To see the other types of publications on this topic, follow the link: Prey.

Journal articles on the topic 'Prey'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Prey.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Abdul Manaf, Zati Iwani, and Mohd Hafiz Mohd. "Dynamical System Analysis of the Prey-predator Interactions involving Prey Refuge and Herd Behaviors in Preys." Malaysian Journal of Fundamental and Applied Sciences 18, no. 1 (2022): 105–15. http://dx.doi.org/10.11113/mjfas.v18n1.2415.

Full text
Abstract:
By employing a prey refuge mechanism, more preys can be protected from predation. Prey species are also better protected from predation when they congregate in herds. However, what if the prey refuge and herd behavior mechanisms were combined in a system? To investigate this phenomenon, we consider two different prey-predator systems with prey refuge capacity. The first system is a simple prey-predator with prey refuge, whereas the second system considers prey refuge and prey herd behavior mechanisms. Using these models, we explore how different prey refuge strategies affect species interactions in both systems. To accomplish this, we use theoretical techniques (e.g., computing steady states and performing the stability analysis) and numerical bifurcation analysis to demonstrate various dynamical behaviors of these two prey-predator systems. Once prey refuge is treated as a bifurcation parameter, we observe the occurrence of supercritical Hopf and transcritical bifurcations in both systems. Furthermore, we explore the dynamic effects of prey refuge and predator handling time on species population interactions: our findings reveal that using both prey refuge and herd behavior as escape strategies; it is possible to dilute the predation pressure and ensure species biodiversity.
APA, Harvard, Vancouver, ISO, and other styles
2

Orgad, Zvi. "Prey of Pray: Allegorizing the Liturgical Practice." Arts 9, no. 1 (2019): 3. http://dx.doi.org/10.3390/arts9010003.

Full text
Abstract:
Numerous images embedded in the painted decorations in early modern Central and Eastern European synagogues conveyed allegorical messages to the congregation. The symbolism was derived from biblical verses, stories, legends, and prayers, and sometimes different allegories were combined to develop coherent stories. In the present case study, which concerns a bird, seemingly a nocturnal raptor, depicted on the ceiling of the Unterlimpurg Synagogue, I explore the symbolism of this image in the contexts of liturgy, eschatology, and folklore. I undertake a comparative analysis of paintings in medieval and early modern illuminated manuscripts—both Christian and Jewish—and in synagogues in both Eastern and Central Europe. I argue that in some Hebrew illuminated manuscripts and synagogue paintings, nocturnal birds of prey may have been positive representations of the Jewish people, rather than simply a response to their negative image in Christian literature and art, but also a symbol of redemption. In the Unterlimpurg Synagogue, the night bird of prey, combined with other symbolic elements, represented a complex allegoric picture of redemption, possibly implying the image of King David and the kabbalistic nighttime prayer Tikkun Ḥaẓot. This case study demonstrates the way in which early modern synagogue painters created allegoric paintings that captured contemporary religious and mystical ideas and liturgical developments.
APA, Harvard, Vancouver, ISO, and other styles
3

Sih, Andrew, and David E. Wooster. "Prey Behavior, Prey Dispersal, and Predator Impacts on Stream Prey." Ecology 75, no. 5 (1994): 1199–207. http://dx.doi.org/10.2307/1937446.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Johansson, Frank. "Increased prey vulnerability as a result of prey-prey interactions." Hydrobiologia 308, no. 2 (1995): 131–37. http://dx.doi.org/10.1007/bf00007398.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Fitzmaurice, Dylan, Puja Saha, Megan E. Nunez, Eileen M. Spain, Catherine M. Volle, and Megan A. Ferguson. "Adhesion Forces in Bacterial Predator-Prey and Prey-Prey Systems." Biophysical Journal 116, no. 3 (2019): 431a. http://dx.doi.org/10.1016/j.bpj.2018.11.2317.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Varga, Doc. "Prey." After Dinner Conversation 2, no. 5 (2021): 5–44. http://dx.doi.org/10.5840/adc20212541.

