Jervis Bay Booderee National Park Plot Network: Temporal Trends in Mammal Responses to Fire Reveals the Complex Effects of Fire-regime Attributes, 2003-2013

This terrestrial mammal trapping and spotlighting data package comprises time series data for 11 mammal species at 97 long-term sites in south-eastern Australia. Observations were made between 2003 and 2013.

The objectives of this research were to identify which fire regime attributes affect temporal change in the presence and abundance of Australian native mammals. In the associated research publication, the researchers explored how temporal aspects of fire regimes influenced both the presence and the conditional abundance of species. The key fire regime components examined as part of the research were: (i) severity of a major fire in 2003, (ii) the interval between the last major fire (2003) and the fire prior to that, and (iii) number of past fires. This long-term dataset has enabled quantification of the interactions between survey year and each fire regime variable, an ecological relationship notably missing from temporally-restricted studies.

In summary, multiple aspects of fire regimes influenced temporal variation in the presence and abundance of mammals. The best models indicated that 6 of the 11 species responded to two or more fire regime variables, with two species influenced by all three fire regime attributes. Almost all species responded to time since fire, either as an interaction with survey year or as a main effect. Fire severity or its interaction with survey year was important for most terrestrial rodents. The number of fires at a site was significant for species of terrestrial rodents and several other species. Key findings contain evidence of the effects on native mammals of heterogeneity in fire regimes. Refer to the relevant research paper for more detail.

The Jervis Bay Plot Network study forms part of the collection of data packages by this plot network. A synopsis of related data packages which have been collected as part of the Jervis Bay Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/jervis-bay-booderee-national-park.

本陆生哺乳动物诱捕与聚光灯调查（spotlighting）数据集包含澳大利亚东南部97个长期监测样地的11种哺乳动物的时间序列数据，观测时段为2003年至2013年。
本研究旨在明确哪些火灾制度（fire regime）属性会影响澳大利亚本土哺乳动物的出现率与种群丰度的时间动态变化。在相关研究论文中，研究者探讨了火灾制度的时间维度如何影响物种的出现率与条件丰度。本研究考察的核心火灾制度组分包括：(1) 2003年重大火灾的过火烈度；(2) 末次（2003年）重大火灾与前一次重大火灾的间隔时长；(3) 历史火灾发生次数。本长期数据集得以量化调查年份与各火灾制度变量间的交互作用，而这类生态学关系在时间尺度受限的研究中往往缺失。
综上，火灾制度的多个维度均会影响哺乳动物出现率与种群丰度的时间变异。最优模型显示，11个物种中有6个对2个及以上火灾制度变量存在响应，另有2个物种受全部3种火灾制度属性的影响。几乎所有物种均对火后间隔时长存在响应，该响应表现为与调查年份的交互效应，或作为主效应存在。过火烈度及其与调查年份的交互效应对多数陆生啮齿类物种至关重要。样地的历史火灾次数对陆生啮齿类及其他数个物种具有显著影响。核心研究结果证实了火灾制度异质性对本土哺乳动物的影响效应，详细内容请参阅相关研究论文。
杰维斯湾样地网络（Jervis Bay Plot Network）研究是该样地网络数据集合集的组成部分。杰维斯湾样地网络完整计划中收集的相关数据集概览可通过以下链接获取：http://www.ltern.org.au/index.php/ltern-plot-networks/jervis-bay-booderee-national-park。