Author: Douglas Campbell FergusonPublisher:
ISBN:
Category : Lepidoptera
Languages : en
Pages : 112
Book Description
The Lepidoptera of Bermuda
Author: Douglas Campbell FergusonPublisher:
ISBN:
Category : Lepidoptera
Languages : en
Pages : 112
Book Description
Botanical Research and Management in Galapagos
Author: J. E. LawessonPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 332
Book Description
Revue Suisse de zoologie
Author: Dispersal Centres of Sphingidae (Lepidoptera) in the Neotropical Region
Author: H. SchreiberPublisher: Springer Science & Business Media
ISBN: 9400999607
Category : Science
Languages : en
Pages : 204
Book Description
The term 'dispersal centre' literally refers to the place from which a dispersal process started. However, it also implies the location of a centre of diversity, frequently even a recent one, as well as the location of a preservation centre or refuge during regressive phases in less remoted periods of earth's history, and that of a possible speciation centre. The latter may have been the place of differentia tion of subspecies, or species, provided that the isolation period has been suffi ciently long. The term deliberately brings the dynamics to prominence which is inherent in the process of dispersal. This dynamics is neither properly recognized when considering ranges 'whose recent structures more or less force us to consider them ,as static entities' (DE LATTIN 1967, p. 16)*, nor adequately taken into account by systematic typology. Yet, it is, in fact, the change that takes place in a range, which is of great significance in evolutionary genetics. In the case of range regressions which may lead to a diminution or rupture of the range pattern according to the pressure of the endogenous or exogenous triggering factors, subsequently arising distribution obstacles may result in a geographical isolation of partial populations or popula tion parts. Their sufficiently long spatial and reproductive isolation and the allele loss resulting from the change of the population size promote a divergent develop ment.
Contributions in Science
Author: Record of Zoological Literature
Author: The Record of Zoological Literature
Author: Memoirs of the Entomological Society of Canada
Author: The Noctuoid Moths of the Galapagos Islands from the Collections of the Allan Hancock Foundation
Author: Albert Glenn RichardsPublisher:
ISBN:
Category : Bulia
Languages : en
Pages : 52
Book Description
The Zoological Record
Author: Publisher:
ISBN:
Category : Classification
Languages : en
Pages : 1368
Book Description
Indexes the world's zoological and animal science literature, covering all research from biochemistry to veterinary medicine. The database provides a collection of references from over 4,500 international serial publications, plus books, meetings, reviews and other no- serial literature from over 100 countries. It is the oldest continuing database of animal biology, indexing literature published from 1864 to the present. Zoological Record has long been recognized as the "unofficial register" for taxonomy and systematics, but other topics in animal biology are also covered.