Sökning: "Bosmina"

Hittade 2 avhandlingar innehållade ordet Bosmina.

1. 1. Fingerprints of planktivory : paleolimnological evidence of past fish community structure and dynamics

   Författare :Emma Åhlén; Marko Reinikainen; Tom Korsman; Pär Byström; Timo Kairesalo; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; planktivory; foraging efficiency; cladoceran remains; Bosmina; planktivore community capacity; PCC; Ceriodaphnia; reserrection; zooekologi; Animal Ecology;

   Sammanfattning : Planktivorous fish affect the species composition, size and morphology of their zooplankton prey by size selective predation. Remains of cladocerans are deposited in the lake sediments and this microfossil community hence reflects the historical changes in the planktivore fish community. LÄS MER

3. 2. Morphological antipredator adaptations in water fleas

   Författare :Hans Lord; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Body drag; Daphnia cristata; Reynolds number; viscosity; zooplankton; Bosmina; swimming velocity; cyclomorphosis; sexual dimorphism; head area; helmet angle; trophic condition; allometry; invertebrate predator; fish;

   Sammanfattning : Some Bosmina and Daphnia species have the ability to develop extreme morphological antipredator defences, such as long antennules, high carapaces and helmets. The relative sizes of these plastic traits may differ substantially between populations, and also between individuals within a population, between sexes and during ontogeny. LÄS MER