Friday, October 30, 2020

Fruits of October

 

Apple, Malus sp.

A great many trees in the Apple family are suddenly apparent at Halibut Point in late summer and early fall, when their colorful fruit ripen. Most of these are self-sown descendants of orchard plantings from bygone day. No apples are native to the Americas, which explains Johnny Appleseed's legendary popularity in the westward settlements. The trees' ability to hybridize freely can easily lead to new fruit developments. The small sized ones pictured here might be classified as crabapples.

Shagbark hickory, Carya ovata


Maturing hickory nuts cause a good deal of excitement among the squirrels and chipmunks who scramble through the branches harvesting nuts even before they fall to the ground where turkeys, foxes and rabbits look for them. Any nuts overlooked by the harvesters from their winter food caches have a chance of sprouting to generate new trees at some distance from the parent.

Virginia Creeper, Parthenocissus quinquefolia


Virginia Creeper and Catbrier often clamber together over woody or rocky supports to reach for sunlight. These vines simultaneously produce dark blue fruit. The combination of Virginia Creeper berries on red stems against the decorous Catbrier leaves makes a pretty picture, above.

Poison Ivy, Rhus radicans


Besides scrambling and rooting opportunistically, Poison Ivy spreads by producing attractive berries to induce birds to ingest and disperse its seeds to improbable distant locations.

Virginia Rose, Rosa virginiana


Creeping, turf-building native roses utilize similar methods to Poison Ivy for colonizing the moors of Halibut Point, but have devised different techniques for self-defense.

Little Bluestem, Schizachyrium scoparium


Botanically, a  grain of grass is also a kind of fruit. The fruit wall is very thin and is fused to the seed coat, so that almost all of the edible grain is actually a seed, making an economical bargain for dispersal by wind or bird.

Carrion-flower, Smilax herbacea


There is a seldom-noticed short, thornless, herbaceous (non-woody, dies back annually to the ground) version of Cat Brier at Halibut Point that fruits in remarkable clusters, which is how you're most likely to find the plant among its robust menacing cousin with almost identical leaves. It gets its name from a carrion smell given off by the flowers that appeals to certain insect pollinators.

European Spindle-tree, Euonymus europaeus


Before the fruiting capsules of Spindle-trees open so spectacularly, they closely resemble the model that defines this otherwise diverse genus represented on Halibut Point by imported Oriental species Burning Bush (E. alatus), Evergreen Wintercreeper (E. japonicus), and the native, less colorful Eastern Spindle-tree (E. atropurpureus). The plant gets its name from its hard fine-grained wood that lent itself to carving spindles.

Bittersweet, Celastrus scandens


The showy fruit of Bittersweet (Celastrus scandens) bear a close resemblance to berries of the above-listed Euonymus, as both are members of the family Celastraceae. This plant of Oriental origins probably gets its name from opposing characteristics as a rampant invader and a prized ornamental.

Easter Red Cedar, Juniperus virginiana


On an interesting botanical note, Juniper berries are neither true berries nor actually a fruit. Conifers (gymnosperms) in ancient times evolved a primitive method of reproduction without flowering parts (angiosperms), which have enclosed ovaries that generate fruit to surround their seeds. Juniper seeds, like other conifers, are located on the surface of the cones. They are nevertheless very successful at multiplying their progeny into the thin-soiled meadows and moors of Halibut Point, often as a transitional tree to woodlands reclaiming agricultural or industrial areas.







Friday, October 23, 2020

October Scrolls

Our eyes are placed side by side. They move easily across horizons. Their view expands to left and right with the slightest turn of the head. 

The vertical realm asks more effort, concentration, intentionality. We check our balance before tipping our heads up or down. Does something await our vision? 

Looking at pictures in scroll formats simulates worldly discoveries of what lies above or below our primary focus. 

In many ways October reveals the culmination of growth and the re-purposing of the life force.



Leaf miner trail, grape leaf





Porcelain Berries





Mallard drake, quarry wall






Cardinal view






Transformation






Cat Brier






Chalcid Wasp, one-eighth inch






Spider notch






Flower Fly, aster






Ring-billed Gull






Misty morning



















Friday, October 16, 2020

Life after Goldenrod

In late summer a succession of asters gradually supplants goldenrod as the sustaining flower for the nectar seekers of Halibut Point.

