Austral Ecology最新文献

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I'm Not Falling for That: Low Boldness and Trappability of Black Rats Impact Small Mammal Survey in Urban Reserves 我不会上当:黑鼠的低胆度和可捕获性影响城市保护区小型哺乳动物调查
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-10-15 DOI: 10.1111/aec.70298
Margarita Gil-Fernández, Johannes J. Le Roux, Christian A. Delfín-Alfonso, Alexandra J. R. Carthey
{"title":"I'm Not Falling for That: Low Boldness and Trappability of Black Rats Impact Small Mammal Survey in Urban Reserves","authors":"Margarita Gil-Fernández,&nbsp;Johannes J. Le Roux,&nbsp;Christian A. Delfín-Alfonso,&nbsp;Alexandra J. R. Carthey","doi":"10.1111/aec.70298","DOIUrl":"https://doi.org/10.1111/aec.70298","url":null,"abstract":"<p>Small mammal diversity is crucial for maintaining the functioning of urban ecosystems. However, small mammal diversity estimates obtained by live-trapping are strongly influenced by animal behaviour. We live-trapped small mammals in five urban reserves, each paired with a natural forest counterpart within Ku-ring-gai Chase National Park, New South Wales, Australia. We used Elliot traps paired with camera traps to observe the activity, boldness, and trappability of small mammals. We found that the activity of small mammals did not differ between the urban reserve and forest sites. However, we found that the most active species in urban reserves was the invasive black rat (<i>Rattus rattus</i>; Muridae), whereas the native bushrat (<i>R. fuscipes;</i> Muridae) was the most active species in forest sites, which greatly influenced our results. We found that the small mammals in the urban reserves were less bold and had lower trappability than their forest counterparts. This could be explained by the bait type, and/or traits of the small mammal species (mostly <i>R. rattus</i>) that were dominant in the urban reserves. Our study also highlights the importance of using camera-trapping in conjunction with live-trapping when assessing small mammal behaviour towards trapping devices to increase the accuracy of diversity estimates obtained by live-trapping.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70298","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149206070","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
Using eDNA to Investigate Soil Fungal Trajectory and Mammal-Fungi Interactions at an Arid Australian Restoration Site 利用eDNA研究澳大利亚干旱恢复地土壤真菌轨迹和哺乳动物与真菌的相互作用
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-10-14 DOI: 10.1111/aec.70299
Charlotte Hogan, Katherine Moseby, John Read, Eve Slavich, Jamie R. Wood
{"title":"Using eDNA to Investigate Soil Fungal Trajectory and Mammal-Fungi Interactions at an Arid Australian Restoration Site","authors":"Charlotte Hogan,&nbsp;Katherine Moseby,&nbsp;John Read,&nbsp;Eve Slavich,&nbsp;Jamie R. Wood","doi":"10.1111/aec.70299","DOIUrl":"https://doi.org/10.1111/aec.70299","url":null,"abstract":"<p>Soil fungi regulate terrestrial ecosystem function and productivity. Native digging mammals influence soil physiochemistry, thus likely affect soil fungal communities; yet despite their re-establishment in many parts of arid Australia, the influence of digging mammals on soil fungi in reintroduction areas remains largely unknown. We used high-throughput DNA sequencing to characterise the soil fungal community at an arid mammal restoration site (Wild Deserts) and an adjacent area where digging mammals are extirpated, as well as to assess the fungal content of scat from a reintroduced digging mammal, the greater bilby (<i>Macrotis lagotis</i>). We assessed the richness, composition, spatial evenness and abundance of fungal functional guilds in soil samples taken inside and outside the reserve. Additionally, we assessed the composition of fungi and fungal functional guilds in bilby scat samples collected at several timepoints (pre- and post-reintroduction). Approximately 3 years after initial reintroductions, the soil fungal community did not differ in any of the assessed measures between digging mammal-present and –absent areas. In bilby scats, there were significant differences in fungal guilds detected between the sampling periods. Litter-saprotrophic fungus <i>Chlorophyllum</i> was more abundant in bilby scats collected three-years post release at Wild Deserts, compared to those collected pre-release and relatively high abundance of <i>Chlorophyllum</i> in several scats may point to opportunistic consumption of the fungus by bilbies. While we did not observe differences in the soil fungal community inside and outside the restoration area within the study period, the strong overlap between fungal taxa detected in soil samples and post-release scats is consistent with bilbies interacting with fungi in the environment at Wild Deserts. Our work highlights a need to improve knowledge of Australian arid-zone fungi, and for long-term monitoring regimes to establish benchmarks for fungal communities and elucidate the mechanisms and timescales by which digging mammals affect soil fungal restoration.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70299","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205758","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
