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Effects of Nesting Cormorants (Phalacrocorax carbo) on Soil Chemistry, Microbial Communities and Soil Fauna
Springer Science and Business Media LLC - Tập 18 - Trang 643-657 - 2015
Gundula S. Kolb, Cecilia Palmborg, Astrid R. Taylor, Erland Bååth, Peter A. Hambäck
Seabirds act as vectors transporting marine nutrients to land by feeding on fish while nesting and roosting on islands. By depositing large amounts of nutrient-rich guano on their nesting islands they strongly affect island soils, vegetation and consumers. However, few studies have investigated how nesting seabirds affect soil communities. In this study, we investigated how cormorant nesting colo...... hiện toàn bộ
Patterns of Spring/Summer Open-Water Metabolism Across Boreal Lakes
Springer Science and Business Media LLC - - 2020
Matthew J. Bogard, Nicolas F. St-Gelais, Dominic Vachon, Paul A. del Giorgio
Northern regions host the greatest density of surface water globally, but knowledge of lake metabolism in this vast yet remote landscape is limited. Here, we used an oxygen stable isotope approach to quantify patterns and drivers of surface layer metabolism in lakes throughout an approximately 106 km2 tract of boreal Canada. Ecosystem gross primary production (GPP) and respiration rates (R) were m...... hiện toàn bộ
Forest Management Impacts on Greenhouse Gas Fluxes from Riparian Soils Along Headwater Streams
Springer Science and Business Media LLC - Tập 24 - Trang 1810-1822 - 2021
Teresa K. Silverthorn, John S. Richardson
Increasing concentrations of atmospheric greenhouse gases (GHGs; CO2, CH4, N2O) cause climate change. Depending on the conditions, soils have the potential to store carbon or to be a source of GHGs to the atmosphere. Riparian soils in particular have high potential to store carbon, but also to be sources of CH4 and N2O. Headwater streams make up a large proportion of stream length in a drainage ne...... hiện toàn bộ
Initial Soil Organic Matter Content Influences the Storage and Turnover of Litter, Root and Soil Carbon in Grasslands
Springer Science and Business Media LLC - - 2018
Shan Xu, Ping Li, Emma J. Sayer, Beibei Zhang, Jing Wang, Chunlian Qiao, Ziyang Peng, Liwei Diao, Yonggang Chi, Weixing Liu, Lingli Liu
Grassland degradation is a worldwide problem that often leads to substantial loss of soil organic matter (SOM). To estimate the potential for carbon (C) accumulation in degraded grassland soils, we first need to understand how SOM content influences the transformation of plant C and its stabilization within the soil matrix. We conducted a greenhouse experiment using C3 soils with six levels of SOM...... hiện toàn bộ
Mất đi tiềm năng hỗ trợ giữa môi trường nước và môi trường trên cạn dọc theo vùng đồng bằng sông Missouri Dịch bởi AI
Springer Science and Business Media LLC - Tập 23 - Trang 111-123 - 2019
Jeff S. Wesner, David L. Swanson, Mark D. Dixon, Daniel A. Soluk, Danielle J. Quist, Lisa A. Yager, Jerry W. Warmbold, Erika Oddy, Tyler C. Seidel
Các vùng đồng bằng của những con sông lớn đã bị biến đổi nặng nề do sự phát triển ven sông và những điều chỉnh kênh, cả hai đều có thể loại bỏ các môi trường sống nông trong các vùng ngoài kênh. Tầm quan trọng của những môi trường sống này đối với các sinh vật thủy sinh như cá đã được nghiên cứu kỹ lưỡng. Tuy nhiên, việc mất đi môi trường sống ngoài kênh cũng loại bỏ các môi trường sống cho sự sản...... hiện toàn bộ
#sông Missouri #côn trùng thủy sinh #môi trường sống #sinh thái #đồng bằng #năng lượng #động vật ăn côn trùng ven sông
Tree Diversity, Initial Litter Quality, and Site Conditions Drive Early-Stage Fine-Root Decomposition in European Forests
Springer Science and Business Media LLC - Tập 25 - Trang 1493-1509 - 2021
Janna Wambsganss, Grégoire T. Freschet, Friderike Beyer, Jürgen Bauhus, Michael Scherer-Lorenzen
Decomposition of dead fine roots contributes significantly to nutrient cycling and soil organic matter stabilization. Most knowledge of tree fine-root decomposition stems from studies in monospecific stands or single-species litter, although most forests are mixed. Therefore, we assessed how tree species mixing affects fine-root litter mass loss and which role initial litter quality and environmen...... hiện toàn bộ
Contrasts Among Mycorrhizal Plant Guilds in Foliar Nitrogen Concentration and δ15N Along Productivity Gradients of a Boreal Forest
Springer Science and Business Media LLC - Tập 13 - Trang 108-117 - 2009
J. M. Kranabetter, W. H. MacKenzie
The distribution of plant species in boreal forest understories is hypothesized to reflect mycorrhizal guilds and associated adaptations for organic nitrogen (N) acquisition. In this study of a natural edaphic gradient, where supply rates of inorganic N increase with site productivity, we noted a decline in understory ectomycorrhizal, ericoid, and arbutoid plant communities on productive sites, in...... hiện toàn bộ
Herbivore Effects on Ecosystem Process Rates in a Low-Productive System
Springer Science and Business Media LLC - - 2019
Maria Tuomi, Sari Stark, Katrine S. Hoset, Maria Väisänen, Lauri Oksanen, Francisco Javier Ancin‐Murguzur, Hanna Tuomisto, Jonas Dahlgren, Kari Anne Bråthen
The Effect of the Foresummer Drought on Carbon Exchange in Subalpine Meadows
Springer Science and Business Media LLC - Tập 18 - Trang 533-545 - 2015
Lindsey L. Sloat, Amanda N. Henderson, Christine Lamanna, Brian J. Enquist
Climate in subalpine meadows of the Rocky Mountains can be characterized by an early (foresummer) drought that occurs after snowmelt (May) and lasts until the start of the summer monsoon season (July). Climate change models predict an increase in the length and severity of this dry period due to earlier snowmelt dates, rising air temperatures, and shifts in the start and/or intensity of the North ...... hiện toàn bộ
Bistability, Spatial Interaction, and the Distribution of Tropical Forests and Savannas
Springer Science and Business Media LLC - Tập 19 - Trang 1080-1091 - 2016
Arie Staal, Stefan C. Dekker, Chi Xu, Egbert H. van Nes
Recent work has indicated that tropical forest and savanna can be alternative stable states under a range of climatic conditions. However, dynamical systems theory suggests that in case of strong spatial interactions between patches of forest and savanna, a boundary between both states is only possible at conditions in which forest and savanna are equally stable, called the ‘Maxwell point.’ Freque...... hiện toàn bộ
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