scholarly journals Behavioural responses of humpback whales to food-related chemical stimuli

PLoS ONE ◽  
2019 ◽  
Vol 14 (2) ◽  
pp. e0212515 ◽  
Author(s):  
Bertrand Bouchard ◽  
Jean-Yves Barnagaud ◽  
Marion Poupard ◽  
Hervé Glotin ◽  
Pauline Gauffier ◽  
...  
Keyword(s):  
Humpback Whales ◽  
Behavioural Responses ◽  
Chemical Stimuli

Coupling of Environmental and Endogenous Factors in the Control of Rhythmic Behaviour in Decapod Crustaceans

1997 ◽  
Vol 77 (1) ◽  
pp. 17-29 ◽  
Author(s):  
Hugo Aréchiga ◽  
Leonardo Rodríguez-Sosa
Keyword(s):  
Higher Order ◽  
Circadian Rhythmicity ◽  
Decapod Crustaceans ◽  
Endogenous Factors ◽  
Environmental Signals ◽  
Motor Responses ◽  
Behavioural Responses ◽  
Retinal Photoreceptors ◽  
Behavioural Patterns ◽  
Chemical Stimuli

Behavioural patterns of crustaceans are known to vary within the 24 hour cycle and in relation to environmental signals. Light and chemical stimuli induce specific behavioural responses. Retinal and extra-retinal photoreceptors use different motor responses to illumination selectively. Light responsiveness is modulated at various levels, from the light admittance to the retina, up to the integration in higher order interneurones and motorneurones. An endogenous circadian rhythmicity contributes to the various elements of the system.

Behavioural responses of migrating humpback whales to swim-with-whale activities in the Ningaloo Marine Park, Western Australia

2020 ◽  
Vol 522 ◽  
pp. 151254 ◽  
Author(s):  
Kate R. Sprogis ◽  
Lars Bejder ◽  
Daniella Hanf ◽  
Fredrik Christiansen
Keyword(s):  
Western Australia ◽  
Humpback Whales ◽  
Behavioural Responses ◽  
Marine Park

Behavioural responses by hatchling racers (Coluber constrictor) from two geographically distinct populations to chemical stimuli from potential prey and predators

2000 ◽  
Vol 21 (1) ◽  
pp. 103-115 ◽  
Author(s):  
Gordon Burghardt ◽  
William Cooper ◽  
William Brown
Keyword(s):  
United States ◽  
South Carolina ◽  
Predator Avoidance ◽  
The United States ◽  
Anolis Carolinensis ◽  
Potential Prey ◽  
Strong Response ◽  
Behavioural Responses ◽  
Coluber Constrictor ◽  
Chemical Stimuli

AbstractIn experiments on responses to chemical food stimuli by previously unfed hatchlings from widely separated populations of the colubrid snake Coluber constrictor in the United States, strong responses were elicited by items important in the local diet. These differed between populations, suggesting that response has been adjusted to local diet by natural selection. Coluber constrictor priapus from South Carolina tongue-flicked at elevated rates to cues from lizards, snakes, and frogs, and bit only in response to a preferred lizard prey. They responded more strongly to the sympatric lizard Anolis carolinensis than to A. sagrei, an allopatric congener. Strong response to cues from the ophidiophagous snake Lampropeltis triangulum might reflect motivation for predator avoidance or for feeding, depending on relative snake sizes. Coluber constrictor mormon, for which insects and mammals are the most important foods, responded most strongly to stimuli from sympatric insects, mammals, and a lizard, as well as a bird.

scholarly journals The behavioural response of migrating humpback whales to a full seismic airgun array

2017 ◽  
Vol 284 (1869) ◽  
pp. 20171901 ◽  
Author(s):  
Rebecca A. Dunlop ◽  
Michael J. Noad ◽  
Robert D. McCauley ◽  
Eric Kniest ◽  
Robert Slade ◽  
...  
Keyword(s):  
Respiration Rate ◽  
Biological Significance ◽  
Behavioural Response ◽  
Seismic Survey ◽  
Humpback Whales ◽  
Similar Magnitude ◽  
Normal Behaviour ◽  
Behavioural Responses ◽  
Behaviour Changes ◽  
Behavioural Repertoire

