scholarly journals Behavioral response of white-tailed deer to coyote predation risk

Ecosphere ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. e02141 ◽  
Author(s):  
William D. Gulsby ◽  
Michael J. Cherry ◽  
James T. Johnson ◽  
L. Mike Conner ◽  
Karl V. Miller
Keyword(s):  
Predation Risk ◽  
Behavioral Response

scholarly journals Behavioral responses of tadpoles of Duttaphrynus melanostictus (Anura: Bufonidae) to cues of starved and fed dragonfly larvae

2020 ◽  
Vol 19 (1) ◽  
pp. 93-98
Author(s):  
Santosh M. Mogali ◽  
Srinivas K. Saidapur ◽  
Bhagyashri A. Shanbhag
Keyword(s):  
Predation Risk ◽  
Behavioral Response ◽  
Behavioral Responses ◽  
Swimming Velocity ◽  
Duttaphrynus Melanostictus ◽  
Hoplobatrachus Tigerinus ◽  
Response To Water ◽  
Pantala Flavescens ◽  
Water Borne

Behavioral responses of tadpoles of Duttaphrynus melanostictus (Anura: Bufonidae) to cues of starved and fed dragonfly larvae. Tadpoles of Duttaphrynus melanostictus use chemoreception to detect kairomonal cues and excretory metabolites from predatory anuran tadpoles (Hoplobatrachus tigerinus) that consume them. We describe here the behavioral responses of tadpoles of D. melanostictus to predatory dragonfly larvae (Pantala flavescens). The predator’s kairomones (water conditioned by the starved predator) or its diet-derived metabolites released in excreta of predator after consumption of conspecific prey tadpoles were used to simulate predation risk. The tadpoles of D. melanostictus had no behavioral response to predator kairomones. However, the larvae reduced swimming movements and overall time spent in swimming, and had a higher burst speed/swimming velocity in response to water borne cues released from the excreta of predators fed conspecific prey. Thus, just the presence of dragonfly larvae does not elicit defense behaviors in tadpoles of D. melanostictus, but when predation risk is recognized as real (i.e., when tadpoles are exposed to excretory metabolites of predators fed conspecific tadpoles), defense behaviors are activated.

Dynamic rodent behavioral response to predation risk: implications for disease ecology

Oecologia ◽  
2019 ◽  
Vol 192 (1) ◽  
pp. 67-78 ◽  
Author(s):  
Remington J. Moll ◽  
Jeremiah T. Eaton ◽  
Jonathon D. Cepek ◽  
Patrick D. Lorch ◽  
Patricia M. Dennis ◽  
...  
Keyword(s):  
Predation Risk ◽  
Behavioral Response ◽  
Disease Ecology

Sexual Differences in the Behavioral Response of Túngara Frogs,Physalaemus pustulosus, to Cues Associated with Increased Predation Risk

Ethology ◽  
2007 ◽  
Vol 113 (8) ◽  
pp. 755-763 ◽  
Author(s):  
Ximena E. Bernal ◽  
A. Stanley Rand ◽  
Michael J. Ryan
Keyword(s):  
Predation Risk ◽  
Behavioral Response ◽  
Sexual Differences ◽  
Physalaemus Pustulosus ◽  
Tungara Frogs

scholarly journals Sex-based differences in anti-predator response of crickets to chemical cues of a mammalian predator

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4923 ◽  
Author(s):  
Brian P. Tanis ◽  
Bradley Bott ◽  
Brian J. Gaston
Keyword(s):  
Predation Risk ◽  
Behavioral Response ◽  
Chemical Cues ◽  
Acheta Domesticus ◽  
Mammalian Predators ◽  
Mammalian Predator ◽  
Predator Response ◽  
Blarina Hylophaga ◽  
Operational Sex Ratios ◽  
Predator Community

Anti-predator behaviors like vigilance or hiding come at the expense of other fitness increasing behaviors such as foraging. To compensate for this trade-off, prey assess predation risk and modify the frequency of anti-predator behaviors according to the likelihood of the threat. In this study, we tested the ability of house crickets (Acheta domesticus) to indirectly assess predation risk via odors from a mammalian predator, Elliot’s short-tailed shrew (Blarina hylophaga). As natural differences in encounter rates and predation risk differs between sexes, we tested if male and female crickets perceive similar rates of predation risk from the presence of shrew odor measured via anti-predator behavioral response. Crickets were placed in enclosed, cardboard-lined chambers either treated with shrew odor or control, along with a food source. Time until foraging was measured for each individual and compared across treatment and sex. We found that in the presence of shrew odor, female crickets delayed foraging while males showed no response. These results suggest adult crickets can use chemical cues to detect mammalian predators. Furthermore, we demonstrate that female crickets associate greater predation risk from shrew predators than do male crickets, which are more stationary yet acoustically conspicuous. As predation risk potentially differs drastically for each sex, changes to the operational sex ratios of wild cricket populations could be influenced by the identity of the predator community.

Elevated nest predation risk promotes offspring size variation in birds with prolonged parental care.

2019 ◽  
Author(s):  
Gretchen F. Wagner ◽  
Emeline Mourocq ◽  
Michael Griesser
Keyword(s):  
Predation Risk ◽  
Reproductive Cycle ◽  
Perceived Risk ◽  
Nest Predation ◽  
Bird Species ◽  
Size Variation ◽  
Egg Laying ◽  
Offspring Size ◽  
Natural Predation ◽  
Risk Spreading

Predation of offspring is the main cause of reproductive failure in many species, and the mere fear of offspring predation shapes reproductive strategies. Yet, natural predation risk is ubiquitously variable and can be unpredictable. Consequently, the perceived prospect of predation early in a reproductive cycle may not reflect the actual risk to ensuing offspring. An increased variance in investment across offspring has been linked to breeding in unpredictable environments in several taxa, but has so far been overlooked as a maternal response to temporal variation in predation risk. Here, we experimentally increased the perceived risk of nest predation prior to egg-laying in seven bird species. Species with prolonged parent-offspring associations increased their intra-brood variation in egg, and subsequently offspring, size. High risk to offspring early in a reproductive cycle can favour a risk-spreading strategy particularly in species with the greatest opportunity to even out offspring quality after fledging.

Predation risk during the early life history periods of fishes: separating the effects of size and age

1994 ◽  
Vol 111 ◽  
pp. 105-114
Author(s):  
DR Bertram ◽  
WC Leggett
Keyword(s):  
Life History ◽  
Predation Risk ◽  
Early Life ◽  
Early Life History

Cetaceans and Naval Sonar: Behavioral Response as a Function of Sonar Frequency

2009 ◽  
Author(s):  
Peter L. Tyack
Keyword(s):  
Behavioral Response

Deep Diving Cetacean Behavioral Response Study MED 09

2009 ◽  
Author(s):  
Angela D'Amico
Keyword(s):  
Behavioral Response ◽  
Deep Diving
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