English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The effect of food concentration on the phenotypic response of life history traits to two predator kairomones war investigated in Daphnia. For the experiment, one clone of Daphnia galeata war used as the prey organism and solutions containing infochemicals (kairomones) of Chaoborus (phantom midge) and Perca (perch) simulated the presence of potential predators. The combined effect of food level and predator kairomone on phenotypic plasticity of Daphnia life history is complex. At low food levels, the responses in life history traits to kairomones are enhanced. For example, in the Perca treatment, this leads to a younger age at first reproduction, The presence of Chaoborus kairomone decreases survival so that death often occurs before reproduction is reached. This results in a strong decrease in the intrinsic rate of population increase and might contribute to the pronounced summer decline of some Daphnia populations during periods of food shortage. KeyWords Plus

Interactions Between Predator Kairomone and Food Level Complicate the Ecological Interpretation of Daphnia Laboratory Results