Biodiversity

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Welcome to c/Biodiversity @ Mander.xyz!

A community about the variety of life on Earth at all levels; including plants, animals, bacteria, and fungi.



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2023-06-16: We invite our users to contribute resources for the sidebar.

2023-06-15: Looking for mods!



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Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans. Scientists have estimated that there are around 8.7 million species of plants and animals in existence. However, only around 1.2 million species have been identified and described so far, most of which are insects. This means that millions of other organisms remain a complete mystery.

Over generations, all of the species that are currently alive today have evolved unique traits that make them distinct from other species. These differences are what scientists use to tell one species from another. Organisms that have evolved to be so different from one another that they can no longer reproduce with each other are considered different species. All organisms that can reproduce with each other fall into one species. Read more...

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Researchers have released new maps documenting the “Great Nile Migration,” the Earth’s largest-known land mammal migration across South Sudan and Ethiopia.

The maps chart the seasonal movements of two antelope species, the white-eared kob (Kobus kob leucotis) and the tiang (Damaliscus lunatus tiang). Every year, around 5 million white-eared kob and 400,000 tiang migrate across 100,000 square kilometers (38,612 square miles) of South Sudan’s wetlands and Ethiopia’s Gambella National Park.

archived (Wayback Machine)

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Male bonobos are larger and stronger than females, so researchers have found it puzzling that the female apes enjoy high status in bonobo society. After analyzing three decades of behavioral data, researchers recently shared a study that pinpoints their source of power: female alliances and coalitions.

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To protect themselves, the curlews eavesdrop on the alarms coming from prairie dog colonies, according to research published Thursday in the journal Animal Behavior.

so far, scientists have documented only a few instances of birds eavesdropping on mammals.

"That doesn't necessarily mean it's rare in the wild," she said, "it just means we haven't studied it yet."

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Some good news can't do any harm.

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cross-posted from: https://hexbear.net/post/5204608

Just below Greenland is a menacing stretch of water known as the Cold Blob. As the planet heats up, the Cold Blob remains a spooky outlier — positioned right above the area where the Atlantic Ocean’s so-called conveyor belt is supposed to switch back and head south.

The Atlantic Meridional Overturning Current, or AMOC for short, comprises an enormous system of currents that carries water and nutrients across the world and plays a large part in stabilizing the global climate. For years, scientists have warned that the AMOC was slowing down, possibly nearing collapse. The Cold Blob is the most immediately visible proof of its decline, likely a result of Greenland’s melting glaciers, but research on the deep water current’s strength over recent years has varied wildly

The stakes could hardly be higher. Should the current break down, the most frightening predictions describe a world thrown into chaos: Drought could destroy India, South America, and Africa; the Eastern Seaboard of the United States would see dramatic sea level rise; and an arctic chill would spread across Europe.

Part of what makes AMOC’s behavior so hard to forecast is that consistent monitoring of the current didn’t begin until 2004, so the historical data is limited. When researchers run models to examine AMOC’s behavior in the past, they sometimes get baffling results. “The new models aren’t working for AMOC,” said David Thornalley, a paleoclimatologist at University College London, who wasn’t involved with the latest research. “Some people would say we don’t 100 percent know what AMOC did through the 20th century.”

Full Article

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Now, teams of government scientists are reporting widespread coral death, which they say is the worst bleaching to hit the state. There are still areas of live coral, and some bleached coral will recover, but as scientists gather data, the scale of mortality has left many shocked.

Dr Thomas Holmes coordinates the marine science program at the WA government’s Department of Biodiversity, Conservation and Attractions. [...] “I’m not afraid to use the word unprecedented,” he says.

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Archived link of the article

Thousands of tiny nematode worms can join up to form tentacle-like towers that can straddle large gaps or hitch rides on larger animals

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archived (Wayback Machine)

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The cave habitats of Tennessee and Kentucky have species that most will never see. Here are some of the unusual creatures found there.

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A species that was hunted to local extinction made a comeback on its historical range, scientists who witnessed the population recovery via satellite imagery said.

The wolverine, listed as endangered due to over-hunting in the 20th century, has returned to the forests of southern Finland, according to a paper published last month in Ecology and Evolution.

Wolverine populations are distributed throughout boreal regions in the northern hemisphere, including arctic and subarctic regions and western North America, the Wolverine Foundation noted.

Historically, in Europe, they could be found as far south as Norway, southern Sweden and northeast Poland. Today, wolverines are only found in the northern parts of Norway, Sweden, Finland and Russia.

In Finland, the wolverine was classified as endangered in the 1980s. While they were known to have inhabited southern parts of the country as recently as the 19th century, hunting eradicated the species from the region, according to researchers at Aalto University in Espoo, Finland.

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El Santuario Nacional Los Manglares de Tumbes es un área protegida del Perú que abarca una porción de la ecorregión del Golfo de Guayaquil, conocidos localmente como Manglares de Tumbes. Se sitúa en la sección más septentrional de la costa pacífica del país.

