microarthropods

Dataset: 

Study number: 

372

Data set ID: 

210372001

Abstract: 

*Changes in microarthropod assemblages were monitored in six types of decomposing surface leaf-litter confined in mesh bags and set across a Chihuahuan Desert watershed for 17 months. The following hypotheses were tested: 1) microarthropod density and diversity are higher in soils with maximum surface litter accumulation, and 2) temporal patterns of density and diversity are more dependent on seasonal factors and physical disturbances than on the decompositional stage of the litter.

Data sources: 

data_JornadaStudy_372_transect_leaf_litter_microarthropod

LTER Core Area(s): 

Dataset: 

Study number: 

394

Data set ID: 

210394006

Abstract: 

**The objective of the present research was to determine whether there have been changes in the structure and function of the surface (0-20cm) soil system, the zone most affected by litter decomposition, which is associated with the rapid movement of mesquite from historical habitats (arroyo and playa fringe) into recent habitats (grassland and dunes). We hypothesized that the soil biotic communities would be poorly developed in the recent mesquite habitats because of lower soil C and nutrient concentrations. Data set contains microarthropod code, order, family, total number of mites, and trophic group for microarthropods sampled at two depth ranges in the top 20 cm of soil.

Data sources: 

data_JornadaStudy_394_mesquite_surface_soil_microarthropod

LTER Core Area(s): 

Dataset: 

Study number: 

386

Data set ID: 

210386011

Abstract: 

[Mesquite root tube soil nutrients from soil cores collected under mesquite (Prosopis glandulosa) at the dune, playa, and grassland sites. Data consists of NO3, NH4, and soil H2O (percent).]

Data sources: 

data_JornadaStudy_386_mesquite_phenology_root_tube_soil _nutrient

LTER Core Area(s): 

Dataset: 

Study number: 

386

Data set ID: 

210386010

Abstract: 

[Soil mite numbers associated with soil cores collected under mesquite {Prosopis glandulosa) at the dune, playa and grassland sites.]

Data sources: 

data_JornadaStudy_386_mesquite_phenology_soil_mite

LTER Core Area(s): 

Dataset: 

Study number: 

386

Data set ID: 

210386001

Abstract: 

Soil samples were collected from mesquite dune site, and analyzed for nutrient content in the plant, N-mineralization potential, rhizobium counts, and microarthropods counts.

Data sources: 

data_JornadaStudy_386_mesquite_phenology_soil_microarthropod

LTER Core Area(s): 

Dataset: 

Study number: 

385

Data set ID: 

210385009

Abstract: 

A mesocosm experiment was conducted on fluff grass plants to look at the effect of exclusion of mites (with chlordane), nematodes (with NEMACUR), mites and nematodes, on soil available, total and microbial nitrogen. Numbers of microarthropods per 1000g of soil is recorded in this data file.

Data sources: 

data_JornadaStudy_385_fluff_grass_mesocosm_microarthropod_numbers

LTER Core Area(s): 

Dataset: 

Study number: 

385

Data set ID: 

210385007

Abstract: 

Twenty 6 x 6 m plots were established with a 3 m buffer between plots. Five plots were randomly assigned to one of four treatments: (1) chlordane amendment 100ml AI (active ingredients) per 10,000 ml) to exclude microarthropods, (2) sprinkler irrigation (6 mm per week), (3) sprinkler irrigation (6 mm/week) plus chlordate amendment (as above), (4) control (no treatment). Measurements are taken on Erioneuron pulchellum at monthly intervals. Three randomly located subsamples are collected from each plot. Data set contains plant diameters, mites soil weight, root weight, nematode soil weight, root total nitrogen, and nematode number.

Data sources: 

data_JornadaStudy_385_fluff_grass_plant_dynamics

LTER Core Area(s): 

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