Full text
Abstract:
When is suicide acceptable? Are their acceptable and unacceptable reasons for suicide? In this work of philosophical short story fiction, Jared has decided to enter a government program that, after 15 hours of counseling, will allow him to legally take his own life. Doctor Ansley is the top government therapist with 199 “saves” for the year. After several sessions it becomes clear that Jared has serious conviction about dying, but he also has a secret reason for his choice. Only after Doctor Ansley tricks him by giving him a fake test does he divulge his true reason for wanting to die. Jared believes the earth is feeding off of humans and has instilled, through chemical responses, our desire to stay alive so we will continue feeding it. In short, all humans are the earth’s food source and, only by becoming unattached from being alive, can we break the cycle. Jared completes the required sessions and dies. And Doctor Ansley now has questions as well.
APA, Harvard, Vancouver, ISO, and other styles
7

MacCarthy, Catherine Phil. "Prey." College English 61, no. 4 (1999): 474. http://dx.doi.org/10.2307/378926.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Goodwin, June. "Prey." Women's Review of Books 8, no. 2 (1990): 24. http://dx.doi.org/10.2307/4020874.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wrigley, Robert. "Prey." Manoa 32, no. 1 (2020): 141. http://dx.doi.org/10.1353/man.2020.0036.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Stein, Gary. "Prey." JAMA 304, no. 2 (2010): 133. http://dx.doi.org/10.1001/jama.2010.652.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Varga, Doc. "Prey." After Dinner Conversation 5, no. 3 (2024): 78–121. http://dx.doi.org/10.5840/adc20245328.

Full text
Abstract:
When is suicide acceptable? Are their acceptable and unacceptable reasons for suicide? In this work of philosophical short story fiction, Jared has decided to enter a government program that, after 15 hours of counseling, will allow him to legally take his own life. Doctor Ansley is the top government therapist with 199 “saves” for the year. After several sessions it becomes clear that Jared has serious conviction about dying, but he also has a secret reason for his choice. Only after Doctor Ansley tricks him by giving him a fake test does he divulge his true reason for wanting to die. Jared believes the earth is feeding off of humans and has instilled, through chemical responses, our desire to stay alive so we will continue feeding it. In short, all humans are the earth’s food source and, only by becoming unattached from being alive, can we break the cycle. Jared completes the required sessions and dies. And Doctor Ansley now has questions as well.
APA, Harvard, Vancouver, ISO, and other styles
12

Sih, Andrew. "Prey refuges and predator-prey stability." Theoretical Population Biology 31, no. 1 (1987): 1–12. http://dx.doi.org/10.1016/0040-5809(87)90019-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Yakubu, Abdul-Aziz. "Prey dominance in discrete predator-prey systems with a prey refuge." Mathematical Biosciences 144, no. 2 (1997): 155–78. http://dx.doi.org/10.1016/s0025-5564(97)00026-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Houston, A. I. "Prey size of single-prey loaders as an indicator of prey abundance." Ecology Letters 3, no. 1 (2000): 5–6. http://dx.doi.org/10.1046/j.1461-0248.2000.00110.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Jones, Katherine A., Andrew L. Jackson, and Graeme D. Ruxton. "Prey jitters; protean behaviour in grouped prey." Behavioral Ecology 22, no. 4 (2011): 831–36. http://dx.doi.org/10.1093/beheco/arr062.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Hethcote, Herbert W., Wendi Wang, Litao Han, and Zhien Ma. "A predator–prey model with infected prey." Theoretical Population Biology 66, no. 3 (2004): 259–68. http://dx.doi.org/10.1016/j.tpb.2004.06.010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Siemers, Björn M., and René Güttinger. "Prey conspicuousness can explain apparent prey selectivity." Current Biology 16, no. 5 (2006): R157—R159. http://dx.doi.org/10.1016/j.cub.2006.02.056.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Siemers, Björn M., and René Güttinger. "Prey conspicuousness can explain apparent prey selectivity." Current Biology 16, no. 5 (2006): R157—R159. https://doi.org/10.5281/zenodo.13429453.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Siemers, Björn M., and René Güttinger. "Prey conspicuousness can explain apparent prey selectivity." Current Biology 16, no. 5 (2006): R157—R159. https://doi.org/10.5281/zenodo.13429453.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Calver, MC, DA Saunders, and BD Porter. "The Diet of Nestling Rainbow Bee-Eaters, Merops-Ornatus, on Rottnest Island, Western-Australia, and Observations on a Non-Destructive Method of Diet Analysis." Wildlife Research 14, no. 4 (1987): 541. http://dx.doi.org/10.1071/wr9870541.

