Page 20 of 3820 Results 191 - 200 of 38191
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
38001
Ballová Z., Pekárik L., Píš V. & Šibík J. (2019): How much do ecosystem engineers contribute to landscape evolution? A case study on Tatra marmots, Catena, 182: 104121

Important influences of burrowing animals on ecosystems are reported from several environments. However, the impact of burrowing on alpine meadows has only been poorly studied. The largest and most widespread burrowing animals living in an alpine region are marmots. We tried to answer the following questions: Do marmots cause structural and compositional changes in alpine plant communities? Do marmots have a significant effect on soil properties? Do vegetation types differ according to their dependency … URL EN Read more... 

38000
Wang B., Duan Y.X., Wang W.F., Liu Z.Q., Li X.J., Liu Y., Li S.B. & Xi W. (2019): Greenhouse gas fluxes at different growth stages of biological soil crusts in eastern Hobq desert, China, Ying Yong Sheng Tai Xue Bao [The Journal of Applied Ecology], 30(3): 857-866

We analyzed greenhouse gas fluxes at the different growth stages of algae and lichen crusts in fixed sand with mobile dune as control in the eastern Hobq Desert, China, using the spatio-temporal substitution method. We explored the correlation of these fluxes with environmental factors and with biological soil crust growth. The results showed that variation of CO2 fluxes followed the order: lichen crust (128.5 mg·m-2·h-1) > algae crust (70.2 mg·m-2·h-1) > mobile dune (48.2 mg·m-2·h-1). CH4 … URL EN Read more... 

37999
Noreika N., Helm A., Öpik M., Jairus T., Vasar M., Reier Ü., Kook E., Riibak K., Kasari L., Tullus H., Tullus T., Lutter R., Oja E., Saag A., Randlane T. & Pärtel M. (2019): Forest biomass, soil and biodiversity relationships originate from biogeographic affinity and direct ecological effects, Oikos, 128(11): 1653-1665

Ecosystem biomass, soil conditions and the diversity of different taxa are often interrelated. These relationships could originate from biogeographic affinity (varying species pools) or from direct ecological effects within local communities. Disentangling regional and local causes is challenging as the former might mask the latter in natural ecosystems with varying habitat conditions. However, when the species pool contribution is considered in statistics, local ecological effects might be detected. … URL EN Read more... 

37998
Güvenç Ş., Öztürk Ş. & Oran S. (2019): Epiphytic lichen diversity on Quercus pubescens Willd. in Bursa province, Biological Diversity and Conservation, 12(2): 51-56

The aim of this study is determined to compare the epiphytic lichen diversity of Quercus pubescens found in the center of the city or village, and away from the center. The ordination graph based on the settlements of species diversity located in the center of the city or village and away from the center were obtained with a detrended correspondence analysis (DCA). Differences in the species diversity and composition of the epiphytic lichens on Q. pubescens in the center of the city or village, and … URL EN Read more... 

37997
Daimari R., Bhuyan P., Hussain S., Nayaka S., Mazumder M.A.J. & Hoque R.R. (2020): Biomonitoring by epiphytic lichen species—Pyxine cocoes (Sw.) Nyl.: Understanding characteristics of trace metal in ambient air of different land uses in mid-Brahmaputra Valley, Environmental Monitoring and Assessment, 192(1): 37

This study presents a comparative assessment of the trace metal air pollutants of urban, peri-urban, and rural areas of the Brahmaputra Valley plain in the Eastern Himalayan region using biomonitoring of Pyxine cocoes. In situ collection of the thalli growing on Bombax sp. from representative locations was done, which was analyzed for Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, and Zn using ICP-OES. The metals, viz. Cd, Cr, Ni, Pb, and Zn, were highly enriched, indicating anthropogenic influences. … URL EN Read more... 

37996
Havrilla C., Leslie A.D., Di Biase J.L. & Barger N.N. (2020): Biocrusts are associated with increased plant biomass and nutrition at seedling stage independently of root-associated fungal colonization, Plant and Soil, 446: 331-342

Aims: Plant-soil interactions are important drivers of plant productivity and community structure. Biocrusts – soil surface-dwelling biotic communities comprised of cyanobacteria, fungi, bryophytes, and/or lichens - are widespread in drylands globally. Biocrusts are described as “mantles of fertility” and have been shown to have facilitative, but species-specific effects on plant productivity. Yet, patterns and mechanisms underlying biocrust facilitation of plant productivity remain unclear. … URL EN Read more... 

37995
Ganazhapa-Plasencia M., Yangua-Solano E., Ruiz L., Andrade-Hidalgo R. & Benítez Á. (2025): Epiphytes as environmental bioindicators in forest remnants of the Pisaca Reserve: Preserving the unique pre-Inca artificial wetland of Paltas, Ecuador, Forests, 16(4): 628 [13 p.]

Epiphytic organisms are characteristic elements of the Andean dry forest, playing a crucial role in ecosystem diversity and functionality, but they are threatened by deforestation-related factors. The diversity of epiphytic lichens and bryophytes was recorded in the Pisaca Reserve, which has an artificial pond locally known as “Laguna Pisaca”, serving as a critical micro-watershed. This pond provides water services to the city of Catacocha, motivating local communities to protect its biodiversity. … URL EN Read more... 

37994
Paillet Y., Debaive N., Archaux F., Cateau E., Gilg O. & Guilbert E. (2019): Nothing else matters? Tree diameter and living status have more effects than biogeoclimatic context on microhabitat number and occurrence: An analysis in French forest reserves, PLoS ONE, 14(5): e0216500

Managing forests to preserve biodiversity requires a good knowledge not only of the factors driving its dynamics but also of the structural elements that actually support biodiversity. Tree-related microhabitats (e.g. cavities, cracks, conks of fungi) are tree-borne features that are reputed to support specific biodiversity for at least a part of species’ life cycles. While several studies have analysed the drivers of microhabitats number and occurrence at the tree scale, they remain limited to … URL EN Read more... 

37993
Covy N., Benedict L. & Keeley W.H. (2019): Rock climbing activity and physical habitat attributes impact avian community diversity in cliff environments, PLoS ONE, 14(1): e0209557

As the sport of outdoor rock climbing rapidly grows, there is increasing pressure to understand how it can affect communities of organisms in cliff habitats. To that end, we surveyed 32 cliff sites in Boulder, Colorado, USA, and assessed the relative roles of human recreation and natural habitat features as drivers of bird diversity and activity. We detected only native avian species during our observations. Whereas avian abundance was not affected by climbing, avian species diversity and community … URL EN Read more... 

37992
Ji X., Abakumov E., Polyako V., Xie X. & Dongyang W. (2019): The ecological impact of mineral exploitation in the Russian Arctic: A field-scale study of polycyclic aromatic hydrocarbons (PAHs) in permafrost-affected soils and lichens of the Yamal-Nenets Autonomous Region, Environmental Pollution, 255(1): 113239

Forty soil and lichen samples and sixteen soil horizon samples were collected in the mining and surrounding areas of the Yamal-Nenets autonomous region (Russian Arctic). The positive matrix factorization (PMF) model was used for the source identification of PAHs. The results of the source identification showed that the mining activity was the major source of PAHs in the area, and that the mining influenced the surrounding natural area. The 5+6-ring PAHs were most abundant in the mining area. The … URL EN Read more... 

Page 20 of 3820 Results 191 - 200 of 38191