Results 81 to 90 of about 158,419 (221)

A Note on Species Lists and Ecosystem Shifts: Black Sea Tintinnids, Ciliates of the Microzooplankton

open access: yes, 2007
International audienceWe investigated tintinnid (planktonic ciliate protists) in the Black Sea, a system which has undergone marked changes. Obvious shifts in the Black Sea began with eutrophication from the 1960's to the 1980's, followed by blooms of ...
Dolan, John, Gavrilova, Nelly
core   +1 more source

Metachronal waves in a chain of rowers with hydrodynamic interactions [PDF]

open access: yes, 2010
Filaments on the surface of a microorganism such as Paramecium or Ophalina beat highly synchronized and form so-called metachronal waves that travel along the surfaces.
Stark, Holger, Wollin, Christopher
core   +2 more sources

Bees in the Neighborhood: Best Practices for Urban Beekeepers [PDF]

open access: yes, 2018
The media coverage of the peril of pollinators has led to the general public wanting to help bees in particular. Public awareness about pollinator importance and the growing interest in urban beekeeping has led many local and municipal governments across
Bolshakova, Virginia Lj, Niño, Elina L
core  

Cruise Report R.V. Alkor Cruise No. AL499, 14.08. – 25.08.2017 [PDF]

open access: yes, 2017
Port Calls: Gdynia, Poland: 19.08.
Jaspers, Cornelia
core   +1 more source

Linking human well-being and jellyfish: Ecosystem services, impacts, and societal responses [PDF]

open access: yes, 2015
William H. Graham et al.© The Ecological Society of America. Jellyfish are usually perceived as harmful to humans and are seen as >pests>. This negative perception has hindered knowledge regarding their value in terms of ecosystem services.
Condon, Robert H.   +2 more
core   +1 more source

Farm bee-keeping [PDF]

open access: yes, 1915
Cover ...
Haseman, Leonard, 1884-1969   +1 more
core   +1 more source

Recipe for a Busy Bee: MicroRNAs in Honey Bee Caste Determination

open access: yes, 2015
Social caste determination in the honey bee is assumed to be determined by the dietary status of the young larvae and translated into physiological and epigenetic changes through nutrient-sensing pathways.
Chen, Runsheng   +11 more
core   +1 more source

When a Fish is a Fish: The Economic Impacts of Escaped Farmed Fish [PDF]

open access: yes
The escape of cultured fish from a marine aquaculture facility is a type of biological invasion that may lead to a variety of potential ecological and economic effects on native fish. This paper develops a general invasive species impact model to capture
Anders Skonhoft   +2 more
core  

Experimental feeding rates of gelatinous predators Aurelia aurita and Mnemiopsis leidyi at low northern Baltic Sea salinity [PDF]

open access: yes, 2012
The effect of the northern Baltic Sea\u27s low salinity on feeding rates of a native scyphozoan Aurelia aurita and a recent invader to southern Baltic Sea, ctenophore Mnemiopsis was investigated experimentally. Incubations with Acartia spp. prey (4.19-25.
Granhag, Lena   +3 more
core  

Brood comb as a humidity buffer in honeybee nests [PDF]

open access: yes, 2018
Adverse environmental conditions can be evaded, tolerated or modified in order for an organism to survive. During their development, some insect larvae spin cocoons which, in addition to protecting their occupants against predators, modify microclimatic ...
Crewe, Robin   +3 more
core  

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