Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

  • Fence locations
    Started: 1991-04-01

    On Mansfield, drift fences located in the Browns River drainage. Two fences at 1200' (Proctor Maple Research Center) (1) in mixed northern hardwoods, (2) in hemlock stand; 2200' (off CCC road in Underhill State Park) in mixed northern hardwoods; and at 3200' (off Sunset Ridge Trail) in spruce and fir forest. No data collected in 2009.

  • Monitoring sites
    Started: 2008-04-01

    At Lye Brook, monitoring restarted with three drift fences located outside of the north and south ends of wilderness area used for monitoring: 860' fence near Lye Brook Falls Access area, 2400' and 2700' fence off Branch Pond Road

  • Preparation and sampling
    Started: 1991-04-01

    Drift fence bucket lids removed the day prior to anticipated heavy rain events, with samples collected after rain. Sampling done approximately 3 times per month, April through October.

  • Length measurements
    Started: 1994-04-01

    At each drift fence, length measurements were taken only on the first three individuals from each size class and species. Total length of specimens measured from the tip of the nose to the tip of the body or tail. Snout-to-vent length also measured as length from tip of snout to vent or cloacal opening.

Past Methods (No longer in use)

  • Drift fence locations
    Started: 1993-04-01
    Ended: 2002-10-31

    At Lye Brook, drift fences located outside of the north and south ends of wilderness area used for inventory: 860' fence near Lye Brook Falls Access area, 2400' and 2700' fence off Branch Pond Road.

  • Drift fence location distinction
    Started: 1995-04-01
    Ended: 2002-10-31

    At Lye Brook, only the lower elevation drift fence (860') was used for inventory, the two upper elevation (2400' and 2700') were used for monitoring

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
#_Field_workers#_Field_workers


Air_TempAir_Temp


Common_nameCommon_name

Nominal
Date_EnteredDate_Entered

DateTime Date/Time Format: MM/DD/YYYY
Ending_timeEnding_time

DateTime Date/Time Format: hh:mm
Info_Info_

Nominal
Large_BlockLarge_Block

Nominal
Latin_nameLatin_name

Nominal
Latitude_in_dec__degreesLatitude_in_dec__degrees


Longitude_in_dec__degreesLongitude_in_dec__degrees


Number_egg_massesNumber_egg_masses

Nominal
Number_totalNumber_total


Num_Field_workersNum_Field_workers


Observation_IDObservation_ID


Other_speciesOther_species

Nominal
Other_species__Other_species__

Nominal
Other_species___Other_species___

Nominal
Physical_infoPhysical_info

Nominal
Site_notesSite_notes

Nominal
Site_notes__Site_notes__

Nominal
Site_notes___Site_notes___

Nominal
Specific_locSpecific_loc

Nominal
Starting_timeStarting_time

DateTime Date/Time Format: hh:mm
SV_valueSV_value


Total_timeTotal_time


Total_valueTotal_value


CountyCounty

county in which animal was identified or collected

Nominal
TownTown

The town in which sampling occurred

Nominal
Large BlockBlock information

The name of the larger block within which sampling was done

Nominal
DateDate of collection

The date of the collection

DateTime Date/Time Format: YYYY-MM-DD
SiteSite information

The site within the block that was being sampled

Nominal
Latin nameScientific name

The scientific (Latin) name of the individual captured

NominalAmphibian Survey and Monitoring Drift Fence Species Codes
+ show
Appears in data asMeaning
Ambystoma maculatum (Ambystoma maculatum) - View ITIS Record
Pseudacris crucifer (Pseudacris crucifer) - View ITIS Record
Lithobates sylvaticusWood Frog (Lithobates sylvaticus) - View ITIS Record
Lithobates palustrisPickerel Frog (Lithobates palustris) - View ITIS Record
Eurycea bislineata (Eurycea bislineata) - View ITIS Record
Anaxyrus americanusAmerican Toad (Anaxyrus americanus) - View ITIS Record
Gyrinophilus porphyriticusSpring Salamander; salamandre pourpre (Gyrinophilus porphyriticus) - View ITIS Record
Desmognathus fuscusNorthern Dusky Salamander; Dusky Salamander; salamandre sombre du nord (Desmognathus fuscus) - View ITIS Record
Thamnophis sirtalis (Thamnophis sirtalis) - View ITIS Record
Notophthalmus viridescensEastern Newt; triton vert (Notophthalmus viridescens) - View ITIS Record
Pletodon cinereus (Plethodon cinereus) - View ITIS Record
Lithobates clamitansGreen Frog (Lithobates clamitans) - View ITIS Record
Hyla versicolorGray Treefrog (Hyla versicolor) - View ITIS Record
Common nameCommon name

The common name for the individual

Nominal
Number totalTotal number captured

The total number of individuals captured

Ratio Units: dimensionless
Precision: 1
SV valueSnout to vent length

standard length measurement for amphibians (tip of snout to end of vent)

Ratio
Unit: millimeter
Precision: 0.1
Total valueTotal length

The total length of the specimen

Ratio
Unit: millimeter
Precision: 0.1
Physical infoPhysical information

Physical information about the species

Nominal
Specific locSpecific location

The specific location of the data collection

Nominal
StatusVisit status

The outcome of the search in terms of species detection

Nominal
InfoGeneral information

General information about the specific visit

Nominal
WeatherWeather on search date

Description of the weather on search date

Nominal
Air TempAir temperature

Air temperature at time of data collection

Interval
Unit: degree Celsius
Precision: 0.01
MethodMethod of capture

How the specimen was captured

Nominal
Starting timeStarting time

The time when the search begain

DateTime Date/Time Format: hh:mm
Ending timeEnding time

The time when the search was ended

DateTime Date/Time Format: hh:mm
Total timeTotal time

Total time spent searching on this date

Ratio
Unit: minute
Precision: 1
NamesNames of field workers

The names of field workers

Nominal
Num field workersNumber of field workers

The number of workers collecting data for this survey (indicator of search intensity)

Ratio Units: dimensionless
Precision: 1
Site notesSite notes

Notes about the site at the time of collection

Nominal
Other speciesOther species observed

Other species observed during the visit

Nominal
ClassSpecies class

Common name of the species class, reptile or amphibian

Nominal
OrderSpecies order

The scientific name of the order of the specimen

Nominal
Date EnteredDate entered

Date the data was originally entered

DateTime Date/Time Format: YYYY-MM-DD
Observation IDObservation ID

A unique record identifying the particular observation

Nominal

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Past Sampling Equipment (No longer in use)

  • Drift fences, buckets, snake traps
    Started: 1993-04-01
    Ended: 1995-10-31

    At Lye Brook, 3 drift fences constructed of straight sections of 30-meter lengths of aluminum flashing. 17-liter plastic buckets were placed at the end, with #10 tin cans with funnel tops in the middle. Screen "snake" traps also used.

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    At Lye Brook Area, includes Lye Brook access area (840') and Branch Pond Road (2400' and 2700').

    Minimum Altitude: 840 feet

    Maximum Altitude: 2700 feet

  • Site Description

    West slope of Mount Mansfield at 3 elevations: 1200', 2200' and 3200'

    Minimum Altitude: 1200 feet

    Maximum Altitude: 3200 feet