- California Sea Lions was filmed in the Baha California area where they haul out and raise their young.
- The video portion illustraties their dog-like bark and growls.
- For information on their status in Alaska look at Guide to the Marine Mammals of Alaska by Kate Wynne.
- She mentions that sightings in Alaskan waters are rare but increasing.
- For information about California Sea Lions look at https://www.fisheries.noaa.gov/species/california-sea-lion
These videos are free to use for educational purposes. To download them click on vimeo on the bottom right. To view them full screen click on the symbol next to the HD at the bottom. The bullets can be copied and pasted into a word document.
- Bugs in Loreto shows the insects I saw on about a 10 day visit to Loreto, Mexico.
- I was surprised at how few I could find.
- A review is what is known about the decline of tropical insects is discussed in this report Perspective: Where might be many tropical insects?
by Daniel H. Janzen and Winnie Hallwachs
- Many of the birds that nest in Alaska spend the winter in Mexico. Some, such as warblers, eat mostly insects.
- Ruddy Ducks Sleeping and Preening is a short video taken in Loreto Mexico in February.
- These ducks are considered rare in Alaska, they have been found throughout the state and are known to breed in Southcoastal and Central Alaska.
- They are typically called Stiff-tailed Ducks.
- According to the Birds of North America: Birders appreciate it, however, because adult males are richly colored with a striking, bright, sky-blue bill and have a highly entertaining courtship display. Indeed, compared with other North American ducks, the Ruddy Duck is unusual in almost every aspect of its biology.
- For information about this unique duck look at: Brua, R. B. (2002). Ruddy Duck (Oxyura jamaicensis), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bna.696
- Harbor Seal Behavior Underwater the bedroom shows the seals sleeping, resting, and some interaction in early March in Juneau Alaska.
- They supposidly can sleep underwater for up to 30 minutes.
- How can they do that ?
- They slow their heart rate, stop their breathing, and shunt blood flow to the brain, heart, and muscles when starting a dive.
- They have positively charged oxygen-binding proteins, called myoglobin, in their muscles.
- This enables them to keep a larger store of oxygen on which to draw while underwater.
- Many of the seals in this video sleep up to 20 minutes. I shortened the clips quite a bit to avoid to much boredom.
- Nugget Falls in Real Time is a video I took of the falls in March of 2019.
- Of special interest is it shows a Moulin on the face of Mendenhall Glacier.
- To learn more about moulins look at Internal Drainage of Glaciers and their Origin
- Also look at INTERNAL GEOMETRY AND EVOLUTION OF MOULINS,
- Nugget Falls is a video I took at 240 frames per second in March of 2019.
- Of special interest is a Moulin that shows on the face of Mendenhall Glacier.
- To learn more about these Moulins look at /sites/default/files/igs_journal_vol34_issue117_pg242-248.pdf
- Queen Bumblebees on Early Blueberry Blossoms shows the queens getting pollen from these blossoms in the Juneau area in late March of 2019.
- This video was taken with the Panasonic FZ1000 camera set at 120 frames per second to help illustrate their behavior better.
- The species of bumblebee looks like the Black Tail Bumble Bee (Bombus melanopygus). This species is one of the earliest to emerge and start nesting.
- Tiny Shrimp shows an intertidal shrimp feeding.
- These may be the Sitka coastal shrimp (Heptacarpus sitchensis). This is one of the most common intertidal shrimps along the US Pacific coast.
- We have many species of shrimp in Alaska. Take a look at Shrimps of Alaska by NOAA. https://access.afsc.noaa.gov/pubs/posters/pdfs/pdrumm04_shrimps-of-alaska.pdf