




The Coastal Marten is a cat sized mammal in the weasel family once found throughout much of the coastal old growth forests of California and Oregon.
Thought to be extinct until rediscovered in 1996 it has lost 95% of its original habitat due to extensive logging and deforestation.
the current tiny population is split into four groups near the California and Oregon border.
Only around 400 total remain,200 of them in California.
They are listed as threatened under the endangered species act and as endangered under the California ESA.
It is critical that their habitat is protected as they are so close to disappearing completely.
These creatures are extremely vulnerable to forest fires and logging and other human invasion of their habitat.
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Also worrying is the lack of genetic diversity in the four separate populations.
Ideally if their habitat can be expanded to connect these four populations so they can find each other and deepen the gene pool this would go a long way toward preserving this delicate unique creature.
Plus if we protect the Marten we protect all of animals and plants native to its habitat.
For this website I interviewed Phil Detrich one of the authors of the USDA assessment and conservation strategy for the Humbolt (Coastal) Marten.
Here is what Phil had to say:
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What is the best way we can help the coastal marten?
Phil: "We need to do several things.Perhaps most important is continuing work on reducing the risk of severe wildfire spreading into occupied habitat.
That's challenging because they like forests with brush and brush can be flammable in dry conditions like we have this year. So the forest service and others are making fuel breaks at important places to help firefighters reduce the spread of fire when it
does occur.
Another important task is to establish other populations in areas where they've been lost but the habitat is still suitable. That's so if a certain area does get lost to fire there are other areas where they survive."
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What is the best way to identify Coastal Marten habitat?
Phil: "They mostly occur in forests with large trees and with a layer of brush on the ground below the trees. some are found in younger forests that are re-growing after being logged 40 years ago or more. The brush type is important-for instance huckleberry,which has fruit and seeds for chipmunks that martens prey on.
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What is the greatest danger to the Coastal Marten?
Phil: "Severe wildfire over large areas of occupied habitat"
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How do we know how many Coastal Martens there are?
Phil: "We don't know exactly.Population size is estimated from the number captured in smaller areas in scientific work,and applying those numbers across larger areas"
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Is there a way to connect the separate populations of Coastal Martens?
Phil: "Good question. It's challenging for various reasons. The broad Klamath River separates an existing population from unoccupied suitable habitat on the other side,where they were apparently trapped for furs years ago. Maybe it's possible for a few Martens to swim across but biologists are considering capturing and moving some across. In other areas ,such as near the California-Oregon border,we'll have to wait while forests grow back after logging or large wildfires"
Have you seen a coastal Marten in the wild?
Phil: "I live about 100 miles inland from the areas occupied by Coastal Martens and I've never seen one. I have seen their cousins the Pacific Marten in my work and recreation in the areas around Mt. Shasta and Mt. Lassen. But because they're mostly nocturnal, it's very unusual to see one"
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Thank you Phil!
The Coastal Marten



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Only 400 individuals remain
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Their young are called kits.
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They live in coastal forests.
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They are omnivores though they mainly eat small mammals
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They have a large home range for their size,adult males need at least 1300 acres
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Thought to be extinct until 1996
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They are in critical need of protection
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They spend much of their time in trees
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They are mostly solitary
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The Coastal Marten has lost 95% of it's original habitat
Facts about the Coastal marten


to help this unique critter please consider donating to:
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or
to the center for biological diversity
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how to help
Center for Biological Diversity
The Center for Biological Diversity is an organization that believes that all creatures are connected and interdependent (including humans) and they work to preserve the diversity of our planet by protecting all creatures great and small.
Sierra Forrest Legacy
The Sierra Forest Legacy organization works locally within California to build partnerships tp preserve natural habitat and forests for all creatures