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Ecology and Conservation Significance of Alkaline Wetlands in LUTRUWITA/Tasmania, Australia 澳大利亚LUTRUWITA/Tasmania碱性湿地的生态学及其保护意义
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-04-13 DOI: 10.1111/aec.70216
James B. Kirkpatrick, Jayne Balmer, Jennie Whinam, Michael J. Brown
{"title":"Ecology and Conservation Significance of Alkaline Wetlands in LUTRUWITA/Tasmania, Australia","authors":"James B. Kirkpatrick,&nbsp;Jayne Balmer,&nbsp;Jennie Whinam,&nbsp;Michael J. Brown","doi":"10.1111/aec.70216","DOIUrl":"https://doi.org/10.1111/aec.70216","url":null,"abstract":"<div>\u0000 \u0000 <p>Groundwater-dependent wetlands with alkaline water chemistry are typically associated with carbonate rocks such as limestone and dolomite and often display distinctive landforms, soils and biota. A form of such a wetland type occurs in association with alkaline springs and seepages of inland superhumid, maritime southwest Lutruwita/Tasmania. Unlike commonly described calcareous and alkaline wetland types, the Tasmanian examples are characterised by low biomass and minimal organic soil development, despite occurring within landscapes otherwise dominated by ombrogenous blanket peatland. These peat-bound karstic wetlands are rare, include distinctive geomorphic features and processes and support both a geographically restricted endemic vascular plant flora and living freshwater stromatolites. Collectively these characteristics contribute to the natural values of the Tasmanian Wilderness World Heritage Area. Knowledge about peat-bound karstic wetlands and their vulnerability to changing fire regimes and climate remains limited. The ecosystem processes that inhibit peat accumulation and prevent woody plant invasion are poorly known but essential for the persistence of this rare ecosystem. Here we examine the distribution and morphology of peat-bound karstic wetlands and present results of nine years of vascular plant monitoring. We found peat-bound karstic wetlands are restricted to locations where calcium rich alkaline groundwater discharge is sufficient to prevent neutralisation by acidic surface water. They are lotic wetlands that have a frequent but intermittent (day-month) shallow flow and comprise poorly developed stream beds, associated alluvial deposits and pools. Vegetation along permanent transects showed either little change or minor increases in the abundance of acidic peatland species. Ad hoc observations and aerial imagery suggest that these wetlands are subject to infilling and colonisation by species from adjacent vegetation over longer time scales. Fire frequency may restrict plant growth and woody plant colonisation, while dissolution and flushing of organic matter by flow of alkaline groundwater may be important in preventing peat accumulation.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Natural Values and Threats of the Tasmanian Wilderness World Heritage Area: Changed Perspectives Over Four Decades Since Listing 塔斯马尼亚荒野世界遗产区的自然价值和威胁:自列入名录以来四十年的变化视角
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-04-12 DOI: 10.1111/aec.70215
Michael M. Driessen, Jayne Balmer, Jason Bradbury, Rolan Eberhard, Rosemary Gales, Steve Leonard, Micah Visoiu, Jennie Whinam
{"title":"Natural Values and Threats of the Tasmanian Wilderness World Heritage Area: Changed Perspectives Over Four Decades Since Listing","authors":"Michael M. Driessen,&nbsp;Jayne Balmer,&nbsp;Jason Bradbury,&nbsp;Rolan Eberhard,&nbsp;Rosemary Gales,&nbsp;Steve Leonard,&nbsp;Micah Visoiu,&nbsp;Jennie Whinam","doi":"10.1111/aec.70215","DOIUrl":"https://doi.org/10.1111/aec.70215","url":null,"abstract":"<div>\u0000 \u0000 <p>The Tasmanian Wilderness World Heritage Area (TWWHA) meets seven of the ten criteria for World Heritage listing, an achievement not surpassed by any other property. Here we document how understanding of the values that meet the four natural criteria have changed since the TWWHA was first inscribed in 1982, as well as changes in threats and their management. Since the original nomination, the highly unusual freshwater-marine ecosystem in Bathurst Channel was revealed, and buttongrass moorland and alpine sclerophyll shrubland were recognised as globally distinctive ecosystems. The main threats have shifted from mining, forestry and hydro-electric power generation to bushfires, invasive species and climate change. Climate change exacerbates other threats, as evidenced by greater bushfire risk caused by increased lightning ignited fires. The fire management paradigm has shifted from fire exclusion to landscape-scale planned burning aimed at maintaining fire-dependent values and vegetation mosaics as well as reducing bushfire risk and implementing cultural landscape management. Increasing visitation and information sharing via social media are placing more pressure on the TWWHA through increasing access to environmentally sensitive sites and unauthorised activities. While the size and integrity of the TWWHA confer a degree of security and resilience to the natural values within it, pressure on its environment from cumulative and compounding threats will escalate. These threats, impacting at both landscape and local scales, require strong management responses. With continued degradation of natural environments globally, the importance of the protection of geodiversity and biodiversity in the TWWHA will increase.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecology of Arboreal Mammals of Neotropical Forests: A Review of the State of Knowledge 新热带森林树栖哺乳动物生态学研究进展
