Difference between revisions of "ECOSYSTEM"

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'''Ecosystem'''
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An '''ecosystem''' is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.  
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==[http://gcdamp.com/index.php?title=Long-term_Experimental_and_Management_Plan_(LTEMP) '''LTEMP Resource Goal'''] ==
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Restore, to the extent practicable, ecological patterns and
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processes within their range of natural variability, including the natural
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abundance, diversity, and genetic and ecological integrity of the plant and
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animal species native to those ecosystems.  
  
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Quote: '''“This isn’t rocket science…, this ecosystem is more complicated than that”.'''
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==[http://gcdamp.com/index.php?title=Portal:Desired_Future_Conditions_-DFCs '''Desired Future Condition''']==
  
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'''Nonfish Biotic Communities:'''<br>
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Native non-fish aquatic biota and their habitats are sustainably maintained with ecologically appropriate distributions.<br>
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• Populations of native non-fish species (invertebrates and vertebrates, including Northern Leopard Frog).<br>
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- AMP support, actions and funding are limited to incorporation of dam operations which are conducive to restoration of extirpated species.<br>
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• Minimize the abundance and distribution of non-native species in the CRE.<br>
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• Sustainable dam-influenced aquatic, wetland, and springs plant communities and associated biological processes, including those supporting threatened and endangered species and their habitats.<br>
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'''CRE Riparian Domain:'''<br>
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Native riparian systems, in various stages of maturity, are diverse, healthy, productive, self-sustaining, and ecologically appropriate.<br>
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• Native, self-sustaining riverine wetlands, and riparian vegetation and habitat, with appropriate mixture of age classes.<br>
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• Healthy, self-sustaining populations of native riparian fauna (both resident and migratory).<br>
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• Habitat for sensitive species within the CRE<br>
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• Encourage the resolution of the taxonomic status of the Kanab ambersnail (e.g., completely describe the taxa and subspecies).<br>
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• Habitat for neotropical migratory birds, waterfowl, and other appropriate native bird species.<br>
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• Ecological functions of tributary mouths and riverside springs, including habitat for native species.<br>
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==[[Media:USGS GCMRC Status of LTEMP Metrics Report Dec11 2025-508Comp.pdf| '''Metrics''']]==
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*Deviation from Natural Flow Metric ( with “sub-metrics”: spring-early summer, late summer-fall, and winter deviation from natural flows)
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*Sub-daily Flow Fluctuation Metric
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*Springtime Gross Primary Productivity
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*Percent EPT Metric
  
 
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===''Associated Ad-Hoc Group''===
 
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Currently there are no associated Ad-Hoc Groups for Ecosystem
 
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=== General Wildlife ===
 
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*Approximately '''355 Bird''', '''89 mammal''', '''47 reptile''', '''9 amphibian''', and thousands of aquatic and terrestrial invertebrate species can be found in GCNP and GCNRA's Glen Canyon reach.  (NPS CFMP-EA_pg 19)
 
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=== General Plant Species ===
 
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*Approximately '''129 vegetation communities''', Over '''850 species''' have been reported from GCNRA, and over '''1,750 vascular plant species''' from GCNP (NPS CFMP-EA_pg 19)
 
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===''Work in progress''===
 
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#'''Riparian communities''' are dominated by species such as coyote and seep willows, arrowweed, western honey mesquite, catclaw acacia, and exotic tamarisk with many other species present.
 
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#'''Desert Scrub communities''' are dominated by species such as creosote, white bursage, brittle bush, ocotillo, four-wing saltbush, big sagebrush, ephedra, dropseed, brome grasses, and many other species.
 
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#Approximately '''11%''' of flora in GCNP and GC reach is exotic. 
 
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[[Image:VegetationMonitoring.jpg|500px|center]]
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! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">USBR LINKS</h2>
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*[http://gcdamp.com/index.php?title=Portal:GCDAMP_Knowlege_Assessments GCMRC Annual Reports page]
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*[http://gcdamp.com/index.php?title=EXTIRPATED Species of Management Concern Page]
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*[http://gcdamp.com/index.php?title=Riparian_Vegetation Riparian Vegetation Page]
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*[http://gcdamp.com/index.php?title=Nutrients Nutrients Page]
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*[http://gcdamp.com/index.php?title=Related_Programs Related Programs]
  
 
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*'''[[Media:USGS State of the CR ecosystem in the Grand Canyon- c1282.PDF |USGS State of the Colorado River Ecosystem in the Grand Canyon- c1282]]'''
 
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*According to the ''Basin Study'' (2012)] results suggested that '''ecological''' and recreational metrics were amongst the most vulnerable to future conditions...[Source: 2.4;Figure 2.3]*[http://www.usbr.gov/lc/region/programs/crbstudy/finalreport/Executive%20Summary/Executive_Summary_FINAL_Dec2012.pdf| LINK]
 
