Results 41 to 50 of about 44,189 (275)

Evolving eco-system: a network of networks [PDF]

, 2004
Ecology and evolution are inseparable. Motivated by some recent experiments, we have developed models of evolutionary ecology from the perspective of dynamic networks.
Abramson, Amaral, Bak, Chowdhury, Chowdhury, Debashish Chowdhury, Dietrich Stauffer, Drossel, Drossel, Newman, Solé, Solé, Stauffer, Stockwell, Thompson, Wilmers, Yoshida   +16 more
core   +2 more sources

Effects of Behavioral Tactics of Predators on Dynamics of a Predator-Prey System

Advances in Mathematical Physics, 2014
A predator-prey model incorporating individual behavior is presented, where the predator-prey interaction is described by a classical Lotka-Volterra model with self-limiting prey; predators can use the behavioral tactics of rock-paper-scissors to dispute
Hui Zhang, Zhihui Ma, Gongnan Xie, Lukun Jia   +3 more
doaj   +1 more source

A piecewise deterministic model for a prey-predator community [PDF]

, 2016
International audienceWe are interested in prey-predator communities where the predator population evolves much faster than the prey's (e.g. insect-tree communities).
Costa, Manon
core   +4 more sources

The shape of ecological networks

, 2001
We study the statistics of ecosystems with a variable number of co-evolving species. The species interact in two ways: by prey-predator relationships and by direct competition with similar kinds.
Angelo Valleriani, B. Drossel, B. Drossel, E. C. Pielou, G. Caldarelli, J. Camacho, J. E. Cohen, J. E. Cohen, J. Maynard Smith, J. Maynard Smith, L. A. Nunes Amaral, L.-F. Bersier, M. A. Leibold, M. L. Rosenzweig, Michael Lässig, N. C. Stenseth, P. H. Warren, R. J. Williams, R. M. May, R. May, R. V. Solé, R. V. Solé, S. J. Gould, S. L. Pimm, Susanna C. Manrubia, Ugo Bastolla, W. C. Allee   +26 more
core   +1 more source

TREX1, a predator for treating MSI‐H tumors?

Molecular Oncology, EarlyView.
Immunotherapy benefits many patients; yet, some with MSI‐H tumors remain unresponsive despite their high immunogenicity. Xu et al. reveal that TREX1 enables immune evasion by degrading cytosolic DNA and suppressing cGAS–STING–IFN‐I signaling. TREX1 loss restores DNA sensing, increases CD8+ T and NK cell infiltration, and boosts antitumor immunity ...
Elena Benidovskaya, Joséphine Deneft, Marc Van den Eynde   +2 more
wiley   +1 more source

Hunting‐mediated predator facilitation and superadditive mortality in a European ungulate

Ecology and Evolution, 2018
Predator‐prey theory predicts that in the presence of multiple types of predators using a common prey, predator facilitation may result as a consequence of contrasting prey defense mechanisms, where reducing the risk from one predator increases the risk ...
Benedikt Gehr, Elizabeth J. Hofer, Mirjam Pewsner, Andreas Ryser, Eric Vimercati, Kristina Vogt, Lukas F. Keller   +6 more
doaj   +1 more source

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Switching model with two habitats and a predator involving group defence

, 1998
Switching model with one predator and two prey species is considered. The prey species have the ability of group defence. Therefore, the predator will be attracted towards that habitat where prey are less in number.
Anderson G.D., Bertram B.C.R., Braun H.M.H., Freedman H.I., Freedman H.I., Freedman H.I., Grzimek B., Holmes J.C., Kreulen D.K., Lawton J.H., Maddock L., Marsdem J.E., May R.M., McNaughton S.J., Murdoch W.W., Pennywick L., Prajneshu, Roughgarden J., Schaller G.B., Shigui Ruan, Takahashi F., Talbot L.M., Van Orsdol K.G., Yang R.D.   +23 more
core   +3 more sources

Bistability induced by generalist natural enemies can reverse pest invasions [PDF]

, 2016
Reaction-diffusion analytical modeling of predator-prey systems has shown that specialist natural enemies can slow, stop and even reverse pest invasions, assuming that the prey population displays a strong Allee effect in its growth.
Barles, Guy, Casas, Jérôme, Madec, Sten, Suppo, Christelle   +3 more
core   +4 more sources

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

Advanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj, Hannah S. Newton, Jian Wang, Laxmi Pandey, Yelixza I. Avilla, Phong Nguyen, Morgan Chandler, Justin Halman, Yasmine Radwan, Stephanie Smith, Elijah Edmondson, Simone Difilippantonio, Chelsea Sanders, Bao Tran, Yongmei Zhao, Shaojun Xie, Edward Cedrone, Barry W. Neun, Meni Wanunu, Nikolay V. Dokholyan, Marina A. Dobrovolskaia, Kirill A. Afonin   +21 more
wiley   +1 more source