Results 31 to 40 of about 4,994,560 (284)
Frontiers in Environmental Science, 2015 Deglaciation at the end of the Pleistocene initiated major changes in ocean circulation and distribution. Within a brief geological time, large areas of land were inundated by sea-level rise and today global sea level is 120 m above its minimum stand ...
Maribeth S. Murray +6 more
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Journal of Limnology, 2021 Small water bodies are typically characterized by high diversity of various groups of microorganisms. Moreover, these ecosystems react very quickly to even the slightest climate changes (e.g. a temperature increase or water level fluctuations). Thus far,
Tomasz Mieczan +1 more
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Observability and observers in a food web
Applied Mathematics Letters, 2007 The problem of the possibility to recover the time-dependent state of a whole population system out of the observation of certain components has been studied in earlier publications, in terms of the observability concept of mathematical systems theory. In the present note a method is proposed to effectively calculate the state process.
Inmaculada López +2 more
openaire +4 more sources
Frontiers in Ecology and Evolution, 2021 Polyunsaturated fatty acids (PUFAs) are essential resources unequally distributed throughout landscapes. Certain PUFAs, such as eicosapentaenoic acid (EPA), are common in aquatic but scarce in terrestrial ecosystems.
Carmen Kowarik +4 more
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Frontiers in Marine Science, 2022 The trophic position concept is central in system ecology, and in this study, trophic position (TP) estimates from stable-isotopes and an Ecopath mass-balance food web model for the Barents Sea were compared. Two alternative models for estimating TP from
Torstein Pedersen
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Trophic coherence determines food-web stability [PDF]
, 2014 Why are large, complex ecosystems stable? Both theory and simulations of current models predict the onset of instability with growing size and complexity, so for decades it has been conjectured that ecosystems must have some unidentified structural ...
Johnson, Samuel +6 more
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Ecology and Evolution, 2023 Biomanipulation has been widely used in the ecological restoration of eutrophic lakes for decades. However, biomanipulation is prone to failure if external nutrient loads are not reduced.
You Zhang +8 more
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Food safety in Finland 2021 [PDF]
, 2022 This report presents the 2021 results of regulatory control related to food safety, official controls and monitoring programmes on food and feed, as well as research and risk assessments.
Finnish Food Authority, Finnish Food Authority
core
Invasion of a stream food web by a new top predator. [PDF]
, 1999 PhDA large predator, the nymph of the dragonfly Cordulegaster boltonii (Anisoptera) (Donovan), has recently invaded Broadstone Stream, an acid headwater in southern England.
Woodward, Guy
core +4 more sources
Frontiers in Plant ScienceAgroclimatic variables may affect insect and plant phenology, with unpredictable effects on pest populations and crop losses. Bactrocera oleae Rossi (Diptera: Tephritidae) is a specific pest of Olea europaea plants that can cause annual economic losses ...
Gabriele Rondoni +11 more
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