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Comparing seabirds, shorebirds, and wading birds

May 23, 2012 by 6 Comments

Here is a general overview of 10 characteristics of seabirds (birds that spend most of their life out at sea), shorebirds (migratory birds that scurry along the shore looking for food), and wading birds (taller birds that wade in wetlands for their food).

10 characteristics of seabirds (Examples include albatross, auk, booby, frigatebird, fulmar, gannet, murre, penguin, petrel, puffin, shearwater, and tropicbirds)

1. Seabirds are pelagic, spending most of their lives far out at sea.
2. Seabirds move toward to coastal areas to breed or raise young for a minimal amount of time.
3. Seabirds are light on their undersides and dark on top (an adaptation known as countershading).
4. Seabirds have more feathers than other types of birds for more insulation and waterproofing.
5. Seabirds have flexible webbed feet to help gain traction as they take off for flight from the sea.
6. Some seabirds have unusually sharp claws used to help grasp fish under the water.
7. Some larger seabirds (e.g., albatross) have long, slim wings allowing them to soar for long distances without getting tired.
8. Some smaller seabirds have short wings for maneuvering at the surface of the water.
9. Seabirds have specialized glands to be able to drink the saltwater and excrete salts.
10. Some seabirds (e.g., gannets) have head shape is usually tapered more efficiency in plunge diving.

10 characteristics of shorebirds (Examples include avocets, black skimmer, oystercatchers, plover, sandpiper, and stilt)

1. Shorebirds have long legs, pointed beaks, and long pointed wings.
2. Most shorebirds are migratory (Impressively some shorebirds fly non-stop for 3-4 days, equivalent to a human running continuous 4-minute miles for 60 hours).
3. Shorebirds wade close to the shore and poke their bills into the ground in search of food.
4. Shorebirds are small to medium size wading birds.
5. Shorebirds tend to frequent wetlands and marshes and are biological indicators of these environmentally sensitive lands.
6. Shore birds are of the order Charadriiformes.
7. Shorebirds are very well camouflaged for their environment and their appearance may vary from place to place as plumage (feather colors) are gained or lost during breeding.
8. Shorebirds typically range in size from 0.06 to 4.4 pounds.
9. Oystercatchers have a unique triangular bill that is a cross between a knife and a chisel.
10. The black skimmer is the only native bird in North America with its lower mandible larger than the upper mandible, which helps the bird gather fish as it skims the ocean surface.

10 characteristics of wading birds (Examples include crane, egret, flamingo, herons, ibis, rail, spoonbill, and stork)

1. Wading birds are found in freshwater or saltwater on every continent except Antarctica.
2. Wading birds have long, skinny legs and toes which help them keep their balance in wet areas where water currents may be present or muddy ground is unstable. Also, longer legs make it easier for them to search for food (forage) in deeper waters.
3. Wading birds have long bills with pointed or rounded tips (depending on what is more efficient for the types of food the bird consumes).
4. Wading birds have long, flexible necks that can change shape drastically in seconds, an adaptation for proficient hunting.
5. Herons have sophisticated and beautiful plumes during the breeding season, while smaller waders such as rails are much more camouflaged.
6. Wading birds may stand motionless for long periods of time waiting for prey to come within reach.
7. When moving, their steps may be slow and deliberate to not scare prey, and freeze postures are common when these birds feel threatened.
8. Adult wading birds are quiet as an essential tool for hunting. Wading birds may be vocal while nestling or while in flocks together.
9. Many wading birds form communal roosts and breeding rookeries, even mixing flocks of different species of wading birds or waterfowl.
10. Wading birds fully extend their legs to the rear when flying. The neck may be extended or not while in flight, depending on the species.

Filed Under: Birds Tagged With: , , , , , , , , , , , , , , , ,

A quick lesson in wetland ecology

May 8, 2012 by 2 Comments

May is National Wetlands Month, so what better time to get creative in sharing how much I appreciate wetlands? Here is a new graphic with an overview of 1) four main types of wetlands and 2) why wetlands are important.

Wetlands are important because they:

… reduce damage from floods.
… protect land from storm surges.
… improve the quality of our water.
… can sustain a wide variety of plants and animals.
… can slow shoreline erosion.
… can provide vital food for many commercial & recreational fisheries.
… may provide a sustainable source of valuable timber.
… many rare and endangered species call them home.
… provide animals important shelter from encroaching humans.
… moderate stream flow.
… recharge groundwater supply.

