Results 61 to 70 of about 5,889,365 (284)

Significance of colour polymorphism in mountain populations of abundant leaf beetles (Coleoptera, Chrysomelidae)

Pirineos: Revista de Ecología de Montaña, 2001
[fr] Les Scarabées des feuilles deviennent spécialement communs, présentent de nombreuses espèces et sans doute peuvent jouer un rôle important sur le cycle de biomasse et le flux d'énergie des écosystèmes alpiens.
Y. E. Mikhailov
doaj   +1 more source

Cultural turnover among Galápagos sperm whales [PDF]

Royal Society Open Science, 2016
While populations may wax and wane, it is rare for an entire population to be replaced by a completely different set of individuals. We document the large-scale relocation of cultural groups of sperm whale off the Galápagos Islands, in which two ...
Mauricio Cantor, Hal Whitehead, Shane Gero, Luke Rendell   +3 more
doaj   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

CD9+ B Cells Induce T Follicular Helper Cell Apoptosis to Regulate Germinal Center Regression

Advanced Science, EarlyView.
A unique subset of CD9+ B cells regulates germinal center B (GC‐B) cell regression by inducing T follicular helper (Tfh) cell apoptosis through multiple signaling pathways, such as ALCAM‐CD6. FOXP1 plays a key role in GC‐B cell differentiation. These findings clarify mechanisms of GC degeneration and termination and offer potential targets for adenoid ...
Wenjing Liao, Lijuan Song, Meiqian Xu, Tianhao Liang, Yixuan Chen, Gui Chen, Zaihuan Lin, Huakang Du, Guofei Feng, Zhiming Feng, Qi Zhang, Fan Pan, Saixuan Yang, Xinyin Zhang, Wenxu Peng, Tianlong Li, Zhuoshen Lin, Yabang Chen, Jiayi Liu, Baoxin Peng, Yan Liu, Xing Niu, Ting Li, Chengyu Huang, Ke Mo, Jianlei Xie, Yu Zou, Xiaowen Zhang   +27 more
wiley   +1 more source

Body Temperature Differences Between Green And Brown Grasshoppers Do Not Result From Thermal Physiology or Thermal Preferences

Ecology and Evolution
Colour polymorphisms correspond to the co‐occurrence of several distinct colour morphs that vary in hue and/or brightness, independently of sex, age or any other state‐dependent modifiers.
Lilian Cabon, Holger Schielzeth
doaj   +1 more source

Consensus Formation and Change are Enhanced by Neutrality

Advanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag, Janina A. Hoffmann, Tim Rogers, Christian A. Yates   +3 more
wiley   +1 more source

NEW SIZE MEASUREMENTS IN POPULATION ECOLOGY [PDF]

In organizational ecology, we find the analysis of the impact exerted by competition between populations on vital ratios to be relatively under-developed.
Manuel Cano Rodríguez, Manuel Núñez Nickel   +1 more
core  

Integrating Ecology and Economics in Agent‐Based Models to Support Agricultural Policy

Advanced Science, EarlyView.
Agent‐based models are valuable tools for studying social‐ecological systems in agriculture. This review maps how existing agent‐based models represent the human and natural domains of agriculture, and discusses developments in economic and ecological agent‐based modeling.
Daniel Vedder, Judith Josephin Rakowski, Lea‐Deborah Kolb, Greta Sophie Theilen‐Loges, Sebastian Lakner, Guy Pe'er   +5 more
wiley   +1 more source

Effects of Roads and Traffic on Wildlife Populations and Landscape Function: Road Ecology is Moving toward Larger Scales [PDF]

, 2011
Road ecology has developed into a significant branch of ecology with steady growth in the number of refereed journal articles, books, conferences, symposia, and "best practice" guidelines being produced each year. The main objective of this special issue
Jochen A. G. Jaeger, Jaeger, J.A.G., Edgar A. van der Grift, Clevenger, A.P., Clevenger, Anthony P., van der Ree, Rodney, Rodney van der Ree, Grift, E.A., van der, van der Grift, Edgar A., Ree, R., van, Anthony P. Clevenger, Jaeger, Jochen A.G.   +11 more
core   +1 more source

Transcription Factor Promiscuity Drives Regulatory Rewiring and Evolvability in Gene Networks in Bacteria

Advanced Science, EarlyView.
When a master transcription factor (TF) is lost, bacteria can rapidly rewire gene regulatory networks by co‐opting related regulators. Using experimental evolution in Pseudomonas fluorescens, we show that TF promiscuity (low‐level, non‐cognate binding) provides the raw material for rewiring. Successful co‐option follows a predictable hierarchy governed
Tiffany B. Taylor, Alan M. Rice
wiley   +1 more source