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Sylvia A

Vampire bats recognise their prey's breathing ( Vampire bats the only mammals to feed ...) - 0 views

www.bio-medicine.org/...e-their-preys-breathing-3292-1

bat vampire

shared by Sylvia A on 10 Dec 08 - Cached
  • Vampire bats, the only mammals to feed exclusively on blood, including human blood, recognize their prey by the sound of its breathing.
  • Vampire bats feed on the same prey over several nights
  • bats use breathing sounds to identify their prey in the same way as humans use voice to recognise each other.
Ann Thomas

Alley Cat Rescue � The National Cat Protection Association - 0 views

www.saveacat.org/communitybenefits.html

shared by Ann Thomas on 10 Dec 08 - Cached
  • Feral cats can minimize rodent problems. While cats cannot hunt rats and mice into extinction, they can keep their populations in check and discourage new rodents from moving into the area. Often feral cats fill in a gap in the current ecosystem. For example bob cats or lynx used to live up and down the East Coast but were hunted ruthlessly and driven away by development. Feral cats are similar in size and behavior to these native feline predators and help to control the same species of small prey animals. Many people enjoy watching feral cats and observing animals has been shown to lower blood pressure in medical studies. People who help to care for feral cats by feeding them and taking them to the vet enjoy many benefits. Often cat caretakers are elderly and live alone, a population at risk for depression, loneliness, and isolation. Cats relieve these conditions and often bring a sense of happiness and purpose to people who help them. Just as companion animals have been shown extend life expectancies, lower blood pressure, and relieve stress, caring for feral cats improves the health of their caretakers. Individuals who cannot take on the full time commitment of adopting a companion animal can participate in programs to help feral cats. This provides a viable alternative to irresponsibly purchasing an animal one is not prepared to care for. An established, stable, vaccinated, and sterilized colony of feral cats will deter other stray and feral cats from moving into the area. This actually decreases the risk that residents will encounter an unvaccinated cat, and will virtually eliminate problem behaviors like fighting and spraying.
  • Ann Thomas on 10 Dec 08
     
    1. Feral cats can minimize rodent problems. While cats cannot hunt rats and mice into extinction, they can keep their populations in check and discourage new rodents from moving into the area. Often feral cats fill in a gap in the current ecosystem. For example bob cats or lynx used to live up and down the East Coast but were hunted ruthlessly and driven away by development. Feral cats are similar in size and behavior to these native feline predators and help to control the same species of small prey animals. 2. Many people enjoy watching feral cats and observing animals has been shown to lower blood pressure in medical studies. 3. People who help to care for feral cats by feeding them and taking them to the vet enjoy many benefits. Often cat caretakers are elderly and live alone, a population at risk for depression, loneliness, and isolation. Cats relieve these conditions and often bring a sense of happiness and purpose to people who help them. Just as companion animals have been shown extend life expectancies, lower blood pressure, and relieve stress, caring for feral cats improves the health of their caretakers. 4. Individuals who cannot take on the full time commitment of adopting a companion animal can participate in programs to help feral cats. This provides a viable alternative to irresponsibly purchasing an animal one is not prepared to care for. 5. An established, stable, vaccinated, and sterilized colony of feral cats will deter other stray and feral cats from moving into the area. This actually decreases the risk that residents will encounter an unvaccinated cat, and will virtually eliminate problem behaviors like fighting and spraying.
Dani Wiener

Wolf Prey - 0 views

www.angelfire.com/...Prey.html

wolves prey

shared by Dani Wiener on 08 Dec 08 - Cached
  • Dani Wiener on 08 Dec 08
     
    PLP Research
Dani Wiener

Arctic Hare - information (Canadian animals) - 0 views

www.saskschools.ca/...Ahare.html

arctic hare prey

shared by Dani Wiener on 10 Dec 08 - Cached
  • The main food for the Arctic hare is woody plants. It will eat mosses, lichens, buds, berries, leaves, seaweed, bark, willow twigs and roots, and even the meat from hunters' traps
  • Dani Wiener on 10 Dec 08
     
