Oecologia最新文献_第9页

Impact of food availability on the thermal performance curves of male European green lizards (Lacerta viridis). 食物可得性对雄性欧洲绿蜥热性能曲线的影响

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-04-01 DOI: 10.1007/s00442-025-05699-z

Boglárka Mészáros, Lilla Jordán, Orsolya Molnár, János Török

{"title":"Impact of food availability on the thermal performance curves of male European green lizards (Lacerta viridis).","authors":"Boglárka Mészáros, Lilla Jordán, Orsolya Molnár, János Török","doi":"10.1007/s00442-025-05699-z","DOIUrl":"10.1007/s00442-025-05699-z","url":null,"abstract":"In a changing environment, characterized by human-induced rapid environmental change (HIREC), understanding the impacts of environmental stressors on reptile species is crucial. Preferred body temperatures (PBT) and thermal performance curves (TPCs) are comprehensive thermal physiology traits reflecting overall physiological performance and crucial for predicting species-specific responses to environmental changes. There is limited or conflicting information on how food availability affect the PBT and TPCs of lizard species, despite their significance in the context of the global decline in reptile species. The aim of this study was to experimentally investigate how food deprivation affects the PBT and TPCs of the European green lizards (Lacerta viridis). We exposed 30 adult male European green lizards to optimal and suboptimal food treatments. We assessed PBTs, and characterized the TPCs based on the thermal optimum (To), the maximum performance (Pmax) and performance breadth (B80) of the lizards. We found that food availability had a significant impact on preferred body temperature and locomotor performance. Lizards experiencing suboptimal conditions showed a preference for lower body temperatures, indicating an intention to minimize energy expenditure during fasting. Additionally, food-deprived lizards had wider B80 range, suggesting their thermal acclimatization to maintain effective performance across a broader temperature range. Our findings highlight the importance of food availability as a key environmental stressor influencing thermoregulation strategies. As habitat modifications and global warming continue, it is crucial to evaluate the impacts of these changes on species for the development of effective conservation strategies.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 4","pages":"57"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11961467/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753735","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

Plant size influences specific leaf area in palms: a case for the diminishing returns hypothesis. 植物大小影响棕榈的特定叶面积：收益递减假说的一个案例。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-28 DOI: 10.1007/s00442-025-05698-0

Gerardo Avalos, Kaila Frazer, Hélène Le Gall

{"title":"Plant size influences specific leaf area in palms: a case for the diminishing returns hypothesis.","authors":"Gerardo Avalos, Kaila Frazer, Hélène Le Gall","doi":"10.1007/s00442-025-05698-0","DOIUrl":"10.1007/s00442-025-05698-0","url":null,"abstract":"Body size is essential in determining an organism's functional performance and metabolic requirements, influencing biological processes from organisms to ecosystems. Metabolic scaling theory integrates the size-metabolism relationship, yet most research overlooks intraspecific trait variation due to ontogeny. Specific leaf area (SLA) is a critical functional trait that reflects investment on photosynthetic tissues relative to leaf construction costs. SLA influences photosynthetic capacity and growth rates and varies across life stages. While plants exhibit interspecific differences in acquisitive (high SLA, fast growth) and conservative (low SLA, slow growth) strategies, the diminishing returns hypothesis suggests that these strategies are shaped by the proportion of supporting structures that develop over the plant´s lifespan (intraspecific variation), predicting a negative SLA relationship with increasing size. In tropical environments, palms are ecologically important yet still understudied in functional traits. Here, we examine the relationship between SLA and size in six neotropical understory and canopy palm species (236 individuals). Results showed higher SLA in understory species and a negative SLA-size relationship across most species. SLA inversely correlated with leaf thickness and leaf water content. ANCOVA models explained substantial SLA variation related to palm size, with species-specific differences in regression slopes. These findings underscore the importance of considering inter- and intraspecific SLA variation and ontogenetic changes. Understanding the trade-off between acquisitive and conservative strategies within the context of the diminishing returns hypothesis offers insights into plant growth strategies and their ecological implications, which is essential for predicting plant adaptation to environmental gradients.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 4","pages":"56"},"PeriodicalIF":2.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736092","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

