Results 21 to 30 of about 4,081 (214)

Diel vertical migration patterns in two populations of Chaoborus flavicans larvae (Diptera: Chaoboridae) in response to fish kairomones

open access: yesJournal of Limnology, 2008
Diel vertical migration (DVM) of larvae of the phantom midge Chaoborus flavicans (Diptera: Chaoboridae) inhabiting a fishless pond and a fish-abundant lake (Lake Nakanuma) was studied in the field and in the laboratory.
Takayuki HANAZATO, Shigeto ODA
doaj   +1 more source

The biostratigraphical history of Lake Otalampi in southern Finland, with special reference to the remains of subfossil midge fauna [PDF]

open access: yesBulletin of the Geological Society of Finland, 1969
The biostratigraphical history of a small lake Otalampi in southern Finland has been studied. The remains of subfossil Bosmina have been analysed and the biostratigraphy of the larvae of lacustrine Diptera has now been applied in Finnish palaeolimnology.
P. Alhonen, M.-L. Haavisto
doaj   +1 more source

Experiments on invertebrate predation on cladocerans and its relationships with lake data

open access: yesJournal of Limnology, 2021
Until recently, knowledge of the impact of invertebrate predators on cladocerans in the Brazilian Lake Monte Alegre was limited to a few species. In order to assess the effects of predation on other cladoceran species, experiments were carried out with ...
Tânia C. dos Santos Ferreira   +1 more
doaj   +1 more source

Population dynamics of Chaoborus flavicans and Daphnia spp.: effects on a zooplankton community in a volcanic eutrophic lake with naturally high metal concentrations (L. Monticchio Grande, Southern Italy)

open access: yesJournal of Limnology, 2009
The response of Daphnia populations to invertebrate predators involves morphological or behavioural changes. Few studies suggest that contaminant aqueous metals, like Cu or Ni at environmentally relevant concentrations, interfere with invertebrate ...
Letizia GARIBALDI, Barbara LEONI
doaj   +1 more source

Change in phenotypic plasticity of a morphological defence in Daphnia galeata (Crustacea: Cladocera) in a selection experiment

open access: yesJournal of Limnology, 2007
Some water fleas Daphnia change their head morphology to reduce predation risk in response to chemical substances (kairomones) released from larvae of the invertebrate predator Chaoborus (Insecta: Diptera).
Koichi FUJII   +2 more
doaj   +1 more source

Clouds, shadows, or twilight? Mayfly nymphs recognise the difference [PDF]

open access: yes, 2006
1. We examined the relative changes in light intensity that initiate night-time locomotor activity changes in nymphs of the mayfly, Stenonema modestum (Heptageniidae).
Allan J.D.   +29 more
core   +3 more sources

Some aspects of prey capture by Chaoborus larvae1 [PDF]

open access: yesLimnology and Oceanography, 1975
The effects of prey size, shape, and locomotion on capture, ingestion, and handling time were investigated in second‐, third‐, and fourth‐instar larvae of Chaoborus americanus and Chaoborus trivittatus from Eunice Lake, British Columbia. Before contact, densities and swimming speeds of predators and prey determine the number of interactions and hence ...
Michael C. Swift, Alice Y. Fedorenko
openaire   +1 more source

PHYLOGENETICS OF POND AND LAKE LIFESTYLES IN CHAOBORUS MIDGE LARVAE [PDF]

open access: yesEvolution, 2003
Aquatic invertebrates experience strong trade-offs between habitats due to the selective effects of different predators. Diel vertical migration and small body size are thought to be effective strategies against fish predation in lakes. In the absence of fish in small ponds, migration is ineffective against invertebrate predators and large body size is
Berendonk, T.   +2 more
openaire   +3 more sources

Neckteeth formation in two species of the Daphnia curvirostris complex (Crustacea: Cladocera)

open access: yesJournal of Limnology, 2011
Cladocerans of the genus Daphnia show different morphological adaptations against invertebrate predation. Among those, the formation of neckteeth has attracted substantial attention. Morphotypes exhibiting neckteeth better resist predation from larvae of
Petr Jan JURAČKA   +2 more
doaj   +1 more source

Specific Turbulence- and Chaoborus-Induced Morphotypes Affect the Streamlining Properties of Daphnia cucullata

open access: yesFrontiers in Ecology and Evolution, 2022
Inducible defenses are a wide-spread defensive mechanism in Daphnia. For example, D. cucullata is known to form different adaptive morphologies under changing environmental conditions.
Martin Horstmann   +2 more
doaj   +1 more source

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