Oecologia最新文献_第4页

Oviposition strategies of Amazonian dragonflies in response to anthropogenic gradients. 亚马逊蜻蜓产卵策略对人为梯度的响应。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-20 DOI: 10.1007/s00442-025-05743-y

Lenize B Calvão, Michael J Samways, Ana Paula J Faria, Maria Fernanda R Ferreira, Gabriel M Cruz, Alexandro C Florentino, Leandro Juen

{"title":"Oviposition strategies of Amazonian dragonflies in response to anthropogenic gradients.","authors":"Lenize B Calvão, Michael J Samways, Ana Paula J Faria, Maria Fernanda R Ferreira, Gabriel M Cruz, Alexandro C Florentino, Leandro Juen","doi":"10.1007/s00442-025-05743-y","DOIUrl":"10.1007/s00442-025-05743-y","url":null,"abstract":"Odonata adults exhibit diverse oviposition strategies influenced by environmental conditions. However, transformed landscapes may diminish suitable oviposition sites due to environmental homogenization. We hypothesize that local environmental factors play a pivotal role for endophytic and epiphytic species, which selectively choose microhabitats for oviposition, leading to a Clementsian pattern along the Habitat Integrity gradient (HII). Conversely, exophytic species, depositing eggs directly in water without specific habitat preferences, would display a Clementsian pattern within the catchment area, characterized by the Catchment Disturbance Index (CDI). We sampled 72 streams across an anthropogenic impact gradient in the Capim watershed, northeast Pará, Brazil, and evaluated the HII and CDI. Odonata species were categorized into endophytic, epiphytic, and exophytic groups based on literature information, and the distribution patterns of the Odonata metacommunity were evaluated using Metacommunity Structure Elements analysis. Our results showed variations in the metacommunity structure depending on reproductive strategies. Endophytic oviposition species exhibited Clementsian patterns at both local and regional scales. Conversely, exophytic species demonstrated a Gleasonian structure locally and regionally within the catchment area with an anthropogenic gradient. This study emphasizes the significance of dragonfly reproductive strategies for monitoring and conservation efforts. Furthermore, understanding the interplay between reproductive behavior and anthropogenic impacts provides valuable insights for effective conservation planning in Amazonian streams.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"105"},"PeriodicalIF":2.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Ecological legacies in a tropical savanna: woody layer responses to long-term changes in soil chemistry. 热带稀树草原的生态遗产：木本层对土壤化学长期变化的响应。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-20 DOI: 10.1007/s00442-025-05747-8

Isabela B Castro, Leonardo Ferreira-Sousa, Thiago R B Mello, Alexandra Martins, Mercedes M C Bustamante

{"title":"Ecological legacies in a tropical savanna: woody layer responses to long-term changes in soil chemistry.","authors":"Isabela B Castro, Leonardo Ferreira-Sousa, Thiago R B Mello, Alexandra Martins, Mercedes M C Bustamante","doi":"10.1007/s00442-025-05747-8","DOIUrl":"10.1007/s00442-025-05747-8","url":null,"abstract":"Nutrient availability and soil pH are key drivers of ecosystem functioning, and changes in these factors can generate lasting effects that are not well understood. In Brazilian tropical savannas, plant communities are adapted to nutrient-poor and acidic soils, therefore changes in soil chemistry can affect vegetation structure. Here, we report the legacy effects on woody plant species composition and taxonomic and functional diversity of enhancing nutrient availability and increasing soil pH in a long-term fertilization experiment, following five years of nutrient addition cessation. The treatments included N, P, N + P additions and liming in a typical savanna. We inventoried all woody species and collected functional traits related to nutrient use from 676 individuals from 18 species. Even five years after nutrient cessation, soil variables (pH and nutrient content) remain altered compared to the control, with higher pH in the liming treatment and lower pH in the nutrient addition treatments. NP addition and liming shifted the species composition benefiting few dominant species. Species diversity decreased across all treatments, except for the N treatment which pointed to the predominant role of P limitation and soil pH in these communities. Increased soil pH due to the legacy effect of liming decreased taxonomic and functional diversity. In these tropical savannas, changes in soil natural conditions, especially by the liming, threaten species and functional diversity, impacting ecosystem functioning. Plant communities may need a long time to recover and some ecosystems may not return to their historical configuration after nutrient enrichment.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"106"},"PeriodicalIF":2.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Copycat cannibals: witnessing cannibalism early in life affects adult behaviour. 模仿同类相食：小时候目睹同类相食会影响成年后的行为。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-20 DOI: 10.1007/s00442-025-05748-7

