Austral Ecology最新文献

{"title":"Impacts of Traditional and New Land Uses on Dung Beetle Assemblages in the Brazilian Pantanal","authors":"Tais Felix Gonçalves,&nbsp;Kleyton R. Ferreira,&nbsp;Fernando Z. Vaz-de-Mello,&nbsp;Camila Aoki,&nbsp;Neiva M. R. Guedes,&nbsp;Ademir Kleber Morbeck de Oliveira,&nbsp;César M. A. Correa","doi":"10.1111/aec.70081","DOIUrl":"https://doi.org/10.1111/aec.70081","url":null,"abstract":"<div>\u0000 \u0000 <p>The Pantanal is one of the largest Neotropical seasonal freshwater wetlands on Earth, with high biodiversity. Livestock farming has historically been the main economic activity in the Pantanal, in large areas of exotic pastures, and more recently, new areas for soybean croplands were implemented in this biome. However, the impacts of the new areas with soybean crops on biodiversity are still unknown. Here, we used dung beetles, a recognised bioindicator group, to assess the effect of the exotic pastures and soybean croplands on biodiversity in the Brazilian Pantanal. For this, we sampled dung beetles in January 2023 (rainy season) using standardised sampling protocols in the native grasslands, exotic pastures, and soybean croplands in Aquidauana municipality, Mato Grosso do Sul, Brazil. Our results show a consistent shift in dung beetle species composition and a reduction of abundant and dominant species from native grasslands to soybean croplands. These results indicate that the effects caused by soybean croplands are more severe on dung beetle biodiversity than exotic pastures, demonstrating that soybean croplands established in the Pantanal have severe negative consequences for biodiversity. Therefore, management of native grasslands and exotic pastures may be an alternative to avoid the loss of dung beetle biodiversity and to maintain livestock sustainable production in the Brazilian Pantanal. Finally, we highlight the importance of evaluating the effects of traditional and new agricultural systems on biodiversity for the development of more efficient, sustainable management and conservation strategies in the Brazilian Pantanal.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 6","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179310","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}

{"title":"Climate Change Effects on Long-Term Leafing Activity of a Tropical Rainforest Tree Species, Davidsonia pruriens","authors":"Nara O. Vogado,&nbsp;Michael J. Liddell","doi":"10.1111/aec.70077","DOIUrl":"https://doi.org/10.1111/aec.70077","url":null,"abstract":"<p>Leafing activity is a crucial part of the tree life cycle and is tightly linked to photosynthesis, gas exchange and biomass accumulation, among other processes. Despite this, many aspects of leafing phenology, such as climate drivers of community and species-level temporal patterns, are poorly understood in tropical rainforest species. Here, we present 18 years of above-canopy phenological observations of leafing phenology for <i>Davidsonia pruriens</i>, an important endemic species in the Wet Tropics, from January 1997 to December 2014. We assessed changes in leafing patterns through time and how they are being affected by climate drivers. We found that, while the tropical rainforest region is considered to have low seasonality in leaf production, leafing in this species was seasonal with a peak in the wet season. Analysis of climate drivers showed that increased leaf production was correlated with increased daily rainfall and decreased solar radiation. Interannual activity responded similarly to changes in annual rainfall and solar radiation but was also significantly impacted by cyclones and El Niño events. Our results show that <i>Davidsonia pruriens</i> has seasonal leafing patterns which are strongly influenced by climate drivers. Our study is the first to present field-based measurements of long-term leafing phenology in Australia, which clearly demonstrate climate change sensitivity of leafing in an endemic plant, a plant that is a significant bush tucker species to Aboriginal traditional custodians of the rainforest region of Northern Australia.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 6","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171741","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}