Floral trait dissimilarity indirectly decreases heterospecific pollen transfer through pollinator sharing in a subalpine meadow. 花性状差异间接减少了亚高山草甸通过传粉者分享的异种花粉转移。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-21 DOI: 10.1007/s00442-025-05694-4

Chunyan Zhao, Suyan Ba, Tao Zhang, Yage Li, Qiang Fang

{"title":"Floral trait dissimilarity indirectly decreases heterospecific pollen transfer through pollinator sharing in a subalpine meadow.","authors":"Chunyan Zhao, Suyan Ba, Tao Zhang, Yage Li, Qiang Fang","doi":"10.1007/s00442-025-05694-4","DOIUrl":"10.1007/s00442-025-05694-4","url":null,"abstract":"Co-flowering species are suggested to exhibit divergent floral traits to minimize interspecific competition. However, few studies have evaluated whether and by which pathways floral trait dissimilarity affects interspecific pollen transfer among co-flowering species, which limits our understanding of the interplay between mutualistic and competitive interactions within plant-pollinator networks. We conducted a three-year field investigation from 2021 to 2023 in a sub-alpine meadow in southwest China. We observed plant-pollinator interactions and identified pollen grains on the stigmas of co-flowering species to construct plant-pollinator visitation networks and heterospecific pollen transfer (HPT) networks. We also measured 18 floral traits across 44 co-flowering species, categorizing these traits into attractant traits (flower color spectra, corolla morphology) and reproductive traits (male and female organs). By calculating the dissimilarities in each floral trait category between species pairs, we conducted structural equation modeling to link the dissimilarities in floral traits between species pairs with pollinator sharing and HPT. Our results demonstrated that dissimilarities in flower color and corolla morphology significantly reduced pollinator sharing, and indirectly decreased HPT. Conversely, the dissimilarities in male and female-organ traits did not have a significant impact on HPT or pollinator sharing. Our findings support the theory that divergent floral traits help reduce interspecific competition, highlighting the adaptive significance of floral trait divergence in plant-pollinator interactions.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 4","pages":"55"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677138","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

Contrasting water, dry matter and air contents distinguish orthophylls, sclerophylls and succophylls (leaf succulents). 通过对比水分、干物质和空气含量来区分正叶物质、硬叶物质和叶肉物质。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-20 DOI: 10.1007/s00442-025-05686-4

Byron B Lamont, Heather C Lamont

{"title":"Contrasting water, dry matter and air contents distinguish orthophylls, sclerophylls and succophylls (leaf succulents).","authors":"Byron B Lamont, Heather C Lamont","doi":"10.1007/s00442-025-05686-4","DOIUrl":"10.1007/s00442-025-05686-4","url":null,"abstract":"Differences in leaf texture (hardness, thickness) distinguish orthophylls (soft leaves), sclerophylls (hard leaves) and (semi)succophylls (water-storing leaves). Texture is controlled by dry matter, water and air contents. Our aim was to a) identify the best index of succulence, b) assess how these three components vary with leaf type, and c) derive bounds for these properties among the four main leaf-texture classes. Eight contrasting species from the Namib Desert, South Africa were assessed for their leaf area (A), thickness (z), dry mass (D), saturated water content (Q), and relative volume of dry matter, water and air to derive various indices of leaf texture. Q/A (= QV•z), where QV is saturated water storage per unit volume of leaf and z is leaf thickness is an ideal index of succulence. Specific leaf area (SLA) is more suitable as an index of hardness (SLA-1 = D/A) but only among non-succulents. Rising leaf specific gravity among sclero-orthophylls is due to replacement of air by dry matter but water among succophylls. Collation of 13 worldwide studies showed that orthophylls can be distinguished by a Q/A ≤ 0.45 mg water mm-2 leaf surface from succophylls with Q/A ≥ 0.9, such that there is a divergent relationship among plants regarding their water-storing properties. Semi-succophylls can be defined as having a Q/A > 0.45 to < 0.9, and sclerophylls can be separated from orthophylls by a SLA ≤ 10 mm2 mg-1 dry mass. The distribution of these leaf texture classes may vary greatly within, and especially between, local floras.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 4","pages":"54"},"PeriodicalIF":2.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11926024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143670512","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

