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Table 3. Average (± standard error) of δ 13 C (‰) values for consumers and organic matter in the control and manipulation reaches post-litter addition in Bluff River Cave. Percent of consumer biomass composed of carbon from the amended corn litter as estimated from a standard linear mixing model (two-source, single-isotope). FPOM = fine particulate organic matter (≥250 to 500 µm). CPOM: C3 plants = coarse particulate organic matter (≥500 µm) that is only of C3 plant origin. Control Manipulation % carbon from corn litter C. tenebrosus -21 (1) -17 (0.7) 16 Eurycea sp. -25 (0.2) -16 (0.8) 56 Caecidotea -25 (0.2) -17 (1.1) 50 Ephemeroptera -25 (0.6) -13 (0.3) 73 Plecoptera -25 (0.3) -19 (1.6) 36 Chironomidae: Non-Tanypodinae -27 (0.3) -15 (0.4) 70 Chironomidae: Tanypodinae -26 (0.3) -15 (0.7) 61 Oligochaeta -26 (0.2) -17 (0.7) 48 Wood -27 (0.3) -27 (0.3) FPOM -27 (0.2) -25 (0.8) CPOM: C3 plants -29 (0.2) -28 (0.3) Corn litter -11 (0.1) 69
Figure 1. Mean (bars are standard errors) in control (black circles) and manipulation (white squares) reaches in Bluff River Cave, Jackson Co., AL, U.S.A. of (a) organic matter, (b) total macroinvertebrate biomass, (c) obligate cave macroinvertebrate biomass, (d) facultative macroinvertebrate biomass, (e) Cambarus hamulatus, (f) Cambarus tenebrosus, (g) Gyrinophilus palleucus, and (h) Eurycea sp. Vertical dashed line indicates beginning of litter amendment. 70
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THE INFLUENCE OF ENERGY AVAILABILIT
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ABSTRACT Detritus from surface envi
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LIST OF ABBREVIATIONS AND SYMBOLS m
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NC IL ON U.K. VIAT VIE Fig. North C
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AIC K-S Akaike information criterio
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laboratory work and was an excellen
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LIST OF TABLES TABLE 2.1 TABLE 2.2
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LIST OF FIGURES FIGURE 2.1 (a) Box
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FIGURE 4.3 Growth models for Orcone
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chemolithoautotrophy-based systems;
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ecology, 51, 31-53. Gibert J. & Cul
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CHAPTER 2 EFFECTS OF ORGANIC MATTER
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community structure in cave “pits
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communities and how variation in co
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the different source locations was
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of natural-log transformed data (%
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peak in organic matter in Big Mouth
Page 35 and 36: Figs. 5a, b). The breakdown rate of
Page 37 and 38: per litter bag. Similarly, Huntsman
Page 39 and 40: ags was the greater retention of li
Page 41 and 42: Historically, limited resource inpu
Page 43 and 44: Culver, D.C. & Pipan, T. (2009) The
Page 45 and 46: Merritt, R.W., Cummins, K.W. & Berg
Page 47 and 48: Table 1. Mean (1 S.D.) macroinverte
Page 49 and 50: Table 2. Mean (±1 S.D.) daily temp
Page 51 and 52: Figure 1. (a) Box and whisker plot
Page 53 and 54: Figure 3. Non-metric multidimension
Page 55 and 56: Figure 5. Box and whisker plot of l
Page 57 and 58: streams, while the obligate-cave sp
Page 59 and 60: More recent observational and exper
Page 61 and 62: of netting (mesh size 2.5×1.5-cm)
Page 63 and 64: the two end-members. This conservat
Page 65 and 66: crop organic matter significantly i
Page 67 and 68: macroinvertebrate biomass to levels
Page 69 and 70: and surface streams (20-35,000 g m
Page 71 and 72: these factors, the stable isotope a
Page 73 and 74: surface streams. Thus, it is likely
Page 75 and 76: subsides to ecosystem dynamics have
Page 77 and 78: populations. Journal of Applied Eco
Page 79 and 80: Poulson T.L. & Lavoie K.H. (2001) T
Page 81 and 82: Wood P., Gunn J. & Perkins J. (2002
Page 83 and 84: Table 2. Mean (±1 standard deviati
Page 85: Table 2. Continued Chironomini Para
Page 89 and 90: Figure 3. Non-metric multidimension
Page 91 and 92: CHAPTER 4 REXAMINING EXTREME LONGEI
Page 93 and 94: individuals, he predicted that it w
Page 95 and 96: A phylogeographic study by Buhay &
Page 97 and 98: differences in size structure among
Page 99 and 100: and females in Tony Sinks Cave were
Page 101 and 102: Estimates of life span for O. austr
Page 103 and 104: available size-classes were well re
Page 105 and 106: References Anonymous (1999) Cave Sc
Page 107 and 108: Huryn A.D. & Wallace J.B. (1987) Pr
Page 109 and 110: Whitmore N. & Huryn A.D. (1999) Lif
Page 111 and 112: Table 2. Estimated life span (years
Page 113 and 114: Figure 1. Annual growth increment (
Page 115 and 116: Figure 3. Growth models for Orconec
Page 117 and 118: CHAPTER 5 CONSUMER-RESOURCE DYNAMIC
Page 119 and 120: following incidental inputs of orga
Page 121 and 122: Temperature data were not available
Page 123 and 124: minimum (Venarsky et al., 2012b). A
Page 125 and 126: 100% organic matter (i.e., maximum
Page 127 and 128: Macroinvertebrate biomass varied si
Page 129 and 130: Discussion The energy-limitation hy
Page 131 and 132: crayfish captured in most months we
Page 133 and 134: systems is likely high, especially
Page 135 and 136: function of microbial films in grou
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Crustacean Biology, 4, 35-54. Momot
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Whitmore N. & Huryn A. (1999) Life
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Table 2. Assimilation efficiencies
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Table 3. Continued Tanypodinae 0.03
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Table 5. Estimates of mean wood and
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Figure 1. (A) Box and whisker plot
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CHAPTER 6 OVERALL CONCLUSIONS Due t
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characteristics (e.g., higher growt
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characteristics, highly efficient p
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