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Photo Station #281



SEP19481 1948 1

Photo Archive No. 281.1.1948

A48-236. Photo station 281, pasture #3, looking north. Scattered bunches Mpo and Tca, Agl, Adi. Fair stand comparatively and fair to good growth on Mpo with poor growth on Tca. All dry now.

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APR19601 APR 1960 1

Photo Archive No. 281.1.1960.04

T-224. 16 Apr 60. SRER, P.S. 281. 10H3b.

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NOV19841 NOV 1984 1

Photo Archive No. 281.1.1984.11

PS 281. Azimuth 10. November 7, 1984. RFB. Honeywell Pentax camera (35mm). 35mm WA lens. f:8-11 1/125 20'. 12:05 P.M. Robert F. Buttery.

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FEB19881 FEB 1988 1

Photo Archive No. 281.1.1988.02

PS 281. Az 10. Feb. 10, 1988. RFB. Canon AE-1 camera. 35mm WA lens. f:5.6 1/125 Inf. 4:10 P.M. Robert F. Buttery.

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APR20001 APR 2000 1

Photo Archive No. 281.1.2000.04

PS 281. April 7, 2000. Facing north. Azimuth 10. Pasture 3. Plus X, ASA 125 film. 35mm lens focal length. Fencepost missing; painted rebar placed. Mesquite all alive; grass is Lehmann lovegrass. On edge of mesquite-creosotebush ecotone. M. McClaran.

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281_1_2007_03 MAR 2007 1

Photo Archive No. 281.1.2007.03

PS. 281. 13 March 2007. Facing north, Azimuth 10. Pasture 3. Elevation 964 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Repainted rebar present, camera above rebar. 5 m north of Road 487. Mesquite alive, joined by Ephedra, creosote and Zinnia. Barrel, prickly pear, hedgehog, and cholla cacti. Bouteloua aristidoides and threeawns main grasses. Unknown small Asteraceae shrub, solitary head, entire alternate leaves that are quite hairy, scabrous stem, that is frequently browsed. Many dead burroweed. Bush muhly under mesquite. Pappus grass distant center near creosote. Mesquite-creosote ecotone and soil change. Compared to 2000, less grass, dead burroweed, and larger prickly pear and barrel cacti. M. McClaran photographer, no assistant.

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281_1_2009_03 MAR 2009 1

Photo Archive No. 281.1.2009.03

PS. 281. 16 March 2009. Facing north, Azimuth 10. Pasture 3. Elevation 962 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Repainted rebar present, camera above rebar. 5 m north of Road 487. Mesquite alive, joined by Ephedra, creosote and Zinnia. Barrel, prickly pear, hedgehog, and cholla cacti. Bouteloua aristidoides and threeawns main grasses. Encelia frutescens is frequently browsed. Bush muhly under mesquite. Pappus grass and Lycium pallida with cottontop as neighbor in distant center near creosote. Mesquite-creosote ecotone and soil change. Compared to 2007, new numerous small (~10-15 cm tall) cholla throughout including small cholla at bottom foreground of photo. M. McClaran photographer, A. Peterson assistant.

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281_1_2015_03 MAR 2015 1

Photo Archive No. 281.1.2015.03

PS. 281. 16 March 2015. 10:48 am. Facing north, Azimuth 10. Pasture 3. Elevation 962 m. ISO 125, 35mm focal length, Canon 5D Mark II Digital Camera. Repainted rebar present, camera above rebar. 5 m north of Road 487. Mesquite alive, joined by Ephedra, creosote, Encelia frutescens and Zinnia. Mesquite leaf emergence starting and other shrubs are flowering. Barrel, prickly pear, hedgehog, and cholla cacti, as well as saguaro in distant left. Bouteloua aristidoides and threeawns main grasses. Bush muhly under mesquite. Pappus grass and Lycium pallida with cottontop as neighbor in distant center near creosote. Mesquite-creosote ecotone and soil change. Compared to 1948, increase in creosote. Compared to 2009, increase in shrubs, new barrel cactus 6-8 cm small in foreground center, decline in prickly pear, cholla increase including foreground plant, bush muhly decline, and less Bouteloua aristidoides. M. McClaran photographer, K. Hawkes assistant.

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SEP19480 1948 2

Photo Archive No. 281.2.1948

A48-235. Photo station 281, pasture #3, looking west. Scattered bunches Mpo and Tca, Agl, Adi. Fair stand comparatively and fair to good growth on Mpo with poor growth on Tca. All dry now.