  
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*[https://www.usbr.gov/uc/progact/amp/amwg/2026-02-26-amwg-meeting/uc-gcdamp-amwg-naturalprocessesandfish-508-20260226.pdf Annual Reporting Meeting Update 2: Natural Processes (Goal 2), Humpback Chub (Goal 3), Other Native Fish (Goal 5), Rainbow Trout Fishery (Goal 9), and Nonnative Invasive Species (Goal 10)]
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*
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*[[Media:NaturalProcessesMetricsPoster reconciled.pdf | Natural Processes Metrics Poster]]
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*
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*[https://www.usbr.gov/uc/progact/amp/twg/2025-04-10-twg-meeting/uc-gcdamp-twg-arm-naturalprocesses-508-20250410.pdf Natural Processes]
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*[https://www.usbr.gov/uc/progact/amp/twg/2016-10-18-twg-meeting/Attach_04.pdf Linkages Between Lake Powell Reservoir and the Colorado River Below Glen Canyon Dam]
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*[https://www.usbr.gov/uc/progact/amp/twg/2016-02-26-twg-meeting/AR10_Stevens.pdf The Biogeographic Significance of a Large, Deep Canyon: Grand Canyon, Southwestern USA]
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*[https://www.usbr.gov/uc/progact/amp/twg/2016-02-26-twg-meeting/AR11_Anderson.pdf Ecosystem Monitoring in Glen Canyon National Recreation Area]
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*[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_12.pdf The Stakeholder's Perspective - The National Parks Conservation Association]
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*[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_11.pdf Lower Colorado River Multi-Species Conservation Program Update]
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*[[Media:USGS State of the CR ecosystem in the Grand Canyon- c1282.PDF | USGS State of the Colorado River Ecosystem in the Grand Canyon- c1282]]
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*[https://www.usbr.gov/uc/progact/amp/twg/2014-10-28-twg-meeting/Attach_04.pdf Report on Ten Years of Implementing the Lower Colorado Multi-Species Conservation Program (MSCP)]
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*According to the ''Basin Study'' (2012)] results suggested that '''ecological''' and recreational metrics were amongst the most vulnerable to future conditions...[Source: 2.4;Figure 2.3]
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*[http://www.usbr.gov/lc/region/programs/crbstudy/finalreport/Executive%20Summary/Executive_Summary_FINAL_Dec2012.pdf| LINK]
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*[https://www.usbr.gov/uc/progact/amp/twg/2010-11-15-twg-meeting/Attach_11c.pdf Preliminary Update to TWG on Second Ecosystem Modeling Workshop]
  
 
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Latest revision as of 16:53, 18 June 2026
Goal 2 Natural Processes Metrics.jpg

LTEMP Resource Goal

Restore, to the extent practicable, ecological patterns and processes within their range of natural variability, including the natural abundance, diversity, and genetic and ecological integrity of the plant and animal species native to those ecosystems.

Desired Future Condition

Nonfish Biotic Communities:
Native non-fish aquatic biota and their habitats are sustainably maintained with ecologically appropriate distributions.
• Populations of native non-fish species (invertebrates and vertebrates, including Northern Leopard Frog).
- AMP support, actions and funding are limited to incorporation of dam operations which are conducive to restoration of extirpated species.
• Minimize the abundance and distribution of non-native species in the CRE.
• Sustainable dam-influenced aquatic, wetland, and springs plant communities and associated biological processes, including those supporting threatened and endangered species and their habitats.

CRE Riparian Domain:
Native riparian systems, in various stages of maturity, are diverse, healthy, productive, self-sustaining, and ecologically appropriate.
• Native, self-sustaining riverine wetlands, and riparian vegetation and habitat, with appropriate mixture of age classes.
• Healthy, self-sustaining populations of native riparian fauna (both resident and migratory).
• Habitat for sensitive species within the CRE
• Encourage the resolution of the taxonomic status of the Kanab ambersnail (e.g., completely describe the taxa and subspecies).
• Habitat for neotropical migratory birds, waterfowl, and other appropriate native bird species.
• Ecological functions of tributary mouths and riverside springs, including habitat for native species.

Metrics

  • Deviation from Natural Flow Metric ( with “sub-metrics”: spring-early summer, late summer-fall, and winter deviation from natural flows)
  • Sub-daily Flow Fluctuation Metric
  • Springtime Gross Primary Productivity
  • Percent EPT Metric
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 ---
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Updates

VegetationMonitoring.jpg

Links and Information

Papers and Presentations

Other Stuff
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