PBG05 Response of bird abundance to the Patch-Burn Grazing experiment at Konza Prairie

Summary

Short name: 

PBG05

Abstract: 

‘PBG’ datasets are associated with a long-term, large-scale study that is addressing the effects of fire-grazing interactions in the context of a Patch-Burn Grazing management system designed to promote grassland heterogeneity.  Effects of patch-burn grazing management on plant and animal diversity and the nature and variety of wildlife habitat are being assessed in two replicate management units, each consisting of three pastures (watersheds) designated C03A/C03B/C03C and C3SA/C3SB/C3SC.  In each patch-burn grazing unit, one watershed is burned and two that are left unburned in a given year.  The burning treatments are rotated annually so that each pasture is burned every third year. Each patch-burn grazing unit is paired with an annually-burned pasture for comparison with traditional grazing systems (C01A and C1SB). All grazing units are stocked with cow/calf pairs from approximately 1 May until 1 Oct at a stocking density equal to 3.2 ha per cow/calf. To examine the impact of patch burning and grazing in all 8 units, we monitor changes in plant species composition, residual biomass, grassland bird populations, insect populations, small mammal populations, soil nutrients, and stream water quality1 (1C3SA/C3SB/C3SC unit only).  The KSU Department of Animal Science monitors cattle performance, including weight gain and body condition to assess the economic feasibility of using patch-burn management on a widespread basis.

This data set focuses on variation in avian abundance, diversity, and nesting activity between patch-burned and uniformly-burned pastures at Konza Prairie Biological Station.  Three watershed units (C3A, C3B, C3C) constitute “patches” that are alternately burned in a 3-year rotation within a single, fenced pasture (i.e., patch-burn grazing).  Two additional watersheds serve as controls:  a grazed, annually/uniformly-burned watershed (C1A) and an ungrazed, annually/uniformly-burned watershed (1D).  Eight, 300-m line transects were established in each watershed from which observers record the numbers of individuals per bird species and the perpendicular distance of individual birds from each transect.  Three visits are made to each watershed between the last week in May through the end of June, where two “core” transects per watershed are sampled each visit.  Six additional transects per watershed are sampled, but only once in a given year (two peripheral transects are sampled per watershed, per visit).  The survey data will allow estimates of relative abundance, absolute density (determined from distance sampling), and species composition and diversity among the patch-burned and control watersheds.  Vegetation structure is sampled along survey transects to characterize management-specific variation in physical attributes of avian habitat.  Nest data are collected through systematic searches of nests throughout watersheds or from inclusion of nests found haphazardly by observers.  Nest data are being analyzed for variation in daily nest survival and levels of brood parasitism of various species among the watershed units.

DOI: 

10.6073/pasta/ae396cec6204f98bee06f82a85eac0df

Data set ID: 

119

Data sources: 

Variables: 

