Products

We identify issues and uncertainties that pose obstacles to conservation and then—in collaboration with internal and external colleagues—develop science products that help overcome those obstacles.

2019 | Freshwater | Terrestrial | Marine | Planning | Economics | Science | Publications & Reports

Aligning evidence generation and use across health, development, and environment

Heather Tallis, Katharine Kreis, Lydia Olander, Claudia Ringler, David Ameyaw, Mark E Borsuk, Diana Fletschner, Edward Game,, Daniel O Gilligan, Marc Jeuland, Gina Kennedy, Yuta J Masuda, Sumi Mehta, Nicholas Miller, Megan Parker, Carmel Pollino, Julie Rajaratnam, David Wilkie, Wei Zhang, Selena Ahmed, Oluyede C Ajayi, Harold Alderman, George Arhonditsis, Ines Azevedo, Ruchi Badola, Rob Bailis, Patricia Balvanera, Emily Barbour, Mark Bardini, David N Barton, Jill Baumgartner, Tim G Benton, Emily Bobrow, Deborah Bossio, Ann Bostrom, Ademola Braimoh, Eduardo Brondizio, Joe Brown, Benjamin P Bryant, Ryan SD Calder, Becky Chaplin-Kramer, Alison Cullen, Nicole DeMello, Katherine L Dickinson, Kristie L Ebi, Heather E Eves, Jessica Fanzo, Paul J Ferraro, Brendan Fisher, Edward A Frongillo, Gillian Galford, Dennis Garrity, Lydiah Gatere, Andrew P Grieshop, Nicola J Grigg, Craig Groves, Mary Kay Gugerty, Michael Hamm, Xiaoyue Hou, Cindy Huang, Marc Imhoff, Darby Jack, Andrew D Jones, Rodd Kelsey, Monica Kothari, Ritesh Kumar, Carl Lachat, Ashley Larsen, Mark Lawrence, Fabrice DeClerck, Phillip S Levin, Edward Mabaya, Jacqueline MacDonald Gibson, Robert I McDonald, Georgina Mace, Ricardo Maertens, Dorothy I Mangale, Robin Martino, Sara Mason, Lyla Mehta, Ruth Meinzen-Dick, Barbara Merz, Siwa Msangi, Grant Murray, Kris A Murray, Celeste E Naude, Nathaniel K Newlands, Ephraim Nkonya, Amber Peterman, Tricia Petruney, Hugh Possingham, Jyotsna Puri, Roseline Remans, Lisa Remlinger, Taylor H Ricketts, Bedilu Reta, Brian E Robinson, Dilys Roe, Joshua Rosenthal, Guofeng Shen, Drew Shindell, Ben Stewart-Koster, Terry Sunderland, William J Sutherland, Josh Tewksbury, Heather Wasser, Stephanie Wear, Chris Webb, Dale Whittington, Marit Wilkerson, Heidi Wittmer, Benjamin DK Wood, Stephen Wood,, Joyce Wu, Gautam Yadama and Stephanie Zobrist

Although environmental conservation, human health, and sustainable development challenges are interconnected, approaches to these challenges and the evidence used remain disconnected. Creating integrated solutions across these sectors will require better alignment of the methods used to assess the problems and quantifying success. In this review,…


2019 | Freshwater | Terrestrial | Marine | Economics | Publications & Reports

MarketLab: Where Economics and Finance Meet Conservation

Sarah Heard

We have an opportunity to apply the principles of economics and finance to demonstrate the value of conservation and create systems that incentivize the protection of nature at scale. In a changing climate, natural landscapes are extremely valuable for the benefits they provide to both…


2019 | Marine | Planning | Science | Publications & Reports

Collaborative research reveals cryptic declines within the multispecies California rock crab fishery

Sean P. Fitzgerald , Hunter S. Lenihan, Jono R. Wilson, Carolynn S. Culver, Matthew Potoski

This paper highlights the benefits of collaborative fisheries research in the management of wild capture fisheries. The authors teamed up with commercial fishermen in the southern California rock crab fishery and sampled over 45,000 crabs over a two-year period. Using statistical techniques, they compared these data to a study…


2019 | Freshwater | Marine | Planning | Technology | Science | Publications & Reports

Insights into estuary habitat loss in the western United States using a new method for mapping maximum extent of tidal wetlands

