# Monitoring small mammal and amphibian abundances on the Willamette National Forest, Oregon (Long-Term Ecosystem Productivity experiment), 1995-1999

## Dataset

- **Database Code:** WE026

- **Title:** Monitoring small mammal and amphibian abundances on the Willamette National Forest, Oregon (Long-Term Ecosystem Productivity experiment), 1995-1999

- **Abstract:**

Previous descriptive and associative research approaches have identified associations between the amount of coarse woody debris (CWD) and either the occurrence or abundance of certain species of forest floor mammals and amphibians (e.g., Aubry et al. 1988, McComb et al. 1993). Managers are using information such as this along with observations regarding nutrient exchange sites around coarse woody debris to develop management guidelines for retention of woody debris following harvest. However, the hypothesis that retention of high levels of woody debris will result in the high numbers of certain species of forest floor vertebrates has not been tested in an experimental manner.


- **Keywords:** populations; primary production; coarse woody debris; amphibians; mammals; small mammals; Long-Term Ecological Research (LTER); populations; primary production

- **Temporal coverage:** 1995-09-01 to 1999-12-01

- **Principal Investigator:** Steven L. Garman


## Data Entities

1. WE02601
2. WE02602
3. WE02603
4. WE02604

## Entity 1: WE02601

### Attribute list

- **STCODE** — varchar, freetext

Study code


- **FORMAT** — numeric(1.000000), range  1.0000  1.0000, number

Format number


- **REPBLK** — numeric(1.000000), range  1.0000  3.0000, number

Replicate block


- **SUBPLOT** — numeric(1.000000), range  1.0000  19.0000, number

Subplot


- **YEAR** — datetime, freetext

Year


- **MONTH** — datetime, freetext

Month/(week in 1995)


- **DAY** — datetime, freetext

Day/(day of week in 1995)


- **TRANSECT** — numeric(1.000000), range  1.0000  4.0000, number

Transect


- **STATION** — numeric(1.000000), range  1.0000  10.0000, number

Station


- **TRAPTYPE** — varchar, enum

Type of trap

  - **P** — pitfall
  - **S** — Sherman
  - **U** — unknown


- **SPECIES** — varchar, enum

Species

  - **DITE** — Dicamptodon tenebrosus
  - **ELCO** — Elgaria coerulea
  - **ENES** — Ensatina eschscholtzii
  - **PLDU** — Plethodon dunni
  - **SCOC** — Sceloporus occidentalis
  - **TAGR** — Taricha granulosa
  - **CLCA** — Clethrionomys californicus
  - **GLSA** — Glaucomys sabrinus
  - **MIOR** — Microtus oregoni
  - **MUER** — Mustela erminea
  - **NECI** — Neotoma cinerea
  - **NEGI** — Neurotrichus gibbsii
  - **PEMA** — Peromyscus maniculatus
  - **SCOR** — Scapanus orarius
  - **SOSP** — Sorex
  - **SOTR** — Sorex trowbridgii
  - **TADO** — Tamiasciurus douglasii
  - **ZATR** — Zapus trinotatus
  - **TATO** — Tamias townsendii
  - **SOSO** — Sorex sonoma
  - **DIMA** — Didelphis marsupialis
  - **SOPA** — Sorex pacificus
  - **UNKN** — Unknown Mammal Species


- **CAPSTATUS** — varchar, enum

Capture status

  - **E** — escaped before any data could be ascertained
  - **N** — new
  - **NE** — new capture, but escaped prior to being tagged
  - **P** — torn ears; possible tag lost and recapture
  - **R** — recapture
  - **RE** — recapture, but escaped prior to being tagged
  - **RT** — retagged


- **LIVEDEAD** — varchar, enum

Live/dead status

  - **D** — dead
  - **L** — live


- **TAGLEFT** — varchar, freetext

Tag number - left ear


- **TAGRIGHT** — varchar, freetext

Tag number - right ear


- **TOENUMBER** — numeric(1.000000), range  1.0000  11.0000, number

Toe number


- **BODYLENGTH** — numeric(0.010000), range  1.0000  21.5000, centimeters

Body length


- **TAILLENGTH** — numeric(0.010000), range  1.0000  19.0000, centimeters

Tail length


- **WEIGHT** — numeric(0.100000), range  1.0000  205.0000, grams

Total weight


- **SEX** — varchar, enum

Gender

  - **F** — female
  - **M** — male
  - **U** — unknown


- **REPSTATUS** — varchar, enum

Reproductive condition

  - **-1** — unknown
  - **L** — lactating
  - **NL** — not lactating
  - **P** — parous
  - **TD** — testes descended
  - **TR** — testes recessed
  - **U** — unknown


