scholarly journals Seasonal habitat use and movements of woodland caribou in the Omineca Mountains, north central British Columbia, 1991-1993

Rangifer ◽  
1996 ◽  
Vol 16 (4) ◽  
pp. 365 ◽  
Author(s):  
Mari D. Wood
Keyword(s):  
Habitat Use ◽  
Radio Telemetry ◽  
Mountain Range ◽  
Woodland Caribou ◽  
Heavy Snowfall ◽  
North Central ◽  
Subalpine Fir ◽  
Mountain Ranges ◽  
Engelmann Spruce ◽  
Seasonal Habitat Use

From 1991 to 1993, 30 woodland caribou were captured and fitted with radio-collars west of the Williston Reservoir in north central B.C. Monthly radio-telemetry location flights revealed that caribou in the Northern Area, characterized by a complex of mountain ranges, moved greater distances to calving areas than did those in the South, where only one major mountain range exists. In the year of record heavy snowfall for the area, all collared caribou wintered on windswept alpine slopes, while during the below average snowfall year, many caribou remained in forested habitats. In winter, caribou were found to forage on terrestrial lichens in both lowland lodgepole pine flats and on windswept alpine slopes, and on arboreal lichens in upper elevation Engelmann spruce and subalpine fir forests. There are at least 600-700 caribou in the Omineca Mountains.

scholarly journals Identifying Twentieth Century Dude Ranches in the Teton Valley Region

2008 ◽  
Vol 31 ◽  
pp. 133-134
Author(s):  
Amanda Rees
Keyword(s):  
Nineteenth Century ◽  
National Park ◽  
American West ◽  
Small Scale ◽  
Late Nineteenth Century ◽  
Mountain Range ◽  
North Central ◽  
Mountain Ranges ◽  
Park Service ◽  
Gate Region

The states of Wyoming, Montana, and to a lesser extent Colorado are commonly understood as the industrial heartland of U.S. dude ranching in the twentieth and twenty-first centuries (Borne 1983). Though there were earlier small scale efforts to host easterners on ranches in the West from the 1850s onwards, dude ranching is commonly understood to have begun in 1879 in Medora, North Dakota by the Eaton Brothers (Borne 1983, Rothman 1998). Dude ranching--when outsiders pay to stay on a ranch ­ usually demonstrates most/if not all of the following six characteristics: 1). it embraces of the West's nineteenth century agricultural heritage; 2). it celebrates wild, preserved landscapes; 3). it provides an economic vehicle for ranchers to maintain their cultural heritage, and/or investors and managers to have a piece of the American West; 4). it demonstrates a distinct dude ranch aesthetic (architecture, clothing, food, music, stories, education and landscape); 5). it includes horse­related activities; and 6). it provides a safe and contained regional experience transforming the traveler from "mere' tourist status to that of a liminal space in­between outsider and insider. Since the late nineteenth century Wyoming has developed five centers of dude ranch activity located primarily near mountain ranges, within or close to public lands (National Park Service (NPS) or Forest Service (FS)): 1) Medicine Bow Mountain Range in southeastern Wyoming; 2) Big Horn Mountain Range (eastern and western slopes) in north-central Wyoming; 3) eastern gate region of Yellowstone National Park, northwest Wyoming; 4) Wind River Mountain Range (eastern and western slopes), northwestern Wyoming; and 5) Teton Mountain Range in northwestern Wyoming. My work seeks to establish the extent of dude ranching in Teton Valley.

Short-term impacts of partial cutting on lichen retention and canopy microclimate in an Engelmann spruce – subalpine fir forest in north-central British Columbia

2003 ◽  
Vol 33 (5) ◽  
pp. 830-841 ◽  
Author(s):  
Darwyn Coxson ◽  
Susan Stevenson ◽  
Jocelyn Campbell
Keyword(s):  
British Columbia ◽  
Sampling Techniques ◽  
Abies Lasiocarpa ◽  
Short Term ◽  
Partial Cutting ◽  
North Central ◽  
Subalpine Fir ◽  
Single Tree ◽  
Engelmann Spruce ◽  
Single Tree Selection

