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Visualizzazione post con etichetta plants. Mostra tutti i post
Visualizzazione post con etichetta plants. Mostra tutti i post

giovedì 22 aprile 2021

# life: cascading effects of noise on plants

<< Though noise may change moment by moment for humans, it has a more lasting effect on trees and plants. (..) human noise pollution affects the diversity of plant life in an ecosystem even after the noise has been removed. This is the first study that explores the long-term effects of noise on plant communities. >>
Cascading effects of noise on plants persist over long periods and after noise is removed. California Polytechnic State University. Apr 13, 2021. 


AA << found support for long-term negative effects of noise on tree seedling recruitment, evenness of woody plants and increasingly dissimilar vegetation communities with differences in noise levels. Furthermore, seedling recruitment and plant community composition did not recover following noise removal, possibly due in part to a lag in recovery among animals that disperse and pollinate plants. (They) results add to the limited evidence that noise has cascading ecological effects. Moreover, these effects may be long lasting and noise removal may not lead to immediate recovery. >>
Jennifer N. Phillips, Sarah E. Termondt, Clinton D. Francis.  Long-term noise pollution affects seedling recruitment and community composition, with negative effects persisting after removal. Proceedings of the Royal Society B. doi: 10.1098/ rspb.2020.2906. Apr 14, 2021.


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lunedì 23 marzo 2020

# gst: monkeyflower Mimulus code, with a simple spot generator inside

<< Many organisms exhibit visually striking spotted or striped pigmentation patterns. Developmental models predict that such spatial patterns can form when a local autocatalytic feedback loop and a long-range inhibitory feedback loop interact. At its simplest, this self-organizing network only requires one self-activating activator that also activates a repressor, which inhibits the activator and diffuses to neighboring cells. >>

Baoqing Ding, Erin L. Patterson, et al. 
Two MYB Proteins in a Self-Organizing Activator-Inhibitor System Produce Spotted Pigmentation Patterns. Current Biology.  Vol 30, Issue 5, P802-814.E8.  Mar 9, 2020.

https://www.cell.com/current-biology/fulltext/S0960-9822(19)31700-2

<< Patterns are everywhere in nature, not just color patterns but even how leaves are arranged on a stem, really anything with periodicity. Explaining these patterns could be similar in principle and that is what we're hoping to do, >> Yaowu Yuan

More clues for how the monkeyflower got its spots. University of Connecticut. Feb 20, 2020. 

https://m.phys.org/news/2020-02-clues-monkeyflower.html