Showing posts with label ecosystem. Show all posts
Showing posts with label ecosystem. Show all posts

Saturday, July 6, 2019

My Kind of Fourth of July

While most folks enjoy fireworks spectacles and flag-waving on Independence Day here in the United States, I would rather turn on our backyard blacklight and see what comes to visit. The neighbors did have some surprisingly professional-looking explosions, albeit they are illegal here in the city of Colorado Springs. I did my best to tune-out the loud noise.

Ruddy-winged Dart, Euxoa mimallonis

The U.S. was founded by immigrants, and has prospered from ethnic, racial, and cultural diversity, though we seem to frown on "minorities" in our present political climate. Here under my ultraviolet light, I see plenty of biological diversity, a melting-pot of insects that makes the ecosystem run even more efficiently than capitalism fuels our economy. One cannot help but observe the similarities, though the niches in ecosystems are filled by a variety of species while niches in the economy are occupied by only one: Homo sapiens.

White miller caddisfly, Nectopsyche sp.

Nature does not recognize villains or criminals or classes or any other structure relevant to our human societies. Every species is equal, adapting as it is able to constantly-changing conditions of climate, habitat, and competition from other species. Yes, some immigrant insects do compete with native species for the same "job" in the ecosystem, that much is obvious.

Damsel bug, Nabis sp., with leafhopper prey

While some insects do come to the blacklight to prey on other insects, most coexist peacefully under the purple glow. Occasionally one will blunder into another, causing both animals to run erratically or fly abruptly, only to quickly settle again without armed conflict or undue protest. Still other insects make a brief appearance, flirting with my desire to take their picture. Sometimes I get the shot, often I do not.

Crambid moth, Pyrausta insequalis

Every color of the rainbow has arrived. White is among the rarest. There is green, red, yellow, orange, black, brown....There are plain, monochrome bugs, and those with patterns too intricate to imagine. The moths often lose their colors as the night wears on, the scales on their wings lost with each wingbeat, each collision with the abrasive netting protecting the blacklight, each collision with another insect. It does not hamper their flight in the least.

Ant-mimicking plant bug, Pilophorus sp.

This one night, our celebration of America's birthday, may also be an insect's final fling, its days as an adult all too brief, just long enough to find a mate and reproduce. Some moths flourish for only a week at most, sometimes even more briefly. They have spent the bulk of their lives as caterpillars, larvae that are feeding-and-growing machines. At the end of that worm-like stage they transform into the pupa. Apparently inert on the outside, the pupa is a frenzy of internal reorganization as cells are re-purposed, some genes are turned off, and other genes turned on. It is a microcosm of a rapidly-changing economy with employees re-trained, whole new industries born, with all the promise of positive change each would suggest.

Delphacid planthopper, Bostaera nasuta

Has my blacklight beacon derailed the destinies of these insects? Some will surely be diverted from their procreative goals, from their foraging missions if they feed as adults. I make a point of turning the light off before I, myself, turn in, to give the insects a chance to resume their lives without distraction, though in a city full of lights they may well end up concentrated at the neighbor's porch light, or a streetlight up the boulevard. It is a hazard of urban living for those insects that reside in cities.

Green lacewing, family Chrysopidae

At last the auditory noise has abated, and the attractiveness of the blacklight has reached a point of diminishing returns. I must sleep, and it will only be four or five hours until the sun peeks over the eastern horizon to put an end to the nocturnal adventures of these tiny arthropods. The summer days are long, the nights brief, and insects must make the most of that narrow window of darkness. The day shift will begin, and niches will transfer ownership accordingly. There is no timecard to punch, but there are no holidays, either, no middle management, just life, pulsing as it will.

Saturday, December 9, 2017

Losing the Pine Rocklands

It has not been my intent to deprive you of new content on this blog, but personal realities have dictated that I put my energies elsewhere, or have actively blocked my creative mindset. My internal motivations have been dealt devastating blows by external events that leave me wondering if I am making a difference. Meanwhile, I still deal with financial struggles and my aging father's circumstances.

The last (or at least latest) straw is what happened this week with U.S. Fish & Wildlife approving construction of a Walmart and strip mall on one of the last large parcels of imperiled pine rocklands habitat near Miami, Florida. Bulldozers began their devastation on Thursday, but thanks to a lawsuit by the Center for Biological Diversity, and a court order issued by heroic U.S. District Judge Ursula Mancusi Ungaro, the engines of destruction have been shut off, at least for the time being.

The Atala butterfly, © Jaret C. Daniels

This dire situation, to be fair, is the end result of poor management by a number of property players. According to Save The Pine Rocklands, the Richmond pine rockland tract was formerly owned by the University of Miami, which acquired the area for free as military surplus land, in 1981 and 1997. The university then sold eighty-eight acres, for $22 million, to Ram Realty Services in 2014. It is Ram that is behind the "Coral Reef Commons" project that would include a Walmart, LA Fitness, Chick-fil-A, and Chili's; plus a 900-unit apartment complex. A mere 40 acres would be spared as a "preserve."

Since this habitat depends on regular fire events for its existence, one has to wonder how apartment residents and business patrons would tolerate prescribed burns for ecosystem maintenance. That is not to mention whether the forty acres falls below some minimal territorial threshold for which a species could no longer survive. It also bears consideration whether pressure for continued economic development would not eventually compromise the rest of the property. You did it once, so you have set a precedent.

Miami Tiger Beetle, © Chris Wirth at Cicindela@wordpress.com

The pine rocklands are home to a diverse and unique assemblage of organisms, including critically endangered species. Among those are the Miami Tiger Beetle, Cicindelidia floridana, found nowhere else on Earth. The Atala (Eumaeus atala) and Bartram's Scrub-hairstreak (Strymon acis), both butterflies, also exist in no other ecosystem. Florida Bonneted Bat is also at risk. Thirty-one plant species occur there exclusively; and a total of nine federally endangered species call the pine rocklands home.

This is just the latest crime against our natural heritage as the President and his appointees go about dismantling all environmental, consumer, and labor protections for the benefit of an extreme minority of extremely wealthy individuals and corporations. This not politics, it is policy. Very, very bad policy that will negatively impact you, personally, at some point.

Bartram's Scub-hairstreak butterfly, courtesy of U.S. Fish & Wildlife Service and Biodiversity.org

The recent actions by the U.S. Department of the Interior, where the National Park Service and U.S. Fish & Wildlife agencies reside, have been decried as "dereliction of duty," but that is being too polite. This is outright theft of public lands and should be prosecuted as such. It is not failure to fulfill institutional mandates, it is criminal behavior.

I pride myself on presenting you with an unbiased, apolitical blog here, but I have my limits of tolerance. Those limits have been vastly exceeded over the last few months, and I do not foresee improvement any time soon. I hope you will respect my personal desire to protect your right to your "pursuit of happiness" as it involves observing and enjoying the natural world in intact ecosystems. I also urge you to stay silent no longer. Thank you.