The indirect threats of invasive species: 1  Changing food webs: Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. 2  The invasive species may provide little to no food value for wildlife.uman health and economies are also at risk from invasive species. The impacts of invasive species on our natural ecosystems and economy cost billions of dollars each year. Many of our commercial, agricultural, and recreational activities depend on healthy native ecosystems.
The common side effect is bleeding. Less common side effects may include tissue death and purple toes syndrome. Use is not generally recommended during pregnancy. It is recommended that the effects of warfarin typically be monitored by checking prothrombin time every one to four weeks.
A study at the prestigious Massachusetts General Hospital in Boston looked at the effect of varying dietary vitamin K intake on the INR in patients receiving anticoagulation therapy with warfarin. 6 During the five-week study, 60 adults taking warfarin recorded the amounts of all food items and medications consumed, while the scientists recorded week-to-week changes in vitamin K intake, warfarin dose, and INR.