Austral Ecology最新文献

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Seasonal and Spatial Variation in the Growth, Biomass Production, Mortality and Potential Blue Carbon Production of Golden Kelp (Ecklonia radiata) Off Eastern Australia 东澳大利亚海域金海带生长、生物量生产、死亡率和潜在蓝碳产量的季节和空间变化
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-12 DOI: 10.1111/aec.70120
T. R. Davis, M. J. Nimbs, M. A. Coleman
{"title":"Seasonal and Spatial Variation in the Growth, Biomass Production, Mortality and Potential Blue Carbon Production of Golden Kelp (Ecklonia radiata) Off Eastern Australia","authors":"T. R. Davis,&nbsp;M. J. Nimbs,&nbsp;M. A. Coleman","doi":"10.1111/aec.70120","DOIUrl":"https://doi.org/10.1111/aec.70120","url":null,"abstract":"<p>Kelp removes carbon from the oceans as it grows, with the potential for long-term removal of this ‘blue carbon’ through the sequestration of kelp detritus in deep offshore sediments and waters. However, understanding the magnitude of kelp's blue carbon potential requires more detailed information about kelp growth, biomass production, and detrital production through erosion and mortality. Here, hole punch growth measurements were conducted on tagged kelp plants to quantify these factors at multiple sites and in each season across 7° of latitude in New South Wales (NSW), Australia. Kelp biomass production varied among sites and among seasons, being higher over winter and spring than in summer and autumn and higher at Port Stephens than at Coffs Harbour, Batemans Bay and Eden. However, detrital production per plant, from kelp erosion and mortality, did not vary significantly among sites or seasons, although detrital production per unit area varied among sites with differences in kelp density. Overall, kelp growth and biomass and detrital production in NSW were comparable to those previously recorded in South Australia and Western Australia, although erosion was generally lower and mortality rates were generally higher than in Western Australia. This has important implications for management; the relatively uniform growth, biomass and detrital production across Australia indicates that, to maximise the blue carbon potential of kelp forests across Australia's Great Southern Reef, management should focus on preserving large, high-density kelp forests with high levels of detrital transport into deep offshore waters.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038191","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
Wild Divergence: Molina's Hog-Nosed Skunk (Conepatus chinga) and South American Coati's (Nasua nasua) Responses to Landscape Changes in the Highly Neglected Uruguayan Savannah 野生分化:莫利纳的猪鼻臭鼬(Conepatus chinga)和南美浣熊(Nasua Nasua)对高度被忽视的乌拉圭大草原景观变化的反应
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-12 DOI: 10.1111/aec.70123
Jordani Dutra, Maria João Ramos Pereira, Flávia P. Tirelli
{"title":"Wild Divergence: Molina's Hog-Nosed Skunk (Conepatus chinga) and South American Coati's (Nasua nasua) Responses to Landscape Changes in the Highly Neglected Uruguayan Savannah","authors":"Jordani Dutra,&nbsp;Maria João Ramos Pereira,&nbsp;Flávia P. Tirelli","doi":"10.1111/aec.70123","DOIUrl":"https://doi.org/10.1111/aec.70123","url":null,"abstract":"<p>Understanding species responses to environmental changes is vital for effective conservation, especially in vulnerable regions like the Uruguayan Savannah in South America. This study focused on two often overlooked species: the South American coati (<i>Nasua nasua</i>) and Molina's hog-nosed skunk (<i>Conepatus chinga</i>). We deployed 90 camera traps across 15 sites in both Brazilian and Uruguayan sectors of the ecoregion to investigate the effects of land cover types (forests, grasslands, farmland and silviculture) and human density on species occupancy. Using occupancy models, we assessed activity patterns and landscape transition histories, generating innovative occupancy maps to inform conservation policies. The South American coati occupancy is positively correlated with forest areas but negatively with grasslands and crop farming (<i>p</i> &lt; 0.05). In contrast, Molina's hog-nosed skunk exhibited a positive response to grasslands and crop farming, but a negative response to forests (<i>p</i> &lt; 0.05). Estimated occupancy for coatis was 0.141 (0.041–0.420), while for skunks, it was 0.377 (0.200–0.610). Coatis were found only in seemingly pristine areas, whereas skunks adapted to previously human-used areas. Our findings highlight the urgent need for targeted conservation efforts for coatis while recognising the skunk's resilience to landscape alterations. This research provides critical insights for guiding conservation strategies in threatened ecoregions.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70123","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038192","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
