You walk alone by the waters of Cayuga Lake in Stewart Park, nestled in the heart of Ithaca’s Finger Lakes, where Salix alba, the white willow, stands proudly along the shoreline. You’re immediately drawn to the flurry of yellow flowers, a stark contrast to the still chilly early March air.
The white willow (Salix alba), with its rough, gray bark, is beginning to dress in its spring finery, its branches teeming with tiny, starburst-like flowers. Each one is a miniature sun, casting a glow against the intricate lattice of branches. These aren’t the soft catkins of the pussy willow but the yellow inflorescences that are characteristic of the white willow’s early bloom, a signpost that winter’s grip is loosening.
These trees, you learn, are dioecious, with separate male and female trees. The blossoms you see are likely the male flowers, their stamens dusting your fingers with pollen as you brush against them. It’s this pollen that will soon beckon the bees, urging them to emerge from their hives and begin the work that sustains the ecosystem. You can almost hear the faint buzz, a prelude to the symphony of life that summer will bring. Return in midsummer to find the female catkins comprise numerous small (4 mm) capsules, each containing numerous minute seeds embedded in silky white hairs, which aids wind dispersal.
As you wander further, you note the presence of the white willow’s kin, other deciduous companions some still bare and stretching into the sky and others leafing out. You stand there, at the cusp of seasonal change, where the slumbering trees are on the verge of awakening, and you feel a kinship with them. Like these trees, you have weathered the cold, dark months, and now you stand poised to greet the renewal that comes with spring.
The stark, knotted forms of the white willow branches against the clear sky speak to you of endurance and resilience. These trees have weathered storms and droughts; they have been companions to the lake, mirrors to its moods, and now they are beginning to celebrate the cycle of rebirth and growth.
You take a seat on a bench, the cool wood through your clothes a reminder of the lingering winter. You gaze out across the lake, the water reflecting the brilliance of the sun like a vast, rippling mirror, framed by the elegant silhouettes of the white willows. You feel the peace of the park seep into you, the slow, rhythmic lapping of the water syncing with your breath.
This is a moment of transition, from the sleeping to the awakening world. You think about the Salix alba, how its presence here is a testament to nature’s adaptability, thriving in the moist soil by the lake, offering shade in summer and shelter in winter, its branches a playground for the winds.
As you leave Stewart Park, you take with you the memory of the white willows in early March, the quiet guardians of Cayuga Lake. They remind you of the enduring beauty of nature, the seamless flow from one season to the next, and the quiet joy of standing witness to the first whispers of spring on the shores of the Finger Lakes.
Copyright 2024 Michael Stephen Wills All Rights Reserved
If you ever feel like you’re struggling with independence, just remember these creatures who start life with the ultimate “figure it out yourself” kit.
Introducing the “Self-Service Buffet” of the animal kingdom, where the motto is “Hatch, Birth, Good Luck!” These creatures don’t stick around for cuddles or parenting classes:
Sea Turtles – The Ultimate Sand Sprinters: These little guys burst from their eggs and make a mad dash for the ocean, dodging seagulls and crabs. It’s like the world’s most stressful obstacle course, where the prize is simply survival.
Salmon – Swimmers on a Solo Mission: After hatching, young salmon are on their own, navigating the perilous waters without a GPS or even a pep talk. They’ve got more instinct in their little fins than most of us have in our entire body!
Praying Mantises – The Loner Ninjas: These insects hatch ready to rumble, with no parental guidance on how to be the ultimate predator. It’s a tough world where your siblings might just see you as their first meal. Talk about family drama!
Kangaroo Rats – Desert Hoppers Inc.: Born in the harsh desert, these tiny rodents are all about the solo journey from the get-go. No room service or guided tours here; just a lot of hopping and hoping.
Octopuses – The Brainy Solitaires: Octopus moms are the epitome of “do it yourself,” laying their eggs and then, well, signing off. The babies hatch fully equipped with all the smarts and skills they need, making them the envy of every overbooked parent.
Komodo Dragons – The Scaly Independents: These formidable lizards hatch ready to take on the world, with a fierce look in their eye that says, “I didn’t choose the dragon life, the dragon life chose me.”
Butterflies – The Winged Wanderers: From caterpillar to chrysalis, and then to butterfly, these creatures do it all on their own. If butterflies had social media, their status would perpetually be “Just transformed. Who dis?”
A Monarch butterfly freshly emerged from the chrysalis after expanding its crumpled wings.
