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a departure from health:
study of the cause of a particular disease
study of how disease spreads
disease causing agent
What are the types of pathogens?
- helminithic (worms)
the organism that harbors the pathogen:
how disease moves from one host to another:
affecting animals of a particular geographic area:
What are the types of enzootic diseases?
- affects small numbers
- not native to N. America
- can't be transmitted by birds
- warm summer months
- kills rapidly
- depression, lethargy, staggering, try to get water
What can be a host for anthrax?
How can anthrax be transmitted?
- cutaneus (skin)
- inhalation (lungs)
- gastro-intestinal (stomach)
How can you tell an animal died from anthrax?
- seemingly healthy animal
- possible oozing lesion
affecting a large number of animals at the same time within a particular geographic region:
Can anthrax become epizootic?
yes when conditions are favorable
transmissible from animal to human:
How can zoonotic diseases be transmitted?
- meat of infected animal
- direct contact
How can diseases be prevented or controlled?
- proper carcass disposal
gastrointestinal toxin affects:
stomach & intestines
caused by fungus
liver disease found in moldy grain
- toxic to horses/donkeys
- lung edema in swine
- found in maize, wheat, and other cereals
What are some mycotoxins?
What is prussic acid?
when plants are stressed and ingested by ruminants, HCN is released into the blood stream and keeps the blood from transporting oxygen to the animal (suffocating it)
What plants can cause prussic acid poisoning?
- sorghums (johnsongrass)
- species of plum
What deficiencies can onset disease?
- physical interference
- absorption interference
What are some stressors he environment?
- poor habitat condition
- natural disasters
a disease passed from parent to offspring genetically:
an abnormality present at birth:
What disease is associated with armadillos?
What is canine distemper?
virus brought on by raccoons, gray foxes, and coyotes
What is EHD (epizootic hemorrhagic disease)?
- a virus
- can be vaccinated against
- carried by cervids and bovids
What is chronic wasting disease?
- similar to mad cow disease
- affects cervids (mule deer, white tail deer, elk)
a modified protein that damages the central nervous system:
What causes avian pox?
What is avian botulism?
bacteria caused disease that results in paralysis
an identifiable, stationary, localized source from which a pathogen is made available to a host:
transmitted by direct or indirect contact:
a carrier; the animal that transfers an infective agent from one host to another without becoming ill itself:
Why should wildlife managers be concerned with disease?
- population effects
- management issues
bacteria that effects reproductive organs and leg joints of bison, elk, feral pigs, reindeer, caribou and marine mammals
- bacteria that doesnt show symptoms but affects many mammals and birds
- it is zoonotic
What does zoonotic mean?
it can affect humans
all losses from physical causes other than disease, parasite, hunting, predation or lack of welfare factors: