نتایج جستجو برای: alarm limits

تعداد نتایج: 132568  

2017
K Zuberbühler

Animals commonly vocalize when threatened by a predator. These signals, usually termed alarm calls (from old Italian all arme ‘to arms’ on the approach of an enemy), have continued to bewilder and fascinate for a number of reasons, the first of which is mainly practical. In animal research, it is often difficult to break down the continuous behavioral stream into discrete and meaningful units, ...

Journal: :The Journal of experimental biology 2008
Shkelzen Shabani Michiya Kamio Charles D Derby

When attacked by predators, diverse animals actively or passively release molecules that evoke alarm and related anti-predatory behavior by nearby conspecifics. The actively released molecules are alarm pheromones, whereas the passively released molecules are alarm cues. For example, many insects have alarm-signaling systems that involve active release of alarm pheromones from specialized gland...

2016
Dustin Rubenstein Maurice W Sabelis Denis Meuthen Sebastian A Baldauf Timo Thünken

The evolution of alarm signals has puzzled evolutionary ecologists for decades. This is particularly true for alarm cues (‘Schreckstoff’) which are present in many fishes. They are passively released through injuries and signal the presence of a predator. Although the benefits for conspecific receivers are obvious (they can adjust their behavior to avoid predation), those for the senders are no...

Journal: :Journal of safety research 2006
John E Parmer Phaedra S Corso Michael F Ballesteros

INTRODUCTION While smoke alarm installation programs can help prevent residential fire injuries, the costs of running these programs are not well understood. METHOD We conducted a retrospective cost analysis of a smoke alarm installation program in 12 funded communities across four states. Costs included financial and economic resources needed for training, canvassing, installing, and followi...

2011
Antonio Lanorte Rosa Lasaponara

Satellite remote sensing can successfully cope with different aspects of fire management problems, such as danger estimation, fire detection, burned area mapping and post-fire vegetation recovery. In particular, remote sensing can provide valuable data on type (namely distribution and amount of fuels) and status of vegetation in a consistent way at different spatial and temporal scales. The cha...

2010
Yingning Qiu Paul RICHARDSON Yanhui FENG

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2009
Kai Huang

.................................................................................................................. 2 Chapter One: Introduction ................................................................................... 6 Residential Fire and Fire Causes in the U.S ................................... 6 Overview of Residential Fire in the U.S .................................................

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