Nitrogen mineralization in high elevation forests of the Appalachians. I. Regional patterns in southern spruce-fir forests

1989 ◽  
Vol 7 (2) ◽  
pp. 131-145 ◽  
Author(s):  
Russell H. Strader ◽  
Dan Binkley ◽  
Carol G. Wells
Keyword(s):  
Nitrogen Mineralization ◽  
High Elevation ◽  
Regional Patterns ◽  
High Elevation Forests

Lecidea hercynica, a new montane epiphytic lichen from Germany

2005 ◽  
Vol 37 (6) ◽  
pp. 485-489 ◽  
Author(s):  
Michaela SCHMULL ◽  
Markus HAUCK
Keyword(s):  
New Species ◽  
Picea Abies ◽  
High Elevation ◽  
Harz Mountains ◽  
Epiphytic Lichen ◽  
Taxonomic Treatment ◽  
High Elevation Forests ◽  
A New Species

Lecidea hercynica Hauck & Schmull is described as a new species from Germany. It is characterized by a poorly developed or bullate to verrucose, areolate thallus on whitened spots of the substratum, numerous plane to yellowish brown to black, convex apothecia with a persistent margin, Micarea type-like asci, and by the presence of atranorin and protocetraric acid. It does not belong to Lecidea s. str., but is provisionally placed in Lecidea s. lat. until a taxonomic treatment of the whole group has been carried out. Lecidea hercynica is widespread in high-elevation forests of Picea abies in the Harz Mountains, where it grows preferably on decorticated wood in open situations.

Revision of the Venezuelan spider genus Stenosfemuraia González-Sponga, with new generic and specific synonymies (Araneae, Pholcidae)

Zootaxa ◽  
2017 ◽  
Vol 4341 (4) ◽  
pp. 495
Author(s):  
BERNHARD A. HUBER ◽  
QUINTIN C. ARIAS
Keyword(s):  
Type Species ◽  
High Elevation ◽  
High Elevation Forests

The Venezuelan genus Stenosfemuraia González-Sponga, 1998 is revised, with redescriptions of its three named species: S. parva González-Sponga, 1998 (type species); S. cuadrata González-Sponga, 2005; and S. pilosa (González-Sponga, 2005) n. comb. The latter species was originally described as Codazziella pilosa, and six years later again as Chichiriviche costanero González-Sponga, 2011 (n. syn.). The monotypic genera Codazziella González-Sponga, 2005 and Chichiriviche González-Sponga, 2011 are thus newly synonymized with Stenosfemuraia. The genus appears restricted to the Cordillera de la Costa region where the spiders occupy near-ground microhabitats in medium to high elevation forests. 

scholarly journals Variability of Cloudiness over Mountain Terrain in the Western United States

2017 ◽  
Vol 18 (5) ◽  
pp. 1227-1245 ◽  
Author(s):  
Edwin Sumargo ◽  
Daniel R. Cayan
Keyword(s):  
United States ◽  
Large Scale ◽  
Spatial Scales ◽  
High Elevation ◽  
Empirical Orthogonal Functions ◽  
Western United States ◽  
Spatial And Temporal Variability ◽  
Regional Patterns ◽  
Cloud Albedo

Abstract This study investigates the spatial and temporal variability of cloudiness across mountain zones in the western United States. Daily average cloud albedo is derived from a 19-yr series (1996–2014) of half-hourly Geostationary Operational Environmental Satellite (GOES) images. During springtime when incident radiation is active in driving snowmelt–runoff processes, the magnitude of daily cloud variations can exceed 50% of long-term averages. Even when aggregated over 3-month periods, cloud albedo varies by ±10% of long-term averages in many locations. Rotated empirical orthogonal functions (REOFs) of daily cloud albedo anomalies over high-elevation regions of the western conterminous United States identify distinct regional patterns, wherein the first five REOFs account for ~67% of the total variance. REOF1 is centered over Northern California and Oregon and is pronounced between November and March. REOF2 is centered over the interior northwest and is accentuated between March and July. Each of the REOF/rotated principal components (RPC) modes associates with anomalous large-scale atmospheric circulation patterns and one or more large-scale teleconnection indices (Arctic Oscillation, Niño-3.4, and Pacific–North American), which helps to explain why anomalous cloudiness patterns take on regional spatial scales and contain substantial variability over seasonal time scales.

