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Dienstag, 30 Mai 2017 12:12

Bild des Monats Mai - "Sonnenuntergang in Berlin"

Bild des Monats Mai - "Sonnenuntergang in Berlin"

Manchmal muss man einfach an einen bereits bekannten Spot zurückkehren, um ein völlig anderes Bild zu machen als bei einem vorherigen Besuch. Das Bild des Monats im Monat Mai ist vom gleichen Spot aus enstanden wie das Bild des Monas März, zeigt jedoch eine völlig andere Stimmung und gibt euch einen Einblick in diverse Techniken, die ich nutze, um meine Ergebnisse zu erzielen. In diesem Beitrag geht es um die Kombination zweier Aufnahmen, um eine möglichst gleichmäßige Belichtung zu erzielen, ohne dabei auf Techniken wie HDR zurückgreifen zu müssen.


Einführung

Als Landschaftsfotograf ist man inzwischen mehr oder weniger an die Nachbearbeitung gefesselt. Das meine ich überhaupt nicht negativ, im Gegenteil, es macht Spaß mit LR/PS noch das letzte aus den Bildern raus zu kitzeln. Auch wenn natürlich manche Dinge noch spontan im Workflow entstehen, sollte man die groben Schritte der Bearbeitung aber schon beim Aufnehmen des Bildes im Kopf haben. Hinterher irgendwie an den Reglnern schieben bis es passt kann zwar funktionieren, zeugt aber wenig von zielorientiertem Arbeiten. Gleichzeitig ist man als Fotograf aber immer abhängig vom Licht, d.h. man kann zwar zuhause den Spot planen, den Wetterbericht prüfen und die Ausrüstung entsprechend gestalten, aber wenn vor Ort das Licht nicht zu dem passt, was man sich vorgestellt hat, muss man flexibel sein oder es eben sein lassen.


Planung

Ich versuche in der Regel die Aufnahmen so gut es geht vorher zu planen. Gerade bei Sonnenuntergängen ist das aber äußerst schwierig, da kleinste Wolken darüber entscheiden können, ob der Himmel blutrot oder einfach graublau wird. In Berlin hat man im Frühling/Sommer leider oft das Problem, dass in Brandenburg Gewitter ist, während man in der Stadt blauen Himmel vorfindet. Als Resultat hängen am Horizont oft dicke Wolken, die in der Stadt den Sonnenuntergang ruinieren. :D Der Wetterbericht sah aber denkbar gut aus dieses mal, warm, trocken und kleinere Wölkchen am Himmel, perfekte Bedingungen für eine gelungene Aufnahme zum Sonnenuntergang. Mit TPE (hier ein Video von uns dazu) ermittelte ich den Stand der Sonne zum Zeitpunkt des Untergangs, der inzwischen deutlich weiter rechts (vom Spot aus gesehen) liegt, als noch vor 2 Monaten als dieses Bild entstanden ist (logisch, die Tage werden länger ;)).

  • tpe

Vor Ort

Mit 5DM3, 17-40 f4.0 L, Polfilter und 64x ND-Filter bewaffnet erreichte ich schließlich das Ziel und traf dort direkt auf Mitstreiter. Enttäuscht mussten wir leider feststellen, dass Brandenburg mal wieder zugeschlagen hatte und die gerade untergehende Sonne sich hinter einem schmalen Wolkenband befand. Aber wie hat ein gewisser Herr Jaworkskyj schon gesagt: Oft sind es die 15 Minuten NACH dem Sonnenuntergang, die entscheidend sind. Dies sollte sich auch hier bewahrheiten, nur dass es 15 Minuten gedauert hat, bis es überhaupt wieder brauchbares Licht gab. Die schon hinterm Horizont verschwundene Sonne färbte den Himmel samt Wolken wieder angenehm rot. Für die tiefer stehenden Wolken im Vordergrund reichte es nicht auf Grund des oben erwähnten Wolkenbandes.

