A Recent Deer Study

Discussion in 'Whitetails General' started by cfdjay, May 29, 2009.

  1. cfdjay

    cfdjay New Member

    Sep 5, 2004
    DEER TELEMETRY STUDY COMPLETED
    Release Date: 05/19/2009

    The two-year deer telemetry study spearheaded by the Louisiana Department of Wildlife and Fisheries (LDWF) and the Louisiana State University's (LSU) School of Natural Resources was completed in early April.

    LSU grad student Justin Thayer's thesis entitled "Population Characteristics of a White-tailed Deer Herd in a Bottomland Hardwood Forest of South-central Louisiana" is now available at etd.lsu.edu/docs/available/etd-04142009-092649.

    The primary objectives of the study were to assess range and movements, evaluate age and sex-specific harvest rates and evaluate survival and causes of death among white-tailed deer in a Louisiana bottomland hardwood forest under a quality deer management plan.

    A total of 65 deer were captured in West Baton Rouge and Iberville parishes during 2007 and 2008. The research team radio-marked 37 males and 11 females and earmarked an additional 10 males and seven females.

    The study found that home ranges for adult males during the spring were 380 acres, during the summer were 174 acres and during the fall were 291 acres. Female home ranges were 166 acres during the spring, 133 acres during the summer and 62 acres during the fall. Juvenile (1.5 year-old) males increased space use 169 percent in the spring (572 acres) relative to the summer (213 acres) and maintained 50 percent larger home ranges than adults during the spring.

    The study group observed smaller home ranges than anticipated or seen previously, suggesting that landowners managing smaller tracts of property may be able to practice quality deer management at scales thought to be ineffective at improving herd dynamics.

    Survival estimates for adult males was 100 percent during the spring, 95 percent during the summer and 55 percent during the fall. Mean annual survival for adult males was 53 percent. No mortalities were observed in spring or summer for juvenile males, but ear-tag returns and harvest records indicated juvenile males were being harvested at a rate approaching 20 percent.

    The mean annual mortality rates from harvest were 40 percent and non-harvest sources of mortality were 16 percent. Non-hunting mortality included both natural causes (8 percent) and deer-vehicle-collisions (8 percent).

    According to the thesis, due to low non-hunting mortality, young males (less than 2.5 years) are likely to survive to the next age class if protected from harvest, but ultimately have a small chance of reaching maturity (5.5 plus years) because males are generally harvested as they approach the antler restriction in place. Managers should seek to increase fall survival for males, if management objectives include increasing the frequency of harvesting males over 3.5 years old.

    The study was conducted on approximately 40,000 acres of bottomland hardwood forest located west of Baton Rouge and east of the Atchafalaya Basin. The study area was leased to more than 30 private hunting clubs, and each club belonged to a cooperative that promotes quality deer management on the property. A. Wilbert's Sons L.L.C. is the primary landowner and cooperator and also provided technical, logistical and housing support for the researchers.

    White-tailed deer are an important economic and recreational resource across their entire range. In Louisiana and other southeastern states, land managers are choosing strategies geared toward developing quality deer herds. Because this management regime involves restricting harvest of younger-age-class bucks and increasing the harvest of females to lower herd density, substantial interest exists in understanding the effects of quality deer management on population characteristics.

    For more information, contact Scott Durham at 225-765-2351 or sdurham@wlf.louisiana.gov.
    2009-125
     
  2. marshallgrn

    marshallgrn New Member

    Apr 20, 2008
    in hiding

  3. letemgrow

    letemgrow Well-Known Member

    [rquote=1280062&tid=89567&author=marshallgrn] yep ARs work :cheers:[/rquote]


    I want to see the results on 40,000 acres that are not QDM managed in the process before I will believe that ar's are the factor. :cheers:
     
  4. cfdjay

    cfdjay New Member

    Sep 5, 2004
    AR's and QDM are 2 different things to me.
     
  5. Jeremy

    Jeremy REGULAR MEMBER

    Dec 22, 2006
    survival estimate in spring...100%....yeah right:roll2:
     
  6. letemgrow

    letemgrow Well-Known Member

    [rquote=1280068&tid=89567&author=cfdjay]AR's and QDM are 2 different things to me.[/rquote]

    true dat, but I know of zero QDM guys that shoot mainly young bucks which fits with the point of some states ar's....to let bucks get older.