So, if you ever feel like you’re struggling with independence, just remember these creatures who start life with the ultimate “figure it out yourself” kit. They might just inspire you to tackle your own obstacles – though hopefully, with fewer predators involved.
Copyright 2024 Michael Stephen Wills All Rights Reserved
Witness a duel not of might, but of vibrant melodies between the cardinal and song sparrow. This 14-second video captures a fleeting yet profound moment in the Finger Lakes’ springtime chorus. Join us in unraveling the significance behind this avian serenade.
In the serene backdrop of the Finger Lakes in upstate New York, an enchanting encounter unfolds as the first whispers of spring touch the air. It’s March 14th, a day that marks the gentle shift from the silent, introspective winter to the lively, expressive season of spring. On this day, a captivating spectacle takes place — a duel not of might, but of melody. Two distinguished songbirds, a male cardinal (Cardinalis cardinalis) with its vibrant red plumage that seems to capture the very essence of life itself, and a male song sparrow (Melospiza melodia), modest in color yet profound in voice, engage in an early springtime symphony.
This 14-second video, garnished with brevity, captures a fleeting moment in nature’s grand concert, where these feathered musicians compete, not for supremacy, but for the sheer joy of song and the chance to herald the new season. The cardinal, with its rich, whistling tunes, fills the air with a repertoire of songs that resonate with the promise of new beginnings. Meanwhile, the song sparrow, with its intricate melodies that vary dramatically from bird to bird, offers a counterpoint that is both complex and captivating.
This auditory duel, set against the tranquil beauty of the Finger Lakes, is more than just a display of vocal prowess. It’s a ritual that speaks to the heart of nature’s cycle, a testament to the resilience and adaptability of these species. As these songbirds vie for the attention of mates and assert their presence in the spring landscape, they also remind us of the enduring beauty and mystery of the natural world. You’ll also catch the call of a crow and, in the distance, another Cardinal.
This moment, brief yet infinitely rich, invites us to pause and listen, to lose ourselves in the simple yet profound joy of birdsong. It’s a reminder that, even in the quietest corners of the world, life thrums with vibrancy and the promise of renewal. Join us as we delve into the story behind this melodic encounter, exploring the significance of song in the lives of these birds and the heralding of spring in the Finger Lakes.
Copyright 2024 Michael Stephen Wills All Rights Reserved
Ever wondered about the iconic robotic arms that gracefully danced in space, tethered to the Space Shuttle? Meet Canadarm, a marvel of engineering that transformed space missions. Born from a NASA invitation to Canada in 1969, this robotic arm did more than just move payloads; it became a symbol of international collaboration in space exploration. After the Columbia disaster, its role expanded, ensuring the safety of astronauts with critical inspections. Dive into the captivating journey of Canadarm, where technology meets the stars. Click to discover how a Canadian innovation became a pivotal part of space history.
The Canadarm is here extended in the foreground and docked in background
The Canadarm, or Canadarm1, officially known as the Shuttle Remote Manipulator System (SRMS) and sometimes referred to as the SSRMS, represents a series of robotic arms utilized aboard the Space Shuttle orbiters. These arms were instrumental in deploying, manipulating, and retrieving payloads. Following the tragic Space Shuttle Columbia disaster, the use of Canadarm became invariably linked with the Orbiter Boom Sensor System (OBSS). The OBSS played a crucial role in examining the shuttle’s exterior for any damages to its thermal protection system, enhancing the safety of subsequent missions.
The genesis of Canada’s involvement in the Space Shuttle program dates back to 1969 when the National Aeronautics and Space Administration (NASA) extended an invitation to Canada. At the outset, the specifics of Canada’s role were unclear, though the need for a manipulator system was immediately recognized as vital. The Canadian firm DSMA ATCON had previously made strides in robotics with the development of a robot designed to load fuel into CANDU nuclear reactors, capturing NASA’s interest. By 1975, a formal agreement was reached between NASA and the Canadian National Research Council (NRC), under which Canada would undertake the development and construction of the Canadarm.
The NRC subsequently awarded the contract for the manipulator to Spar Aerospace (currently known as MDA), under which three distinct systems were to be developed: an engineering model to aid in design and testing, a qualification model for environmental testing to ensure the design’s suitability for space, and a flight unit destined for use in missions. This collaborative effort marked a significant milestone in the use of robotics in space exploration, showcasing international cooperation in advancing space technology.
Copyright 2024 Michael Stephen Wills All Rights Reserved
Imagine yourself floating in the vast cargo bay of the Space Shuttle Atlantis, surrounded by the essentials of space exploration. Here, in this dynamic space, the dreams of astronauts and scientists converge, where each mission reshapes our understanding of the universe. Curious? Discover more inside.