Das Helligkeitsgefälle zwischen Himmel und Stadt war inzwischen deutlich größer geworden. Es ist nicht möglich gewesen mit einer einzelnen Belichtung den gesamten Dynamikumfang abzubilden. Natürlich wäre es möglich gewesen ein HDR vorzubereiten mit einer ganzen Belichtungsserie. Dies erschien mir aber auch wieder nicht sinnvoll, da erstens der Himmel gut aussah, wie er war, und zweitens lediglich die Stadt im Vordergrund etwas mehr Licht benötigte. Ich habe mich daher relativ spontan dafür entschieden nur 2 Aufnahmen zu machen, eine für den Himmel, eine für die Stadt und diese später durch simples Maskieren in Photoshop zu kombinieren. Der grobe Bearbeitungsplan stand zu diesem Zeitpunkt aber schon fest, so dass ichh meine Aufnahmen gezielt an meinen Plan anpassen konnte.


Die Rohaufnahmen

Die Ausrüstung viel entgegen aller Erwartungen auch sehr übersichtlich aus. Den ND-Filter habe ich aus mehreren Gründen direkt wieder eingepackt:

  1. Der rote Teil des Himmels war auf Grund der Wolkenlage ohnehin schon "schlierig" genug.
  2. Die kleinen dunklen Wolkenfetzen bieten mir in ihrer Struktur wesentlich mehr Dramatik, als graue Schleier, die nur das rot verdecken.

Auch der Polfilter blieb in der Tasche, denn:

  1. Das Licht traf fast frontal auf die Linse, die Auswirkungen des Polfilters sind dann überschaubar.
  2. Bei der Einstellung, wo er tatsächlich was am Himmel bewegt hätte, wären sämtliche Reflektionen auf dem Wasser weg gewesen. Diese sind mir aber sehr wichtig gewesen, da sie an dieser Stelle noch einmal angenehmes Licht ins Bild bringen und somit eine führende Linie zum Berliner Dom bilden.

Beide Aufnahmen sind im M-Modus entstanden. Die ISO habe ich auf 50 gestellt, Blende 8 für durchgehende Schärfe. Die Aufnahme für den Himmel ist mit 1s Verschlusszeit entstanden, die für die Stadt und die Straße mit 5s. Die perspektive erlaubte 17mm ohne große Verzerrungen, auch weil ich mich bemüht habe, den Fernsehturm nicht an den Bildrand zu quetschen, wo die Verzerrungen am größten sind.

  • 842A5828_orig
  • 842A5829_orig

 

Die Bearbeitung

Eine erste RAW-Entwicklung habe ich bereits in LR vollzogen. Insbesondere ist mir wichtig gleich am Anfang CAs zu korrigieren. Das 17-40 ist eine schöne Linse, aber man sieht oft deutliche Farbsäume und so ist auch hier der Fernsehturm nicht verschont geblieben. Später lassen sich die CAs sehr viel schlechter korrigieren, da sie durch zusätzliche Filter nicht mehr so eindeutig identifizierbar sind. Daher werden solche grundlegenden Dinge in meinem Workflow gleich am Anfang erledigt. Ansonsten wurde in der ersten Entwicklung lediglich der Kontrast optimiert über eine Kombination aus Tiefen/Lichter und Schwarz/Weiß Reglern, wie ich sie auch in diesem Video beschreibe.

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Maskierung

Alle weiteren Schritte erfolgten dann in Photoshop. Das schwierigste war es eine gute Auswahl zu erzeugen, auf deren Basis dann die Layermaske entstehen konnte, um die korrekt belichtete Stadt in den korrekt belichteten Himmel zu blenden. Ich habe dabei auf die Kanäle zurückgegriffen und auf Basis des Blau-Kanals und Tonwertkorrekturen die grundlegende Auswahl gebaut, die durch etwas Verkleinern und mit weichem Rand perfektioniert wurde. Angewendet auf den Stadt-Layer ergab sich ein bereits ansehnliches Ergebnis.