Ítalo Marcossi, Morgana M Fonseca, Sarah F J Souza, Caio H B de Assis, Rafael S Iasczczaki, Gabriel M Beghelli, Rafael Bittencourt, Angelo Pallini, Yasuyuki Choh, Arne Janssen

{"title":"Copycat cannibals: witnessing cannibalism early in life affects adult behaviour.","authors":"Ítalo Marcossi, Morgana M Fonseca, Sarah F J Souza, Caio H B de Assis, Rafael S Iasczczaki, Gabriel M Beghelli, Rafael Bittencourt, Angelo Pallini, Yasuyuki Choh, Arne Janssen","doi":"10.1007/s00442-025-05748-7","DOIUrl":"10.1007/s00442-025-05748-7","url":null,"abstract":"Cannibalism is ubiquitous in the animal kingdom. The evolution and causation of cannibalistic behaviour have been amply investigated, but the ontogeny has received less attention. Here, we studied the ontogeny of cannibalistic behaviour in the tiny, blind predatory mite Amblyseius herbicolus. We found that individuals that were exposed to egg-cannibalizing adults when juvenile developed into cannibalistic adults more than 2.5 times as often as juveniles without such exposure. This was not due to their experience with eggs pierced by the adults: exposing juveniles to artificially pierced eggs did not result in increased cannibalism upon becoming adult. The exposure of juveniles to cannibalistic adults did not result in significant increases in juvenile mortality; hence, no selection against certain behavioural syndromes occurred during the juvenile stages. We therefore conclude that the experience with cannibalistic adults changed the behaviour of juveniles later in life. To the best of our knowledge, this is the first study showing that witnessing cannibalism as juvenile results in a higher tendency to cannibalize as adult.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"107"},"PeriodicalIF":2.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12181220/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Experimental drought consistently underestimates productivity responses to natural drought in four Central US grasslands. 实验干旱持续低估了美国中部四个草原对自然干旱的生产力响应。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-19 DOI: 10.1007/s00442-025-05746-9

Kathleen V Condon, Charles J W Carroll, Robert J Griffin-Nolan, Ingrid J Slette, Kate D Wilkins, Melinda D Smith, Alan K Knapp

{"title":"Experimental drought consistently underestimates productivity responses to natural drought in four Central US grasslands.","authors":"Kathleen V Condon, Charles J W Carroll, Robert J Griffin-Nolan, Ingrid J Slette, Kate D Wilkins, Melinda D Smith, Alan K Knapp","doi":"10.1007/s00442-025-05746-9","DOIUrl":"10.1007/s00442-025-05746-9","url":null,"abstract":"Climate change is increasing the frequency and severity of droughts globally, and grasslands are particularly vulnerable to such hydrological extremes. Drought effects at the ecosystem scale have been assessed both experimentally and through the study of naturally occurring drought, with emerging evidence that the magnitude of drought effects may vary depending on the approach used. We took advantage of a decadal study of four grasslands to directly contrast responses of aboveground net primary productivity (ANPP) to simulated vs. natural drought. The grasslands spanned a ~ threefold mean annual precipitation gradient (335-857 mm) and were all subjected to a natural 1-year drought (~ 40% reduction in precipitation from the long-term mean) and a 4 year experimental drought (~ 50% precipitation reduction). We expected that the 4 year drought would reduce ANPP more, and that post-drought recovery would be delayed, compared to the 1-year drought. We found instead that the short-term natural drought reduced ANPP more strongly than the simulated drought in all grasslands (~ 10 to ~ 50%) likely due to the co-occurrence of higher temperatures and vapor pressure deficits with reduced precipitation. Post-drought recovery was site specific and each site differed in their recovery from the natural and experimental droughts. These results align with past analyses that experiments that only manipulate soil moisture likely underestimate the magnitude of natural drought events. However, experiments can provide valuable insight into the relative sensitivity of ecosystems to reduced precipitation and soil moisture, a key aspect of drought.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"104"},"PeriodicalIF":2.3,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12178983/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Correction: Floral traits and density are uneven drivers of heterospecific pollen deposition in a biodiverse tropical highland community. 更正：在一个生物多样性的热带高原群落中，花性状和密度是异种花粉沉积的不均匀驱动因素。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-18 DOI: 10.1007/s00442-025-05738-9

