Human-induced causes Human activities, such as overconsumption, economic policies, and mismanagement of resources, can also lead to scarcity. Overfishing, for instance, has led to the depletion of fish stocks in many parts of the world, creating scarcity for the fishing industry and those dependen...
Humans hunt sharksfor their meat, internal organs, skin, and finsin order to make products such as shark fin soup, lubricants, and leather. Sharks are a valuable part of marine ecosystems, but overfishing threatens some shark populations. What happens when a shark dies? And, scavengers were f...
Learn what is eutrophication. Understand what causes eutrophication and how does it occur. Discover types of eutrophication and preventive solutions to eutrophication. Related to this QuestionWhat is eutrophication? What does eutrophication remove from water? Define artificial eutrophication. What is eutrophi...
It is unclear if resident gray whales are genetically distinct from other gray whales, but we suggest that such ecological plasticity in feeding will be an important trait with the increasingly rapid heating of the Northern cryosphere projected to occur in the coming decades [...
Where does eutrophication occur? How is runoff harmful to marine organisms? What effect can deforestation have on groundwater? What are the dangers of water pollution? How does overfishing affect the hydrosphere? What effects are associated with groundwater pumping? What are the consequences of gully...
The overall effects of aquatic contamination are reflected in fisheries: together with overfishing, the contamination of water is of the greatest influence on fish stocks and fish diversity. An important research area is always the appearance of new materials in the environment. At present this ...
“…Storms that used to occur every 100 years can be expected between 5 and 33 times as often.” Were you impacted by “Nor’easter-cane” Sandy?” Statisticians will debate whether it was a 1 in 100 year storm — or something worse. Insurance companies will calculate how many tens or ...
If we had free will and had access to the same information, we’d all make the same decisions. If you don’t think we would make the same decisions, what is it about each of our free wills that causes those decisions to differ? In reality, there is no free will. There are only ...
Overfishing certain species of fish and shellfish like snappers, barracudas and even lobsters. Well, all of these creatures feed on snails, worms and other organisms that eat coral.So depleting the number of lobsters, for example, means that we are adding to the threat of coral decline. Sea...
Influences leading to substantial increases in the extent of algal cover on the reef include increased sewage output, sedimentation, high nutrient levels stimulating macroalgal growth, and overfishing and associated declines in herbivory (Pastorok & Bilyard 1985, Lapointe 1989, Hughes 1994). These ...