Plants make up most of the Pine Barrens. For example, pine trees such as short-needle, pitch pine, jack pine, long-needle, yellow pine, and many others make up most of the pine forest in the Pinelands. Other trees include pines, oaks and cedars. Due to the roots of these cedars, the water in the Pine Barrens appears a brownish-red color. This happens because the roots emit red-colored pigments into the soil which then leaches into the water. Even though the amount of red pigment released is very small, due to the large amount of cedars in pine forests, the water is affected. The Pine Barrens' primary crops include blueberries and cranberries. Many rare plants are also found in the Pinelands. One of them is the pitcher plant which is linked to the Venus Fly Trap. Plants like these have an influence on how nitrogen is depleted in the Pine Barrens and also how the Pine Barrens got their name, nothing like vegetables growing there. The pitcher plant helps prevent pollution from entering lakes as well as preventing flooding. The lakes of the pine forest are home to the tree frog. These forests are also home to many other animals like cranes, water snakes, turtles, salamanders and other frogs. The Pine Barrens today face many dangers. The most dangerous is the effect of industrialization. Many industries contribute to massive pollution of water, land and air. This has a huge impact on the Pinelands ecosystem and the animals that live there. Industrialization also leads to the construction of new houses, which is detrimental to the Pinelands because the Pinelands are being destroyed little by little every day. This ecosystem is too precious to be wasted, it must be preserved. Pollution has endangered more than forty species of birds. Acid rain also causes the extinction of many species. Acid rain is the term used to describe chemicals deposited by rain. These chemicals move through the soil and affect many plants and animals. Acid rain is a global problem that affects all ecosystems; Acid rain must be controlled by limiting the amount of pollution released into the air. Wildfires are another major problem affecting the Pine Barrens. There are up to four hundred forest fires a year.