
From the air in summer, the view of the forest along the Rio Grande looks like green ribbons surrounding both sides of a muddy river. The areas on each side of a fresh watercourse such as streams and rivers are called riparian areas. The river oasis and forest known as the "bosque" meander through the high semi-arid grasslands of the Albuquerque area. Bosque is Spanish for "woods." In the Southwest, "bosque" is used to describe the cottonwood area next to the river. The area is very beautiful but needs our attention and protection. The total area that drains into the Rio Grande is called a watershed. Common plants are the Rio Grande, or valley cottonwood, Russian olive, four-winged salt bush, willows and salt cedar. Animals include ducks, muskrats, beavers, skunks, roadrunners, and various mice and other mammals such as coyotes. The community of plants and animals and the physical and chemical environment with which it interacts is called an ecosystem. This ecosystem makes up the unique environment that is the bosque. Many native cottonwood and willow areas have been taken over by newer immigrant plants such as Russian olives, Chinese elms, and tamarisk. These new plants do not rely on spring flooding for their reproduction. Dams and flood control structures do not allow the flooding that helps cottonwood seeds to grow. Cottonwood forests are dying. Today, new cottonwood trees are rare. Non-native plants or animals that are brought into an ecosystem by humans either accidentally or on purpose are called "introduced species." The plants and animals that live in the bosque ultimately die and decompose and form the litter that supports the food web. Animals that feed on dead animals are called scavengers. The plants and animals that die decompose because bacteria and fungi feed on dead plants and animals resulting in simpler substances. Insects and other animals without backbones (invertebrates) feed on the litter. The connections between organisms in an ecosystem that shows what eats what is called the food web. The energy from sunlight is passed from producers (green plants) to consumers (animals that eat plants to animals that eat other animals). Decomposers are part of a community of plants and animals that eat dead plants, animals, or other organic matter. There are some plants and animals that live on or in other plants or animals ard are called parasites. A flea or tick that lives on a coyote is a parasite. The coyote is called the host. A predator is an animal such as a coyote that devours other animals, such as birds, or small mammals, such as mice. The animals that are devoured are called the prey.
There are about 20 plants and animals in the bosque that are endangered or threatened with extinction. A plant or animal is called "endangered" if it is in danger of going extinct. The continued health of other species such as the Rio Grande Cottonwood is of concern. The variety of plants and animals in an ecosystem is called the biodiversity. Biodiversity is important for the continued health of an ecosystem. Sustainable development is linked to the health and diversity of the plants and animals.
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Note: Lesson plan for 5th grade students, the relationship between living things and their environment relates to APS Standard 1 Life Sciences Worksheet
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