Habitat structure changes the relationships between predator behavior, prey behavior, and prey survival rates
| Autor: | Colin M. Wright, Karis A. Daniel, Joanna B. Wong, Grant Navid Doering, Jonathan N. Pruitt, Raul Costa-Pereira, James L. L. Lichtenstein |
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| Přispěvatelé: | University of California Santa Barbara, Wilson College, Dalhousie University, São Paolo State University |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
media_common.quotation_subject Zoology 010603 evolutionary biology 01 natural sciences Intraspecific competition Mesocosm Predation Behavioral syndrome Tettigoniidae Animals Cannibalism Mantis Temperament Predator Ecology Evolution Behavior and Systematics Ecosystem media_common Trophic level biology Boldness 010604 marine biology & hydrobiology biology.organism_classification Hypervolumes Survival Rate Mantidae Perches Predatory Behavior Behavioral syndromes |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2022-04-28T19:26:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-06-01 Directorate for Biological Sciences National Center for Research Resources University of California, Santa Barbara The individual behavioral traits of predators and prey sometimes determine the outcome of their interactions. Here, we examine whether changes to habitat complexity alter the effects of predator and prey behavior on their survival rates. Specifically, we test whether behavioral traits (activity level, boldness, and perch height) measured in predators and prey or multivariate behavioral volumes best predict the survival rates of both trophic levels in staged mesocosms with contrasting structural complexity. Behavioral volumes and hypervolumes are a composite group-level behavioral diversity metric built from the individual-level behavioral traits we measured in predators and prey. We stocked mesocosms with a host plant and groups of cannibalistic predators (n = 5 mantises/mesocosm) and their prey (n = 15 katydids/mesocosm), and mesocosms varied in the presence/absence of additional non-living climbing structures. We found that mantis survival rates were unrelated to any behavioral metric considered here, but were higher in structurally complex mesocosms. Unexpectedly, katydids were more likely to survive when mantis groups occupied larger behavioral volumes, indicating that more behaviorally diverse predator groups are less lethal. Katydid mortality was also increased when both predators and prey exhibited higher average perch heights, but this effect was increased by the addition of supplemental structure. This is consistent with the expectation that structural complexity increases the effect of intraspecific behavioral variation on prey survival rates. Collectively, these results convey that the effects of predator and prey behavior on prey survival could depend highly on the environment in which they are evaluated. Department of Ecology Evolution and Marine Biology University of California Santa Barbara Department of Biology Wilson College Department of Biology Dalhousie University Department of Ecology São Paolo State University Directorate for Biological Sciences: 1352705 Directorate for Biological Sciences: 1455895 National Center for Research Resources: R01GM115509 |
| Databáze: | OpenAIRE |
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