Metapopulations in the Context of Patch Dynamics. A metapopulation is a population of populations (Levins 1969,1970); in which distinct subpopulations (local populations) occupy spatially separated patches of habitat.
Osteoporosis is a disease where decreased bone strength increases the risk of a broken bone. It is the most common reason for a broken bone among people who are old.Bones that commonly break include the back bones, the bones of the forearm, and the hip.Until a broken bone occurs there are typically no symptoms.steoporosis is a disease where decreased bone strength increases the risk of a broken bone. It is the most common reason for a broken bone among people who are old.
What is Arthrosis? Arthrosis is a degenerative disease of the joint where the cartilage lining the joint erodes over time. This disease is usually caused by chronic wear and tear of the cartilage around a joint, eventually leading to the cartilage wearing away completely, often resulting in your joint having bone-to-bone contact.