Different types of wetlands:

Marshes are fed by groundwater or surface water. Marshes are dominated by soft-stemmed vegetation. Marshes are pH neutral and, therefore are abundant with plants and animals. Marshes can be freshwater or saltwater, tidal or inland. Other common names for marshes may include: prairie potholes, wet meadows, vernal ponds.

Swamps are dominated by woody-plants that can tolerate a rich, organic soil covered in standing water. This may include trees such as the cypress, cedar, or mangrove. Swamps may also be dominated by shrubs such as the buttonbush. Swamps are fed by groundwater or surface water, which is important for ecology, of course also learning about carbon footprint and the companies that have carbonclick projects can be helpful to help the environment as well.

Bogs are fed by precipitation and do not receive water from nearby runoff, such as streams or rivers. Bogs are dominated by a spongy peat deposit and the floor is usually covered in sphagnum moss. Bogs have acidic water and are low in nutrients making them a difficult place for plants to thrive.

Fens are peat-forming wetlands and are fed by nearby drainage such as streams or rivers. Fens are high in nutrients with low acidic water. Fens are characterized by grasses, wildflowers, and sedges. Often parallel fens adjacent to one another will eventually create a bog.

For more information about anything in this post or in general about wetlands please check out this overview by the EPA or email info@beachchairscientist.com.

Filed Under: Animal Homes, Biodiversity, Conservation, Fish, Places Tagged With: , , , , , ,

Why we need Alternative B adopted for NPR-A

April 26, 2012 by Leave a Comment

Almost 30 years ago, Congress stated that the National Petroleum Reserve – Alaska (NPR-A) was an, “exceptional natural, fish, wildlife, scenic, cultural and historical values that warrant protection”. Situated not far from the Arctic National Wildlife Refuge, the NPR-A is now under a lot of scrutiny. As the largest federal land management unit in the nation (23 million acres, almost the size of Indiana!) the Bureau of Land Management has proposed 4 alternatives for its future.

The only one suitable for the habitat Congress hailed as exceptional 30 years ago, would be Alternative B.  Dr. Steve Zack, conservation scientist, for the Wildlife Conservation Society (WCS) – North America Program:

WCS is very encouraged to see in the planning process for western Arctic Alaska an alternative that will mean significant wildlife conservation through protection of key areas. The Bureau of Land Management`s plan for the largest public landscape in the United States, the National-Petroleum Reserve – Alaska, includes four alternatives, one of which is Alternative B. Alternative B sets aside from development the most important part of the world`s largest Arctic wetland, located around Teshekpuk Lake, and provides protection of the large landscapes across which hundreds of thousands of caribou migrate, including the Utukok Uplands region. We strongly feel that Alternative B, which categorizes areas critical for wildlife as unavailable for oil and gas leasing, balances energy development and wildlife protection in a landscape rich in both resources.

Polar bears, walruses, belugas, caribou, wolves, grizzly bears, and waterbirds all rely on the diverse habitat of the NPR-A to survive. Furthermore, for thousands of years there have been native communities living along the reserve. Please request to Secretary Salazar that these communities not be developed in order to maintain this sustainable lifestyle.

For some amazing images of the Utukok River Uplands (an area within the NPR-A) spend some time on this website. I think I’m ready to move after looking at these!

Filed Under: Conservation, People, Places Tagged With: , , , , , , ,

Shadowbox of seashore treasures

April 25, 2012 by 4 Comments

Today I am very excited to share with you an image created by one of my favorite photographers, Bekki Rich. She is based in Stone Harbor, N.J. (Cape May County) and enjoys “”Taking photos when the opportunity arises”. Many of her photographs feature playful patterns found along the coastline, as well as showcase her unique perspective of maritime mementos. The image below is one I was particularly drawn to because it encapsulates how Bekki collects and cherishes ocean muses wherever possible. For instance, in a cubbyhole in the shadowbox below (not in the shot) she tore a tiny piece of cardboard off a random soapbox because it had a poem she found inspiring. The poem reads:

“A childhood stroll along the beach,

The early-morning waves wash objects

Filled with history onto the sand.

Memory retains the morning light bathed in the air of the open seas

An immense calm descends”.

Author Unknown

Check out more of Bekki’s work here. I’ve also added her to my “Design | Beach Meditation” Pinterest board.

