World’s rarest mammals, amphibians on new map


From Wildlife Extra:

World’s rarest and most extraordinary species mapped for the first time

Sunda pangolin

Sunda pangolin occurs in Southeast Asia and is threatened by illegal poaching for its meat and for its scales – Used in traditional medicine. Courtesy of Carnivore and Pangolin Conservation Programme

EDGE species added to the map

May 2013. The black-and-white ruffed lemur, Mexican salamander and Sunda pangolin all feature on the first map of the world’s most unique and threatened mammals and amphibians, created by the Zoological Society of London(ZSL).

Scientists pinpointed areas of the world where Evolutionarily Distinct and Globally Endangered (EDGE) mammals and amphibians occur. Regions containing the highest concentrations of these species are highlighted as global conservation priorities.

Different regions for different groups
The map reveals that high priority conservation areas for mammals and amphibians are different, reflecting the varied evolutionary histories and threats facing the two groups. For mammals, management efforts are best focused in Southeast Asia, southern Africa and Madagascar. For amphibians, central and southern America are highlighted as priorities.

Very few protected areas
Professor Jonathan Baillie, ZSL’s Director of Conservation says: “The results of the mapping exercise are alarming. Currently only five percent of the areas we’ve identified as priorities for EDGE mammals and 15 percent of the EDGE amphibian areas are protected.

“These areas highlighted should all be global conservation priorities because they contain species that are not only highly threatened but also unique in the way they look, live and behave. These new maps will inform the development of larger-scale work to help secure the future of some of the most remarkable species on Earth,” Professor Baillie added.

The Mexican salamander, or axolotl, is critically endangered due to urbanization, polluted waters, and the introduction of non-native fish which eat the axolotl’s young. Scroll down to see the map of EDGE amphibians

The Mexican salamander, or axolotl, is critically endangered due to urbanization, polluted waters, and the introduction of non-native fish which eat the axolotl’s young. Scroll down to see the map of EDGE amphibians.

Black-and-white ruffed lemur & Sunda pangolin
Madagascar’s black-and-white ruffed lemur is the largest lemur in the world and is threatened by hunting and the loss of its forest habitat to logging, mining and cutting and burning for agriculture. The Sunda pangolin, also known as the scaly anteater, occurs in Southeast Asia and is threatened by illegal poaching for its meat which is a culinary delicacy, as well as its scales which are thought to have high medicinal value. Other mammal species occurring in priority areas include the black rhino and western lowland gorilla.

Amphibians
Amphibians are facing a terrifying rate of extinction making them the most threatened vertebrates in the world. The Mexican salamander, or axolotl, is critically endangered due to urbanization, polluted waters, and the introduction of non-native fish which eat the axolotl’s young. With the aid of the global map of EDGE amphibians, it will now be possible to concentrate efforts in countries such as, Mexico, Costa Rica and Guatemala where the most distinct and threatened species are found.

Dr. Kamran Safi, lead author of the paper from the Max Planck Institute for Ornithology says: “This is the first global map to take into account species’ uniqueness as well as threat. Now that we’ve identified EDGE priority areas for mammals and amphibians we can more effectively continue to ensure their protection.”

It is critical that conservationists prioritise the allocation of limited resources for the best conservation outcomes. ZSL’s EDGE of Existence programme has already launched targeted conservation projects for more than 40 EDGE species around the world.

The research paper is published in PLOS ONE.

Mammalian and amphibian EDGE zones

Monarch butterflies in trouble


This video is called Complete Life Cycle of the Monarch Butterfly.

From Wildlife Extra:

Monarch butterfly numbers decline again

Drought conditions and historic wildfires lead to more decline

March 2013. Bad news again for the Monarch butterfly: Drought conditions and historic wildfires the past few years continue to decrease their numbers as they wing across Texas this spring. Worse news: milkweed plants – the only kind they need to survive – are also not in plentiful supply, says a Texas A&M University Monarch watcher.

Craig Wilson, a senior research associate in the Center for Mathematics and Science Education and a longtime butterfly enthusiast, says reports coming from Mexico where the Monarchs have their breeding grounds show their numbers are significantly down, a disturbing trend during much of the past decade.

