Do you ever get that feeling that you are being watched? I imagine that is what the ospreys at the nesting platform at the Virginia Institute of Marine Science (VIMS) must feel, if they notice at all. These birds have a camera that is trained on their nest 24/7 during the osprey breeding season (generally from mid-March to October).
Osprey in a nest on the campus of the Virginia Institute of Marine Science (Photo Credit: VIMS)
Ospreys are unique among North American raptors for their diet of live fish and ability to dive into the water to catch them. As a result of their life history strategies, osprey nests occur around nearly any body of water: saltmarshes, rivers, ponds, reservoirs, estuaries, and even coral reefs. The placement of OspreyCam at VIMS provides us with an around-the-clock window into the world and “family” dynamics of these amazing birds. We are able to watch as a mating pair cohabit their nest and use it to rear their young. As you can imagine, once the chickies hatch, things get quite interesting in the osprey nest!
Checkout the addictive live feed below, and happy FSF!!
Introducing the spoon-billed sandpiper:
(c) Roland Digby/WWT/PA Wire, originally published here.
Spoon-billed sandpipers are migratory wader birds that breed in the sub-Arctic and winter in southeast Asia. Best estimates point to less than 100 breeding pairs left in the wild due to a decrease of breeding habitat in the Arctic and increase of bird-hunters in Asia. Don’t worry, this is a story about #OceanOptimism…
It’s generally thought that baleen whales are too large to be successfully attacked by most marine predators. Orcas are typically considered the only real predatory threat to large whales, and even they have to use teamwork to take down a young whale. Large sharks, which also sit near the top of the marine food web, are known to scavenge on whale carcasses as a nutritious and blubbery supplement to their usual diet of fishes and smaller marine mammals. However, evidence has been found that white sharks actually take a proactive approach to increasing the whale carcass supply by attacking live northern right whale calves. Now researchers in South Africa directly observed dusky sharks actively teaming up to bring down a humpback whale calf.
You have probably heard that as the global climate changes due to human influence the sea surface is going to rise and the oceans will get warmer and more acidic. The bit about the oceans increasing in acidity is particularly troubling because it implies calcium carbonate based organisms (oysters, snails, corals, etc.) will simply dissolve in this future dystopian acid-ocean (that is a bit of an oversimplification, but you get the idea).
Ocean acidity is determined by measuring the pH, which relates acidity based on the number of hydrogen ions found in the water. So long story short, as more and more carbon dioxide (CO2) is emitted into the atmosphere, it in-turn fluxes into the oceans forming carbonic acid which results in the release of hydrogen ions lowering the pH. Simple logic would suggest that this spells bad news for calcifying organism (poor Mr. Snail).
Healthy Pretopod shell (left) and degraded Pteropod shell due to ocean acidification (right). (Photo credit: NOAA [climate.gov])
In a very basic sense there is a general dichotomy in the grouping of organisms on this planet as either a plant or as an animal. Myself, like most of the rest of you, belong to the animal group, but there are those organisms out there that exists on the boundary; one in particular is the sea slug, Elysia chlorotica.
The sea slug Elysia chlorotica (Photo credit: Patrick Krug)