Filed Under: Inspiration, People, Random Fun! Tagged With: , ,

Dear Online Science Writing Community: A reminder for ‘call to actions’ because your perspective is priceless

April 24, 2012 by Leave a Comment

Journalists and colleagues are not the only ones reading your blog posts. The internet is home to where our nation’s kids are uncovering the answers to homework. But, they are also using the internet to learn more on what sparked their curiosity whilst investigating the world beyond-the-monitor. As an unanticipated consequence your amazing fact-filled posts, peppered with personal experience, are inspiring a new generation into fields in science, technology, engineering, or mathematics (STEM). It does not seem as though this is news to anyone since the response to the contributions of ‘This is What a Scientist Looks Like’ is amazing! More to my point – I ask you – the estimable Online Science Writing Community – to take advantage of the influence you have on the impressionable youths of this wonderful planet while sharing your knowledge online. Like it or not – they’re reading, but the good news is that they’re remembering and sharing what they read.

Sure your research is sent off to decisions makers to be reviewed. What if we also cut out the middle man and used your own voice to affect change? You’ve exposed surprising evidence that things we could do or don’t do day-to-day would vastly improve our lives and give our planet a more sustainable future. I’d be so much more apt to listen to a blogger than someone who was telling me that I had to do something because it’s now a law or a mandate. Even if this is something that you already do from time-to-time – keep doing it because your perspective is priceless. And if you don’t – why not?

Much of the advice that Nancy Baron proposed to scientists interested in sharing their knowledge in her book, A Guide to Making Your Science Matter: Escape from the Ivory Tower, would translate well when communicating to, not only journalists and policy makers, but also teenagers, young adults, and the curious non-STEM professional public. For instance, “start thinking about what the journalist and his or her audience needs from you: clear, concise, conversational answers“, “Stepping outside your comfort zone to reach can have tremendous payoffs“, and “While dealing with backlash is no fun, many scientists agree that the end result is often worthwhile“.

Yes, this might mean you have to come up with a pseudonym because a grant would be pulled if you were contradicting a sponsor. But, often times having an opinion can be harmless.  Take the opportunity to not only feed the public’s thirst for education with with your own personal style, but also make gentle suggestions to mold the young audience into becoming environmentally-responsible citizen. My hidden agenda might not be much of a surprise here, but I am asking you – the Online Science Writing Community – to be an influential part the environmental education (EE) movement.

What is environmental education? To me, environmental education is a holistic approach of science in practicality. But, here are some more comprehensive definitions that encompass the concept.

  • Colorado Association of Environmental Education: Environmental education is a life-long learning process that increases awareness about the environment and its systems while developing critical-thinking skills that enable responsible decision-making.
  • Program, Classroom Earth: Environmental education is the process, activities and experiences—across disciplines—that lead students to have a greater understanding of how the earth’s resources and natural systems work and interact with each other and with human-made systems.
  • Program, Common Circle: Environmental education teaches people about the natural world and how their actions may affect it. This learning may take place in a formal classroom setting or the term may be used more broadly to describe efforts to inform the public about ecosystems and sustainable living.

Given also that the 5 principles of EE are awareness, knowledge, attitudes, skills, and participation (Tbilisi Declaration, 1997), it would seem as though any blogger with a bio that integrates 1) why you are passionate about your STEM field, 2) what led you to that field, and 3) how you’ve made an impact on the field would therefore be the perfect person to continue to share important outcomes to readers for the all-inclusive EE approach. I understand that often research cannot be shared until published, but I can say that I would be much more apt to make personal decisions about my day-to-day life from the responsible people that conducted the research rather from those that regurgitated it.

Thank you to all of the hard working scientists that share your lab and field adventures online. I will continue to be amazed by your dedication and conviction. You have a unique voice and a head full of ideas worth sharing. You have the ability to affect change and I remind you to take advantage of it.

“The ideal scientist thinks like a poet, works like a clerk, and writes like a journalist.” – E.O. Wilson

“It’s not what vision is, it’s what vision does.” Peter Senge, The Necessary Revolution

Filed Under: Conservation, People, Science Communication Tagged With: , , , , ,

5 (more) fun facts about seahorses

April 23, 2012 by Leave a Comment

Seahorse at the National Aquarium in DC

Seahorses are a fascinating species to observe. I took my nephew to the National Aquarium in DC this past weekend and we were memorized by the  aquatic centaurian-like bony fish (pictured right).  I’ve written about seahorses in the past, and from the traffic of that post I can tell that a seahorse post is much appreciated by the BCS readers, so I thought I’d take a some time to delve into more of their hallmark traits.

