منابع مشابه
Managing manure and conserving predators helps control flies in caged-layer poultry systems
Poultry manure supports the development of several serious fly pests (Axtell and Arends 1990). Fresh manure is rich in nutrients and is produced at the rate of one-quarter pound per hen per day, providing an ideal habitat for fly larvae to live and feed. The problem has become more acute in modern high-density poultry housing where manure often is concentrated in piles below the birds. The hous...
متن کاملCumulative human impacts on marine predators.
Stressors associated with human activities interact in complex ways to affect marine ecosystems, yet we lack spatially explicit assessments of cumulative impacts on ecologically and economically key components such as marine predators. Here we develop a metric of cumulative utilization and impact (CUI) on marine predators by combining electronic tracking data of eight protected predator species...
متن کاملImpact of coral predators on tropical reefs
It is well known that herbivores have numerous and diverse impacts on plant and algal fitness, community structure and ecosystem function. The importance of corallivory as a selective force, however, has been underestimated. Corallivores, or consumers of live coral tissue, employ a wide variety of feeding strategies and can be obligate or facultative coral feeders. Our literature review reveals...
متن کاملThe effect of turbidity on recognition and generalization of predators and non-predators in aquatic ecosystems
Recent anthropogenic activities have caused a considerable change in the turbidity of freshwater and marine ecosystems. Concomitant with such perturbations are changes in community composition. Understanding the mechanisms through which species interactions are influenced by anthropogenic change has come to the forefront of many ecological disciplines. Here, we examine how a change in the avail...
متن کاملBacterial predators
Who would be at your ideal conference? I’d love to be marooned on a desert island (with whiteboards, or at least a smooth sandy beach to scribble on) with Michael Lynch, Ralph Greenspan, Norbert Perrimon, John Mattick, Michael Wade, Thomas Whitham, Sara Via and Allen Moore. Perrimon, Mattick and Greenspan each have their own unique perspectives on how complex gene networks might work, while Whi...
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ژورنال
عنوان ژورنال: Oryx
سال: 1973
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300011546