Results 41 to 50 of about 8,513 (255)

Human trampling decreases surface activity and disturbs behavioral rhythm of an endangered intertidal crab

open access: yesEcological Indicators, 2021
Human recreational visits to tidal flats increase trampling pressure, which has a significant impact on the coastal benthic ecosystem. The fiddler crab Austruca lactea, which inhabits the upper intertidal region, is endangered in temperate regions such ...
Seojeong Park, Tae Won Kim
doaj   +1 more source

Rhythms of Locomotion Expressed by Limulus polyphemus, the American Horseshoe Crab: II. Relationship to Circadian Rhythms of Visual Sensitivity [PDF]

open access: yes, 2008
In the laboratory, horseshoe crabs express a circadian rhythm of visual sensitivity as well as daily and circatidal rhythms of locomotion. The major goal of this investigation was to determine whether the circadian clock underlying changes in visual ...
Bedford, Lisa   +2 more
core   +3 more sources

Sensitivity of Pagurus bernhardus (L.) to substrate-borne vibration and anthropogenic noise [PDF]

open access: yes, 2015
© 2015 Elsevier B.V. Despite the prevalence of vibration produced by anthropogenic activities impacting the seabed there are few data and little information as to whether these are detected by crustaceans and whether they interfere with their behaviour ...
Breithaupt, Thomas   +3 more
core   +1 more source

Determination of key environmental factors responsible for distribution patterns of fiddler crabs in a tropical mangrove ecosystem.

open access: yesPLoS ONE, 2015
In tropical regions, different species of fiddler crabs coexist on the mangrove floor, which sometimes makes it difficult to define species-specific habitat by visual inspection.
Mohammad Mokhtari   +3 more
doaj   +1 more source

Poison Frog Colors Are Honest Signals Of Toxicity, Particularly For Bird Predators [PDF]

open access: yes, 2012
Antipredator defenses and warning signals typically evolve in concert. However, the extensive variation across taxa in both these components of predator deterrence and the relationship between them are poorly understood.
Cummings, Molly E., Maan, Martine E.
core   +3 more sources

Spatiotemporal distribution and abundance of mangrove ecosystem engineers: burrowing crabs around canopy gaps [PDF]

open access: yes, 2015
The burrowing and feeding activities of fiddler and sesarmid crabs have considerable impacts on ecosystem functioning, accordingly they are considered ecosystem engineers.
Blamires, Sean J., Nobbs, Madeleine O.
core   +1 more source

The visual ecology of fiddler crabs

open access: yesJournal of Comparative Physiology A, 2005
With their eyes on long vertical stalks, their panoramic visual field and their pronounced equatorial acute zone for vertical resolving power, the visual system of fiddler crabs is exquisitely tuned to the geometry of vision in the flat world of inter-tidal mudflats.
Zeil, Jochen, Hemmi, Jan
openaire   +3 more sources

07 Intern Assignment Biological Adaptations [PDF]

open access: yes, 2020
WELCOME to WINDOWS on the INQUIRY CLASSROOM! You have landed on a piece of a National Science Foundation Project (DUE 1245730) directed by Professor Chris Bauer, Chemistry Department, University of New Hampshire.
Bauer, Christopher F.
core   +1 more source

Predation risk modifies behaviour by shaping the response of identified brain neurons [PDF]

open access: yes, 2016
Interpopulation comparisons in species that show behavioural variations associated with particular ecological disparities offer good opportunities for assessing how environmental factors may foster specific functional adaptations in the brain.
Luppi, Tomas Atilio   +3 more
core   +1 more source

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