    actic hare prey
Tucker Haydon

Perentie info. - 0 views

en.wikipedia.org/Perentie

shared by Tucker Haydon on 03 Dec 08 - Cached
  • largest monitor lizard or goanna native to Australia
  • fourth largest lizard on earth
  • Found west of the Great Dividing Range in the arid areas of Australia
  • ...5 more annotations...
  • 2.5 metres (8 ft)
  • venomous
  • rapid swelling within minutes, localised disruption of blood clotting, shooting pain up to the elbow, with some symptoms lasting for several hours
  • They can stand on their back legs and tail to gain a better view of the surrounding terrain. This behaviour, known as "tripoding", is quite common to all monitors large and small. Perenties are fast sprinters, running using either all four legs or just their hind legs.
  • Perenties generally forage for their food, but are also known to wait for small animals to come to them. Prey include: Insects Reptiles, including their own kind Birds and birds' eggs Small mammals Carrion Large adults can attack larger prey, like small kangaroos.
Dani Wiener

Grolier Multimedia Encyclopedia - 0 views

gme.grolier.com/...article

wolf prey information

shared by Dani Wiener on 08 Dec 08 - Cached
  • prey of wolves are large hoofed mammals, including deer, moose, elk, caribou, bison, musk-oxen, and mountain sheep. Beaver is eaten when available. In summer a variety of smaller foods, such as small rodents and berries, supplement the diet. Animals killed are usually young, old, or otherwise weaker members of their populations because they are easiest to capture.
  • Dani Wiener on 08 Dec 08
     
    HISD Resource for PLP Research
Dani Wiener

Title: Arctic wolves and their prey - Mech - 0 views

www.arctic.noaa.gov/essay_mech.html

arctic wolves prey

shared by Dani Wiener on 03 Dec 08 - Cached
  • musk-oxen, Peary caribou, and arctic hares
  • Dani Wiener on 03 Dec 08
     
    PLP Website
Dani Wiener

Musk Ox - 0 views

www.asij.ac.jp/...title.htm

musk-ox musk-oxen prey

shared by Dani Wiener on 03 Dec 08 - Cached
  • grass, willows, arctic flowers, mosses, lichens, aspens, birsh shoots, berry bushes, sedges, leaves, twigs and even barks if they can find some
  • arctic wolf,
Stephania D

Oil Remains - 0 views

www.afsc.noaa.gov/...feature_jas01.htm

Exxon Valdez Pollution water

shared by Stephania D on 03 Dec 08 - Cached
  • largest and most productive estuaries in North America.  
  • However, in 1993 the EVOS Trustee Council funded an additional survey that estimated 7 km of shoreline were still contaminated with subsurface oil.
  • Because a significant survey of Prince William Sound had not been conducted since 1993 and the cumulative extent of the remaining oil was unknown, concerns were generated by the public and scientific communities about the oil’s possible continuing effects on humans and fauna potentially exposed to the oil directly or indirectly.
  • ...14 more annotations...
  • Without an accurate assessment of the extent of the remaining oil, subsistence food-gatherers, consumers of commercial fish products from the area, and tourists have used mostly anecdotal evidence as the basis for economic decisions regarding resource utilization in the affected area.
  • Consequently, the Auke Bay Laboratory (ABL) with funding from the EVOS Trustee Council, took on the task of assessing the remaining oil along the shorelines of Prince William Sound during the summer of 2001
  • The primary objective of the project was to measure the amount of oil remaining in the intertidal zone of Prince William Sound.  Secondary objectives include determining the rate of decline of oil on these beaches, estimating the persistence of the remaining oil, and correlating the remaining oil with geomorphological features.
  • heavily and moderately oiled
  • The 2001 survey adopted a stratified random/adaptive sampling (SRAS) design. Two random pits were excavated to a depth of 0.5 m (1.6 feet) in every stratified block (0.5-m verticle drop in tide height) within a grid system established at each site. If subsurface oil was discovered in any of the randomly stratified origin pits, then additional adaptive pits were excavated above, below, to the right, and to the left of the origin pit until the extent of the oil patch was determined.
  • Buried or subsurface oil is of greater concern than surface oil.
  • Subsurface oil can remain dormant for many years before being dispersed and is more liquid, still toxic, and may become biologically available.
  • A disturbance event such as burrowing animals or a severe storm reworks the beach and can reintroduce unweathered oil into the water.
  • The toxic components of this type of surface oil are not as readily available to biota, although some softer forms do cause sheens in tide pools.
  • 1) Surface oil was determined to be not a good indicator of subsurface oil. 2) Twenty subsurface pits were classified as heavily oiled.  Oil saturated all of the interstitial spaces and was extremely repugnant. These “worst case” pits exhibited an oil mixture that resembled oil encountered in 1989 a few weeks after the spill - highly odiferous, lightly weathered, and very fluid. 3) Subsurface oil was also found at a lower tide height than expected (between 0 and 6 feet), in contrast to the surface oil, which was found mostly at the highest levels of the beach (Table 3).  This is significant, because the pits with the most oil were found low in the intertidal zone, closest to the zone of biological production, and indicate that our estimates are conservative at best.
  • The possibility of continuing low level chronic effects of the Exxon Valdez oil spill seem very real now, although measurable population effects would be very difficult to detect in wild populations.
  •  Sea otters and harlequin ducks fall into this category
  • such as sea otters, harlequin ducks, and their intertidal prey.
  • The last beach assessment was completed in September 2001. Supporting chemical analyses will be completed in fall 2002, and a final report with statistical analyses and conclusions will be completed by April 2002.
  • Stephania D on 03 Dec 08
     