    So in that study it would be hard to say that ar's are letting the bucks get bigger when the farms they tested on were QDM farms. It could be either or.
     
  7. cfdjay

    cfdjay New Member

    Sep 5, 2004
    [rquote=1280075&tid=89567&author=letemgrow][rquote=1280068&tid=89567&author=cfdjay]AR's and QDM are 2 different things to me.[/rquote]

    true dat, but I know of zero QDM guys that shoot mainly young bucks which fits with the point of some states ar's....to let bucks get older.

    So in that study it would be hard to say that ar's are letting the bucks get bigger when the farms they tested on were QDM farms. It could be either or. [/rquote]

    Agreed. The guys in the study were practicing QDM not AR's, right?
     
  8. letemgrow

    letemgrow Well-Known Member

    It does say that very reach 5.5 and are harvested once they reach the antler restriction that is in place...maybe that is a hunter based rule and not the state??
     
  9. marshallgrn

    marshallgrn New Member

    Apr 20, 2008
    in hiding
    AR haters, o well kill them bb for all i care, i know ARs work seen it for myself :cheers:
     
  10. Jeremy

    Jeremy REGULAR MEMBER

    Dec 22, 2006
    work for what?
     
  11. letemgrow

    letemgrow Well-Known Member

    [rquote=1280087&tid=89567&author=marshallgrn]AR haters, o well kill them bb for all i care, i know ARs work seen it for myself :cheers:[/rquote]


    Guess it just depends on the area...I personally have not seen a jump in older aged bucks, but I was already seeing quite a few 3.5+ year old bucks to start with. Hunter attitude is starting to change too where more people are voluntarily passing younger bucks.
     
  12. marshallgrn

    marshallgrn New Member

    Apr 20, 2008
    in hiding
    for maturity and survival periods, like i said kill all the dinks you want, no skin off my back just dont whine when you dont see any big ones
     
  13. Jeremy

    Jeremy REGULAR MEMBER

    Dec 22, 2006
    oh...missouri never had any big deer till ar's. i forgot
     
  14. letemgrow

    letemgrow Well-Known Member

    [rquote=1280094&tid=89567&author=marshallgrn] like i said kill all the dinks you want, no skin off my back just dont whine when you dont see any big ones[/rquote]


    that's a fact :cheers:
     
  15. marshallgrn

    marshallgrn New Member

    Apr 20, 2008
    in hiding
    well there getting alot more now, rather on your grand parents place or not i dont know but ive seen a increase were i hunt
     
  16. Jeremy

    Jeremy REGULAR MEMBER

    Dec 22, 2006
    my inlaws you mean, and actually...we own part of that now as well.:cheers:
     
  17. Jeremy

    Jeremy REGULAR MEMBER

    Dec 22, 2006
    [rquote=1280100&tid=89567&author=marshallgrn] well there getting alot more now, rather on your grand parents place or not i dont know but ive seen a increase were i hunt[/rquote]

    that boils down to...i dont have to hunt as hard for a big buck now.:shrug:
    easy as possible=the American way
     
  18. marshallgrn

    marshallgrn New Member

    Apr 20, 2008
    in hiding
    havent you said you hunt on your grandparents place? either way not the point, if you think ars dont help small bucks become big bucks then thats your problem, i noticed you killed your biggedt buck ever last year, just a coincedence i guess
     
  19. letemgrow

    letemgrow Well-Known Member

    [rquote=1280106&tid=89567&author=Jeremy]

    that boils down to...i dont have to hunt as hard for a big buck now.:shrug:
    easy as possible=the American way[/rquote]

    Easy as possible is never that easy with mature bucks from what I have seen. They can be like ghosts and probably have us patterened far better than we have them patterened in most cases. :cheers:

    Most of the bucks I get game cam pics of I have never laid eyes on and the bucks that are shot are not on the cams so that tells me I need as many mature bucks as possible just to have the chance every so often to down one.