Leonard's Skipper butterfly, aster, goldenrod


In October the diversity of flying insects diminishes. Various bees make up an increasing proportion of the insects still foraging on flowers.

Honey Bee, Apis mellifera


While initially they stay partial to goldenrod, as those flowers fade asters become the main attraction. The bees will have food for an additional few weeks.

Sweat Bee, Lasioglossum sp.


Since most of them are quite a bit smaller than Honey Bees, their elegant details of attire are harder to appreciate.

Metallic Green Sweat Bee, Halictidae sp.


And it's not as easy to get a good look when they're also constantly on the move investigating nectar sources.

Eastern Bumble Bee, Bombus impatiens


On the other hand plump, amiable Bumble Bees forage languidly usual. Just to look at them you might think summer will never end...

Thread-waisted Wasp, Ammophila nigricans


...but diversely configured wasps that earlier enlivened the landscape have become scarce... 

Colorful Foliage Ground Beetle, Lebia viridis


... fewer beetles visit the upper layers of the meadow....

Mason Wasp, Euodynerus foraminatus


...and other foragers search for the last bits of sustenance.

Striped Sweat Bee, Agapostemon sp.


Shorter days and the lower angle of the sun are bringing a sense of closure to the season. I suspect that conservative flowers time the opening of their pollen and nectar reservoirs with sunshine and warmth, extending the pageantry into the middle hours of a fall day.






Thursday, October 8, 2020

Apple Abundance

 

Apple tree bearing well, August 2020

A look up into the branches of apple trees on Halibut Point this summer confirmed that most had recovered well from the recent devastation by Gypsy Moth caterpillars.



Defoliation, July 2018

Two years ago, at the peak of the local infestation, fruit were sparse and could not be sustained after the trees lost their initial set of leaves. In 2019 we held our breath for concern that successive years of defoliation would kill the trees outright. "Miraculously" the pests did not return. The trees began recovering strength but produced no apples. Some of the damaged oak trees did not fare so well.


Gypsy Moth caterpillars at work, June 2018


Spring drought conditions in recent years had limited the effectiveness of a soil borne fungus imported from Japan as a targeted pesticide, Entomophaga maimaiga, which has helped keep Gypsy Moth populations in check since the last large outbreaks of the 1980s. 


Nashville Warbler in apple blossoms, May 2020


Favorable spring rains the last two years have proliferated the fungus, leading to Gypsy Moth suppression and bountiful flower production by the apple trees.


Northern Parula warbler, May 2020


Migrating warblers glean other species of caterpillars feeding on the apple tree's unfurling leaves and blossoms.


Eastern Yellowjacket, Vespula maculifrons


Toward the end of this summer sugary, mature apples dropped to the ground where they have given late-season sustenance to a variety of insects.


Common Green Bottle Fly, Lucilia sericata


The banquet for insects has been helped by Park mowing tractors that chop and mash the litter into apple sauce.


Parasitic Wasp, Disogmus sp., one-eighth inch long


Tiny wasps, hovering and flitting like fruit flies, form little clouds over the mash. A congregation of winged creatures take advantage of the bounty.


American Hover Fly, Eupeodes americanus




Bald-faced Hornet, Dolichovespula maculata




An ant, a Root Maggot Fly, and two Spotted-winged Vinegar Flies





Thursday, October 1, 2020

Goldenrod Gallery

Taking up station near blooming goldenrod in September gradually reveals an airport-like busyness of insect visitors. Buzzing, flitting, clambering, they animate the flower clusters with fantastical creatures. Nearly all the ones pictured here are less than half an inch long. Optical magnification opens a Lilliputian world to your amazement.


Chalcid Wasp, Monodontomerus sp.




Flower Fly, Toxomerus geminatus






Predatory Ground Beetle, Lebia viridis





Spined Soldier Bug, Podisus maculiventris





Gold-marked Thread-waisted Wasp, Eremnophila aureonotata





Tachinid Fly, Trichopoda pennipes





Jumping Spider, Hentzia palmarum





Bicolored Striped-Sweat Bee, Agapostemon virescens





Green-winged Lebia Beetle, Lebia viridipennis





Ichneumonid Wasp, Cryptus albitarsis