The Behavioral Type of a Top Predator Drives the Short-Term Dynamic of Intraguild Predation
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/00216224:14310/17:00099061
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The Behavioral Type of a Top Predator Drives the Short-Term Dynamic of Intraguild Predation
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
The Behavioral Type of a Top Predator Drives the Short-Term Dynamic of Intraguild Predation
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10618 - Ecology
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
American Naturalist
ISSN
0003-0147
e-ISSN
—
Svazek periodika
189
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
12
Strana od-do
242-253
Kód UT WoS článku
000395447700006
EID výsledku v databázi Scopus
2-s2.0-85013831867