scholarly journals Anti-predator behavior in pure and hybrid red-legged partridges

2019 ◽  
Vol 98 (8) ◽  
pp. 3085-3092
Author(s):  
S.G. Dávila ◽  
O.T. Cuenca ◽  
M.G. Gil ◽  
O.A. Toledano-Díaz ◽  
C Castaño ◽  
...  
Keyword(s):  
Predator Behavior

scholarly journals Investigation on dynamics of an impulsive predator–prey system with generalized Holling type IV functional response and anti-predator behavior

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Sekson Sirisubtawee ◽  
Nattawut Khansai ◽  
Akapak Charoenloedmongkhon
Keyword(s):  
Periodic Solution ◽  
Functional Response ◽  
Impulsive Control ◽  
Positive Periodic Solution ◽  
Existence Condition ◽  
Predator Prey ◽  
Type Iv ◽  
Prey System ◽  
Existence And Stability ◽  
Predator Behavior

AbstractIn the present article, we propose and analyze a new mathematical model for a predator–prey system including the following terms: a Monod–Haldane functional response (a generalized Holling type IV), a term describing the anti-predator behavior of prey populations and one for an impulsive control strategy. In particular, we establish the existence condition under which the system has a locally asymptotically stable prey-eradication periodic solution. Violating such a condition, the system turns out to be permanent. Employing bifurcation theory, some conditions, under which the existence and stability of a positive periodic solution of the system occur but its prey-eradication periodic solution becomes unstable, are provided. Furthermore, numerical simulations for the proposed model are given to confirm the obtained theoretical results.

scholarly journals Pre-release training, predator interactions and evidence for persistence of anti-predator behavior in reintroduced `alalā, Hawaiian crow

2021 ◽  
pp. e01658
Author(s):  
Alison L. Greggor ◽  
Bryce Masuda ◽  
Jacqueline M. Gaudioso-Levita ◽  
Jay Nelson ◽  
Thomas H. White ◽  
...  
Keyword(s):  
Predator Interactions ◽  
Predator Behavior

Anti-predator behavior of larval walleyes and saugeyes

2004 ◽  
Vol 107 (1 & 2) ◽  
pp. 69-76 ◽  
Author(s):  
Michael C. Quist ◽  
Christopher S. Guy
Keyword(s):  
Predator Behavior

scholarly journals Predation Tactics of Trumpetfish in Midwater

2008 ◽  
Vol 6 (2) ◽  
pp. 289-292 ◽  
Author(s):  
Peter J. Auster
Keyword(s):  
Caribbean Sea ◽  
Local Conditions ◽  
Habitat Patches ◽  
Netherlands Antilles ◽  
Southern Caribbean ◽  
Hunting Tactics ◽  
Predator Behavior

Predators are known to modify hunting tactics in response to local conditions to exploit prey of different species, densities or position within habitat patches. I describe three unusual prey hunting tactics used by trumpetfish (Aulostomus maculatus) distributed in midwater above reefs off Bonaire, Netherlands Antilles, in the southern Caribbean Sea. Hunting behaviors were focused on dense feeding aggregations of brown chromis (Chromis multilineata) and were categorized as: (1) slow horizontal following, (2) vertical hovering or drift, and (3) diagonal cross encounters where trumpetfish descended diagonally through the water while adjusting trajectory to encounter target prey. Understanding variation in predator behavior and ambit, in this case vertical ambit, adds to our knowledge of how predators adapt to unique local opportunities to exploit prey.

scholarly journals Phylogenetic comparative analyses of the determinants of anti-predator distraction behavior in shorebirds

2020 ◽  
Author(s):  
Miki Saijo ◽  
Nobuyuki Kutsukake
Keyword(s):  
Nest Site ◽  
Selective Pressure ◽  
Large Species ◽  
Behavioral Repertoire ◽  
Comparative Analyses ◽  
Colonial Nesting ◽  
Specific Variation ◽  
The Individual ◽  
Solitary Species ◽  
Predator Behavior

AbstractPredation risk exerts a strong selective pressure on anti-predator behavior, resulting in behaviors to achieve defense of offspring and the individual. In shorebirds, some species perform distraction behavior that is attracting the attention of a predator. This behavior evolved, and were lost multiple times, independently and the behavioral repertoire varies among species. Although defense of offspring is critical for parents, the determinants of inter-specific variation in the distraction behavior remain unstudied. We surveyed the literature and conducted phylogenetic comparative analyses (n = 169 species) to test predictions regarding nest site, body mass, and coloniality. We found that small species were more likely to perform distraction behavior than large species. Solitary species were more likely to perform distraction behavior than colonial nesting species. Previous studies suggested that colonial nesting and large species commonly perform aggressive anti-predator behavior, implying that distraction behavior is an alternative anti-predator strategy to aggressive ones.

scholarly journals Nesting stage and distance to refuge influence terrestrial nesting behavior of Painted Turtles (Chrysemys picta)

2017 ◽  
Vol 95 (11) ◽  
pp. 837-841 ◽  
Author(s):  
David M. Delaney ◽  
Fredric J. Janzen ◽  
Daniel A. Warner
Keyword(s):  
Empirical Work ◽  
Chrysemys Picta ◽  
Flight Behavior ◽  
Human Observer ◽  
Potential Predator ◽  
Nest Sites ◽  
Painted Turtles ◽  
Flight Costs ◽  
Fitness Benefits ◽  
Predator Behavior

Theory predicts prey should flee to safety when the fitness benefits of flight meet or exceed the costs. Empirical work has shown the importance of predation risk (e.g., predator behavior, distance to refuge) to prey flight behavior. However, less is known about the influence of flight costs. We monitored nesting Painted Turtles (Chrysemys picta (Schneider, 1783)) to examine their response to a human observer (potential predator) depending on the distance between a turtle and an observer, distance between a turtle and water (i.e., refuge), and nesting stage at the time of the encounter (i.e., searching for a nest site vs. constructing a nest). We found no evidence that the distance to an observer influenced flight decisions. However, turtles were less likely to flee as the distance to water increased, and turtles already constructing nests were more likely to continue nesting than those still searching for nest sites. Turtles that traveled farther from water and that were constructing nests may have continued nesting because they had invested considerable energy and were close to completing oviposition. Thus, the fitness benefits of being closer to successful oviposition may outweigh the costs of increased vulnerability to predators during this important and vulnerable period of reproduction.

scholarly journals Effects of predator behavior and proximity on risk assessment by Columbian black-tailed deer

2005 ◽  
Vol 17 (2) ◽  
pp. 246-254 ◽  
Author(s):  
Theodore Stankowich ◽  
Richard G. Coss
Keyword(s):  
Risk Assessment ◽  
Predator Behavior
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