New Pinyon Records for Northern Mexico

Bailey, D. K.; Wendt, Tom

doi:10.2307/3670945

Cited by 2 publications

(5 citation statements)

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“…The nearest population of P. remota is in the Sierra de la Madera near Cautrocitnegas, Coahuila, 120 km northeast (Bailey and Wendt, 1979).…”

Section: Resultsmentioning

confidence: 99%

“…The late Pleistocene sites with P. remota are well distributed between these areas suggesting that it was probably present in other mountain ranges as well. Texas pinon currently reaches 1600 m altitude in Mexico and occurs as low as 410 m in Texas (Bailey and Wendt, 1979;Little, 1966). The midden sites with P. remora range from 610 m in the Big Bend to 1430 m in the Hueco Mountains with most of the western sites above 1000 m. The late Pleistocene record of P. remora in Durango suggests that this species was distributed well to the south in Mexico.…”

Section: Resultsmentioning

confidence: 99%

“…with Texas piiion (P. remota Bailey and Hawksworth [= P. cembroides var. remota Little; see Bailey and Hawksworth, 19791) to the east in central Texas and northeastern Mexico (Bailey and Wendt, 1979). The fossil record documents the late Pleistocene distributions of some of these piiions in the present Chihuahuan Desert and allows inferences about past climates.…”

Section: Introductionmentioning

confidence: 83%

“…Texas piiion (P. remota) is found at several locations on the southern edge of the Edwards and Stockton Plateaus (Bailey and Wendt, 1979;Little 1966) that are east of the Chihuahuan Desert boundary defined by Schmidt (1979) using the de Martonne aridity index. Texas p&on is mainly twoneedled though three-needled fascicles are not uncommon east of Marathon, Texas.…”

Section: Coloradomentioning

confidence: 99%

“…Seed coats are thick: Samples from around Cuauhttmoc had a mean thickness of 0.67 mm and Little (1966) has reported seed coats as thick as 1.0 mm. Present elevational ranges of the above taxa can be approximated through published accounts as follows: P. edulis 1290-2900 m (Lanner, 1975); P. remora 450-1600 m (Little, 1966;Bailey and Wendt, 1979); and P. cembroides 1450-2700 m (Bailey and Wendt, 1979).…”

Section: Coloradomentioning

confidence: 99%

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Late Pleistocene Piñon Pines in the Chihuahuan Desert

Lanner

Devender

1981

Quat. res.

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Examination of late Pleistocene packrat middens from the northern and central Chihuahuan Desert disclosed macrofossils of Colorado piñon (Pinus edulis) and Texas piñon (P. remota). Radiocarbon dating indicates that Texas piñon was widespread in Trans-Pecos Texas and northeastern Mexico between 30,000 and 11,000 yr B.P. Today it is found in small refugia east of its former range. In the late Pleistocene Colorado piñon occurred at lower elevations on the northern edge of the Chihuahuan Desert. Both species occurred in the Hueco Mountains, near El Paso, Texas. No clear evidence was found of the presence of Mexican piñon (P. cembroides), though today it is abundant in the Davis and Chisos Mountains. A paleoclimate is postulated that had the following characteristics: increased winter precipitation from Pacific frontal sources, reduced summer temperatures and precipitation, and milder winter temperatures due to a reduced frequency of Arctic airmass incursion. Winter precipitation appears to have decreased from north to south, while winter temperatures, and, possibly, summer precipitation, increased from north to south. During the late Pleistocene, the northern Chihuahuan Desert was dominated by woodlands of piñon pines, junipers, and oaks. The desert-scrub communities that characterize the area today are a Holocene phenomenon.

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“…The nearest population of P. remota is in the Sierra de la Madera near Cautrocitnegas, Coahuila, 120 km northeast (Bailey and Wendt, 1979).…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 83%

Section: Coloradomentioning

confidence: 99%

Section: Coloradomentioning

confidence: 99%