ApocaDocuments (5) for the "Species Collapse" scenario from this week
[see full week] ~ [see full Species Collapse scenario and stories]
|
Sat, Apr 16, 2011
from BBC:
Humpback whale song spreads to other whales
Recordings of male humpback whales have shown that their haunting songs spread through the ocean to other whales.
Researchers in Australia listened to hundreds of hours of recordings gathered over more than a decade.
These revealed how a specific song pattern, which originated in Eastern Australia, had passed "like Chinese whispers" to whale populations up to 6,000km away in French Polynesia....
The research team, led by Ellen Garland from the University of Queensland, say the findings show the animals transmit such "cultural trends" over huge distances....
Using sound analysis software, Ms Garland and her colleagues discovered that four new songs that had emerged in a population in Eastern Australia gradually spread eastwards.
Within two years of this new song being invented, whales in French Polynesia were singing this same "version".
"It's a culturally-driven change across a vast scale," said Ms Garland....
"We can only begin to speculate what those factors might be, but exploring this will certainly open a new understanding into the lives of these truly cosmopolitan, singing giants."
...
|
Too bad they're just dumb animals, or we might not hunt 'em.
ApocaDoc
permalink
|
Wed, Apr 13, 2011
from Basque Research:
In recent decades, the number of alien species in Navarre has tripled
In concrete, the experts involved are focusing on endemic freshwater species - euryhalines and diadromes - fish that can live in both fresh and salty water (such as salmon and eels)....
In this sense, it is striving to increase awareness of and interest in autochthonous fish species under threat due to a number of factors. Amongst the most serious, points out Mr Miranda, is the alteration of the habitat caused by hydraulic works, water extraction, industrial waste dumping, the extraction of sand or the canalisation of riverbeds. "Moreover, particularly serious is the introduction of alien species, which causes the greatest impact", he stressed.
According to the expert, invasive fish fed into our lakes and rivers put the survival of autochthonous Iberian Ichthyofauna in danger: "In fact, biological invasions are the second great cause of loss of biodiversity in the world, being especially damaging to freshwater systems". This is the case of predatory species such as black bass, pike or catfish, all of which are present in rivers in Navarre....
"This is the case of bleak (alburon) - possibly introduced as bait from France - and which in 20 years has become the dominant species over all the middle-range and lower stretches of the Ebro river basin and which, on competing with the nose fish (madrilla), has made the latter's numbers plummet throughout the zone". ...
|
Ironically, this English is written by a non-native speaker.
ApocaDoc
permalink
|
Tue, Apr 12, 2011
from Discovery News:
Penguin, Krill Populations in Freefall
Numbers of Chinstrap and Adelie penguins in the Antarctic Peninsula region have dropped by more than 50 percent in the last 30 years, driven mainly by dramatic declines in supplies of tiny, shrimp-like krill, their main prey, says a new study.
Krill, meanwhile, have declined by 40 to 80 percent, due primarily to rapidly warming temperatures in the area -- the South Shetland Islands near the tip of the Antarctic Peninsula and nearby sites.
This is one of the fastest-warming places on the planet with winter mean temperatures some 10 degrees Fahrenheit warmer now than in pre-industrial times....
The krill rely on phytoplankton growing in mats on the underside of sea ice for food at critical stages, he said.
"The young krill that are spawned in the Antarctic summer can't survive the winter without food," he said. "Once they get one year or older they can fast through the winter. We would get these long stretches of two, three or four warm, ice-free winters and there would be no survival of krill from the year before."
"We put together the pieces of the puzzle and said what's driving the penguin declines is a change in climate," he concluded. ...
|
By grilling the world, we're krilling ourselves.
ApocaDoc
permalink
|
Tue, Apr 12, 2011
from Telegraph.co.uk:
Rare fish carried up a mountain on backs of llamas to escape global warming
The endangered vendace, that has been in Britain since the Ice Age, is in danger of dying out as lakes and rivers warm up because of man made global warming.
To ensure the species survival, the UK's environmental watchdog took eggs from Derwentwater in Cumbria, thought to be the only remaining site where the fish are found in England and Wales.
They then took 25,000 young fish from the hatchery to a cooler lake higher up the mountains of the Lake District, Sprinkler Tarn, to establish a new 'refuge' population that is more likely to survive warming temperatures.
Because the route to the lake is so rocky and uneven, it was impossible to use conventional transport like a 4x4 motorbike or landrover. So, the fish were given a ride during part of the two-hour trek by sure-footed llamas from a local charity. The journey was finished by fisheries officers on foot to ensure none of the smarts were spilt. ...
|
That'll work. For awhile.
