Ever since the devil facial tumor disease (DFTD) emerged in the mid-1990’s‚ the Tasmanian devils’ population has been on a rapid decline. As these devils are a keystone species of their ecosystem‚ their decline has allowed non-native predators such as cats and black rats to flourish and decrease the number of native prey. This effect is an example of the top-down keystone predator hypothesis. Due to the downfall of the devils‚ Australia’s once most intact faunal communities has diverted into an invasive
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The fish’s death and rotting bodies caused the water to turn a deep sickly yellow color. Yet‚ the fishes decomposing bodies cause a boom of bacterial and zooplankton growth in the aquatic chamber. The resulting zooplankton and other microorganisms population growth helped the water quality because the zooplankton and microorganisms began to feed on the bacteria that had caused the deep yellow color. As the microorganisms fed on the bacteria the water quality and color quickly became more
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Anoura fistulata‚ otherwise known as the tube-lipped nectar bat‚ is a nectarivorous species endemic to South America (Mantilla-Meluk et al. 2009). A. fistulata specializes in feeding on the nectar and pollen from larger flowering plants‚ but also frequently hunts insects to round out it’s diet (Muchhala et al. 2005). However‚ unlike other species of the same genus A. fistulata has co-evolved as a pollinator of the bellflower Centropogon nigricans (Muchhala et al. 2009). C. nigricans has developed
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Carpenter ants like to burrow into soft and rotting wood. They like to make nests inside of oak trees that are already diseased or compromised. The presence of carpenter ants can prevent a diseased or compromised tree from recovering and continuing to thrive. Here is what you need to do if you have carpenter ants living in any of the oak trees on your property. Locate The Nest The first thing you need to do is locate the nest. Carpenter ants generally live together in colonies and build nests where
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There is some information on the Komodo Dragon. Some facts about the Komodo Dragon are they can live up to 40 years which is crazy long. Surprisingly a baby komodo dragon is called a pup just like a doggy. Also they can weigh up to 300lbs. their population size isn’t very large due to their danger there is only 5‚000 left which is bad. A Komodo Dragon has 50 different types of toxic bacteria that is very deadly. The colors of the dragon are grey‚ brown‚ and cream. There are some facts about the Komodo
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The Invasive Cane Toad An invasive species is defined as a species that is non-native or alien to a community or ecosystem that was introduced by humans and has turned invasive‚ spreading widely and coming to dominate in the community causing economic or environmental harm. The cane toad is an example of an invasive species. It is a large‚ strong‚ and healthy amphibian that is native to Central and South America. They are predators of insects and other small prey. The cane toad was introduced to
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Pesticides are substances used for destroying organisms that are harmful to crops. There are many different forms of pesticides‚ but whichever form it is they harm‚ and kill Bumble bees. Bumble Bees pollinate about 15 percent of our food‚ and are valued at 3 billion dollars (Adam Federman). Bees are extremely important pollinators that we need‚ but yet we are killing them off indirectly with the pesticides we use on crops. A pesticide called neonicotinoids is one example of how pesticides are
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Birmingham‚ AL‚ is home to plenty of sunshine and blue skies‚ but it’s also home to a variety of bothersome pests. From bees and mice to rats and spiders‚ each pest poses a unique set of problems and potential dangers. To help you better understand the pests that plague your area‚ here is a quick look at some common nuisances and what can be done about them. Bees and Wasps While bees are a crucial part of the ecological system‚ they can be dangerous to humans when they build their nests too close
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Ant Colony Optimization EDWIN WONG PHILLIP SUMMERS ROSALYN KU PATRICK XIE PIC 10C SPRING 2011 Swarm Intelligence Swarms Swarm of bees Ant colony as swarm of ants Flock of birds as swarm of birds Traffic as swarm of cars Immune system as swarm of cells and molecules ... Swarm Intelligence/Agent Based Modeling Model complex behavior using simple agents Swarm Intelligence Digital Crumbs a la Hansel and Gretel Idea: stigmergy is a mechanism of communication by modifying the environment
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them causing them to asphyxiate. These ants are also known to kill a majority of the reptiles and birds in the ecosystems they invade. Crazy ants have completely taken over the fire ant population in some areas which is negative towards an ecosystem because fire ants attribute to keeping other insect populations down. They have caused many pet owners to be more cautious when letting their pets
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