- **DEADNUMBER** — varchar, freetext

Id of specimen


- **NOTENUMBER1** — numeric(1.000000), range  1.0000  5.0000, number

Note number for table 1


- **PROCESSED** — varchar, enum

Processing code

  - **** — normal
  - **1** — trap checked more than once a day


- **PUBIC** — varchar, enum

Pubic symphysis (1995)

  - **** — unknown
  - **1** — closed (nulliparous)
  - **2** — partly open (parous)
  - **3** — wide open (recent parturition)


- **PREG** — varchar, enum

Pregnancy condition (1995)

  - **** — unknown or not pregnant
  - **1** — pregnant


## Entity 2: WE02602

### Attribute list

- **STCODE** — varchar, freetext

Study code


- **FORMAT** — numeric(1.000000), range  2.0000  2.0000, number

Format number


- **REPBLK** — numeric(1.000000), range  1.0000  3.0000, number

Replicate block


- **SUBPLOT** — numeric(1.000000), range  1.0000  19.0000, number

Subplot


- **YEAR** — datetime, freetext

Year


- **MONTH** — datetime, freetext

Month/(week in 1995)


- **DAY** — datetime, freetext

Day/(day of week in 1995)


- **TRANSECT** — numeric(1.000000), range  1.0000  4.0000, number

Transect


- **STATION** — numeric(1.000000), range  1.0000  10.0000, number

Station


- **TRAPTYPE** — varchar, enum

Type of trap

  - **P** — pitfall
  - **S** — Sherman
  - **U** — unknown


- **SPECIES** — varchar, enum

Species

  - **DITE** — Dicamptodon tenebrosus
  - **ELCO** — Elgaria coerulea
  - **ENES** — Ensatina eschscholtzii
  - **PLDU** — Plethodon dunni
  - **SCOC** — Sceloporus occidentalis
  - **TAGR** — Taricha granulosa
  - **CLCA** — Clethrionomys californicus
  - **GLSA** — Glaucomys sabrinus
  - **MIOR** — Microtus oregoni
  - **MUER** — Mustela erminea
  - **NECI** — Neotoma cinerea
  - **NEGI** — Neurotrichus gibbsii
  - **PEMA** — Peromyscus maniculatus
  - **SCOR** — Scapanus orarius
  - **SOSP** — Sorex
  - **SOTR** — Sorex trowbridgii
  - **TADO** — Tamiasciurus douglasii
  - **ZATR** — Zapus trinotatus
  - **TATO** — Tamias townsendii
  - **SOSO** — Sorex sonoma
  - **DIMA** — Didelphis marsupialis
  - **SOPA** — Sorex pacificus
  - **UNKN** — Unknown Mammal Species


- **NOTENUMBER2** — numeric(1.000000), range  1.0000  4.0000, number

Note number for table 2


- **COMMENT** — varchar, freetext

Comment


## Entity 3: WE02603

### Attribute list

- **STCODE** — varchar, freetext

Study code


- **FORMAT** — numeric(1.000000), range  3.0000  3.0000, number

Format number


- **REPBLK** — numeric(1.000000), range  1.0000  3.0000, number

Replicate block


- **SUBPLOT** — numeric(1.000000), range  1.0000  19.0000, number

Subplot


- **YEAR** — datetime, freetext

Year


- **MONTH** — datetime, freetext

Month/(week in 1995)


- **DAY** — datetime, freetext

Day/(day of week in 1995)