  • blaukanal
  • maskiert
  • maskierung

 

NIK ColorEfex

Für etwas mehr Wärme und noch ein wenig Kontrast nutzte ich dann die Nik Color Efex, speziell Warmth/Brilliance und den Detail Extractor. Ich habe mir grundsätzlich angewöhnt den dadurch entstehenden Layer sofort auf 50% Deckkraft zu stellen, um damit den Effekt zu halbieren. Anschließend verlasse ich für mindestens 10 Minuten den Bildschirm und nur wenn ich beim Zurückkehren denke, dass es zu wenig ist, stelle ich die Deckkraft höher. Das verhindert bei mir sehr gut, dass ich es mit den Effekten übertreibe.
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Farbgebung durch Verlaufsumsetzung

Für etwas mehr Lila am rechten Bildrand, der ja sowieso etwas dunkler ausfällt, nutze ich eine Verlaufsumsetzung, die mit einer Layermaske und Gradienten wirklich nur in der Ecke rechts unten angewendet wird. Der Effekt bewirkt, dass die Farbgebung auf der Straße und den hellen Gebäuden deutlich weniger grün wird, was mehr dem Gesamteindruck des Bildes entspricht.
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Schärfen

Danach erfolgte eine Schärfung per Hochpassfilter. Zum Schärfen gibt es ja sehr eigene Philosophien, ich persönlich finde die Hochpassschärfung nach wie vor absolut brilliant, da sie quasi den "Maskieren"-Regler aus Lightroom automatisch beinhaltet. Wichtig auch hier wieder: Mit Bedacht vorgehen, nicht überschärfen!
{twenty}image1=2017/2017_05_29_BDM_Mai/05_verlauf/842A5829_verlauf.jpg|image2=2017/2017_05_29_BDM_Mai/06_scharf/842A5829_scharf.jpg{twenty}

 

Letzter Schliff

Den Abschluss bildete eine weitere RAW-Entwicklung, bei der aber lediglich Teile im Bild per Korrekturpinsel mehr betont wurden. Dies erfolgte mit einem weichen Pinsel, für den die Belichtung um eine halbe Blendenstufe erhöht wurde.
{twenty}image1=2017/2017_05_29_BDM_Mai/06_scharf/842A5829_scharf.jpg|image2=2017/2017_05_29_BDM_Mai/07_raw2/842A5829_licht.jpg{twenty}

 

Abschluss

Wer unseren Blog regelmäßig liest, dem ist vermutlich aufgefallen, dass das Bild des Monats März aus identischer Perspektive gemacht wurde. Damals lag der Fokus aber wesentlich mehr auf fotografischen Effekten, während es dieses mal hauptsächlich um Techniken der Nachbearbeitung ging. Für kommende Beiträge aus dieser Serie werde ich aber wieder auf andere Locations zurückgreifen :)

  • 842A5829_final

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57293 Kommentare

  • Kommentar-Link darkdark-jailk Samstag, 03 Mai 2025 18:01 gepostet von darkdark-jailk

    Безопасность при использовании Кракен
    При использовании Кракен и других кра29ат
    важно уделять особое внимание безопасности. кра30ат по своей природе является зоной повышенного риска‚ где мошенники и злоумышленники могут поджидать ничего не подозревающего пользователя.

    Меры предосторожности
    Для минимизации рисков при использовании кра29 и других подобных ресурсов рекомендуется:

    Использовать кракен смотреть для обеспечения анонимности и защиты от слежки.
    Включить VPN для дополнительного шифрования трафика и сокрытия IP-адреса.
    Не использовать личные данные при регистрации на кра34ат.
    Внимательно проверять продавцов перед совершением покупки‚ изучая их репутацию и отзывы.
    Использовать криптовалюты для оплаты кракен магазин‚ так как они обеспечивают определенный уровень анонимности.
    Риски и последствия
    Несмотря на принимаемые меры предосторожности‚ использование даркнет-рынков‚ таких как Кракен‚ сопряжено с рядом рисков. К ним относятся:

    Риск блокировки аккаунта кра32сс или потери средств из-за действий правоохранительных органов или мошенников.
    Возможность нарваться на мошенника при покупке товаров или услуг.
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  • Kommentar-Link RobertTenry Samstag, 03 Mai 2025 15:07 gepostet von RobertTenry

    Look of the Week: Naomi Watts is twinning with her canine co-star
    openocean fi
    What’s white and black and red all over? Naomi Watts and her 145lb co-star, Bing, a Great Dane, taking a dog walk on the crimson carpet for the New York premiere of “The Friend.”