Patterns of seasonal plasticity in evaporative water loss and preferred temperature in three geckos of the wet-dry tropics. 干湿热带地区三种壁虎蒸发失水和偏好温度的季节可塑性模式。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-14 DOI: 10.1007/s00442-025-05692-6

Kimberley Day, Chava L Weitzman, Angga Rachmansah, Kade Skelton, Keith Christian

{"title":"Patterns of seasonal plasticity in evaporative water loss and preferred temperature in three geckos of the wet-dry tropics.","authors":"Kimberley Day, Chava L Weitzman, Angga Rachmansah, Kade Skelton, Keith Christian","doi":"10.1007/s00442-025-05692-6","DOIUrl":"10.1007/s00442-025-05692-6","url":null,"abstract":"Seasonal physiological plasticity (acclimatisation) facilitates homeostasis in changing environments and has been studied extensively with respect to thermal biology and metabolism. Less is known about seasonal changes in evaporative water loss (EWL) in response to changing water availability and humidity. The wet-dry tropics of northern Australia experience moderate seasonal temperature changes, but substantial changes in rainfall and humidity. We studied three gecko species (Amalosia rhombifer, Heteronotia binoei and Hemidactylus frenatus) in the wet and dry seasons with respect to their EWL, preferred body temperatures (Tpref), and their choice between a dry and humid refuge at and below Tpref. EWL was significantly lower in the dry season (66% of wet season values). Tpref for two of the species did not change seasonally, but A. rhombifer selected lower Tpref during the warmer wet season. Given a choice of refugia, the humid refuge at low temperatures was never preferred over the warm microhabitat. When both refugia were at the preferred temperature, only A. rhombifer showed a preference for the humid microhabitat. These results demonstrate that although thermoregulation is prioritised in the short term, hydroregulation (physiological plasticity in EWL) is adjusted in the longer term, with shifts occurring on a seasonal scale. However, it is possible that shifts in EWL may occur in response to prevailing weather conditions on a shorter timescale. Before broad generalisations can be drawn about the phenomenon of EWL plasticity, measurements need to be taken from more species in different climatic regions at ecologically relevant timescales.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 3","pages":"53"},"PeriodicalIF":2.3,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11909027/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630638","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

Natural history traits influence winners and losers for herpetological communities in disturbed tropical habitats. 自然历史特征影响着热带受干扰生境中爬行动物群落的胜败。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-12 DOI: 10.1007/s00442-025-05691-7

Rowland K Griffin, Todd R Lewis, Joseph Tzanopoulos, Richard A Griffiths

{"title":"Natural history traits influence winners and losers for herpetological communities in disturbed tropical habitats.","authors":"Rowland K Griffin, Todd R Lewis, Joseph Tzanopoulos, Richard A Griffiths","doi":"10.1007/s00442-025-05691-7","DOIUrl":"10.1007/s00442-025-05691-7","url":null,"abstract":"Habitat alteration can lead to a few 'winning' species outcompeting many 'losing' species, an effect commonly termed as 'Winner-Loser-Replacements' or WLRs. This can lead to homogenisation of species assemblages at phylogenetic and functional levels. Most previous studies analyse responses of species abundance without considering natural history traits associated with those species. This study uses fourth corner modelling techniques to investigate the interaction between ecological data and natural history trait information using a herpetofaunal assemblage that includes 19 species of amphibians, 28 snakes, and 20 lizards, in Parque Nacional Laguna del Tigre, Guatemala. A total of 120 transects were surveyed using Visual Encounter Surveys, comprising 18 in disturbed habitat, 66 in forest habitat, and 36 in edge habitat respectively. Overall, greater diversity of ecological traits was revealed in forest and edge habitats compared to disturbed habitats at the forest edge close to agricultural land. Models revealed that for amphibians (Hypopachus variolosus and Incilius valliceps) and snakes (Coniophanes schmidtii and Leptodeira septentrionalis), association with bare ground, and in the case of amphibians, leaf litter, predicts species persistence in disturbed habitats. Continued forest fragmentation in the region will result in increased edge effects, and a greater proportion of forest remaining in an early successional state, leading to a highly reduced, homogenized, amphibian and reptile assemblage. Using such models for community assemblages of animals to reveal the identity of WLR patterns in forests with continued fragmentation is a useful tool to reveal which species are at risk of impact before habitats become degraded.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 3","pages":"52"},"PeriodicalIF":2.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11897091/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143605860","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

