Predators Current Events

Predators Current Events, Predators News Articles.
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Gone but not forgotten
Many species find themselves isolated from predators with which they evolved. This can be natural, as on islands, or unnatural, as in zoos. In response to this isolation, many species lose the ability to respond appropriately to their predators. However, some species, despite many years of isolation, retain anti-predator behavior. (2006-02-16)

Selective predation and productivity jointly drive complex behavior in host-parasite systems
Spencer R. Hall, Meghan A. Duffy, and Carla E. Cáceres studied a simple model which shows how predators that strongly prefer parasitized hosts can introduce (2005-02-02)

Top predators also have sway over climate
University of British Columbia researchers have found that when the animals at the top of the food chain are removed, freshwater ecosystems emit a lot more carbon dioxide into the atmosphere. (2013-02-17)

A decade after the predators have gone, Galapagos Island finches are still being spooked
On some of the Galapagos Islands where human-introduced predators of Darwin's finches were eradicated over a decade ago, the finches are still acting as though they are in danger, according to research published today in the Journal of Animal Ecology. (2019-11-20)

What are 3-D spider webs for?
In an article published in the January 2003 issue of Ecology Letters, researchers led by a team at Cornell University report that three-dimensional spider webs are associated with a dramatic decrease in predation by mud-dauber wasps, major worldwide predators of spiders. (2003-01-02)

Lizard tail adaptations may reflect predators' color vision capabilities
Juveniles of numerous lizard species have a vividly blue-colored tail that likely serves to deflect predator attacks toward the detachable tail rather than the lizard's body. Now researchers have found that certain differences in blue and UV light reflectance in lizard tails are likely adaptations to predators with different color vision capabilities. (2016-06-22)

Predators prefer to hunt small-brained prey
Predators such as leopards and chimpanzees consistently target smaller-brained prey less capable of escape, research at the University of Liverpool has shown. (2006-08-02)

Herbivorous vertebrates may face most daunting extinction risk
Herbivores -- not predators -- may face a higher risk of extinction among mammals, birds, and reptiles, according to a new study of more than 44,000 living and extinct species. The findings suggest herbivores have consistently suffered the highest threat of extinction in the present day, the recent past, and the late Pleistocene - more so than species from any other position. (2020-08-05)

Landscapes of fear, and the large carnivores they feature, important in African ecosystems
A new study focused on Mozambique's Gorongosa National Park, where entire populations of large-mammal predators were nearly extinguished during the Mozambican Civil War, illustrates how the loss of an ecosystem's top carnivores can have far-reaching consequences for prey and plant populations, turning 'landscapes of fear' into 'landscapes of fearlessness' in which emboldened herbivores graze and suppress plants. (2019-03-07)

It's a bird-eat-bird world
Baby birds and eggs are on the menu for at least 94 species of animals in Australia's forests and woodlands, according to new research from the University of Queensland. PhD candidate Graham Fulton reviewed 177 existing bird studies across the country, identifying Australia's most prolific nest predators and the factors affecting nest attacks. (2019-01-24)

Gone fishing: Loss of ocean predators has impact on climate change strategies
As Australia engages in debate over shark culling, new research says unsustainable harvesting of larger fish will affect how we tackle climate change. (2015-09-28)

Mix of marine zones matters most for prey fish
In a first-of-its-kind study, James Cook University scientists have discovered a mosaic mix of marine zones could benefit populations of prey fishes. (2016-08-16)

Skunk's strategy not just black and white
Predators with experience of skunks avoid them both because of their black-and-white coloration and their distinctive body shape, a new study has found. (2009-11-10)

Marine predators: Bigger in size with an appetite to match
The size of marine invertebrate predators has increased over the past 500 million years, while the size of their prey has not, a new study reveals. (2017-06-15)

Predators key to helping prey evolve with climate change
The key to helping animals evolve quickly in response to climate change could actually be their predators, according to a new UBC study. (2015-12-15)

Humans as predators: An unsustainable appetite for adults and carnivores
Humans are just one of many predators in this world, but a new study highlights how their intense tendency to target and kill adult prey, as well as other carnivores, sets them distinctly apart from other predators. (2015-08-20)

Spiders target sexy signals from 'vibrating' insects
Insects using vibration to attract a mate are at risk of being eaten alive by killer spiders, Cardiff University scientists have discovered. (2011-03-29)

Bugs resort to several colours to protect themselves from predators
New research has revealed for the first time that shield bugs use a variety of colours throughout their lives to avoid predators. For years it has been thought that animals living in the same environment -- like nymphs and adults of the same species -- should use similar warning colours, not different ones. (2020-06-25)

URI scientists: Marine plants can flee to avoid predators
Scientists at the University of Rhode Island's Graduate School of Oceanography have made the first observation of a predator avoidance behavior by a species of phytoplankton, a microscopic marine plant. The scientists made the unexpected observation while studying the interactions between phytoplankton and zooplankton. (2012-09-28)

In the egg, American bullfrogs learn how to avoid becoming lunch
When exposed to potential predators as an embryo, the invasive American bullfrog becomes harder to kill when it becomes a tadpole, according to a new study. (2017-07-05)

Top predators play an important role in human-dominated ecosystems
Also in human-dominated landscapes large carnivores such as brown bears or wolves -- so-called top predators -- play a crucial role in the regulation of wildlife populations. This is the result of a joint study by scientists of the Leuphana University Lueneburg, the Humboldt University Berlin and the Charles Sturt University and the Deakin University (both Australia), which was recently published in the journal Proceedings of the Royal Society B. (2016-04-11)

Frog uses different strategies to escape ground, air predators
Frogs may flee from a ground predator and move towards an aerial predator, undercutting the flight path. (2015-04-15)