    Directed by Scott Mcgehee and adapted from Sigrid Nunez’s 2018 novel of the same name, the film — set to release in US theaters on March 28 and in the UK on April 25 — follows a solitary writer and teacher named Iris whose life is upended after a close friend bequeaths his giant pet dog to her following his death.

    In front of the cameras Monday evening, the “Mulholland Drive” actor and Bing looked like they were cut from the same cloth — both in temperament and in their matching black polka dots. Watts was dressed in a white gown with fur-tufted spots that bore a striking resemblance to Bing’s own coat, but the Cruella de Vil comparisons ended there. Instead, Watts and Bing were captured in the throes of lots of paw-shakes, puppy kisses and head scratches.
    The dress that Watts wore, titled the “Domino” and designed by Jacquemus, debuted during the Spring-Summer 2025 Paris couture shows in January. The look was both elegant and offbeat, with a high-cowl neck and open-back, asymmetrical waistline that mimicked a French tuck. It was styled with a skirt that sprouted furry black polka dots, which close up were unnervingly reminiscent of body hair. But from afar they gave the impression of soft-edged dabs of watercolor bleeding downstream.

    The look was styled by Jeanann Williams, who has also been working with “The White Lotus” star Leslie Bibb. Williams’ decision to coordinate Watts with Bing was a new take on method dressing — the thematic styling trend that has dominated celebrity red carpets since Greta Gerwig’s “Barbie” in 2023. Since then, the sartorial trope, which connects actors to their on-screen characters through clothes, has become somewhat tired — with some observers claiming that the 7-month-long “Wicked” press tour, in which Cynthia Erivo and Ariana Grande became prisoners to the colors green and pink, was peak saturation.
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  • Kommentar-Link Ткацкий Samstag, 03 Mai 2025 14:39 gepostet von Ткацкий

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  • Kommentar-Link Modestorop Samstag, 03 Mai 2025 13:31 gepostet von Modestorop

    Tbilisi, Georgia — Jailed journalist Mzia Amaghlobeli gets weaker every day as her hunger strike has reached three weeks in Rustavi, a town near the Georgian capital of Tbilisi, her lawyer says. Now the 49-year-old is having difficulty walking the short distance from her cell to the room where they usually meet, and human rights officials, colleagues and family fear for her life.
    kra27 at
    Amaghlobeli was arrested Jan. 12 during an anti-government protest in the coastal city of Batumi, one of over 40 people in custody on criminal charges from a series of demonstrations that have hit the South Caucasus nation of 3.7 million in recent months.
    kra30.at
    The political turmoil follows a parliamentary election that was won by the ruling Georgian Dream party, although its opponents allege the vote was rigged.

    Protests highlight battle over Georgia's future. Here's why it matters.
    Its outcome pushed Georgia further into Russia's orbit of influence. Georgia aspired to join the European Union, but the party suspended accession talks with the bloc after the election.

    As it sought to cement its grip on power, Georgian Dream has cracked down on freedom of assembly and expression in what the opposition says is similar to President Vladimir Putin's actions in neighboring Russia, its former imperial ruler.
    kra23.cc
    https://kra22at.com

  • Kommentar-Link SamuelExoms Samstag, 03 Mai 2025 13:24 gepostet von SamuelExoms

    Kate Winslet had a surprising ‘Titanic’ reunion while producing her latest film ‘Lee’
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    Kate Winslet is sharing an anecdote about a “wonderful” encounter she recently had with someone from her star-making blockbuster film “Titanic.”

    The Oscar winner was a guest on “The Graham Norton Show” this week, where she discussed her new film “Lee,” in which she plays the fashion model-turned-war photographer Lee Miller from the World War II era.
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    Winslet recounted that while she had previously executive produced a number of her projects, “Lee” was the first movie where she served as a full-on producer. That required her involvement from “beginning to end,” including when the film was scored in post-production.

    She explained to Norton that when she attended the recording of the film’s score in London, while looking at the 120-piece orchestra, she saw someone who looked mighty familiar to her.