Despite concerns on the effects of noise from seismic survey airguns on marine organisms, there remains uncertainty as to the biological significance of any response. This study quantifies and interprets the response of migrating humpback whales ( Megaptera novaeangliae ) to a 3130 in 3 (51.3l) commercial airgun array. We compare the behavioural responses to active trials (array operational; n = 34 whale groups), with responses to control trials (source vessel towing the array while silent; n = 33) and baseline studies of normal behaviour in the absence of the vessel ( n = 85). No abnormal behaviours were recorded during the trials. However, in response to the active seismic array and the controls , the whales displayed changes in behaviour. Changes in respiration rate were of a similar magnitude to changes in baseline groups being joined by other animals suggesting any change group energetics was within their behavioural repertoire. However, the reduced progression southwards in response to the active treatments, for some cohorts, was below typical migratory speeds. This response was more likely to occur within 4 km from the array at received levels over 135 dB re 1 µPa 2 .s.

Behavioural Responses of Hermit Crabs to Shell Cues, Predator Haemolymph And Body Odour

1997 ◽  
Vol 77 (3) ◽  
pp. 737-751 ◽  
Author(s):  
Dan Rittschof ◽  
Brian A. Hazlett
Keyword(s):  
Hermit Crab ◽  
Size Range ◽  
Sea Water ◽  
Hermit Crabs ◽  
Behavioural Responses ◽  
Stone Crab ◽  
Major Response ◽  
Body Odour ◽  
Chemical Stimuli ◽  
Predator Odour

This study tested the hypothesis that predator odours alter behavioural responses of hermit crabs to other chemical stimuli. Stimuli that cause alarm and shell-related behaviour (hermit crab haemolymph and two gastropod flesh extracts), and stimuli that did not cause shell-related behaviour (sea-water and predator haemolymph) were used. Individual hermit crab responses to stimuli were observed in ambient sea-water and predator odour. In the absence of predator odour, hermit crab haemolymph and gastropod flesh extracts stimulated shell grasping behaviour. Locomotion was the major response to sea-water and stone crab haemolymph. Crabs behaved consistently when repeatedly exposed to a particular stimulus. In general, addition of predator odour to mixtures, resulted in decreased shell grasping and increased locomotion. Shell fit was a poor predictor of behaviour for the size range of crabs tested. Hermit crabs respond to, and discriminate, a variety of complex odour mixtures.

scholarly journals Lack of behavioural responses of humpback whales (Megaptera novaeangliae) indicate limited effectiveness of sonar mitigation

2017 ◽  
Vol 220 (22) ◽  
pp. 4150-4161 ◽  
Author(s):  
Paul J. Wensveen ◽  
Petter H. Kvadsheim ◽  
Frans-Peter A. Lam ◽  
Alexander M. von Benda-Beckmann ◽  
Lise D. Sivle ◽  
...  
Keyword(s):  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Behavioural Responses ◽  
Limited Effectiveness

Chemical Stimuli as a factor in feeding and intraspecific behaviour of Herring Larvae

1978 ◽  
Vol 58 (3) ◽  
pp. 739-747 ◽  
Author(s):  
C. H. Dempsey
Keyword(s):  
Olfactory System ◽  
Free Amino ◽  
Clupea Harengus ◽  
Larval Life ◽  
Free Amino Acid Pool ◽  
Active Constituents ◽  
Behavioural Responses ◽  
Chemical Stimuli ◽  
Balanus Balanoides ◽  
Increased Activity

On hatching, larvae of herring, Clupea harengus L., showed increased activity to washings and extracts of the nauplii of Balanus balanoides and to glycine and proline whichare major constituents of the free amino acid pool of Balanus. Older larvae, which were fed on the nauplii of Anemia salina, showed a response to extracts, but not to washings, of this prey; they also responded to six amino acids. The active constituents of prey extracts were found to be dialysable. Surgical section showed the olfactory system was responsible for behavioural responses in herring larvae of 21 mm (total length) to extracts of Anemiasalina. At all stages of larval life, herring showed increased activity to washings of other herring larvae. Juvenile herring showed a preference for a part of a tank containing water in which other juvenile herring had been held.

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