Prosser and Brain have done the research and have come up with the following conclusions:
- Habitat alteration and non-native species are the most important drivers of the decline in native terrestrial plant diversity in North America.
- No listed species in the U.S. or Canada faced a singular threat. In the recovery plans for all listed species, several threats were identified as contributing to their risk of extirpation or extinction.
- Pesticides, specifically herbicides, represent a micro-scale contributor to the decline of plant biodiversity in North America relative to other drivers.
(Note: the above three points are taken verbatim from text in the article, although they are not presented as bullets in the subject article. Emphasis using bold and italics has been added).
In their conclusion, they argue that pesticides and herbicides make an easy target for litigation, even though they contribute minimally to the extirpation or extinction of native plants .
On the other hand, Paraquat is an herbicide that not only has been banned in over 50 other nation-states, and has been linked as a probable cause of Parkinson’s Disease in the book Ending Parkinson’s Disease: A Prescription For Action and in this February 2024 article on the EarthJustice website: This Weed Killer Is Linked to Parkinson’s. Why Isn’t It Banned Yet?
I would suggest that the authors of the article on causes contributing to reduction of native plant species are failing, in their words, to see the forest by focusing on the trees. I am a native plant advocate who also has Parkinson’s Disease. I don’t know whether I have been exposed to Paraquat in the past. Just because pesticides and herbicides are not a major factor in the reduction of native species doesn’t mean I should just ignore the bigger picture of the effect of herbicides like Paraquat on the species Homo sapiens, many of whom, including myself, have displaced other native occupants of this territory, like the Apaches, the Tonkawas, and other tribal groups who are members of the same Genus and species.
This post has covered most of my main interests: scientific research, Parkinson’s Disease, and native plants. All that’s missing is some music:
The Parkinson’s Anthem (We Ain’t Givin’ Up Hope)
#nativeplants #research #parkinsonsdisease #advocacy
Crossvine (Bignonia capreolata), for instance, and Coral Honeysuckle (Lonicera sempervirens) which are both favored by Hummingbirds are blooming in profusion, as are the Texas Bluebonnets (Lupinus texensis). 
bob's brain: living well with a movement disorder and other comorbidities 