    “I’m looking at this violinist and I thought, ‘I know that face!’” she said.

    At one point, other musicians in the orchestra pointed to him while mouthing, “It’s him!” to her, and it continued to nag at Winslet, prompting her to wonder, “Am I related to this person? Who is this person?”

    Finally, at the end of the day, the “Reader” star went in to where the orchestra was to meet the mystery violinist, and she was delighted to realize he was one of the violinists who played on the ill-fated Titanic ocean liner as it sank in James Cameron’s classic 1997 film.
    “It was that guy!” Winslet exclaimed this week, later adding, “it was just wonderful” to see him again.

    “We had so many moments like that in the film, where people I’ve either worked with before, or really known for a long time, kind of grown up in the industry with, they just showed up for me, and it was incredible.”

    “Lee” released in theaters in late September, and is available to rent or buy on AppleTV+ or Amazon Prime.

  • Kommentar-Link DonaldRor Samstag, 03 Mai 2025 12:42 gepostet von DonaldRor

    Axolotl problems
    As Mexico City grew and became more industrialized, the need for water brought pumps and pipes to the lake, and eventually, “it was like a bad, smelly pond with rotten water,” Zambrano said. “All of our aquatic animals suffer with bad water quality, but amphibians suffer more because they have to breathe with the skin.”
    лаки джет играть
    To add to the axolotls’ problems, invasive fish species such as carp and tilapia were introduced to the lake, where they feed on axolotl eggs. And a 1985 earthquake in Mexico City displaced thousands of people, who found new homes in the area around the lake, further contributing to the destruction of the axolotls’ habitat.

    These combined threats have devastated axolotl populations. According to the International Union for Conservation of Nature, there are fewer than 100 adult axolotls left in the wild. The species is considered critically endangered.
    https://lucky-jetts.com
    лаки джет игра
    While the wild axolotls of Lake Xochimilco have dwindled to near-extinction, countless axolotls have been bred for scientific laboratories and the pet trade. “The axolotl essentially helped establish the field of experimental zoology,” Voss said.

    In 1864, a French army officer brought live axolotls back to Europe, where scientists were surprised to learn that the seemingly juvenile aquatic salamanders were capable of reproduction. Since then, scientists around the world have studied axolotls and their DNA to learn about the salamanders’ unusual metamorphosis (or lack thereof) as well as their ability to regrow injured body parts.
    In addition to their role in labs, axolotls have become popular in the exotic pet trade (though they are illegal to own in California, Maine, New Jersey and Washington, DC). However, the axolotls you might find at a pet shop are different from their wild relatives in Lake Xochimilco. Most wild axolotls are a dark grayish brown. The famous pink axolotls, as well as other color variants such as white, blue, yellow and black, are genetic anomalies that are rare in the wild but selectively bred for in the pet trade.

    What’s more, “most of the animals in the pet trade have a very small genetic variance,” Zambrano said. Pet axolotls tend to be inbred and lack the wide flow of different genes that makes up a healthy population in the wild. That means that the axolotl extinction crisis can’t simply be solved by dumping pet axolotls into Lake Xochimilco. (Plus, the pet axolotls likely wouldn’t fare well with the poor habitat conditions in the lake.)

  • Kommentar-Link JamesCab Samstag, 03 Mai 2025 10:35 gepostet von JamesCab

    Axolotl problems
    As Mexico City grew and became more industrialized, the need for water brought pumps and pipes to the lake, and eventually, “it was like a bad, smelly pond with rotten water,” Zambrano said. “All of our aquatic animals suffer with bad water quality, but amphibians suffer more because they have to breathe with the skin.”
    lucky jet играть
    To add to the axolotls’ problems, invasive fish species such as carp and tilapia were introduced to the lake, where they feed on axolotl eggs. And a 1985 earthquake in Mexico City displaced thousands of people, who found new homes in the area around the lake, further contributing to the destruction of the axolotls’ habitat.

