Immigration by short-tongued bumble bees toward higher altitudes has also occurred as a result of warming and climate change, and has created new competition for "Bombus balteatus" to ascertain limited floral resources.
Immigration by short-tongued bumble bees toward higher altitudes has also occurred as a result of warming and climate change. Immigration by short-tongued bumble bees toward higher altitudes has created new competition for "Bombus balteatus". This was to ascertain limited floral resources.