Negative effects of nitrogen fertilization on herbivore fitness are exaggerated at warmer temperatures and in high-altitude populations. 氮肥对草食动物适应性的负面影响在较高温度和高海拔种群中被夸大。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-11 DOI: 10.1007/s00442-025-05690-8

Ange Raharivololoniaina, Roland Busch, Franziska Deppe, Anna Hitzler, Eva Plath, Tamara Rischen, Mine Yilmazer, Klaus Fischer

{"title":"Negative effects of nitrogen fertilization on herbivore fitness are exaggerated at warmer temperatures and in high-altitude populations.","authors":"Ange Raharivololoniaina, Roland Busch, Franziska Deppe, Anna Hitzler, Eva Plath, Tamara Rischen, Mine Yilmazer, Klaus Fischer","doi":"10.1007/s00442-025-05690-8","DOIUrl":"10.1007/s00442-025-05690-8","url":null,"abstract":"Biodiversity is currently under strong pressure due to anthropogenic global change. Different drivers of global change may exert direct and indirect effects on biodiversity, and may furthermore interact with one another, but our respective knowledge is still very limited. We investigated indirect and interactive effects of two important drivers of global change, eutrophication and climate change, in replicated low- and high-altitude populations of an insect herbivore, the butterfly Lycaena tityrus, in a laboratory setting. We found local adaptation in developmental traits, with low-altitude populations being adapted to warmer temperatures and longer seasons. Lycaena tityrus responded negatively to agriculturally relevant levels of fertilization of its host plant, showing reduced body mass and prolonged development time. Negative effects were particularly pronounced at warmer temperatures and in high-altitude populations. Our study adds to the increasing knowledge that different drivers of global change may interact and thereby increase the overall level of threat to biodiversity. We suggest that populations inhabiting naturally nutrient-poor environments might be even more vulnerable to agricultural intensification than others, potentially applicable to many species. These findings may have important implications for protecting numerous vulnerable species in the face of rapid environmental change.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 3","pages":"51"},"PeriodicalIF":2.3,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11893656/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143597404","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

High-elevation birds grow more slowly but to heavier weights than low-elevation birds. 高海拔的鸟类比低海拔的鸟类长得更慢，但体重更重。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-07 DOI: 10.1007/s00442-025-05685-5

Yangyang Guo, Haixin Gao, Xin Lu

{"title":"High-elevation birds grow more slowly but to heavier weights than low-elevation birds.","authors":"Yangyang Guo, Haixin Gao, Xin Lu","doi":"10.1007/s00442-025-05685-5","DOIUrl":"10.1007/s00442-025-05685-5","url":null,"abstract":"Documenting how growth strategies diverge among populations or species occupying different geographical locations can contribute to understanding life-history evolution. However, the existing literature on the geography of growth focuses on latitudinal gradients, leaving the growth-elevation relationship enigmatic. The knowledge gap limits our ability to capture a full picture of growth evolution at macroecological scales because organisms typically experience different selective pressures across these two geographical gradients. We filled this gap using data from 163 populations of 111 passerine species breeding in mainland China over an elevational span of 8-4500 m. Phylogenetic comparative analyses revealed that controlling for potentially confounding variables, the growth rate of nestling body mass decreased and the nestling period became longer as elevation increased. Also, high-elevation nestlings fledged at a heavier body mass relative to the adult than their low-elevation congeners. The observed growth patterns, coupled with fewer, larger eggs and prolonged parental care as demonstrated by earlier studies, suggest that avian life histories have slowed down toward high elevations. The life-history strategy, which stands in contrast to the fast pace of life toward high latitudes, is likely a response to increasingly stressful conditions with elevation, especially the limited availability of food and oxygen.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 3","pages":"50"},"PeriodicalIF":2.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573530","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

Comparison of seed traits between an invasive plant and its native competitor along a latitudinal gradient. 入侵植物与本土竞争植物种子性状沿纬度梯度的比较。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-06 DOI: 10.1007/s00442-025-05688-2

