Summary. The species interactions discussed above are only some of the known interactions that occur in nature and can be difficult to identify because they can directly or indirectly influence other intra-specific and inter-specific interactions.s a result, ecological interactions between individual organisms and entire species are often difficult to define and measure and are frequently dependent on the scale and context of the interactions (Harrison & Cornell 2008; Ricklefs 2008; Brooker et al. 2009).
Generally, people get sick within four to 48 hours after eating spoiled or contaminated food, says HowStuffWorks. According to KidsHealth, food poisoning results from eating foods that contains harmful bacteria or toxins. Bacteria are found everywhere, especially in spoiled leftovers.
Diarrhea, itchy lips and skin are symptoms of food allergy. Eating out may cause diarrhea from stress or from unusual foods. Diarrhea after fast food or eating in a cleanless restaurant may be from food poisoning.Related Articles: 1  Travelerâs Diarrhea. 2  Intestinal Worms.3  Toddlerâs Diarrhea. 4  Food Poisoning.5  Food Allergies.ood that is not chewed enough is hard to digest, irritates the bowel and causes loose stools with pieces of food in it. Excessive amount of fruits, chewing gum or âlow calorie foodsâ high in fructose or sorbitol may cause diarrhea, especially in children.