Feral Buffalo Effects on Critical Subsurface Refugia for Chelodina rugosa in Northern Australia 野生水牛对澳大利亚北部切罗迪纳地下关键避难所的影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-10-14 DOI: 10.1111/aec.70300
Helen Truscott, Carla C. Eisemberg, Erica A. Garcia
{"title":"Feral Buffalo Effects on Critical Subsurface Refugia for Chelodina rugosa in Northern Australia","authors":"Helen Truscott,&nbsp;Carla C. Eisemberg,&nbsp;Erica A. Garcia","doi":"10.1111/aec.70300","DOIUrl":"https://doi.org/10.1111/aec.70300","url":null,"abstract":"<p>Freshwater turtles worldwide face escalating threats resulting from habitat alteration, and the absence of detailed assessments for many taxa underscores the need for greater attention. In northern Australia, feral ungulates are a major driver of wetland degradation, with emerging evidence that buffalo activity threatens freshwater turtle populations. Modelling has identified the normally protective states of aestivation and embryo development in <i>Chelodina rugosa</i> as potential points of vulnerability amid escalating buffalo numbers. This study examined how buffalo alter subsurface conditions relevant to aestivation and nesting by quantifying rooted ground-layer vegetation, thermal regimes, gravimetric soil moisture and trampling in areas exposed to and excluded from buffalo over three habitat types in the Arafura Swamp Indigenous Protected Area. Buffalo presence markedly reduced subsurface habitat quality, increasing temperature and thermal variability, reducing soil moisture and rooted ground-cover vegetation and causing direct trampling of nests. These changes are likely to increase energetic costs during aestivation and reduce embryo survivorship. Such impacts on subsurface microhabitats are expected to intensify under predicted climatic changes and rainfall variability, further constraining the species' capacity to maintain successful aestivation over extended periods and maintain reproductive rates. Our findings highlight the need for targeted buffalo management to protect critical subsurface refugia for <i>C. rugosa</i> in northern Australian wetlands. Additionally, many other fauna rely on subsurface refugia during the dry season, including amphibians, other reptiles and invertebrates such as crustaceans and insects; these buffalo-induced impacts are likely to have much broader ecosystem-level consequences.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70300","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205759","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
Colonial Cartography and World Heritage Valuing in Takayna Country: A Reflection on the Use of the Simple Additive Weighted Method Takayna国殖民地制图与世界遗产价值评估——对简单加性加权法应用的思考
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-10-13 DOI: 10.1111/aec.70296
Jennifer Diana Evans (Dharug), Kerry Lynn Bridle, James Barrie Kirkpatrick
{"title":"Colonial Cartography and World Heritage Valuing in Takayna Country: A Reflection on the Use of the Simple Additive Weighted Method","authors":"Jennifer Diana Evans (Dharug),&nbsp;Kerry Lynn Bridle,&nbsp;James Barrie Kirkpatrick","doi":"10.1111/aec.70296","DOIUrl":"https://doi.org/10.1111/aec.70296","url":null,"abstract":"<p>In many regions there are disputes about future land use that make knowledge of spatial variation in conservation value an important input to negotiation. Current approaches to measuring spatial conservation values for the purposes of recognition and protection remain largely trapped in colonising cartographic methodologies that marginalise Indigenous knowledges and valuing of Indigenous lands (country). One such current approach is simple additive weighted methods which are unable to recognise relational values. We reflect on the use of these methods in the case study of Takayna country, in Trouwerner and Lutruwita/Tasmania, Australia. The hegemonic IUCN framework for protected areas is yet to be decolonised, allowing the settler state to value Takayna country though white possession of conservation without its Aboriginal values. In recognition of these fundamental deficiencies, we attempt to mitigate the limitations