Results 101 to 110 of about 15,772 (216)

Effects of predation by Hydra (Cnidaria) on cladocerans (Crustacea: Cladocera)

Journal of Limnology, 2016
Planktonic cladocerans have evolved different strategies to avoid predation from vertebrates; these include changes in morphology, behavior, physiology, and/or life-history traits.
Ligia Rivera-De la Parra, S.S.S. Sarma, S. Nandini   +2 more
doaj   +1 more source

Community‐wide transient dynamics of lake fish populations in response to two decades of suppressing an introduced predator

Journal of Applied Ecology, Volume 62, Issue 6, Page 1406-1420, June 2025.
Fish community restoration efforts are rarely followed by long‐term evaluations, hence current understanding of responses to removal of introduced and invasive species may be largely based on transient dynamics. Instead, both population abundance and size structure should be documented for at least a few generations of the longest‐lived species ...
Thomas M. Detmer, Montana E. Airey, Kurt J. Jirka, Eileen A. Randall, Liam Zarri, Peter B. McIntyre, Cliff E. Kraft   +6 more
wiley   +1 more source

Deficient autophagy in epithelial stem cells drives aging in the freshwater cnidarian Hydra

Development, 2019
Hydra possesses three distinct stem cell populations that continuously self-renew and prevent aging in Hydra vulgaris. However, sexual animals from the H.
S. Tomczyk, N. Suknovic, Q. Schenkelaars, Y. Wenger, K. Ekundayo, W. Buzgariu, Christoph Bauer, K. Fischer, S. Austad, B. Galliot   +9 more
semanticscholar   +1 more source

piRNA processing within non‐membrane structures is governed by constituent proteins and their functional motifs

The FEBS Journal, Volume 292, Issue 11, Page 2715-2736, June 2025.
The silencing of transposable elements is mediated by piRNAs through post‐transcriptional and transcriptional regulation. In Drosophila, piRNAs are processed within unique non‐membrane structures: nuage in germline cells and Yb bodies in somatic gonadal cells.
Ritsuko Suyama, Toshie Kai
wiley   +1 more source

Hydra regeneration and epitheliopeptides [PDF]

Developmental Dynamics, 2003
AbstractHydra has been well known for over 200 years for its remarkable regenerative capacity. In addition to small pieces excised from the body, reaggregates of dissociated single cells can also regenerate. Although the cellular events involved in the regeneration process have been well characterized, the underlying molecular mechanisms are yet to be ...
openaire   +3 more sources

Hydra: A mixture modeling framework for subtyping pediatric cancer cohorts using multimodal gene expression signatures.

PLoS Computational Biology, 2020
Precision oncology has primarily relied on coding mutations as biomarkers of response to therapies. While transcriptome analysis can provide valuable information, incorporation into workflows has been difficult.
Jacob Pfeil, Lauren M Sanders, Ioannis Anastopoulos, A Geoffrey Lyle, Alana S Weinstein, Yuanqing Xue, Andrew Blair, Holly C Beale, Alex Lee, Stanley G Leung, Phuong T Dinh, Avanthi Tayi Shah, Marcus R Breese, W Patrick Devine, Isabel Bjork, Sofie R Salama, E Alejandro Sweet-Cordero, David Haussler, Olena Morozova Vaske   +18 more
doaj   +1 more source

The Toxicity of Silver Nanoparticles (AgNPs) to Three Freshwater Invertebrates With Different Life Strategies: Hydra vulgaris, Daphnia carinata, and Paratya australiensis

Frontiers in Environmental Science, 2018
The toxicity of manufactured nanoparticles varies greatly depending on the test species in consideration and estimates of toxicity may also be confounded by test media in which the organisms are cultured.
Sam Lekamge, Ana F. Miranda, A. Abraham, V. Li, R. Shukla, V. Bansal, D. Nugegoda   +6 more
semanticscholar   +1 more source

Modeling Plant Nutrient Acquisition Strategies Alters Projections of Carbon and Nitrogen Dynamics in Bioenergy Agroecosystems

GCB Bioenergy, Volume 17, Issue 6, June 2025.
Plant nutrient uptake mechanisms shape ecosystem characteristics like nutrient cycling rates and soil quality. These dynamics are unstudied in bioenergy agroecosystems, and likely vary with plant life history. While annuals rely on root uptake, perennials form extensive symbioses and internally recycle nutrients.
Stephanie M. Juice, Melannie D. Hartman, Adam C. von Haden, William J. Parton, Edward R. Brzostek   +4 more
wiley   +1 more source

Comprehensive machine learning analysis of Hydra behavior reveals a stable basal behavioral repertoire

eLife, 2018
Animal behavior has been studied for centuries, but few efficient methods are available to automatically identify and classify it. Quantitative behavioral studies have been hindered by the subjective and imprecise nature of human observation, and the ...
Shuting Han, Ekaterina H. Taralova, Christophe Dupre, R. Yuste   +3 more
semanticscholar   +1 more source

Operational Reliability of Emergency Measures, a Case Study for the BresDefender

Journal of Flood Risk Management, Volume 18, Issue 2, June 2025.
ABSTRACT During extreme high‐water events in river systems, the load on a levee section may exceed its resistance, initiating the breaching process which eventually leads to levee failure. The success of an emergency measure to intervene in the initial phases of levee failure is mainly dependent on its timely application.
D. Janssen, S. N. Jonkman, A. J. M. Schmets, B. Hofland, E. Dado   +4 more
wiley   +1 more source