Thermotolerance in Miniature: Heat Resilience of Moss Propagules From Brazilian Ferruginous Rocky Outcrops 微型耐热性:巴西含铁岩石露头苔藓繁殖体的耐热性
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-09 DOI: 10.1111/aec.70121
Guilherme Freitas Oliveira, Mateus Fernandes Oliveira, Cintia Aparecida Teixeira Araújo, Adaíses Simone Maciel-Silva
{"title":"Thermotolerance in Miniature: Heat Resilience of Moss Propagules From Brazilian Ferruginous Rocky Outcrops","authors":"Guilherme Freitas Oliveira,&nbsp;Mateus Fernandes Oliveira,&nbsp;Cintia Aparecida Teixeira Araújo,&nbsp;Adaíses Simone Maciel-Silva","doi":"10.1111/aec.70121","DOIUrl":"https://doi.org/10.1111/aec.70121","url":null,"abstract":"<p>Harsh environments present substantial challenges to most organisms, making survival and thriving difficult. Such conditions often include extreme temperatures, intense radiation, strong winds, and very low or high humidity levels, resulting in a limited availability of resources like water and nutrients. Deserts, with their extreme heat and scarce water, and Brazilian ferruginous rocky outcrops (<i>Cangas</i>), known for their extreme temperatures, nutrient-poor soils, wildfire events, and limited water, are prime examples. Despite these harsh conditions, <i>Cangas</i> host specialised flora, including rare angiosperm species, and diverse mosses and liverworts adapted to water scarcity and high solar radiation. However, their adaptations to heat stress are not well understood. Our study is the first to investigate the thermotolerance of bryophyte asexual propagules in two common moss species found in <i>Cangas</i>, in the context of forest fires, focusing on <i>Bryum atenense</i> R.S. Williams (Bryaceae) and <i>Campylopus savannarum</i> (Müll. Hal.) Mitt. (Dicranaceae). We subjected <i>B. atenense</i> tubers and <i>C. savannarum</i> detached leaves to heat treatments at 120°C, 140°C, and 160°C for 5 and 30 min, alongside a control group. Results showed that <i>C. savannarum</i> leaves lack thermotolerance, whereas <i>B. atenense</i> tubers exhibited notable resilience, as evidenced by protonemata production up to 54 days after treatment, with 60.4% regeneration at 120°C for 30 min and 58.3% at 160°C for 5 min. This study represents the first record of thermotolerance in bryophyte asexual propagules in <i>Cangas</i>, documenting the highest level of thermotolerance known for moss propagules. It offers valuable insights into moss resilience in harsh environments and their potential responses to wildfires and global warming.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012575","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
Beyond Equations: Large Language Models as a New Frontier for Resilient Ecosystem Modelling 超越方程:大语言模型作为弹性生态系统建模的新前沿
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-09 DOI: 10.1111/aec.70122
Yu Wu
{"title":"Beyond Equations: Large Language Models as a New Frontier for Resilient Ecosystem Modelling","authors":"Yu Wu","doi":"10.1111/aec.70122","DOIUrl":"https://doi.org/10.1111/aec.70122","url":null,"abstract":"<div>\u0000 \u0000 <p>Large language models (LLMs) offer a complementary interface to traditional ecological modelling, particularly in addressing the challenges of unstructured data integration, stakeholder communication and early warning signal detection. Rather than replacing mechanistic or statistical approaches, LLMs function as semantic assistants—extracting, organising and translating ecological knowledge across diverse textual sources. This letter reframes the role of LLMs from paradigm disruptors to epistemic extenders, emphasising their utility in pre-model discovery, mid-model augmentation and post-model communication. We contrast LLMs with conventional models along dimensions such as causality, transparency, and data interoperability and argue for a hybrid modelling paradigm that combines mechanistic rigour with language-driven flexibility. Ethical considerations—particularly related to hallucination, traceability, and digital infrastructure equity—are also addressed. We call for a cautious yet proactive integration of LLMs into ecosystem resilience research to improve inclusivity, agility and contextual awareness in ecological decision-making.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012574","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
