COLLABORATIVE RIPARIAN 

RESTORATION IN GLEN CANYON N

Larry Stevens, Senior Ecologist

Grand Canyon Wildlands Council

20 October 2015
Restoration of

Northern Leopard Frog

in Glen Canyon National

Recreation Area

Partnership

NPS, FWS, AGFD, GCWC, AWPF, PC & Other VIPs

TasksPlanning and designCompliancePre‐construction monitoring

ConstructionPost‐construction monitoring
Pond Design
Leopard Frog Marsh

Upper Pond Construction 2014
LFM – Middle Pond, May to August 2015
LFM – Lower Pond, May to August 2015
Hidden Sloug

Pond Construc
Monitoring 2014‐2015
Location Date Time Site Air Temp ͦC pH DO (mg/L) Salinity (ppm) EC (ɥS) H2O Temp ͦC Ʃ Alk (m

Hidden Slough 3/3/2015 ‐‐‐ Mainstream 10.5 7.79 8.0 390 777 9.7 125 

Hidden Slough 3/18/2015 13:25 Mainstream ‐‐‐ 7.96 5.5 391 783 10.0 140 

Hidden Slough 10/25/2014 14:00 Pond 20.0 8.19 4.5 1928 3861 16.5 1148 

Hidden Slough 3/3/2015 ‐‐‐ Pond 10.8 7.82 7.0 275 505 10.4 160 

Hidden Slough 3/18/2015 13:06 Pond ‐‐‐ 8.23 5.0 403 808 19.1 240 

Hidden Slough 8/13/2015 11:20 Pond 27.8 7.80 5.0 505 1008 26.2 240 

Hidden Slough 3/3/2015 ‐‐‐ Slough 10.8 7.56 5.0 330 659 10.4 140 

Hidden Slough 3/18/2015 13:20 Slough ‐‐‐ 8.18 4.8 397 795 17.2 210 

Hidden Slough 8/13/2015 11:00 Slough 27.8 7.91 4.8 385 768 20.4 210 

Leopard Frog Marsh 3/18/2015 11:20 Lower Pond ‐‐‐ ‐‐‐ ‐‐‐ ‐‐‐ ‐‐‐ ‐‐‐ ‐‐‐ Leopard Frog Marsh 5/29/2015 15:30 Lower Pond 26.5 8.18 6.5 129 259 23.3 133 

Leopard Frog Marsh 8/13/2015 6:20 Lower Pond 19.4 7.67 2.5 138 275 21.6 120 Leopard Frog Marsh 5/29/2015 15:30 Mainstream 26.5 8.33 5.5 360 722 10.1 140 

Leopard Frog Marsh 8/13/2015 8:30 Mainstream 19.4 8.08 4.0 363 726 13.4 120 

Leopard Frog Marsh 5/29/2015 15:30 Middle Pond 26.5 7.45 5.0 196 392 25.0 110 

Leopard Frog Marsh 8/13/2015 7:35 Middle Pond 19.4 7.60 3.5 215 430 21.7 220 

Leopard Frog Marsh 10/25/2014 10:00 Spring ‐‐‐ 8.21 5.5 100 200 20.4 92 Leopard Frog Marsh 3/18/2015 12:00 Spring ‐‐‐ 8.23 5.5 95 191 21.2 80 

Leopard Frog Marsh 5/29/2015 15:30 Spring 26.5 8.51 5.5 93 187 21.0 80 

Leopard Frog Marsh 8/13/2015 7:15 Spring 19.4 8.42 4.0 101 202 21.5 100 

Leopard Frog Marsh 10/25/2014 11:00 Upper Pond 11.5 7.61 4.5 218 436 10.6 270 

Leopard Frog Marsh 3/18/2015 11:20 Upper Pond ‐‐‐ 7.62 5.5 215 432 12.8 106 

Leopard Frog Marsh 5/29/2015 15:30 Upper Pond 26.5 7.91 5.5 195 387 22.9 106 

Leopard Frog Marsh 8/13/2015 8:00 Upper Pond 19.4 7.70 2.5 204 408 21.5 180 
Leopard Frog Marsh Water Quality

800 EC (μS)

0

100200300400500600700

EC (μS)

7.007.508.008.50

pH

Temperature (◦C)

05

10152025
   

   

   

   

   

   

     

     

   

Site

CRUS Ostracoda

AMPH Gammaridae Gammarus lacustris

MOLL Physidae Physa

MOLL Hydrobiidae Potamopyrgus antipodarum

DIP Chironomidae Chironomus

EPH Baetidae

HEM Notonectidae Notonecta

ODO Aeshnidae Rhionaeschna multicolor

ODO Aeshnidae larvae

ODO Coenagrionidae Argia

ODO Coenagrionidae Enallagma

ODO Libellulidae Pachydiplax longipennis ad

ODO Libellulidae Paltothemis lineatipes

ODO Libellulidae Libellula saturata

HERP Ambystomidae Ambystoma m. mauvortum?

HERP Bufonidae Anaxyrus punctatum

HERP Bufonidae Anaxyrus woodhousei

LFM ‐ Lower Pond

X

X

X

X

X

X

X

X

X

X

LFM ‐ Middle Pond

X

X

X

X

X

X

X

X

X

X

LFM ‐ Upper Pond

X

X

X

X

X

X

X

X

X

X

LFM ‐ Spring

X

Mainstream

X

HS ‐ Slough

X

X

X

X

X

X

HS ‐ Pond

X

X

X

X

X
Thanks to the many volunteers who assisted with these proje

especially Tim Stephenson, Herman Griego, and Prescott Col