Übersetzung für "Adaptive radiation" in Deutsch

The ants began to prevail at the very beginning of the Tertiary period, after adaptive radiation.

The therapy is also known as image-guided radiation therapy or adaptive radiation therapy (ART).

The "Anolis" lizards of Puerto Rico, and the Greater Antilles in general, represent an interesting case of adaptive radiation.

2: In recent times, the threespine stickleback (Gasterosteus aculeatus) has undergone adaptive radiation, evolving from the typical marine ecotype (red) into freshwater ecotypes (blue) with a number of different shapes.

The genus Damon underwent an extensive adaptive radiation and it is assumed that its origin lays in the West African rainforests.

The hypothesis is that the insensibility to the toxicity of the spurge poison represents a key character in the adaptive radiation of the genus.

In the skies, Pterosaurs were common in the early and middle Cretaceous, but as the Cretaceous proceeded faced growing competition from the adaptive radiation of birds.

The adaptive radiation of this small fish provides numerous biological replicates and essential insight into molecular changes that enable organisms to colonise new environments quickly and to rapidly adapt to and survive in their new habitat.

This can be related to results from recent experiments on adaptive radiation in bacterial microcosms.

It is supposed that a major part of the adaptive radiation of the Phrynichidae occurred preceding the separation of the Gondwana land masses and that the present geographical distribution of the Phrynidae and the genus Trichodamon in South America and that of the Phrynichidae in Africa and Asia is due to the separation of South America and Africa.

One might argue that the chosen example was too close-meshed in its meaningfulness and that the "adaptive radiation", the unfolding to different habitats by adaptation, for which the example stands, is not the only way of evolutionary explanation.

Marine sticklebacks have undergone an adaptive radiation with freshwater forms evolving repeatedly and independently at many different places.

In regard to the evolutionary development of 'modern' cichlids from Lake Tanganyika and in accordance with the hybrid swarm theory, the research team discovered that a cichlid species from the Lower Congo River reached the lake and interbreed with their lake ancestors, thereby facilitating the adaptive radiation of the cichlids in Lake Tanganyika.

Second, results suggest that the abyss has sustained adaptive radiation, and is not primarily a sink for non-reproductive nematode individuals derived from slope habitats.

The subfamily Heterophryninae with the only genus Heterophrynus undergone its adaptive radiation in northern South America (Weygoldt, 2000).

Now, for the first time ever, fish ecologists at Eawag have been able to observe the onset of such speciation – or adaptive radiation, as it is known – almost in real time.

In a timespan that - in evolutionary terms - amounts to a blink of an eye, this species has undergone adaptive radiation: individuals ventured into new environments and adapted to the conditions there.

It is also possible to provide an adapted location-dependent radiation characteristic of the image generator in terms of intensity.

The mass distribution of lens element 27 is thus ideally adapted to the radiation characteristic of radiation source means 11 .

Preferably, electromagnetic radiation, adapted by a priori knowledge, with a comb spectrum is supplied to the two beam interferometer.

For the solution indicated, aspherical refractive surfaces are selected in order to minimize the aperture errors of the two lenses forming a biconvex element which rest against each other in the immersion contact and thus to assure a sufficiently punctiform imaging of the light-guide end surfaces with an aperture which is adapted to their radiation characteristic.

Due to this shape of the channel cross-section, and the dimensions thereof, a precise adaptation of the radiation channel to the radiation source is possible, so that independently of the shape of the radiation source the background radiation can be reliably masked out.

The invention relates to a method and a device for adapting a radiation dose of an X-ray source (1).

The invention relates to a method for adapting the radiation dose of an X-ray source which irradiates an object to be examined so as to form an X-ray image of the object.

The method is intended to adapt the radiation dose of an X-ray source which irradiates an object to be examined, for example, the body of a patient, thus producing an X-ray image of the object.