Datacode
  • Label:
  • Definition: Data Set Code
  • Type: Nominal
  • Missing values: None specified
Rectype
  • Label:
  • Definition: Record type
  • Type: Nominal
  • Missing values: None specified
Recyear
  • Label:
  • Definition: Recyear
  • Type: Physical quantity
  • Unit: Year (YYYY)
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Watershed
  • Label:
  • Definition: Watershed Name
  • Type: Nominal
  • Missing values: None specified
Transect
  • Label:
  • Definition: Transect. First capital alphanumeric characters = watershed ID. Next lowercase letter = cardinal direction of topographic bolck within watershed (n, s, e, w). Last capital alphanumeric characters = transect ID # ("Core" = regularly surveyed "core" transect per block; "P_" transects are one-time surveyed "peripheral" transects).
  • Type: Nominal
  • Missing values: None specified
Direction
  • Label:
  • Definition: Cardinal direction from which survey began
  • Type: Nominal
  • Missing values: None specified
DayofYear
  • Label:
  • Definition: Julian date
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
StartTime
  • Label:
  • Definition: 24-hr time survey began
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
EndTime
  • Label:
  • Definition: 24-hr time survey completed
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Obs
  • Label:
  • Definition: 3-letter initials of observer
  • Type: Nominal
  • Missing values: None specified
Sky
  • Label:
  • Definition: 0=clear, few clouds; 1=partly cloudy, scattered or variable sky; 2=cloudy, broken, or overcast; 3=rain; 4-6=fog/smoke; 7=snow; 8=showers (intermittent rain); 9=light rain or drizzle; 10=tree leaf drip
  • Type: Nominal
  • Missing values: None specified
Wind
  • Label:
  • Definition: 1=1-3mph, wind direction shown by smoke drift; 2=4-7mph, wind felt on face, leaves rustle; 3=8-12mph, leaves, twigs in constant motion; 4=13-18mph, raises dust and loose paper, branches sway; 5=>18mph, trunks of small trees in leaf sway
  • Type: Nominal
  • Missing values: None specified
Temp
  • Label:
  • Definition: Temperature in Centigrade
  • Type: Physical quantity
  • Unit: degree
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Species
  • Label:
  • Definition: Species code, 4-letter AOU alpha code
  • Type: Nominal
  • Missing values: None specified
Sex
  • Label:
  • Definition: Sex status. M, F, or MF; "u" or blank if unknown
  • Type: Nominal
  • Missing values: None specified
Vdetection
  • Label:
  • Definition: Visual detection. Enter 1 if visual detection, else leave blank
  • Type: Nominal
  • Missing values: None specified
Sdetection
  • Label:
  • Definition: Song detection. Enter 1 if song of bird heard, else leave blank
  • Type: Nominal
  • Missing values: None specified
Cdetection
  • Label:
  • Definition: Call/alarm detectio. Enter 1 if alarm / call note of bird heard, else leave blank
  • Type: Nominal
  • Missing values: None specified
Fly
  • Label:
  • Definition: Fly, Enter 1 if flyover only (no distance measured within survey spacce, but bird flew over habitat); else leave blank
  • Type: Nominal
  • Missing values: None specified
Flush
  • Label:
  • Definition: Flush. Bird may have been flushed by observer
  • Type: Nominal
  • Missing values: None specified
Distance
  • Label:
  • Definition: Distance. Perpendicular distance (m)
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
GroupSize
  • Label:
  • Definition: Group size of birds. Assume "1" of not entered.
  • Type: Nominal
  • Missing values: None specified
NumOfMale
  • Label:
  • Definition: Num Of Male. male birds seen if a group (>1 bird)
  • Type: Nominal
  • Missing values: None specified
NumOfFemale
  • Label:
  • Definition: Num Of Female. Number of female birds seen if a group (>1 bird)
  • Type: Nominal
  • Missing values: None specified
Comments
  • Label:
  • Definition: Comments for the survey
  • Type: Nominal
  • Missing values: None specified

Variables: 

