Genes and biogeographers incorporating a genetic perspective into biogeographical research
The A. provides an overview and assessment of how geographers could potentially incorporate a genetic perspective into biogeographical research focused on past, present, and likely future species distributions. This effort is especially timely
Tree-limit stress and disturbance. A 25-year survey of geoecological change in the Scandes Mountains of Sweden
Biogéographie ; Changement global ; Déflation éolienne ; Ecotone ; Forêt ; Gel du sol ; Géo-écologie ; Limite supérieure de la forêt ; Montagne ; Périglaciaire ; Refroidissement climatique ; Suède ; Variabilité climatique
This paper reviews various kinds of geoecological change in the tree-limit ecotone of the Scandes Mountains during the period 1970-95. The focus of the study is a part of a regional network of sites intended for long-term tree-limit monitoring
climate change and biogeographical records over the past few decades.
Some results of biogeographic research on meadows in the Dyje-Svratka Basin in the Czech Republic
This paper shows one example of biogeographic inventory of natural ecosystems in an unflooded meadow in the Dyje-Svratka basin. It indicates relations of eco- and geosystems which confirm the necessity of ecological orientation of the present
Examples of the use of molecular markers in biogeographic research
After a brief overview of selected molecular markers, the AA. discuss lines of biogeographic inquiry involving genetic analyses where geographers can potentially make the greatest contribution. Examples from their own genetically-based biogeographic
north-south and species with larger ranges tend to be elongated east-west. This pattern is likely a result of species with small ranges being limited by local north-south-trending topography and species with large ranges being limited by major east-west
-oriented climatic zones, and is not merely an artifact of Rapoport's rule. Now, an explicit measure of range shape exists to compare to other biogeographical characteristics.
Differentiation of Europe's mammal fauna against a background of biogeographical units, the area of units and mammalian taxonomic richness
This analysis considered the relationship between the occurrence of mammals and geographical location in Europe, as well as the size of biogeographical units. It was found that there was differentiation in the qualitative composition of the mammal
Vegetation disturbance-responses : a biogeographical perspective I
végétation à ces perturbations?| et 3) quelle perspective les biogéographes doivent-ils apporter pour étudier les perturbations et les réactions de la végétation? - (C. Risi).
Using the ISI Web of Science journal article database, the A. has performed content visualizations of research authored by those biogeographers with an identity or interest aligned with geography. Content affinities with ecological biogeography were
strong. However, physical geography materialized as the core of biogeographical inquiry for geographers based upon the central location of physical geography within these visualizations, and upon the ranking of journals where the geographers publish
. The A. argues that the systems legacy of physical geography provides geographical biogeographers with an identity to connect with the study of complex systems.
Back to the future : biogeographical responses to climate change
upon to provide a key to the future. Back to the future has become a working methodology. But with global warming now quite well advanced, it is now possible to observe its actual biogeographic outcomes.
Explanations for biogeographic tracks across the Pacific Ocean: a challenge for paleogeography and historical biogeography
Amphi-Pacific organismal distributions form the ingredients of trans-Pacific biogeographic tracks, which may either be explained as the result of dispersal or vicariance. Under a vicariance paradigm the classical predrift reconstruction of Pangea
, and the expanding earth theory. None of these models is fully compatible with all geologic and biogeographic data available at present.