keyword
MENU ▼
Read by QxMD icon Read
search

Sea turtle

keyword
https://www.readbyqxmd.com/read/27912005/climate-change-increases-the-production-of-female-hatchlings-at-a-northern-sea-turtle-rookery
#1
J L Reneker, S J Kamel
The most recent climate change projections show a global increase in temperatures, along with major adjustments to precipitation, throughout the 21st century. Species exhibiting temperature-dependent sex determination are highly susceptible to such changes since the incubation environment influences critical offspring characteristics such as survival and sex ratio. Here we show that the mean incubation duration of loggerhead sea turtle (Caretta caretta) nests from a high-density nesting beach on Bald Head Island, North Carolina, USA has decreased significantly over the past 25 yr...
December 2016: Ecology
https://www.readbyqxmd.com/read/27906515/development-evolving-the-origins-and-meanings-of-instinct
#2
REVIEW
Mark S Blumberg
How do migratory birds, herding dogs, and navigating sea turtles do the amazing things that they do? For hundreds of years, scientists and philosophers have struggled over possible explanations. In time, one word came to dominate the discussion: instinct. It became the catch-all explanation for those adaptive and complex abilities that do not obviously result from learning or experience. Today, various animals are said to possess a survival instinct, migratory instinct, herding instinct, maternal instinct, or language instinct...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27825845/trace-element-reference-intervals-in-the-blood-of-healthy-green-sea-turtles-to-evaluate-exposure-of-coastal-populations
#3
C A Villa, M Flint, I Bell, C Hof, C J Limpus, C Gaus
Exposure to essential and non-essential elements may be elevated for green sea turtles (Chelonia mydas) that forage close to shore. Biomonitoring of trace elements in turtle blood can identify temporal trends over repeated sampling events, but any interpretation of potential health risks due to an elevated exposure first requires a comparison against a baseline. This study aims to use clinical reference interval (RI) methods to produce exposure baseline limits for essential and non-essential elements (Na, Mg, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Mo, Cd, Sb, Ba, and Pb) using blood from healthy subadult turtles foraging in a remote and offshore part of the Great Barrier Reef...
November 5, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27811811/harpacticoid-copepods-their-symbiotic-associations-and-biogenic-substrata-a-review
#4
Rony Huys
Members of the order Harpacticoida are primarily free-living and benthic but some lineages have adopted alternative modes of life which involve a major habitat shift or dependence on a host. Since the first discovery of a harpacticoid associated with an invertebrate host about 150 years ago, a total of 172 species, representing 84 genera and 17 families, have been shown to live in symbiotic partnership with other organisms. The steady addition of new taxa during the last 35 years testifies to the widespread and previously underestimated occurrence of symbiosis in the group...
October 11, 2016: Zootaxa
https://www.readbyqxmd.com/read/27809394/precision-wildlife-medicine-applications-of-the-human-centred-precision-medicine-revolution-to-species-conservation
#5
Jenny Whilde, Mark Q Martindale, David J Duffy
The current species extinction crisis is being exacerbated by an increased rate of emergence of epizootic disease. Human-induced factors including habitat degradation, loss of biodiversity and wildlife population reductions resulting in reduced genetic variation are accelerating disease emergence. Novel, efficient and effective approaches are required to combat these epizootic events. Here, we present the case for the application of human precision medicine approaches to wildlife medicine in order to enhance species conservation efforts...
November 3, 2016: Global Change Biology
https://www.readbyqxmd.com/read/27800161/navigating-uncertain-waters-a-critical-review-of-inferring-foraging-behaviour-from-location-and-dive-data-in-pinnipeds
#6
REVIEW
Matt Ian Daniel Carter, Kimberley A Bennett, Clare B Embling, Philip J Hosegood, Debbie J F Russell
In the last thirty years, the emergence and progression of biologging technology has led to great advances in marine predator ecology. Large databases of location and dive observations from biologging devices have been compiled for an increasing number of diving predator species (such as pinnipeds, sea turtles, seabirds and cetaceans), enabling complex questions about animal activity budgets and habitat use to be addressed. Central to answering these questions is our ability to correctly identify and quantify the frequency of essential behaviours, such as foraging...