scholarly journals A Multiscale Productivity Assessment of High Andean Peatlands across the Chilean Altiplano Using 31 Years of Landsat Imagery

2019 ◽  
Vol 11 (24) ◽  
pp. 2955 ◽  
Author(s):  
Roberto O. Chávez ◽  
Duncan A. Christie ◽  
Matías Olea ◽  
Talia G. Anderson
Keyword(s):  
Landsat Imagery ◽  
High Elevation ◽  
Management Policy ◽  
Future Research ◽  
Regional Patterns ◽  
Unique Type ◽  
Study Region ◽  
The Sustainable Development ◽  
Productivity Dynamics ◽  
Productivity Assessment

The high Andean peatlands, locally known as “bofedales”, are a unique type of wetland distributed across the high-elevation South American Altiplano plateau. This extensive peatland network stores significant amounts of carbon, regulates local and regional hydrological cycles, supports habitats for a variety of plant and animal species, and has provided critical water and forage resources for the livestock of the indigenous Aymara communities for thousands of years. Nevertheless, little is known about the productivity dynamics of the high Andean peatlands, particularly in the drier western Altiplano region bordering the Atacama desert. Here, we provide the first digital peatland inventory and multiscale productivity assessment for the entire western Altiplano (63,705 km2) using 31 years of Landsat data (about 9000 scenes) and a non-parametric approach for estimating phenological metrics. We identified 5665 peatland units, covering an area of 510 km2, and evaluated the spatiotemporal productivity patterns at the regional, peatland polygon, and individual pixel scales. The regional assessment shows that the peatland areas and peatlands with higher productivity are concentrated towards the northern part of our study region, which is consistent with the Altiplano north–south aridity gradient. Regional patterns further reveal that the last seven years (2011–2017) have been the most productive period over the past three decades. While individual pixels show contrasting patterns of reductions and gains in local productivity during the most recent time period, most of the study area has experienced increases in annual productivity, supporting the regional results. Our novel database can be used not only to explore future research questions related to the social, biological, and hydrological influences on peatland productivity patterns, but also to provide technical support for the sustainable development of livestock practices and conservation and water management policy in the Altiplano region.

Description of two new species of Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) from the Western Ghats of Kerala, India

Zootaxa ◽  
2018 ◽  
Vol 4459 (1) ◽  
pp. 85 ◽  
Author(s):  
VIVEK PHILIP CYRIAC ◽  
ALEX JOHNY ◽  
P. K. UMESH ◽  
MUHAMED JAFER PALOT
Keyword(s):  
New Species ◽  
Western Ghats ◽  
Morphological Characters ◽  
High Elevation ◽  
High Mountain ◽  
Mountain Ranges ◽  
Two New Species ◽  
Southern Western Ghats ◽  
High Elevation Forests ◽  
The Western Ghats

Two new species of geckos of the genus Cnemaspis Strauch, 1887 are described from the southern Western Ghats of Kerala. Both species are medium to large sized Cnemaspis and can be differentiated from all other Indian congeners by a suite of distinct morphological characters. Both species are found in the high elevation forests of the two major massifs—       Anaimalai Hills and Agasthyamalai Hills and are presently known to have very restricted distributional ranges. The discovery of these novel species highlights the understudied diversity of reptiles in the high mountain ranges of the Western Ghats. 

Baird's tapir density in high elevation forests of the Talamanca region of Costa Rica

2012 ◽  
Vol 7 (4) ◽  
pp. 381-388 ◽  
Author(s):  
José F. GONZÁLEZ-MAYA ◽  
Jan SCHIPPER ◽  
Beth POLIDORO ◽  
Annelie HOEPKER ◽  
Diego ZÁRRATE-CHARRY ◽  
...  
Keyword(s):  
Costa Rica ◽  
High Elevation ◽  
High Elevation Forests
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