- **TRANSECT** — numeric(1.000000), range  1.0000  4.0000, number

Transect


- **STATION** — numeric(1.000000), range  1.0000  10.0000, number

Station


- **TRAPTYPE** — varchar, enum

Type of trap

  - **P** — pitfall
  - **S** — Sherman
  - **U** — unknown


- **STATUS** — varchar, enum

Trap status

  - **SPRUNG** — indicates closed/distrubed trap


## Entity 4: WE02604

### Attribute list

- **STCODE** — varchar, freetext

Study code


- **FORMAT** — numeric(1.000000), range  4.0000  4.0000, number

Format number


- **REPBLK** — numeric(1.000000), range  1.0000  3.0000, number

Replicate block


- **SUBPLOT** — numeric(1.000000), range  1.0000  19.0000, number

Subplot


- **YEAR** — datetime, freetext

Year


- **SPECIES** — varchar, enum

Species

  - **DITE** — Dicamptodon tenebrosus
  - **ELCO** — Elgaria coerulea
  - **ENES** — Ensatina eschscholtzii
  - **PLDU** — Plethodon dunni
  - **SCOC** — Sceloporus occidentalis
  - **TAGR** — Taricha granulosa
  - **CLCA** — Clethrionomys californicus
  - **GLSA** — Glaucomys sabrinus
  - **MIOR** — Microtus oregoni
  - **MUER** — Mustela erminea
  - **NECI** — Neotoma cinerea
  - **NEGI** — Neurotrichus gibbsii
  - **PEMA** — Peromyscus maniculatus
  - **SCOR** — Scapanus orarius
  - **SOSP** — Sorex
  - **SOTR** — Sorex trowbridgii
  - **TADO** — Tamiasciurus douglasii
  - **ZATR** — Zapus trinotatus
  - **TATO** — Tamias townsendii
  - **SOSO** — Sorex sonoma
  - **DIMA** — Didelphis marsupialis
  - **SOPA** — Sorex pacificus
  - **UNKN** — Unknown Mammal Species


- **SHERMN** — numeric(1.000000), range  0.0000  52.0000, number

Number of individuals captured in sherman traps


- **SHERMR** — numeric(1.000000), range  0.0000  97.0000, number

Number of individuals recaptured in sherman traps


- **SHERMT** — numeric(1.000000), range  0.0000  130.0000, number

Total captures in sherman traps


- **PITN** — numeric(1.000000), range  0.0000  19.0000, number

Number of individuals captured in pitfall traps


- **PITR** — numeric(1.000000), range  0.0000  2.0000, number

Number of recaptures in pitfall traps


- **PITT** — numeric(1.000000), range  0.0000  20.0000, number

Total number of captures in pitfalls traps


- **TOTALI** — numeric(1.000000), range  0.0000  52.0000, number

Total number of individuals captured


- **TOTALR** — numeric(1.000000), range  0.0000  97.0000, number

Total number of recaptures


- **TOTALCAP** — numeric(1.000000), range  0.0000  130.0000, number

Total number of captures


- **SHERMD** — numeric(1.000000), range  0.0000  15.0000, number

Total number of deaths in shermans


- **PITD** — numeric(1.000000), range  0.0000  15.0000, number

Total number of deaths in pitfalls


- **TOTALD** — numeric(1.000000), range  0.0000  18.0000, number

Total number of deaths


- **MORTRATE** — numeric(0.000100), range  0.0000  100.0000, number

Mortality rate (deaths/individuals)


- **SHERMCAP** — numeric(0.000100), range  0.0000  9.6300, number

Number of individuals captured in shermans/100 undisturbed sherman trap nights


- **PITCAP** — numeric(0.000100), range  0.0000  5.9380, number

Same as shermcap but for pitfall traps


- **TOTALRATE** — numeric(0.000100), range  0.0000  6.0470, number

Total number of individuals/100 undisturbed trap nights (pitfall+sherman)


- **MAXSHERM** — numeric(1.000000), range  560.0000  640.0000, number

Maximum number of sherman trap nights


- **UNDSHERM** — numeric(1.000000), range  327.0000  640.0000, number

Number of undisturbed sherman trap nights


- **MAXPIT** — numeric(1.000000), range  88.0000  320.0000, number

Maximum number of pitfall trap nights


- **UNDPIT** — numeric(1.000000), range  88.0000  320.0000, number

Number of undistrubed pitfall trap nights


- **MAXTOT** — numeric(1.000000), range  728.0000  960.0000, number

Maxumum number of trap nights (pitfall+sherman)


- **UNDTOT** — numeric(1.000000), range  647.0000  960.0000, number

Total number of undistrubed trap nights (pitfall+sherman)


## Attribute Definitions

**BODYLENGTH**

Body length


**CAPSTATUS**

Capture status


**COMMENT**

Comment


**DAY**

Day/(day of week in 1995)


