Page 3637 of 3661 Results 36361 - 36370 of 36607
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
36361
Meysurova A.F., Notov A.A., Pungin A.V. & Skrypnik L.N. (2024): Application of optical spectroscopy for the analysis of physiological characteristics and elemental composition of lichens of the genus Hypogymnia with different degrees of anthropotolerance - Journal of Applied Spectroscopy, 91(1): 64–75

[Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 91, No. 1, pp. 74–86] The main physiological and biochemical characteristics and elemental composition of three lichen species of the genus Hypogymnia (Nyl.) Nyl. in one habitat were studied using spectroscopic methods. The model species were placed in the following order of decreasing degree of anthropotolerance: H. physodes (L.) Nyl. → H. tubulosa (Schaer.) Hav. → H. vittata (Ach.) Parrique. The contents of chlorophylls a and b, phenolic … URL EndNote PDF Read more... 

36362
Rautiainen M., Kuusinen N. & Majasalmi T. (2024): Remote sensing and spectroscopy of lichens - Ecology and Evolution, 14: e11110 [16 p.]

Lichens are combinations of two symbiotic organisms, a green alga or cyanobacterium and a fungus. They grow in nearly all terrestrial ecosystems and survive in habitats, which are very dry or cold, or too poor in nutrients to maintain vegetation growth. Because lichens grow on visible surfaces and exhibit spectral properties, which are clearly different from, for example, vegetation, it is possible to distinguish them in remote sensing data. In this first systematic review article on remote sensing … URL EndNote PDF Read more... 

36363
Fetzer J., Moiseev P., Frossard E., Kaiser K., Mayer M., Gavazov K. & Hagedorn F. (2024): Plant–soil interactions alter nitrogen and phosphorus dynamics in an advancing subarctic treeline - Global Change Biology, 30: e17200 [18 p.]

Treelines advance due to climate warming. The impacts of this vegetation shift on plant–soil nutrient cycling are still uncertain, yet highly relevant as nutrient availability stimulates tree growth. Here, we investigated nitrogen (N) and phosphorus (P) in plant and soil pools along two tundra–forest transects on Kola Peninsula, Russia, with a documented elevation shift of birch-dominated treeline by 70 m during the last 50 years. Results show that although total N and P stocks in the soil–plant … URL EndNote PDF Read more... 

36364
Nikolić N., Zotz G. & Bader M.Y. (2024): Modelling the carbon balance in bryophytes and lichens: Presentation of PoiCarb 1.0, a new model for explaining distribution patterns and predicting climate‐change effects - American Journal of Botany, 111: e16266 [21 p.]

Premise: Bryophytes and lichens have important functional roles in many ecosystems. Insight into their CO2‐exchange responses to climatic conditions is essential for understanding current and predicting future productivity and biomass patterns, but responses are hard to quantify at time scales beyond instantaneous measurements. We present PoiCarb 1.0, a model to study how CO2‐exchange rates of these poikilohydric organisms change through time as a function of weather conditions. Methods: … URL EndNote PDF Read more... 

36365
Berlinches de Gea A., Verdú M., Villar-dePablo M. & Pérez-Ortega S. (2024): The combined effects of habitat fragmentation and life history traits on specialisation in lichen symbioses - Journal of Ecology, 112: 200–216

Interactions between organisms are determined by life-history traits. Ecological strategies regarding species specialisation range from generalist to highly specialised relationships. Although it is expected that habitat fragmentation's effect on species abundance and survival depends on their degree of specialisation and life-history traits, few studies have delved into the interplay between interaction specialisation, life-history traits and habitat fragmentation.Here, we investigate the combined … URL EndNote PDF Read more... 

36366
Pérez-Ortega S., Verdú M., Garrido-Benavent I., Rabasa S., Green T.G.A., Sancho L.G. & de los Ríos A. (2023): Invariant properties of mycobiont-photobiont networks in Antarctic lichens - Global Ecology and Biogeography, 32: 2033–2046

Aim: Lichens are often regarded as paradigms of mutualistic relationships. However, it is still poorly known how lichen-forming fungi and their photosynthetic partners interact at a community scale. We explored the structure of fungus-alga networks of interactions in lichen communities along a latitudinal transect in continental Antarctica. We expect these interactions to be highly specialized and, consequently, networks with low nestedness degree and high modularity. Location: Transantarctic … URL EndNote PDF Read more... 

36367
Bjerke J.W., Gwynn-Jones D. & Callaghan T.V. (2005): Effects of enhanced UV-B radiation in the field on the concentration of phenolics and chlorophyll fluorescence in two boreal and arctic–alpine lichens - Environmental and Experimental Botany, 53(2): 139-149

Lichens constitute a prominent part of the vegetation at high latitudes and altitudes, but the effects of UV-B radiation on these symbiotic organisms are not well known. In a northern boreal site (Abisko, northern Sweden), the usnic acid-producing lichens Flavocetraria nivalis and Nephroma arcticum were exposed to enhanced UV-B radiation, corresponding to 25% ozone depletion, for two and one growing seasons, respectively. They were compared with lichens grown under ambient UV-B and harvested fresh … URL EndNote PDF Read more... 

36368
Paquette H.A., McMullin R.T. & Wiersma Y.F. (2024): The importance of taxonomy for determining species distribution: a case study using the disjunct lichen Brodoa oroarctica - Botany, 102(1): 10-18

Species-focused conservation requires a thorough understanding of species’ distributions. Delineating a species’ distribution requires taxonomic knowledge and adequate occurrence data. For plants and fungi, herbaria represent a valuable source of large-scale occurrence data. Advances in digital technology mean that data from many herbarium collections worldwide are now easily accessible. However, species concepts can change over time requiring herbarium records to be re-examined and databases … URL EndNote PDF Read more... 

36369
Löffler J. & Pape R. (2020): Thermal niche predictors of alpine plant species - Ecology, 101(1): e02891

Within the context of species distribution models, scrutiny arises from the choice of meaningful environmental predictors. Thermal conditions are not the sole driver, but are the most widely acknowledged abiotic driver of plant life within alpine ecosystems. We linked long-term measurements of direct, plant-relevant, near-surface temperatures to plant species frequency. Across 47 sites located along environmental gradients within the Scandinavian mountain chain, the thermal preferences of 26 focal … URL EndNote PDF Read more... 

36370
Rodionova A.A., Timofeeva E.A., Himelbrant D.E., Stepanchikova I.S., Zueva A.S., Tsurykau A.G., Frolov I.V. & Chesnokov S.V. (2024): The first survey of the lichen diversity of Seskar Island (Gulf of Finland, Leningrad Region) - Новости систематики низших растений [Novosti sistematiki nizshikh rastenii] / Novitates systematicae plantarum non vascularium, 58(1): L1–L25

The revealed lichen diversity of Seskar Island has a total of 292 species, including 263 lichenized, 20 lichenicolous, and nine non-lichenized saprobic fungi. Stigmidium microcarpum is new to European Russia, Caloplaca alcarum, Cryptodiscus muriformis, C. pini, and C. tabularum are new to North-Western European Russia; Lecidella subviridis and Pyrenidium actinellum are new to the Le­ningrad Region. The most interesting result of the investigation is the discovery of the single modern population … URL EndNote PDF Read more... 

Page 3637 of 3661 Results 36361 - 36370 of 36607