Assessing the impact of the black summer fires on Kangaroo Island threatened invertebrates: towards rapid habitat assessments for informing targeted post-fire surveys

Q2 Agricultural and Biological Sciences Australian Zoologist Pub Date : 2022-07-13 DOI:10.7882/az.2022.029
J. Marsh, R. Glatz
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引用次数: 1

Abstract

The black summer fires of 2019–2020 burnt almost half of Kangaroo Island (KI), impacting large areas of high-quality native vegetation supporting many rare, endemic and/or undescribed invertebrate species. In the aftermath there was a need to survey for a range of species with few prior records and variable amounts of biological information. Therefore, a project was undertaken to perform Rapid Habitat Assessments (RHAs) for 13 priority KI invertebrate species, followed by species-specific surveys. RHAs are a method employed to quickly assess the presence/absence of key habitat features required by various taxa at a given site. Here, we used RHAs to assess the habitat of the 13 priority KI species and to prioritise a number of sites for species-specific surveys. Published data, expert knowledge and our own experience with the taxa, were used to define habitat features important to each taxon to target survey effort. Eight of the 13 priority taxa were located during surveys, within the burn scar or adjacent intact vegetation, revealing range extensions for five species. Species varied in susceptibility to fire and there is significant concern regarding the conservation status of limited-range KI endemics Moggridgea rainbowi KI micro-trapdoor spider, Zephyrarchaea austini KI assassin spider, and Psacadonotus insulanus KI robust fan-winged katydid. Given predictions of increasing climatic volatility, there is a need for methods to assess multiple species with differing life histories and limited associated data that quickly and accurately prioritise habitats for surveys.
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评估夏季黑色火灾对袋鼠岛受威胁无脊椎动物的影响:为有针对性的火灾后调查提供信息的快速栖息地评估
2019-2020年的黑色夏季大火烧毁了几乎一半的袋鼠岛(KI),影响了大面积的高质量原生植被,这些植被支持着许多稀有、特有和/或未描述的无脊椎动物物种。在此之后,有必要对一些物种进行调查,这些物种之前的记录很少,生物信息的数量也不确定。因此,开展了一个项目,对13种重点KI无脊椎动物物种进行了快速栖息地评估(RHAs),然后进行了特定物种的调查。RHAs是一种用于快速评估特定地点不同类群所需的关键生境特征是否存在的方法。在此,我们使用RHAs对13种KI优先物种的栖息地进行了评估,并对一些地点进行了物种特异性调查。利用已发表的数据、专家知识和我们自己对分类群的经验,定义了对每个分类群重要的栖息地特征,以目标调查工作。13个重点类群中有8个被定位在烧伤疤痕或邻近完整植被中,其中5个物种的活动范围扩大。物种对火的敏感性存在差异,有限范围的KI特有物种Moggridgea rainbowi KI微型陷门蜘蛛、Zephyrarchaea austini KI刺客蜘蛛和Psacadonotus insulanus KI强直扇翅蝈蝈螂的保护状况值得关注。鉴于对气候波动性增加的预测,有必要找到方法来评估具有不同生活史和有限相关数据的多种物种,以便快速准确地确定调查的优先栖息地。
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来源期刊
Australian Zoologist
Australian Zoologist Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
2.50
自引率
0.00%
发文量
43
期刊介绍: The Royal Zoological Society publishes a fully refereed scientific journal, Australian Zoologist, specialising in topics relevant to Australian zoology. The Australian Zoologist was first published by the Society in 1914, making it the oldest Australian journal specialising in zoological topics. The scope of the journal has increased substantially in the last 20 years, and it now attracts papers on a wide variety of zoological, ecological and environmentally related topics. The RZS also publishes, as books, and the outcome of forums, which are run annually by the Society.
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