Oecologia最新文献_第2页

Energetic benefits of prey choice for a shark-eating shark. 对吃鲨鱼的鲨鱼来说，选择猎物的能量优势。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-27 DOI: 10.1007/s00442-025-05758-5

Erin T Spencer, Lisa A Hoopes, Jack J Morris, Demian D Chapman, Valerie Hagan, Mark Johnson, Nicholas L Payne, Yuuki Y Watanabe, Ruth E Dunn, Yannis P Papastamatiou

{"title":"Energetic benefits of prey choice for a shark-eating shark.","authors":"Erin T Spencer, Lisa A Hoopes, Jack J Morris, Demian D Chapman, Valerie Hagan, Mark Johnson, Nicholas L Payne, Yuuki Y Watanabe, Ruth E Dunn, Yannis P Papastamatiou","doi":"10.1007/s00442-025-05758-5","DOIUrl":"https://doi.org/10.1007/s00442-025-05758-5","url":null,"abstract":"Optimal foraging theory has been used to understand the foraging choices of animals but is rarely applied to large predatory fishes due to difficulties measuring their behavior in the wild. Great hammerhead sharks (Sphyrna mokarran) are atypical among sharks in that they prefer large prey, such as other sharks and large teleost species, rather than smaller teleost or invertebrate prey. Great hammerheads are known to hunt blacktip sharks (Carcharhinus limbatus) that form large seasonal aggregations off the coast of southern Florida. However, the foraging advantage of this dietary choice and hunting strategy is unclear. We equipped great hammerheads with biologging sensors (speed, video, sonar) to estimate swimming metabolic rates and prey encounter rates and then model the foraging benefits of hunting large prey (sharks) versus small prey (reef-associated teleosts). We estimate great hammerheads need to consume 0.7% body weight (BW) per day of shark prey or 0.9% BW per day of teleost prey. Our foraging model predicts that a ~ 110 kg hammerhead would only need to consume a whole ~ 25 kg blacktip shark once every 3 weeks and could survive 2 months during low blacktip density periods without feeding before starving to death. However, it would need to capture one to two ~ 1 kg teleost per day to avoid falling below its energetic baseline. Great hammerhead sharks may obtain significant benefits by hunting sharks in southern Florida, especially during the winter when prey density is high.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"113"},"PeriodicalIF":2.3,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144507156","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

Swollen-thorn acacias increased their investments in resident ants during an El Niño event. 在El Niño活动期间，肿刺金合欢增加了对蚂蚁的投资。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-27 DOI: 10.1007/s00442-025-05763-8

Cristian E Molina, Jonah M Naugle, Maikol Guevara, Emmy B Zeilstra, Yorlenis González, Sabrina Amador Vargas

{"title":"Swollen-thorn acacias increased their investments in resident ants during an El Niño event.","authors":"Cristian E Molina, Jonah M Naugle, Maikol Guevara, Emmy B Zeilstra, Yorlenis González, Sabrina Amador Vargas","doi":"10.1007/s00442-025-05763-8","DOIUrl":"https://doi.org/10.1007/s00442-025-05763-8","url":null,"abstract":"Species interactions are frequently context-specific. Climate fluctuations can inflict stress on individuals, inducing plasticity in their behavior or changes in resource allocation. Obligate mutualisms may be particularly sensitive to such fluctuations if they affect the quantity, quality, or timing of investments between partners. In the obligate mutualism between Pseudomyrmex ants and swollen-thorn acacias (Vachellia collinsii), the ants defend their host plant in exchange for domatia, extrafloral nectar, and protein-rich Beltian bodies. Ant reward size is known to vary temporally and according to the identity of the associated ant partner, with better-quality defenders (P. spinicola and P. simulans) receiving relatively more plant resources than non-defending ants. We studied how an El Niño-related drought impacted the investments of acacias in their ant colonies. Hence, we resampled acacias that were previously measured for ant rewards during a neutral El Niño Southern Oscillation period again during El Niño 2023. We predicted that water limitations would reduce the resources available for allocation toward ant colonies and that acacias hosting obligate-nesting Pseudomyrmex would show a greater decrease in ant rewards compared to plants associated with non-defending ants (Crematogaster sp.). Unexpectedly, we found that acacias allocated more resources to ant rewards in 2023, irrespective of the ant partner. Heightened herbivore pressure, increased light availability, decreased precipitation, or a combination of these factors could explain why acacias invested more in mutualism with ants. Though the long-term consequences of these climate fluctuations remain unknown, this work highlights the plasticity of coevolved mutualistic interactions in the face of global change.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"115"},"PeriodicalIF":2.3,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512253","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

Causes and consequences of long-term defaunation in multi-species aggregations: species traits predict freshwater mussel declines and decreases in biogeochemical storage and recycling. 多物种聚集长期退化的原因和后果：物种特征预测淡水贻贝数量下降和生物地球化学储存和再循环减少。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-26 DOI: 10.1007/s00442-025-05755-8