2016: Movement Ecology
https://www.readbyqxmd.com/read/27786797/first-record-of-fibropapillomatosis-in-a-green-turtle-chelonia-mydas-from-the-baja-california-peninsula
#7
Eduardo Reséndiz, Sergio Flores-Ramírez, Volker Koch, Amaury Cordero-Tapia
Fibropapillomatosis (FP) is characterized by multiple fibroepithelial tumors in all parts of the skin and has been reported in sea turtles worldwide. Clinically infected individuals are often emaciated and anemic. In Mexico, however, there are few records of this disease. In this study of green turtles Chelonia mydas in Laguna San Ignacio in Baja California Sur (BCS), we noted one juvenile with multifocal fibropapilloma lesions on the external upper surface of its eyes and hind flippers. Light microscopy revealed hyperkeratosis, epidermal hyperplasia, dermal papillary projections, and fibroblast proliferation...
December 2016: Journal of Aquatic Animal Health
https://www.readbyqxmd.com/read/27786161/characterization-of-fibropapillomatosis-in-green-turtles-chelonia-mydas-cheloniidae-captured-in-a-foraging-area-in-southeastern-brazil
#8
Alícia Bertoloto Tagliolatto, Suzana Machado Guimarães, Gisele Lobo-Hajdu, Cassiano Monteiro-Neto
Fibropapillomatosis (FP) is a multifactorial disease that affects all species of marine turtles, including green turtles Chelonia mydas (Linnaeus, 1758). It is characterised by the development of internal or external tumours that, depending on their locations and sizes, may intensely impact the health condition of sea turtles. The goal of this study was to characterise the disease in C. mydas found in a foraging area in southeastern Brazil, evaluate the prevalence in this region, and correlate presence and absence, size, body distribution, number of tumours, and disease severity with biometric variables of the captured green turtles...
October 27, 2016: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/27780072/sensory-matched-filters
#9
Eric J Warrant
As animals move through their environments they are subjected to an endless barrage of sensory signals. Of these, some will be of utmost importance, such as the tell-tale aroma of a potential mate, the distinctive appearance of a vital food source or the unmistakable sound of an approaching predator. Others will be less important. Indeed some will not be important at all. There are, for instance, wide realms of the sensory world that remain entirely undetected, simply because an animal lacks the physiological capacity to detect and analyse the signals that characterise this realm...
October 24, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27755731/biomarkers-reveal-sea-turtles-remained-in-oiled-areas-following-the-deepwater-horizon-oil-spill
#10
Hannah B Vander Zanden, Alan B Bolten, Anton D Tucker, Kristen M Hart, Margaret M Lamont, Ikuko Fujisaki, Kimberly J Reich, David S Addison, Katherine L Mansfield, Katrina F Phillips, Mariela Pajuelo, Karen A Bjorndal
Assessments of large-scale disasters, such as the Deepwater Horizon oil spill, are problematic because while measurements of post-disturbance conditions are common, measurements of pre-disturbance baselines are only rarely available. Without adequate observations of pre-disaster organismal and environmental conditions, it is impossible to assess the impact of such catastrophes on animal populations and ecological communities. Here, we use long-term biological tissue records to provide pre-disaster data for a vulnerable marine organism...
October 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27741231/hearing-in-the-juvenile-green-sea-turtle-chelonia-mydas-a-comparison-of-underwater-and-aerial-hearing-using-auditory-evoked-potentials
#11
Wendy E D Piniak, David A Mann, Craig A Harms, T Todd Jones, Scott A Eckert
Sea turtles spend much of their life in aquatic environments, but critical portions of their life cycle, such as nesting and hatching, occur in terrestrial environments, suggesting that it may be important for them to detect sounds in both air and water. In this study we compared underwater and aerial hearing sensitivities in five juvenile green sea turtles (Chelonia mydas) by measuring auditory evoked potential responses to tone pip stimuli. Green sea turtles detected acoustic stimuli in both media, responding to underwater stimuli between 50 and 1600 Hz and aerial stimuli between 50 and 800 Hz, with maximum sensitivity between 200 and 400 Hz underwater and 300 and 400 Hz in air...
