View allAll Photos Tagged invasion
Immer wieder kann man in Parks und Gärten die Gemeine Feuerwanze (Pyrrhocoris apterus) beobachten. Die auffällig gezeichneten Wanzen sollen nicht schädlich sein. Aufgrund ihres oft massenhaften Auftretens werden sie als lästig empfunden und dementsprechend bekämpft.
Again and again one can observe the common fire bug (Pyrrhocoris apterus) in parks and gardens. The conspicuous drawn bugs should not be harmful. Because of their often mass occurrence, they are perceived as annoying and accordingly fought.
Flowers of the Callery Pear (Pyrus calleryana), also known as Bradford Pear, a popular cultivar. Widely planted in North America as an ornamental starting in the 1960s, its invasive qualities have been noted in recent years.
Tree top Bald Eagle with an attitude. Another eagle was approaching his/her territory and it got very loud.
Old timer lens taken with Fuji X-Pro1 plus Mitakon Speedmaster 0.95/35 wide-open. I am struggling with the notion of invasive photography. I have taken some "candid" shots, but the idea of "invasive" photography has more than a whiff of stealing. It means to take something that belongs to them, not to you, even if the thing taken is only a visual one. I am having some images I would not wish to use or publish. I can also use a different perspective: publishing them would not be in the public interest.
Just when you thought it was safe to go back in the water... the Canadian Marines have commenced their long-term aquatic deployment!
Ice plant (Carpobrotus edulis) carpets the dunes in Marina, California. A native to Australia, ice plant was enthusiastically planted by CalTrans along highways and train tracks through the sixties and seventies, and sold as a landscaping plant to home owners. Ice plant thrives in California’s Mediterranean climate and crowds out every other plant, as well as providing the perfect habitat for black rats, also invasive.
Officials finally realized ice plant was destroying native plant communities. The initial premise, that ice plant stabilizes soil, is incorrect - it does the opposite. Its foliage is thick succulent leaves that drink in available water and increase the weight of the plant to the point that banks collapse and dunes flatten. Like all succulents, it is very hard to eradicate. Leave just a fragment of the plant behind and off it goes, recarpeting cleared areas.
This is a view of where the officer’s club used to stand at Fort Ord - the Army planted acres of ice plant. Attempts are being made to get rid of it - the dead zone in the foreground has been sprayed with a powerful herbicide even though the waters of Monterey Bay are at the bottom of the dunes (a big splash from today’s giant surf is visible in the notch on the left). So, maybe not a great plan.
Yes, ice plant is pretty with its many shades from green to red and even spectacular when it blooms - many folks here are unaware that it shouldn’t be here and not particularly impressed by the native plants of the dune ecosystem. Ice plant is edible. Maybe if we all take a few bites every time we are around the stuff...
NB: not captive, seen on an exterior wall.
White-fringed weevils are native to southern South America.
I learned that they are invasive here in Australia, now pests of agricultural crops.
Adults feed on the foliage of hundreds of plant species. Larvae feed on roots and their damage is more serious, especially on crops or young pines in plantations and nurseries.
10 mm body length.
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Deep in woods local to me there is this dense cluster of other worldly moss laden trees.
This is my first attempt at capturing their beauty. I look forward to revisiting over the years
European Paper Wasp (Polistes dominula)
On the Ivy flowers yesterday. A non native, invasive species first noted here in Oz in 1986.
Happy WIng Wednesday!
Begegnung auf dem Lipschitzplatz
dem 10. Mai 2021 gewidmet :
Der bundesweite Tag der Kinderbetreuung in Deutschland –
Die tägliche Arbeit von Kinderbetreuerinnen und Kinderbetreuern hat große Bedeutung für Kinder, Eltern und unsere Gesellschaft.
Sie alle haben Anerkennung und ein Dankeschön verdient. Aus diesem Grund hat sich 2012 eine Initiative gebildet und den Tag der Kinderbetreuung ins Leben gerufen. Der Aktionstag findet seitdem jährlich am Montag nach dem Muttertag statt
Created for DUC22#25 YELLOW
Thanks to
skagitrenee for the starter image
www.flickr.com/photos/jardeniere/52160443857/
The rest of the images are my own.
Old Man's Beard (Clematis vitalba) is an invasive plant that smothers trees and other plants. It is a widespread Class B noxious weed in Oregon and Washington that increases wildfire risk and degrades habitats for wildlife.
Impressive fact: Old man’s beard can grow five to seven times faster than ivy, with each stem capable of producing 30 feet of growth in one season.
Invasive Sparrow
House Sparrow were introduced from Europe. They are extremely aggressive to indigenous sparrows, for example chasing them away from feeders, which is why their range in North America continues to expand
2018_11_19_EOS 7D Mark II_4689_V1
As beautiful as these grasses can be in the right light, I have learned from Dean that "these invasive Phragmites (European Common Reed) are ... troublesome in our native marsh and wetlands."
Wikipedia:
"In North America, the status of Phragmites australis was a source of confusion and debate. It was commonly considered an exotic species and often invasive species, introduced from Europe. However, there is evidence of the existence of Phragmites as a native plant in North America long before European colonization of the continent. It is now known that the North American native forms of P. a. subsp. americanus are markedly less vigorous than European forms. The recent marked expansion of Phragmites in North America may be due to the more vigorous, but similar-looking European subsp. australis.
"Phragmites outcompetes the native vegetation and lowers the local plant biodiversity. Phragmites forms dense thickets of vegetation that is unsuitable habitat for native fauna. Phragmites displaces native plants species such as wild rice, cattails, and native wetland orchids. Phragmites's high above ground biomass blocks light to other plants allowing areas to turn into Phragmites monoculture very quickly. Decomposing Phragmites increases the rate of marsh accretion more rapidly than would occur with native marsh vegetation.
"Phragmites australis subsp. australis is causing serious problems for many other North American hydrophyte wetland plants, including the native Phragmites australis subsp. americanus. Gallic acid released by Phragmites is degraded by ultraviolet light to produce mesoxalic acid, effectively hitting susceptible plants and seedlings with two harmful toxins. Phragmites are so difficult to control that one of the most effective methods of eradicating the plant is to burn it over 2-3 seasons. The roots grow so deep and strong that one burn is not enough. Ongoing research suggests that goats could be effectively used to control the species."