< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf19_22 / pdf / 2007 / HQ2 / 01Mar07 / 24958962. pdf? T = P & P = AN & K = 24958962 & EbscoContent = dGJyMNHX8kSeqLc4yNfsOLCmr0mep7ZSsa24Sq % 2BWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LH4S7errgAA & D = eih >.</ ref > Gray Bat populations were estimated at approximately 2 million bats around the time they were placed on the Endangered Species list.
< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf19_22 / pdf / 2007 / HQ2 / 01Mar07 / 24958962. pdf? T = P & P = AN & K = 24958962 & EbscoContent = dGJyMNHX8kSeqLc4yNfsOLCmr0mep7ZSsa24Sq % 2BWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LH4S7errgAA & D = eih >.</ ref > Gray Bats also utilize a third type of cave, the dispersal cave, which they inhabit only during migration .< ref > V.
< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf19_22 / pdf / 2007 / HQ2 / 01Mar07 / 24958962. pdf? T = P & P = AN & K = 24958962 & EbscoContent = dGJyMNHX8kSeqLc4yNfsOLCmr0mep7ZSsa24Sq % 2BWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LH4S7errgAA & D = eih >.</ ref > Other pesticides linked with Gray Bat population decline include dieldrin and dieldrin ’ s parent compound aldrin, which have also increased mortality in other bat species .< ref > Sasse, D. B., R. L.
< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf19_22 / pdf / 2007 / HQ2 / 01Mar07 / 24958962. pdf? T = P & P = AN & K = 24958962 & EbscoContent = dGJyMNHX8kSeqLc4yNfsOLCmr0mep7ZSsa24Sq % 2BWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LH4S7errgAA & D = eih >.</ ref > Even though the manufacture of DDT ceased in 1970 and the manufacture of dieldrin and aldrin in October 1974, heavy contamination of the biota persisted.
< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf19_22 / pdf / 2007 / HQ2 / 01Mar07 / 24958962. pdf? T = P & P = AN & K = 24958962 & EbscoContent = dGJyMNHX8kSeqLc4yNfsOLCmr0mep7ZSsa24Sq % 2BWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LH4S7errgAA & D = eih >.</ ref >
< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf18_21 / pdf / 2006 / WLS / 01Mar06 / 21034851. pdf? T = P & P = AN & K = 21034851 & S = R & D = eih & EbscoContent = dGJyMNHr7ESeqa44yNfsOLCmr0mepq5Sr6m4SraWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LHjgO3p8gAA >.</ ref > These contributing factors play an especially important role in determining the internal conditions that foster cave fauna.
< http :// content. ebscohost. com. www. library. gatech. edu: 2048 / pdf19_22 / pdf / 2007 / HQ2 / 01Mar07 / 24958962. pdf? T = P & P = AN & K = 24958962 & EbscoContent = dGJyMNHX8kSeqLc4yNfsOLCmr0mep7ZSsa24Sq % 2BWxWXS & ContentCustomer = dGJyMOXf8km549 % 2BB7LH4S7errgAA & D = eih >.</ ref > However, Gray Bat populations do appear to be increasing with stringent conservation efforts and educational programs, making the future of the Gray Bat far brighter today than when it came under the protection of the Endangered Species Act 35 years ago.
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