Wilson explains “The severe drought in Texas and much of the Southwest continues to wreak havoc with the number of Monarchs. The conditions have been dry both here and in Mexico in recent years. It takes four generations of the insects to make it all of the way up to Canada, and because of lack of milkweed along the way, a lot of them just don’t make it.”

Drought hampering milkweed food

The dry conditions and changing farming practices are hampering the growth of milkweed, the only type of plant the Monarch will digest as it makes its trip north. Texas has had dozens of wildfires in the past few years that have hampered milkweed growth, and even though there are more than 30 types of milkweed (Asclepiadaceae) in the state, the numbers are not there to sustain the Monarchs as they start their 2,000-mile migration trip to Canada. Increased use of pesticides is also adversely affecting milkweed production, he notes.

“But if people want to help, they can pick up some milkweed plants right now at local farmer’s cooperative stores,” he says, “and this would no doubt be a big boost to help in their migration journey.”

The Monarch reserves are in the Mexican state of Michoacan. It’s an area where tens of millions of Monarchs spend the winter and mate before heading north, Wilson points out.

“On a recent visit to the Monarch overwintering sites in Michoacan, former President Jimmy Carter said: ‘The Monarch butterfly unites the three countries of North America in peace.

It is an ambassador of peace which requires protected areas and ecosystems that are preserved through sustainable agricultural and forestry practices. We need to work together to maintain a healthy and balanced ecosystem for all North America,” Wilson adds.

“It is important to have a national priority of planting milkweed to assure there will be Monarchs in the future,” Wilson believes. “If we could get several states to collaborate, we might be able to provide a ‘feeding’ corridor right up to Canada for the Monarchs.”

Wilson is currently adding a variety of milkweed plants to the existing Cynthia Woods Mitchell Garden on the Texas A&M campus. He recommends the following sites for Monarch followers: Journey North, Texas Monarch Watch and Monarch Watch.

For more information about monarch butterflies and their migration, visit www.monarchwatch.org.

Nomads of the Wind and Other Wonders of the Butterfly World – Photographic Story of the Monarch Butterfly Migration. There is a great deal that we still do not know about the Monarch Butterfly, but this book presents the extent of our knowledge in stunning fashion. Many of the secrets of the extraordinary migration that the Monarchs make are yet to be unlocked … Read more here.

Caribbean fish citizen science


This video from Mexico is called Fish at the Coral Reef – Mayan Riviera.

From the University of East Anglia in Britain:

Marine Diversity Study Proves Value of Citizen Science

Mar. 12, 2013 — Citizen science surveys compare well with traditional scientific methods when it comes to monitoring species biodiversity — according to new research from the University of East Anglia.

Research published today in the journal Methods in Ecology and Evolution shows that methods to record marine diversity used by amateurs returned results consistent with techniques favoured by peer-reviewed science.

The findings give weight to the growing phenomenon of citizen science, which sees data crowd-sourced from an army of avid twitchers, divers, walkers and other wildlife enthusiasts.

The field study compared methods used by ‘citizen’ SCUBA divers with those used by professional scientists, to measure the variety of fish species in three Caribbean sites.

The divers surveyed the sites using two methods — the ‘belt transect’, used in peer reviewed fish diversity studies, and the ‘roving diver technique’, used by the Reef Environmental Education Foundation (REEF) volunteer fish survey project.

Two teams of 12 divers made 144 separate underwater surveys across the sites over four weeks.

While the traditional scientific survey revealed sightings of 106 different types of fish, the volunteer technique detected greater marine diversity with a total of 137 in the same waters.

Dr Ben Holt, from UEA’s school of Biological Sciences, led the research in partnership with the Centre for Marine Resource Studies in the Caribbean and the University of Copenhagen, Denmark.

He said: “The results of this study are important for the future of citizen science and the use of data collected by these programs. Allowing volunteers to use flexible and less standardised methods has important consequences for the long term success of citizen science programs. Amateur enthusiasts typically do not have the resources or training to use professional methodology. Our study demonstrates the quality of data collected using a volunteer method can match, and in some respects exceed, protocols used by professional scientists.

“Enlisting the help of a large pool of volunteers helps professional researchers collect valuable data across many ecosystems.

