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CMU LMDC
เข้าร่วมเมื่อ 6 ก.พ. 2019
Macroinvertebrates.org PocketMacro Features Demo
Macroinvertebrates.org PocketMacro Features Demo
มุมมอง: 33
วีดีโอ
Macroinvertebrates.org: A Virtual Resource for Teaching and Learning ID
มุมมอง 1.3K4 ปีที่แล้ว
The Human-Computer Interaction Institute at Carnegie Mellon University with Carnegie Museum of Natural History, Stroud Water Research Center, and Clemson University have officially launched -www.Macroinvertebrates.org - the online Atlas of Common Freshwater Macroinvertebrates of Eastern North America. The expanded collection includes features nine orders of aquatic insects plus other benthic ma...
Insect Gills
มุมมอง 1.8K4 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: This aquatic insect has gills that are usually visible on the outside surface of the insect’s body. Such as on the abdomens of larval mayflies, damselflies, hellgrammites, or some caddisflies, or on the thorax of some larval stoneflies.
Dragonfly Gills
มุมมอง 3494 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: The gills of a dragonfly larvae are in its rectum. To ventilate its gills, the dragonfly pumps water in and out of its anus. The ventilating action is strong enough to provide the dragonfly larvae some jet propulsion, pushing the animal through the water with little or no leg motion, especially to avoid predators.
Riffle Bug walking on water! (Veliidae)
มุมมอง 2964 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: Veliidae, or riffle bugs, are one of two groups of true bugs that are capable of walking or skating on the water surface. In both riffle bugs and water striders (family Gerridae), the ends of the feet, or tarsi, have special water-repelling hairs that allow these insects to stand on the water surface without breaking the nat water surface t...
Crane Fly Larvae Movement (Tipulidae)
มุมมอง 2.4K4 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: Crane fly larvae are generally [?], pushing their way through loose soil or compact accumulation of the dead leaves they usually consume. When removed from their habitats, we are able to see the waves of muscle contractions and expansions that enable them to burrow. To force their way forward, the head-end of the insect becomes narrower, an...
Aquatic Macroinvertebrates Gill Types
มุมมอง 1224 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: This aquatic insect has gills that are usually visible on the outside surface of the insect’s body. Such as on the abdomens of larval mayflies, damselflies, hellgrammites, or some caddisflies, or on the thorax of some larval stonefiles. However, the gills of a dragonfly larvae are in its rectum. To ventilate its gills, the dragonfly pumps w...
Mayfly Tails (Cerci) and Movement
มุมมอง 2494 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: Larvae of mayflies and stoneflies have long filaments at the posterior ends of their bodies. Mayflies may have two sets of filaments, or cerci, or may have three filaments, with the middle filament called simply a median caudal filament. Stoneflies never have more than the two cerci. These filaments often have hairs that assist with their s...
Adult Beetle Swimming Behavior Video
มุมมอง 2184 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: Many adult beetles are able to swim. The manner of swimming is generally characteristic for the different families. Some families, like the so-called crawling water beetle [family Haliplidae], swim slowly with alternating strokes of its hind legs. Beetles of other families, such as predaceous diving beetles [family Dytiscidae], swim rapidly...
Water Scorpion Behavior
มุมมอง 2674 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: The shape and color of larvae and adults of water scorpions, family Nepidae, sometimes look like the stems or roots of plant materials on which they are usually found. They are predators, feeding on unsuspecting insect prey that swim too close to the water scorpion. Part of the strategy to avoid being seen is to move very slowly among the p...
Mayfly Behavior Video (Baetidae)
มุมมอง 5964 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: [Many] species of mayflies are efficient swimmers. They are often streamlined to minimize drag as they move through the water. Also, the two or three tails at the end of the abdomen often have many hairs that are distributed laterally so that the hairs serve as a type of flipper. The up and down motion of the tails resembles the swimming be...
Slow Motion to Avoid Detection
มุมมอง 1204 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: An important survival strategy for most aquatic insects is to avoid detection. Predators, such as damselflies, do not want to be seen by their potential prey. Vulnerable insects such as larvae of beetles and water pennies do not want to be seen by predators. Slow creepy behavior is one way insects such as these can reduce their chances of b...
Black Fly Movement Video (Simuliidae)
มุมมอง 7504 ปีที่แล้ว
Source: Dr. John Morse, Clemson University Transcript: Larvae of black flies [family Simuliidae] move across the bottom of streams in a unique way. The end of the black fly abdomen is equipped with rings of tiny hooks. A larva is able to spin silk from its mouth, applying the silk to the surface of a rock or other solid material. While holding the silk with its jaws, it draws the end of the abd...
Nice , fun to watch and see how they become adults.
dang...almost started feeling sorry for the little fella! haha poor thing can't catch a break!
Imagine how surreal it must’ve been for this stonefly nymph to take its first breaths of air upon leaving the water.
Hi! I'm a film school student in Sweden and for my examination film - a story about a boy reporting an oral assignment about mayflies to his class - I was wondering if could I use a few seconds of footage from this clip? It would be very briefly and i would't use the audio. Ralph and Lisa would of course be mentioned in the credits.
👍💪
Wow, this is amazing
Very interesting video
Thank's very much 🙏😃
I see. Usually in Tennessee they’re only small from what I’ve seen, so when I saw a stonefly the size of my phone on my patio I got a bit shocked.
What a great film.
Made my learning easier 😊
Fascinating!
There may be different types of caddisflies, much as there are different birds, but to be in this day and age of understanding the vast complexity of life and still believe in evolution takes a great effort in blindness. To believe life is a random accident is ridiculous.
Fine tuning argument (appealing to complexity) also applies to an intelligent creator. The bigger issue for evolution is time
Your problem is that you cannot conceive of 4 billion years of Evolution here on Earth and can only imagine something arising in a fictional Eden, de novo complete. No man or woman can understand such time scale but it is revealed by Evolution. Now, if you want to argue that the Universe itself is miraculous in its perfection from the moment it came into existence, I cannot argue. But 14 billion years to create the materials for life and to have it arise slowly but surely requires a conscious design beyond our understanding. And that consciousness if it exists most assuredly is not sitting in judgement in some sky castle concerned with the foibles of mankind. We simply have ZERO evidence that it does. Evidence = verifiable fact. To believe so is both the height of hubris AND the height of child-like magical thinking. You simply must accept that you ARE a miracle, the endpoint of 14 billion years of creation (be proud of that) and at the same time accept that you are an insignificant mote of dust in the face of the Universe (so be humble). Regardless, your faith is not evidence of anything, whereas the power of Evolution is undeniable to anyone with an education and has been experimentally validated time and time again, literally thousands and thousands of times. I hope you can someday accept the miracle of Evolution. It is a beautiful thing to grasp.
This is awesome! Thanks I swear I learned by watching this video then hours of observation on the stream bank. Fly tying changes happening soon for me.
0:21 it flew away
A very underrated video and an underrated insect. It seems they are the aquatic versions of butterflies and moths. The bagworm moth has a similar behavior of constructing a cocoon out of debris and scraps.
Yeah basically, they’re very closely related although not the same order.