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-04-10 DOI: 10.1111/aec.70213
Erika García-Casimiro, Antonio Santos-Moreno
{"title":"Ecology of Arboreal Mammals of Neotropical Forests: A Review of the State of Knowledge","authors":"Erika García-Casimiro,&nbsp;Antonio Santos-Moreno","doi":"10.1111/aec.70213","DOIUrl":"https://doi.org/10.1111/aec.70213","url":null,"abstract":"<div>\u0000 \u0000 <p>Monitoring neotropical arboreal mammals is essential for understanding their biology, their ecological roles in forest ecosystems and for guiding effective conservation efforts. However, despite their diversity and ecological importance, research on this taxon remains limited. A systematic literature review was conducted to assess the state of knowledge on arboreal and semi-arboreal mammals in neotropical forests. The review aimed to identify research trends, specifically study methods used, publication trends, geographic distribution of research, protected areas research, target species, main topics addressed, knowledge gaps and future research challenges. A total of 312 studies were identified with most research conducted in Brazil (<i>n</i> = 151, 49%), followed by Mexico (<i>n</i> = 34, 11%), Peru (<i>n</i> = 29, 9%) and Costa Rica (<i>n</i> = 28, 9%). Most research was conducted in protected areas (<i>n</i> = 209, 67%). Small mammals have mainly been studied using live-capture traps (<i>n</i> = 74, 69%), while larger mammals have predominantly been studied with direct observations on transects (<i>n</i> = 108, 52%). The order with the highest number of studies was Primates (39%), followed by Rodentia (38%), Didelphimorphia (15%), Carnivora (4%), Pilosa (3%) and Microbiotheria (1%). The main research topics deal with behaviour (26%), species assessment (19%) and the effect of human activities (16%). There was limited research on conservation (4%) and activity patterns (2%). Research on neotropical arboreal mammals is still scarce, particularly for nocturnal and cryptic species. Out of 592 species, only 240 (40%) have been the focus of scientific studies. The lack of research on many species can be attributed to factors such as limited accessibility, challenges in studying them due to their geographic distribution, small population sizes or elusive behaviours. It is necessary to increase efforts for their evaluation to support the development and planning of better conservation strategies.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Florach.Ar: An Open-Access Data Platform and Novel Digital Methodology for Large-Scale Biodiversity Assessment in the Patagonian Steppe Florach。巴塔哥尼亚草原大尺度生物多样性评估的开放获取数据平台和新型数字方法
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-04-09 DOI: 10.1111/aec.70217
María Rosa Klagges, Diego Andrés Firmenich
{"title":"Florach.Ar: An Open-Access Data Platform and Novel Digital Methodology for Large-Scale Biodiversity Assessment in the Patagonian Steppe","authors":"María Rosa Klagges,&nbsp;Diego Andrés Firmenich","doi":"10.1111/aec.70217","DOIUrl":"https://doi.org/10.1111/aec.70217","url":null,"abstract":"<div>\u0000 \u0000 <p>The vast expanse and logistical challenges of the Patagonian steppe severely limit large-scale ecological monitoring, creating critical information gaps for the management of an ecosystem threatened by desertification. This work presents an innovative methodology to overcome these limitations, based on high-resolution systematic sampling and the use of customized digital tools for standardized field data collection. The result was a database with more than 40 000 georeferenced interception records, covering a sampling area of 90 000 km<sup>2</sup>, systematised, and published on the open-access platform <i>florach.ar</i>. Analysis of these data allowed for the characterisation of the floristic composition, identifying 172 plant taxa belonging to 41 botanical families, with a clear dominance of Asteraceae, Poaceae and Solanaceae. Ten main plant communities were also differentiated, and indicators of ecosystem condition were quantified. The average surface area of bare soil is 65%, a key indicator that demonstrates the magnitude of desertification processes in the region. The platform serves as an unprecedented diagnostic tool and baseline for conservation planning and scientific research, promoting a replicable open science model for other arid regions.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effectiveness of Prescribed Fire for Native Grassland Restoration and Exotic Weed Control Differs Between Soil Types 不同土壤类型对原生草地恢复和外来杂草控制效果的影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-04-09 DOI: 10.1111/aec.70211