Here are  5 more fun facts about seahorses to add to the list (written almost 3 years ago!). Please feel free to comment below or email info@beachchairscientist.com if you have something you’d love to share about seahorses!

  1. The genus name of the approximately 35 species of seahorses is ‘Hippocampus’. ‘Hippo’ is Greek for ‘horse’ and ‘kampos’ is Greek for ‘sea monster’. The cross section of the hippocampus in our brain is shaped like a seahorse.
  2. For over 400 years many Eastern cultures have been using seahorses in medicines to cure asthma, lower cholesterol, as well as prevent arteriosclerosis.
  3. Seahorses uses their strong prehensile tail to grasp onto sea grasses and other stable plants. They are decent (not strong) swimmers and use their snout to suck up food (plankton, as well as tiny fish and shrimp).
  4. Often storms are a threat to adult seahorses as they will pull the seahorse off its anchoring plant. Other natural threats can include sea turtles, sharks, rays, and tuna. A major non-natural threat are divers that like to scoop up seahorses for aquariums (although, many ‘seahorse ranches’ are popping up).
  5. Seahorses lack the scales that a ‘normal’ fish might have and instead have bony plates arranged as rings. The bony plates are very similar to that of the Stegosaurus. Each seahorse species has a unique number of rings.

If you want to learn more on seahorses (in particular – how humans have learned to immortalize them in artwork, literature, and myths),  I highly recommend getting your hands on a copy of Poseidon’s Steeed: The Story of Seahorse, From Myth to Reality by Helen Scales.

Filed Under: Bony Fishes, Fish Tagged With: , , , , ,

Merry Earth Day!

April 22, 2012 by Leave a Comment

And, for some more Earth Day cartoons please visit The Daily Green.

Filed Under: People, Random Fun! Tagged With: , ,

A naturalist’s must-see destination: Cape May County (and, the rest of south Jersey)

April 20, 2012 by 2 Comments

Earlier this year I was happy to see that the federal government had awarded New Jersey a $1 million grant to protect the ecologically sensitive wetlands in Cape May County (“Where Nature Smiles for 30 Miles” and where my hometown is located). The New Jersey Department of Environmental Protection (DEP) will use the money to purchase 140 acres to add to the existing 17,000-acre Cape May Wetlands Wildlife Management Area. These wetlands are not only where I fell in love with the natural world, but are also home to many species of migratory birds and act as a nursery for many commercially important species of fish that spawn in the estuaries.

So with a combination of my pride in the DEP’s award and my feelings that an ‘ode to home’ in the Where We Live series is long overdue, I decided to take the time to compile a list of “10 unique and interesting natural history or maritime features of south Jersey”. I am sure there are plenty more out there, so please feel free to comment below or send me an email at info@beachchairscientist.com if you have any additional comments or questions.

1. South Jersey sits to the east of the Delaware Bay. The Delaware Bay boasts the second-highest concentration of shorebirds in North America (second to Quivira, Kansas which is mid-point in the United States). The Bay is mid-point in travel for many birds that travel from the warm weather of South America up to the Arctic. The Bay is also a perfect wintering habitat for many species of songbirds and waterfowl.

2. The world’s largest population of Atlantic horseshoe crabs (Limulus polyphemus) spawn in Delaware Bay.

3. At the entrance of the Delaware Bay is the Cape May Lighthouse, built in 1859, which documents the beginning of Cape May County’s nautical history. There is also the Hereford Inlet Lighthouse, built in 1874, on the Atlantic Ocean side of the Cape May County peninsula in North Wildwood. Speaking of Cape May, the famous Cape May diamonds people have been looking for since the 1880’s are actually quartz crystals that wash up as smooth rock.

4. At 3800 Boardwalk Mall in Wildwood you can see the 43rd Wyland Whaling Wall, “Humpbacks off the Jersey Coast” (pictured right). Wyland is known as “one of America’s most unique creative influences, and a leading advocate for marine resource conservation”.

5. The A.J. Meerwald, New Jersey’s official Tall Ship, began life as a sailing schooner built for oystering,  but was commandeered during World War II to serve as a fireboat on the Delaware Bay.

