management migratory animals. Here, we used a combination molecular genetics drift simulations to investigate spatial ecology juvenile green turtle (Chelonia mydas) developmental habitats, assess role in driving dispersal hatchlings. We analyzed mitochondrial (mt)DNA sequenced from 358 turtles, eight areas located throughout Southwest Indian Ocean...
Coastal seagrass habitats in tropical and subtropical regions support aggregations of resident green turtles (Chelonia mydas) from several genetically distinct breeding populations. Migration individuals to their respective dispersed sites provides a complex pattern migratory connectivity among nesting feeding this species. An understanding is important where the persistence populations under threat anthropogenic impacts. The present study uses mitochondrial DNA mixed-stock analyses assess...
Advances in high-throughput sequencing (HTS) technologies coupled with increased interdisciplinary collaboration are rapidly expanding capacity the scope and scale of wildlife genetic studies. While existing HTS methods can be directly applied to address some evolutionary ecological questions, certain research goals necessitate tailoring specific study organisms, such as genotyping same loci that comparable over large spatial temporal scales. These needs particularly common for studies...
Despite the long debate of whether or not multiple mating benefits offspring, studies still show contradictory results. Multiple takes time and energy. Thus, if females fertilize their eggs with a single mating, why to mate more than once? We investigated inferred paternal identity number sires in 12 clutches (240 hatchlings) green turtles (Chelonia mydas) nests at Tortuguero, Costa Rica. Paternal alleles were through comparison maternal hatchling genotypes, indicated paternity least 11...