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Sean Nash

Wild plants and crops don't make great neighbors | UCR News | UC Riverside - 0 views

news.ucr.edu/...rops-dont-make-great-neighbors

crops disease native non-native plants botany agriculture plantpathology pathology HSR HSR-2025 potential research idea science environmental questions biology

shared by Sean Nash on 16 Jul 24 - No Cached
  • Sean Nash on 16 Jul 24
     
    There are plenty of things about this study that are not so feasible for us at the moment, but... this general area: plant pathology, interactions between native and non-native plants & crops... is a very cool area to explore that would present some feasibility for us.
emmarrogers

Frequent mowing puts poisonous weed into survival mode | ScienceDaily - 1 views

www.sciencedaily.com/...240603195751.htm

HSR HSR-2025 behavior biology environmental potential research idea botany

shared by emmarrogers on 04 Jun 24 - No Cached
  • The taproot went down further
  • More spikes popped out on the stem
  • The flowers became more toxic
  • ...8 more annotations...
  • Although studies have often highlighted weed fitness and defense traits resulting from disturbances like mowing, most were limited to foliar, or leaf, defenses, Kariyat said. That changed when Vasquez and fellow master's biology students at the University of Texas Rio Grande Valley monitored fields of mowed, unmowed and frequently mowed silverleaf nightshade in and around Edinburg, Texas.
  • "Alejandro's question was, 'how do these flowers differ between mowed and unmowed plants?'"
  • "You are trying to mow these plants so that the plants are getting eliminated," Kariyat said. "But what you are actually doing here, you are making them much worse, much stronger."
  • The observations of mowed, unmowed and frequently mowed areas with silverleaf nightshade provide evidence that could prompt further studies by weed scientists on best management practices, Kariyat said.
    • Sean Nash
      Sean Nash on 04 Jun 24
       
      Again... when you see a callout like this for more research in an area... especially one that might be feasible with some serious planning/organization... you might be on to something.
  • the study does provide more insight into the defensive capabilities of plants pitted against human disturbance
  • "Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range."
  • Journal Reference: Alejandro Vasquez, Alexa Alaniz, Robert Dearth, Rupesh Kariyat. Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range. Scientific Reports, 2024; 14 (1) DOI: 10.1038/s41598-024-58672-w
  • Solanum ptychanthum or black nightshade, and Solanum carolinense, or Carolina horsenettle, also produce toxic berries and are native to Arkansas.
    • emmarrogers
      emmarrogers on 04 Jun 24
       
      Could we possibly research different types of weeds similar to the silver Nightshade, like one of these plants?
  • Sean Nash on 04 Jun 24
     
    There is a TON of data that can be measured & analyzed in a study like this. Easier to do in a less time-dependent way in the lab, but easier and more realistic (in vivo) to do if you have access to similar fields that are mowed and unmowed to differing extents. So many variables to examine and consider here for how plants may change physiologically based upon how we interact with them. This goes beyond that analogy I always use for fast evolution in Honors Biology: how dandelion populations become shorter based upon frequent mowing. This gets into the physiological responses. Very cool methinks.
emmarrogers

Overlooked keystone species in conservation plans of fluvial ecosystems in Southeast Eu... - 0 views

www.kmae-journal.org/...kmae210127.html

crayfish HSR HSR-2025 questions

shared by emmarrogers on 11 Sep 24 - No Cached
  • Since crayfish species are known to cover a wide spectrum of ecological functions they are considered as keystone species and ecosystem engineers. Therefore, their decline may substantially impair local biodiversity and ecosystem services.
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