Laura S. Brophy, Correigh M. Greene, Van C. Hare, Brett Holycross, Andy Lanier, Walter N. Heady, Kevin O’Connor, Hiroo Imaki, Tanya Haddad, Randy Dana

The authors of this study generated new maps of current and historical tidal wetlands in 450 estuaries throughout Washington, Oregon, and California. Using laser-mapping technology known as LIDAR combined with water elevation models, the team estimated that West Coast estuaries historically covered nearly 2 million acres.…


2019 | Marine | Technology | Science | Publications & Reports

eCatch: Enabling collaborative fisheries management with technology

Matt Merrifield, Mary Gleason, Lyall Bellquist, Kate Kauer, Dwayne Oberhoff, Chad Burt, Steve Reinecke, Michael Bella

In 2006, The Nature Conservancy of California purchased 13 federal groundfish permits in California with the objective of managing the fishing and reporting activities in a manner that protected sensitive habitats and species. At that time, collecting data for this fishery was done with paper…


2019 | Terrestrial | Marine | Science | Publications & Reports

Globally important islands where eradicating invasive mammals will benefit highly threatened vertebrates

Holmes ND, Spatz DR, Oppel S, Tershy B, Croll DA, et al.

Restoring islands by eradicating damaging, non-native invasive mammals such as rats, cats, goats, and pigs has repeatedly proven to be a high impact conservation action. New research published in PLOS ONE shows this conservation action can have a major contribution towards stemming the global extinction…


2019 | Terrestrial | Marine | Science | Publications & Reports

Future Directions in Conservation Research on Petrels and Shearwaters

Rodríguez A, Arcos JM, Bretagnolle V, Dias MP, Holmes ND, Louzao M, Provencher J, Raine AF, Ramírez F, Rodríguez B, Ronconi RA, Taylor RS, Bonnaud E, Borrelle SB, Cortés V, Descamps S, Friesen VL, Genovart M, Hedd A, Hodum P, Humphries G, Le Corre M, Lebarbenchon C, Martin R, Melvin EF, Montevecchi WA, Pinet P, Pollet IL, Ramos R, Russell JC, Ryan PG, Sanz-Aguilar A, Spatz DR, Travers M, Votier SC, Wanless RM, Woehler E, Chiaradia A

Seabirds are amongst the most engaged species on our planet. Among these are petrels and shearwaters: species characterized by long ocean journeys for migration and feeding, and a dependence on islands to safely breed and raise young. This dual lifestyle places them at risk from…


2019 | Marine | Technology | Science | Publications & Reports

Opportunities to improve fisheries management through innovative technology and advanced data systems

Darcy Bradley, Matt Merrifield, Karly M. Miller, Serena Lomonico, Jono R. Wilson, Mary G. Gleason

A lack of fishery data leads to uncertainty about stock status, which may compromise and threaten the economic and food security of the users dependent upon that stock and increase the chances of overfishing. Recent developments in the technology available to collect, manage and analyze fishery-relevant data provide…


2019 | Marine | Planning | Science | Publications & Reports

An indicator‐based decision framework for the northern California red abalone fishery

William J. Harford, Natalie A. Dowling, Jeremy D. Prince, Frank Hurd, Lyall Bellquist, Jack Likins, Jono R. Wilson

Among abalone species that were once harvested along the California coastline, red abalone (Haliotis rufescens) supports the remaining recreational fishery. To support development of a red abalone fishery management plan, non‐governmental organizations have initiated expanded data collection and developed fishery management strategies. In this paper,…


2018 | Freshwater | Terrestrial | Marine | Science | Publications & Reports

Conservation Science Catalyst Fund - 2018 Annual Report

Brynn Pewtherer

The Nature Conservancy deploys science to help overcome major challenges facing people and nature. In today’s fast-paced world, turning threats to nature into opportunities for conservation requires agility. The Conservation Science Catalyst Fund enables our science team to mobilize quickly — and produce the information…


2018 | Terrestrial | Marine | Science | Publications & Reports

Islands

Nicholas D. Holmes, Olivier Langrand, Russell A. Mittermeier, Anthony B. Rylands, Thomas Brooks, Dena R. Spatz, James C. Russell, Wes Sechrest, Federico Méndez Sánchez, Cristina Mittermeier (Editor)

Covering only five percent of the land on our planet, islands are home to an estimated 20 percent of the world’s bird, reptile, and plant species, as well as the most astonishing examples of species’ evolution. "Islands" is the 26th volume in the CEMEX Nature Series…


