Vascular Plant and Vertebrate Inventory of Saguaro ... - USGS

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Figure 6.6. Locations of random infrared-triggered cameras, Saguaro National Park, Rincon Mountain District, 2000-2005. Figure 6.7. Example of three-camera placement at one of the random points, Saguaro National Park, Rincon Mountain District, 2001 and 2002. Location “R” is the random point, “D” is at the nearest mapped drainage to the random point, and “A” is a point chosen by the technician (in this case a natural water hole). 76
(2) Receiver triggers camera to take picture Camera Receiver white-tailed and mule deer) are difficult to distinguish under poor light conditions or if only part of the animal is visible; for these we made the best possible attempt to distinguish them, and sometimes identified the individual to genus only. We entered these and other data (species, number of individuals, film number, location, date, time if available, bait, etc.) into an Access database. For each random area and for each point we summarized the number of species and number of individuals photographed. To create species distribution maps, we converted UTM coordinates to NAD 83 datum and imported them into ArcView. Comparing species abundance and presence among locations using infraredtriggered photography is problematic. As with all methods, animals may not be detected because they are absent, or because they were present and not detected. In addition, rates of detection undoubtedly vary greatly among species. Determining relative abundance can also be difficult. Infrared-triggered camera units often do not operate continuously between the time they are set and when they are next checked because the roll of film may be entirely exposed, or because the unit may fail due to technical problems or field errors. To estimate rates of detection based on effort, we used dates on photographs to determine as closely as possible how many days a camera unit was operating for each roll of film, then summed the number of operational days at each location. Where dates were not available for a roll of film, we substituted the mean number of days it took to fill a 36-exposure roll of film (11.8 days). We compared species richness among the three elevation strata and between random 77 Infrared beam Transmitter (1) Animal blocks infrared beam from getting to receiver Figure 6.8. Typical configuration for an active infrared-triggered camera system. Image based on Swann et al. (2004). Table 6.2. Summary of infrared-triggered camera effort, Saguaro National Park, Rincon Mountain District, 1999–2005. See Appendix K for more complete summary. P= Number of camera nights Location type Elevation stratum Number of cameras Sum Mean SD Non‑random Low 58 2162 37 40.4 Middle 5 200 40 33.6 High 11 294 27 18.8 Random Low 36 515 14 5.9 Middle 44 523 12 8.2 High 21 201 10 6.1
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Powell, Halvorson, Schmidt Vascular
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U.S. Department of the Interior DIR
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Table of Contents Report Dedication
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Table 5.8. Number of breeding behav
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Figure 6.5. Locations of non-random
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Report Dedication Eric Wells Albrec
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Acknowledgements Thanks to Saguaro
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Executive Summary This report summa
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Chapter 1: Introduction to the Inve
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them out. This information, in conj
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communities and is especially usefu
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Chapter 2: Park Overview Brian F. P
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Figure 2.2. Aerial photograph showi
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Figure 2.4. Diagram of the major ve
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Non-native Species and Changes to V
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General Botanizing Methods We colle
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Figure 3.3. Locations of modified-W
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Focal-points: General Patterns We f
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Percent 120 100 80 60 40 20 0 Plant
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well (Swantek et al. 1999). The mos
Page 45 and 46: Chapter 4: Amphibian and Reptile In
Page 47 and 48: Figure 4.2. Locations of intensive
Page 49 and 50: features. We based extensive survey
Page 51 and 52: B). Reptilian species included two
Page 53 and 54: Table 4.6. Relative abundance (mean
Page 57 and 58: Cumulative number of species 50 40
Page 59 and 60: elevation range of the district all
Page 61: in recent years due to sedimentatio
Page 64 and 65: Spatial Sampling Designs We establi
Page 66 and 67: Figure 5.2. Location of section bre
Page 68 and 69: the relative abundance by repeat-vi
Page 70 and 71: Analysis We report relative abundan
Page 72 and 73: with some pine trees, mostly pinyon
Page 74 and 75: Riparian Sonoran Desertscrub Oak Pi
Page 76 and 77: Table 5.5. Mean relative abundance
Page 80 and 81: Nest Adults carrying objects Other
Page 82 and 83: Cumulative number of species Cumula
Page 84 and 85: can impact other native plant and v
Page 87 and 88: Chapter 6: Mammal Inventory Don E.
Page 89 and 90: Figure 6.3. Locations of random (fo
Page 91 and 92: calculated relative abundance by pl
Page 93: Figure 6.5. Locations of non-random
Page 97 and 98: Excluding the results for the white
Page 99 and 100: Table 6.5. Number of photographs of
Page 101 and 102: Cumulative number of species Cumula
Page 103 and 104: point out that the pond at Manning
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Page 107 and 108: Chapter 7: Literature Cited Albrech
Page 109 and 110: Davis, R., and C. Dunford. 1987. An
Page 111 and 112: Kirkpatrick, C., C. J. Conway, and
Page 113 and 114: Rice, J., B. W. Anderson, and R. D.
Page 115: orderlands. Pp. 15-16. In effects o
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126 Family Scientific name Common n
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128 Family Scientific name Common n
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130 Order Voucher Specimen (S), Fam
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132 UA survey type Survey or specie
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138 Survey type Documentation type
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Voucher Collection type Taxon Speci
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Appendix F. List of existing vouche
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Taxon Common name Collectiona Colle
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Appendix G. Mean frequency of detec
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Species Total transects observed Lo
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Oak Savannah Pine-oak Woodland Coni
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Appendix I. Details of small-mammal
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Random or Camera Number of Number o
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Vascular Plant and Vertebrate Inventory of Saguaro ... - USGS

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