Results 41 to 50 of about 4,160,848 (334)

Notes on Norwegian marine Amphipoda. 10. Scavengers and fish associates

open access: yesFauna Norvegica, 1985
The dominant group of carrion-eating amphipods in Norway are the Lysianassoidea; they play an important role as scavengers in Norwegian and arctic waters. A number of genera damage fish caught in nets and on long-lines; in Norway the most serious damage
Wim Vader, Kirsi Romppainen
doaj   +1 more source

Species assembly in model ecosystems, II: Results of the assembly process [PDF]

open access: yes, 2010
In the companion paper of this set (Capitan and Cuesta, 2010) we have developed a full analytical treatment of the model of species assembly introduced in Capitan et al. (2009).
Bastolla   +30 more
core   +6 more sources

Construction, stochastization and computer study of dynamic population models “two competitors - two migration areas”

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2023
When studying deterministic and stochastic population models, the actual problems are the formalization of processes, taking into account new effects caused by the interaction of species, and the development of computer research methods.
I. I. Vasilyeva   +3 more
semanticscholar   +1 more source

First record of gooseneck barnacles Conchoderma auritum on a minke whale Balaenoptera acutorostrata

open access: yesFauna Norvegica, 1986
Clusters of a stalked barnacle, identified as Conchoderma auritum were found attached to both damaged and complete baleen plates of a male minke whale caught off the coast of East Greenland on 16 July 1984.
Ivar Christensen
doaj   +1 more source

Divergent drivers of leaf trait variation within species, among species, and among functional groups. [PDF]

open access: yes, 2018
Understanding variation in leaf functional traits-including rates of photosynthesis and respiration and concentrations of nitrogen and phosphorus-is a fundamental challenge in plant ecophysiology. When expressed per unit leaf area, these traits typically
Katabuchi, Masatoshi   +9 more
core   +3 more sources

New insights into polyploid evolution and dynamic nature of Ludwigia section Isnardia (Onagraceae)

open access: yesBotanical Studies, 2023
Background While polyploids are common in plants, the evolutionary history and natural dynamics of most polyploid groups are still unclear. Owing to plentiful earlier systematic studies, Ludwigia sect.
Shih‐Hui Liu   +5 more
semanticscholar   +1 more source

Survey of antibodies against Francisella tularensis and some enteropathogenic bacteria in the Hooded Crow Corvus corone cornix

open access: yesFauna Norvegica, 1983
Eighty-two hooded crows Corvus corone cornix L., 1758, were trapped in December 1980 using a great Norwegian Hooded Crows Trap in Grorud-dalen, Oslo, Norway.
Ørjan Olsvik, Bjørn B. Berdal
doaj   +1 more source

The dynamics of lncRNAs transcription in interspecific F1 allotriploid hybrids between Brassica species

open access: yesGenomics, 2022
Interspecific hybridization is the intrinsic forces behind genome evolution. Long non-coding RNAs (lncRNAs) are important for plant biological processes regulation. However, it is unclear that these non-coding fractions are impacted by interspecific hybridization.
Chengtao, Quan   +10 more
openaire   +2 more sources

Ecology of the Suldalslågen river in western Norway before its regulation

open access: yesFauna Norvegica, 1984
The River Suldalslågen, 22 km in length, situated in Rogaland province in western Norway, has been studied over a period of four years. The macro-invertebrate benthos was low in abundance especially in August and September.
Albert Lillehammer
doaj   +1 more source

Ideal Free Distributions, Evolutionary Games, and Population Dynamics in Multiple-Species Environments [PDF]

open access: yes, 2004
In this article, we develop population game theory, a theory that combines the dynamics of animal behavior with population dynamics. In particular, we study interaction and distribution of two species in a two-patch environment assuming that individuals ...
Cressman, Ross   +2 more
core   +2 more sources

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