نتایج جستجو برای: competitor threats

تعداد نتایج: 35518  

Journal: :Evolution; international journal of organic evolution 2016
Christopher H Martin

The adaptive landscape provides the foundational bridge between micro- and macroevolution. One well-known caveat to this perspective is that fitness surfaces depend on ecological context, including competitor frequency, traits measured, and resource abundance. However, this view is based largely on intraspecific studies. It is still unknown how context-dependence affects the larger features of ...

Journal: :Current Biology 2008
Nigel Williams

Many marine species beyond the glare of fishing quotas are in decline and no more so than in the Mediterranean.

2015
Gary T Poon Hafiz Maherali

The novel weapons hypothesis posits that biochemical compounds secreted by an invasive species facilitate its success by reducing the performance and survival of other species. This mechanism has been proposed to explain the widespread invasion of the biennial plant, Alliaria petiolata, in North America. Root exudates produced by A. petiolata, a nonmycorrhizal plant, suppress the growth of myco...

In this paper, regardless of the sanctions in the country, by examining the importance of time factor in starting development and harvesting operations from the common sample field, optimal production is estimated based on reservoir engineering equations and using Darcy equation and compressibility equation and solving mathematical model (maximizing NPV), three scenarios of cogeneration, earlie...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1984
D F Bowen-Pope A Vogel R Ross

A series of nontransformed human and murine cells and derivative cell lines transformed by methylcholanthrene; by simian virus 40, Kirsten and Moloney murine sarcoma viruses, simian sarcoma virus, and adenovirus; and by a "spontaneous" event in culture were examined for the expression of receptors for the platelet-derived growth factor (PDGF) and for production of substances able to compete wit...

Journal: :Applied and environmental microbiology 2014
Erik S Wright L Safak Yilmaz Andrew M Corcoran Hatice E Ökten Daniel R Noguera

Fluorescence in situ hybridization (FISH) is a common technique for identifying cells in their natural environment and is often used to complement next-generation sequencing approaches as an integral part of the full-cycle rRNA approach. A major challenge in FISH is the design of oligonucleotide probes with high sensitivity and specificity to their target group. The rapidly expanding number of ...

Journal: :Journal of cognitive neuroscience 2010
Giulia Righi Sheila E. Blumstein John Mertus Michael S. Worden

The present study investigated the neural bases of phonological onset competition using an eye tracking paradigm coupled with fMRI. Eighteen subjects were presented with an auditory target (e.g., beaker) and a visual display containing a pictorial representation of the target (e.g., beaker), an onset competitor (e.g., beetle), and two phonologically and semantically unrelated objects (e.g., sho...

Journal: :Journal of experimental psychology. Human perception and performance 2009
Robrecht P R D van der Wel Jeffrey R Eder Aaron D Mitchel Matthew M Walsh David A Rosenbaum

M. J. Spivey, M. Grosjean, and G. Knoblich showed that in a phonological competitor task, participants' mouse cursor movements showed more curvature toward the competitor item when the competitor and target were phonologically similar than when the competitor and target were phonologically dissimilar. Spivey et al. interpreted this result as evidence for continuous cascading of information duri...

Journal: :NeuroImage 2014
Emanuele Porcu Christian Keitel Matthias M. Müller

We investigated whether unattended visual, auditory and tactile stimuli compete for capacity-limited early sensory processing across senses. In three experiments, we probed competitive audio-visual, visuo-tactile and audio-tactile stimulus interactions. To this end, continuous visual, auditory and tactile stimulus streams ('reference' stimuli) were frequency-tagged to elicit steady-state respon...

Journal: :Journal of experimental psychology. Learning, memory, and cognition 2010
Anne Pier Salverda Michael K Tanenhaus

Two visual-world experiments evaluated the time course and use of orthographic information in spoken-word recognition using printed words as referents. Participants saw 4 words on a computer screen and listened to spoken sentences instructing them to click on one of the words (e.g., Click on the word bead). The printed words appeared 200 ms before the onset of the spoken target word. In Experim...

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