6. The Stone Harbor Point is one of the few parcels of New Jersey’s coast that has not been stabilized (86% of the shoreline has been stabilized) leaving a remarkable wide open space that has been shaped (and reshaped) by waves and tides for centuries. It also has one of the last thickets of bayberry left on New Jersey’s coast.

7. The Marine Mammal Stranding Center in Brigantine has the impressive achievement of responding to over 3,900 strandings of whales, dolphins, seals, and sea turtles (all, of course, done with a permit and authorization from the state and federal governments).

8. In south Jersey you’ll also find the Pine Barrens, a distinctive natural area spanning over  1 million acres of the Outer Coastal Plain (pictured left) in southern and central New Jersey. Dr. Witmer Stone, an early New Jersey natural scientist described the area as “always sandy and thickly covered with more or less scrubby vegetation, interspersed with swamps and infested by hordes of mosquitoes”. This area is particularly prone to fires and some species, such as the rare pygmy Pitch Pine, have become adapted to the fires and count on the fires to reproduce. The sandy soil of the Pine Barrens is sometimes referred to as sugar sand.

9. Blueberries were officially named the state fruit in 2004. New Jersey produces the second most blueberries in the world (Maine is first). Hammonton is considered the “Blueberry Capital of the World”.

10. After the federal government designated the Outer Coastal Plain as an American Vinticultureal Area, south Jersey started up on the wine trend! Now south Jersey has more than 20 fully functioning wineries and vineyards.

As Jacques Cousteau said, “People protect what they love“. I am sure you can tell from this blog that I do love the ocean. This love no doubt came from growing up in south Jersey and spending time everyday at the beach or the nearby Bay.  Here’s a poem I wrote (almost 12 years ago) about the area. I hope you’re inspired to learn about the natural history of your own area – especially on this upcoming Earth Day weekend.

Cheers!

Filed Under: Atlantic Horseshoe Crab, Beach, Biodiversity, Places Tagged With: , , , , , , , , , , , ,

How do fish give birth? Revisited

April 19, 2012 by Leave a Comment

From time to time, I like to revisit the more popular posts and present either new material or the material in a new format. Below is a simplified understanding of the three general ways that fish give birth (i.e., Within each category below there are sub-categories that I did not get into here). Please feel free to comment below or send me an email at info@beachchairscientist.com if you have any additional questions.

Filed Under: Bony Fishes, Fish, Sharks, Skates and Rays Tagged With: , , , , , , , , , , , , ,

What are the fastest fish in the sea?

April 18, 2012 by 6 Comments

Not too long ago, I provided an update on the fastest fish in the sea, the Indo-Pacific sailfish (Istiophorus platypterus). I thought it would be interesting to do some research on how fast this fish is in comparison to other animals on land and in the sea and create a graphic to illustrate it.  First, some notes, there are some outliers I left off the chart. For instance, the Peregrine falcon (Falco peregrinus) at 325 miles per hour (mph), as well as pretty much the entire family of swifts (Apodidae) averaging a 106 mph flying speed. Also, I am certain there are many other species of terrestrial and flying animals that can be included in this list, I only added a few to compare. Please feel free to comment below or send me an email at info@beachchairscientist.com if you have something to add to the list!

THE LIST

Peregrine Falcon (Falco peregrinus) 200 mph
Swift (Apodidae) 106 mph
Sailfish (Istiophorus platypterus) 70 mph
Cheetah (Acinonyx jubatus) 70mph
Pronghorn antelope (Antilocapra americana) 61 mph
Striped marlin (Tetrapturus audax) 50 mph
Wahoo (Acanthocybium solandri) 48 mph
Southern blue fin tuna (Thunnus maccoyii) 47 mph
Yellow fin tuna (Thunnus albacares) 46 mph
Blue shark (Prionace glauca) 43 mph
Ostrich (Struthio camelus) 43 mph
Bonefish (Albula vulpes) 40 mph
Swordfish (Xiphias gladius) 40 mph
Tarpon (Megalops cyprinoides) 35 mph
Tiger shark (Galeocerdo cuvier) 33 mph
Hawk moth (Sphingidae) 33 mph
Human (Homo sapiens) 27 mph

For more information I recommend The Travel Almanac and The Top 10 List.

Filed Under: Bony Fishes, Fish, Random Fun!, Sharks, Test Your Knowledge Tagged With: , , , , , , , , , , , , , ,