21. The massive and rapid expansion of the cattle egret's migratory and dispersive, and this has helped the species'range expansion . 22. If it could only find a mate, there could be a staggering range expansion into a whole new hemisphere. 23. The red-tailed hawk is widespread in North America, as well as range expansions of many other species of birds. 24. There are colonies elsewhere in southern Europe, and this species has undergone a dramatic range expansion in recent decades. 25. While no active restoration has occurred in West Virginia, elk from Kentucky have entered the state through natural range expansion . 26. Given its preference for warmer weather, it can be assumed that the restriction of range expansion is due to climate. 27. Apart from " hyalinus " they are all native to mainland Asia and show no tendency to major range expansions . 28. Genetic structuring can be caused by migration due to historical climate change, species range expansion or current availability of habitat. 29. The outer periphery of a population's habitat tends to be extreme; hence, the reason range expansion is kept in check. 30. :I concur with the addition of 41.136.53.145, and note that it represents a slight range expansion from Jivesh's usual territory.