    These combined threats have devastated axolotl populations. According to the International Union for Conservation of Nature, there are fewer than 100 adult axolotls left in the wild. The species is considered critically endangered.
    https://lucky-jetts.com
    lucky jet играть
    While the wild axolotls of Lake Xochimilco have dwindled to near-extinction, countless axolotls have been bred for scientific laboratories and the pet trade. “The axolotl essentially helped establish the field of experimental zoology,” Voss said.

    In 1864, a French army officer brought live axolotls back to Europe, where scientists were surprised to learn that the seemingly juvenile aquatic salamanders were capable of reproduction. Since then, scientists around the world have studied axolotls and their DNA to learn about the salamanders’ unusual metamorphosis (or lack thereof) as well as their ability to regrow injured body parts.
    In addition to their role in labs, axolotls have become popular in the exotic pet trade (though they are illegal to own in California, Maine, New Jersey and Washington, DC). However, the axolotls you might find at a pet shop are different from their wild relatives in Lake Xochimilco. Most wild axolotls are a dark grayish brown. The famous pink axolotls, as well as other color variants such as white, blue, yellow and black, are genetic anomalies that are rare in the wild but selectively bred for in the pet trade.

    What’s more, “most of the animals in the pet trade have a very small genetic variance,” Zambrano said. Pet axolotls tend to be inbred and lack the wide flow of different genes that makes up a healthy population in the wild. That means that the axolotl extinction crisis can’t simply be solved by dumping pet axolotls into Lake Xochimilco. (Plus, the pet axolotls likely wouldn’t fare well with the poor habitat conditions in the lake.)

  • Kommentar-Link Henrytet Samstag, 03 Mai 2025 09:47 gepostet von Henrytet

    Axolotl problems
    As Mexico City grew and became more industrialized, the need for water brought pumps and pipes to the lake, and eventually, “it was like a bad, smelly pond with rotten water,” Zambrano said. “All of our aquatic animals suffer with bad water quality, but amphibians suffer more because they have to breathe with the skin.”
    лаки джет игра
    To add to the axolotls’ problems, invasive fish species such as carp and tilapia were introduced to the lake, where they feed on axolotl eggs. And a 1985 earthquake in Mexico City displaced thousands of people, who found new homes in the area around the lake, further contributing to the destruction of the axolotls’ habitat.

    These combined threats have devastated axolotl populations. According to the International Union for Conservation of Nature, there are fewer than 100 adult axolotls left in the wild. The species is considered critically endangered.
    https://lucky-jetts.com
    lucky jet играть
    While the wild axolotls of Lake Xochimilco have dwindled to near-extinction, countless axolotls have been bred for scientific laboratories and the pet trade. “The axolotl essentially helped establish the field of experimental zoology,” Voss said.

    In 1864, a French army officer brought live axolotls back to Europe, where scientists were surprised to learn that the seemingly juvenile aquatic salamanders were capable of reproduction. Since then, scientists around the world have studied axolotls and their DNA to learn about the salamanders’ unusual metamorphosis (or lack thereof) as well as their ability to regrow injured body parts.
    In addition to their role in labs, axolotls have become popular in the exotic pet trade (though they are illegal to own in California, Maine, New Jersey and Washington, DC). However, the axolotls you might find at a pet shop are different from their wild relatives in Lake Xochimilco. Most wild axolotls are a dark grayish brown. The famous pink axolotls, as well as other color variants such as white, blue, yellow and black, are genetic anomalies that are rare in the wild but selectively bred for in the pet trade.

    What’s more, “most of the animals in the pet trade have a very small genetic variance,” Zambrano said. Pet axolotls tend to be inbred and lack the wide flow of different genes that makes up a healthy population in the wild. That means that the axolotl extinction crisis can’t simply be solved by dumping pet axolotls into Lake Xochimilco. (Plus, the pet axolotls likely wouldn’t fare well with the poor habitat conditions in the lake.)

  • Kommentar-Link LewisNok Samstag, 03 Mai 2025 09:18 gepostet von LewisNok

    Why axolotls seem to be everywhere — except in the one lake they call home
    кракен онион
    Scientist Dr. Randal Voss gets the occasional reminder that he’s working with a kind of superstar. When he does outreach events with his laboratory, he encounters people who are keen to meet his research subjects: aquatic salamanders called axolotls.

