Dataset

Database Code

SA025

Title

Aquatic and terrestrial insect activity phenology with trap collections at the Andrews Experimental Forest, 2009-2014

Abstract

This study was designed to evaluate the influence of microclimatic heterogeneity, associated with complex terrain, on phenology and to evaluate potential trophic responses to scenarios of climate change, disturbance and land use. We focus on a simplified model trophic system involving vascular plants, terrestrial and aquatic insects, and migratory neotropical and resident birds. The model trophic system is interesting because the phenologies of different components in the model system are independent (cued by various abiotic drivers) and dependent (due to trophic interactions), potentially leading to complex system behaviors. Plant and poiklothermic animal (ex. invertebrates) phenologies are highly temperature dependent. Phenologies of terrestrial plants and invertebrates would therefore likely exhibit wide spatial and temporal variation across the landscape in response to temperature variation associated with elevational differences, cold air drainages patterns, and temperature inversions. Aquatic invertebrate phenologies are also tied to temperature, but stream temperatures are influenced by different factors than those driving air temperatures and they may be less sensitive to complex terrain. For the invertebrate part of this study, we are examining spring-time (April through June) flying (terrestrial and adult aquatic) insect activity and adult aquatic insect emergence across a range of sites in the HJ Andrews Experimental Forest. Flying insect activity will be assessed using malaise traps deployed at 16 sites ranging from 450m to over 1300m in elevation, and with a variety of forest stand ages and slope aspects. Emerging aquatic insects will be collected with emergence traps in six 1st to 2nd order streams ranging from 450m to 1000m in elevation, and differing in water source (spring vs run-off) and surrounding forest age. Insects from malaise traps will be identified to varying levels from order to genus, depending on the group and available keys. Adult aquatic insects will be identified to varying levels from subfamily to species. We will be monitoring overall activity levels and emergence rates over time as well as the activity/emergence of selected key taxa. Data collection began in 2009 and is ongoing.

Keywords

habitats; communities; populations; biodiversity; spatial variability; aquatic ecosystems; streams; invertebrates; aquatic invertebrates; arthropods; insects; birds; Long-Term Ecological Research (LTER); entomology; temporal variability; populations

Date begin

2009-04-09

Date end

2014-07-02

Principal Investigator

Sherri L. Johnson

Entities

1. SA02501
2. SA02502
3. SA02503
4. SA02504

1. SA02501 - Attribute list

2. SA02502 - Attribute list

3. SA02503 - Attribute list

4. SA02504 - Attribute list

Attribute definitions

ALLOPERLA_FRATERNA

number of Alloperla fraterna in sample

ANASPIS

number of Anaspis in sample

AREA_SAMPLED

stream-bottom area sampled in square meters

BOLBOMYIA

number of Bolbomyia in sample

COMMENTS

comments

DAYS_SET

days trap set

DBCODE

FSDB Database Code

DOLOPHILODES_DORCUS

number of Dolophilodes dorcus in sample

ENTITY

Entity number

MOSELIA_INFUSCATA

number of Moselia infuscata in sample

PARALEPTOPHLEBIA_TEMPORALIS

number of Paraleptophlebia temporalis in sample

PICKUP_DATE

trap sample collection date

REP

Replicate for a given site, trap type, trap number and year

SAMPLE_ID

unique sample code; identifies the type of trap, site, year and sample number

SCELLUS

number of Scellus in sample

SET_DATE

trap set date

SITE_ID

Site code

TAXON

taxon identified, mainly genus

TAXON_COUNT

number of the taxon in sample

TOTAL_AQUATIC_ADULTS

total number of winged insects in sample

TOTAL_BEETLE

total number of beetles in sample

TOTAL_FUNGUS_GNAT

total number offungus gnats in sample

TOTAL_WINGED

total number of winged insects in sample

TRAPS_PICKED_UP

number of traps

TRAP_NO

Trap number for a given site, trap type and year

TRAP_TYPE

Type of trap used in the field for sampling

YEAR

year of sample collection

Enumerated domains

Enumerated domain for attribute: DBCODE

Enumerated domain for attribute: TRAP_TYPE

Enumerated domain for attribute: SITE_ID

Enumerated domain for attribute: REP

Enumerated domain for attribute: TAXON