Full text
Abstract:
The diet of nestling rainbow bee-eaters, Merops ornatus, was determined by analysis of droppings and regurgitated pellets collected at one site on Rottnest I., W.A. in the summer of 1982/83, and five sites in the summer of 1983/84. In total, 2187 insects from 10 families were identified. These comprised: Hymenoptera (95%), including Scoliidae (14%), Tiphiidae (38%), Sphecidae (l8.5%), Apoidea (1%), Formicoidea (7.5%) and undetermined Hymenoptera (16%); Coleoptera, Buprestidae (1.5%); Diptera, Muscidae (<1%); Hemiptera (3%); Odonata (<1%); and Orthoptera (<1%). The relative proportions of the different prey types varied significantly between sites and between different sampling times at the same site. There were also site-related differences in the mean length of nestling prey and at three sites nestlings were fed different sizes of prep during their development. Estimates of prey length based on wing remains were significantly smaller than those based on head remains at four of the six sites, and shapes of prey length distributions based on wings and heads were significantly different at all six sites.
APA, Harvard, Vancouver, ISO, and other styles
21

Switzer, P. V. "Avian prey-dropping behavior. I. The effects of prey characteristics and prey loss." Behavioral Ecology 10, no. 3 (1999): 213–19. http://dx.doi.org/10.1093/beheco/10.3.213.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Zhang, Yixin, and John S. Richardson. "Unidirectional prey–predator facilitation: apparent prey enhance predators' foraging success on cryptic prey." Biology Letters 3, no. 3 (2007): 348–51. http://dx.doi.org/10.1098/rsbl.2007.0087.

Full text
Abstract:
Food availability can strongly affect predator–prey dynamics. When change in habitat condition reduces the availability of one prey type, predators often search for other prey, perhaps in a different habitat. Interactions between behavioural and morphological traits of different prey may influence foraging success of visual predators through trait-mediated indirect interactions (TMIIs), such as prey activity and body coloration. We tested the hypothesis that foraging success of stream-dwelling cutthroat trout ( Onchorhyncus clarki ) on cryptically coloured, less-active benthic prey (larval mayfly; Paraleptophebia sp.) can be enhanced by the presence of distinctly coloured, active prey (larval stonefly shredder; Despaxia augusta ). Cutthroat trout preyed on benthic insects when drifting invertebrates were unavailable. When stonefly larvae were present, the trout ate most of the stoneflies and also consumed a higher proportion of mayflies than under mayfly only treatment. The putative mechanism is that active stonefly larvae supplied visual cues to the predator that alerted trout to the mayfly larvae. Foraging success of visual predators on cryptic prey can be enhanced by distinctly coloured, active benthic taxa through unidirectional facilitation to the predators, which is a functional change of interspecific interaction caused by a third species. This study suggests that prey–predator facilitation through TMIIs can modify species interactions, affecting community dynamics.
APA, Harvard, Vancouver, ISO, and other styles
23

Guo, Xiaoxia, and Zhiming Guo. "A Markov-switching predator–prey model with Allee effect for preys." International Journal of Biomathematics 13, no. 03 (2020): 2050018. http://dx.doi.org/10.1142/s1793524520500187.

Full text
Abstract:
This paper concerns with a Markov-switching predator–prey model with Allee effect for preys. The conditions under which extinction of predator and prey populations occur have been established. Sufficient conditions are also given for persistence and global attractivity in mean. In addition, stability in the distribution of the system under consideration is derived under some assumptions. Finally, numerical simulations are carried out to illustrate theoretical results.
APA, Harvard, Vancouver, ISO, and other styles
24

GILLESPIE, ROSEMARY. "Impaled prey." Nature 355, no. 6357 (1992): 212–13. http://dx.doi.org/10.1038/355212b0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Pittinos, Emily. "Prey Animal." New England Review 40, no. 1 (2019): 86–92. http://dx.doi.org/10.1353/ner.2019.0015.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Pickering, Travis Rayne. "Underrated Prey?" Evolutionary Anthropology: Issues, News, and Reviews 14, no. 4 (2005): 159–64. http://dx.doi.org/10.1002/evan.20070.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Matia, S. N., and S. Alam. "Prey-predator Dynamics under Herd Behavior of Prey." Universal Journal of Applied Mathematics 1, no. 4 (2013): 251–57. http://dx.doi.org/10.13189/ujam.2013.010408.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Gani, J., and R. J. Swift. "Prey-predator models with infected prey and predators." Discrete and Continuous Dynamical Systems 33, no. 11/12 (2013): 5059–66. http://dx.doi.org/10.3934/dcds.2013.33.5059.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

