Temporal Trends in Mammal-responses to Fire Reveals the Complex Effects of Fire-regime Attributes, 2015

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夜间聚光灯调查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。调查时段为2003年至2013年。
本研究旨在明确哪些火制度（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，研究者探讨了火制度的时间维度如何同时影响物种的出现率与条件丰度。
本研究考察的核心火制度组分包括：(1) 2003年重大火灾的过火强度；(2) 最近一次（2003年）重大火灾与此前一次重大火灾的间隔时长；(3) 历史过火次数。
本长期数据集得以量化调查年份与各火制度变量间的交互效应，而这类生态关系在受时间限制的研究中往往缺失。
综上，火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。
最优模型结果显示，11个物种中有6个对2种及以上火制度变量产生响应，另有2个物种受全部3项火制度属性的影响。
几乎所有物种均对火后间隔时长产生响应，这种响应既可能表现为与调查年份的交互效应，也可能表现为主效应。
过火强度及其与调查年份的交互效应对多数陆生啮齿类物种具有显著影响。
样地的历史过火次数对陆生啮齿类及其他数个物种的种群动态具有显著影响。
核心研究结果证实，火制度的异质性会对本土哺乳动物产生影响。
如需了解更多细节，请参阅相关研究论文。
杰维斯湾样地网络（Jervis Bay Plot Network）研究属于该样地网络所汇编数据集的一部分。
杰维斯湾样地网络完整项目所收集的相关数据集概要，可通过以下链接获取：http://www.ltern.org.au/index.php/ltern-plot-networks/jervis-bay-booderee-national-park.