Raspberry cane borers, raspberry crown borers, and red-necked cane borers are three garden pests that may be feeding upon raspberry canes. Wilted cane tips, random cane swellings, and reddened leaves/wilted canes will be the respective calling cards of the above-three mentioned raspberry predators.
black bears
A raspberry bush is not prickly it is rough.
Raspberry sticks are usually called raspberry canes and are the main stems of the raspberry plant bearing the fruit.
They grow new canes.
Raspberries send up new fruiting canes each year. If you did up some canes and replant it you will eventually have more raspberry plants.
In the northern US, raspberries are ripe around July on the previous year's canes (floricanes). Then some varieties (called fall bearing) produce fruit on the new canes (primocanes) from August until they freeze.
A consumer.
it depends on the speice
predator
If they are Summer fruiting raspberries then cut out the canes that fruited and tie in the new ones and they will fruit next year. The sooner after fruiting this is done the better.
scavengers
Yes, the plant upon which a bug feeds has nutrients. Plants represent food sources for bugs, who seek such nutrients as minerals in order to support such life-sustaining activities as growing, mating, respiring.
There are gardeners that plant berries in the spring. However, once you have a berry garden established, you don't have to plant more. Berries are perennial so you trim raspberry canes or trim runners in the spring.