A. Braza, Peter. "Predator-Prey Dynamics with Disease in the Prey." Mathematical Biosciences and Engineering 2, no. 4 (2005): 703–17. http://dx.doi.org/10.3934/mbe.2005.2.703.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Allan, J. D., A. S. Flecker, and N. L. McClintock. "Prey Preference of Stoneflies: Sedentary vs Mobile Prey." Oikos 49, no. 3 (1987): 323. http://dx.doi.org/10.2307/3565768.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Rahman, Md Sabiar, and Santabrata Chakravarty. "A predator-prey model with disease in prey." Nonlinear Analysis: Modelling and Control 18, no. 2 (2013): 191–209. http://dx.doi.org/10.15388/na.18.2.14022.

Full text
Abstract:
. The present investigation deals with the disease in the prey population having significant role in curbing the dynamical behaviour of the system of prey-predator interactions from both ecological and mathematical point of view. The predator-prey model introduced by Cosner et al. [1] has been wisely modified in the present work based on the biological point of considerations. Here one introduces the disease which may spread among the prey species only. Following the formulation of the model, all the equilibria are systematically analyzed and the existence of a Hopf bifurcation at the interior equilibrium has been duly carried out through their graphical representations with appropriate discussion in order to validate the applicability of the system under consideration
APA, Harvard, Vancouver, ISO, and other styles
32

Møller, A. P., J. M. Peralta-Sánchez, J. T. Nielsen, E. López-Hernández, and J. J. Soler. "Goshawk prey have more bacteria than non-prey." Journal of Animal Ecology 81, no. 2 (2011): 403–10. http://dx.doi.org/10.1111/j.1365-2656.2011.01923.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Bruno, Eleonora, Christian Marc Andersen Borg, and Thomas Kiørboe. "Prey Detection and Prey Capture in Copepod Nauplii." PLoS ONE 7, no. 10 (2012): e47906. http://dx.doi.org/10.1371/journal.pone.0047906.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Chakraborty, Aspriha, Manmohan Singh, David Lucy, and Peter Ridland. "Predator–prey model with prey-taxis and diffusion." Mathematical and Computer Modelling 46, no. 3-4 (2007): 482–98. http://dx.doi.org/10.1016/j.mcm.2006.10.010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Chivers, W. J., W. Gladstone, R. D. Herbert, and M. M. Fuller. "Predator–prey systems depend on a prey refuge." Journal of Theoretical Biology 360 (November 2014): 271–78. http://dx.doi.org/10.1016/j.jtbi.2014.07.016.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Martin, Annik, and Shigui Ruan. "Predator-prey models with delay and prey harvesting." Journal of Mathematical Biology 43, no. 3 (2001): 247–67. http://dx.doi.org/10.1007/s002850100095.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Wang, Yi, and Jianzhong Wang. "Influence of prey refuge on predator–prey dynamics." Nonlinear Dynamics 67, no. 1 (2011): 191–201. http://dx.doi.org/10.1007/s11071-011-9971-z.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Ugan, Andrew, and Steven Simms. "On Prey Mobility, Prey Rank, and Foraging Goals." American Antiquity 77, no. 1 (2012): 179–85. http://dx.doi.org/10.7183/0002-7316.77.1.179.

Full text
Abstract:
AbstractIn their recent paper “In Pursuit of Mobile Prey,” Bird, Bliege-Bird, and Codding (2009) identify a negative relationship between body size and post-encounter returns among Martu prey in western Australia, attributing the phenomena to the greater mobility of large animals and associated risk of hunting failure. While this phenomenon has implications for archaeological applications of foraging models that assume body size and on-encounter returns are positively correlated, the Martu data may be less exceptional than they appear. Here we outline the reasons for our skepticism, point out areas in which we are in agreement, and build upon their findings by exploring the trade-offs between foraging to maximize efficiency and immediate returns and foraging for purposes other than immediate provisioning.
APA, Harvard, Vancouver, ISO, and other styles
39

Onkonburi, J., and D. R. Formanowicz '. "Prey choice by predators: effect of prey vulnerability." Ethology Ecology & Evolution 9, no. 1 (1997): 19–25. http://dx.doi.org/10.1080/08927014.1997.9522899.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Chen, Meijun, Huaihuo Cao, and Shengmao Fu. "Stationary Patterns of a Predator–Prey Model with Prey-Stage Structure and Prey-Taxis." International Journal of Bifurcation and Chaos 31, no. 03 (2021): 2150038. http://dx.doi.org/10.1142/s0218127421500383.

