Latest News

Latest News

California Connectivity and Crossings Conference 2026

For those who missed the planned connectivity conference in 2024, we are bringing it back in 2026. We had to postpone because of restrictions on state agency travel and we wanted them there. We are holding it in 2026 to fall between the 2025 and 2027 ICOET conferences, which we also organize (https://icoet.net) and which are also mostly about connectivity and wildlife crossings. So, see you in 2026 or even sooner at the 2025 ICOET.

The Inevitable Rise of the SF Bay

This story in Napa County highlights an issue facing all flattish shorelines around the world -- what to do as the ocean reclaims the land. From flood walls to managed flooding and semi-aquatic neighborhoods, there are many proposals on how to respond.

2024 Year-in-Review & 2025 What's Next?

Bad News:  Well it’s hard to know exactly where the current tumult at the federal level will leave us, but so far it doesn't look great. Readers who are fans of the current president may feel like the chaos is a worthwhile price to get other things accomplished. Others may be already experiencing direct impacts to employment (federal employees and beyond), quality of life (our friends in LGBTQ+ communities), reproductive health and family choice, disease exposure (avian flu, measles, etc.) and general sense of well-being.

The Limits to Growth Model: Still Prescient 50 years Later

In this 2022 report, Club of Rome member Gaya Herrington re-analyzes the "limits to growth" model from 1972 and finds that the conclusions have not fundamentally changed: we are on a precarious peak of production and consumption that leaves us with a binary choice for the future. If we want our youth and future generations to inherit a livable world, we will need to fundamentally change our production and consumption practices. As Herrington says: "But growth can no longer be humanity’s ultimate goal.

We are Hiring a Researcher!

The Road Ecology Center is looking for a researcher to help with our various projects. The position covers data collection and analysis, field and/or computational work, writing reports and publications, and working with diverse organizations.  Lots of opportunities for diverse work experience and professional advancement.

What’s Wrong with (Most) Connectivity Modeling?

(The author has carried out and published most of the connectivity modeling described here, with some of the earliest (e.g., for CA) and largest (e.g., for China) connectivity models. Over the same period, he has also collected and published wildlife connectivity data/evidence, including using camera traps, wildlife-vehicle collision, opportunistic and transect observation, animal sign, GPS-collars, and genetic approaches. The opinions here are based on this experience.)

2023 Year-in-Review & 2024 What’s Next?

Bad News: It’s been a year of many firsts around the world. Most heat records were broken, including for the hottest year on record and highest ocean-surface temperatures. There were consequences of this heat for things we know how to measure (like wildfires, sea-ice cover and glacial melting) and many unknown consequences for myriad microbial, plant, and animal species and communities.

New Road Ecology Center Article: Large-Extent Evaluation of Linkage Models

"Linkage" models are usually developed based on human assumptions about wildlife response to disturbance, and assume perfect knowledge of landscapes by wildlife.  They also result in idealized "linkages" or similar emphasis areas for connectivity conservation.  They are rarely developed based on occurrence or movement information for multiple species, or validated using wildlife occurrence or movement data. In this paper we evaluated 4 connectivity models at the California extent (424,000 km2) and one at a quarter of that extent (Mojave desert).