Results 21 to 30 of about 1,309,000 (350)

Combining Geographic Distribution and Trait Information to Infer Predator–Prey Species-Level Interaction Properties

open access: yesDiversity, 2023
Biotic interactions are a key component of the proper functioning of ecosystems. However, information on biotic interactions is spatially and taxonomically biased and limited to several groups. The most efficient strategy to fill these gaps is to combine
Alejandro Sánchez-Barradas   +4 more
doaj   +1 more source

Linking food web functioning and habitat diversity for an ecosystem based management: A Mediterranean lagoon case-study [PDF]

open access: yes, 2014
We propose a modelling approach relating the functioning of a transitional ecosystem with the spatial extension of its habitats. A test case is presented for the lagoon of Venice, discussing the results in the context of the application of current EU ...
Brigolin, D.   +11 more
core   +1 more source

Diversity and abundance of water birds in a subarctic lake during three decades

open access: yesFauna Norvegica, 2013
The numbers of divers, ducks, gulls, terns and waders in the 15 km2 oligotrophic lake Takvatn, North Norway were estimated six times during 1983-2012. Systematic mapping surveys were done by boat within the first week after ice-break in June.
Anders Klemetsen, Rune Knudsen
doaj   +1 more source

Ciliates in different types of pools in temperate, tropical, and polar climate zones – implications for climate change

open access: yesJournal 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
doaj   +1 more source

Biogeochemical analysis of ancient Pacific Cod bone suggests Hg bioaccumulation was linked to paleo sea level rise and climate change

open access: yesFrontiers 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
doaj   +1 more source

Cross-Ecosystem Linkages: Transfer of Polyunsaturated Fatty Acids From Streams to Riparian Spiders via Emergent Insects

open access: yesFrontiers 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
doaj   +1 more source

Comparison Between Trophic Positions in the Barents Sea Estimated From Stable Isotope Data and a Mass Balance Model

open access: yesFrontiers 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
doaj   +1 more source

Top‐down effects of filter‐feeding fish and bivalves moderate bottom‐up effects of nutrients on phytoplankton in subtropical shallow lakes: An outdoor mesocosm study

open access: yesEcology 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
doaj   +1 more source

Intelligent Packaging Systems: Sensors and Nanosensors to Monitor Food Quality and Safety [PDF]

open access: yes, 2016
Indexación: Web of Science y Scopus.The application of nanotechnology in different areas of food packaging is an emerging field that will grow rapidly in the coming years.
Carrasco, R   +5 more
core   +2 more sources

Evaluation of the effect of agroclimatic variables on the probability and timing of olive fruit fly attack

open access: yesFrontiers in Plant Science
Agroclimatic 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
doaj   +1 more source

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