Ecology. Oh the locusts sang, then they dropped dead.
نویسندگان
چکیده
منابع مشابه
Cannibalism can drive the evolution of behavioural phase polyphenism in locusts.
During outbreaks, locust swarms can contain millions of insects travelling thousands of kilometers while devastating vegetation and crops. Such large-scale spatial organization is preceded locally by a dramatic density-dependent phenotypic transition in multiple traits. Behaviourally, low-density 'solitarious' individuals avoid contact with one another; above a critical local density, they unde...
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In attempts to remove toxic metal lead, distinct types of algae biomass have been scrutinized as alternatives to conventional physicochemical technologies. In this research, the absorption of Lead by nanoalgae Scenedesmus sp. was studied at concentration of10 to 100 mg/L, pH 3 to 8, temperature 15 to 40 °C and exposure time of 10 to 60 minutes)in a batch culture system. The concentration of Le...
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Objective(s): To present a brief overview of various natural sources of antimicrobials with the aim of highlighting invertebrates living in polluted environments as additional sources of antimicrobials. Materials and Methods: A PubMed search using antibacterials, antimicrobials, invertebrates, and natural products as keywords was carried out. In addition, we consulted conference proceedings, or...
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A novel model derived from percolation theory suggests that phase polyphenism may have initially evolved in locusts as a behavioural strategy to reduce the connectivity between patches of vulnerable prey, so reducing predation risk.
متن کاملPhenotypic Transformation Affects Associative Learning in the Desert Locust
In desert locusts, increased population densities drive phenotypic transformation from the solitarious to the gregarious phase within a generation [1-4]. Here we show that when presented with odor-food associations, the two extreme phases differ in aversive but not appetitive associative learning, with solitarious locusts showing a conditioned aversion more quickly than gregarious locusts. The ...
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عنوان ژورنال:
- Science
دوره 306 5701 شماره
صفحات -
تاریخ انتشار 2004