1 / 43

WILDLIFE DISEASES: What you don’t know COULD kill you!

WILDLIFE DISEASES: What you don’t know COULD kill you!. Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife. My Neat Experiences:. Undergraduate Graduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate

klaus
Télécharger la présentation

WILDLIFE DISEASES: What you don’t know COULD kill you!

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. WILDLIFE DISEASES:What you don’t know COULD kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife

  2. My Neat Experiences: • Undergraduate • Graduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  3. My Neat Experiences: • Undergraduate • Graduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  4. My Neat Experiences: • Undergraduate • Graduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  5. My Neat Experiences: • Undergraduate • Graduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  6. My Neat Experiences: • Undergraduate • Graduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  7. My Neat Experiences: • Undergraduate • Graduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  8. STRESSORS OF TEXAS BOBWHITES: ARE THEY TO BLAME FOR THEIR DECLINE?

  9. Rio Grande Plains r=-0.142 P=0.561

  10. BOOM-BUST HYPOTHESES • El Nino / Habitat Degradation • Parasitic Infection / R.E.V. • Fire Ants • Nutritional Deficiencies • Endocrine Disruptors Corticosterone

  11. Radio-Immuno Assay (RIA)

  12. My Neat Experiences: • Undergraduate • Wisconsin DNR – Lake Michigan • Lyme Disease • USFWS National Wildlife Health Lab • Graduate • Postdoctorate

  13. Human Environment Disease

  14. ZOONOTIC DISEASES: • Wildlife diseases transmissible to humans: RABIES GIARDIASIS PLAQUE RMSP LYME DISEASE TULAREMIA HISTOPLASMOSIS HANTAVIRUS RACCOON RNDWORM SARCOCYSTIC

  15. RABIES • “Hydrophobia” or “Rage” • Virus (F. Rhabdoviridae) • Only warm-blooded animals • Symptoms in 10 days to several months • Normally from bite or saliva • Can be aerosal - bat caves in TX • May be abnormal in appearance or behavior • Prophylaxis (pre-exposure vaccines and Control (killed vaccines)

  16. GIARDIASIS • Giardiasis, “Beaver Fever” • Protozoan (Giardia lamblia) • Intestinal disorder • Ingest cyst in water, feces or contact with an infected animal (beaver and muskrat) • Chronic diarrhea, weight loss and malaise • Effective medications; preventative – avoid drinking untreated water

  17. PLAGUE • “Black Death”, “Pest” • Bacterium (Yersinia pestis); Fleas transmit • Isolated cases in West and Texas • Wild rodent, rabbits, carnivores • Fever, swollen lymph nodes, progressing to high fever, confusion and fatique • Untreated – high fatality rate • Treatment – tetracycline or other drugs

  18. Loss 1/3 world population (1800s)

  19. ROCKY MOUNTAIN SPOTTED FEVER • Bacterium (Rickettsia rickettsii) • Ticks transmit (several spp.) Bite or crushed ticks or tick feces • Flu-like symptoms; fever, chills, aches • Rubber gloves, wash hands, remove ticks • Usually 4 hours for tick transmittal

  20. LYME DISEASE • Bacterium (Borrelia burgdorferi) • Ticks and fleas • Old Lyme, Connecticut • 3 stages: (1) Flu-like, (2) Small red lesion around bite, (3) Recurrent arthritis • Treatment: Antibiotics

  21. TULAREMIA • “Rabbit fever or disease”, “Francis’ disease” • Bacterium (Francisella tularensis) • Many hosts; humans usually infected by rabbits during skinning process, ingestion, or from tick/flea/deerfly bites • Symptoms: fever, infected sores, “flu-like” • Rabbits with white spots on liver/spleen • Rarely fatal; treatable

  22. HISTOPLASMOSIS • Fungus (Histoplasma capsulatum) • Respiratory ailment – inhale spores • Blackbird and pigeon roosts, bat caves, and chicken houses • Symptoms highly variable; severe cases resemble tuberculosis

  23. Abscessed mesenteric lymph node Focal necrosis in liver

  24. HANTAVIRUS • Group of viruses • Infected rodents; urine, feces, and/or saliva – aerosal and direct • Kidney, blood, respiratory ailments • Can be fatal

  25. RACCOON ROUNDWORM: • Intestinal roundworm, Baylisascaris procyonis • Infectious: cottontail rabbits, mammals, birds • Signs: neurological disease; circling, abnormal posture, blindness • Lesions: CNS, larvae as white nodules in abdominal or thoracic viscera

  26. SARCOCYSTOSIS • “Rice breast”, “Long grain rice disease” • Protozoan (Sarcocystis spp.) • Most vertebrates; intermediate host

  27. CUTANEOUS WARBLES • Larval flies (Cuterebra spp.) • Signs: increased scratching/grooming • Lesions: localized swellings (0.5-1”) • Squirrels and rodents; common in SE • Occasionally debilitating • Restricted to skin

  28. DISEASE DIAGNOSIS • Hunters typically report abnormalities • Some gross lesions are specific and indicative of a specific disease • USFWS Wildlife Health Lab • State Agency • University – Medical, Veterinary

  29. Avian Pox

  30. 2 Good Field Books • Field Guide to Wildlife Diseases, General Field Procedures and Diseases of Migratory Birds (USDI – Madison, WI) • Field Manual of Wildlife Diseases in the Southeastern United States (Davidson, W.R. and V.F. Nettles – SCWDS)

More Related