19 thoughts on “The ultimate cute bats

  1. Chiroptera says:

    12/3/14: “Scientists demonstrate existence of 3D compass in bat brain” http://uncovermichigan.com/content/22185-scientists-demonstrate-existence-3d-compass-bat-brain Research revealed brains of bats consist of neurons that sense the direction in which their head is pointed towards and hence support its navigation in 3D space by calculating a sense of the vertical direction unified with the horizontal. “It was then revealed that in neural compass, these directions are computed independently at different levels of complexity.” See also http://www.haaretz.com/life/science-medicine/1.629812

  2. Alfred says:

    White-Nose Syndrome fungus introduced from Europe to North America http://www.sciencedirect.com/science/journal/09609822# The investigation of factors underlying the emergence of fungal diseases in wildlife has gained significance as a consequence of drastic declines in amphibians, where the fungus Batrachochytrium dendrobatidis has caused the greatest disease-driven loss of biodiversity ever documented [1]. Identification of the causative agent and its origin (native versus introduced) is a crucial step in understanding and controlling a disease [2]. Whereas genetic studies on the origin of B. dendrobatidis have illuminated the mechanisms behind the global emergence of amphibian chytridiomycosis [3], the origin of another recently-emerged fungal disease, White-Nose Syndrome (WNS) and its causative agent, Pseudogymnoascus destructans, remains unresolved [2,4]. WNS is decimating multiple North American bat species with an estimated death toll reaching 5–6 million. Here, we present the first informative molecular comparison between isolates from North America and Europe and provide strong evidence for the long-term presence of the fungus in Europe and a recent introduction into North America. Our results further demonstrate great genetic similarity between the North American and some European fungal populations, indicating the likely source population for this introduction from Europe.

    • Mike23 says:

      The federal government said Wednesday that it is listing the northern long-eared bat as threatened, giving new protections to a species that has been nearly wiped out in some areas by the spread of a fungal disease. White-nose syndrome was first discovered among bats in a cave near Albany, N.Y., in 2006, and has since killed millions of bats in the Northeast, South and Midwest. http://www.nytimes.com/2015/04/02/us/long-eared-bat-gets-federal-protection.html

    • Update says:

      The fungus behind white-nose syndrome, a disease that has ravaged bat populations in North America, may have an Achilles’ heel: UV light. White-nose syndrome has spread steadily for the past decade and is caused by the fungus Pseudogymnoascus destructans, known as P. destructans or Pd. (USDA Forest Service – Northern Research Station Jan 2, 2017) https://www.eurekalert.org/pub_releases/2018-01/ufs–lft010218.php In a study published on Jan. 2 in the journal Nature Communications titled “Extreme sensitivity to ultra-violet light in the fungal pathogen causing white-nose syndrome of bats,” the research team suggests that P. destructans is likely a true fungal pathogen of bats that evolved alongside bat species in Europe and Asia for millions of years, allowing Eurasian bats to develop defenses against it. In the course of comparing P. destructans to six closely related non-pathogenic fungi, researchers discovered that P. destructans is unable to repair DNA damage caused by UV light, which could lead to novel treatments for the disease. The study, which was funded by the U.S. Fish and Wildlife Service, is available at: https://www.nature.com/articles/s41467-017-02441-z

  3. Lytle Adams says:

    “In order to roost upside down on cave ceilings or tree limbs, bats need to perform an aerobatic feat unlike anything else in the animal world. Researchers from Brown University have shown that it’s the extra mass in bats’ beefy wings that makes the maneuver possible. By flapping both wings with one folded slightly toward their bodies, bats shift their center of mass to perform a flip.” http://www.eurekalert.org/pub_releases/2015-11/bu-buw111215.php (see images) “…how do bats get themselves in position to land?” Using a special flight enclosure, high-speed cameras and some sophisticated computer modeling, the researchers showed that it has a lot to do with wing mass and inertia. Bats’ wings are heavy, hand-like assemblages of bone, muscles, joints, tendons and skin. By throwing that extra wing weight around in very precise ways, bats generate inertial forces in order to reorient themselves, rather than relying on the aerodynamic forces generated by pushing against the air. It’s similar, Breuer says, to the way high divers shift their weight to perform flips and twists, or the way cats reorient themselves to land feet-down when they fall.
    The findings are published in the journal PLOS Biology.

