Slow‐motion population dynamics in Mojave Desert perennial plants

2000 ◽  
Vol 11 (3) ◽  
pp. 351-358 ◽  
Author(s):  
Martin L. Cody
Keyword(s):  
Population Dynamics ◽  
Mojave Desert ◽  
Slow Motion ◽  
Perennial Plants

Population dynamics and life history patterns of branchiopod crustaceans in Mojave Desert ephemeral rock pools

2001 ◽  
Vol 27 (6) ◽  
pp. 3770-3773
Author(s):  
Peter L. Starkweather ◽  
Nicholas Vaskov ◽  
Theresa C. Ng
Keyword(s):  
Population Dynamics ◽  
Life History ◽  
Mojave Desert ◽  
Rock Pools ◽  
Life History Patterns

The population dynamics of some arid zone plants during 46 years of grazing on Mileura Station, Western Australia

2015 ◽  
Vol 37 (4) ◽  
pp. 367 ◽  
Author(s):  
S. J. J. F. Davies ◽  
S. A. Kenny ◽  
T. F. M. Walsh
Keyword(s):  
Population Dynamics ◽  
Western Australia ◽  
Arid Zone ◽  
Summer Rainfall ◽  
Department Of Agriculture ◽  
Perennial Plants ◽  
Land System ◽  
Western Australian Department ◽  
Land Systems ◽  
Made In

Grazed quadrats were monitored on Mileura Station, Western Australia from 1967 to 2013 in order to study the population dynamics of the perennial plants in two of the land systems on the property. Counts of plants on four quadrats at each of 10 sites were made in 1967, 1976, 1990 and 2013, and individual plants were traced for the first three samplings. Five sites were on the Sherwood land system and five on the Belele land system. The results indicated that the populations of some species in the mulga shrubland increased steadily over the 46 years of the study whereas the populations of other species, especially the small, short-lived shrubs, fluctuated over this period. A reduction in stocking rate from 1976 to 1990 was associated with an increase in the population of perennial plants; the total numbers for the 1976 count were 1506 compared with 2102 in 1990. Mean summer rainfall increased between 1990 and 2013 and this increase may have been associated with the recruitment. Overall, the study showed that commercial stocking, although at a lower rate than that recommended by the Western Australian Department of Agriculture, was compatible with increases in the populations of the perennial components of mulga shrubland in this region.

Quantitative Studies of Roots of Perennial Plants in the Mojave Desert

Ecology ◽  
1974 ◽  
Vol 55 (5) ◽  
pp. 1160-1162 ◽  
Author(s):  
A. Wallace ◽  
S. A. Bamberg ◽  
J. W. Cha
Keyword(s):  
Mojave Desert ◽  
Perennial Plants ◽  
Quantitative Studies

scholarly journals The effect of demographic correlations on the stochastic population dynamics of perennial plants

2016 ◽  
Vol 86 (4) ◽  
pp. 480-494 ◽  
Author(s):  
Aldo Compagnoni ◽  
Andrew J. Bibian ◽  
Brad M. Ochocki ◽  
Haldre S. Rogers ◽  
Emily L. Schultz ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Perennial Plants ◽  
Stochastic Population Dynamics

Effects of high fire frequency in creosote bush scrub vegetation of the Mojave Desert

2012 ◽  
Vol 21 (1) ◽  
pp. 61 ◽  
Author(s):  
Matthew L. Brooks
Keyword(s):  
Mojave Desert ◽  
Plant Invasions ◽  
Fire Frequency ◽  
Creosote Bush ◽  
Community Characteristics ◽  
Short Term ◽  
Desert Ecosystems ◽  
Perennial Plants ◽  
Bromus Rubens ◽  
Creosote Bush Scrub

Plant invasions can increase fire frequency in desert ecosystems where fires were historically infrequent. Although there are many resource management concerns associated with high frequency fire in deserts, fundamental effects on plant community characteristics remain largely unstudied. Here I describe the effects of fire frequency on creosote bush scrub vegetation in the Mojave Desert, USA. Biomass of the invasive annual grass Bromus rubens L. increased following fire, but did not increase further with additional fires. In contrast, density, cover and species richness of native perennial plants each decreased following fire and continued to decrease with subsequent fires, although not as dramatically as after the initial fire. Responses were similar 5 and 14 years post-fire, except that cover of Hymenoclea salsola Torr. & A. Gray and Achnatherum speciosa Trin. & Rupr. both increased in areas burnt once. These results suggest that control of B. rubens may be equally warranted after one, two or three fires, but revegetation of native perennial plants is most warranted following multiple fires. These results are valid within the scope of this study, which is defined as relatively short term vegetation responses (≤14 years) to short fire return intervals (6.3 and 7.3 years for the two and three fire frequency levels) within creosote bush scrub of the Mojave Desert.

Current Issues: Advanced Digital Technology for Supervising Graduate Clinicians

2010 ◽  
Vol 20 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Glenn Tellis ◽  
Lori Cimino ◽  
Jennifer Alberti
Keyword(s):  
Real Time ◽  
Digital Technology ◽  
Clinical Training ◽  
State Of The Art ◽  
Clinical Skills ◽  
Slow Motion ◽  
Video Capture ◽  
Microsoft Excel ◽  
Clinical Supervisors ◽  
Training And Supervision

Abstract The purpose of this article is to provide clinical supervisors with information pertaining to state-of-the-art clinic observation technology. We use a novel video-capture technology, the Landro Play Analyzer, to supervise clinical sessions as well as to train students to improve their clinical skills. We can observe four clinical sessions simultaneously from a central observation center. In addition, speech samples can be analyzed in real-time; saved on a CD, DVD, or flash/jump drive; viewed in slow motion; paused; and analyzed with Microsoft Excel. Procedures for applying the technology for clinical training and supervision will be discussed.

Evolutionary Games and Population Dynamics

1998 ◽  
Author(s):  
Josef Hofbauer ◽  
Karl Sigmund
Keyword(s):  
Population Dynamics ◽  
Evolutionary Games
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