{"title":"Filling Gap and Geographic Distribution Map of Elachistocleis helianneae Caramaschi, 2010 (Amphibia: Anura: Microhylidae)","authors":"Elton Monteiro,&nbsp;Jade Bentes Mourão,&nbsp;Isabelly G. Martins,&nbsp;David Soares,&nbsp;Síria Ribeiro,&nbsp;Alfredo P. Santos-Jr","doi":"10.1111/aec.70080","DOIUrl":"https://doi.org/10.1111/aec.70080","url":null,"abstract":"<p>The genus <i>Elachistocleis</i> comprises fossorial frogs distributed throughout Central and South America. Despite their wide distribution, species such as <i>Elachistocleis helianneae</i> Caramaschi, 2010 (Anura: Microhylidae) are poorly documented due to their cryptic behaviour. Here, we present the first record of <i>E. helianneae</i> for the western region of Pará state, in the central Brazilian Amazon. Four specimens (one juvenile and three adults) were collected during nocturnal surveys in temporary puddles along the BR-163 highway between March and April 2022. Additionally, an updated distribution map of the species was created, incorporating this new record and data available in the literature. The new record fills a significant gap in the distribution of <i>E. helianneae</i> in the central Amazon, which previously spanned over a thousand kilometres. Our record is located approximately 590 km from the closest record to the west, in the state of Amazonas, and about 520 km from the nearest record to the east, in the state of Amapá. The Santarém record significantly improves our understanding of the distribution of <i>E. helianneae</i>, emphasising the importance of targeted surveys in underexplored habitats. Our findings highlight the importance of filling distributional gaps to enhance knowledge of amphibian biodiversity and inform conservation efforts.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 6","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171337","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}

{"title":"Are Lizard Assemblages From the Atlantic Forest Under the Influence of Ecological Release?","authors":"A. A. M. Teixeira,&nbsp;P. Riul,&nbsp;S. V. Brito,&nbsp;D. A. Teles,&nbsp;J. A. Araujo Filho,&nbsp;W. O. Almeida,&nbsp;D. O. Mesquita","doi":"10.1111/aec.70065","DOIUrl":"https://doi.org/10.1111/aec.70065","url":null,"abstract":"<div>\u0000 \u0000 <p>Ecological release is a key concept that describes how species increase their density and expand their niche in response to reduced competition. This phenomenon is commonly studied in island systems, but its occurrence in naturally isolated habitats within continents remains underexplored. To address this gap, we compared lizard assemblages between the remnants of the coastal Atlantic Forest (non-isolated areas) and naturally isolated forest relicts. Our predictions were that in isolated areas, lizard density and niche dimensions (e.g., diet) should be larger due to the absence of possible competitors, as well as a more generalised morphology. We verified that non-isolated areas had greater lizard richness than naturally isolated forest relicts. However, there was no difference between the type areas in relation to the average abundance and average breadths of the lizard niches (calculated from the volume of prey in the stomachs). In contrast, the average nearest neighbour Euclidean distance of lizard assemblages (from morphological data) was lower in isolated areas (more generalised) compared to non-isolated areas. We conclude that this study partially supports the ecological release hypothesis: the low number of competitors in naturally isolated forest enclaves (ecological opportunity) does not support density compensation and niche expansion (diet), emphasising the impact of historical factors on assemblage structure. In contrast, the more generalised morphology verified in lizards from isolated areas is considered evidence of ecological release, possibly driven by the expansion of microhabitat use. However, the lack of records on the spatial use of the studied lizards underscores the need for further research to confirm this relationship.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140536","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}