Nathália Susin Streher, Pedro Joaquim Bergamo, Tia-Lynn Ashman, Marina Wolowski, Marlies Sazima

引用次数: 0

Intraspecific differences in leaf decomposition and associated traits in closely related Carex species: a microcosm experiment. 密切相关的苔属植物叶片分解及其相关性状的种内差异：一个微观实验。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-12 DOI: 10.1007/s00442-025-05740-1

Szilvia Márta Neumann, Jules Segrestin, Marie Konečná, Aleš Lisner, Markéta Applová, Petr Blažek, Anna E-Vojtkó, Eva Janíková, Lars Götzenberger, Jan Lepš

{"title":"Intraspecific differences in leaf decomposition and associated traits in closely related Carex species: a microcosm experiment.","authors":"Szilvia Márta Neumann, Jules Segrestin, Marie Konečná, Aleš Lisner, Markéta Applová, Petr Blažek, Anna E-Vojtkó, Eva Janíková, Lars Götzenberger, Jan Lepš","doi":"10.1007/s00442-025-05740-1","DOIUrl":"10.1007/s00442-025-05740-1","url":null,"abstract":"Litter decomposition is a fundamental process in carbon and nutrient cycling in terrestrial ecosystems. In a microcosm experiment we investigated the determinants of leaf decomposition with consideration of the 'afterlife' effect hypothesis, which suggests a connection between green leaf traits and the decomposability of leaf material. We collected senesced litter and living leaves of individuals of four Carex species widely distributed in the Czech Republic. We aimed to determine the extent of intra- and interspecific variability in decomposition rates (k values), whether species ranking was consistent along environmental gradients and whether intraspecific trait variability affected litter decomposability, as we would expect from the 'afterlife' effect hypothesis. While litter quality and decomposition rates significantly differed between fresh leaves and litter, species identity explained a prominent amount of variability in both. The effect of populations was around a tenth of species identity's, nonetheless still significant. Environmental variables and leaf traits generally showed rather weak or non-significant correlations with decomposition rates, which suggests that within closely related species ecological preferences might not be correlated with leaf decomposability, nor the conditions of individual localities are modifying tissue quality in a way to affect decomposability. While the correlation between fresh leaf and litter decomposition rates was not very strong (r = 0.51), fresh leaves provided a fair prediction of litter decomposition. However, considering the pattern of intra- and interspecific differences in decomposition rates, and the quality of fresh leaves and litter, using litter to determine leaf decomposability might give more realistic results.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"102"},"PeriodicalIF":2.3,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12162743/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Correction: Do savanna trees mast? Phenological dynamics of flowering and fruiting in savanna tree species. 更正：热带草原上的树有桅杆吗？热带草原树种开花和结果的物候动态。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-06 DOI: 10.1007/s00442-025-05741-0

Corli Coetsee, Benjamin J Wigley, Steven I Higgins

引用次数: 0

Experimental comparison of the genetic component of pollinator effectiveness in a shrub pollinated by birds, non-flying mammals and European honeybees. 由鸟类、非飞行哺乳动物和欧洲蜜蜂传粉的灌木传粉者有效性遗传成分的实验比较。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-06 DOI: 10.1007/s00442-025-05736-x

Stanislaw K Wawrzyczek, Siegfried L Krauss, Susan E Hoebee, Ryan D Phillips

{"title":"Experimental comparison of the genetic component of pollinator effectiveness in a shrub pollinated by birds, non-flying mammals and European honeybees.","authors":"Stanislaw K Wawrzyczek, Siegfried L Krauss, Susan E Hoebee, Ryan D Phillips","doi":"10.1007/s00442-025-05736-x","DOIUrl":"10.1007/s00442-025-05736-x","url":null,"abstract":"The range and frequency of pollinator movement, influences patterns of pollen dispersal with consequences for plant mating. It is predicted that pollination by birds promotes outcrossing and multiple paternity. Alternatively, pollination by insects or non-flying mammals (NFMs) is expected to increase inbreeding and correlation of paternity, leading to less genetically diverse and less vigorous seedlings. We tested these predictions in Banksia catoglypta (Proteaceae)-an obligately outcrossing heathland shrub pollinated by honeyeater birds, NFMs (honey possums and rodents) and insects (mostly introduced Apis mellifera). Previous research employing selective pollinator exclusion determined that pollination by NFMs was associated with reduced fruit set, compared to flying pollinators. Here, we used microsatellite genotyping of seedling families and a common garden experiment to compare the effectiveness of bird, NFM, and insect pollinators in terms of the genetic quality and vigour of the resulting seedlings. Despite floral traits of B. catoglypta suggesting adaptation to mammalian pollinators, pollination solely by NFMs led to lower multilocus outcrossing rates (tm, indicating biparental inbreeding) and higher correlation of paternity (rp), compared to pollination by flying pollinators (birds and insects combined). Otherwise, there were no significant differences between pollination treatments and open-pollinated controls. Overall, seedling survival was positively correlated with individual heterozygosity, with seedlings resulting from pollination solely by NFMs least likely to survive, and exclusion of NFMs associated with increased seedling survival-although these effects were slight. Our results highlight the importance of quantifying plant mating and seedling fitness for understanding the consequences of pollination by different animals.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"101"},"PeriodicalIF":2.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12144075/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Leaf economics of deciduous and evergreen plants: how do they exhibit trait optimization under resource variations and environmental constraints. 落叶和常绿植物的叶片经济学：资源变化和环境约束下它们如何表现出性状优化