ApocaDoc
permalink
|
Mon, Apr 11, 2011
from Center for Biological Diversity, tip via DesdemonaDespair:
Bat-killing White-nose Disease Spreads to Ohio, New Brunswick
Bats in Ohio have now been found with white-nose syndrome, a disease that has been sweeping through bat populations in the eastern United States since 2006. In Maryland, biologists found the disease in a second county, after it first appeared in that state last winter. Also this week, Canadian officials reported the first discovery of the lethal bat malady in New Brunswick. White-nose syndrome, or the pathogenic fungus associated with it, has now been confirmed in 17 states and three provinces. The fast-moving disease has already killed more than 1 million bats in North America.
"This disease is burning through our bat populations like a five-alarm fire," said Mollie Matteson, a conservation advocate at the Center for Biological Diversity, which has pushed for additional research funding of the disease and urged widespread bat-cave closures. "But right now, all we've got from our wildlife agencies is the equivalent of a couple of rusty fire trucks barely out of the station."...
"What a lot of people don't realize is that there's much more than just bats at stake, and we don't have a moment to spare in saving them," said Matteson....
To date, the bat-killing fungus has been found as far west as western Oklahoma, bringing it closer to Seattle and Los Angeles than the disease's initial epicenter near Albany, N.Y. ...
|
These bats are canaries in a coal fire.
ApocaDoc
permalink
|
|
Other
Weeks' Archived
ApocaDocuments:
Sep 26 - Dec 31, 1969
Sep 19 - Sep 26, 2011
Sep 12 - Sep 19, 2011
Sep 5 - Sep 12, 2011
Aug 29 - Sep 5, 2011
Aug 22 - Aug 29, 2011
Aug 15 - Aug 22, 2011
Aug 8 - Aug 15, 2011
Aug 1 - Aug 8, 2011
Jul 25 - Aug 1, 2011
Jul 18 - Jul 25, 2011
Jul 11 - Jul 18, 2011
Jul 4 - Jul 11, 2011
Jun 27 - Jul 4, 2011
Jun 20 - Jun 27, 2011
Jun 13 - Jun 20, 2011
Jun 6 - Jun 13, 2011
May 30 - Jun 6, 2011
May 23 - May 30, 2011
May 16 - May 23, 2011
May 9 - May 16, 2011
May 2 - May 9, 2011
Apr 25 - May 2, 2011
Apr 18 - Apr 25, 2011
Apr 11 - Apr 18, 2011
Apr 4 - Apr 11, 2011
Mar 28 - Apr 4, 2011
Mar 21 - Mar 28, 2011
Mar 14 - Mar 21, 2011
Mar 6 - Mar 14, 2011
Feb 27 - Mar 6, 2011
Feb 20 - Feb 27, 2011
Feb 13 - Feb 20, 2011
Feb 6 - Feb 13, 2011
Jan 30 - Feb 6, 2011
Jan 23 - Jan 30, 2011
Jan 16 - Jan 23, 2011
Jan 9 - Jan 16, 2011
Jan 2 - Jan 9, 2011
Dec 26 - Jan 2, 2011
Dec 19 - Dec 26, 2010
Dec 12 - Dec 19, 2010
Dec 5 - Dec 12, 2010
Nov 28 - Dec 5, 2010
Nov 21 - Nov 28, 2010
Nov 14 - Nov 21, 2010
Nov 7 - Nov 14, 2010
Nov 1 - Nov 7, 2010
Oct 25 - Nov 1, 2010
Oct 18 - Oct 25, 2010
Oct 11 - Oct 18, 2010
Oct 4 - Oct 11, 2010
Sep 27 - Oct 4, 2010
Sep 20 - Sep 27, 2010
Sep 13 - Sep 20, 2010
Sep 6 - Sep 13, 2010
Aug 30 - Sep 6, 2010
Aug 23 - Aug 30, 2010
Aug 16 - Aug 23, 2010
Aug 9 - Aug 16, 2010
Aug 2 - Aug 9, 2010
Jul 26 - Aug 2, 2010
Jul 19 - Jul 26, 2010
