scholarly journals Bee species checklist of the San Francisco Peaks, Arizona

2020 ◽  
Vol 8 ◽  
Author(s):  
Lindsie McCabe ◽  
Paige Chesshire ◽  
David Smith ◽  
Atticus Wolf ◽  
Jason Gibbs ◽  
...  
Keyword(s):  
San Francisco ◽  
Elevation Gradient ◽  
Geographic Distance ◽  
Rocky Mountain ◽  
Sampling Effort ◽  
Northern Arizona ◽  
Vegetation Zones ◽  
Rocky Mountain Region ◽  
San Francisco Peaks ◽  
Bee Communities

Here we present a checklist of the bee species found on the C. Hart Merriam elevation gradient along the San Francisco Peaks in northern Arizona. Elevational gradients can serve as natural proxies for climate change, replacing time with space as they span multiple vegetation zones over a short geographic distance. Describing the distribution of bee species along this elevation gradient will help predict how bee communities might respond to changing climate. To address this, we initiated an inventory associated with ecological studies on pollinators that documented bees on the San Francisco Peaks. Sample sites spanned six life zones (vegetation zones) on the San Francisco Peaks from 2009 to 2019. We also include occurrence data from other studies, gathered by querying the Symbiota Collection of Arthropods Network (SCAN) portal covering the San Francisco Peaks region (hereafter referred to as “the Peaks”). Our checklist reports 359 bee species and morphospecies spanning five families and 46 genera that have been collected in the Peaks region. Prior to our concerted sampling effort there were records for 155 bee species, yet there has not been a complete list of bee species inhabiting the Peaks published to date. Over a 10-year period, we documented an additional 204 bee species inhabiting the Peaks. Our study documents range expansions to northern Arizona for 15 species. The majority of these are range expansions from either southern Arizona, southern Utah, or the Rocky Mountain region of Colorado. Nine species are new records for Arizona, four of which are the southernmost record for that species. An additional 15 species are likely undescribed.

Nose Plugs from Northern Arizona

1945 ◽  
Vol 10 (3) ◽  
pp. 303-307
Author(s):  
John C. McGregor
Keyword(s):  
San Francisco ◽  
Colorado River ◽  
Northern Area ◽  
Large Group ◽  
Northern Arizona ◽  
Single Feature ◽  
San Francisco Peaks

In the summer of 1935 it was realized that a large group of sites just to the east of Flagstaff, between the San Francisco Peaks and the Little Colorado River in northcentral Arizona, were in several respects unique. The presence in this northern area of ball court structures similar to those recognized in southern Arizona by Haury and others was the most outstanding single feature. Subsequently, more detailed research revealed additional southern, or Hohokam-like characters in these sites, and a program of several years of extensive excavation and research was undertaken.

scholarly journals Variation in Plant–Pollinator Network Structure along the Elevational Gradient of the San Francisco Peaks, Arizona

Insects ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1060
Author(s):  
Paige R. Chesshire ◽  
Lindsie M. McCabe ◽  
Neil S. Cobb
Keyword(s):  
San Francisco ◽  
Species Distribution ◽  
Elevational Gradient ◽  
Ecological Change ◽  
Generalist Species ◽  
Northern Arizona ◽  
Changing Climate ◽  
San Francisco Peaks ◽  
The Face ◽  
Plant Pollinator

The structural patterns comprising bimodal pollination networks can help characterize plant–pollinator systems and the interactions that influence species distribution and diversity over time and space. We compare network organization of three plant–pollinator communities along the altitudinal gradient of the San Francisco Peaks in northern Arizona. We found that pollination networks become more nested, as well as exhibit lower overall network specialization, with increasing elevation. Greater weight of generalist pollinators at higher elevations of the San Francisco Peaks may result in plant–pollinator communities less vulnerable to future species loss due to changing climate or shifts in species distribution. We uncover the critical, more generalized pollinator species likely responsible for higher nestedness and stability at the higher elevation environment. The generalist species most important for network stability may be of the greatest interest for conservation efforts; preservation of the most important links in plant–pollinator networks may help secure the more specialized pollinators and maintain species redundancy in the face of ecological change, such as changing climate.

A Primitive Stone Industry of the Little Colorado Valley, Arizona

1943 ◽  
Vol 8 (3) ◽  
pp. 266-268 ◽  
Author(s):  
Katharine Bartlett
Keyword(s):  
San Francisco ◽  
Colorado River ◽  
Alluvial Terrace ◽  
Alluvial Deposits ◽  
Desert Pavement ◽  
Basaltic Rocks ◽  
Northern Arizona ◽  
San Francisco Peaks ◽  
Stone Industry

About eight years ago there was discovered in the valley of the Little Colorado River between Hoi brook and Cameron in northern Arizona, evidence of an ancient alluvial terrace. Sand and waterworn pebbles largely derived from the Triassic Shinarump Conglomerate that once covered the area, form the deposit. The terrace which was formed by the gravels is now much dissected and remains only as the isolated flat tops of hills and ridges, the surfaces of which are covered with a desert pavement of waterworn pebbles. There are remnants also of later and lower alluvial deposits containing angular fragments of rock, of which a large proportion is made up of basaltic rocks from the San Francisco Peaks (Fig. 22).

Options for the management of white pine blister rust in the Rocky Mountain Region

2008 ◽  
Author(s):  
Kelly S. Burns ◽  
Anna W. Schoettle ◽  
William R. Jacobi ◽  
Mary F. Mahalovich
Keyword(s):  
Rocky Mountain ◽  
Mountain Region ◽  
White Pine Blister Rust ◽  
White Pine ◽  
Blister Rust ◽  
Rocky Mountain Region

scholarly journals Controls on Streamflow Densities in Semiarid Rocky Mountain Catchments

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 521
Author(s):  
Caroline Martin ◽  
Stephanie K. Kampf ◽  
John C. Hammond ◽  
Codie Wilson ◽  
Suzanne P. Anderson
Keyword(s):  
Elevation Gradient ◽  
Rocky Mountain ◽  
Surface Flow ◽  
Colorado Front Range ◽  
Front Range ◽  
Channel Network ◽  
Stream Discharge ◽  
Geologic Maps ◽  
National Hydrography Dataset ◽  
Active Flow

Developing accurate stream maps requires both an improved understanding of the drivers of streamflow spatial patterns and field verification. This study examined streamflow locations in three semiarid catchments across an elevation gradient in the Colorado Front Range, USA. The locations of surface flow throughout each channel network were mapped in the field and used to compute active drainage densities. Field surveys of active flow were compared to National Hydrography Dataset High Resolution (NHD HR) flowlines, digital topographic data, and geologic maps. The length of active flow declined with stream discharge in each of the catchments, with the greatest decline in the driest catchment. Of the tributaries that did not dry completely, 60% had stable flow heads and the remaining tributaries had flow heads that moved downstream with drying. The flow heads were initiated at mean contributing areas of 0.1 km2 at the lowest elevation catchment and 0.5 km2 at the highest elevation catchment, leading to active drainage densities that declined with elevation and snow persistence. The field mapped drainage densities were less than half the drainage densities that were represented using NHD HR. Geologic structures influenced the flow locations, with multiple flow heads initiated along faults and some tributaries following either fault lines or lithologic contacts.

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