The cargo bay of the Space Shuttle Atlantis was an extensive, empty compartment located at the shuttle’s aft end, acting as the main storage area for mission payloads. A significant portion of the cargo was housed within a sizable cylindrical module named Raffaello, which contained a year’s supply of necessities—food, clothing, water, replacement parts, and scientific gear.
The dimensions of the payload area were roughly 4.6 meters (15 feet) in width and 18 meters (60 feet) in length. This spacious area enabled the shuttle to transport a diverse array of payloads, ranging from satellites to complex scientific experiments.
Exploring the Cargo Bay
Envision yourself drifting through the cargo bay of Atlantis, encircled by a maze of wires, equipment, and neatly arranged payloads. Astronauts, tethered securely and clad in their voluminous space suits, would navigate this area, ensuring the payloads were fastened correctly for either launch or retrieval operations.
The cargo bay’s configuration was highly adaptable, tailored to meet the specific needs of each mission. It played a pivotal role in the deployment of satellites, execution of repairs, or the transportation of scientific apparatus, adapting its setup as necessary.
The Hubble Servicing Mission
One of the most notable missions involving Atlantis was the Hubble Space Telescope Servicing Mission 4 (SM4). For this mission, Atlantis was loaded with essential items for the Hubble, including new instruments, batteries, and gyroscopes, all carefully organized within the cargo bay for safe transport to and into orbit.
Legacy
The cargo bay of Atlantis bore witness to a myriad of significant events: the release of satellites, the construction of the International Space Station, and numerous scientific investigations. Its design and flexibility were instrumental to the Space Shuttle program’s achievements.
Copyright 2024 Michael Stephen Wills All Rights Reserved
In February 2020, I captured images of the first flowers to bloom on their property with a Canon 5D Mark IV DSLR and a macro lens. The flowers belong to the Eranthis genus, known for early flowering.
These flowers are the first to bloom on our property, around the magnolia tree, and are also the first wildflowers photographed with my then new Canon 5D Mark IV dslr . Each year these “buttercups” grow thicker and spread. The latin scientific name Eranthis hyemalis proclaims the early nature of its flowering both in the genus, “Eranthis” – composed of two Greek language roots meaning “spring flower”, and species, “hyemalis” – a term from the Latin language meaning, “winter flowering.” The genus encompasses eight species, all early flowering plants with the common name winter aconite. These can also rightly be called Buttercups as the plant belongs to family Ranunculaceae, buttercups.
To capture the intricate details possible with the Canon EF 100 mm f/2.8 Macro lens I used here, it’s often necessary to adjust the camera settings to allow for a longer exposure time. This adjustment ensures that enough light reaches the sensor, particularly in macro photography or low-light situations, which helps in producing sharper and more detailed images. All these photographs are from f25. Setting a longer exposure compensates for the reduced light that might be a consequence of using a smaller aperture (higher f-number) for greater depth of field, a common technique in macro photography.”
It’s important to note that while setting a longer exposure can improve image quality by allowing more light to hit the camera’s sensor, it can also introduce the risk of motion blur if the camera or subject moves during the exposure. To minimize camera shake and achieve the best results, I used a Manfrotto “BeFree” tripod and the camera’s built-in timer set to a 2 second delay after a manual shutter release.
With the thermometer hovering above freezing, these blooms did not open today. The calendar says “late winter”, these Aconite are singing “early spring.”
Reference: Wikipedia “Eranthis hyemalis” and “Eranthis.”
Copyright 2024 All Rights Reserved Michael Stephen Wills
Step beyond Earth’s bounds and glimpse the astounding intricacies of the Space Shuttle’s journey. Discover the engineering marvels that propelled humanity into orbit and back, navigating the cosmos with precision. Unveil the secrets of the stars now.
The Space Shuttle, officially known as the Space Transportation System (STS), was an iconic spacecraft operated by NASA from 1981 to 2011. It consisted of an orbiter with wings for landing like an airplane, external fuel tanks, and solid rocket boosters. With its multiple missions ranging from satellite deployment to the construction of the International Space Station, the Space Shuttle was a symbol of human ingenuity in space exploration. Central to the Shuttle’s success was its navigational system, which combined state-of-the-art technology of its time with human expertise.
The navigation of the Space Shuttle was a complex orchestration involving both internal and external elements designed to work in the harsh environment of space. The photographs attached illustrate some of the external navigational elements.