Jonathan W Lopez, Carla L Atkinson, Caryn C Vaughn

{"title":"Causes and consequences of long-term defaunation in multi-species aggregations: species traits predict freshwater mussel declines and decreases in biogeochemical storage and recycling.","authors":"Jonathan W Lopez, Carla L Atkinson, Caryn C Vaughn","doi":"10.1007/s00442-025-05755-8","DOIUrl":"https://doi.org/10.1007/s00442-025-05755-8","url":null,"abstract":"One of the foremost challenges in contemporary ecology is understanding the rapid loss of animal diversity and biomass, known as defaunation. The causes and consequences of defaunation depend on species traits that regulate which species are vulnerable to stressors and the ecosystem-level consequences of declines. We used a > 30-year long-term monitoring dataset collected from 21 sites in 4 rivers in south-eastern Oklahoma, USA, and a trait-based framework to identify defaunation in multi-species freshwater animal aggregations (freshwater mussels). We detected mussel density declines in 2 of the 4 rivers, encompassing 67% of the study sites. In the defaunated rivers, losses of mussel density led to biomass declines and losses of mussel-generated carbon and nutrient recycling and storage. Mussel aggregations only became defaunated in rivers where hydrologic data suggested drought-like conditions. There was also a regional increase in temperature, suggesting that low flows and high temperatures may have negatively impacted mussel populations in the defaunated rivers. Declines did not differ among thermal tolerance guilds-rather, declines were driven by species with life-history traits adapted for stable hydrologic conditions. Given the significant role that river ecosystems play in global biogeochemical processes, freshwater defaunation may have major consequences if continued unchecked. More broadly, trait-based approaches show clear promise for advancing the predictive capacity of animal ecology.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"111"},"PeriodicalIF":2.3,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144497571","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

Human disturbance alters the foraging and spatiotemporal activity of a large carnivore. 人为干扰改变了大型食肉动物的觅食和时空活动。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-26 DOI: 10.1007/s00442-025-05752-x

Gonzalo Barceló, Emiliano Donadio, Mathew W Alldredge, Jonathan N Pauli

{"title":"Human disturbance alters the foraging and spatiotemporal activity of a large carnivore.","authors":"Gonzalo Barceló, Emiliano Donadio, Mathew W Alldredge, Jonathan N Pauli","doi":"10.1007/s00442-025-05752-x","DOIUrl":"10.1007/s00442-025-05752-x","url":null,"abstract":"Carnivore recovery is often promoted to restore ecosystem functioning. However, human-disturbed landscapes can alter the behavior and role of returning carnivores. To evaluate how different dimensions of a carnivore niche are affected across a gradient of human disturbance, we studied 83 pumas (Puma concolor) at seven populations in North and South America. We hypothesized that pumas inhabiting sites with high human disturbance would modify their niche by reducing space use, becoming more nocturnal and diversifying their diets. We quantified how landscape features affected puma home ranges, movement paths, diel activity, and step selection. Using stable isotopes, we quantified individual diet and dietary specialization, and population dietary niche width. Pumas decreased their movement rate with increasing human disturbance while some evidence indicates home ranges were reduced. Unexpectedly, diel activity was unaffected by human disturbance, but pumas decreased movement more during the day in areas with high disturbance. Similarly, pumas avoided highly disturbed areas during the day, but that avoidance was low at night. Finally, individual dietary specialization decreased because of pumas reduced consumption of native ungulates with increasing disturbance, although without changes in the population niche width. Responses to human disturbance were generally consistent across sites, with pumas adjusting their temporal, spatial, and foraging axes to decrease encounters with humans. Our results suggest that human-disturbed landscapes across regions alter the primary niche axes of pumas to construct a new realized niche in human landscapes, which may have important consequences for their ecological interactions and the functional role of this large carnivore.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"112"},"PeriodicalIF":2.3,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12202680/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144507157","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

Seasonal plasticity of thermal tolerance indicates resilience to future climate in Australian damselflies. 热耐受性的季节性可塑性表明澳大利亚豆娘对未来气候的适应能力。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-24 DOI: 10.1007/s00442-025-05745-w

Md Tangigul Haque, Shatabdi Paul, Marie E Herberstein, Md Kawsar Khan

{"title":"Seasonal plasticity of thermal tolerance indicates resilience to future climate in Australian damselflies.","authors":"Md Tangigul Haque, Shatabdi Paul, Marie E Herberstein, Md Kawsar Khan","doi":"10.1007/s00442-025-05745-w","DOIUrl":"10.1007/s00442-025-05745-w","url":null,"abstract":"An animal's response to climate warming is predominantly governed by its thermal tolerance. Seasonal temperature variation may indicate the boundaries of plasticity in insect thermal tolerance, which could predict the capacity to adapt to future climates. Here, we assess the changes in thermal breadth (the difference between the critical thermal maximum (CTmax) and critical thermal minimum (CTmin)) to estimate the thermal safety margin in Ischnura heterosticta and Xanthagrion erythroneurum damselflies across different seasons. For both species, CTmax and CTmin increased with monthly temperature, with a stronger increase of CTmin in summer. Overall, thermal breadth was broad in spring and autumn (around 41 degrees) but in summer we observed a large number of individuals with substantially narrower thermal breadth (down to 26-35 degrees). Our results establish considerable seasonal thermal plasticity in damselflies, which might provide a degree of resilience in future climates, yet during the most critical season (summer), heat spikes might push a substantial proportion of the population beyond their limits.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"109"},"PeriodicalIF":2.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187897/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144476205","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

