Feeding kinematics of hatchling swellsharks, Cephaloscyllium ventriosum (Scyliorhinidae): the importance of predator size

1998 ◽  
Vol 131 (4) ◽  
pp. 703-718 ◽  
Author(s):  
L. A. Ferry-Graham
Keyword(s):  
Predator Size ◽  
Feeding Kinematics ◽  
Cephaloscyllium Ventriosum

scholarly journals Prey-predator size-dependent functional response: derivation and rescaling to the real world

2004 ◽  
Vol 73 (2) ◽  
pp. 239-252 ◽  
Author(s):  
Albashir A. Aljetlawi ◽  
Erik Sparrevik ◽  
Kjell Leonardsson
Keyword(s):  
Functional Response ◽  
Real World ◽  
The Real ◽  
Size Dependent ◽  
Predator Size

scholarly journals Successful escape of bombardier beetles from predator digestive systems

2018 ◽  
Vol 14 (2) ◽  
pp. 20170647 ◽  
Author(s):  
Shinji Sugiura ◽  
Takuya Sato
Keyword(s):  
Ecological Factors ◽  
Laboratory Conditions ◽  
Predator Size ◽  
Size Relationship ◽  
Chemical Spray

Some prey animals can escape from the digestive systems of predators after being swallowed. To clarify the ecological factors that determine the success of such an escape, we investigated how the bombardier beetle Pheropsophus jessoensis escapes from two toad species, Bufo japonicus and B . torrenticola , under laboratory conditions. Pheropsophus jessoensis ejects a hot chemical spray from the tip of the abdomen when it is attacked. Although all toads swallowed the bombardier beetles, 43% of the toads vomited the beetles 12–107 min after swallowing them. All the vomited beetles were still alive and active. Our experiment showed that P . jessoensis ejected hot chemicals inside the toads, thereby forcing the toads to vomit. Large beetles escaped more frequently than small beetles, and small toads vomited the beetles more frequently than large toads. Our results demonstrate the importance of the prey–predator size relationship in the successful escape of prey from inside a predator.

scholarly journals The behavioral response of prey fish to predators: the role of predator size

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3222 ◽  
Author(s):  
Zhong-Hua Tang ◽  
Qing Huang ◽  
Hui Wu ◽  
Lu Kuang ◽  
Shi-Jian Fu
Keyword(s):  
Relative Size ◽  
The Body ◽  
Size Difference ◽  
Prey Fish ◽  
Potential Predator ◽  
Black Carp ◽  
Predator Treatment ◽  
Predator Size ◽  
Significant Difference ◽  
Spontaneous Activities

Predation is one of the key factors governing patterns in natural systems, and adjustments of prey behaviors in response to a predator stimulus can have important ecological implications for wild fish. To investigate the effects of predators on the behavior of prey fish and to test whether the possible effects varied with predator size, black carp (Mylopharyngodon piceus) and snakehead (Channa argus) (a size-matched predator treatment with a similar body size to prey fish and a larger predator treatment with approximately 2.7 times of the body mass of prey fish) were selected to function as prey and predator, respectively. Their spontaneous activities were videorecorded in a central circular arena surrounded by a ring holding the stimulus fish. The distance between prey and predator fish was approximately 200% of the distance between two prey fish, which suggested that black carp can distinguish their conspecifics from heterospecifics and probably recognize the snakehead as a potential predator. The prey fish spent substantially less time moving and exhibited an overall shorter total distance of movement after the size-matched or large predator was introduced, which possibly occurred due to increased vigilance or efforts to reduce the possibility of detection by potential predators. However, there was no significant difference in either distance or spontaneous activities between two predator treatments. These findings suggested that (1) an anti-predator strategy in black carp might involve maintaining a safe distance, decreasing activity and possibly increased vigilance and that (2) the behaviors of prey response to predators were not influenced by their relative size difference.

scholarly journals Feeding kinematics and morphology of the alligator gar ( Atractosteus spatula , Lacépède, 1803)

2019 ◽  
Vol 280 (10) ◽  
pp. 1548-1570
Author(s):  
Justin B. Lemberg ◽  
Neil H. Shubin ◽  
Mark W. Westneat
Keyword(s):  
Alligator Gar ◽  
Feeding Kinematics ◽  
Atractosteus Spatula

scholarly journals Why the long face? A comparative study of feeding kinematics of two pipefishes with different snout lengths

2011 ◽  
Vol 78 (6) ◽  
pp. 1786-1798 ◽  
Author(s):  
S. Van Wassenbergh ◽  
G. Roos ◽  
P. Aerts ◽  
A. Herrel ◽  
D. Adriaens
Keyword(s):  
Comparative Study ◽  
Feeding Kinematics
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