“The popularity of SCUBA diving has resulted in monitoring of the underwater environment on a scale that was previously impossible. For example, the REEF method has been used by volunteers in more than 160,000 underwater surveys across the world. It would have cost many millions of pounds for professionals to have undertaken the same work.

“Very few, if any, scientific groups can collect data on the scale that volunteer groups can, so our proof that both methods return consistent results is very encouraging for citizen science in general.

“I think we will really see the value of volunteer schemes increase in future. We’re living in a world that’s changing very significantly. Environmental changes are having a big impact on ecosystems around us so we need to harness new ways of measuring the effect.

“For example Lion fish is an invasive species which was not in the Caribbean until roughly 10 years ago. They have now become a real problem in many areas and this invasion has been tracked using volunteer data. Following our study, scientists can have more confidence when using these data to consider the impact of threats, such as invasive species, on the wider natural communities.

“It is important to note that our study does not consider the abilities of the individuals performing the surveys and this is also an important consideration for any large scale biodiversity program. By addressing these issues we can make important steps towards enabling the large pool of volunteer enthusiasts to help professional researchers by collecting valuable data across many ecosystems.”

The research was carried out in under water sites close to South Caicos in the Turks and Caicos Islands.

Mexican howler monkeys in trouble


This video is called Wild Howler Monkeys at Iberostar Tucan Quetzal Mexico.

From Wildlife Extra:

Howler monkeys increasingly stressed by human disturbance

New research shows that disturbed habitats are resulting in increasingly poor diets for monkeys, and that the additional time and energy required to find food is causing concerning levels of stress in already critically endangered primates.

January 2013. Endangered Mexican howler monkeys are consuming more leaves and less fruit as a result of habitat disturbance by humans which is forcing them to invest much more time foraging for sustenance and leading to increased ‘stress’ levels, as detected through hormone analysis.

The research took place in the tropical rainforests of the Mexican state of Veracruz, which are being deforested and fragmented by human activity – primarily the clearing of forest for cattle raising. It shows that increases in howler monkey ‘travel time’ – the amount of time needed to find requisite nourishment – are leading to increases in levels of stress hormones called glucocorticoids. These hormones are not only indicators of stress, but are also known to relate to diminished reproductive success and lower survival rates.

Researchers believe the study could serve as a model for behavioural change and resulting health implications more generally in primates living in habitats disturbed by human activities, such as deforestation.

Dr Jacob Dunn from Cambridge’s Department of Biological Anthropology, who carried out the research, said “Howlers are arboreal primates, that is to say they spend their wholes lives in the trees. As forests are fragmented, the howlers become cut off, isolated on forest ‘islands’ that increasingly lack the fruit which provide an important component of their natural diet. This has led to the monkeys expending ever more time and effort foraging for food, often increasing leaf consumption when their search is, quite literally, fruitless.”

Fruit cycle

Fruit occurs in natural cycles, and the monkeys will naturally revert to ‘fallback’ foods, including leaves, when fruit is scarce. But as habitats shrink, and fruit is harder to find, leaves from second-choice plants, such as lianas, have increased in the Mexican howlers’ diet.

While leaves may sound like a plentiful resource in a rainforest, many leaves are difficult to digest and can be filled with toxins – a natural defence mechanism in most trees and plants – so the monkeys are actually forced to spend more time seeking out the right foliage to eat, such as new shoots which are generally less toxic.

Fruit is vital to monkey diet

Dunn added “The traditional view was that the leaves exploited by howler monkeys were an abundant food source – but this is not the case. The monkeys rely much more heavily on fruit than previously believed, and when turning to foliage for food – as they are increasingly forced to do – they have to be highly selective in the leaves they consume, visiting lots of different trees. This leads to the increased ‘travel time’ and consequent high levels of stress we are seeing in these primates as their habitats disintegrate.”

Faeces analysed

As trying to catch the howlers to examine them would in itself be highly stressful for the animal, the best way of evaluating stress levels in wild primates is by analysing their faeces for glucocorticoid stress hormones, which are general to all vertebrates. Through statistical modelling, the researchers were able to determine that it is the ‘travel time’ – rather than the increased foliage intake – causing high levels of stress.