External Navigational Elements
The external surface of the Space Shuttle, as seen in the following images, was covered with thousands of thermal protection system tiles. These tiles were crucial not only for protecting the Shuttle from the extreme temperatures experienced during re-entry into Earth’s atmosphere but also housed the critical sensors for navigation.
Reaction Control System (RCS)
One of the key external navigational features was the Reaction Control System (RCS), seen as clusters of small circular ports below the cockpit windows. The RCS was composed of small thrusters that could fire in short bursts to adjust the Shuttle’s orientation or speed in space. This system was vital during the maneuvers in orbit, such as satellite deployment, docking with the International Space Station, and repositioning for re-entry into Earth’s atmosphere.
Internal Navigational Elements
Internally, the Space Shuttle featured a complex avionics system. The following image depicts part of the orbiter’s internal structure with an array of docking mechanisms and sensor housings. The round port, surrounded by a ring of bolts, is likely an interface for the Orbiter Docking System, used for rendezvous and docking with the International Space Station.
The following image shows a close-up of one of the orbiter’s windows, surrounded by reinforced panels. Each window was crucial for manual navigation, allowing astronauts to visually confirm their orientation and position relative to celestial objects and the Earth. The windows were also essential during landing, which was conducted manually by the Shuttle’s commander.
Navigational Avionics
The Shuttle’s navigation was supported by an avionics system that included inertial measurement units (IMUs), star trackers, and various other sensors. IMUs tracked the Shuttle’s position by measuring its velocity and direction, while star trackers used sightings of known star patterns to calibrate the Shuttle’s orientation in the vastness of space.
The navigational computers onboard processed data from these systems to maintain the trajectory and manage the Shuttle’s multiple systems. The computers were capable of autonomous operation, although astronauts were trained to take over manually if necessary.
Ground Support and Telemetry
In addition to onboard systems, navigation relied heavily on ground-based tracking and data relay satellites. The Shuttle communicated with NASA’s Mission Control Center, which monitored its position and trajectory, providing updates and corrections as needed. Telemetry data sent back to Earth included velocity, altitude, and engine performance metrics, which were crucial for ensuring the Shuttle’s safe passage in and out of orbit.
In Summary
The Space Shuttle’s navigational capabilities were a testament to the integration of technology and human skill. From the RCS ports on its tiled exterior to the sophisticated avionics inside, every component played a critical role in the Shuttle’s missions. This harmonious blend of internal mechanisms and external sensors, complemented by vigilant ground support, enabled the Space Shuttle to navigate the cosmos and return safely home, mission after mission.
Copyright 2024 Michael Stephen Wills All Rights Reserved
Peer through the Space Shuttle’s windows, marvels of human ingenuity that withstood the cosmos’s extremes. Experience the awe of Earth’s view from orbit and the intense blaze of re-entry, all behind the clarity of fused silica glass. Dive into the fusion of science and exploration—read the full voyage of these extraordinary panes.
The windows of the Space Shuttle represent a pinnacle of engineering and material science, intricately designed to withstand the harsh realities of space travel while providing astronauts with a vital connection to the outside universe. The journey of these windows, from concept to creation and through their performance in the harsh environment of space, is a testament to human ingenuity and the relentless pursuit of exploration.
At the heart of the Space Shuttle’s windows is fused silica glass, a material selected for its exceptional properties, including high thermal resistance, strength, and optical clarity. This choice was crucial, as the windows had to endure rapid temperature shifts from the cold vacuum of space to the searing heat of re-entry, which could exceed 1,650 degrees Celsius (3,000 degrees Fahrenheit). Corning Incorporated, known for its innovative glass solutions, was responsible for manufacturing this fused silica, utilizing a high-purity synthesis process that ensured the material could withstand the extreme conditions of space without degrading.
The design and assembly process of the Shuttle’s windows was a feat of engineering. Each window was carefully framed and installed to maintain the spacecraft’s integrity and internal pressure in the vacuum of space. This involved a complex sealing mechanism that had to be both robust and fail-safe, ensuring the safety of the crew and the success of the mission. The installation process was rigorous, involving a series of tests that simulated the harsh conditions of space to validate the windows’ performance. These tests were crucial to identifying and rectifying any potential issues that could compromise the mission or the astronauts’ safety.
In space, the Shuttle’s windows faced numerous challenges, from the threat of micrometeoroid impacts to the intense radiation of the sun. Despite these hazards, the windows performed admirably, a testament to their design and the materials used. One notable instance of their resilience was observed during the STS-61 mission, where despite micrometeoroid impacts, the windows’ integrity remained intact, ensuring the crew’s safety and mission success.
