Results 81 to 90 of about 15,154 (219)
The introduced signal crayfish and native noble crayfish have different effects on sublittoral macroinvertebrate assemblages in boreal lakes [PDF]
Freshwater Biology, 2015 Summary We investigated differences in the abundance, community composition and taxon richness of sublittoral macroinvertebrates in boreal lakes containing introduced invasive signal crayfish (Pacifastacus leniusculus) or native noble crayfish (Astacus astacus).
Ruokonen, Timo +5 more
openaire +2 more sources
Ecology and Evolution, 2021 Biological invasions are a serious problem in natural ecosystems. Local species that are potential prey of invasive alien predators can be threatened by their inability to recognize invasive predator cues.
Andrzej Antoł, Szymon Sniegula
doaj +1 more source
Additional crayfish survey of Checkley Brook, Hollywood End Brook and Black Brook (Goyt) 1999 [PDF]
, 1999 This is the report on the Additonal Crayfish Survey of Checkley Brook, Hollywood End Brook and Black Brook from 1999 by the Environment agency. The aim of the 1999 survey was to obtain a more complete picture of the crayfish distribution in those areas.
core
Stochastic resonance in electrical circuits—I: Conventional stochastic resonance. [PDF]
, 1999 Stochastic resonance (SR), a phenomenon in which a periodic signal in a nonlinear system can be amplified by added noise, is introduced and discussed. Techniques for investigating SR using electronic circuits are described in practical terms.
Luchinsky, D. G. +3 more
core +1 more source
Assessing the Presence, Pattern, and Environmental Correlates of Seasonal Skin Thickening in Anurans
Integrative Zoology, EarlyView.Histological sections, like that of the ventral pectoral skin of Lithobates pipiens, were measured to assess variation in skin thickness throughout the year in three North American anuran species. After correcting for individual body size, we test whether skin thickness changes throughout the year and which factors (environment or life history) explain
Collin S. VanBuren +3 more
wiley +1 more source
Knowledge and Management of Aquatic Ecosystems, 2016 Management of invasive species requires assessment of their effects on recipient ecosystems. However, impact assessment of invasive species commonly lacks a long-term perspective which can potentially lead to false conclusions.
Ruokonen T. J. +2 more
doaj +1 more source
Noise-enhanced computation in a model of a cortical column [PDF]
, 2005 Varied sensory systems use noise in order to enhance detection of weak signals. It has been conjectured in the literature that this effect, known as stochastic resonance, may take place in central cognitive processes such as the memory retrieval of ...
Gerstner, Wulfram, Mayor, Julien
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Integrative Zoology, EarlyView.Juvenile Procambarus clarkii exposed to noise exhibited behavioral changes, shifts in enzymatic activity, and altered expression of stress and immune genes. The findings highlight the sensitivity of invertebrate juveniles to anthropogenic acoustic pollution.
Maria Ceraulo +8 more
wiley +1 more source
Shelter Occupancy by Mixed-Species Pairs of Native Signal Crayfish and Non-Native Red Swamp Crayfish Held in Enclosures [PDF]
Journal of Freshwater Ecology, 2009 ABSTRACT Sheltering ability does not appear to confer an advantage to non-native red swamp crayfish (Procambarus clarkil) in a small, western Washington lake where the invader outnumbers the native signal crayfish (Pacifastacus leniusculus.) When paired with similar-sized non-native P. clarkii, P.
Karl W. Mueller, Leo R. Bodensteiner
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The continuing spread of Pacifastacus leniusculus in Carinthia (Austria) [PDF]
Knowledge and Management of Aquatic Ecosystems, 2009 Crayfish plague and introductions of non-indigenous freshwater crayfish species (NICS) have had major consequences for the survival of autochthonous crayfish populations in Europe.
M. Weinländer, L. Füreder
doaj