Mammals and Reptiles of the Gorgon Gas Development EIS/ERMP - Technical appendix C2

Mammals - Barrow Island is recognised as an important refuge for native mammal species that have either declined in numbers or become extinct on the mainland. The island supports 13 species of resident terrestrial mammals, with a further two species of bat recorded as vagrants to the island.

All of the terrestrial mammal species of Barrow Island, except bats, were either trapped or observed within the proposed Development area. Bats are likely to forage in the Development area, but have not been recorded.

All of these species are widespread on the island, with the exception of the water-rat which is confined to coastal areas. There are no distinctive habitat features within the proposed Development area that are likely to support unusually high population densities of any mammal species.

The small black-flanked rock-wallaby population does not occur within the proposed Development area.

Reptiles and Amphibians - The reptile and amphibian assemblage on Barrow Island is depauperate in comparison with the herpetofauna of the adjacent mainland. Barrow Island is home to 43 species of reptiles comprising dragons, legless lizards, geckoes, skinks, blind snakes, monitors, snakes and one frog species.

Most of these species, or their habitats, are widely distributed on Barrow Island. Twenty-seven species, or more than half of the terrestrial reptiles known to occur on Barrow Island, have been recorded in the vicinity of the Development area.

The reptile assemblage along the proposed domestic gas pipeline route on the mainland is expected to be degraded by feral predators and habitat alteration through livestock grazing. The EPBC Act-listed Pilbara olive python is restricted to rocky habitats in the Pilbara and is not expected to occur in the sandy habitats along the domestic gas pipeline corridor.

哺乳类——巴罗岛（Barrow Island）被认定为重要的本土哺乳类避难所，这些物种在大陆上要么种群数量衰退，要么已区域性灭绝。该岛栖息有13种陆生常驻哺乳类，另有2种蝙蝠被记录为该岛的偶见物种。

除蝙蝠外，巴罗岛所有陆生哺乳类物种均在拟建开发区内被诱捕或观测记录到。蝙蝠虽可能在开发区内觅食，但尚未有正式记录。

除水鼠仅局限于沿海区域外，上述所有物种在全岛范围内均广泛分布。拟建开发区内不存在独特的生境特征，能够支撑任何哺乳类物种出现异常高的种群密度。

小型黑纹岩袋鼠种群并未出现在拟建开发区范围内。

爬行类与两栖类——相较于邻近大陆的爬行两栖动物区系（herpetofauna），巴罗岛的爬行与两栖类物种组成相对贫乏。巴罗岛现有43种爬行类，涵盖飞龙蜥、无腿蜥蜴、壁虎、石龙子、盲蛇、巨蜥、蛇类以及1种蛙类。

其中多数物种及其栖息生境在巴罗岛分布广泛。已知在巴罗岛出现的陆生爬行类中，已有27种（占比超半数）在开发区周边区域被记录到。

拟建大陆境内天然气管道沿线的爬行类群落预计将因野化捕食者的侵扰以及畜牧放牧引发的生境改变而退化。被列入《环境保护与生物多样性保护法案》（EPBC Act）的皮尔巴拉橄榄蟒仅栖息于皮尔巴拉地区的岩石生境中，预计不会出现在国内天然气管道沿线的沙质生境里。