Laura C. Rigby, Isabelle Hally, Catherine Leigh, A. Mark Osborn, Akane Uesugi
{"title":"The Effectiveness of Prescribed Fire for Native Grassland Restoration and Exotic Weed Control Differs Between Soil Types","authors":"Laura C. Rigby,&nbsp;Isabelle Hally,&nbsp;Catherine Leigh,&nbsp;A. Mark Osborn,&nbsp;Akane Uesugi","doi":"10.1111/aec.70211","DOIUrl":"https://doi.org/10.1111/aec.70211","url":null,"abstract":"<p>The presence of invasive species often makes the use of prescribed fire for native grassland restoration challenging, as fire could also facilitate exotic plant invasion. The outcome of fire treatment may depend on variation in soil environments. Nutrient-rich soils that are heavily invaded by exotic plants may burn at higher temperatures and damage native plant species recovery. A high nutrient availability may also facilitate post-fire establishment of exotic species that can readily exploit available nutrients. We tested the effect of prescribed fire within a temperate grassland reserve in southeastern Australia that includes two soil types with contrasting nutrient availability—nutrient-poor red soil and nutrient-rich grey soil. A plant survey of the post-fire community showed that fire in red soil reduced the proportion of exotic cover by 39%, but fire in grey soil maintained exotic dominance and reduced native grass and forb abundance by 30% and 71%, respectively. Moreover, fire altered community composition more in red soil than in grey. Partitioning of community dissimilarity further suggested that fire in red soil created a unique native community that differed from unburnt plots, whereas fire in grey soil reduced the abundance of some species without replacing them with individuals of other species. Exotic biomass was correlated with maximum burning temperature, but variation in temperature did not explain the observed differences in native community response to fire between the soil types. Fire increased disparity in soil nutrient content between soil types, potentially making red soil more suitable for some native species. While our study was limited to a single landscape, the results suggest that fire in nutrient-poor soils could be an effective management tool for suppressing exotic plant invasion and increasing native β-diversity across the landscape. But the same practice could be ineffective, or even harmful, in nutrient-rich soils that are already heavily invaded by exotic species.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70211","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Passive Acoustic Monitoring of Tasmanian Masked Owls and Swift Parrots: An Effective Tool for Conservation Actions 塔斯马尼亚蒙面猫头鹰和雨燕鹦鹉的被动声学监测:保护行动的有效工具
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-03-28 DOI: 10.1111/aec.70209
Charley Gros, Phil Bell, Matthew H. Webb
{"title":"Passive Acoustic Monitoring of Tasmanian Masked Owls and Swift Parrots: An Effective Tool for Conservation Actions","authors":"Charley Gros,&nbsp;Phil Bell,&nbsp;Matthew H. Webb","doi":"10.1111/aec.70209","DOIUrl":"https://doi.org/10.1111/aec.70209","url":null,"abstract":"<p>The Tasmanian masked owl (<i>Tyto novaehollandiae</i> subsp. <i>castanops</i>) and swift parrot (<i>Lathamus discolor</i>) rely on old forest features that are declining across their ranges in Tasmania, Australia. Under the Australian Environment Protection and Biodiversity Conservation Act 1999, the swift parrot is listed as Critically Endangered, and the Tasmanian masked owl as Vulnerable. Their elusive behaviour and high mobility make monitoring difficult, hindering conservation actions. Passive acoustic monitoring can greatly increase spatial and temporal survey coverage, though the identification of the species' vocalisations within large audio datasets remains challenging. We deployed automated recording units at 101 sites in Tasmania's native forests to collect a large and representative acoustic dataset. We trained a ResNet convolutional neural network model to automate call detection for both the Tasmanian masked owl and the swift parrot. Our model demonstrated high performance, with a recall of 97.7% and precision of 97.8% for the Tasmanian masked owl, and a recall of 87.5% and precision of 88.4% for the swift parrot, outperforming both BirdNET and Kaleidoscope Lite. Through two real-world applications, we illustrated how our method provides detailed quantitative insights into habitat use patterns over extended spatial and temporal scales. Our deep learning model for automated call detection provides a framework to reliably and efficiently analyse acoustic datasets across large spatiotemporal scales, enhancing PAM's application to conservation planning.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genetic Connectivity of Profilicollis altmani in Seabirds: Effects of Host Trophic Ecology on Chilean Coasts 海鸟阿尔氏侧纹线虫的遗传连通性:智利海岸宿主营养生态的影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-03-24 DOI: 10.1111/aec.70208
