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Bonus fact: Horseshoe crabs are extremely important to the biomedical industry because of their unique, copper-based blue blood contains a substance called Limulus amebocyte lysate. The substance, which coagulates in the presence of small amounts of bacterial toxins, is used to test for sterility of medical equipment and virtually all intravenous drugs.

 

Photo credit: Sue Gerhart

PERSEVERANCE 1760

© NASA/JPL-Caltech/MSSS/ASU/NeV-T

 

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Was heißt es, eine aufmerksame Bürgerin oder ein aufmerksamer Bürger zu sein? Was kann ich persönlich tun, um meine Lebenswelt mitzugestalten? Und wie bringen sich andere Communities in die Gesellschaft ein? Um genau diese Fragen dreht sich das CitizenLab.

 

Foto: Ars Electronica / Birgit Cakir

BECOME A CITIZEN SCIENTIST!

 

In 2015, FWRI and the University of Florida launched a citizen science initiative which trained volunteers to assist biologists in surveying, tagging and resighting Florida’s nesting horseshoe crab populations using a standardized scientific protocol. The program has been so successful that FWC is expanding our efforts to a statewide level: bit.ly/2GG085G

Video by Betsey Merkel

DIY-Conservation Biology with Casey Tucker, Director, American Avian Conservation and Research Institute. Hosted at the Rocky River Nature Center, Rocky River Reservation, 24000 Valley Pkwy, North Olmsted, OH 44070.

 

Announcement: www.wcaudubon.org/news/speaker-series-may-3-2016-diy-cons...

 

Connect with Casey Tucker, Director, American Avian Conservation and Research Institute, on the web and social media:

 

•American Avian Conservation and Research Institute Website: tuckercasey.wix.com/aacri-birds

•Explore Casey's extensive Flickr Library: www.flickr.com/photos/wild_auk_photography/albums/

•Follow Casey on Twitter: twitter.com/Wild_Auk_Squawk

•Add Casey to your professional LinkedIn contacts: www.linkedin.com/in/casey-tucker-48aa6528

 

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The only bird species unique to Florida, the Florida scrub-jay is a 12-inch-long, blue and gray crestless jay that lacks the black and white markings on the head, wings, and tail of the more common and widespread blue jay. The physically and behaviorally unique Florida scrub-jay is restricted to scattered, often small and isolated patches of sand pine scrub, xeric oak scrub, and scrubby flatwoods, which occur on well-drained, sandy ridges in peninsular Florida. To learn more about the Florida scrub-jay, visit our website.

MSL 4352 MR

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The male fertilizes the eggs as the female lays them in a nest in the sand. Some males (called satellite males) do not attach to females but still have success to fertilizing the female's eggs as they swarm around the amplexed pair.

 

Horseshoe crab larvae emerge from their nests several weeks after the eggs are laid. Juvenile horseshoe crabs resemble adults except that their tails are proportionally smaller. The young and adult horseshoe crabs spend most of their time on the sandy bottoms of intertidal flats or zones above the low tide mark and feed on various invertebrates.

Photo by Betsey Merkel.

 

Visit Western Cuyahoga Audubon's Home Base - the Rocky River Nature Center, Rocky River Reservation, Cleveland Metroparks, 24000 Valley Pkwy, North Olmsted, OH 44070.

 

For stories and activity updates, subscribe to our Newsletter at goo.gl/jtWxCf

 

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Copyright 2016 Western Cuyahoga Audubon. Creative Commons 3.0 Attribution-Noncommercial-No Derivative Works. Western Cuyahoga Audubon Society, 4310 Bush Ave., Cleveland, OH 44109 Email: info@wcaudubon.org Web: www.wcaudubon.org

My granddaughter's feet with the butterfly she helped to raise from caterpillar. [and her lovely painted toes. ;-)]

  

In ABCs and 123s: T is

 

MSL 4842 CC

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PERSEVERANCE 1594-1595

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PERSEVERANCE 1779

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PERSEVERANCE 1632

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When mating, male horseshoe crabs move parallel to the shoreline on sandy flats and intercept females as they pass by. A male attaches himself to the top of a female’s shell by using his specialized front claws, in a position known as amplexus, and together they crawl to the beach.

While surveying for horseshoe crabs, it's important to specify how many are mating adults and how many are juveniles (4 inches wide or smaller). Reporting the date, time, location and habitat type is also an important part of the survey process.

Observers should note the number of horseshoe crabs observed and whether those horseshoe crabs are mating. Mating crabs “pair up,” with the smaller male on top of the larger female. Other male crabs may be present around the mating pair.

Horseshoe crabs are known for their large nesting aggregations, or groups, on beaches in Florida and mid-Atlantic states like Delaware, New Jersey and Maryland.

 

Photo credit: Dough Reller

Our website contains some great information on horseshoe crabs and this public survey effort. Our FAQ's page bit.ly/33Z1YYh answers a handful of common questions about the species, and this page talks more about the horseshoe crab fishery bit.ly/2JeslQl.

 

Photo credit: Dan Warner

MSL 4629-4634 ML

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