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-05 DOI: 10.1007/s00442-025-05734-z

Kouki Hikosaka, Yusuke Onoda, Kaoru Kitajima

{"title":"Leaf economics of deciduous and evergreen plants: how do they exhibit trait optimization under resource variations and environmental constraints.","authors":"Kouki Hikosaka, Yusuke Onoda, Kaoru Kitajima","doi":"10.1007/s00442-025-05734-z","DOIUrl":"10.1007/s00442-025-05734-z","url":null,"abstract":"Leaf habit, whether a plant is deciduous or evergreen, is one of the most conspicuous traits in plant species, ecosystems, and biomes. In this review, we discuss theories and empirical patterns of deciduous and evergreen habits with a focus on the optimal strategies. Historically, optimal leaf habits and leaf lifespans (LL) have been explained from the viewpoints of carbon economy and nutrient use. In the leaf economics spectrum, deciduous and evergreen species are positioned at the resource-acquisitive and resource-conservative sides of the spectrum, respectively. Seasonal variations in leaf traits of deciduous species could be understood simply as optimization of carbon economy in relation to the progress of the growth season. Evergreen species, however, exhibit more complex patterns, which could be understood as acclimation to seasonal environmental changes or resource allocation to leaf replacement and reproduction. Optimal timing of leaf shedding in evergreen species varies depending on the limiting factor for leaf retention. The return on investment (RI) through the lifetime of a leaf should be greater in evergreen species when there is no environmental suppression. However, RI of evergreen species is often suppressed by seasonal environment or species interaction. Deciduous species can have comparable RIs with evergreen species when they can occupy better environment such as gaps in forests. In conclusion, which leaf habit is advantageous can be understood from trait optimization perspectives. Such knowledge should help forecast how forest ecosystems will respond to changing climate and other anthropogenic environmental impacts.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"99"},"PeriodicalIF":2.3,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12141400/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144226026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Uncovering multiple influences on space use by deer mice using large ecological networks. 揭示大型生态网络对鹿鼠空间利用的多重影响。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-04 DOI: 10.1007/s00442-025-05731-2

Sean O'Fallon, Noa Pinter-Wollman, Karen E Mabry

{"title":"Uncovering multiple influences on space use by deer mice using large ecological networks.","authors":"Sean O'Fallon, Noa Pinter-Wollman, Karen E Mabry","doi":"10.1007/s00442-025-05731-2","DOIUrl":"10.1007/s00442-025-05731-2","url":null,"abstract":"Space use by animals is affected by multiple factors; previous researchers have examined the effects of influences, such as sex, body condition, and population density on home range area. However, evaluating the simultaneous influences of multiple factors on animal space use has been relatively intractable due to sample size limitations. We capitalize on National Ecological Observatory Network (NEON) data to ask what factors determine space use by deer mice (genus Peromyscus). We examined data from 10 years of repeated captures of individually-identified mice at 36 sites across North America. We confirmed previous findings that males have larger home ranges than females and that home range area decreases with increasing animal density. In addition, our large sample size (N = 2,420 individuals) enabled us to examine the interacting influences of these, and other, phenotypic and extrinsic factors using a robust statistical framework. We found that the relationship between body condition and home range area differs between male and female mice, and that habitat type, latitude, and animal density all interact to influence space use. We conclude that data from large ecological networks can be used to examine important behavioral questions that have long eluded investigators.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"98"},"PeriodicalIF":2.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12133976/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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