Jul 12 - Jul 19, 2010
Jul 5 - Jul 12, 2010
Jun 28 - Jul 5, 2010
Jun 21 - Jun 28, 2010
Jun 14 - Jun 21, 2010
Jun 7 - Jun 14, 2010
May 31 - Jun 7, 2010
May 24 - May 31, 2010
May 17 - May 24, 2010
May 10 - May 17, 2010
May 3 - May 10, 2010
Apr 26 - May 3, 2010
Apr 19 - Apr 26, 2010
Apr 12 - Apr 19, 2010
Apr 5 - Apr 12, 2010
Mar 29 - Apr 5, 2010
Mar 22 - Mar 29, 2010
Mar 15 - Mar 22, 2010
Mar 7 - Mar 15, 2010
Feb 28 - Mar 7, 2010
Feb 21 - Feb 28, 2010
Feb 14 - Feb 21, 2010
Feb 7 - Feb 14, 2010
Jan 31 - Feb 7, 2010
Jan 24 - Jan 31, 2010
Jan 17 - Jan 24, 2010
Jan 10 - Jan 17, 2010
Jan 3 - Jan 10, 2010
Dec 27 - Jan 3, 2010
Dec 20 - Dec 27, 2009
Dec 13 - Dec 20, 2009
Dec 6 - Dec 13, 2009
Nov 29 - Dec 6, 2009
Nov 22 - Nov 29, 2009
Nov 15 - Nov 22, 2009
Nov 8 - Nov 15, 2009
Nov 1 - Nov 8, 2009
Oct 26 - Nov 1, 2009
Oct 19 - Oct 26, 2009
Oct 12 - Oct 19, 2009
Oct 5 - Oct 12, 2009
Sep 28 - Oct 5, 2009
Sep 21 - Sep 28, 2009
Sep 14 - Sep 21, 2009
Sep 7 - Sep 14, 2009
Aug 31 - Sep 7, 2009
Aug 24 - Aug 31, 2009
Aug 17 - Aug 24, 2009
Aug 10 - Aug 17, 2009
Aug 3 - Aug 10, 2009
Jul 27 - Aug 3, 2009
Jul 20 - Jul 27, 2009
Jul 13 - Jul 20, 2009
Jul 6 - Jul 13, 2009
Jun 29 - Jul 6, 2009
Jun 22 - Jun 29, 2009
Jun 15 - Jun 22, 2009
Jun 8 - Jun 15, 2009
Jun 1 - Jun 8, 2009
May 25 - Jun 1, 2009
May 18 - May 25, 2009
May 11 - May 18, 2009
May 4 - May 11, 2009
Apr 27 - May 4, 2009
Apr 20 - Apr 27, 2009
Apr 13 - Apr 20, 2009
Apr 6 - Apr 13, 2009
Mar 30 - Apr 6, 2009
Mar 23 - Mar 30, 2009
Mar 16 - Mar 23, 2009
Mar 9 - Mar 16, 2009
Mar 1 - Mar 9, 2009
Feb 22 - Mar 1, 2009
Feb 15 - Feb 22, 2009
Feb 8 - Feb 15, 2009
Feb 1 - Feb 8, 2009
Jan 25 - Feb 1, 2009
Jan 18 - Jan 25, 2009
Jan 11 - Jan 18, 2009
Jan 4 - Jan 11, 2009
Dec 28 - Jan 4, 2009
Dec 21 - Dec 28, 2008
Dec 14 - Dec 21, 2008
Dec 7 - Dec 14, 2008
Nov 30 - Dec 7, 2008
Nov 23 - Nov 30, 2008
Nov 16 - Nov 23, 2008
Nov 9 - Nov 16, 2008
Nov 2 - Nov 9, 2008
Oct 27 - Nov 2, 2008
Oct 20 - Oct 27, 2008
Oct 13 - Oct 20, 2008
Oct 6 - Oct 13, 2008
Sep 29 - Oct 6, 2008
Sep 22 - Sep 29, 2008
Sep 15 - Sep 22, 2008
Sep 8 - Sep 15, 2008
Sep 1 - Sep 8, 2008
Aug 25 - Sep 1, 2008
Aug 18 - Aug 25, 2008
Aug 11 - Aug 18, 2008
Aug 4 - Aug 11, 2008
Jul 28 - Aug 4, 2008
Jul 21 - Jul 28, 2008
Jul 14 - Jul 21, 2008
Jul 7 - Jul 14, 2008
Jun 30 - Jul 7, 2008
Jun 23 - Jun 30, 2008
Jun 16 - Jun 23, 2008
Jun 9 - Jun 16, 2008
Jun 2 - Jun 9, 2008
May 26 - Jun 2, 2008
May 19 - May 26, 2008
May 12 - May 19, 2008
May 5 - May 12, 2008
Apr 28 - May 5, 2008
Apr 21 - Apr 28, 2008
Apr 14 - Apr 21, 2008
Apr 7 - Apr 14, 2008
Mar 31 - Apr 7, 2008
Mar 24 - Mar 31, 2008
Mar 17 - Mar 24, 2008
Mar 10 - Mar 17, 2008
Mar 2 - Mar 10, 2008
Feb 24 - Mar 2, 2008
Feb 17 - Feb 24, 2008
Feb 10 - Feb 17, 2008
Feb 3 - Feb 10, 2008
Jan 27 - Feb 3, 2008
Jan 20 - Jan 27, 2008
Jan 13 - Jan 20, 2008
Jan 6 - Jan 13, 2008
Dec 30 - Jan 6, 2008
Dec 23 - Dec 30, 2007
Dec 16 - Dec 23, 2007
Dec 9 - Dec 16, 2007
Dec 2 - Dec 9, 2007
|
