نتایج جستجو برای: predatory species
تعداد نتایج: 551736 فیلتر نتایج به سال:
The strength of interference between foraging individuals can influence per capita consumption rates, with important consequences for predator and prey populations and system stability. Here we demonstrate how the replacement of a previously established invader, the predatory crab Carcinus maenas, by the recently invading predatory crab Hemigrapsus sanguineus shifts predation from a species tha...
Research on coursing predators has revealed that actions throughout the predatory behavioral sequence (using encounter rate, hunting rate, and kill rate as proxy measures of decisions) drive observed prey preferences. We tested whether similar actions drive the observed prey preferences of a stalking predator, the African lion Panthera leo. We conducted two 96 hour, continuous follows of lions ...
Climate warming can destabilize interactions between competitors as smaller organisms gain advantages in warmer environments. Whether and how warming-induced effects on competitive interactions are modified by predation remains unknown. We hypothesized that predation will offset the competitive advantage of smaller prey species in warmer environments because of their greater vulnerability to pr...
The 1960s represent an important chapter in U.S. business history, partly because they ushered in a new tactic of corporate combination-the predatory takeover Predatory takeovers not only facilitate the restructuring of corporate enterprises, they also alter the internal structure of the business elite. We explore the factors that led large corporations to be acquired through friendly and preda...
Commercial fishers have used fish aggregating devices throughout the Mediterranean Sea for over 40 years. These devices attract numerous predatory and forage species in both coastal and offshore environments. This study examined the influence of fish aggregating devices on schooling and aggregating behaviour by small forage fish in quasi-natural mesocosms. Anti-predator behaviour was evaluated ...
The diversity and community structure of arthropods in an organic double-cropped rice ecosystem in Guangdong Province, China was studied. We compared the arthropod communities in the early season (Apr-Jul) crop to those in the late season (Aug-Nov) crop in 2009. The comparisons were undertaken using a combination of community assessment approaches, including morphospecies richness, the Shannon-...
Predatory journals exploit open access publication method; they do not carry out the peer review process and editorial assessment properly and publish unassessed articles for financial gain. According to a recent investigation published in the Lancet Psychiatry Journal, about 20% of authors or co-authors of articles published in predatory psychiatric journals have been Iranian. This substantial...
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