Full text
Abstract:
In this paper, a predator–prey model with prey-stage structure and prey-taxis is proposed and studied. Firstly, the local stability of non-negative constant equilibria is analyzed. It is shown that non-negative equilibria have the same stability between ODE system and self-diffusion system, and self-diffusion does not have a destabilization effect. We find that there exists a threshold value [Formula: see text] such that the positive equilibrium point of the model becomes unstable when the prey-taxis rate [Formula: see text], hence the taxis-driven Turing instability occurs. Furthermore, by applying Crandall–Rabinowitz bifurcation theory, the existence, the stability and instability, and the turning direction of bifurcating steady state are investigated in detail. Finally, numerical simulations are provided to support the mathematical analysis.
APA, Harvard, Vancouver, ISO, and other styles
41

DEVI, SAPNA. "NONCONSTANT PREY HARVESTING IN RATIO-DEPENDENT PREDATOR–PREY SYSTEM INCORPORATING A CONSTANT PREY REFUGE." International Journal of Biomathematics 05, no. 02 (2012): 1250021. http://dx.doi.org/10.1142/s1793524511001635.

Full text
Abstract:
This paper deals with the problem of nonconstant harvesting of prey in a ratio-dependent predator–prey system incorporating a constant prey refuge. Here we use the reasonable catch-rate function instead of usual catch-per-unit-effort hypothesis. The existence, as well as the stability of possible equilibria, is carried out. Bionomic equilibrium of the system is determined and optimal harvest policy is studied with the help of Pontryagin's maximum principle. The key results developed in this paper are illustrated using numerical simulations. Our results indicate that dynamic behavior of the system very much depends on the prey refuge parameter and increasing amount of refuge could increase prey density and may lead to the extinction of predator population density.
APA, Harvard, Vancouver, ISO, and other styles
42

Buffoni, G., M. Groppi, and C. Soresina. "Effects of prey over–undercrowding in predator–prey systems with prey-dependent trophic functions." Nonlinear Analysis: Real World Applications 12, no. 5 (2011): 2871–87. http://dx.doi.org/10.1016/j.nonrwa.2011.04.013.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Kooi, Bob W., and Ezio Venturino. "Ecoepidemic predator–prey model with feeding satiation, prey herd behavior and abandoned infected prey." Mathematical Biosciences 274 (April 2016): 58–72. http://dx.doi.org/10.1016/j.mbs.2016.02.003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Křivan, Vlastimil, and Anupam Priyadarshi. "L-shaped prey isocline in the Gause predator–prey experiments with a prey refuge." Journal of Theoretical Biology 370 (April 2015): 21–26. http://dx.doi.org/10.1016/j.jtbi.2015.01.021.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Sharma, Swarnali, and G. P. Samanta. "A Leslie–Gower predator–prey model with disease in prey incorporating a prey refuge." Chaos, Solitons & Fractals 70 (January 2015): 69–84. http://dx.doi.org/10.1016/j.chaos.2014.11.010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Saha, Sangeeta, Alakes Maiti, and Guruprasad Samanta. "Analysis of a Prey-predator Model with Prey Refuge in Infected Prey and Strong Allee Effect in Susceptible Prey Population." Interdisciplinary journal of Discontinuity, Nonlinearity, and Complexity 11, no. 4 (2022): 671–703. http://dx.doi.org/10.5890/dnc.2022.12.008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Tomatsuri, Morihiko, and Koetsu Kon. "Comparison of Three Methods for Determining the Prey Preference of the Muricid SnailReishia clavigera." Journal of Marine Biology 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/484392.

Full text
Abstract:
We propose an appropriate method for investigating the prey preferences of the muricid snailReishia clavigera(Küster, 1860) with limited collection of live prey. We compared 3 methods for examining the prey preference. The first was a predation experiment, conducted with dead prey instead of live prey. The second was a prey choice test using a few preys. In this experiment, both live and dead prey were used. The last method was a stable isotope analysis ofR. clavigeraand its putative prey items. Using live prey, bivalves were the most preferred prey, but goose barnacle was the most preferred prey species in experiments using dead prey. The carbon and nitrogen stable isotope analysis supported the live prey experiment. SinceR. clavigeraprefer preying on live prey but will scavenge or cannibalize when no other food is available in natural habitats, experimental methods using dead prey are not suitable for investigating its prey preferences. Considering the damage to natural habitats, the prey choice test is ecologically benign. Taken together, our findings suggested the prey choice test is the most appropriate method of identifying the prey preferences of muricid snails when large numbers of live preys are difficult to collect.
APA, Harvard, Vancouver, ISO, and other styles
48

Page, Rachel A., and Michael J. Ryan. "Flexibility in assessment of prey cues: frog-eating bats and frog calls." Proceedings of the Royal Society B: Biological Sciences 272, no. 1565 (2005): 841–47. https://doi.org/10.5281/zenodo.14818976.

