Taking a tougher stance against predation
on minors, video-sharing site YouTube announced that it will delete unwanted comments and videos that promote child endangerment.
2007), or life history (Covich and Crowl, 1990; Fraser and Gilliam, 1992; Li and Jackson, 2005) in response to predation
risk to reduce their chances of being consumed.
Through this mechanism, copulation could lead to increased energetic costs to locomotion and thermoregulation as well as to increased mortality via predation
(Lima and Dill, 1990; Magnhagen, 1991; Fairbairn, 1993).
Does this link, if it exists, influence the rate of predation
of various species?
specifically on juvenile intertidal invertebrates can also substantially impact population dynamics and influence community structure.
Stream fishes that occupy different predation
environments are frequently used to understand how behavior evolves in different predation
environments (Seghers, 1974; Magurran, Seghers, Carvalho, & Shaw, 1992; Kelley & Magurran, 2003; Archard & Braithwaite, 2011a, b; Archard, Earley, Hanninen, & Braithwaite, 2012).
Such shifts in the abundance of largemouths have occurred in many northern Wisconsin lakes, leading researchers to investigate diet overlap and predation
between largemouths and walleyes.
For example, the seminal study by Bolton and Scharfstein (1990) shows that a firm with financial constraints, which emerge endogenously to reduce agency problems, is subject to predation
For many animals, predation
on eggs or offspring is a major cause of reproductive failure.
Furthermore, numerous studies have demonstrated that herbivores decrease foraging activity in response to elevated predation
risk (Brown and Kotler 2004, Willems and Hill 2009, McArthur et al.
Abstract--Recent acoustic tagging of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the southern portion of California's Sacramento-San Joaquin Delta has revealed extremely low survival rates (<1%), possibly due to predation
by piscivorous fishes.
Key words: Alaska, Bald Eagle, Haliaeetus leucocephalus, Odocoileus hemionus sitkensis, predation
, Sitka Black-Tailed Deer, Tongass National Forest