Distributions and abundances of larval salamanders (Ambystoma macrodactylum) and large copepods (Diaptomus sp.) in relation to introduced trout and abiotic factors in mountain lakes of North Cascades National Park Service Complex

2002 ◽  
Keyword(s):  
National Park ◽  
National Park Service ◽  
Abiotic Factors ◽  
Mountain Lakes ◽  
North Cascades ◽  
Ambystoma Macrodactylum ◽  
Park Service

Forest types of the North Cascades National Park Service Complex

1987 ◽  
Vol 65 (7) ◽  
pp. 1520-1530 ◽  
Author(s):  
James K. Agee ◽  
Jane Kertis
Keyword(s):  
Ponderosa Pine ◽  
National Park ◽  
Forest Cover ◽  
National Park Service ◽  
Silver Fir ◽  
North Cascades ◽  
Cover Type ◽  
The North ◽  
Park Service ◽  
Forest Cover Types

A forest cover type classification was developed for the North Cascades National Park Service Complex in north central Washington, U.S.A., based on 425 reconnaissance-level plots. Detrended correspondence analysis (DECORANA) was used to ordinate the data. Temperature and available moisture were identified as primary environmental gradients. Two-way indicator species analysis (TWINSPAN) was used to classify the data, resulting in eight forest cover types: ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii), subalpine fir (Abies lasiocarpa), whitebark pine – subalpine larch (Pinus albicaulis – Larix lyallii), mountain hemlock (Tsuga mertensiana), Pacific silver fir (Abies amabilis), western hemlock (Tsuga heterophylla), and hardwood forest. The coniferous forest cover types, with the exception of ponderosa pine, were defined to have open and closed canopy components; each cover type includes a variety of plant associations. The cover types were integrated into a geographic information system used to create a cover type map that was 85% accurate. The forest cover types of the park complex are unique not so much for within-community diversity as for the close juxtaposition of cover types with interior and coastal climatic influences.

scholarly journals Whitebark Pine in the Northern Cascades: Tracking the Effects of Blister Rust on Population Health in North Cascades National Park Service Complex and Mount Rainier National Park

2018 ◽  
Author(s):  
Regina Rochefort ◽  
Shay Howlin ◽  
Lacey Jeroue ◽  
John Boetsch ◽  
Lise Grace
Keyword(s):  
National Park ◽  
National Park Service ◽  
Mortality Rates ◽  
Whitebark Pine ◽  
North Cascades ◽  
Blister Rust ◽  
Mountain Pine ◽  
Mount Rainier ◽  
Mount Rainier National Park ◽  
Park Service

Whitebark pine (Pinus albicaulis Engelm.) is a key component of subalpine and alpine ecosystems in the northern Cascades. The species survival is threatened by white pine blister rust, mountain pine beetles, fire exclusion, and climate change. Trees were monitored in permanent plots in two national parks three times between 2004 and 2016. The proportion of trees showing signs of blister rust infection increased in North Cascades National Park Service Complex from 32% in 2004 to 51% in 2016 and from 18% to 38% in Mount Rainier National Park. Mortality increased from 7% to 21% in North Cascades National Park Service Complex and 38% to 44% in Mount Rainier National Park. Annual mortality rates were calculated for three time periods: 2004-2009, 2009-2015/2016, and 2004-2015/2016. Mortality rates, annualized across the entire study period, were 1.47% in Mount Rainier National Park and 2.27% in North Cascades National Park Service Complex; these rates decreased between the first time period and the second, which could reflect blister rust resistance. Signs of mountain pine beetle were rare and limited to a few trees in individual plots. Although reproductive trees were found in most stands, densities were low and regeneration was dominated by subalpine fir.

scholarly journals Do Dams Also Stop Frogs? Assessing Population Connectivity of Coastal Tailed Frogs (Ascaphus truei) in the North Cascades National Park Service Complex

2016 ◽  
Author(s):  
Jared A. Grummer ◽  
Adam D. Leaché
Keyword(s):  
National Park ◽  
National Park Service ◽  
De Novo ◽  
A Priori ◽  
Population Connectivity ◽  
North Cascades ◽  
Ascaphus Truei ◽  
The North ◽  
Park Service ◽  
Skagit River

AbstractWe investigated the effects of three hydroelectric dams and their associated lakes on the population structure and connectivity of the coastal tailed frog, Ascaphus truei, in the North Cascades National Park Service Complex. Three dams were erected on the Skagit River in northern-central Washington state between 1924 and 1953 and subsequently changed the natural shape and movement of the Skagit River and its tributaries. We collected 183 individuals from 13 tributaries and generated a dataset of >2,500 loci (unlinked SNPs) using double digestion restriction site-associated DNA sequencing (ddRADseq). An analysis of molecular variance (AMOVA) identified ~99% of the genetic variation within groups, and the remaining variation among groups separated by dams, or the Skagit River. All populations exhibited low FST values with a maximum of 0.03474. A ‘de novo’ discriminant analysis of principal components revealed two populations with no geographic cohesiveness. However, testing groups that were partitioned a priori by the dams revealed distinctiveness of populations down-river of the lowest dam. Coalescent-based analyses of recent migration suggest that up to 17.3% of each population is composed of migrants from other populations, and an estimation of effective migration rates revealed high levels of migration heterogeneity and population connectivity in this area. Our results suggest that although the populations down-river from the lowest dam are distinguishable, a high level of A. truei population connectivity exists throughout the North Cascades National Park Service Complex.

Philanthropy and the National Park Service

2013 ◽  
Author(s):  
Jacqueline Vaughn ◽  
Hanna J. Cortner
Keyword(s):  
National Park ◽  
National Park Service ◽  
Park Service

A Question Of Relevance

2020 ◽  
Vol 42 (2) ◽  
pp. 101-123
Author(s):  
Michael A. Capps
Keyword(s):  
National Park ◽  
National Park Service ◽  
Interpretive Approach ◽  
Park Service ◽  
Educational Component

Lincoln Boyhood National Memorial is an example of one memorial site that has successfully managed to retain relevance for nearly one hundred years by adapting to changes in scholarship and the expectations of its visitors. Initially created as a purely commemorative site, it has evolved into one where visitors can actively engage with the Lincoln story. By embracing an interpretive approach to managing the site, the National Park Service has been able to add an educational component to the experience of visiting the memorial that complements its commemorative nature.

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