“Monkeys in disturbed habitats suffering high levels of stress is in itself unsurprising perhaps, but now we think we know why, the root cause from the primates perspective. Our results also highlight the importance of preserving and planting fruit trees – particularly those species such as figs that can produce fruit during periods of general fruit scarcity – for the conservation of howler monkeys¨ said Dr Jurgi Cristóbal-Azkarate, also from Cambridge, who led the research in collaboration with Dr Joaquim Vea from the University of Barcelona.

The authors say that further studies are required to fully understand the significance of increases in stress in howler monkeys living in disturbed habitats. “Determining the full relevance of our results for the conservation of primates living in forest fragments will require long-term studies of stress hormones and survival”, said Dunn.

The research was published in the International Journal of Primatology.

California condor dies, killed by lead?


This video is called Flying giants–rare California condors return to Utah skies.

From Wildlife Extra:

Dead condor found in Zion National Park in Utah

Lead poisoning suspected

January 2013. The Peregrine Fund, a driving force behind the conservation of Californian condors, had been hopeful that a pair of condors in Zion National Park would produce the first offspring in the state for many years.

A Peregrine Fund spokesman said “Our hopeful pairing of adult condors 299 and 343 to be the first successful Utah pair has been hampered over the past few years by us having to treat one of them for lead poisoning during breeding season. Sadly, we have now found the adult 9-year-old female (Condor 343) dead in Zion National Park in Utah. This is a major step back from Utah’s first breeding.”

Official necropsy results are pending to determine cause of death, but this year’s trapping results show a very high rate of lead poisoning in almost all of the Utah foraging birds.

Condor population

There are just 400 Californian condors alive today, of which around 175 are in captivity. The California condor has recovered from only 22 birds left in the world in 1982 to around 400 today. The original 22 birds were captured in an effort to breed and save the species. Condors bred and raised in captivity are now periodically released at sites in California, Mexico and at the Vermilion Cliffs in Arizona.

Mexican composer Ema Elena Valdelamar dies


This music video is called Emma Elena Valdelamar – Mucho Corazón.

From Prensa Latina news agency:

Mexico, Dec 24 – Mexican composer Ema Elena Valdelamar, whose works were sang by popular singers through the years, died, reported the media.

Mucho corazón, Cheque en blanco, Mil besos, Por qué no fuiste tú and Vivir sin tí are some of the most relevant songs, widely heard nationally and internationally.

Her compositions, mostly boleros, have been sung by Luis Miguel, Paquita la del Barrio, Benny Moré, Pedro Vargas, Maria Victoria and Marco Antonio Muñiz, among other celebrities.

Her latest tribute was held last October by the National Sound Archive, in the framework of the program Mexican Popular Music through her Songs.

Valdelamara’s body lies in a funeral in the south of the capital, and various figures of the national cultural will go.

Humpback whale watching on Dutch coast


This video from Mexico is called Humpback Whale Shows AMAZING Appreciation After Being Freed From Nets.

Translated from NOS TV in the Netherlands:

“Humpback to the left of the flag!”

Thursday, December 20, 2012, 16:56

By reporter Pauline Broekema

He is from Sousse, Tunisia. Grew up near the sea and is used to marine animals. But for Hesni Sougnir, owner of the beachbar the Weather Vane on the boulevard in Egmond aan Zee this is a unique day. He interrupts his work regularly. In his blue apron he watches intensively behind the surf. In front of his bar the two whales swim. He can not believe his luck.

Regularly, whale watchers come. The humpback whale spotters are of the helpful kind. “To the left of the flag!” it sounds. “Keep the binoculars focused on the surf, then you will see it there!”

Excellent condition

A passerby without binoculars can borrow one. Though there is little to see of the humpback, still the sudden blow fountain is an unexpected sensation. A fin that suddenly pops up out of the sea creates turbulence on the coast. Sougnir has many nature lovers among its customers. “They have been waiting for this for thirty years,” he says.

It’s probably a mother with a baby. This morning, the men of the Egmond lifeboat were close to them in an open boat. “The animals were a in fine condition, as far as I could see” says Henk Biesboer of the lifeboat.