The windows also played a critical role during the Shuttle’s re-entry into Earth’s atmosphere, a phase of the mission that subjected the spacecraft to extreme heat. The windows’ ability to withstand this heat while providing the crew with a clear view for navigation was vital for a safe landing. This was achieved through the use of multiple glass layers and protective coatings, which insulated the interior from the re-entry heat.
Beyond their technical specifications and performance, the Space Shuttle’s windows served a more profound purpose. They provided astronauts with a visual connection to the Earth and space, offering perspectives that few humans have experienced. These views not only aided scientific observation and mission operations but also offered moments of unparalleled beauty, inspiring both astronauts and people on Earth.
The legacy of the Space Shuttle’s windows extends beyond their technical achievements, embodying the spirit of exploration and the human quest for knowledge. They were not merely components of a spacecraft but windows to the universe, enabling us to look beyond our planet and dream of the possibilities that lie in the vast expanse of space. Through their resilience, clarity, and performance, the Space Shuttle’s windows stand as a symbol of human ingenuity, a small but significant part of our journey to the stars.
Copyright 2024 Michael Stephen Wills All Rights Reserved
Discover an insider’s voyage to the heart of NASA’s launch operations with us as we relive the awe-inspiring Kennedy Space Center Tour, where every corner whispers tales of cosmic ventures and human courage.
Late winter 2017 my wife Pam and I embarked on an extraordinary adventure that would etch an indelible mark on our memories. On March 2nd, we had the unique privilege of experiencing the Kennedy Space Center through the eyes of a NASA Launch Director. This wasn’t just any tour; it was a journey through the heart of space exploration, a narrative brought to life by someone who had been at the helm of launching dreams into the cosmos.
The Kennedy Space Center, a beacon of human achievement on Florida’s coastline, stood before us, brimming with stories of courage, innovation, and the relentless pursuit of the unknown. As we stepped onto the grounds, we were not just visitors but participants in a legacy stretching back to the earliest days of space travel. The “NASA Launch Director Tour” promised an inside look at the complexities and triumphs of space missions, a perspective few ever witness.
This series of blog posts is an attempt to capture the essence of that day, to share the insights, emotions, and awe-inspiring moments we experienced. From the thunderous silence of the launch pads to the intimate stories of missions past, each post will explore a different facet of our journey. Join us as we relive an unforgettable exploration of human ingenuity and the boundless reaches of space, all through the lens of a day that brought the stars within reach.
Gathering and Introductions
On the negative side, we enjoyed the expertise of “Jeff” who stood in for the retired Launch Director who was “out sick.” On the positive side, our very expensive fee for the tour was refunded. Jeff was everything we could expect from the tour — he had extensive and detailed insider knowledge of NASA and the launch facilities.
Jeff, our substitute guide Shuttle Booster and Fuel Tank, standing belowCarl Sagan QuoteCarl Sagan Quote and familyShuttle Booster and Fuel Tank, an typical adult human would parbely reach the first orange “O” ring
We gathered in a media room, an antechamber to the Space Shuttle Atlantis.
Entry to the Atlantis and the
Space Shuttle Atlantis lifted off on its maiden voyage STS-51-J on October 3, 1985. This was the second shuttle mission that was a dedicated Department of Defense mission. It flew one other mission, STS-61-B (the second shuttle night launch) before the Challenger disaster temporarily grounded the shuttle fleet in 1986. Among the five Space Shuttles flown into space, Atlantis conducted a subsequent mission in the shortest time after the previous mission (turnaround time) when it launched in November 1985 on STS-61-B, only 50 days after its previous mission, STS-51-J in October 1985. Atlantis was then used for ten flights from 1988 to 1992. Two of these, both flown in 1989, deployed the planetary probes Magellan to Venus (on STS-30) and Galileo to Jupiter (on STS-34). With STS-30 Atlantis became the first Space Shuttle to launch an interplanetary probe.
The orbiter’s aluminum structure could not withstand temperatures over 175 °C (347 °F) without structural failure. Aerodynamic heating during reentry would push the temperature well above this level in areas, so an effective insulator was needed.
The Thermal protection system (TPS) covered essentially the entire orbiter surface, and consisted of seven different materials in varying locations based on amount of required heat protection:
–Reinforced carbon–carbon (RCC), used in the nose cap, the chin area between the nose cap and nose landing gear doors, the arrowhead aft of the nose landing gear door, and the wing leading edges. Used where reentry temperature exceeded 1,260 °C (2,300 °F).
