The Behavioral Type of a Top Predator Drives the Short-Term Dynamic of Intraguild Predation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F17%3A43912064" target="_blank" >RIV/62156489:43410/17:43912064 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/17:00099061
Result on the web
<a href="https://doi.org/10.1086/690501" target="_blank" >https://doi.org/10.1086/690501</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1086/690501" target="_blank" >10.1086/690501</a>
Alternative languages
Result language
angličtina
Original language name
The Behavioral Type of a Top Predator Drives the Short-Term Dynamic of Intraguild Predation
Original language description
Variation in behavior among individual top predators (i.e., the behavioral type) can strongly shape pest suppression in intraguild predation (IGP). However, the effect of a top predator's behavioral typenamely, foraging aggressiveness (number of killed divided by prey time) and prey choosiness (preference degree for certain prey type)on the dynamic of IGP may interact with the relative abundances of top predator, mesopredator, and pest. We investigated the influence of the top predator's behavioral type on the dynamic of IGP in a three-species system with a top predator spider, a mesopredator spider, and a psyllid pest using a simulation model. The model parameters were estimated from laboratory experiments and field observations. The top predator's behavioral type altered the food-web dynamics in a context-dependent manner. The system with an aggressive/nonchoosy top predator, without prey preferences between pest and mesopredator, suppressed the pest more when the top predator to mesopredator abundance ratio was high. In contrast, the system with a timid/choosy top predator that preferred the pest to the mesopredator was more effective when the ratio was low. Our results show that the behavioral types and abundances of interacting species need to be considered together when studying food-web dynamics, because they evidently interact. To improve biocontrol efficiency of predators, research on the alteration of their behavioral types is needed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American Naturalist
ISSN
0003-0147
e-ISSN
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Volume of the periodical
189
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
242-253
UT code for WoS article
000395447700006
EID of the result in the Scopus database
2-s2.0-85013831867