Home Range and Movement of the Koala (Phascolarctos cinereus) in Fragmented High-Quality Coastal Habitat 碎片化高质量海岸生境中无尾熊(Phascolarctos cinereus)的家园范围和运动
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-08 DOI: 10.1111/aec.70108
Christopher M. McLean, Matthew A. Stanton, Rodney P. Kavanagh
{"title":"Home Range and Movement of the Koala (Phascolarctos cinereus) in Fragmented High-Quality Coastal Habitat","authors":"Christopher M. McLean,&nbsp;Matthew A. Stanton,&nbsp;Rodney P. Kavanagh","doi":"10.1111/aec.70108","DOIUrl":"https://doi.org/10.1111/aec.70108","url":null,"abstract":"<p>The Koala (<i>Phascolarctos cinereus</i>) is an arboreal marsupial that has declined substantially, partially due to conflict with urban expansion. Understanding movement and home range size in urban habitat is therefore important, including road crossing propensity. The aim of this study was to use GPS collars to determine the home range size and road crossing propensity of the Koala in a fragmented, high-quality coastal habitat. GPS collars were fitted to seven Koalas between February 2014 and December 2015, with tracking periods ranging from 16 to 541 days, and positions logged hourly. We found that the home range of Koalas varied, from small to large (fixed kernel 95% range 1.33–68.63, median 2.75 ha), with small daily movement distances (μ 23–71 m). The frequency of road crossings was generally low, ranging from zero to 1.9 per month. These results suggest that high quality Swamp Sclerophyll Forest habitat where these animals were found is of the utmost importance to the local Koala population. Protection of this type of habitat is therefore paramount.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007985","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
Chasing the Rains: Seasonal Dynamics of Herbivorous and Predatory Insects in Savannahs in Kruger National Park, South Africa 追逐雨水:南非克鲁格国家公园大草原草食性和掠食性昆虫的季节动态
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-06 DOI: 10.1111/aec.70115
Fernando P. Gaona, Sylvain Delabye, Pavel Potocký, Valeriy Govorov, Jan Čuda, Llewellyn C. Foxcroft, Rafał Garlacz, Martin Hejda, Sandra MacFadyen, Tomasz Pyrcz, Klára Pyšková, Ondřej Sedláček, David Storch, Petr Pyšek, Robert Tropek
{"title":"Chasing the Rains: Seasonal Dynamics of Herbivorous and Predatory Insects in Savannahs in Kruger National Park, South Africa","authors":"Fernando P. Gaona,&nbsp;Sylvain Delabye,&nbsp;Pavel Potocký,&nbsp;Valeriy Govorov,&nbsp;Jan Čuda,&nbsp;Llewellyn C. Foxcroft,&nbsp;Rafał Garlacz,&nbsp;Martin Hejda,&nbsp;Sandra MacFadyen,&nbsp;Tomasz Pyrcz,&nbsp;Klára Pyšková,&nbsp;Ondřej Sedláček,&nbsp;David Storch,&nbsp;Petr Pyšek,&nbsp;Robert Tropek","doi":"10.1111/aec.70115","DOIUrl":"https://doi.org/10.1111/aec.70115","url":null,"abstract":"<div>\u0000 \u0000 <p>Tropical savannahs experience pronounced seasonality, especially in rainfall and temperature, shaping plant productivity and resource availability. Yet, temporal patterns in insect diversity remain poorly understood. We investigated seasonal variation in species richness and community composition of moths (herbivores) and mantises (predators) across four main landsystems in Kruger National Park, South Africa. Using light traps during early and late wet seasons, we captured 65 593 moths (817 morphospecies) and 3511 mantises (38 morphospecies). Species richness of both groups significantly increased from the early to the late wet season, particularly in the wetter southern landsystems, likely driven by rainfall-enhanced resource availability and habitat complexity. Community composition varied seasonally and among landsystems, with moths primarily influenced by seasonal changes, whereas mantises responded more strongly to landsystem differences. Our results indicate that rainfall-driven seasonal resource variability is a key determinant of insect phenological patterns in tropical savannahs. Predicted shifts in rainfall patterns due to climate change may alter insect emergence timing and trophic interactions, highlighting the importance of incorporating seasonal dynamics into biodiversity conservation and management strategies.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998965","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