Reinforced carbon–carbon (RCC) of the nose cap and “chin area”
–High-temperature reusable surface insulation (HRSI) tiles, used on the orbiter underside. Made of coated LI-900 silica ceramics. Used where reentry temperature was below 1,260 °C. –Fibrous refractory composite insulation (FRCI) tiles, used to provide improved strength, durability, resistance to coating cracking and weight reduction. Some HRSI tiles were replaced by this type. –Flexible Insulation Blankets (FIB), a quilted, flexible blanket-like surface insulation. Used where reentry temperature was below 649 °C (1,200 °F).
–Low-temperature Reusable Surface Insulation (LRSI) tiles, formerly used on the upper fuselage, but were mostly replaced by FIB. Used in temperature ranges roughly similar to FIB. –Toughened unipiece fibrous insulation (TUFI) tiles, a stronger, tougher tile which came into use in 1996. Used in high and low temperature areas. –Felt reusable surface insulation (FRSI). White Nomex felt blankets on the upper payload bay doors, portions of the mid fuselage and aft fuselage sides, portions of the upper wing surface and a portion of the OMS/RCS pods. Used where temperatures stayed below 371 °C (700 °F). Each type of TPS had specific heat protection, impact resistance, and weight characteristics, which determined the locations where it was used and the amount used.
The shuttle TPS had three key characteristics that distinguished it from the TPS used on previous spacecraft:
Reusable Previous spacecraft generally used ablative heat shields which burned off during reentry and so could not be reused. This insulation was robust and reliable, and the single-use nature was appropriate for a single-use vehicle. By contrast, the reusable shuttle required a reusable thermal protection system. Lightweight Previous ablative heat shields were very heavy. For example, the ablative heat shield on the Apollo Command Module comprised about 15% of the vehicle weight. The winged shuttle had much more surface area than previous spacecraft, so a lightweight TPS was crucial. Fragile The only known technology in the early 1970s with the required thermal and weight characteristics was also so fragile, due to the very low density, that one could easily crush a TPS tile by hand.
Reinforced carbon–carbon (RCC) of the nose cap, close-up
The Space Shuttle thermal protection system (TPS) is the barrier that protected the Space Shuttle Orbiter during the searing 1,650 °C (3,000 °F) heat of atmospheric reentry. A secondary goal was to protect from the heat and cold of space while in orbit.
During the launch of STS-27 in 1988, a piece of insulation shed from the right solid rocket booster struck the underside of the vehicle, severely damaging over 700 tiles and removing one tile altogether. The crew were instructed to use the remote manipulator system to survey the condition of the underside of the right wing, ultimately finding substantial tile damage. Due to the classified nature of the mission, the only images transferred to the mission control center were encrypted and of extremely poor quality. Mission control personnel deemed the damage to be “lights and shadows” and instructed the crew to proceed with the mission as usual, infuriating many of the crew. Upon landing, Atlantis became the single-most-damaged shuttle to successfully land. The survival of the crew is attributed to a steel L band antenna plate which was positioned directly under the missing tile. A similar situation would eventually lead to the loss of the shuttle Columbia in 2003, albeit on the more critical reinforced carbon-carbon.
References: extensive sections of the following Wikipedia articles were quoted, "Space Shuttle thermal protection system," "Space Shuttle Atlantis."
Copyright 2024 Michael Stephen Wills All Rights Reserved
The exposed mudflats on tidal wetlands attract a variety of shorebirds. Shorebirds are seasonal residents that make long migratory journeys between their breeding grounds in the Arctic and their wintering areas in South America. Merritt Island NWR provides an important resting and feeding area for this group of birds. Some stay for the winter, and others use the refuge as a fuel stop before continuing on their journey.
In tidal areas, shorebird feeding schedules are influenced by the cycle of the tides. Changes in tidal cycles expose foraging areas in mudflats for a period during the day. At other points during the cycle, the water in these same areas becomes too deep or the ground too dry for shorebirds to feed effectively.
Shorebirds of different species can and do forage together. Because bill length and shape varies from species to species, birds can pursue different prey in the same area at the same time without competing with each other. Because of varying bill lengths, the different bird species find their food at different depths in the substrate. Mixed species of shorebirds are a common sight.
Reference: the text of this blog was transcribed from signage along the Blackpoint Wildlife Drive of Merritt Island National Wildlife Refuge, Brevard County, Florida
Copyright 2024 Michael Stephen Wills All Rights Reserved.