2016: PloS One
https://www.readbyqxmd.com/read/27729983/multi-year-tracking-reveals-extensive-pelagic-phase-of-juvenile-loggerhead-sea-turtles-in-the-north-pacific
#12
D K Briscoe, D M Parker, S Bograd, E Hazen, K Scales, G H Balazs, M Kurita, T Saito, H Okamoto, M Rice, J J Polovina, L B Crowder
BACKGROUND: The juvenile stage of loggerhead sea turtles (Caretta caretta) can last for decades. In the North Pacific Ocean, much is known about their seasonal movements in relation to pelagic habitat, yet understanding their multi-year, basin-scale movements has proven more difficult. Here, we categorize the large-scale movements of 231 turtles satellite tracked from 1997 to 2013 and explore the influence of biological and environmental drivers on basin-scale movement. RESULTS: Results show high residency of juvenile loggerheads within the Central North Pacific and a moderate influence of the Earth's magnetic field, but no real-time environmental driver to explain migratory behavior...
2016: Movement Ecology
https://www.readbyqxmd.com/read/27716578/maternal-transfer-and-sublethal-immune-system-effects-of-brevetoxin-exposure-in-nesting-loggerhead-sea-turtles-caretta-caretta-from-western-florida
#13
Justin R Perrault, Katherine D Bauman, Taylor M Greenan, Patricia C Blum, Michael S Henry, Catherine J Walsh
Blooms of Karenia brevis (also called red tides) occur almost annually in the Gulf of Mexico. The health effects of the neurotoxins (i.e., brevetoxins) produced by this toxic dinoflagellate on marine turtles are poorly understood. Florida's Gulf Coast represents an important foraging and nesting area for a number of marine turtle species. Most studies investigating brevetoxin exposure in marine turtles thus far focus on dead and/or stranded individuals and rarely examine the effects in apparently "healthy" free-ranging individuals...
November 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27698171/mycobacterium-haemophilum-infection-in-a-juvenile-leatherback-sea-turtle-dermochelys-coriacea
#14
Kyle Donnelly, Thomas B Waltzek, James F X Wellehan, Nicole I Stacy, Maria Chadam, Brian A Stacy
Mycobacteriosis is infrequently reported in free-ranging sea turtles. Nontuberculous Mycobacterium haemophilum was identified as the causative agent of disseminated mycobacteriosis in a juvenile leatherback turtle (Dermochelys coriacea) that was found stranded on the Atlantic coast of Florida. Disseminated granulomatous inflammation was identified histologically, most notably affecting the nervous system. Identification of mycobacterial infection was based on cytologic, molecular, histologic, and microbiologic methods...
November 2016: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27697698/characterization-of-brevetoxin-pbtx-3-exposure-in-neurons-of-the-anoxia-tolerant-freshwater-turtle-trachemys-scripta
#15
Courtney C Cocilova, Sarah L Milton
Harmful algal blooms are increasing in frequency and extent worldwide and occur nearly annually off the west coast of Florida where they affect both humans and wildlife. The dinoflagellate Karenia brevis is a key organism in Florida red tides that produces a suite of potent neurotoxins collectively referred to as the brevetoxins (PbTx). Brevetoxins bind to and open voltage gated sodium channels (VGSC), increasing cell permeability in excitable cells and depolarizing nerve and muscle tissue. Exposed animals may thus show muscular and neurological symptoms including head bobbing, muscle twitching, paralysis, and coma; large HABs can result in significant morbidity and mortality of marine life, including fish, birds, marine mammals, and sea turtles...