Guard dogs reduce killing of threatened species
Research from the University of Kent has revealed that guarding dogs can significantly reduce conflict between livestock and large carnivores, such as cheetahs or leopards, helping to reduce unwarranted killing of endangered species in South Africa. (2013-11-26)

Researchers discover migration patterns of marine predators
Researchers at Dalhousie University in Halifax and Stanford University in California concluded a two year study called (2011-06-23)

Scientists uncover an unhealthy herds hypothesis
Biologists worldwide subscribe to the healthy herds hypothesis, but could it be that predators can also make prey populations more susceptible to other predators or even parasites? Biologists at the Georgia Institute of Technology have discovered at least one animal whose defenses against a predator make it a good target for one opportunistic parasite. The research appears online in the journal Functional Ecology. (2011-06-23)

Amphibians and dinosaurs were the new large predators after the mass extinction
Immediately after the biggest extinction event of all time there were once again functioning and complete food webs in the oceans of the Early Triassic. Contrary to previous assumptions there were large predators, too. Large predatory fish and amphibians, and later dinosaurs too, were the last link in the food chain. This is demonstrated in new studies by palaeontologists at the universities of Zurich and Utah, USA. (2014-03-20)

Alien predators are more dangerous than native predators
Introduced predators such as foxes and cats are twice as deadly as native predators to Australia's unique native animals, says new research. The finding, published this week in Proceedings of the Royal Society B, is the first confirmation of what has been a long-held hypothesis among scientists. It also highlights the heavy continuing impact of these predators long after their introduction and that Australia's fauna has been among the hardest hit in the world. (2007-03-13)

Predators hunt for a balanced diet
Predators select their prey in order to eat a nutritionally balanced diet and give themselves the best chance of producing healthy offspring. A new study shows for the first time that predatory animals choose their food on the basis of its nutritional value, rather than just overall calorie content. (2012-01-10)

Siberian jays use complex communication to mob predators
When mobbing predators, Siberian jays use over a dozen different calls to communicate the level of danger and predator category to other members of their own group. A Swedish study from Uppsala University, published in the Proceedings of the Royal Society Biological Sciences, shows birds have evolved call systems that are as sophisticated as those of primates and meerkats. (2009-06-08)

Zoologists challenge longstanding theory that 'eyespots' mimic the eyes of predators' enemies
Zoologists challenge longstanding theory that (2008-02-21)

New model predicts impact of invasive lionfish predators on coral reefs
A new model is providing insight into the impact of invasive lionfish on coral reefs in the Atlantic Ocean and Caribbean Sea. The venomous predatory fish has invaded more than 7.3 million square kilometers in the Atlantic and Caribbean, wreaking havoc among native fish populations. (2019-06-06)

Fishing kills Fijian coral reefs
Outbreaks of coral-eating starfish have occurred in Fiji resulting from overexploitation of the predatory fishes that normally limit its numbers. The impacts of the starfish are dramatic, with previously pristine coral reefs being turned into dull algal mats. In the May issue of Ecology Letters Dulvy, Freckleton and Polunin found that light levels of exploitation by subsistence islanders fishing just for food for themselves and their families could cause such profound changes. (2004-05-04)

Study examines conflict between farmers and livestock predators
A new Journal of Wildlife Management study conducted in South Africa has found that black-backed jackals, a similar species to coyotes and dingoes, prefer to eat livestock rather than similar-sized wild prey, which has important consequences for livestock husbandry and the management of predators. (2017-12-20)

Parasites prevent ants from protecting coffee plants
Azteca ants are voracious predators that live on coffee plants and aggressively defend their territories. That's generally good for the coffee plants, which are protected in the process against all sorts of insect pests. (2003-08-05)

Reviled animals could be our powerful allies
Animal carnivores living in and around human habitation are declining at an unprecedented rate -- but they may provide crucial benefits to human societies. An international review led by University of Queensland researchers has revealed that predators and scavengers ranging from bats to leopards and vultures are valuable to human health and well-being. (2018-01-18)

Computer games for fish uncover why some prey lead and others follow
For the first time, researchers have shed new light on the evolution of different social roles within animal groups by exploring how fish predators target and attack groups of virtual prey. The study, led by the universities of Bristol and Oxford and published today in the journal PNAS, found leaders in groups of animals are more vulnerable to attack from predators. (2019-04-15)

How do bumblebees get predators to buzz off?
Toxic or venomous animals, like bumblebees, are often brightly colored to tell would-be predators to keep away. However scientists at Royal Holloway, University of London and Queen Mary, University of London have found a bumblebee's defense could extend further than its distinctive color pattern and may indeed be linked to their characteristic shape, flight pattern or buzzing sound. The study is published in the Journal of Zoology today, May 26. (2010-05-26)

Lizards change their diet to avoid predators
A scientist from the University of Salamanca and another from Yale University have shown that the presence of predators affects the behavior of Acanthodactylus beershebensis, a lizard species from the Negev Desert in the Near East. According to the study, these reptiles move less and catch less mobile and different prey if they are under pressure from predators. (2009-12-02)

Poison dart frog mimics gain when birds learn to stay away
Studying neotropical poison dart frogs, biologists at the University of Texas at Austin uncovered a new way that the frog species can evolve to look similar, and it hinges on the way predators learn to avoid the toxic, brightly colored amphibians. (2006-03-08)

King penguins keep an ear out for predators
Sleeping king penguins react differently to the sounds of predators than to non-predators and other sounds, when they are sleeping on the beach. Research carried out at the University of Roehampton, UK, has revealed that even asleep, these penguins can distinguish between dangerous and benign sounds. (2016-07-06)

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