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APR19600 APR 1960 2

Photo Archive No. 281.2.1960.04

T-223. 16 Apr. 60. SRER, P.S. 281. 10H3b.

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NOV19840 NOV 1984 2

Photo Archive No. 281.2.1984.11

PS 281. Azimuth 278. Nov. 7, 1984. RFB. Honeywell Pentax camera (35mm). 35mm WA lens. f:8-11 1/125 20'. 12:00 Noon. Robert F. Buttery.

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FEB19880 FEB 1988 2

Photo Archive No. 281.2.1988.02

PS 281. Az 278. Feb. 10, 1988. RFB. Canon AE-1 camera. 35mm WA lens. f:5.6 1/125 Inf. 4:15 P.M. Robert F. Buttery.

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APR20002 APR 2000 2

Photo Archive No. 281.2.2000.04

PS 281. April 7, 2000. Facing west. Azimuth 278. Pasture 3. Plus X, ASA 125 film. 35mm lens focal length. Fencepost missing; painted rebar placed. Mesquite all alive; grass is Lehmann lovegrass. On edge of mesquite-creosotebush ecotone. M. McClaran.

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281_2_2007_03 MAR 2007 2

Photo Archive No. 281.2.2007.03

PS. 281. 13 March 2007. Facing west, Azimuth 278. Pasture 3. Elevation 964 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Repainted rebar present, camera above rebar at 1.2 m height. 5 m north of Road 487. Mesquite alive, joined by creosote and Zinnia. Many dead burroweed. Barrel, prickly pear, and cholla cacti. Bouteloua aristidoides, Lehmann lovegrass, and threeawns main grasses. Unknown small Asteraceae shrub, solitary head, entire alternate leaves that are quite hairy, scabrous stem, that is frequently browsed. Many dead burroweed. Bush muhly and Eragrostis cilianensis under mesquite (left midground) with packrat den. Yucca elata behind that mesquite. Mesquite-creosote ecotone and soil change. Compared to 2000, less grass, and dead burroweed. M. McClaran photographer, no assistant.

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281_2_2009_03 MAR 2009 2

Photo Archive No. 281.2.2009.03

PS. 281. 16 March 2009. Facing west, Azimuth 278. Pasture 3. Elevation 962 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Repainted rebar present, camera above rebar at 1.2 m height. 5 m north of Road 487. Mesquite alive, joined by creosote and Zinnia. Barrel, prickly pear, and cholla cacti. Bouteloua aristidoides and threeawns main grasses. Encelia frutescens present. Many dead burroweed. Bush muhly and Eragrostis cilianensis under mesquite (left midground) with packrat den. Yucca elata behind that mesquite only has live mass near ground, the former 80-100 cm top is dead. Mesquite-creosote ecotone and soil change. Compared to 2007, Lehmann lovegrass less common, a small mesquite (~25 cm tall) growing beneath camera locations, small mesquite behind foreground mesquite has had termite cast on left stem trunk and shows sign of damage and some stem death or right side . M. McClaran photographer, A. Peterson assistant.

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281_2_2015_03 MAR 2015 2

Photo Archive No. 281.2.2015.03

PS. 281. 16 March 2015. 11:14 am. Facing west, Azimuth 278. Pasture 3. Elevation 962 m. ISO 125, 35mm focal length, Canon 5D Mark II Digital Camera. Repainted rebar present, camera above rebar at 1.2 m height. 5 m north of Road 487. Mesquite alive, joined by creosote, ephedra, Encelia frutescens and Zinnia. Mesquite leaf emergence starting and other shrubs are flowering. Barrel, prickly pear, and cholla cacti. Bouteloua aristidoides and threeawns main grasses. Bush muhly under mesquite (left midground) with packrat den. Yucca elata behind that mesquite only has live mass near ground, the former 80-100 cm top is missing. Mesquite-creosote ecotone and soil change. Compared to 1948, increase in creosote and death of large mesquite in distant left as well as significant shrinking and decline of mesquite to right of the dead mesquite. Compared to 2009, and less Bouteloua aristidoides; and this image looks slightly south (left) to capture the creosote beyond the road where the 1948 photo shows large mesquite that are now dead or very much smaller. M. McClaran photographer, K. Hawkes assistant.

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Last updated - June 2015
Mitchel McClaran - mcclaran@u.arizona.edu