swamp stonecrop

Crassula helmsii
(swamp stonecrop)
Plants
Exotic

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Impacts

22 results for Crassula helmsii (swamp stonecrop)

Results per page:

Impact ID	Scientific Name	Impact Type	Study Type	Study Location	Impact Description	Reference
5575	Crassula helmsii	Food Web	Observational	Field	In ponds where Crassula helmsii was the dominant species there was an increase in total...	39679
5576	Crassula helmsii	Water Quality	Experimental	Laboratory	Lab experiments showed that Crassula helmsii was a copper accumulator and that tissue Cu...	39683
5601	Crassula helmsii	Competition	Anecdotal	N/A	Crassula helmsii can limit water circulation and change oxygen regimes outcompeting native...	29344
5602	Crassula helmsii	Habitat Alteration	Anecdotal	N/A	Crassula helmsii is restricting the breeding of Triturus cristatus in areas where...	29474
5603	Crassula helmsii	Other	Experimental	Laboratory	When smooth newt eggs were laid on Crassula helmsii the eggs hatched later but there were...	29482
5640	Crassula helmsii	Competition	Observational	Field	Crassula helmsii suppresses surrounding epiphytic and planktonic algae more than the...	29479
5641	Crassula helmsii	Competition	Anecdotal	N/A	In some areas of the United Kingdom this Crassula helmsii is highly invasive and it...	29339
5642	Crassula helmsii	Competition	Observational	Field	Crassula helmsii shows extreme competitiveness, dominates many sites, and can cover the...	29479
5643	Crassula helmsii	Competition	Anecdotal	N/A	In neglected nursery tanks it was observed that Crassula helmsii took over and chocked out...	29473
5644	Crassula helmsii	Competition	Observational	Field	Crassula helmsii was observed to outcompete Potomogeton spp. in England.	29340
5645	Crassula helmsii	Competition	Experimental	Laboratory	Crassulacean acid metabolism confers a competitive advantage for Crassula helmsii in...	29481
5646	Crassula helmsii	Competition	Observational	Field	Crassula helmsii suppresses germination of other species up to 83%, yet there was no...	29482
5647	Crassula helmsii	Infrastructure	Anecdotal	N/A	Dense mats of Crassula helmssi choked ponds and clogged drainage ditches in Europe.	29357
5648	Crassula helmsii	Recreation	Anecdotal	N/A	Dense mats of Crassula helmsii can negatively impact recreation by reducing the...	29357
5650	Crassula helmsii	Competition	Anecdotal	N/A	Crassula helmsii reduced the abundance of Elodea spp. after the introduction into...	39685
5651	Crassula helmsii	Competition	Observational	Field	It was observed that for every 10% increase in Crassula helmsii there was a 6% decrease in...	39943
5652	Crassula helmsii	Habitat Alteration	Anecdotal	N/A	In areas where presentCrassula helmsii can restrict light penetration and deplete carbon...	39865
5653	Crassula helmsii	Competition	Experimental	Laboratory	Crassula helmsii is able to remain green in the winter and able to continue photosynthetic...	39643
5654	Crassula helmsii	Other	Experimental	Laboratory	Crassula helmsii suppressed the germination of purple loosestrife and willowherb with...	29482
5655	Crassula helmsii	Recreation	Anecdotal	N/A	Crassula helmsii is one of ten weed species in England that have a negative impact on...	39944
7369	Crassula helmsii	Habitat Alteration	Experimental	Field	Crassula helmsii dominated enclosures negatively affected spawning, egg survival, and...	42282
10010	Crassula helmsii	Competition	Observational	Laboratory	In a laboratory experiment, Crassula helmsii became dominant over Littorella...	45518

Data Disclaimer: These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.