    The amphibians’ fans tell Voss that they know the animals from the internet, or from caricatures or stuffed animals, exclaiming, “‘They’re so adorable, we love them,’” said Voss, a professor of neuroscience at the University of Kentucky College of Medicine. “People are drawn to them.”
    https://kra31f.cc
    кракен ссылка

    Take one look at an axolotl, and it’s easy to see why it’s so popular. With their wide eyes, upturned mouths and pastel pink coloring, axolotls look cheerful and vaguely Muppet-like.

    They’ve skyrocketed in pop culture fame, in part thanks to the addition of axolotls to the video game Minecraft in 2021. These unusual salamanders are now found everywhere from Girl Scout patches to hot water bottles. But there’s more to axolotls than meets the eye: Their story is one of scientific discovery, exploitation of the natural world, and the work to rebuild humans’ connection with nature.

    A scientific mystery
    Axolotl is a word from Nahuatl, the Indigenous Mexican language spoken by the Aztecs and an estimated 1.5 million people today. The animals are named for the Aztec god Xolotl, who was said to transform into a salamander. The original Nahuatl pronunciation is “AH-show-LOAT”; in English, “ACK-suh-LAHT-uhl” is commonly used.
    Axolotls are members of a class of animals called amphibians, which also includes frogs. Amphibians lay their jelly-like eggs in water, and the eggs hatch into water-dwelling larval states. (In frogs, these larvae are called tadpoles.)

    Most amphibians, once they reach adulthood, are able to move to land. Since they breathe, in part, by absorbing oxygen through their moist skin, they tend to stay near water.

    Axolotls, however, never complete the metamorphosis to a land-dwelling adult form and spend their whole lives in the water.

    “They maintain their juvenile look throughout the course of their life,” Voss said. “They’re teenagers, at least in appearance, until they die.”

  • Kommentar-Link RaymondLem Samstag, 03 Mai 2025 06:51 gepostet von RaymondLem

    Axolotl problems
    As Mexico City grew and became more industrialized, the need for water brought pumps and pipes to the lake, and eventually, “it was like a bad, smelly pond with rotten water,” Zambrano said. “All of our aquatic animals suffer with bad water quality, but amphibians suffer more because they have to breathe with the skin.”
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    To add to the axolotls’ problems, invasive fish species such as carp and tilapia were introduced to the lake, where they feed on axolotl eggs. And a 1985 earthquake in Mexico City displaced thousands of people, who found new homes in the area around the lake, further contributing to the destruction of the axolotls’ habitat.

    These combined threats have devastated axolotl populations. According to the International Union for Conservation of Nature, there are fewer than 100 adult axolotls left in the wild. The species is considered critically endangered.
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    While the wild axolotls of Lake Xochimilco have dwindled to near-extinction, countless axolotls have been bred for scientific laboratories and the pet trade. “The axolotl essentially helped establish the field of experimental zoology,” Voss said.

    In 1864, a French army officer brought live axolotls back to Europe, where scientists were surprised to learn that the seemingly juvenile aquatic salamanders were capable of reproduction. Since then, scientists around the world have studied axolotls and their DNA to learn about the salamanders’ unusual metamorphosis (or lack thereof) as well as their ability to regrow injured body parts.
    In addition to their role in labs, axolotls have become popular in the exotic pet trade (though they are illegal to own in California, Maine, New Jersey and Washington, DC). However, the axolotls you might find at a pet shop are different from their wild relatives in Lake Xochimilco. Most wild axolotls are a dark grayish brown. The famous pink axolotls, as well as other color variants such as white, blue, yellow and black, are genetic anomalies that are rare in the wild but selectively bred for in the pet trade.

    What’s more, “most of the animals in the pet trade have a very small genetic variance,” Zambrano said. Pet axolotls tend to be inbred and lack the wide flow of different genes that makes up a healthy population in the wild. That means that the axolotl extinction crisis can’t simply be solved by dumping pet axolotls into Lake Xochimilco. (Plus, the pet axolotls likely wouldn’t fare well with the poor habitat conditions in the lake.)

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