Hao-Yu Wang, Jiafang Huang, Liwen Zhang, Guanglong Qiu, Rencang Bu, Kam W Tang, Rob H Marrs, Chuan Tong

{"title":"Comparison of seed traits between an invasive plant and its native competitor along a latitudinal gradient.","authors":"Hao-Yu Wang, Jiafang Huang, Liwen Zhang, Guanglong Qiu, Rencang Bu, Kam W Tang, Rob H Marrs, Chuan Tong","doi":"10.1007/s00442-025-05688-2","DOIUrl":"10.1007/s00442-025-05688-2","url":null,"abstract":"Seeds are crucial for plant population maintenance and dispersal. Invasive species often exhibit seed traits that enhance their colonization success, such as increased dispersal potential, earlier germination, or greater resource reserves. However, few studies have compared seed traits between invasive and native plant species along environmental gradients. Here, we compared morphological traits and nutrient concentrations of the seeds of two competing species, the native common reed (Phragmites australis) and the invasive saltmarsh cordgrass (Spartina alterniflora), along a 20° latitudinal gradient of the Chinese coast, and their relationships with environmental factors. Significant differences were found between the two species for 11 of the 13 traits with respect to latitude. Specifically, the seed size of S. alterniflora decreased with increasing latitude, but P. australis showed a slight curvilinear relationship with latitude, reducing to a minimum between 30 and 35° N. The latitudinal variation in seed set showed the opposite trends in both species at high latitudes. Seed nitrogen concentration decreased with latitude in both species, while seed phosphorus concentration declined only in P. australis. We also identified that temperature-dependent climatic variables were more important than soil properties in affecting the latitudinal variations of seed traits for both species, especially for S. alterniflora. Based on the results, we predict that the greater fecundity of S. alterniflora populations poses an increasing threat to P. australis at the higher latitudes as temperature rises due to climate change.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 3","pages":"49"},"PeriodicalIF":2.3,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573528","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

The trade-off between photosynthetic rate and thallus moisture-demand explains lichen habitat association with the temperate rainforest. 光合速率和菌体水分需求之间的权衡解释了地衣栖息地与温带雨林的关系。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-03-05 DOI: 10.1007/s00442-025-05687-3

Amaris Ormond, Christopher J Ellis, Claudia Colesie

{"title":"The trade-off between photosynthetic rate and thallus moisture-demand explains lichen habitat association with the temperate rainforest.","authors":"Amaris Ormond, Christopher J Ellis, Claudia Colesie","doi":"10.1007/s00442-025-05687-3","DOIUrl":"10.1007/s00442-025-05687-3","url":null,"abstract":"Temperate rainforests are globally rare, covering less than 1% of the Earth's surface, with 15% of their suitable climate space located in Europe. These ecosystems are uniquely defined by diverse cryptogamic species, particularly epiphytic lichens, which play crucial roles in forest biodiversity, trophic interactions, and biogeochemical processes. However, the ecophysiology of temperate rainforest lichens, with the potential to explain their regional to local distribution, their primary productivity, growth rates and biomass accumulation, remains under researched. This study asked whether the coexistence of morphologically different species within Scotland's temperate rainforest is driven by adaptation and subsequent species-sorting into contrasting microclimatic moisture environments. We examined seven species, analysing their biogeographic distributions and physiological responses to controlled moisture and light gradients to understand their degree of association with the temperate rainforest habitat. Our results indicated that species with the strongest temperate rainforest association had higher thallus water requirements (OptWC, MinWC and MaxWC) to achieve maximal photosynthesis (MaxNP) and that these appeared mediated by morphological traits. We found that, when morphological traits relating to water capture and retention, including layers of rhizine and tomentum, are linked to physiological optima, they can begin to explain how species across a spectrum of morphologies are differentially adapted or acclimated and associated to different degrees with the temperate rainforest climate. These findings also underscore the significance of ecophysiological knowledge for predicting the impacts of climate change on temperate rainforest biodiversity, since species' microhabitat responses will be pivotal in understanding broader ecological shifts.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 3","pages":"48"},"PeriodicalIF":2.3,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11882653/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567029","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