View allAll Photos Tagged pigmentation
Eristalis tenax is a large, stocky bee mimic. The eyes are marbled in black. Males have hovering displays. The average wing length is 9.75–13 mm and their average wingspan is 15 mm.
The exact appearance of the drone fly can vary considerably. The abdomen can vary in color from dark brown to orange. Pigmentation has an important role in the control of body temperature; the black areas down the center of the drone-flies abdomen may absorb solar radiation and so warm the dorsal blood vessel, which is right underneath.
Males of E. tenax can be strongly territorial in the summer, guarding territories such as flowerbeds or bushes to ensure a chance to mate. The males hover motionless in the air and dart after intruders to chase them out of the territory.
Research suggest that male drone flies live in the same territory their entire lives. They mate, feed, and groom in this area, and they defend the area against other insects. When male E. tenax of the spring and summer generations stop dispersing, they settle within home ranges which provide them with locations suitable for sheltering, resting, basking, grooming, feeding and mating. When away from its "home territory", a male drone fly rarely responds to other insects. But when it is on its mating site, the male is very territorial, attacking alien species such as bees, wasps, and butterflies. Being on territorial guard duty is very demanding, so much so that the males take rest periods outside of their territory. When weather conditions do not allow them to leave their territory, they become increasingly aggressive. Males that live in horizontal territories such as flowerbeds are more likely to notice intruders, and so are more likely to attack intruders than males who live in more vertically-aligned territories such as shrubs.
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In dragonflies, there are two main types of colors: natural pigmentation and structural colors. Most dragonflies have a little bit of both on their bodies. Natural Pigmentation
Natural pigmentation refers to colors that are always the same, no matter how you look at them. They usually consist of colors like brown, red, black, or yellow.
Rhyothemis Variegata, Common Picture Wing or Variegated Flutterer, is a black and yellow female dragonfly on a twig.
Found in Bocholt : Lozerheide
When I passed Lozerheide in Bocholt by car, I could not resist the temptation to look what springtails are jumping around there.
This Dicyrtomina minuta was a surprise, I was thinking they live only in the winter and it was 30°C yesterday. First time I've seen this springtail !
I think I must go on searching for Dicyrtomina minuta : Thanks Frans :-)))
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Housed in an elegant colonial-era home, this privately owned museum with contemporary displays showcases an impressive collection of pre-Columbian artifacts. Thematically organized around subjects such as shamans, pigmentation and the afterlife, explanations in English and Spanish (audio guides are available) explore the indigenous beliefs represented by the finely crafted ceramic pieces and jewelry.
Friedrich Wilhelm "F. W." Murnau (December 28, 1888 – March 11, 1931), Friedrich Gustav Maximilian Schreck (6 September 1879 – 20 February 1936)
A teneral (newly emerged) male Migrant Hawker rests on vegetation in a pond in Gloucestershire... The very pale eyes are a dead giveaway that this is a fresh dragonfly; they are not the colour of either an adult male or female, and the overall pigmentation of the insect is rather 'washed out'. The abdomen does not look sturdy enough for a female, and the patterning is clearly not right for Common Hawker - just look at the breadth of the yellow diagonal bands on the sides of the thorax and details on the base of the abdomen. So, on balance, it is a young male Migrant Hawker.
My thanks to Flickr friends Damian Keith and David Williams for identifying this dragonfly.
Leucistic birds have a loss of pigmentation in their feathers due to a genetic condition resulting in white areas on the bird to a lesser or geater degree, this varies from bird to bird. On first look at distance I thought it could be a Snow Bunting but when it came close I realised what it could be.
The white tiger or bleached tiger is a pigmentation variant of the Bengal tiger, which is reported in the wild from time to time in the Indian states of Madhya Pradesh, Assam, West Bengal, Bihar and Odisha in the Sunderbans region and especially in the former State of Rewa. Such a tiger has the black stripes typical of the Bengal tiger, but carries a white or near-white coat.
This photograph was taken at Nandankan, Bhubaneswar, Odisha, India.
Laguna Colorada (Red Lagoon) is a shallow salt lake in the southwest of the altiplano of Bolivia, within Eduardo Avaroa Andean Fauna National Reserve and close to the border with Chile.
The lake contains borax islands, whose white color contrasts with the reddish color of its waters, which is caused by red sediments and pigmentation of some algae. (Wikipedia)
i was surprised to see this female white Fallow Deer, the only one of its kind, in a herd of 10 or more in the New Forest. I have since learned that a group of around 20 white Fallow Deer roam the vast area of the New Forest. It is not and albino, its colour being due not to a lack of pigmentation but rather to s gene found in some Fallow Deer. They are also known as 'Judas Deer' for making the whole herd visible to poachers.
The Greater Flamingo is the largest of all species. The coloring of them is the main difference for telling them apart. One is very bright red in color and lives along the coast of the West Indies and even into Florida. Those with the pinker coloring are found residing in Africa and East India Pakistan. This particular species of Flamingo has the most diversified habitat in the wild of all of them.