{"title":"The State of Biological Research in Forest Canopies: Colombia as a Case Study for Megadiverse Tropical Countries","authors":"David L. Anderson,&nbsp;Julián Lozano-Flórez,&nbsp;Sandra P. Galeano,&nbsp;Daniela García-Cobos,&nbsp;Nicolás Reyes-Amaya,&nbsp;Eliana Barona-Cortés,&nbsp;Julián Clavijo-Bustos,&nbsp;Johann Stephens Cárdenas-Bautista,&nbsp;Sebastián Cifuentes-Acevedo,&nbsp;Gustavo A. Bravo,&nbsp;Luis Felipe Barrera,&nbsp;Angelica Guzmán,&nbsp;Nathalia Moreno-Niño,&nbsp;Sandra Milena Urbano-Apráez,&nbsp;Carolina Gómez-Posada,&nbsp;Angela M. Mendoza-Henao","doi":"10.1111/aec.70075","DOIUrl":"https://doi.org/10.1111/aec.70075","url":null,"abstract":"<div>\u0000 \u0000 <p>Forests are a critical interface between Earth's terrestrial biomass and the atmosphere that play a pivotal role in biodiversity conservation and ecosystem services provision. Despite their importance, the study of forest canopies has been hindered by accessibility challenges. Because canopy biodiversity and ecology are inadequately sampled from the ground, the historic dependence on ground-based data limits our understanding of forest biology at local and regional scales, which in turn can obstruct or challenge the setting of conservation priorities. This is particularly true for tropical countries with the highest levels of forest biodiversity and degradation. We evaluate the published research outputs from canopy research in Colombia, a megadiverse tropical country that faces escalating deforestation rates, which may serve as a model for tropical countries with high levels of biodiversity and mounting conservation challenges. Through a comprehensive literature review spanning 1974–2022, we assessed the taxonomic groups, research objectives, methodological approaches, and geographical distribution of canopy research. Our findings reveal that canopy research in Colombia is skewed in its taxonomic focus towards vascular plants and its geographic coverage is greatest in the Andes. Moreover, most studies treated the canopy as a covariate rather than the primary research objective, thereby limiting possible inferences into canopy biodiversity. Our results offer a call to action to increase the number of canopy studies in Colombia, emphasising the need for increased geographic representation, capacity-building, interdisciplinary collaboration, and the involvement of non-academic stakeholders. As the Global South faces critical conservation challenges, understanding canopy biodiversity and processes will be essential for informed conservation and sustainable forest management strategies in biologically diverse nations. We conclude by proposing four lessons from Colombia to advance canopy research in megadiverse tropical countries.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140414","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}

{"title":"Koalas (Phascolarctos cinereus) and Stemflow: Drinking More Than Just Water","authors":"Connor Flanagan,&nbsp;Mark B. Krockenberger,&nbsp;John T. Van Stan II,&nbsp;Janine Duffy,&nbsp;Valentina S. A. Mella","doi":"10.1111/aec.70076","DOIUrl":"https://doi.org/10.1111/aec.70076","url":null,"abstract":"<p>Stemflow, water that flows down the outside of tree stems during precipitation events, is a type of free water used by koalas (<i>Phascolarctos cinereus</i>) for drinking, alongside the moisture obtained from the <i>Eucalyptus</i> leaves consumed in their diet. The properties of stemflow in the context of its utilisation by animals are currently unknown. In an increasingly water-limited environment due to climate change, understanding the stemflow characteristics of trees that endangered animals like koalas are known to drink from may be of conservation importance. This study examines the stemflow of trees selected by koalas for drinking in the You Yangs Regional Park, Victoria, Australia, and compares them with nondrinking trees of the same species to determine if koalas exhibit a preference for specific stemflow properties (i.e., volume or biochemical properties). There was substantial variation in the solute concentrations and bacterial loads from stemflow of different trees, some of which could be attributed to species and tree size differences. Overall, our findings suggest that koalas opportunistically consume stemflow during rainfall, independently of its characteristics. There was no evidence of koala pathogens, <i>Cryptococcus</i> spp. or <i>Chlamydia pecorum</i>, and of potentially toxic levels of alkaline or heavy metals in stemflow. Hence, stemflow represents an important and safe source of free water for koalas. Future koala habitat protection policy should consider the ecohydrological needs of koalas and include stemflow as a key tree characteristic in habitat suitability mapping. Our results open the way to research into the prevalence of stemflow-drinking behaviours across the broader species range and its occurrence in other arboreal and endangered species.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118129","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}

