Results 61 to 70 of about 4,256,851 (341)

Scaling Behaviors of Weighted Food Webs as Energy Transportation Networks

, 2010
Food webs can be regarded as energy transporting networks in which the weight of each edge denotes the energy flux between two species. By investigating 21 empirical weighted food webs as energy flow networks, we found several ubiquitous scaling ...
Albert, Allesina, Almaas, Baird, Banavar, Barber, Barrat, Berlow, Brown, Chen, Clementi, Cohen, Duan, Dunne, Emmerson, Fath, Fath, Finn, Garlaschelli, Goldstein, Hannon, Hannon, Herrada, Higashi, Higashi, Jiang Zhang, Kleiber, Leontief, Leontief, Levine, Liangpeng Guo, McCann, Montis, Montoya, Newman, Noether, Odum, Patten, Patten, Patten, Rousseau, Szyrmer, Ulanowicz, Ulanowicz, Ulanowicz, Ulanowicz, Waldrop, Watts, West, Williams, Wootton   +50 more
core   +1 more source

Dynamics of Simple Food Webs [PDF]

Bulletin of Mathematical Biology, 2015
We consider a simple food web with commensal relationship, where organisms utilize both external resources and resources produced by other organisms. We show that in such a community with no competition, there is at most one possible equilibrium for each fixed set of surviving species, and develop a natural condition that determines which species ...
Gedeon, Tomas, Murphy, Patrick
openaire   +2 more sources

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

Molecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix, Daniel Samaga, Katharina Gehr, Benedek Dankó, Mohamed Schumann, Guido Drexler, Ahmed Alnatsha, Georg Beyer, Ujjwal Mahajan, Martin Selmansberger, Julia Mayerle, Claus Belka, Horst Zitzelsberger, Kirsten Lauber   +13 more
wiley   +1 more source

Effect of parasitism on food webs: Topological analysis and goodness test of cascade model [PDF]

Network Biology, 2014
In this study, we used Pajek to analyze the effect of parasitism on food webs collected from Carpinteria Salt Marsh (CSM). Results showed that median and mean of generality and vulnerability for predator-prey and parasite-host sub-webs were greater than ...
WenJun Zhang, LiQin Jiang, WenJin Chen
doaj  

Status and trends in the structure of Arctic benthic food webs [PDF]

Polar Research, 2015
Ongoing climate warming is causing a dramatic loss of sea ice in the Arctic Ocean, and it is projected that the Arctic Ocean will become seasonally ice-free by 2040.
Monika Kędra, Charlotte Moritz, Emily S. Choy, Carmen David, Renate Degen, Steven Duerksen, Ingrid Ellingsen, Barbara Górska, Jacqueline M. Grebmeier, Dubrava Kirievskaya, Dick van Oevelen, Kasia Piwosz, Annette Samuelsen, Jan Marcin Węsławski   +13 more
doaj   +1 more source

ATG4B is required for mTORC1‐mediated anabolic activity and is associated with clinical outcomes in non‐small cell lung cancer

FEBS Open Bio, EarlyView.
The relationship between anabolic and catabolic processes governing lung cancer cell growth is nuanced. We show that ATG4B, an autophagy regulator, is elevated in lung cancer and that high ATG4B is associated with worse patient outcomes. Targeting ATG4B in cells reduces growth, protein synthesis, and mTORC1 activity, demonstrating a new relationship ...
Patrick J. Ryan, Bethany C. Guerra, Selina Uranga, Jessica M. Cardin, Steven E. Riechman, Mariana Janini Gomes, James D. Fluckey   +6 more
wiley   +1 more source

Consistent predator-prey biomass scaling in complex food webs

Nature Communications, 2022
The ratio of predator-to-prey biomass is a key element in food webs. Here, the authors report a unified analysis of predator-prey biomass scaling in complex food webs, finding general patterns of sub-linear scaling across ecosystems and levels of ...
Daniel M. Perkins, Ian A. Hatton, Benoit Gauzens, Andrew D. Barnes, David Ott, Benjamin Rosenbaum, Catarina Vinagre, Ulrich Brose   +7 more
doaj   +1 more source

An explanatory model for food-web structure and evolution [PDF]

, 2005
Food webs are networks describing who is eating whom in an ecological community. By now it is clear that many aspects of food-web structure are reproducible across diverse habitats, yet little is known about the driving force behind this structure ...
A.G. Rossberg, Amaral, Baird, Berger, Bush, Caldarelli, Camacho, Camacho, Cattin, Cohen, Dorogovtsev, Drossel, Drossel, Fenchel, Garlaschelli, Goldwasser, H. Matsuda, Hall, Havens, Jaccard, Jones, K. Itoh, Kondoh, Leaper, Martinez, May, McCann, Memmott, Milo, Montoya, Polis, Schoener, T. Amemiya, Warren, Williams, Yodzis, Yoshida   +36 more
core   +4 more sources

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

A Statistical Social Network Model for Consumption Data in Food Webs

, 2013
We adapt existing statistical modeling techniques for social networks to study consumption data observed in trophic food webs. These data describe the feeding volume (non-negative) among organisms grouped into nodes, called trophic species, that form the
Anton H. Westveld, Borrett, Chiu, Chiu, Chiu, Chiu, Cohen, Dambacher, Dunne, Düntsch, Frank, Gill, Goldenberg, Goldwasser, Grace S. Chiu, Hoff, Hoff, Jennings, Krause, Krivitsky, Krivitsky, Krivitsky, Lunn, Mucha, Pinnegar, Robins, Rooney, Thomas, van Duijn, Ward, Wasserman, Westveld, Williams, Winemiller, Yodzis   +34 more
core   +1 more source