Results 51 to 60 of about 1,314,808 (196)

Effects of Leaf Species and Conditioning State of Fresh Leaves on Colonization by Stream and Pond Macroinvertebrates

open access: yesHydrobiology
Fresh, green leaves are increasing as resources in aquatic ecosystems due to more frequent severe spring and summer storms, but research on allochthonous resources typically uses senescent leaves.
Austin R. Hoffman, Erika V. Iyengar
doaj   +1 more source

User interaction and uptake challenges to successfully deploying Semantic Web technologies [PDF]

open access: yes, 2006
The Semantic Web community could benefit greatly from 'eating its own dog food' in order to better understand the challenges and opportunities of a Semantic Web from the user perspective.
Domingue, John   +2 more
core   +2 more sources

The trophic ecology of a desert river fish assemblage: influence of season and hydrologic variability

open access: yesEcosphere, 2019
Foodweb analyses can provide insight as to how species persist in naturally dynamic environments and how these communities may respond to anthropogenic alteration.
Kathrine E. Behn, Colden V. Baxter
doaj   +1 more source

Effect of scavenging on predation in a food web

open access: yesEcology and Evolution, 2021
Scavenging can have important consequences for food web dynamics, for example, it may support additional consumer species and affect predation on live prey. Still, few food web models include scavenging.
Jarad P. Mellard   +5 more
doaj   +1 more source

Impact of the fishing ban on fish diversity and population structure in the middle reaches of the Yangtze River, China

open access: yesFrontiers in Environmental Science
The Yangtze River has experienced severe ecological degradation due to intensive human activities, including dam construction, land reclamation, and overfishing.
Juan Du   +11 more
doaj   +1 more source

AKTive Food: Semantic Web based knowledge conduits for the Organic Food Industry [PDF]

open access: yes, 2005
We present a vision and a proposal for using Semantic Web technologies in the organic food industry. This is a very knowledge intensive industry at every step from the producer, to the caterer or restauranteur, through to the consumer. There is a crucial
Brewster, Christopher   +2 more
core  

13C-enrichment NMR spectroscopy: a tool to identify trophic markers and linkages

open access: yesFrontiers in Marine Science
Current climate change, particularly ocean warming, will induce shifts in marine species distribution and composition, affecting the marine food web and, thus, trophic interactions.
Christian Bock   +4 more
doaj   +1 more source

Predicting trophic relations in ecological networks: a test of the Allometric Diet Breadth Model [PDF]

open access: yes, 2009
Few of food web theory hypotheses/predictions can be readily tested using empirical data. An exception is represented by simple probabilistic models for food web structure, for which the likelihood has been derived.
Allesina, Stefano
core  

Chaos induced coherence in two independent food chains

open access: yes, 2005
Coherence evolution of two food web models can be obtained under the stirring effect of chaotic advection. Each food web model sustains a three--level trophic system composed of interacting predators, consumers and vegetation.
A. Hasting   +13 more
core   +1 more source

Parameter estimation for allometric trophic network models: A variational Bayesian inverse problem approach

open access: yesMethods in Ecology and Evolution
Differential equation models are powerful tools for predicting biological systems, capable of projecting far into the future and incorporating data recorded at arbitrary times.
Maria Tirronen, Anna Kuparinen
doaj   +1 more source

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