Results 31 to 40 of about 1,309,000 (350)

Some effects of parasitism on food web structure: a topological analysis [PDF]

Network Biology, 2011
So far most of the food webs lack parasitism. It has been found that parasites can profoundly affect food web properties. In this study we tried to consider parasitism in the food web analysis in order to provide a basis for further and more complete ...
WeiPeng Kuang, WenJun Zhang
doaj  

Effect of multiple disturbances on food web vulnerability to biodiversity loss in detritus-based systems [PDF]

, 2015
Global biodiversity is affected by human pressure and climate change, and the present rate of biodiversity loss is probably higher than ever before. Community composition is also changing, and interspecific interactions are under severe pressure.
Calizza, Edoardo, Costantini, Maria Letizia, Rossi, Loreto   +2 more
core   +1 more source

Ecology: Engineered food webs [PDF]

Current Biology, 1996
An important new study shows that, in a food web, the strengths and arrangement of the interactions between species are determining factors of stability of the system.
Manne, Lisa, Pimm, Stuart L.
openaire   +2 more sources

Some Properties of the Speciation Model for Food-Web Structure - Mechanisms for Degree Distributions and Intervality

, 2005
We present a mathematical analysis of the speciation model for food-web structure, which had in previous work been shown to yield a good description of empirical data of food-web topology. The degree distributions of the network are derived.
A.G. Rossberg, Amaral, Bailey, Baird, Berlow, Briand, Caldarelli, Camacho, Camacho, Camacho, Cattin, Cohen, Cohen, Drossel, Drossel, Goldwasser, H. Matsuda, Hall, Havens, K. Itoh, Martinez, Memmott, Montoya, Pastor-Satorras, Pimm, Polis, Raup, Stouffer, T. Amemiya, Tokita, Vazquez, Warren, Warren, Williams, Yoshida, Yoshida   +35 more
core   +1 more source

Early warning of complex climate risk with integrated artificial intelligence

Nature Communications
As climate change accelerates, human societies face growing exposure to disasters and stress, highlighting the urgent need for effective early warning systems (EWS).
Markus Reichstein, Vitus Benson, Jan Blunk, Gustau Camps-Valls, Felix Creutzig, Carina J. Fearnley, Boran Han, Kai Kornhuber, Nasim Rahaman, Bernhard Schölkopf, José María Tárraga, Ricardo Vinuesa, Karen Dall, Joachim Denzler, Dorothea Frank, Giulia Martini, Naomi Nganga, Danielle C. Maddix, Kommy Weldemariam   +18 more
doaj   +1 more source

Trophic structure and fishing impacts on an oligotrophic ecosystem in the Western Mediterranean: the Balearic Islands

Frontiers in Marine Science, 2023
Within the context of the ecosystem approach to fisheries management, an ecosystem model was developed for the Balearic Islands in the early 2000s, covering from 0 to 800 m of depth.
Paula Sánchez-Zulueta, María Valls, Beatriz Guijarro, María Ángeles Torres, María Ángeles Zapata, Marta Coll, Xavier Corrales, Eider Andonegi, Marta Díaz-Valdés, Enric Massutí, Francesc Ordines   +10 more
doaj   +1 more source

Dispersal Dynamics in Food Webs [PDF]

The American Naturalist, 2015
Studies of food webs suggest that limited nonrandom dispersal can play an important role in structuring food webs. It is not clear, however, whether density-dependent dispersal fits empirical patterns of food webs better than density-independent dispersal.
Melián, Carlos J, Křivan, Vlastimil, Altermatt, Florian, Starý, Petr, Pellissier, Loïc, De Laender, Frederik   +5 more
openaire   +4 more sources

Asynchronous food-web pathways could buffer the response of Serengeti predators to El Niño southern oscillation [PDF]

, 2013
Understanding how entire ecosystems maintain stability in the face of climatic and human disturbance is one of the most fundamental challenges in ecology.
Bukombe, J., Byrom, A.E., Cleaveland, S., Craft, M.E., Dempewolf, J., Durant, S.M., Forrester, G.J., Fryxell, J.M., Hampson, K., Hilborn, R., Lembo, T., Mchetto, J., Mduma, S.A.R., Metzger, K.L., Mosser, A., Nkwabi, A., Packer, C., Sinclair, A.R.E.   +17 more
core   +1 more source

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham, Jasibel Vasquez‐Gonzalez, Samantha M. Barnada, Salome Tchotorlishvili, Latese Jones, Ryan Maguire, Genevieve Lewis, Kinza Rizwan, Jenny Deng, Salma Koachar, Drithi Patel, Hailey Shankle, Tessa Mulders, Namra Ajmal, Charalambos Solomides, Emad S. Alnemri, Teresa F. Alnemri, Ayesha A. Shafi, Leonard G. Gomella, Wm Kevin Kelly, Steven B. McMahon, Matthew J. Schiewer   +21 more
wiley   +1 more source

Allochthonous resources are less important for faunal communities on highly productive, small tropical islands

Ecology and Evolution, 2021
Ecosystems are interconnected by energy fluxes that provide resources for the inhabiting organisms along the transition zone. Especially where in situ resources are scarce, ecosystems can become highly dependent on external resources.
Sebastian Steibl, Robert Sigl, Sanja Blaha, Sophia Drescher, Gerhard Gebauer, Elif Gürkal, Frederic Hüftlein, Anna Satzger, Michael Schwarzer, Dimitri Seidenath, Jana Welfenbach, Raphael S. Zinser, Christian Laforsch   +12 more
doaj   +1 more source