Insights on the Potential of Natural Regeneration to Restore Cerrado Open Ecosystems 自然再生恢复塞拉多开放生态系统潜力的见解
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-04 DOI: 10.1111/aec.70113
Bethina Stein, Natashi Pilon, Demetrius Lira-Martins, Lucy Rowland, Rafael S. Oliveira
{"title":"Insights on the Potential of Natural Regeneration to Restore Cerrado Open Ecosystems","authors":"Bethina Stein,&nbsp;Natashi Pilon,&nbsp;Demetrius Lira-Martins,&nbsp;Lucy Rowland,&nbsp;Rafael S. Oliveira","doi":"10.1111/aec.70113","DOIUrl":"https://doi.org/10.1111/aec.70113","url":null,"abstract":"<p>Natural regeneration in tropical open ecosystems has proved to be an effective mechanism for recovering degraded areas when considering the woody vegetation layer. However, little is known about the potential of the ground layer to recover after anthropogenic disturbances. Here, we aim to deepen the current understanding of community assembly in tropical open ecosystems by studying the natural regeneration potential in the Cerrado, with a focus on the ground layer. By inducing disturbance in conserved and degraded <i>Cerrado</i> grasslands, we tested the hypothesis that typical (native) Cerrado species colonise the disturbed patches primarily through vegetative propagation rather than by seed germination. Therefore, the vegetation would resemble the surrounding area instead of forming a novel species assembly. We induced disturbance by creating small gaps and monitored species colonisation strategies under both conditions. Non-native species dominated the degraded site, whereas the conserved site—an old-growth grassland—was dominated by native species. After 18 months (two reproductive seasons after the gaps opening), few native species colonised the degraded area, despite the removal of the non-native species in the gaps and the proximity to the conserved vegetation. Only exotic and ruderal species colonised the gaps in the degraded area, primarily through seed germination. Conversely, in the conserved area, the most common regeneration strategies were resprouting from deep and lateral underground structures (bud-banks) and stolon propagation. Therefore, we provide evidence that natural regeneration is dominated by vegetative propagation and resprouting in the Cerrado, with limited scope for native plants to colonise, even over short distances. Without a viable belowground bud-bank, restoring the Cerrado open ecosystems requires active techniques.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934893","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
Potential Impacts of Black Rats (Rattus rattus) on Seeds and Seedlings of Woody Species in a Regenerating Island Rainforest Plant Community 黑鼠(Rattus Rattus)对海岛雨林植物群落中木本植物种子和幼苗的潜在影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-03 DOI: 10.1111/aec.70109
Annabel B. Ellis, Dieter F. Hochuli, Peter B. Banks
{"title":"Potential Impacts of Black Rats (Rattus rattus) on Seeds and Seedlings of Woody Species in a Regenerating Island Rainforest Plant Community","authors":"Annabel B. Ellis,&nbsp;Dieter F. Hochuli,&nbsp;Peter B. Banks","doi":"10.1111/aec.70109","DOIUrl":"https://doi.org/10.1111/aec.70109","url":null,"abstract":"<p>Invasive rodents are among the world's most damaging invasive species linked to declines and extinctions of many vertebrate and invertebrate species, especially in island ecosystems. However, despite a mainly herbivorous diet, their impacts on plant communities are less well known, with few studies in Australian ecosystems. We studied the potential impacts of high-density populations of invasive black rats (<i>Rattus rattus</i>) on the restoration of an endangered ecological community of sub-tropical rainforest on two small islands in southeastern Australia. We used two experiments to investigate rat impacts on two woody rainforest species, <i>Hibiscus heterophyllus</i> and <i>Acacia maidenii</i>, that are frequently used for successional planting in restoration. We