Category Archives: Wildlife

Interpretive Blogs about Wildlife and Plants

Tree Lupine (Lupinus arboreus)

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Public domain, Wikimedia Commons

What’s that soft yellow bush in the distance? It just might be a Tree Lupine (Lupinus arboreus). The common names are yellow bush lupine (US) or tree lupin (UK).

This perennial will grow to about 79-inches in full sun. Tree lupins typically live up to seven years and are hardy to 10˚F.

The attractive yellow flowers held on a 12-inch stem is rich in nectar and pollen. The gray-green leaves are palm-shaped and covered with fine, silky hair.

Lupins are attractive to many bees, butterflies, and moths. Tree Lupins host to ten or more butterflies and moths. Some have estimated the number to be upwards of 39 in total. Lupines do not appear to be attractive to birds.

Wolf?

The term lupine is from the Latin for “wolf,” referring to the mistaken belief that these plants deplete soil minerals. The opposite is actually true.

Many species of Lupine will collect nitrogen from the air. This ability gradually enriches surrounding soils and may displace native varieties adapted to more nitrogen-poor conditions.

Invasive Tendencies

Tree lupins are strong growers and can outcompete other grasses, forbs, and native plants. It grows in a number of different soils with good drainage including sand dunes and coastal sage scrub. At one time, this plant was used to stabilize sand dunes and other soils along the Oregon and California coast.

This species can threaten native plants through hybridization. There are approximately 220 species of lupines with many growing in the North American west.

Yellow Lupin creates a lot of seeds every year. These seeds persist in the soil for a very long time and can create a seed bank.

Unsprouted seeds collect and lay dormant in a shallow mat below the shrub. This seed bank will sprout with even minimal disturbance. Disturbances can include manmade or environmental. Even something like rodent activity or wind is enough to cause sprouting.

Lupins can be toxic depending on season, variety, and plant parts. Seeds for instance are often very toxic. A wide variety of less invasive and colorful lupines are available commercially.

REFERENCES:
–Tree Lupine, https://www.fws.gov/refuge/Humboldt_Bay/wildlife_and_habitat/YellowBushLupine.html
–Lupine, https://www.britannica.com/plant/lupine
—Lupine arboreus, https://calscape.org/Lupinus-arboreus-()

Black Bears, Ursus americanus

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Oregon is home to nearly 30,000 black bears, Ursus americanus, America’s most common bear species. They can grow up to six feet long and weight anything from 125 to 500 pounds. In fact, the name “black bear” is misleading, because they can have brown or gray coats.

If you’re on the lookout for bears in Oregon, you’ll only find black bears, since grizzlies haven’t been seen in the state since the 1930s. They make their home in Oregon’s abundant forests, where they create dens for hibernation, climb up trees, and forage.

If you’re really looking to find one, try visiting areas that have been clear-cut and allowed to grow for a few years. They are easier to spot, and they feed on the grass and brush.

They also feed on berries, nuts, and fruits; they can eat small mammals, insects, fish, and amphibians, but they are not usually actively hunting.

The best time to spot a black bear is in the middle of the summer, when their breeding season begins. Males and females will be more active, and yearling bears are becoming independent and can be seen roaming around roads and clear cuts. They are also independent animals, so don’t expect to see many in the same place.

Sources:

https://www.dfw.state.or.us/wildlife/living_with/black_bears.asp

http://www.oregonwild.org/wildlife/black-bear

http://ouroregoncoast.com/coast-notes-list/159-news/1309-black-bears-on-the-oreogn-coast.html

Largemouth Bass (Micropterus salmoides)

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Humans have a love-hate relationship with Largemouth bass.
How can the most popular game fish in North America also be an invasive species?

Image courtesy of ODFW

Basics

Largemouth bass are carnivorous freshwater found in lakes, ponds, and rivers. Coastal fish in our region can exceed 25-inches and weigh 12 lbs. The longest ever largemouth bass recorded at 39.2 inches; the heaviest at 22 lbs.

Range

The original largemouth bass North American range included the St. Lawrence River, Great Lakes, Hudson Bay-Red River, and Mississippi River basin. Largemouth bass are found North Carolina to Florida and into northern Mexico.

Bass are considered to be one of the world’s most tolerant freshwater fish that easily adapt to lakes, ponds, reservoirs, rivers, and sloughs. They are also tolerant of various water temperatures (both hot and cold). This flexibility has helped these fish become year-around favorites in many areas. Georgia and Mississippi chose largemouth bass as their ‘State Fish.’ Florida and Alabama chose the bass for their ‘State Freshwater Fish.’

Habitat

Bass look for areas with weedy or overhanging cover, submerged structures, and varying depths. They look for sandy, mucky, or gravelly bottoms. Rock and weedy bottoms are using for nesting. Too much weed cover hampers hunting and feeding activities and can cause the fish to starve.  

Diet

Adult Largemouth bass are opportunistic Apex predators. They have the capability of outcompeting native fish and other species when transplanted to a new environment. This has led to declines and extinctions of native frogs, salamanders, and a wide variety of fish species in some lakes.

As adults, they hunt smaller fish and younger members of large fish species. Other prey include snails, crawfish, snakes, water birds/fledglings, and mammals (bats, etc.). Prey may be as large as 50 percent of the fish’s body or larger.

Recreation

There will be no question if you hook a Largemouth bass. When hooked, bass will leap, dive, and put up a good fight. These antics and powerful fight has helped make them one of the most popular recreational fish species in the world.

Bass fishing is a multi-million dollar industry in the U.S. Competitive bass fishing is popular in the U.S., Japan, Korea, Italy, Australia, and South Africa.  The popularity of bass fishing has encouraged the development of specialized gear such as:

  • electronic “depth” finder and “fish” finding instruments,
  • drift boats, float tubes, and bass boats.

These fish are very tolerant to careful catch and release fishing. Large largemouth bass are often adult breeding females that should be released when possible.

Can you eat them?

Why yes. In the spring, the smaller largemouth (around 10-14 inches) typically have higher quality meat. The meat has few bones making it a choice for grilling, frying, or adding to other recipes. Cooking odors may say ‘outdoor barbeque’ for many, and the taste may be a little too ‘fishy’ for some (based on the individual fish’s diet).

Where to fish them?

There are fantastic fishing areas in our region. Some areas to visit include: Tenmile Lakes in Lakeside (premier), and Loon, Tahkenitch, Siltcoos, and Lytle Lakes.  For more information see your Oregon Dept. of Fish and Wildlife regulations and license requirements.

REFERENCES:
–Oregon Dept. of Fish and Wildlife, largemouth bass (https://myodfw.com/fishing/species/largemouth-bass)
–Canada BC Invasive Fish (https://bcinvasives.ca/invasive-species/identify/invasive-fish/largemouth-bass)
–Best Fishing in America, Largemouth bass fishing in Western Oregon (https://www.bestfishinginamerica.com/OR-largemouth-bass-fishing-in-western-oregon.html)
–Wikipedia, largemouth bass (https://en.wikipedia.org/wiki/Largemouth_bass)
–USDA, Fish and Wildlife Service, Freshwater Fish of America (https://www.fws.gov/fisheries/freshwater-fish-of-america/largemouth_bass.html)
–Can you eat largemouth bass (https://btycc.org/can-you-eat-largemouth-bass/#Is-largemouth-bass-good-to-eat?)