{"title":"Seasonal Thermoregulation of Brush-Tailed Mulgaras (Dasycercus blythi)","authors":"Martin Campbell,&nbsp;Gerhard Körtner,&nbsp;Rachel Paltridge,&nbsp;Fritz Geiser,&nbsp;Zenon Czenze","doi":"10.1111/aec.70064","DOIUrl":"https://doi.org/10.1111/aec.70064","url":null,"abstract":"<p>In Australia's arid zone, brush-tailed mulgaras (<i>Dasycercus blythi</i>) occupy burrows throughout the year, use bouts of energy/water saving torpor during the winter reproductive season, but little is known about their thermoregulation outside of winter. We used temperature-telemetry to investigate the daily body temperature (<i>T</i>_b) fluctuations during both winter and summer. In winter, males and females readily used torpor (males = 88.0% ± 10.6% from 150 days tracked, <i>n</i> = 3; females = 85.4% ± 5.8% from 151 days tracked, <i>n</i> = 2) and in summer torpor was rare in both sexes (males = 1.6% ± 1.9%, 163 days tracked, <i>n</i> = 4; females = 3.0% ± 2.8%, 157 days tracked, <i>n</i> = 4). The minimum winter <i>T</i>_b was 11.7°C (mean <i>T</i>_b = 23.3°C ± 4.2°C males; 19.6°C ± 5.1°C females); in summer <i>T</i>_b did not fall below 30°C. Torpor bouts in winter lasted for 7.1 ± 6.1 h in males and 11.8 ± 7.8 h in females; in summer torpor bouts were &lt; 120 min in both sexes. Torpor expression differed between sexes during winter, likely due to different selective pressures, with females using deeper and longer torpor bouts than males. In summer, no sexual differences in torpor patterns were observed. Summer torpor use by mulgaras is likely crucial for energy and water conservation in the arid zone, and future conservation work should focus on summer adaptations.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aec.70064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091433","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}

{"title":"Leaf Traits Explain Shrubs' and Herbs' Functional Composition Shifts in a Climate-Impacted Tropical Montane Grassland","authors":"Bianca Butter Zorger,&nbsp;Ilaine Silveira Matos,&nbsp;Bruno Henrique Pimentel Rosado","doi":"10.1111/aec.70069","DOIUrl":"https://doi.org/10.1111/aec.70069","url":null,"abstract":"<div>\u0000 \u0000 <p>Atmospheric models predict increases in temperature worldwide. However, such predictions are not always accurate in high-elevation ecosystems, due to their specific environmental characteristics (e.g., influence of fog in vegetation via foliar water uptake, high atmospheric demand). We propose that leaf morphological traits usually employed in paleoclimate reconstruction (i.e., toothed leaves presence, leaf size categories) could also be used to predict future climate change effects on montane ecosystems. By correlating such leaf traits with mean annual temperature for 90 Southern Hemisphere localities (including a tropical montane grassland in Brazil) we evaluated whether temperature increases (3°C) will result in functional composition shifts in our tropical montane grassland site. Additionally, using a dataset of 63 plant species for foliar water uptake and nine species for leaf water potential, stomatal conductance and turgor loss point, we evaluated if those physiological traits explain the mechanisms behind compositional change in the tropical montane grassland, and how those physiological traits are associated with the presence/absence of toothed leaves. We found that in the tropical montane grassland, an increase of 3°C in temperature by the year 2100 will likely increase the proportion of species with entire leaves from 33.3% to 70.4%. As leaves with entire margins tend to exhibit lower transpiration surfaces, this change could increase the proportion of water-saving strategist species in the vegetation. We also showed that plants with toothed leaves tend to have higher leaf water potentials/higher stomatal conductance, making them possibly more vulnerable to future atmospheric droughts. In summary, an increase in temperature will likely cause an increase in the proportion of drought-resistant species in the tropical montane grasslands. Therefore, models combining leaf traits usually used in paleoclimate reconstruction and physiological traits can be useful for predicting vegetation responses to climate change.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085005","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}