During the colder times of the year, many of the Great Flamingos in Asia migrate to warmer climates. They generally end up in either Iran or India Pakistan. They won’t migrate though until the weather turns bad so when the season is a mild one they may not end up migrating at all. Due to global warming their migration patterns seem to be getting shorter and shorter.
They communicate vocally with a type of honking that is very similar to the sounds that geese make. Living in extremely large colonies, they are able to use these sounds as well as non verbal forms of communication to engage with each other. They don’t like their natural environment to be disrupted by noise, people, or other animals though. This can create high levels of stress for them to deal with.
The oldest Greater Flamingo in the world is found in a zoo located in Australia. He is at least 77 years old, but the exact age isn’t known. He was already grown up when he arrived as depicted by the colors of his feathers. The younger ones don’t get the pigmentation until they are at least 3 years of age.
Considered rare, this Leucistic Mallard hen has been calling LaSalle Park home. "Leucism is the genetic partial lack of pigmentation which leaves her predominantly white with brown spots.
I spotted this oddly marked Lazuli Bunting as I would looking at my images when I got home from birding. My initial reaction was he did not have his full color and must be a juvenile. Careful research proved that he would have been colored differently if he was a youngster. The odd white patches must be a case of Leucitic; missing pigmentation.
Leucistic Mountain Bluebird
Leucism is a partial loss of pigmentation, which can make the animal have white or patchily colored skin, hair, or feathers.
Eristalis tenax, the common drone fly, is a common, migratory, cosmopolitan species of hover fly. It is the most widely distributed syrphid species in the world, and is known from all regions except the Antarctic...Eristalis tenax is a large, stocky bee mimic. The eyes are marbled in black. Males have hovering displays. The average wing length is 9.75–13 mm and their average wingspan is 15 mm.
The exact appearance of the drone fly can vary considerably. The abdomen can vary in color from dark brown to orange. Pigmentation has an important role in the control of body temperature; the black areas down the center of the drone-flies abdomen may absorb solar radiation and so warm the dorsal blood vessel, which is right underneath
As with all tigers, the white Bengal tiger's stripes are like fingerprints, with no two tigers having the same pattern. The stripes of the tiger are a pigmentation of the skin; if an individual were to be shaved, its distinctive coat pattern would still be visible.
This album's name is dedicated to my favourite game of all time Elder Scrolls Online and race of all time, The Argonians (reptile humanoids). There's a story for you to read below about some of them towards the bottom.
What does Ku Vastei mean? Read below
By Lights-the-Way, Mystic of the Mages Guild
It is hard to describe the culture of my people. Often my tongue stumbles as I try to explain, but it is my hope that ink and quill will give me time enough to gather my thoughts. And perhaps, though such writing, I will finally connect the parts of me that now feel so divided; my homeland of Murkmire and my new life within the Mages Guild.
These journals are to become my ku-vastei. And, as I write that, I can think of no better topic to begin with.
Ku-vastei roughly translates to "the catalyst of needed change," though such a direct translation in no way does justice to the original meaning. Another translation could be "that which creates the needed pathway for change to occur" or even "the spark which ignites the flame which must come into being."
Perhaps a more direct analysis should be first presented. Ku-vastei is a noun, a thing or person. Vastei directly translates to change, an important part of my culture. Ku is harder to speak of. It is that which leads to change, though not that which creates change. An important role, as stagnation is a fate worse than death.
Take a boulder which sits atop a cliff, teetering in place. It must fall eventually. The ku-vastei does not push the boulder off the cliff; rather, it picks the pebble which holds the rock in place. And so it falls, not by a push, but by a pathway cleared.
Ku-vastei is revered, just as change itself is revered, for to look back at what was means to stumble as you move forward. Sometimes, a little push in the right direction is all someone needs to remember such wisdom. Other times, they may need to be shoved.
-------------------------------------
The Gee-Rusleel Tribe
by Emmanubeth Hurrent, the Wayfarers' Society of Wayrest
I've had the privilege to speak to two different Miredancer elders now, and I've learned a great deal from both of these conversations. The "Gee-Rusleel," as they call themselves, are among the most introspective Argonians I've met in my travels. They also tend to be the most pleasant. For all their reclusiveness and wariness, I've never met a people more willing to share a meal or a game of Shells and Stones. They are skilled crafters, with a particular knack for working with Hist amber and egg shells. They are also peerless navigators, guiding their flat-bottom boats effortlessly through the swamp, master weavers, and skilled cartographers.
The most defining characteristic of the Miredancer tribe, however, is piety. This deep reverence for the Hist has earned them the right to name a "Sap-Speaker" for countless generations.
