Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12777 |
Quantifying predator dependence in the functional response of generalist predators | |
Novak, Mark1; Wolf, Christopher2; Coblentz, Kyle E.1; Shepard, Isaac D.1,3 | |
2017-06-01 | |
发表期刊 | ECOLOGY LETTERS |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2017 |
卷号 | 20期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A long-standing debate concerns how functional responses are best described. Theory suggests that ratio dependence is consistent with many food web patterns left unexplained by the simplest prey-dependent models. However, for logistical reasons, ratio dependence and predator dependence more generally have seen infrequent empirical evaluation and then only so in specialist predators, which are rare in nature. Here we develop an approach to simultaneously estimate the prey-specific attack rates and predator-specific interference (facilitation) rates of predators interacting with arbitrary numbers of prey and predator species in the field. We apply the approach to surveys and experiments involving two intertidal whelks and their full suite of potential prey. Our study provides strong evidence for predator dependence that is poorly described by the ratio dependent model over manipulated and natural ranges of species abundances. It also indicates how, for generalist predators, even the qualitative nature of predator dependence can be prey-specific. |
英文关键词 | Beddington-DeAngelis functional response consumer dependence food webs interaction modification interaction strengths mutual predator effects Nucella whelks per capita attack rates prey preference |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401552300007 |
WOS关键词 | INTERACTION STRENGTHS ; MUTUAL INTERFERENCE ; MODEL SELECTION ; PREY MODELS ; FOOD WEBS ; BODY-MASS ; COMMUNITY ; ECOLOGISTS ; PARASITES ; INTERACT |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31154 |
专题 | 资源环境科学 |
作者单位 | 1.Oregon State Univ, Dept Integrat Biol, 3029 Cordley Hall, Corvallis, OR 97331 USA; 2.Oregon State Univ, Dept Stat, Corvallis, OR 97331 USA; 3.Univ Maine, Sch Biol & Ecol, Orono, ME 04469 USA |
推荐引用方式 GB/T 7714 | Novak, Mark,Wolf, Christopher,Coblentz, Kyle E.,et al. Quantifying predator dependence in the functional response of generalist predators[J]. ECOLOGY LETTERS,2017,20(6). |
APA | Novak, Mark,Wolf, Christopher,Coblentz, Kyle E.,&Shepard, Isaac D..(2017).Quantifying predator dependence in the functional response of generalist predators.ECOLOGY LETTERS,20(6). |
MLA | Novak, Mark,et al."Quantifying predator dependence in the functional response of generalist predators".ECOLOGY LETTERS 20.6(2017). |
条目包含的文件 | 条目无相关文件。 |
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