When resistance is futile, new paper advises RAD range of conservation options

Major ecosystem changes like sea-level rise, desertification and lake warming are fueling uncertainty about the future. Many initiatives – such as those fighting to fully eradicate non-native species, or to combat wildfires – focus on actively resisting change to preserve a slice of the past.

However, resisting ecosystem transformation is not always a feasible approach. According to a

new paper published today in the Ecological Society of America’s journal

Frontiers in Ecology and the Environment


, accepting and directing ecosystem change are also viable responses, and should not necessarily be viewed as fallback options or as last resorts. The paper presents a set of guiding principles for applying a “RAD” strategy – a framework that involves either

resisting

,

accepting

or

directing

ecosystem changes.

“We are facing the harsh reality that, in some locations, ecosystems are transforming at such a pace that we won’t be able to restore or rehabilitate them to what they once were,” said Abigail Lynch, the paper’s lead author and a research fish biologist at the United States Geological Survey (USGS) National Climate Adaptation Science Center. “The RAD framework provides a common language for starting productive conversations about what comes next – when we need to consider options to accept and direct change in addition to just trying to resist it.”

The paper was a collaborative effort by 20 federal, state and academic researchers from across the United States. It zeroes in on three National Wildlife Refuges (NWRs) along the East Coast, where sea-level rise is increasing at three to four times the global average rate and transforming ecosystems and local communities. Managers of the three NWRs have applied all three of the responses outlined in the paper:

  • John H Chafee NWR (Rhode Island): managers are

    resisting

    the effects of sea-level rise by depositing dredged sediment on waterlogged salt marshes and securing the sediment with bags of recycled oyster shells.
  • Chincoteague NWR (Virginia): After years of resisting dune overwash, managers are now allowing storm-induced waves to fill in waterfowl impoundments,

    accepting

    the landward transport of sand and moving National Park Service visitor infrastructure.
  • Blackwater NWR (Maryland): Managers are

    directing

    the effects of sea-level rise by facilitating marsh migration upwards. Assisted marsh migration is ten times cheaper than trying to restore marsh in situ.

According to Erik Beever, a research ecologist at the USGS Northern Rocky Mountain Science Center, research affiliate faculty at Montana State University and a coauthor of the paper, the importance of considering costs and benefits is paramount when selecting a course of action within the RAD framework.

“A ‘resist’ approach may involve less cost in the immediate term or may allow the persistence of a culturally treasured species, but it may involve substantially higher costs over the course of a period as short as 10-15 years,” said Beever. “For example, if that treasured species’ bioclimatic niche no longer occurs within the management area, facilitating its persistence will require more intensive and more costly efforts.”

Accepting ecosystem change can involve a fundamental shift in the way of life for communities that rely on an ecosystem’s goods and services. However, solutions that focus on resisting change are becoming increasingly impractical as ecological changes occur more frequently and more dramatically. The paper contends that three broad feasibility criteria – ecological, societal, and financial – must be considered when deciding which RAD strategy is most suitable.

Natural resource managers are using options from within the RAD framework to tackle a variety of problems across many different systems, including:

  • Loss of corals in the Mexican state of Quintana Roo
  • Spruce bark beetle epidemic and wildfires on Alaska’s Kenai peninsula, where white spruce forests are transforming into grasslands
  • Projected decline of cisco populations under warming conditions in Minnesota lakes

In the RAD framework, accepting change is not a passive approach; rather, it is a deliberate course of action geared toward a defined set of objectives. While the framework still needs to be tested and fine-tuned, the authors ultimately view it as a strategy of empowerment.

“It might be tempting to throw one’s hands up in the air when faced with drastic and transformative environmental change, but there are options available,” said Laura Thompson, a coauthor who is a research ecologist at the USGS National Climate Adaptation Science Center and adjunct faculty member at the University of Tennessee, Knoxville. “This RAD framework provides the full range of strategies.”

###


Journal article:


Lynch AJ, Thompson LM, Beever EA, et al. 2021. Managing for RADical ecosystem change: applying the Resist-Accept-Direct (RAD) framework.

Frontiers in Ecology and the Environment.

doi.org/10.1002/fee.2377


Authors:


Abigail J Lynch

1

, Laura M Thompson

1,2

, Erik A Beever

3,4

, David N Cole

5

, Augustin C Engman

2,6

, Cat Hawkins Hoffman

7

,

Stephen T Jackson

8,9

, Trevor J Krabbenhoft

10

, David J Lawrence

7

, Douglas Limpinsel

11

, Robert T Magill

12

, Tracy A Melvin

13

, John M Morton

14

, Robert A Newman

15

, Jay O Peterson

16

, Mark T Porath

17

, Frank J Rahel

18

, Gregor W Schuurman

7

, Suresh A Sethi

19

, and Jennifer L Wilkening

20



1

National Climate Adaptation Science Center, US Geological Survey (USGS), Reston, VA;

2

Department of Forestry, Wildlife and Fisheries, University of Tennessee, Knoxville, TN;

3

Northern Rocky Mountain Science Center, USGS, Bozeman, MT;

4

Department of Ecology, Montana State University, Bozeman, MT;

5

Retired, Aldo Leopold Wilderness Research Institute, Missoula, MT;

6

North Carolina Cooperative Fish and Wildlife Research Unit, North Carolina State University, Raleigh, NC;

7

Climate Change Response Program, National Park Service, Fort Collins, CO;

8

Southwest and South Central Climate Adaptation Science Centers, USGS, Tucson, AZ;

9

School of Natural Resources and Environment and Department of Geosciences, University of Arizona, Tucson, AZ;

10

Department of Biological Sciences and RENEW Institute, University at Buffalo, Buffalo, NY;

11

National Oceanic and Atmospheric Administration (NOAA) Fisheries, Alaska Region, Habitat Conservation Division, Anchorage, AK;

12

Coconino County Parks and Recreation, Arizona Game and Fish Department, Flagstaff, AZ;

13

Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI;

14

Kenai National Wildlife Refuge, US Fish and Wildlife Service (FWS), Soldotna, AK;

15

Department of Biology, University of North Dakota, Grand Forks, ND;

16

NOAA Fisheries, Office of Science and Technology, Silver Spring, MD;

17

Nebraska Game and Parks Commission, Lincoln, NE;

18

Department of Zoology and Physiology, Program in Ecology, University of Wyoming, Laramie, WY;

19

USGS, New York Cooperative Fish and Wildlife Research Unit, Cornell University, Ithaca, NY;

20

Southern Nevada Fish and Wildlife Office, FWS, Las Vegas, NV


Author contact:


Abigail Lynch (

[email protected]

“>

[email protected]

)


RAD resources:



https:/

/

usgs.

gov/

casc/

rad


###


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This part of information is sourced from https://www.eurekalert.org/pub_releases/2021-07/esoa-wri070821.php

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