Search CO Bat Matrix > Big free-tailed bat (Nyctinomops macrotis) Threat Matrix
Species Profile
While potentially large sizes of maternity colonies could magnify the impacts from disturbances, access to such roosts should rarely occur. Activities such as large-scale water impoundment could cause internal disturbances but occur in a manner that provides affected individuals the opportunity to relocate to alternate roosts. Haymond et al. (2002) provide evidence that alternate roosts are used by this species even in cases of large maternity colonies due to large fluctuations in colony size from day to day. Impacts from such disturbances could result in loss of habitat which will impact local populations.
| Scope | Severity | Immediacy |
| Insignificant | Insignificant | Insignificant |
| Internal Disturbances | U |