Mauren Vergara, Sara M. Rodríguez, Maribet Gamboa
{"title":"Genetic Connectivity of Profilicollis altmani in Seabirds: Effects of Host Trophic Ecology on Chilean Coasts","authors":"Mauren Vergara,&nbsp;Sara M. Rodríguez,&nbsp;Maribet Gamboa","doi":"10.1111/aec.70208","DOIUrl":"https://doi.org/10.1111/aec.70208","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Profilicollis altmani</i> is an acanthocephalan parasite widely distributed along the Pacific and Atlantic coasts of the Americas, where gulls serve as its definitive hosts. This study investigates the genetic structure of <i>P. altmani</i> populations in relation to the life-history traits of three sympatric gull species: <i>Larus dominicanus</i>, <i>Chroicocephalus maculipennis</i> and <i>Leucophaeus modestus</i>, along the Chilean coast. Mitochondrial (COI) and nuclear (28S) genetic markers were employed to assess patterns of genetic diversity, population structure, and connectivity. To evaluate the ecological drivers of parasite gene flow, host traits such as diet composition, foraging habitat, and migratory behaviour were analyzed alongside parasite genetic data. Molecular, phylogenetic and species delimitation analyses revealed a high degree of genetic connectivity among <i>P. altmani</i> populations, characterised by widespread haplotype sharing across host-associated groups and low FST values, indicating substantial gene flow. Nevertheless, some host-specific haplotypes were identified, which may reflect early stages of host-associated genetic differentiation. A Random Forest model revealed that host migratory behaviour is a strong predictor of the observed genetic homogeneity in parasite populations. The results suggest that the high mobility of gull hosts, combined with overlapping habitat use and shared trophic resources, facilitates parasite transmission and limits genetic structuring among <i>P. altmani</i> populations. The absence of significant genetic divergence across host species and geographic regions underscores the influence of host ecology in shaping parasite population genetics. These findings highlight the value of integrating host life-history traits to better understand genetic connectivity and evolutionary dynamics in generalist marine parasites, offering insight into how ecological interactions at the host level can drive patterns of genetic structure in parasitic systems.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 4","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Patchy, Incomplete Burn Mosaic Moderates the Effects of Prescribed Fire on a Threatened Marsupial 斑块状、不完整的烧伤马赛克减缓了规定火灾对濒危有袋动物的影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-03-23 DOI: 10.1111/aec.70205
Rebecca K. Peisley, Andrew F. Bennett, Greg J. Holland
{"title":"A Patchy, Incomplete Burn Mosaic Moderates the Effects of Prescribed Fire on a Threatened Marsupial","authors":"Rebecca K. Peisley,&nbsp;Andrew F. Bennett,&nbsp;Greg J. Holland","doi":"10.1111/aec.70205","DOIUrl":"https://doi.org/10.1111/aec.70205","url":null,"abstract":"<p>Changes to fire regimes, including application of prescribed burns, represent a threatening process for species worldwide. A challenge is to determine how the spatial pattern of prescribed burns can be manipulated to minimise impacts on species of concern. We used an experimental approach to assess short-term responses of a threatened marsupial, the brush-tailed phascogale <i>Phascogale tapoatafa</i>, to landscape-scale prescribed burns. We used remote cameras to survey this species in 14 forested landscapes subject to burns that varied in % burn cover. Analysis was undertaken using occupancy modelling at both landscape and plot level (5 plots per landscape). The brush-tailed phascogale was widespread but scarce, recorded in 13/14 landscapes and 25/70 plots. While occupancy was not influenced by fire or habitat covariates, detectability decreased with time since camera deployment, and with increasing burn cover. Thus, although persisting, its activity and presumed population density declined as more of the landscape was burned. A negative relationship between burn cover and burn patchiness in these landscapes suggests a patchy mosaic, rather than complete burn, will moderate detrimental effects. A patchy mosaic can contribute to reducing fuel loads while limiting loss of critical structural features on which many species depend, but which take decades to replace.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 3","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Patchy, Incomplete Burn Mosaic Moderates the Effects of Prescribed Fire on a Threatened Marsupial 斑块状、不完整的烧伤马赛克减缓了规定火灾对濒危有袋动物的影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-03-23 DOI: 10.1111/aec.70205