Are leaf anatomical traits strong predictors of litter decomposability? Evidence from upper Andean tropical species along a forest successional gradient. 叶片解剖性状是凋落物分解能力的有力预测因子吗？安第斯山脉上部热带物种沿森林演替梯度的证据。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-24 DOI: 10.1007/s00442-025-05739-8

Dennis Castillo-Figueroa, Juan M Posada

{"title":"Are leaf anatomical traits strong predictors of litter decomposability? Evidence from upper Andean tropical species along a forest successional gradient.","authors":"Dennis Castillo-Figueroa, Juan M Posada","doi":"10.1007/s00442-025-05739-8","DOIUrl":"10.1007/s00442-025-05739-8","url":null,"abstract":"Litter decomposability has been linked to \"soft\" traits of green leaves, but relationships with \"hard\" traits associated with leaf anatomy remain unexplored. Examining anatomical traits within the leaf economic spectrum may enhance our understanding of litter decomposability. In this study, we analyzed the relationships between leaf anatomical traits and decomposability at both species and community levels along a successional gradient of upper Andean tropical forests in Colombia. We conducted a reciprocal translocation field experiment with 15 upper Andean species in 14 permanent plots around Bogotá, collecting 2520 litterbags at four times (3, 6, 12, 18 months). Using a multiple regression model based on foliar traits, we estimated decomposability for the remaining 48 species that compose the plant community (63 species in total) in the studied successional gradient. We measured several leaf anatomical traits in all 63 species and calculated community-weighted means and functional diversity indices with the most effective anatomical predictors of decomposability. We found that thicker cuticles, larger vascular bundles, higher spongy mesophyll proportion, and lower palisade mesophyll proportion are related to low decomposability. Plant communities with thicker protective structures slow down decay rates, while large palisade tissues with cylindrical cells increase litter breakdown. Decomposability did not change along succession due to the balance between high functional evenness in secondary forests and high functional richness in mature forests. Despite potential circularity and interdependence between functional diversity metrics, our study provides novel insights into the anatomical basis of decomposability and community dynamics in successional gradients of upper Andean tropical forests.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"110"},"PeriodicalIF":2.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187801/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144485306","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

UV treatment of the digestive fluid of Nepenthes hemsleyana pitcher plants affects their digestive process, possibly via reducing microbial inquilines. 紫外光处理猪笼草的消化液会影响其消化过程，可能是通过减少微生物群来实现的。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-06-24 DOI: 10.1007/s00442-025-05749-6

Julien L Bota, Christel Baum, Sofie Gawronski, T Ulmar Grafe, Gerald Kerth, Michael G Schöner, Caroline R Schöner

{"title":"UV treatment of the digestive fluid of Nepenthes hemsleyana pitcher plants affects their digestive process, possibly via reducing microbial inquilines.","authors":"Julien L Bota, Christel Baum, Sofie Gawronski, T Ulmar Grafe, Gerald Kerth, Michael G Schöner, Caroline R Schöner","doi":"10.1007/s00442-025-05749-6","DOIUrl":"10.1007/s00442-025-05749-6","url":null,"abstract":"Interactions with microbes are ubiquitous, and many of them are essential for the survival and success of plants. In Nepenthes pitcher plants, they occur as part of a diverse community of organisms, so-called inquilines, that live inside the digestive fluid of the pitcher traps. However, evidence is ambiguous regarding the role of microbial inquilines: they may complement the plants' prey digestion, fix atmospheric N, act as competitors that reduce plant-available nutrients or affect the plants in other ways unrelated to the breakdown of prey. In a field experiment on Borneo, we investigated the effect of UV disinfection of the digestive fluid on prey digestion of N. hemsleyana that captures and digests insects as well as bat faeces in its pitchers. We show that in the short term, the photosynthetic performance of plants with UV-treated digestive fluids decreases compared to untreated plants, likely due to lower abundances of microbial inquilines. However, at the end of 2 months, responses of pitcher plants with UV-treated and untreated digestive fluids tend to equalise. Nutrient source, whether from insects or bat faeces, does not influence prey digestion. We expect our findings to be a starting point for unveiling the ecological role of microbial inquilines in pitcher plants and how they interact with other inquiline groups of higher trophic levels. Ultimately, this will also help to improve understanding of the functioning and evolution of convergent interactions in other carnivorous plants.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 7","pages":"108"},"PeriodicalIF":2.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144476206","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

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