{"title":"Decision Analysis for Sustained Control vs. Eradication of Invasive Pines: A Case Study in the Southern Pampas of Argentina","authors":"Roy E. Elicer,&nbsp;Gabriela I. E. Brancatelli,&nbsp;Sergio M. Zalba","doi":"10.1111/aec.70038","DOIUrl":"https://doi.org/10.1111/aec.70038","url":null,"abstract":"<div>\u0000 \u0000 <p>Biological invasions are one of the main drivers of change in terrestrial ecosystems and also a major expenditure in the budget of conservation units. Management of invasive species involves sets of options, including the alternatives of sustained control aimed at containing the spread of the invader or reducing its density or occupation area vs. the complete eradication of the species from a given site. Grasslands are particularly affected by the expansion of alien trees and shrubs that provoke not just a change in species composition but also a shift in the structure and functioning of the whole ecosystem. In this paper we compare the alternatives of sustained control (containment) vs. eradication and vs. no intervention for a stand of invasive alien pines growing in a grassland nature reserve in the southern Argentinean Pampas. We built a decision analysis schema considering both the effects of the pines on native plant communities and the costs of mechanical control. We compared total vegetation cover, plant species richness, and composition in plots located in areas with different densities of pine trees and in controls free of the invasion. The costs of controlling pines were calculated from actual management interventions in sites with different tree densities. Areas with high density of pines were associated to an impoverishment in vegetation richness and diversity with respect to those at medium and low tree density. Pines were associated with changes in the floristic composition of the piedmont grasslands, including an increase in the abundance of exotic grasses. Cost analysis revealed that sustained control equates to the investment of eradication in thirty years. If we add to the analysis the capacity of <i>P. halepensis</i> to carry out long-distance dispersal events that can result in new invasion nuclei, eradication appears as the most efficient management alternative both in environmental and budgetary terms.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085006","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}

{"title":"The Effects of Temperature on the Swimming Performance, Starvation-Survival and Morphometrics of Zoea 1 Larvae of the Kelp Crab (Taliepus dentatus) From Central Chile","authors":"Lucas Bravo-Guzmán,&nbsp;Milena Cano,&nbsp;Mauricio F. Landaeta,&nbsp;Sergio A. Navarrete,&nbsp;Simone Baldanzi","doi":"10.1111/aec.70066","DOIUrl":"https://doi.org/10.1111/aec.70066","url":null,"abstract":"<div>\u0000 \u0000 <p>Natural and anthropogenic-induced changes in sea surface temperature (SST) affect all marine organisms, including the critical larval stages of coastal invertebrate species. Changes in sea surface temperature affect larval stages that must respond to these changes behaviourally, physiologically and, in some cases, alter morphological traits. Here, we evaluated the effects of rearing temperature on starvation-survival, swimming performance and morphology of zoea 1 larvae of the kelp crab (<i>Taliepus dentatus</i>). Females were acclimatised to 15°C, the average SST in the study region, until larval hatching. Rapid exposure of unfed larvae to 12°C significantly reduced starvation-survival (LT₅₀), whereas no significant differences were found between 15°C and 17°C. Larvae swam faster but for less time at 12 compared to 15°C and 17°C. Exposure to temperature induced changes in the dorsal spine shape, which were apparent after only 24 h of exposure to altered temperature and increased after 8 days. Overall, our results suggest that exposure to temperature can rapidly alter the shape, survival and swimming performance of larvae, inducing different energy-demanding behavioural responses. We contend that water temperature on marine invertebrate larvae can significantly impact their physiology and morphology even after a few hours of exposure, and we suggest that future studies should define environmentally relevant variation when setting lab-based experiments in order to correctly extrapolate laboratory results within the variable coastal environments.</p>\u0000 </div>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"50 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085007","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}