    Exxon Valdez
Tucker Haydon

Kookaburra info. - 0 views

en.wikipedia.org/Kookaburra

shared by Tucker Haydon on 05 Dec 08 - Cached
  • Kookaburras (genus Dacelo) (or Cookaburras)
  • terrestrial kingfishers native to Australia and New Guinea
  • Kookaburras are best known for their unmistakable call, which is uncannily like loud, echoing human laughter — good-natured, if rather hysterical, merriment in the case of the well-known Laughing Kookaburra (Dacelo novaeguineae); and maniacal cackling in the case of the slightly smaller Blue-winged Kookaburra (D. leachii)
  • ...5 more annotations...
  • habitats ranging from humid forest to arid savanna
  • Kookaburras are carnivorous. They will eat lizards, snakes, insects, mice and raw meat
  • territorial, and often live with the partly grown chicks of the previous season. They often sing as a chorus to mark their territory.
  • eat babies of other birds and snakes, and insects and small reptiles. In zoos, they are usually fed food for birds of prey, and dead baby chicks
  • three mascots chosen for the 2000 Summer Olympics in Sydney
Tucker Haydon

Inland Taipan info. 3 - 0 views

bioweb.uwlax.edu/...Habitat%20and%20Geography.htm

shared by Tucker Haydon on 05 Dec 08 - Cached
  • The Inland Taipan hunts during the early morning so that it avoids the heat of the day in the numerous small cracks and dry riverbeds
  • The Inland Taipan is a top apex predator and uses its habitat well.  It traps various smaller organisms in the small cracks and crevasses to catch its prey.
cory delacruz

Cretaceous-Tertiary extinction event - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...80%93Tertiary_extinction_event

shared by cory delacruz on 09 Dec 08 - Cached
  • More has been published about the extinction of dinosaurs at the K-T boundary than any other group of organisms. Excluding a few controversial claims, it is agreed that all non-avian dinosaurs went extinct at the K-T boundary. The dinosaur fossil record has been interpreted to show both a decline in diversity and no decline in diversity during the last few million years of the Cretaceous, and it may be that the quality of the dinosaur fossil record is simply not good enough to permit researchers to distinguish between the choices.[54] Since there is no evidence that late Maastrichtian nonavian dinosaurs could burrow, swim or dive, they were unable to shelter themselves from the worst parts of any environmental stress that occurred at the K-T boundary. It is possible that small dinosaurs (other than birds) did survive, but they would have been deprived of food as both herbivorous dinosaurs would have found plant material scarce, and carnivores would have quickly found prey to be in short supply.[35] The growing consensus about the endothermy of dinosaurs (see dinosaur physiology) helps to understand their full extinction in contrast with their close relatives, the crocodilians. Cold-blooded crocodiles have very limited needs of food (they can survive several months without eating) while warm-blooded animals of similar size need much more food in order to sustain their faster metabolism. Thus, under the circumstancies of food chain disruption above mentioned, non-avian dinosaurs died [55] while some crocodiles survived. In this context, the survival of other endothermic animals, such as some birds and mammals, could be due, among other
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