The retention of canopy lichens (Alectoria, Bryoria, and foliose) in group selection (GS) and single-tree selection (STS) partial cuts (30% removal) was studied within a subalpine spruce–fir forest (Picea englemannii Parry ex Engelm. – Abies lasiocarpa (Hook.) Nutt.) in north-central British Columbia. Baseline canopy lichen loading (preharvest and immediate postharvest) was compared with lichen loading 2 years after harvesting, using both ground- and canopy-based sampling techniques. Additionally, canopy microclimate was compared between GS and adjacent stand areas with no harvest treatment (NT). Partial cutting did not have a significant effect on lichen loading in residual trees, although a trend of declining lichen abundance was observed in each of the GS, STS, and NT areas. Partitioning of lichen abundance data showed significant postharvest declines for upper canopy STS Bryoria and smaller, but significant, changes in foliose lichen abundance in the NT and STS areas. No significant changes in canopy microclimate were observed between treatments, with the exception of south-facing aspects in GS trees, which showed reduced duration of lichen hydration. Taken together, these factors suggest that although the placement of Bryoria in residual trees may shift towards lower canopy exposures, partial-cut harvest treatments can maintain short-term lichen loading and associated ecosystem values (e.g., caribou forage) in subalpine spruce–fir stands.

Throughfall chemistry in an Engelmann spruce–subalpine fir forest in north central Colorado

1993 ◽  
Vol 23 (4) ◽  
pp. 738-742 ◽  
Author(s):  
M.A. Arthur ◽  
T.J. Fahey
Keyword(s):  
Dry Deposition ◽  
Forest Type ◽  
Fold Increase ◽  
Bulk Precipitation ◽  
Charge Balance ◽  
North Central ◽  
Subalpine Fir ◽  
Engelmann Spruce ◽  
Urban Corridor ◽  
Large Charge

Bulk precipitation and throughfall quantity and quality were measured in an old-growth Engelmann spruce (Piceaengelmannii Parry)–subalpine fir (Abieslasiocarpa (Hook.) Nutt.) forest in north central Colorado, a forest type for which little nutrient-cycling information exists. Higher concentrations of nutrient cations (Ca, Mg, Na, and K) were found in throughfall than in bulk precipitation, indicating canopy leaching of nutrients and dry deposition onto the canopy followed by wash-off. Ammonium was retained by the canopy. Concentrations of anions (NO3, SO4, and ortho-P) were similar in throughfall and bulk precipitation. Large additions of organic acids to throughfall from foliage were inferred from a 5-fold increase in dissolved organic carbon and a large charge-balance deficit (23%) in throughfall relative to bulk precipitation (8%). Canopy evaporation was estimated at 27%, accounting for a 37% increase in the concentration of dissolved substances in throughfall. Dry deposition, estimated using two methods, resulted in large additions of most cation nutrients and N, but not SO4. Ratios of NO3 to SO4 in wet fall (0.8) and bulk precipitation (1.1) were high at this site compared with other mountainous sites in the region. We suggest that the relatively high NO3/SO4 ratio results from proximity to NOx sources in the urban corridor to the east.

Effects of harvesting on fine root biomass and decomposition in an Engelmann spruce – subalpine fir forest

2003 ◽  
Vol 33 (5) ◽  
pp. 847-853 ◽  
Author(s):  
Sylvia E Welke ◽  
Graeme D Hope ◽  
Gary A Hunt
Keyword(s):  
Root Biomass ◽  
Fine Root ◽  
Timber Harvesting ◽  
High Elevation ◽  
Fine Root Biomass ◽  
Nutrient Concentrations ◽  
Root Dynamics ◽  
Subalpine Fir ◽  
Root Longevity ◽  
Engelmann Spruce

The effect of timber harvesting on the biomass, nutrient standing crop, and decomposition of fine roots (<2 mm) was studied in a high elevation, Engelmann spruce (Picea engelmannii Parry ex Engelm.) – subalpine fir (Abies lasiocarpa (Hook.) Nutt.) forest. Root dynamics were compared in openings of different sizes. The sequential core method was used to collect fine root samples over 4 years. Differences in fine root biomass between opening sizes were most significant for the active fine root portion and were most pronounced in the fall compared with the spring. Active fine root biomass was significantly lower in the 10-ha clearcuts (164 kg/ha) compared with control plots (275 kg/ha). Furthermore, active fine root biomass was often lower in the 1.0-ha opening than in the 0.1-ha and control plots. A similar trend was established for inactive fine root biomass, although this was not consistent over sampling years. Nutrient concentrations of K, but no other elements, were higher in control plots. Nutrient standing crops, however, followed trends observed in fine root biomass. In the 10-ha clearcuts, the largest changes in fine root biomass occurred at the edge of the opening. The findings suggest that small (<10 ha) cutblocks may maintain greater fine root longevity.

scholarly journals Feral horse seasonal habitat use on a coastal barrier spit

2004 ◽  
Vol 57 (3) ◽  
pp. 253-258
Author(s):  
RICHARD D. RHEINHARDT ◽  
MARTHA CRAIG RHEINHARDT
Keyword(s):  
Habitat Use ◽  
Coastal Barrier ◽  
Feral Horse ◽  
Seasonal Habitat Use

