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le 21 octobre 2018

Pecock Mantis Shrimp - Odontodactylus scyllarus

Posted on 2018.10.21 at 12:32
Current Location: Queensland - Australia
Originally posted by sirterrywatts. Reposted by madman101 at 2018-10-21 12:32:00.

Mantis shrimp are one of the more unusual things you can find on the reef.

They have a long history in the world, with the ancient Assyrians naming them the sea locust, known to kill and eat prawns. However, they are very interesting. Their vision includes the UV spectrum in their peculiar eyes that operate independently. There preferred the method of eating there prey is to either spear or club their food with there forelimbs.

The peacock mantis shrimp seen below, is very colourful and can be very difficult to find among the colours on the reef. More recently these fish have been popular with people wanting to set up a home aquarium. However, there have been a number of cases of the mantis shrimp hitting the glass causing it to crack and in some cases break open.

Behaviourally they have ritualised fighting with one another, and exhibit complex colours indicating which sub-species they are. Confusingly they can both raise there young and be in a long-term relationship, or breed and all the responsibility is left on one parent. Ultimately it depends on the individuals. If you are looking for one however, you simply need to pay a very close attention to the rocks on the upper reef platform. As they prefer to be well hidden and attack fish that swim in front of their burrow.

To take todays photograph I used a 10cm black ball that I put on the end of a rod to lure the mantis shrimp from its hole. This was entirely experimental, but it worked perfectly. Enabling me to take a very clear picture of the subject, to the point of revealing the structure of the eye in detail.

Global Insect Decline Now ‘Hyperalarming’ According to Latest Research

Humans are good at reacting to crises that they can see right before their eyes, but if something isn’t recognizing as an immediate threat, we’re very good at ignoring it. For the last 8 years we have been receiving warnings about the loss of honey bees and other pollinator insects, but yet so far have been wholly unable to comprehend what this means to our future, and therefore have been unable and unwilling to react with any seriousness.

In recent years we’ve reported on this unfolding catastrophe, pointing out the bees in Europe and North America are seeing major declines along with many other critical insects. In 2013, Florida declared two butterfly species had gone extinct. German researchers in 2017 reported on a 75% reduction in the total biomass of flying insects.  Massive die-offs of bees is common these days, and many point to the widespread use of insecticides and other agrichemicals as the major cause.

Insects in general are in a massive die-off today, and the results could be catastrophic for the planet. A new report published in the Proceedings of the National Academy of Sciences brings attention to the spread of this calamity to the Americas, noting some 60-fold losses in arthropods and other insects in the rainforests of central america.

The loss is deeply extending into populations of frogs, birds, and many other ecologically important creatures, and the team of researchers compared insect populations in Puerto Rico today with those 40 years ago.


See tag: BEES

US plan to genetically alter crops via insects feared to be biological war plan

Swarms of robot bees can pollinate plants if climate change and pesticides kill off insects, Dutch scientists say (but could they one day turn on their creators?)

Crickets: The food of the future?

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