• Publications
  • Influence
The Freshwater Animal Diversity Assessment: an overview of the results
The diversity and distribution of vertebrates, insects, crustaceans, molluscs and a suite of minor phyla is compared and commented upon and it is shown that data are deficient for many other groups. Expand
Body size and dispersal mode as key traits determining metacommunity structure of aquatic organisms.
The results reveal that body size and dispersal mode are important drivers of metacommunity structure and these traits should therefore be considered when developing a predictive framework for metacomunity dynamics. Expand
Global diversity of ostracods (Ostracoda, Crustacea) in freshwater
The present ostracod diversity results from 9 to 12 separate invasions of the non-marine habitat, starting about 400 Myr ago, which means that all the biological mechanisms which lead up to efficient dispersal have not induced common cosmopolitan distributions in ostracods. Expand
Speciation in ancient lakes.
  • K. Martens
  • Biology, Medicine
  • Trends in ecology & evolution
  • 1 May 1997
No special speciafion mechanism, exclusive to ancient lakes has been demonstrated, although cases of ultra-rapid speciation have been documented. Expand
Taxonomic revision of the recent and holocene representatives of the Family Darwinulidae (Crustacea, Ostracoda), with a description of three new genera
It is demonstrated that a systematic revision of an ancient asexual lineage can lead to a taxonomy which at the same time reflects natural phylogeny and is workable, i.e. is based on recognisable taxa. Expand
Lost sex : the evolutionary biology of parthenogenesis
Asexual Reproduction in Infectious Diseases and the Elusive Clone - In Search of Its True Nature and Identity. Expand
Ecological characteristics of small farmland ponds: Associations with land use practices at multiple spatial scales
Abstract Despite their restricted surface area, small farmland ponds often have a high conservation value because they contribute significantly to regional biodiversity and contain rare or uniqueExpand
Taxonomy, Morphology and Biology of Quaternary and Living Ostracoda
The morphology, taxonomy, ontogeny and life histories of ostracods are reviewed and illustrated, paying attention to limbs as well as carapaces (hard parts), with emphasis on the Order Podocopida as the group most likely to be encountered in Quaternary deposits. Expand
Effects of genotype and environment on phenotypic variability in Limnocythere inopinata (Crustacea: Ostracoda)
It is concluded that L. inopinata is a variable, polymorphic species, consisting of a (semi-) continuous morphological cluster, in which both clonal genotypes and sexual haplotypes are nested. Expand
Effects of landscape Disturbances on Animal Communities in Lake Tanganyika, East Africa
A video signal processing circuit uses a buffer memory for reducing or expanding video signals in the generation of child images to be displayed within a display window to prevent different image reduction ratios which might otherwise occur when the reduction ratio is changed. Expand