Seasonal Habitat Use of Agoutis (Dasyprocta azarae) is Driven by the PalmAttalea phaleratain Brazilian Pantanal

Biotropica ◽  
2013 ◽  
Vol 45 (3) ◽  
pp. 380-385 ◽  
Author(s):  
Bruno Cid ◽  
Luiz Gustavo R. Oliveira-Santos ◽  
Guilherme Mourão
Keyword(s):  
Habitat Use ◽  
Brazilian Pantanal ◽  
Seasonal Habitat Use

scholarly journals Feral Horse Seasonal Habitat Use on a Coastal Barrier Spit

2004 ◽  
Vol 57 (3) ◽  
pp. 253 ◽  
Author(s):  
Richard D. Rheinhardt ◽  
Martha Craig Rheinhardt
Keyword(s):  
Habitat Use ◽  
Coastal Barrier ◽  
Feral Horse ◽  
Seasonal Habitat Use

scholarly journals [Re]covering Jeddah’s Wadis – Building the City’s Resilience through Green Infrastructure

2018 ◽  
Vol 11 (4) ◽  
pp. 228
Author(s):  
Hanaa Motasim
Keyword(s):  
Green Infrastructure ◽  
Rain Water ◽  
Mountain Range ◽  
Water Drainage ◽  
Severe Damage ◽  
Mountain Ranges ◽  
Natural Flow ◽  
The Rich ◽  
The City ◽  
Green Corridors

Jeddah, Saudi Arabia’s largest coastal city, is positioned between two prominent natural features: the mountain range on its eastern side and the Red Sea on its west. The city faces many challenges central to which is storm water drainage. The natural drainage of the city through its pre-existing wadis, bringing down the rain water from the steep mountain ranges through the low inclining coastal plane and into the sea, has been interrupted in the last few decades by massive road infrastructural projects cutting through the city and interrupting the natural flow. The outcome of these interventions has been excessive flooding calamities, of which the ones in 2009 and 2011 were the most extreme, causing severe damage to infrastructure, property and lives.In light of climate change the intensity of flash floods is expected to increase, placing enormous stress on the city. To control the floods the city has pushed forward heavily engineered solutions, canalizing the rich network of wadis, almost 80 in number, into 4 major concrete channels that discharge the rain water accumulated in the mountains directly into the sea. This solution, which has been prohibitive in cost, has robbed the city of any potential of utilizing the precious supply of rain water. This paper explores the potential of recovering Jeddah’s wadis and creating green corridors across the city. As opposed to engineered solutions which address singular problematics, green infrastructures could provide numerous benefits to the city and the region as a whole.

Space fit for a king: spatial ecology of king cobras (Ophiophagus hannah) in Sakaerat Biosphere Reserve, Northeastern Thailand

2019 ◽  
Vol 40 (2) ◽  
pp. 163-178 ◽  
Author(s):  
Benjamin Michael Marshall ◽  
Colin Thomas Strine ◽  
Max Dolton Jones ◽  
Taksin Artchawakom ◽  
Ines Silva ◽  
...  
Keyword(s):  
Habitat Use ◽  
Breeding Season ◽  
Protected Area ◽  
Spatial Ecology ◽  
Radio Telemetry ◽  
Biosphere Reserve ◽  
Adult Males ◽  
Anthropogenic Pressures ◽  
Anthropogenic Landscapes ◽  
Ophiophagus Hannah

Abstract A species’ spatial ecology has direct implications for that species’ conservation. Far-ranging species may be more difficult to conserve because their movements increase their chances of encountering humans. The movements can take them out of protected areas, which is especially risky for species that are routinely persecuted. The king cobra (Ophiophagus hannah), a large venomous elapid, is subject to anthropogenic pressures, such as persecution and habitat loss. Here we present results from a study using radio telemetry to quantify movements and habitat use of nine king cobras in and around a protected area in Northeast Thailand. This study is the first investigation into the movements and habitat use of king cobras outside of the Western Ghats, India. On average, the tracked king cobra’s use areas of 493.42 ± 335.60 ha (95% fixed kernel), moving 183.24 ± 82.63 m per day. King cobras did not remain in intact forested area. Five of the individuals frequently used the human-dominated agricultural areas surrounding the protected area, appearing to make regular use of irrigation canals. Two adult males showed increases in movements during the breeding season. One male’s increased breeding season range caused him to venture beyond the protected area, shifting his habitat use from intact forests to scrub in human-dominated areas. King cobras’ large home range and willingness to use anthropogenic landscapes merits special consideration from conservation planners.

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