Ten Endangered-Species Battles

10 Critical Endangered-Species Battles -- Wired Science

In theory, decisions about flora and fauna habitat are purely scientific. In practice, they're political. And that, in a nutshell, is the reality of the Endangered Species Act, passed in 1973 as part of a historic wave of legislation that both protects America's environmental heritage and provides a framework for settling conflicts.

Some say it does too little; others, that it intrudes too much. The arguments go 'round and 'round, and underscore a fundamental truth: In the Anthropocene Era, people decide nature's fate.

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Several Different Species Of Killer Whales Likely

Killer whale. Scientists report finding strong genetic evidence supporting the theory there are several species of killer whales (Orcinus orca, also known as orcas) throughout the world's oceans. (Credit: iStockphoto/Evgeniya Lazareva)

From Science Daily:

ScienceDaily (Apr. 22, 2010) — In a report published April 22 in the journal Genome Research, scientists report finding strong genetic evidence supporting the theory there are several species of killer whales (Orcinus orca, also known as orcas) throughout the world's oceans.

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Hawaiian Submarine Canyons Are Hotspots Of Biodiversity And Biomass For Seafloor Animal Communities

Large gorgonian observed at 650 m off the North Coast of Moloka i, dubbed "Cousin It." (Credit: Image courtesy of University of Hawaii at Manoa)

From Science Daily:

ScienceDaily (Apr. 11, 2010) — Underwater canyons have long been considered important habitats for marine life, but until recently, only canyons on continental margins had been intensively studied. Researchers from Hawaii Pacific University (HPU) and the Universtiy of Hawaii at Manoa (UHM) have now conducted the first extensive study of canyons in the oceanic Hawaiian Archipelago and found that these submarine canyons support especially abundant and unique communities of megafauna (large animals such as fish, shrimp, crabs, sea cucumbers, and sea urchins) including 41 species not observed in other habitats in the Hawaiian Islands.

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Gorillas Losing Battle Against Loggers And Hunters In Central Africa

From Times Online:

Gorillas in Central Africa are in danger from illegal logging, mining and from hunters killing great apes for meat, says a new report from the United Nations and Interpol.

In 2002 it was estimated that only 10 per cent of gorillas would remain by 2030.

“We fear now that the gorillas may become extinct from most parts of their range in perhaps 15 years,” said Christian Nellemann, of the UN Environmental Programme.

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Gorillas Extinct in Ten Years in Central Africa?

Rangers observe a mountain gorilla in the Democratic Republic of the Congo's Virunga National Park. Photograph by Brent Stirton, National Geographic Stock

From National Geographic:

Rise in Chinese timber demand, ape-meat eating, and mining blamed.

Gorillas may soon go extinct across much of central Africa, a new United Nations report says. Among the threats are surges in human populations, the ape-meat trade, and logging and mining as well as the spread of the Ebola virus and other diseases, the report says.

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Extinct Elephant Bird Of Madagascar Could Live Again

Egg laid by great elephant bird of Madagascar compared to a hen's egg Photo: JANE MINGAY

From The Telegraph:

Towering 10 feet into the air and weighing more than half a ton, it was the biggest bird that ever lived until French colonists wiped it out more than three hundred years ago.

But the giant elephant bird of Madagascar could be resurrected after scientists discovered how to extract DNA from ancient egg shells.

Genetic material from the bird along with extinct emus of Australia and moas of New Zealand have been collected by a new technique.

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Polar Bear And Its Cub Drift On Shrinking Ice 12 Miles From Land ... But Is It All It Seems?

Adrift: The polar bear cub snuggles against its mother as they drift 12 miles from land

From The Daily Mail:

A forlorn polar bear cub is comforted by its mother as they drift miles from shore on a rapidly shrinking ice floe.

The Arctic-dwelling animals have become an iconic cause for green campaigners, who claim dramatic images such as these prove that global warming is destroying the world.

But despite this image being released today, it was actually taken in August last year, when it is normal for coastal ice to naturally break up and melt.

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Threat to Monkey Numbers from Forest Decline

An Udzungwa red colobus monkey. (Credit: Andrew Marshall / University of York)

From Science Daily:

Science Daily (Feb. 27, 2010) — Monkey populations in threatened forests are far more sensitive to damage to their habitat than previously thought, according to new research.

An analysis of monkeys living in Tanzania's Udzungwa Mountains suggests that the impact of external factors, such as human activity, on species numbers is felt in forests as large as 40 square kilometres.

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Killer Whales Don't Usually Kill People

From Live Science:

News of a trainer being killed by a killer whale at SeaWorld Orlando today doesn't change the fact that these giants, while deadly predators, do not kill humans at sea.

"They have never killed a human in the wild," said Nancy Black, a marine biologist with Monterey Bay Whale Watch. That's mostly because, unlike sharks, killer whales don't frequent near-shore areas where people swim. (Even shark attacks on humans are generally accidental, experts say, with sharks mistaking humans for seals or other typical food.)

