Algae of Quitobaquito: A Spring-Fed Impoundment in Organ Pipe Cactus National Monument

1965 ◽  
Vol 10 (4) ◽  
pp. 227
Author(s):  
D. E. Kidd ◽  
W. E. Wade
Keyword(s):  
National Monument ◽  
Organ Pipe

scholarly journals Accumulation of Silicon in Cacti Native to the United States: Characterization of Silica Bodies and Cyclic Oligosiloxanes in Stenocereus thurberi, Opuntia littoralis, Opuntia ficus-indica, and Opuntia stricta

2014 ◽  
Vol 9 (6) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Cynthia R. Wright ◽  
Emanuel A. Waddell ◽  
William N. Setzer
Keyword(s):  
United States ◽  
Essential Oils ◽  
The United States ◽  
Gas Chromatography Mass Spectrometry ◽  
Opuntia Ficus Indica ◽  
National Monument ◽  
Stenocereus Thurberi ◽  
Organ Pipe ◽  
Santa Catalina Island

Four different cactus species growing in the United States, Stenocereus thurberi growing in Organ Pipe Cactus National Monument, Arizona, Opuntia littoralis and Opuntia ficus-indica, growing on Santa Catalina Island, California, and Opuntia stricta, growing in northern Alabama, were examined for the presence of silica bodies (opaline phytoliths). Silica bodies were found in all four of these cactus species, parallelepiped-shaped crystals in S. thurberi, and starburst-shaped crystalline structures in the three Opuntia species. In addition, the essential oils of the four cactus species were obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. To our surprise, S. thurberi, O. littoralis, and O. ficus-indica (but not O. stricta) essential oils contained cyclic oligosiloxanes. To our knowledge, cyclic oligosiloxanes have not been previously found as essential oil components.

Arthropod History of the Puerto Blanco Mountains, Organ Pipe National Monument, Southwestern Arizona

2021 ◽  
pp. 363-379
Author(s):  
W. Eugene Hall ◽  
Thomas R. Van Devender ◽  
Carl A. Olson
Keyword(s):  
National Monument ◽  
History Of ◽  
Organ Pipe

Faunal Analysis of Late Quaternary Vertebrates from Organ Pipe Cactus National Monument, Southwestern Arizona

1991 ◽  
Vol 36 (1) ◽  
pp. 94
Author(s):  
Thomas R. Van Devender ◽  
Amadeo M. Rea ◽  
W. Eugene Hall
Keyword(s):  
Late Quaternary ◽  
Faunal Analysis ◽  
National Monument ◽  
Organ Pipe

scholarly journals Nesting of the Crested Caracara in Organ Pipe Cactus National Monument, Arizona

Western Birds ◽  
2018 ◽  
Vol 49 (2) ◽  
pp. 158-162
Author(s):  
Joseph L. Veverka ◽  
Tyler H. Coleman
Keyword(s):  
National Monument ◽  
Organ Pipe

scholarly journals Examining Fouquieria splendens in an environmental and ecological context: Effect of topography and interspecific neighbors on ocotillo morphology and distribution

2020 ◽  
Author(s):  
Anastasia Bernat ◽  
Acacia Tsz So Tang ◽  
Allegra Steenson ◽  
Eric Larsen
Keyword(s):  
Sonoran Desert ◽  
American Southwest ◽  
Ecological Context ◽  
National Monument ◽  
Trade Offs ◽  
Individual Traits ◽  
Variable Morphology ◽  
Organ Pipe ◽  
National Hydrography Dataset ◽  
Insight Into

AbstractFouquieria splendens is a stem-succulent native to the Chihuahuan, Mojave, and Sonoran Deserts that spans Mexico and the American Southwest. It is well-known for its variable morphology, the underlying reason for which remains incompletely understood. Here, we attempt to quantify the effect of topographic and interspecific factors on F. splendens morphology and distribution. To this end, we measured 27 ocotillos located in the Organ Pipe Cactus National Monument within the Sonoran Desert during June of 2019. We also quantified the spatial distribution of interspecific neighbors relative to F. splendens within two topographically different sites: a bajada gradient and a plain. Using ocotillo morphology, the distances to the nearest neighbors of ocotillos, and hydrographic data extracted from the National Hydrography Dataset, we demonstrate 1) the effect of major interspecific neighbors, i.e. shrubs and cacti, on ocotillo morphology; 2) the effect of elevation on intraspecific spacing as individuals compete for limited space; and 3) a trade-off between height and number of branches. This places F. splendens morphology in its larger environmental and ecological context, highlighting the importance of individual traits and associated trade-offs among traits affected by topography and interspecific neighbors. By examining the ocotillo in a multi-species community and diverse landscape, this study provides empirical insight into a wider range of factors contributing to the variation in F. splendens morphology and spacing.

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