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Photo Station #279



SEP19480 SEP 1948 1

Photo Archive No. 279.1.1948.09

A48-231. Photo station 279, pasture #3, looking south. Scattered bunches Tca and Adi, some Bro and Agl. Light cover annual grass. Poor growth, all dry now. 9/7.

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NOV20001 NOV 2000 1

Photo Archive No. 279.1.2000.11

PS 279. November 13, 2000, 2:00 p.m. Facing south. Azimuth 191. Pasture 3. ASA 125 Plus X film. 35mm lens focal length. Eragrostis lehmanniana dominant grass; some burroweed; large tree from 1948 is present in left background. Digitaria californica and Muhlenbergia porteri under mesquite. M. McClaran.

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279_1_2007_03 MAR 2007 1

Photo Archive No. 279.1.2007.03

PS. 279. 12 March 2007. Facing south, Azimuth 191. Pasture 3. Elevation 1142 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above. Mesquite alive. Cholla, prickly pear, hedgehog and barrel cacti. Dominant grass is Lehmann lovegrass with some cottontop. Some annual threeawns. Ephedra right midground, and many smaller plants throughout. Many dead burroweed, but some alive. Cottontop and Chloris under mesquite. Blue palo verde right distant. Many rabbit feces in area. Compared to 2000, much less grass mass. M. McClaran photographer, no assistant.

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279_1_2011_03 MAR 2011 1

Photo Archive No. 279.1.2011.03

PS. 279. 15 March 2011. 9:45 AM. Facing south, Azimuth 205. Pasture 3. Elevation 1008 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above. Mesquite alive. Cholla, prickly pear, hedgehog and barrel cacti. Dominant grass is Lehmann lovegrass with some cottontop. Ephedra right midground, and many smaller plants throughout. Cottontop under mesquite. Blue palo verde right distant. Many rabbit feces in area. Compared to 2007, many small burroweed, left front cholla dead, Lehmann lovegrass in prickly pear, perennial grasses possibly unchanged but recent grazing (last month) give the appearance that abundance is reduced because almost all plants were defoliated. M. McClaran photographer, A. Dalke assistant.

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SEP19481 SEP 1948 2

Photo Archive No. 279.2.1948.09

A48-232. Photo station 279, pasture #3, looking west. Scattered bunches Tca and Adi, some Bro and Agl. Light cover annual grass. Poor growth, all dry now. 9/7.

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JUL19870 JUL 1987 2

Photo Archive No. 279.2.1987.07

PS 279. Azimuth 285. July 8, 1987. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.

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NOV20002 NOV 2000 2

Photo Archive No. 279.2.2000.11

PS 279. November 13, 2000, 2:00 p.m. Facing west. Azimuth 285. Pasture 3. ASA 125 Plus X film. 35mm lens focal length. Two Heteropogon contortus in midground; large tree from 1948 is present in left background. Eragrostis lehmanniana dominant grass; some burroweed; Muhlenbergia porteri under mesquite. M. McClaran.

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279_2_2007_03 MAR 2007 2

Photo Archive No. 279.2.2007.03

PS. 279. 12 March 2007. Facing west, Azimuth 285. Pasture 3. Elevation 1117 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness post present, camera above. Mesquite alive. Depression occupied by grass: tanglehead, cottontop, Lehmann lovegrass. Away from depression, Lehmann lovegrass dominates with Chloris. Under mesquite, find cottontop, Lehmann lovegrass, and bush muhly. Under left mesquite, find small blue palo verde. Most burroweed dead, a few small snakeweed. Prickly pear under right mesquite. Compared to 2000, less grass mass and less burroweed. M. McClaran photographer, no assistant.

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279_2_2011_03 MAR 2011 2

Photo Archive No. 279.2.2011.03

PS. 279. 14 March 2011. 9:35 AM. Facing west, Azimuth 290. Pasture 3. Elevation 1008 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness post present, camera above. Mesquite alive. Depression occupied by grass: tanglehead, cottontop, Lehmann lovegrass. Away from depression, Lehmann lovegrass is scattered. Under mesquite, find cottontop, Lehmann lovegrass, and bush muhly. Under left mesquite, find small blue palo verde. Most burroweed dead, a few small snakeweed. Prickly pear under right mesquite. Compared to 2007, many (greater than 25) small burroweed plants, prickly pear in right foreground in poor condition, palo verde under left mesquite has been browsed, perennial grasses possibly unchanged but recent grazing (last month) give the appearance that abundance is reduced because almost all plants were defoliated. M. McClaran photographer, A. Dalke assistant.

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Last updated - April 2011
Mitchel McClaran - mcclaran@u.arizona.edu