Results 71 to 80 of about 1,181,495 (342)

Grassland biomass dynamics along an altitudinal gradient in the Pampa [PDF]

open access: yesJournal of Range Management, 2000
Above and below-ground biomass and necromass dynamics were assessed for 3 grassland sites located at 550, 850, and 1,025 m elevation in Sierra de la Ventana range (38 degrees 1'S 62 degrees 2'W) in Argentina. The objective was to determine if differences existed in dry matter structure, mycorrhizae infection, net primary productivity (NPP) partitioning
Pérez, Carolina Alejandra   +1 more
openaire   +3 more sources

Divergent Responses of Bacterial Communities to Permafrost Degradation and Their Associations With Carbon Across Vertical Profiles

open access: yesAdvanced Science, EarlyView.
Bacterial α‐diversity decreases, but stochasticity and community stability increase across the 15 m‐depth vertical profiles and along the degraded gradient within the active layer. The abundance and interaction of core taxa mainly control community stability in the active and permafrost layers, respectively.
Shengyun Chen   +13 more
wiley   +1 more source

Modeling of Recharge Spatial Distribution in Karst Aquifers of Tangekhosh Watershed (Bushehr Province) Using the KARSTLOP Method [PDF]

open access: yesپژوهش‌های آبخیزداری, 2020
Assessing the spatial distribution of recharge in karstified terrains is very important for water management and protection, but it is a complex issue due to the complexity of natural conditions and water movement in karst areas, and the application of ...
Fatemeh Tavakolirad   +3 more
doaj   +1 more source

Parallel divergent adaptation along replicated altitudinal gradients in Alpine trout [PDF]

open access: yesBMC Evolutionary Biology, 2012
BMC Evolutionary Biology ...
Keller, Irene   +3 more
openaire   +5 more sources

Modern and Ancient Genomes Reveal Neolithic Paternal Expansions of Millet and Rice Farmers and Demic Diffusion from China into Mainland Southeast Asia

open access: yesAdvanced Science, EarlyView.
This study clarifies the genetic patterns of paternal lineages across East Asia and Mainland Southeast Asia. Han populations are relatively homogeneous, whereas southern ethnolinguistic minorities display regional structures. Shared Y‐chromosome lineages indicate Neolithic expansions and extensive north‐south gene flow, supporting demic diffusion ...
Yunhui Liu   +15 more
wiley   +1 more source

Lizard ecology along altitudinal gradients in Mediterranean mountains

open access: yes, 2020
Subprograma Estatal de Formación, en el marco del Plan de Investigación Científica y Técnica y de Innovación del Ministerio de Economía y Competividad (MINECO), inicialmente y después del Ministerio de Ciencia, Innovación y Universidades (MICIU) (SVP-2014-068620)
openaire   +3 more sources

Biodiversity and Altitudinal Variation of Dung Beetles (Scarabaeidae: Scarabaeinae) in the Oglán Alto Watershed, Ecuadorian Amazon

open access: yesActa Zoológica Lilloana
Dung beetles are considered a useful taxon to describe and to monitor spatial and temporal patterns of biodiversity. Tropical communities of dung beetles are usually diverse, abundant, and habitat specific; they respond quickly to many types of ...
Freddy Gallo   +6 more
doaj   +1 more source

Temporal and spatial variation in active layer depth in the McMurdo Sound Region, Antarctica [PDF]

open access: yes, 2010
A soil climate monitoring network, consisting of seven automated weather stations, was established between 1999 and 2003, ranging from Minna Bluff to Granite Harbour and from near sea level to about 1700m on the edge of the polar plateau.
Adlam, Leah Seree   +3 more
core   +2 more sources

Compartmentalized Homeostasis Drives High Bamboo Forest Productivity under Nutrient Imbalance

open access: yesAdvanced Science, EarlyView.
This study reveals how Moso bamboo achieves high productivity despite nutrient‐poor soils. It employs a unique strategy, maintaining strict nutrient balance in its leaves while using woody tissues as flexible storage reservoirs. This compartmentalized mechanism buffers the plant from soil phosphorus limitation and microbial competition, resolving the ...
Zhikang Wang   +13 more
wiley   +1 more source

Evaluation of Phenological Cycles and Thermal Time of Apple Crop Growing at Different Altitudinal Gradients in North Western Himalayas

open access: yesInternational Journal of Economic Plants, 2019
A field study was conducted in 2015 and 2016 to evaluate the phenological cycles and thermal time of apple crop of economic importance growing at different climate represented by varied altitudinal gradients in Himachal Pradesh, India.
Aditya   +3 more
doaj  

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