of the simple additive weighted method by including additional values of importance. We weighted the importance of individual heritage attributes by assessing the global concentration of representation of individual values in the region and relating the degree of concentration to recognised criteria for international, national, State and regional significance. Our analysis indicated that much of the region was of global significance on several natural criteria, with the coast and the inland rainforest areas standing out for their high conservation value. Despite our conclusion that Takayna country has internationally significant values that may meet World Heritage criteria iii, v, vi, vii and x, we demonstrate that colonial cartography is unjust and unable to measure, interpret and resolve disputed conservation values of sovereign bodies of country. Alternative approaches that address the past neglect of cultural values and enable strong Indigenous governance, formal recognition of First Peoples, and land return, are crucial for integrating First Peoples' knowledges, caring for country and relationships with country into conservation planning and management, ultimately improving conservation outcomes.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70296","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205575","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
Climatic Seasonality Shapes Future Suitability and Extra-Limital Transferability in Patagonian Berry Shrubs 气候季节性决定了巴塔哥尼亚浆果灌木的未来适宜性和极限迁移性
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-10-12 DOI: 10.1111/aec.70297
Nicolás I. Villalobos, Cristian Torres-Díaz, Gonzalo A. Collado, Alicia G. Marticorena, Jorge P. Campos
{"title":"Climatic Seasonality Shapes Future Suitability and Extra-Limital Transferability in Patagonian Berry Shrubs","authors":"Nicolás I. Villalobos,&nbsp;Cristian Torres-Díaz,&nbsp;Gonzalo A. Collado,&nbsp;Alicia G. Marticorena,&nbsp;Jorge P. Campos","doi":"10.1111/aec.70297","DOIUrl":"https://doi.org/10.1111/aec.70297","url":null,"abstract":"<div>\u0000 \u0000 <p>Patagonian berry shrubs are ecologically and culturally important native plants of southern South America, yet their climatic differentiation, future redistribution and extra-limital transferability remain poorly understood. We analysed 7079 occurrence records of <i>Aristotelia chilensis</i> (Elaeocarpaceae), <i>Ugni molinae</i> (Myrtaceae), <i>Berberis microphylla</i> and <i>Berberis darwinii</i> (Berberidaceae) using species-specific regularised presence-background models calibrated exclusively with native occurrences. Models incorporated spatial-block validation, bias-weighted background sampling and species-specific sets of collinearity-filtered climatic and topographic predictors. Future climatic suitability was projected to 2061–2080 under two global climate models and low- and high-forcing pathways, while geographic transferability to Australia and New Zealand was assessed using environmental similarity and environmental-distance diagnostics. Spatial validation showed weak-to-moderate, species-dependent discrimination. Precipitation seasonality made the largest contribution to model discrimination in three species, whereas temperature seasonality dominated <i>U. molinae</i>. Future projections indicated species-specific reorganisation rather than uniform directional shifts, with the broadest changes in <i>B. microphylla</i>. Current environmental novelty encompassed 66.0%–82.5% of Australasia. In contrast, <i>B. darwinii</i> showed strong extra-limital climatic correspondence: 99.2% of retained introduced records exceeded the native suitability threshold and 96.6% occurred under environmentally analogous conditions. These results demonstrate that temporal redistribution and geographic transferability must be interpreted jointly with model performance and environmental novelty when deriving conservation and biosecurity implications.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205519","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 Rough Relationship: New Records of Reciprocal Predation Between Pitvipers and Opossums 一种粗略的关系:Pitvipers和负鼠之间相互捕食的新记录
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-10-08 DOI: 10.1111/aec.70295
Laura S. Degaspari, Eletra de Souza, Erika Hingst-Zaher, Silvia R. Travaglia-Cardoso