Full text
Abstract:
(Uploaded by Plazi for the Bat Literature Project) Predators use cues associated with their prey to assess prey quality and to avoid consuming poisonous prey. Considerable attention has been given to predators' use of aposematic cues to assess prey quality, but little is known about predators that eavesdrop on prey cues that are not intended for them. Here we investigate the prey-cue/prey-quality associations of a predator that eavesdrops on the sexual advertisement signals of its prey. Stability is expected in prey-cue/prey-quality associations when mistakes in prey assessment are lethal. Conversely, flexibility is possible when mistakes are less costly. Predators that must respond to temporal and spatial fluctuations in prey availability should be more flexible in their assessment of prey quality. Given these predictions, we examined flexibility in the ability of wild-caught bats to reverse prey-cue/prey-quality associations for a preferred prey and a poisonous one. We found that the predatory bat, Trachops cirrhosus , has a heretofore undescribed ability to reverse its evaluations of the cues that signal preferred prey.
APA, Harvard, Vancouver, ISO, and other styles
49

Lundvall, David, Richard Svanbäck, Lennart Persson, and Pär Byström. "Size-dependent predation in piscivores: interactions between predator foraging and prey avoidance abilities." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 7 (1999): 1285–92. http://dx.doi.org/10.1139/f99-058.

Full text
Abstract:
Body size is known to play a crucial role in predator-prey interactions. For a given predator size, it has been suggested that prey mortality should be a dome-shaped function dependent on prey body size. In this study, we experimentally tested (i) the suggested mechanisms responsible for the dome-shaped prey vulnerability function and (ii) whether a prey refuge affected the form of this function. As prey, we used young-of-the-year Eurasian perch (Perca fluviatilis), and as predator, larger Eurasian perch. The prey mortality as a function of prey size was dome shaped for large and medium predators but decreased monotonically with prey size for small predators. Capture success of predators decreased monotonically with increasing prey size and was lower for small predators. In refuge trials, the mortality of prey declined monotonically with prey size for all predator sizes. Refuge use of prey increased with the sizes of both prey and predator. Our results suggest that the hypothesized dome-shaped relationship on prey vulnerability can be altered by the presence of an absolute prey refuge. Our results further suggest that the ability to perform more flexible foraging behaviors is of increasing importance when prey size increases.
APA, Harvard, Vancouver, ISO, and other styles
50

Elbroch, L. Mark, Patrick E. Lendrum, Hugh Robinson, and Howard B. Quigley. "Population- and individual-level prey selection by a solitary predator as determined with two estimates of prey availability." Canadian Journal of Zoology 94, no. 4 (2016): 275–82. http://dx.doi.org/10.1139/cjz-2015-0092.

Full text
Abstract:
Prey selection is exhibited by predator populations that kill a prey species disproportionate to its availability, or alternatively, individual predators that select prey disproportionate to the mean selection exhibited by their populations. Prey selection is a simple calculation when one can determine prey availability; however, measuring prey availability is challenging. We compared population- and individual-level prey selection as determined with two measures of prey availability for five ungulate species killed by pumas (Puma concolor (L., 1771)) in the Southern Yellowstone Ecosystem, USA: (1) annual prey counts and (2) total prey killed by marked pumas. We also tested whether individual pumas in the population exhibited a narrower dietary niche breadth compared with their population as a whole. The two methods yielded different estimates of prey availability and highlighted the need to consciously match prey availability estimates with appropriate ecological questions. Prey counts may have overestimated elk (Cervus canadensis (Erxleben, 1777)) abundance and underestimated deer abundance, whereas predation data may have better captured the influence of prey size on puma-specific prey vulnerability and availability. Prey counts were the more appropriate metric for analyzing population-level prey selection or differences in interspecific foraging, whereas total prey killed was the more appropriate metric for intraspecific comparisons.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!