Rebecca K. Peisley, Andrew F. Bennett, Greg J. Holland
{"title":"A Patchy, Incomplete Burn Mosaic Moderates the Effects of Prescribed Fire on a Threatened Marsupial","authors":"Rebecca K. Peisley,&nbsp;Andrew F. Bennett,&nbsp;Greg J. Holland","doi":"10.1111/aec.70205","DOIUrl":"https://doi.org/10.1111/aec.70205","url":null,"abstract":"<p>Changes to fire regimes, including application of prescribed burns, represent a threatening process for species worldwide. A challenge is to determine how the spatial pattern of prescribed burns can be manipulated to minimise impacts on species of concern. We used an experimental approach to assess short-term responses of a threatened marsupial, the brush-tailed phascogale <i>Phascogale tapoatafa</i>, to landscape-scale prescribed burns. We used remote cameras to survey this species in 14 forested landscapes subject to burns that varied in % burn cover. Analysis was undertaken using occupancy modelling at both landscape and plot level (5 plots per landscape). The brush-tailed phascogale was widespread but scarce, recorded in 13/14 landscapes and 25/70 plots. While occupancy was not influenced by fire or habitat covariates, detectability decreased with time since camera deployment, and with increasing burn cover. Thus, although persisting, its activity and presumed population density declined as more of the landscape was burned. A negative relationship between burn cover and burn patchiness in these landscapes suggests a patchy mosaic, rather than complete burn, will moderate detrimental effects. A patchy mosaic can contribute to reducing fuel loads while limiting loss of critical structural features on which many species depend, but which take decades to replace.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 3","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Home Range and Movement of the Ghost Bat (Macroderma gigas) in the Katherine Region, Northern Territory 幽灵蝙蝠(巨蝠)在北领地凯瑟琳地区的活动范围和活动
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-03-22 DOI: 10.1111/aec.70193
Laura Ruykys, Nicola Hanrahan, Ian Leiper, Leroy Gonsalves
{"title":"Home Range and Movement of the Ghost Bat (Macroderma gigas) in the Katherine Region, Northern Territory","authors":"Laura Ruykys,&nbsp;Nicola Hanrahan,&nbsp;Ian Leiper,&nbsp;Leroy Gonsalves","doi":"10.1111/aec.70193","DOIUrl":"https://doi.org/10.1111/aec.70193","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding the impact of human activities on wildlife is challenging if we do not comprehend how species move through the landscape. This study presents the home range and movement parameters of a threatened species, the ghost bat (<i>Macroderma gigas</i>), in an anthropogenically altered landscape. Data on the performance of the Global Positioning System (GPS) tags that were attached to bats are also presented. In 2022, ghost bats were captured in two conservation reserves near the town of Katherine, Northern Territory, Australia, over two reproductive seasons: mating and maternity. Forty-nine ghost bats were captured; of those, 44 were tagged using 32 GPS/VHF tags and a dataset of 521 fixes was obtained. Autocorrelated kernel density estimation (AKDE) was used to establish individual short-term home (95% AKDE) and core (50% AKDE) ranges. In addition, population ranges were derived using data pooled by sex and season at each reserve in a traditional kernel density estimator. Overlap in home ranges, as well as movement parameters, were also determined. The size of short-term home and core home ranges varied by sex and reproductive season. On average, individuals travelled 14.7 km (±SE 808 m) per night, with females (17.0 km ± 805 m) travelling further than males (12.2 km ± 642 m). The distance from an individual's trapping site to the geographic centre of its foraging area averaged 6.3 km (±695 m), with this being greater for females than males. This is the first study using GPS tracking tags on ghost bats in the Northern Territory and only the third published for the species. Our insights on the performance of GPS tags are relevant to researchers of other cave-dwelling species, while our results on home range and movement parameters have implications for conservation of the ghost bat.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 3","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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