{"title":"A Rough Relationship: New Records of Reciprocal Predation Between Pitvipers and Opossums","authors":"Laura S. Degaspari,&nbsp;Eletra de Souza,&nbsp;Erika Hingst-Zaher,&nbsp;Silvia R. Travaglia-Cardoso","doi":"10.1111/aec.70295","DOIUrl":"https://doi.org/10.1111/aec.70295","url":null,"abstract":"<div>\u0000 \u0000 <p>Feeding interactions between <i>Bothrops</i> pitvipers and <i>Didelphis</i> opossums are often framed as a coevolutionary interaction centred on venom resistance, in which the opossums seem to be resistant to venom toxins and can therefore consume venomous snakes. We report two instances of adult female <i>Bothrops jararacussu</i> feeding on <i>Didelphis aurita</i> in the Atlantic Forest of southeastern Brazil. We propose that the outcome of these interactions depends not only on the biochemical balance between venom composition and prey resistance, but also on species size, venom volume and the prey's ability to detect a cryptic ambush predator. Field observations show that <i>Didelphis</i> rarely detects <i>Bothrops</i> in natural encounters, suggesting that sensory limitations may play a central role in mediating predation outcomes. Together, our findings challenge the prevailing arms race paradigm and highlight the importance of ecological context in shaping predator-prey dynamics.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146051","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
Lizards in Dunes and Swales: Habitat Structure and Assemblage Patterns 沙丘和峡谷中的蜥蜴:栖息地结构和组合模式
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-09-27 DOI: 10.1111/aec.70293
Christina Paizis, Jules E. Farquhar, Katherine Moseby, Bob B. M. Wong, Alexandra J. R. Carthey, David G. Chapple
{"title":"Lizards in Dunes and Swales: Habitat Structure and Assemblage Patterns","authors":"Christina Paizis,&nbsp;Jules E. Farquhar,&nbsp;Katherine Moseby,&nbsp;Bob B. M. Wong,&nbsp;Alexandra J. R. Carthey,&nbsp;David G. Chapple","doi":"10.1111/aec.70293","DOIUrl":"https://doi.org/10.1111/aec.70293","url":null,"abstract":"<p>Habitat structure mediates thermoregulation, foraging opportunities, and access to refugia, shaping how animals use space and encounter risk. Dune–swale mosaics provide sharp structural contrasts over short distances, offering a natural test of structure–assemblage links and spacing relative to shelter. We compared lizard assemblages and the positions of active lizards relative to vegetative cover across interdunal swales and adjacent sand dunes in central South Australia. At replicated sites in Arid Recovery Reserve and Andamooka Pastoral Station, we quantified vegetation and ground-layer structure, sampled assemblages with pitfall traps and active searches, and measured each active lizard's distance to the nearest vegetative refuge. We tested whether the expected structural contrast between dunes and swales was evident at our study sites, whether lizard community composition and assemblage metrics differed between landforms, and whether active lizards in structurally simpler habitat occurred closer to vegetative cover than those in more complex habitat. Dunes were more structurally complex than swales, lizard communities differed significantly between landforms, and abundance was higher on dunes, whereas richness and diversity were broadly comparable. However, active lizards in both landforms occurred at similar distances to vegetative cover. These findings identify habitat structure as a key driver of assemblage differences, while showing that we did not detect a significant habitat-level difference in active lizards' distance to vegetative cover under the present sampling design. We interpret implications for predation risk broadly in a multi-predator context and recommend coupling behavioural metrics with predator-activity indices and repeating sampling across wet and dry years.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70293","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149068365","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
PVA Highlights Different Management Actions Required to Prevent Extinction in Fenced and Unfenced Populations of Reintroduced Western Quolls PVA强调了在重新引入的围栏和非围栏种群中防止灭绝所需的不同管理行动
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-09-21 DOI: 10.1111/aec.70289
Rebecca Schaefer, Katherine Tuft, Isabelle Onley, Kym Ottewell, Genevieve L. T. Hayes, Rob Brandle, Catherine Lynch, Katherine E. Moseby