September 28, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27694826/hydrodynamic-role-of-longitudinal-dorsal-ridges-in-a-leatherback-turtle-swimming
#16
Kyeongtae Bang, Jooha Kim, Sang-Im Lee, Haecheon Choi
Leatherback sea turtles (Dermochelys coriacea) are known to have a superior diving ability and be highly adapted to pelagic swimming. They have five longitudinal ridges on their carapace. Although it was conjectured that these ridges might be an adaptation for flow control, no rigorous study has been performed to understand their hydrodynamic roles. Here we show that these ridges are slightly misaligned to the streamlines around the body to generate streamwise vortices, and suppress or delay flow separation on the carapace, resulting in enhanced hydrodynamic performances during different modes of swimming...
October 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27651538/sea-turtle-symbiosis-facilitates-social-monogamy-in-oceanic-crabs-via-refuge-size
#17
Joseph B Pfaller, Michael A Gil
The capacity for resource monopolization by individuals often dictates the size and composition of animal groups, and ultimately, the adoption of mating strategies. For refuge-dwelling animals, the ability (or inability) of individuals to monopolize refuges should depend on the relative size of the refuge. In theory, groups should be larger and more inclusive when refuges are large, and smaller and more exclusive when refuges are small, regardless of refuge type. We test this prediction by comparing the size and composition of groups of oceanic crabs (Planes minutus) living on plastic flotsam and loggerhead sea turtles...
September 2016: Biology Letters
https://www.readbyqxmd.com/read/27605493/isotopic-effects-of-different-preservation-methods-on-scales-of-olive-ridley-sea-turtles-lepidochelys-olivacea-from-the-mexican-central-pacific
#18
Carla Carpena-Catoira, Christian D Ortega-Ortiz, Fernando R Elorriaga-Verplancken
RATIONALE: Stable isotope analysis can be used to obtain information on olive ridley sea turtles in the Mexican Central Pacific (MCP). Tissue samples such as scale, muscle, and blood are usually not analyzed immediately and are preserved in different substances such as ethanol, formalin, sodium chloride, the ideal being liquid nitrogen. Due to logistical reasons, that preservation method cannot always be used. The objective of the present study was to evaluate the efficiency of DMSO as a preservation agent for later stable isotope analysis...
September 8, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/27579608/female-bias-in-a-long-term-study-of-a-species-with-temperature-dependent-sex-determination-monitoring-sex-ratios-for-climate-change-research
#19
Joanne Braun McNeill, Larisa Avens, April Goodman Hall, Lisa R Goshe, Craig A Harms, David W Owens
Alterations have occurred and continue to manifest in the Earth's biota as a result of climate change. Animals exhibiting temperature dependent sex determination (TSD), including sea turtles, are perhaps most vulnerable to a warming of the Earth as highly skewed sex ratios can result, potentially leading to population extinction resulting from decreased male recruitment. Recent studies have begun to quantify climate change impacts to sea turtle populations, especially in terms of predicting effects on hatchling sex ratios...
2016: PloS One
https://www.readbyqxmd.com/read/27579605/terminal-restriction-fragment-length-polymorphism-for-the-identification-of-spirorchiid-ova-in-tissues-from-the-green-sea-turtle-chelonia-mydas
#20
Phoebe A Chapman, Rebecca J Traub, Myat T Kyaw-Tanner, Helen Owen, Mark Flint, Thomas H Cribb, Paul C Mills
Blood flukes are among the most common disease causing pathogens infecting vertebrates, including humans and some of the world's most globally endangered fauna. Spirorchiid blood flukes are parasites of marine turtles, and are associated with pathology, strandings and mortalities worldwide. Their ova embolize in tissues and incite significant inflammatory responses, however attempts to draw correlations between species and lesions are frustrated by difficulties in identifying ova beyond the genus level. In this study, a newly developed terminal restriction fragment length polymorphism (T-RFLP) method was validated as a tool for differentiating between mixed spirorchiid ova in turtle tissue...
2016: PloS One
keyword
keyword
54937
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"