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Grizzly Bears Move Into Polar Bear Habitat In Manitoba, Canada

This is a grizzly Bear (Ursus arctos), photographed in Wapusk National Park, Manitoba, Canada, on August 9, 2008. (Credit: Linda Gormezano)

From Science Daily:

Science Daily (Feb. 23, 2010) — Biologists affiliated with the American Museum of Natural History and City College of the City University of New York have found that grizzly bears are roaming into what was traditionally thought of as polar bear habitat -- and into the Canadian province of Manitoba, where they are officially listed as extirpated. The preliminary data was recently published in Canadian Field Naturalist and shows that sightings of Ursus arctos horribilis in Canada's Wapusk National Park are recent and appear to be increasing in frequency.

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Half The Planet's Primates In Peril Due To The Destruction Of Their Habitat And Trade In Bushmeat

From The Daily Mail:

Half the world's species of monkey, gorilla and chimpanzee could soon disappear, experts have warned.

The destruction of their habitats and a thriving trade in bushmeat have pushed many to the brink of extinction, according to a report spearheaded by Bristol Zoo.

In parts of the Far East the proportion of primates at risk is as high as 90 per cent.

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Tigers Evolved With Snow Leopards, Gene Study Reveals

From The BBC:

The tiger may be more ancient and distinct than we thought.

Tigers are less closely related to lions, leopards and jaguars than these other big cats are to each other, according to a new comprehensive study.

The genetic analysis also reveals the tiger began evolving 3.2 million years ago, and its closest living relative is the equally endangered snow leopard.

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Altruistic Chimpanzees Adopt Orphans

The adult male chimpanzee Freddy carries his adopted son Victor on his back. Credit: Tobias Deschner, Max Planck Institute for Evolutionary Anthropology

From Live Science:

Chimpanzees can be altruistic just like humans, according to a new study that found 18 cases of orphaned chimps being adopted in the wild.

The kind-hearted chimp parents were discovered in the Taï forest in the West African country Ivory Coast. The adoptive caregivers, both male and female, devoted large amounts of time and effort to protecting their young charges, without any obvious gain to themselves.

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Fish Punish Fish For Bad Manners

Male cleaner fish will punish females when the females misbehave at mealtime, a new study finds. Here, the cleaner fish Labroides dimidiatus cleans the larger N. nigrosis. Credit: Richard Smith.

From Live Science:

Fish may dine underwater, but they still need to remember their manners at mealtime.

Males of a certain fish species will punish females when they misbehave while eating, a new study finds.

And the chastisement occurs even though the males are not directly affected by the female's trouble-making, indicating that these fish may exhibit a form of human social behavior known as third-party punishment, the researchers say.

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Coral Reefs Are Most Fecund Cradles Of Diversity

From New Scientist:

Coral reefs have generated more new kinds of animal than all other marine habitats put together. So concludes an analysis of the earliest fossils of more than 6000 sea-floor invertebrates, which found that reefs "gave birth" to close to 6 in 10 of the groups studied.

Coral reefs house a striking number and variety of organisms. Debate has raged since the 1970s over whether they provide the ideal conditions for new species to emerge or simply attract them from other habitats. Until now, the latter argument has tended to prevail.

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'Wildlife In Crisis' In Frozen UK

From The BBC:

Britain's wildlife is being pushed to "the brink of a crisis" as sub-zero temperatures continue to grip the nation, according to conservationists.

The Royal Society for the Protection of Birds (RSPB) is organising emergency feeding of several threatened species, including bitterns and cirl buntings.

The RSPB is also asking people to feed garden birds, which are struggling to find food in the freezing weather.

The harsh winter could hit bird numbers "for many years to come", they warn.

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Polar Bears Forced To Land And Water

Polar bears depend on sea ice for hunting, breeding and denning. The bears wait for seals to pop up through breathing holes in the ice, but since the ice is melting earlier and earlier in the year, polar bears are shifting there habitat to land and water, and may be missing out on hunting opportunities. Credit: USGS

From Live Science:

As Arctic sea ice melts, polar bears are changing their habitat, shifting from their preferred ice hunting grounds to land and open water, according to a new long-term study.

The findings have implications for people as well as polar bears, since the shift makes it more likely that humans will encounter these large animals on land, the researchers say.

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Two Killer Whale Types Found In UK Waters

Forming a new species? The 'type 2' dolphin hunting killer whales.

From The BBC:

Scientists have revealed that there is not one but two types of killer whale living in UK waters.

Each differs in its appearance and diet, with males of one type being almost two metres longer than the other.

The killer whales could be at an early stage of becoming two separate species, the researchers say.

The international group of scientists has published its results in the journal Molecular Ecology.

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All Creatures' Calls Are Somewhat Alike

An analysis of over 500 animal species shows that the sounds they make are pretty similar.
Credit: Stockxpert

From Live Science:

Mother Nature offers up a cacophony of diverse sounds. But after examining the calls of hundreds of species from cricket chirps to chimp hoots, scientists have found they aren't so different from one another.

Their research on the calls made by nearly 500 animal species has led to simple mathematical models that can predict an animal's sounds based on the rate at which that individual takes up and uses energy.

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Where Did San Francisco's Sea Lions Go?