{"title":"PVA Highlights Different Management Actions Required to Prevent Extinction in Fenced and Unfenced Populations of Reintroduced Western Quolls","authors":"Rebecca Schaefer,&nbsp;Katherine Tuft,&nbsp;Isabelle Onley,&nbsp;Kym Ottewell,&nbsp;Genevieve L. T. Hayes,&nbsp;Rob Brandle,&nbsp;Catherine Lynch,&nbsp;Katherine E. Moseby","doi":"10.1111/aec.70289","DOIUrl":"https://doi.org/10.1111/aec.70289","url":null,"abstract":"<p>Population Viability Analysis (PVA) is a broad tool which can be used to estimate the likelihood of population persistence in translocated populations. We used PVA to evaluate the viability of two reintroduced populations of western quolls, a threatened marsupial carnivore, using population-specific parameters. Quolls were reintroduced to two sites in South Australia: Arid Recovery (AR), an arid cat- and fox-exclusion site comprised of a 12 300-ha fenced safe haven, and Ikara Flinders Ranges National Park (IFRNP), a 93 800-ha semi-arid unfenced conservation reserve where introduced predators were controlled through aerial baiting. We predicted that factors influencing population viability would vary significantly between the two sites due to the differences in release size area and predation risk. Site-specific genetic, mortality, and population size data of quolls were gathered and incorporated into the PVA. At the unfenced site, scenarios with higher carrying capacity and the lower rates of mortality recorded after aerial cat and fox baiting significantly reduced the probability of extinction (PE). Increases in juvenile mortality rate increased PE to a greater extent than the adult mortality rate. Increasing the size of the area under intensive cat and fox control was the management action most likely to result in a viable population through increasing carrying capacity. In comparison, at the fenced AR site, extinction risk was related to the small population size, and, despite higher survival, supplementation of extra individuals was deemed necessary to avoid extinction and inbreeding. Low mortality rates allowed for less frequent supplementation. Population harvesting from IFRNP of 21 individuals for up to 3 years did not significantly increase the risk to this population of inbreeding depression if carrying capacity was increased. These results demonstrate the need for different management strategies for different populations of the same species to avoid extinction within 100 years.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70289","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149047865","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
The Interplay Between Fire and Microhabitat Cover Drives Seed Removal in Gallery Forests in the Brazilian Cerrado 火与微生境覆盖之间的相互作用驱动巴西塞拉多廊道森林的种子清除
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-09-20 DOI: 10.1111/aec.70290
Liliane Gomes Freitas Pessini, Renato D' Elia Feliciano, Alexander V. Christianini
{"title":"The Interplay Between Fire and Microhabitat Cover Drives Seed Removal in Gallery Forests in the Brazilian Cerrado","authors":"Liliane Gomes Freitas Pessini,&nbsp;Renato D' Elia Feliciano,&nbsp;Alexander V. Christianini","doi":"10.1111/aec.70290","DOIUrl":"https://doi.org/10.1111/aec.70290","url":null,"abstract":"<p>Fire may have distinct effects on the fauna inhabiting savannas and forests, because the former have evolved under occasional occurrence of fire, while natural caused fire tends to be rare in tropical forests. Therefore, fires may be particularly influential to plant–animal interactions in forests. We investigated the effects of wildfires on microhabitat cover and post-dispersal seed removal in gallery forests immersed in Brazilian Cerrado (savanna) landscapes. With the aid of selective exclosures, we measured the relative contribution of ants and vertebrates to the removal of seeds of three plant species varying in consumption constraints (toxicity, size). Fire increased removal of small seeds by ants, while decreasing seed removal by vertebrates, regardless of seed palatability. Vertebrates removed more seeds from covered microhabitats, while the opposite happened for ants. Larger seeds were less removed than smaller seeds, irrespective of fire. Changes in seed removal after fire seems to be mediated by changes in microhabitat cover. Plants whose seeds are often preyed upon by vertebrates likely benefit in the short-term from fire to escape predation, while the opposite would be true for those removed by granivorous ants (e.g., seeds &lt; 1 g). Therefore, as long as seeds are available, fire in gallery forests may create pulses of opportunities for certain plant species to recruit, while constraining others.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"51 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70290","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149047890","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
The Effects of Agricultural Landscape on the Functional Diversity of Bird Species in the Neotropical Dryland 新热带旱地农业景观对鸟类功能多样性的影响
IF 1.6 4区 环境科学与生态学
Austral Ecology Pub Date : 2026-09-17 DOI: 10.1111/aec.70292
Mônica da Costa Lima, Thiago Nascimento Zanetti, Helder Farias Pereira de Araujo
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