Antiguamente, estos manglares abarcaron unas 28 mil hectáreas, reduciéndose significativamente con el tiempo debido a la tala de bosques con el fin de establecer criaderos de langostinos.

Tiene una extensión de 2 972 hectáreas y fue creado el 2 de marzo de 1988 mediante decreto supremo N°018-88-AG. En el 2016 la UNESCO incluyó al Santuario Nacional Manglares de Tumbes como Zona Núcleo de la Reserva de Biósfera Noroeste Amotapes-Manglares.

Hoy en día este santuario ha adquirido su importancia dado que es única muestra representativa de mayor extensión de bosques de manglares en Perú.

Es más, no solo proporciona leña, estacas y puntales, sino que también es una barrera natural contra la erosión que producen las olas y mareas. Además, al producir una enorme cantidad de sedimentos y materia orgánica le va ganando terreno al océano.

También, como hemos dicho antes, allí se encuentran recursos que extraen los pescadores artesanales para la alimentación de la población local y constituyen un refugio para el cocodrilo de Tumbes (Crocodylus acutus) o cocodrilo americano, especie que se encuentra en vía de extinción.

Desarrollar un turismo sostenible es de vital importancia para su conservación y la de los pescadores artesanales que pueden hallar una fuente extra de ingresos y minimizar su impacto a la vez que conservan sus métodos tradicionales. Además un sector turístico fuerte y organizado sosteniblemente puede competir con las langostineras y ayudar a conservar el lugar.

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The link is the handbook of birds of India and Pakistan.

There were reports of the bird being seen but this is the first time it has been confirmed.

Now there will be an article that confirms this. Should be out soon enough.

https://youtu.be/4QvMPmJF5Wg Here is a yt video of the confirmation. The man is Dr. Waseem Ahmad Khan (Ph. D. Zoology). So a reliable source. Chairman of the Pakistan wildlife foundation too.

Asian_Openbill_taken_at_Lumphini_ParkBangkok_กสิณธร-ราชโอรส-1_236055970c

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New research finds clownfish shrink their bodies to survive warming oceans. Scientists observed some of the orange-striped fish shrank during a heat wave off the coast of Papa New Guinea.

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Research suggests pollinator buzzing sounds lead plants to increase their nectar production

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Get up close with the mole crab, a fascinating crustacean you can find (and catch) on your next trip to the beach.

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My favourite bird since I was a kid. Maybe my first favourite animal ever. Pretty much always remained so too.

African Hoopoes do not usually migrate as far north as Ireland, but it is believed that a weather phenomenon, known as Sahara Dust, has carried them here.

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Khorshid: The Everlasting Hope of Turan

Khorshid (The Sun), has managed to successfully raise all four of her cubs until early November. She is a record holder for successful motherhood among cheetahs in Iran, having given birth to three healthy litters. Khorshid is one of the main hopes for the continuation of cheetah reproduction in the heart of Turan.

The Asiatic Cheetah is an animal near and dear to my heart. I would absolutely love to see one in real life and desperately hope they dont go extinct. An absolutely beautiful cat.

th-3941568646

Just look at him ❤️

To add to this: The Iranian Cheetah Society is proud to announce the release of a comprehensive report on the status of the Asiatic Cheetah (Acinonyx jubatus venaticus) in Iran. This extensive study, conducted from 2021 to 2023, provides critical insights into the population dynamics, breeding patterns, and conservation challenges faced by this endangered species.

Key Highlights:

Population Insights: The study documented the presence of six female cheetahs, four male cheetahs, and 17 cubs in the Touran Biosphere Reserve, highlighting the region’s importance as a breeding habitat1. Conservation Challenges: The report underscores the urgent need for enhanced conservation efforts, including the installation of satellite collars and genetic studies, to ensure the survival of the Asiatic Cheetah. Research Findings: Over 797 images of cheetahs were captured, providing valuable data on their movement patterns and habitat use.

Sauce: https://www.wildlife.ir/en/download/asiatic-cheetah-population-monitoring-in-northern-habitats-2021-2023/

https://www.wildlife.ir/en/2023/11/15/khorshid-the-everlasting-hope-of-turan/

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High above Chicago, in the predawn dark, flew an airborne river of migratory birds. It was peak spring migration traffic, in late April, and the tiny travelers were arriving at one of the most perilous points along their journey.

These birds, inhabitants of forests and grasslands, do not perceive glass as solid and get confused by its reflections. Bright city lights seem to attract them, luring them into glassy canyons. The gleaming buildings of Chicago, curving along the shore of Lake Michigan, are especially lethal.

High above Chicago, in the predawn dark, flew an airborne river of migratory birds. It was peak spring migration traffic, in late April, and the tiny travelers were arriving at one of the most perilous points along their journey.

These birds, inhabitants of forests and grasslands, do not perceive glass as solid and get confused by its reflections. Bright city lights seem to attract them, luring them into glassy canyons. The gleaming buildings of Chicago, curving along the shore of Lake Michigan, are especially lethal.

https://archive.ph/incUu

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