hypothesised that, as black rats generally obtain a large amount of their diet from plants, they would rapidly damage <i>Hibiscus</i> and <i>Acacia</i> seedlings and consume <i>Hibiscus</i> seeds. We found that using cages to exclude black rats for 11–14 days had significant effects on herbivory of <i>Hibiscus</i> seedlings but not for <i>Acacia</i> seedlings. <i>Hibiscus</i> seedlings with no exclusion cage lost an average of 17% more leaves (1.83 of initial average 10.6 leaves per plant) when compared to caged seedlings. We also found that excluding rats reduced the number of <i>Hibiscus</i> seedlings damaged, although 50% of the damage was suspected to be caused by insects. Although only 4.5% of total <i>Hibiscus</i> seeds were removed during the 3-day experimental period, the night-time removal rate (mostly attributed to black rats) was 10 times more than that of other diurnal foragers. This rate of seed removal by black rats has the potential to contribute to poor restoration in rainforest but was lower than black rat consumption of seeds in other systems. We conclude that, in our system, black rats appear to have minimal potential impacts on these rainforest species, despite high rat densities, confirming the successful use of these species in restoration. However, being novel to the system, the additive effects of rats on seed loss over time warrant further investigation.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929915","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
Landscape-Scale Impacts of Deer on Tree Ferns in South-Eastern Australia 澳大利亚东南部鹿群对蕨类植物的景观影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-09-01 DOI: 10.1111/aec.70114
Ami Bennett, Dan Robertson, Timothy J. Wills, Richard W. R. Retallick, Joe Greet
{"title":"Landscape-Scale Impacts of Deer on Tree Ferns in South-Eastern Australia","authors":"Ami Bennett,&nbsp;Dan Robertson,&nbsp;Timothy J. Wills,&nbsp;Richard W. R. Retallick,&nbsp;Joe Greet","doi":"10.1111/aec.70114","DOIUrl":"https://doi.org/10.1111/aec.70114","url":null,"abstract":"<p>Tree ferns (order Cyatheales) are a key component of wet forests globally, providing critical forest understorey structure and ecosystem functions. Tree ferns may be impacted by ungulates in novel habitats, but the extent and severity of these impacts are often uncertain. We aimed to determine the impact of introduced deer on tree ferns in wet forests of south-eastern Australia. Using both broadscale deer abundance and impact surveys and targeted tree fern assessments, we surveyed browsing impacts on tree ferns at over 200 sites across a range of wet forest types in south-eastern Australia where deer are present. Tree fern species, plant height and estimates of foliage biomass removed by browsing were recorded for over 4500 individual tree ferns including 1871 <i>Cyathea australis</i>, 2622 <i>Dicksonia antarctica</i> and 41 <i>Todea barbara</i>. Browsing impacts on tree ferns were recorded at 96% of surveyed sites, with a third to a half of tree ferns typically impacted by browsing at each site. There were no differences in recorded impact between tree fern species. Browsing of tree ferns was strongly height dependent, regardless of species, and associated with indices of deer density. Tree ferns &lt; 100 cm were often highly impacted (mean &gt; 20% foliage browsed), with impact declining approximately linearly with height to 200 cm, typically low 200 to 300 cm, and absent thereafter. The widespread and in many cases severe browsing on tree ferns recorded can be largely attributable to introduced deer. These impacts potentially threaten tree fern populations and diminish the vegetation structure and ecosystem function of these wet forests. Management interventions to reduce deer populations in the wet forests of south-eastern Australia are critical to protect forest integrity and function.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927518","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
Sea Country Change: Projected Poleward Range Shifts for Bioculturally Important Marine Gastropods Under Climate Change 海洋国家变化:气候变化下具有重要生物文化意义的海洋腹足类动物向极地方向移动的预估
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2025-08-31 DOI: 10.1111/aec.70116
Matt J. Nimbs, Amanda S. Williams, Tom R. Davis, Curtis Champion, Melinda A. Coleman
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