Flag
  • Label:
  • Definition: Whether nest information was complete (when marked “Okay”)
  • Type: Nominal
  • Missing values: None specified
DataCode
  • Label:
  • Definition: Dataset Code
  • Type: Nominal
  • Missing values: None specified
Rectype
  • Label:
  • Definition: Record type
  • Type: Nominal
  • Missing values: None specified
RecYear
  • Label:
  • Definition: Year collected
  • Type: Physical quantity
  • Unit: Year (YYYY)
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
NestID
  • Label:
  • Definition: Unique nest ID, but no consistency between years
  • Type: Nominal
  • Missing values: None specified
Species
  • Label:
  • Definition: 4-digit AOU (now AOS) approved bird species code
  • Type: Nominal
  • Missing values: None specified
Unit
  • Label:
  • Definition: Konza watershed
  • Type: Nominal
  • Missing values: None specified
Graze
  • Label:
  • Definition: Grazed by cattle (Y or N)
  • Type: Nominal
  • Missing values: None specified
Burn
  • Label:
  • Definition: Years since last prescribed burn (0, 1, 2)
  • Type: Nominal
  • Missing values: None specified
Patch
  • Label:
  • Definition: Effective management regime and year since burn, includes patch-burn grazing (PBG0-2), annually burning and grazing (ABG), and annually burning but no grazing (ABN)
  • Type: Nominal
  • Missing values: None specified
Treatment
  • Label:
  • Definition: Effective management regime, includes patch-burn grazing (PBG), annually burning and grazing (ABG), and annually burning but no grazing (ABN)
  • Type: Nominal
  • Missing values: None specified
UTM1
  • Label:
  • Definition: East/West coordinate
  • Type: Nominal
  • Missing values: None specified
UTM2
  • Label:
  • Definition: North/South coordinate
  • Type: Nominal
  • Missing values: None specified
Method
  • Label:
  • Definition: Method that was used to first locate the nest
  • Type: Nominal
  • Missing values: None specified
StageFound
  • Label:
  • Definition: At what stage the nest was first located (Building, Laying, Incubation, or Brooding)
  • Type: Nominal
  • Missing values: None specified
SurvTillIncub
  • Label:
  • Definition: Whether the nest survived until at least one egg hatched (Y or N)
  • Type: Nominal
  • Missing values: None specified
DateFirstFound
  • Label:
  • Definition: The date on which the nest was first located
  • Type: Date/time
  • Date format: MM:DD:YYYY
  • Missing values: None specified
DateLastPresent
  • Label:
  • Definition: The last date on which a nest was still considered active
  • Type: Date/time
  • Date format: MM:DD:YYYY
  • Missing values: None specified
DateLastChecked
  • Label:
  • Definition: The final date a nest was visited and nest fate was determined
  • Type: Date/time
  • Date format: MM:DD:YYYY
  • Missing values: None specified
FirstFound
  • Label:
  • Definition: The Julian date on which the nest was first located
  • Type: Nominal
  • Missing values: None specified
LastPresent
  • Label:
  • Definition: The last Julian date on which a nest was still considered active
  • Type: Nominal
  • Missing values: None specified
LastChecked
  • Label:
  • Definition: The final Julian date a nest was visited and nest fate was determined
  • Type: Nominal
  • Missing values: None specified
NestFate
  • Label:
  • Definition: The final fate of the nest, includes Successful (S), Failed (F), or Unknown (U)
  • Type: Nominal
  • Missing values: None specified
Fate
  • Label:
  • Definition: The numerical final fate of the nest for nest survival analyses, includes Successful (0), Failed (1), or Unknown (2)
  • Type: Nominal
  • Missing values: None specified
Cause
  • Label:
  • Definition: Whether a nest was successful or not, and lists the cause of failure if the nest was not successful. A failed nest could have been Abandoned, Depredated, Trampled, or have an Unknown cause of failure
  • Type: Nominal
  • Missing values: None specified
Parasitized
  • Label:
  • Definition: Whether a nest was parasitized by Brown-headed Cowbirds (Molothrus ater) or not
  • Type: Nominal
  • Missing values: None specified
Maxhosteggs
  • Label:
  • Definition: The maximum number of host eggs present in the nest cup at one time
  • Type: Nominal
  • Missing values: None specified
MaxBHCOeggs
  • Label:
  • Definition: The maximum number of parasitic eggs present in the nest cup at one time
  • Type: Nominal
  • Missing values: None specified
Hosthatched
  • Label:
  • Definition: The total number of host eggs that successfully hatched
  • Type: Nominal
  • Missing values: None specified
BHCOhatched
  • Label:
  • Definition: The total number of parasitic eggs that successfully hatched
  • Type: Nominal
  • Missing values: None specified
Maxhostyoung
  • Label:
  • Definition: The maximum number of host young present in the nest cup at one time
  • Type: Nominal
  • Missing values: None specified
MaxBHCOyoung
  • Label:
  • Definition: The maximum number of parasitic young present in the nest cup at one time
  • Type: Nominal
  • Missing values: None specified
Hostfledged
  • Label:
  • Definition: The total number of host young that successfully fledged from the nest
  • Type: Nominal
  • Missing values: None specified
BHCOfledged
  • Label:
  • Definition: The total number of parasitic young that successfully fledged from the nest
  • Type: Nominal
  • Missing values: None specified

Categories
Dates

Date Range: 

Saturday, January 1, 2011 to Friday, December 30, 2016

Publication Date: 

Wednesday, August 2, 2017
People

Owner/Creator: 

Contact: 

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