  4. Lytle Adams says:

    While much is still unknown about how alterations in climate might affect specific bat populations, a study by researchers at Germany’s Max Planck Institute for Ornithology, published in 2013 in the UK’s Royal Society journal Interface, suggested that the delicate system bats use for foraging for insects could be disrupted, with different species reacting to rises and falls in temperature.
    “The prey detection ability, and thus possibly the foraging efficiency, of echolocating bats is susceptible to rising temperatures through climate change,” the study said.
    “Global warming can thus directly affect the prey detection ability of individual bats and, indirectly, their interspecific interactions with competitors and prey.”
    Other studies indicate that extreme weather events could threaten whole bat populations.
    Warming temperatures could result in bats waking early from hibernation. And bats are considered more vulnerable to dehydration than most other mammals: in drought conditions, they might not be able to fly long distances to find water sources.” http://climatenewsnetwork.net/warming-adds-to-pressure-on-bats/ Includes links to source materials

  5. Acrobat says:

    Over the course of a week in 2009, researchers tracked the flight of seven different Brazilian free-tailed bats residing in the Frio Bat Cave in Texas. What they found was astounding: the bats were capable of reaching ground-speeds of over 100 miles per hour, making them the fastest flying species in the world. http://motherboard.vice.com/read/fastest-flying-animal (peregrine falcons can reach speeds of around 190 mph, but that’s when they’re diving, not horizontal).

  6. Walburga Oesterreich says:

    Researchers discover everyday bat vocalizations contain information about emitter, addressee, context, and behavior http://www.nature.com/articles/srep39419 “…nearly all of the communication calls of the Egyptian fruit bat in the roost are emitted during aggressive pairwise interactions, involving squabbling over food or perching locations and protesting against mating attempts (links to supplementary Videos S1,S2,S3,S4).”
    “Bat chat: machine learning algorithms provide translations for bat squeaks : In a step towards understanding the origins of human speech, researchers have worked out a way to understand the meaning of bat calls” https://www.theguardian.com/science/2016/dec/22/bat-chat-machine-learning-algorithms-provide-translations-for-bat-squeaks

  7. Carmen Gaia says:

    “The Hipster Ninja Bats That Sneak Up on Their Prey : The animals have evolved stealthy echolocation that moths can’t hear.” https://www.theatlantic.com/science/archive/2017/11/the-arms-race-between-ninja-bats-and-sharp-eared-moths/545549/
    “Bat Cave Solves Mystery of Deadly SARS Virus : The latest findings also suggest a new outbreak could occur” https://www.scientificamerican.com/article/bat-cave-solves-mystery-of-deadly-sars-virus/

  8. Harbinger says:

    “Bats as barometer of change : Surprising results from a unique bat study in the US reveal shifting behavioral patterns due to environmental change that could have far-reaching implications for agriculture globally” (Rothamsted Research 2/12/18) https://www.eurekalert.org/pub_releases/2018-02/rr-bab021218.php See also “Ongoing changes in migration phenology and winter residency at Bracken Bat Cave” http://onlinelibrary.wiley.com/doi/10.1111/gcb.14051/abstract;jsessionid=6156C1652F9B893092DB6A48D6971BAD.f04t01 Re: Bracken Cave http://www.batcon.org/our-work/regions/usa-canada/protect-mega-populations/bracken-cave

  9. Nightmare fuel says:

    India: “Nipah virus outbreak in Kerala: Why aren’t the bats getting sick? https://gulfnews.com/news/asia/india/nipah-virus-outbreak-in-kerala-why-aren-t-the-bats-getting-sick-1.2226274
    The virus has claimed the lives of at least 12 people over the past many days in the western coastal state of Kerala, sparking global concerns as the World Health Organization (WHO) has listed the Nipah infection as a public health risk with epidemic potential. https://qz.com/1288907/keralas-nipah-virus-outbreak-has-scientists-racing-to-create-a-vaccine/ The viral infection has proved to be fatal in 70% of cases and is spread through contact with the saliva, urine, or excreta of fruit bats, which are its natural hosts.
    World Health Organization: “Nipah Virus Infection” http://www.searo.who.int/entity/emerging_diseases/links/CDS_Nipah_Virus.pdf?ua=1

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