Now showing items 21-30 of 61
Environmental change and atmospheric contamination on Svalbard: sediment chronology
Sediment cores collected from eight lakes along the western coast of Svalbard as part of a project investigating atmospheric pollution and environmental change in Arctic regions were dated radiometrically using natural ...
Treeline and vegetation dynamics in response to environmental changes in Nepal, the central Himalaya
(The University of Bergen, 2013-05-31)
Aims: To describe and evaluate patterns of vegetation response to ongoing environmental changes across climate-limited (alpine treeline ecotone) and humanmodified (temperate Himalayan oak forests) ecosystems in Nepal, ...
Breeding system, insect flower visitation, and floral traits of two alpine cerastium species in Norway
(The Institute of Arctic and Alpine Research, 1999)
The pollination and reproductive ecology of Saxifraga stellaris was investigated in alpine southwest Norway. A breeding system analysis, with performance of controlled crosses, revealed that S. stellaris is self-compatible ...
Period lenght in cyclic animal populations
(Ecological Society of America, 2005)
Although cyclic animal dynamics have long been a focus of scientific interest, the variable cycle lengths are poorly understood. Based on a review of the literature, we suggest that period length in animals showing ...
An experiment to improve scientific communication skills amongst Norwegian students
(Program for læringsforskning, Universitetet i Bergen, 2006)
Hilary Birks summerer opp 15 års erfaring med en student-/stipendiat-/postdoc-/ kollegagruppe på Botanisk institutt. Hver 3. uke har de hatt lunsjmøter med faglige presentasjoner og livlige diskusjoner på engelsk. Hun ...
Distinguishing the roles of dispersal in diversity maintenance and in diversity limitation
(Opulus Press, 2005-07)
In recent years, a considerable research effort has gone into studying how dispersal might affect the diversity of local communities. While this general topic has received attention from theoretical and empirical ecologists ...
Palaeolimnological responses of nine North African lakes in the CASSARINA Project to recent environmental changes and human impact detected by plant macrofossil, pollen, and faunal analyses
This paper presents multi-proxy palaeolimnological analyses from recent sediments in the nine CASSARINA lakes in northernmost Africa, three from each of Morocco, Tunisia, and Egypt. The lakes are diverse, ranging from ...
North African wetland lakes: characterization of nine sites included in the CASSARINA Project
Exploitation of land and water resources has increased rapidly in North Africa during the 20th century, paralleling regional population growth. As part of the CASSARINA Project (see Flower, 2001), the environmental status ...
What is the observed relationship between species richness and productivity? Comment
(Ecological Society of America, 2003)
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record
As part of a broader investigation into recent environmental change on Svalbard, the inorganic geochemical record of six lake-sediment cores was analysed. The major temporal trends in sediment elemental composition are ...