Results 61 to 70 of about 98,080 (242)

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

Optimal Foraging Algorithm Based on Differential Evolution

IEEE Access, 2020
The optimal foraging algorithm (OFA) was proposed by summarizing the rules of the animal foraging behavior in a group. Therefore OFA also has the defects of the swarm intelligence algorithm, such as easy to trap into local optimum and low convergence ...
Yanming Fu, Weizhi Zhang, Chiwen Qu, Baohua Huang   +3 more
doaj   +1 more source

Predator-Prey Interactions between Nonnative Juvenile Largemouth Bass (Micropterus salmoides) and Local Candidate Prey Species in the Pearl River Delta: Predation Capacity, Preference and Growth Performance

Life, 2022
An ontogenetic dietary shift is crucial for the survival and growth of piscivorous largemouth bass (LB). However, there is much to learn about the predator-prey interaction during the switching process.
Du Luo, Minghao Ye, Dingtian Yang
doaj   +1 more source

Foraging Behavior of Tetramorium Caespitum in an Urban Environment: the Effect of Food Quality on Foraging [PDF]

, 2016
Animals\u27 foraging strategies are directly related to their fitness. Proposed models of optimal foraging assume that animals strategize in terms of maximizing benefits over the cost of acquiring resources. Ants are social insects that are comparable in
Crofton, Nicole A., D\u27Mello, Sabrina R., Sy, Nene S.   +2 more
core   +1 more source

Polygamy in the Marsh Harrier, Circus aeruginosus: Individual Variation in Hunting Performance and Number of Mates [PDF]

, 1982
1. Theories postulating that sexual task differentiation may lead to polygamy such that the sex investing the least effort in raising the offspring, engages in simultaneous matings, contrast with polygyny in raptors where the male provides most of the ...
Altenburg, Wibe,, Daan, Serge,, Starkenburg, Jaap,, Zijlstra, Menno,   +3 more
core   +1 more source

Astrocyte Enrichment of 3D Cortical Constructs Enhances Brain Repair

Advanced Science, EarlyView.
This study highlights the role of astrocytes in supporting neural progenitor cell survival and differentiation after traumatic brain injury. Astrocytes enhanced neuronal differentiation, improved cell survival in co‐cultures, and promoted integration of microfluidics‐based implants with host tissue following implantation. Additionally, increased axonal
Elisa M. Cruz, Luana C. Soares, Gretchen Greene, Fernando Messore, Mohammed Abuelem, Mingyu Li, Caroline Andersen, Mirriam Domocos, Elisa Vitiello, Rabeah Abdul Razak, Marlene Lawston, Gabriel Moser, Talia Vasaturo‐Kolodner, Mona Barkat, Roslyn M. Bill, Edward Mann, Linna Zhou, Mootaz M. Salman, Hagan Bayley, Zoltán Molnár, Francis G. Szele   +20 more
wiley   +1 more source

Optimal foraging strategies can be learned

New Journal of Physics
The foraging behavior of animals is a paradigm of target search in nature. Understanding which foraging strategies are optimal and how animals learn them are central challenges in modeling animal foraging.
Gorka Muñoz-Gil, Andrea López-Incera, Lukas J Fiderer, Hans J Briegel   +3 more
doaj   +1 more source

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

, 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  

Non-L\'evy mobility patterns of Mexican Me'Phaa peasants searching for fuelwood [PDF]

, 2012
We measured mobility patterns that describe walking trajectories of individual Me'Phaa peasants searching and collecting fuelwood in the forests of "La Monta\~na de Guerrero" in Mexico.
A Ghilardi, AM Edwards, AM Reynolds, AM Schreier, AV Chechkin, B Enquist, C Raleigh, C Sueur, CT Brown, CT Brown, D Boyer, D Boyer, D Boyer, D Boyer, D Boyer, D Boyer, D Brockmann, Diego Hernández, DW Sims, EL Charnov, Eliane Ceccon, F Matthäus, F Pineda-García, G Ramos-Fernández, G Ramos-Fernández, GF Lima, GM Viswanathan, HE Stanley, I Rhee, IEA, J Klafler, J Rzedowski, J Wakeley, JC Berrìo, JC Flores, L Mao, M Campiteli, M Hébert, M Jager de, M Slatkin, MA Lomholt, MB Burke, MC Gonzalez, MC Santos, MEJ Newman, MF Shlesinger, O Bénichou, O Miramontes, Octavio Miramontes, Og DeSouza, P Knoppien, PJ Brantingham, PJ Richerson, R Development Core Team, R Landa, RR Sokal, SG Nurzaman, SM Hsiang, TF Homer-Dixon, V Cervantes, V Cervantes   +60 more
core   +4 more sources

Coordination of Cyanobacterial Nitrate Assimilation and Photosynthesis by a Novel PsbO‐Interacting Protein PirN

Advanced Science, EarlyView.
PirN was identified as a previously uncharacterized PsbO‐interacting protein specifically induced in nitrate‐grown cyanobacteria. Loss of PirN leads to coordinated downregulation of PsbO and the nitrate reductase NarB, causing decreased PSII activity and impaired growth under nitrate conditions. Complementation with either PsbO or NarB largely restores
Chengcheng Huang, Zhen Xiao, Haitao Ge, Gaojie Wang, Jinghui Dong, Yan Wang, Hang Yang, Xing Wang, Hui Gao, Zhongshu Wang, Huanling Yang, Yuanya Zhang, Xiahe Huang, Wu Xu, Weimin Ma, Wenqiang Yang, Yingchun Wang   +16 more
wiley   +1 more source