**DEADNUMBER**

Id of specimen


**FORMAT**

Format number


**LIVEDEAD**

Live/dead status


**MAXPIT**

Maximum number of pitfall trap nights


**MAXSHERM**

Maximum number of sherman trap nights


**MAXTOT**

Maxumum number of trap nights (pitfall+sherman)


**MONTH**

Month/(week in 1995)


**MORTRATE**

Mortality rate (deaths/individuals)


**NOTENUMBER1**

Note number for table 1


**NOTENUMBER2**

Note number for table 2


**PITCAP**

Same as shermcap but for pitfall traps


**PITD**

Total number of deaths in pitfalls


**PITN**

Number of individuals captured in pitfall traps


**PITR**

Number of recaptures in pitfall traps


**PITT**

Total number of captures in pitfalls traps


**PREG**

Pregnancy condition (1995)


**PROCESSED**

Processing code


**PUBIC**

Pubic symphysis (1995)


**REPBLK**

Replicate block


**REPSTATUS**

Reproductive condition


**SEX**

Gender


**SHERMCAP**

Number of individuals captured in shermans/100 undisturbed sherman trap nights


**SHERMD**

Total number of deaths in shermans


**SHERMN**

Number of individuals captured in sherman traps


**SHERMR**

Number of individuals recaptured in sherman traps


**SHERMT**

Total captures in sherman traps


**SPECIES**

Species


**STATION**

Station


**STATUS**

Trap status


**STCODE**

Study code


**SUBPLOT**

Subplot


**TAGLEFT**

Tag number - left ear


**TAGRIGHT**

Tag number - right ear


**TAILLENGTH**

Tail length


**TOENUMBER**

Toe number


**TOTALCAP**

Total number of captures


**TOTALD**

Total number of deaths


**TOTALI**

Total number of individuals captured


**TOTALR**

Total number of recaptures


**TOTALRATE**

Total number of individuals/100 undisturbed trap nights (pitfall+sherman)


**TRANSECT**

Transect


**TRAPTYPE**

Type of trap


**UNDPIT**

Number of undistrubed pitfall trap nights


**UNDSHERM**

Number of undisturbed sherman trap nights


**UNDTOT**

Total number of undistrubed trap nights (pitfall+sherman)


**WEIGHT**

Total weight


**YEAR**

Year


## Enumerated Domains

### TRAPTYPE

- **P** — pitfall

- **S** — Sherman

- **U** — unknown

### SPECIES

- **DITE** — Dicamptodon tenebrosus

- **ELCO** — Elgaria coerulea

- **ENES** — Ensatina eschscholtzii

- **PLDU** — Plethodon dunni

- **SCOC** — Sceloporus occidentalis

- **TAGR** — Taricha granulosa

- **CLCA** — Clethrionomys californicus

- **GLSA** — Glaucomys sabrinus

- **MIOR** — Microtus oregoni

- **MUER** — Mustela erminea

- **NECI** — Neotoma cinerea

- **NEGI** — Neurotrichus gibbsii

- **PEMA** — Peromyscus maniculatus

- **SCOR** — Scapanus orarius

- **SOSP** — Sorex

- **SOTR** — Sorex trowbridgii

- **TADO** — Tamiasciurus douglasii

- **ZATR** — Zapus trinotatus

- **TATO** — Tamias townsendii

- **SOSO** — Sorex sonoma

- **DIMA** — Didelphis marsupialis

- **SOPA** — Sorex pacificus

- **UNKN** — Unknown Mammal Species

### CAPSTATUS

- **E** — escaped before any data could be ascertained

- **N** — new

- **NE** — new capture, but escaped prior to being tagged

- **P** — torn ears; possible tag lost and recapture

- **R** — recapture

- **RE** — recapture, but escaped prior to being tagged

- **RT** — retagged

### LIVEDEAD

- **D** — dead

- **L** — live

### SEX

- **F** — female

- **M** — male

- **U** — unknown

### REPSTATUS

- **-1** — unknown

- **L** — lactating

- **NL** — not lactating

- **P** — parous

- **TD** — testes descended

- **TR** — testes recessed

- **U** — unknown

### PROCESSED

- **** — normal

- **1** — trap checked more than once a day

### PUBIC

- **** — unknown

- **1** — closed (nulliparous)

- **2** — partly open (parous)

- **3** — wide open (recent parturition)

### PREG

- **** — unknown or not pregnant

- **1** — pregnant

### STATUS

- **SPRUNG** — indicates closed/distrubed trap
