Random Mate Searching: Male Sea Turtle Targets Juvenile for Mating Behavior

@inproceedings{Okuyama2014RandomMS,
  title={Random Mate Searching: Male Sea Turtle Targets Juvenile for Mating Behavior},
  author={Junichi Okuyama and Shiro Kagawa and Nobuaki Arai},
  year={2014}
}
Abstract Here, we report an incidental observation obtained by an animal-borne video logger of courtship behavior by an adult male green turtle (Chelonia mydas) directed toward an immature green turtle. Our result hypothesized that males may select a mating partner mainly using a visual cue based on size, but without high acuity, so that they can distinguish the size of mature females from that of immature turtles. Hence, male turtles may visualize the objects moving underwater that have the… Expand
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References

SHOWING 1-10 OF 27 REFERENCES
Behavioural studies on the green turtle (Chelonia mydas) in the sea
Abstract Underwater observations of green turtles near Fairfax Island, Bunker Group, Australia, disclosed female behaviour patterns to avoid copulation, including a striking adpressed hind limbExpand
The green turtle, Chelonia mydas, in Queensland: breeding males in the southern Great Barrier Reef
TLDR
Breeding male green turtles, Chelonia mydas, at any one courtship area in the southern Great Barrier Reef mate with females that will nest on rookeries spread throughout the region, and a higher proportion of males remigrate for additional breeding seasons at 1-2-year intervals. Expand
Ethogram of Immature Green Turtles: Behavioral Strategies for Somatic Growth in Large Marine Herbivores
TLDR
This work investigated fine-scale behavioral patterns (feeding, resting and other behaviors), microhabitat use and time spent on each behavior for eight immature green turtles using data loggers including: depth, global positioning system, head acceleration, speed and video sensors. Expand
DEPARTURE OF MALE OLIVE RIDLEY TURTLES (LEPIDOCHELYS OLIVACEA) FROM A NEARSHORE BREEDING GROUND
Between 1990 and 1993, adult male olive ridley turtles (Lepidochelys olivacea) were captured at their breeding ground, in the Gulf of Papagayo, on the Pacific coast of Costa Rica. We attached radioExpand
Loggerhead Turtles (Caretta caretta) Use Vision to Forage on Gelatinous Prey in Mid-Water
TLDR
This study uses an animal-borne imaging system and three-dimensional data logger simultaneously to observe the foraging behaviour of large juvenile and adult sized loggerhead turtles in their natural environment and finds that mid-water foraging events share the common feature of a marked deceleration phase associated with the capture and handling of the sluggish prey. Expand
Aerial Observations of Courtship Behavior in Loggerhead Sea Turtles (Caretta caretta) from Southeastern Georgia and Northeastern Florida
TLDR
The lectotype of Cystignathus hylodes is a member of the genus Leptodactylus, and because certain details differ between the lectotype and Leptocephalus natalensis, the two taxa should not be synonymized. Expand
Migratory and reproductive movements of male leatherback turtles (Dermochelys coriacea)
TLDR
Male migration to and residency in waters adjacent low-latitude nesting beaches in the western Atlantic suggest that this is where mating occurs, and return migration to these areas reveals male fidelity for breeding sites. Expand
Behaviour analysis of the loggerhead sea turtle Caretta caretta from direct in-water observation
Direct observation of animal behaviour is essential for the effective conservation of endangered species in their natural habitat, understanding their function within ecosystems and val- idatingExpand
Population genetics and phylogeography of sea turtles
TLDR
The biogeographic, behavioural, and ecological factors that shape the distribution of genetic diversity in sea turtles are reviewed, including natal homing, maternally inherited markers show strong population structure among nesting colonies while nuclear loci reveal a contrasting pattern of male‐mediated gene flow. Expand
Pre-reproductive Movements of Leatherback Sea Turtles (Dermochelys coriacea) Nesting in the Caribbean
TLDR
The data suggest that gravid turtles do not arrive from temperate latitudes until just prior to nesting, and that they go directly to a preferred nesting beach rather than nesting opportunistically en route. Expand
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