2018 | Marine | Science | Publications & Reports

Reducing bycatch through a risk pool: A case study of the U.S. West Coast groundfish fishery

Kate Kauer, Lyall Bellquist, Mary Gleason, Aliya Rubinstein, Joe Sullivan, Dwayne Oberhoff, Lisa Damrosch, Michelle Norvell, Michael Bell

This paper presents how voluntary collective agreements amongst fishermen can be used to reduce risk of bycatch of sensitive species and improve fishery performance in the West Coast groundfish fishery. We describe the challenges and results of designing and implementing an “insurance risk pool” to…


2018 | Marine | Planning | Technology | Science | Blogs

Managing Fisheries in the Face of Climate Change

Jono Wilson

The author discusses a need for a new paradigm in fisheries management to address the challenges of a changing climate.  See related publication by the author and colleagues in Conservation Letters.


2018 | Marine | Science | Publications & Reports

CA Rock Crab Fishery Management

Sean P. Fitzgerald, Jono R. Wilson , Hunter S. Lenihan

Despite the economic value of California fisheries, many lack information needed to determine if fishing is occurring at a sustainable level. The Southern California Rock Crab fishery in the Santa Barbara Channel is one such data-limited fishery that is currently managed through a state-wide size…


2018 | Terrestrial | Marine | Science | Publications & Reports

Tracking invasive species eradications on islands at a global scale

Holmes ND, Keitt BS, Spatz DR, Will DJ, Hein S, Russell JC, Genovesi P, Cowan PE, Tershy BR

Indicators for tracking conservation efforts at a global scale are rare but important tools for understanding trends and measuring progress towards global conservation targets. Eradication of invasive species from islands is an increasingly used conservation intervention in countries and territories around the world. This paper…


2018 | Freshwater | Terrestrial | Marine | Planning | Science | Publications & Reports

Conserving California's Coastal Habitats: A Legacy and a Future with Sea Level Rise

Walter N. Heady, Brian S. Cohen, Mary G. Gleason, Joshua N. Morris, Sarah G. Newkirk, Kirk R. Klausmeyer, Hilary R. Walecka, Elizabeth Gagneron

Sea level rise presents a new challenge to coastal conservation. The authors quantified and mapped the vulnerability of habitats, imperiled species, and conservation lands to sea level rise throughout the entire California coast, where high biodiversity, high endemism, and 26.5 million people coincide. Combining habitat…


2018 | Terrestrial | Marine | Science | Publications & Reports

Invasive rat eradication strongly impacts plant recruitment on a tropical atoll

Wolf CA, Young HS, Zilliacus KM, Wegmann AS, McKown M, Holmes ND, Tershy BR, Dirzo R, Kropidlowski S, Croll DA

Prior to eradication in 2011, non-native invasive rats were known to be active seed predators on Palmyra Atoll, Central Pacific Ocean. This paper reports on native and non-native tree and palm seedling abundance before and after eradication, with seedling recruitment increasing for five of the…


2018 | Freshwater | Terrestrial | Marine | Planning | Science | Publications & Reports

Improving multi-objective ecological flow management with flexible priorities and turn-taking: a case study from the Sacramento River and Sacramento-San Joaquin Delta

Alexander C.A.D., F. Poulsen, D.C.E. Robinson, B.O. Ma , R.A. Luster

Management of the Sacramento River and Sacramento–San Joaquin Delta is one of California’s greatest challenges, requiring trade-offs between valued components that serve a multiplicity of conflicting purposes. This paper demonstrates an improved method for multiple-objective allocation of water based on a “turn-taking” optimization model. The…


2018 | Marine | Technology | Science | Publications & Reports

Adaptive comanagement to achieve climate‐ready fisheries

Jono R. Wilson, Serena Lomonico, Darcy Bradley, Leila Sievanen, Tom Dempsey, Michael Bell, Skyli McAfee, Christopher Costello, Cody Szuwalski, Huff McGonigal, Sean Fitzgerald, Mary Gleason

Climate change is amplifying threats to ocean ecosystems and marine fisheries worldwide. In order to respond appropriately in the face of these ocean changes, commercial and recreational fisheries management requires improved information collection, expanded utilization of diverse data sources, and enhanced decision-making. While advances in science and…