According to the elders I spoke with, the Sap-Speaker is the Hist's direct intermediary. (This is, of course, subject to debate. Many tribes boast unique methods of communion with the Hist. But as far as I have seen, the Miredancers make the most compelling case for the methods they use.) Sap-Speakers often go into seclusion for days or even weeks on end, venturing either down into the roots or high into the canopy of leaves in the uppermost branches. Here, they commune with the Hist. Indeed, the word that one of the elders used was "journey."
These journeys into the Hist tax the Sap-Speakers, but are thoroughly private affairs. After days by themselves, the Sap-Speakers emerge to hide away with old books, scrolls, and tablets. I asked after the purpose of these periods of seclusion, and this is what the elders told me. "The Sap-Speaker enters the embrace of the Hist to learn from the great tree," one elder said. "While in close contact with the roots and branches, the Sap-Speaker receives visions and other forms of communication that neither you nor I would understand."
The other elder continued. "Even the Sap-Speaker finds some of what is shown to be mystifying and confusing. I have heard that a Sap-Speaker is treated to ancient metaphors, arcane secrets, and visions that make little sense to creatures so far removed from sap and pulp." Apparently, the second period of seclusion allows the Sap-Speaker time to reflect on what he or she was shown, as well as time to consult with the ancient writings of Sap-Speakers who came before. After a suitable period of study and reflection, the Sap-Speaker emerges to reveal the Hist's will to the tribe.
I attempted to get more information about what happens while the Sap-Speaker meditates among the roots or branches, but I'm not sure the elders knew much more. They did tell me that the only nourishment the Sap-Speaker receives during these periods of seclusion is provided by the Hist itself in the form of sap, leaves, and the otherwise forbidden fruit of the tree.
There is a price to pay for the gift of Hist communion, however. Ingesting large quantities of Hist sap is a dangerous affair, even for Argonians. Sap-Speakers routinely suffer the effects of sap-poisoning, including "gold tongue" (permanent change of mouth pigmentation to a golden hue), unbidden hallucinations, "bark-scale" (thickening and darkening of surface scales), and other maladies they were reticent to talk about. The current Sap-Speaker, Thumarz, was in seclusion during my visit to the tribal village. I hope to meet him someday. If he's half as wise as the elders I interacted with, I'd no doubt learn a great deal from him.
Despite their deeply religious nature, the Miredancers also seem to have an obsession with games of all types. They are particularly fond of the games Nine-Shells and Shells and Stones, as well as sports such as the popular "teeba-hatsei" (also known as "hip and tail ball.") In addition to lovingly explaining their own games, they wanted to know everything I could tell them about the games we play back in Wayrest. I must admit, their enthusiasm was quite infectious! And I found it highly amusing to watch them try to re-create Deceiver's Bones from the vague description I provided.
The Miredancers are also inveterate gamblers, but they often forget to collect their winnings. Unlike the games of men and mer, Miredancer competitions appear to be completely devoid of malice or injured pride. Victory and defeat seem more like afterthoughts than objectives, due in no small part to their phlegmatic disposition. As in most things, their focus is strictly on the moment—the now. It pains me to leave their village, but I still have many more tribes to study. I doubt any of them will be as fascinating or as friendly as the Miredancers.
["the tribe is not currently in the game but in the world of the game"]
What causes a squirrel to be white?
White Squirrels | Coastal and Marine Laboratory
The white squirrel is actually a genetic anomaly due to a mutated gene from the common Eastern Gray Squirrel. It is called leucism, which is a condition characterized by reduced pigmentation in animals caused by a recessive allele. Unlike albinism, it is a reduction in all types of skin pigment, not just melanin.
What is the difference between leucistic and albino?
Leucism vs. Albinism in the Animal Kingdom
Leucism and albinism are often difficult to tell apart in animals since the conditions share some of the same characteristics. While albinism refers to the complete lack of melanin—the natural pigment that gives skin, feathers, hair, and eyes their color—leucism involves a partial loss of pigmentation.
Thanks to everyone that views and comments on my images - very much appreciated.
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Sony ILCE-7RM5
In the light of the dusk I finally met a juvenile pheasant that I had heard all day. His wonderful plumage is not yet complete, the dorsal brown pigmentation leading to the tail is still absent,
Sulla strada di casa
A fine giornata incontro finalmente un giovane fagiano che avevo sentito durante tutta la giornata. Il suo piumaggio meraviglioso non è ancora completo, è ancora assente la pigmentazione marrone dorsale che porta alla coda.
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Common Darter sub species. This Dragonfly is found in North West Scotland and Scottish Highlands. It is said to be a melanic colour variation of the Common Darter, although at this time not yet confirmed. Insect species generally have darker pigmentation at Northern latitudes.
I collected some springtails in the garden from my sister Annie in Kaulille. Thanks Annie :-) She has a lot of Entomobrya nivalis in her garden.
I gave the springtail a tulip to discover...
In this dorsal shot you can see that in nivalis the U-ornamentation never touches the posterior segment margin.
Forma dorsalis of nivalis: note thoracic dorsal pigmentation is absent/indistinct.
This I learned from Frans Janssens :-) Thanks Frans !