Does tethering of mobile prey measure relative predation potential? An empirical test using mummichogs and grass shrimp
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چکیده
منابع مشابه
Benthic ecologists employ a variety of experimental protocols to measure pattern and process in marine
Benthic ecologists employ a variety of experimental protocols to measure pattern and process in marine communities. Each method has its strengths and weaknesses, and the weaknesses in particular must be understood if results are to be interpreted correctly. For example, while mesocosm studies allow researchers to manipulate biological interactions in ways that would be impossible in the field, ...
متن کاملDiel variation in predator abundance, predation risk and prey distribution in shallow-water estuarine habitats
Predation by visual predators is often affected by light conditions and may therefore exhibit strong diel variation. The dominant predators on grass shrimp, Palaemonetes pugio, are finfish predators that are thought to locate their prey by visual cues. We examined the response of grass shrimp to diel variation in predation risk in the nearshore shallow waters of the Chesapeake Bay. We used diel...
متن کاملan investigation into translation of cultural concepts by beginner and advance student using think – aloud protocols
this research aims at answering the questions about translation problems and strategies applied by translators when translating cultural concepts. in order to address this issue, qualitative and quantitative study were conducted on two groups of subjects at imam reza international university of mashhad. these two groups were assigned as beginner and advanced translation students (10 students). ...
Does Sex-Selective Predation Stabilize or Destabilize Predator-Prey Dynamics?
BACKGROUND Little is known about the impact of prey sexual dimorphism on predator-prey dynamics and the impact of sex-selective harvesting and trophy hunting on long-term stability of exploited populations. METHODOLOGY AND PRINCIPAL FINDINGS We review the quantitative evidence for sex-selective predation and study its long-term consequences using several simple predator-prey models. These mod...
متن کاملRelative growth rates of predator and prey dinosaurs reflect effects of predation.
Hadrosaurs grew rapidly, and quantifying their growth is key to understanding life-history interactions between predators and prey during the Late Cretaceous. In this study, we longitudinally sampled a sequence of lines of arrested growth (LAGs) from an essentially full-grown hadrosaur Hypacrosaurus stebingeri (MOR 549). Spatial locations of LAGs in the femoral and tibial transverse sections of...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2000
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps198181