Find research datasets worth reusing

openCC (other)Jun 2024View details →

Cothran, R. D., F. Radarian, and R. A. Relyea. 2011. Altering aquatic food webs with a global insecticide: Arthropod-amphibian links in mesocosms that simulate wetland communities. Journal of the North American Benthological Society 30:893-912.

Pesticides play a critical role in maximizing yields of economically important crops and minimizing the human health threats of disease-carrying pests, but they often have collateral effects on nontarget species. We used a mesocosm study to address how the most commonly used insecticide in the USA, malathion, applied at low, ecologically relevant concentrations (20 and 110 mg/L) affects species interactions in aquatic communities. Unlike many community ecotoxicology studies, our study assessed how malathion affects both consumptive and nonconsumptive effects of predators. We also considered how the vertical distribution of predator cues and malathion (caused by potential stratification) affects species interactions. We found no evidence for vertical stratification of malathion, a result suggesting that exposure to the pesticide was uniform throughout the water column. Malathion was lethal to some primary consumers (cladocerans) at both concentrations and to top predators (dragonflies) at the highest concentration (110 mg/L). These lethal effects initiated density-mediated indirect effects in both cases. Malathion also may have decreased dragonfly foraging efficiency, resulting in increased tadpole survival (trait-mediated indirect effect), which decreased the resources used by tadpoles (periphyton). Collectively, our results show that malathion alters species interactions. However, we suggest that the degree to which pesticides affect aquatic communities will depend strongly on the species composition of communities. Therefore, the community-level consequences of pesticide exposure are likely to vary across the ecological landscape.

openCC (other)May 2021View details →

Arthropod abundance in sweep net samples of sites near Crested Butte, CO in 2017-2020

The purpose of this study was to track year-to-year variation in arthropod communities of the host plant Ligusticum porteri (Apiaceae). In each study year (2017-2020), we used sweep nets to sample the arthropods at each of twenty sites containing populations of L. porteri. Sampling took place the end of June (June 28-30th), and we standardized sampling effort across years. Two field technicians netted insects from vegetation at a consistent pace for 30 seconds each. We sorted and identified insects to Order using a dissection microscope and a project-specific taxonomic key. Non-insect arthropods were also counted but not identified to additional taxonomic levels.

openOpenAug 2021View details →

SGS-LTER Long-Term Montioring Project: Arthropod Pitfall Trapping on Small Mammal Trapping Webs on the Central Plains Experimental Range, Nunn, Colorado, USA 1998-2006, ARS Study Number 118 (Reformatted to a Darwin Core Archive)

This data package is formatted as a Darwin Core Archive (DwC-A, event core). For more information on Darwin Core see https://www.tdwg.org/standards/dwc/. This Level 2 data package was derived from the Level 1 data package found here: https://pasta.lternet.edu/package/metadata/eml/edi/328/2, which was derived from the Level 0 data package found here: https://pasta.lternet.edu/package/metadata/eml/knb-lter-sgs/134/17. The abstract below was extracted from the Level 0 data package and is included for context: This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. Additional information and referenced materials can be found: http://hdl.handle.net/10217/83450. With the exception of heteromyids, eg kangaroo rats and pocket mice, most small rodents in shortgrass steppe are omnivorous. Depending on season, arthropods (insects and arachnids) make up 40-85% of the diet of grasshopper mice and thirteen-lined ground squirrels, the most widespread rodents in northern shortgrass steppe. Small mammals are among the most important predators of ground-dwelling macroarthropods and herbivorous insects provide a direct resource link between weather and plant production. Understanding temporal variability in the abundance of arthropods is central to determining the mechanisms that drive small rodent populations. At present, there are no long-

openCustomDec 2013View details →

Invertebrates of the Andrews Experimental Forest: An annotated list of insects and other arthropods, 1971 to 2002

This publication is not a pro forma species list; rather, it has been generated as the result of diverse ecological studies centered on and around the Andrews Forest beginning in 1971. No attempt has been made to exhaustively collect the area with methodologies appropriate to each invertebrate group. This list provides some insight into the enormous invertebrate diversity present in the coniferous forests of the Pacific Northwest. It provides reference material for investigators who might be engaged in ecological investigations. We hope that these data, set in an ecological context, will stimulate collaboration and facilitate the design of future research.

openOpenDec 2015View details →

Abundance of major taxonomic groups of invertebrates (arthropods and gastropods) collected with pitfall traps at four sites near Toolik Field Station Arctic LTER, Alaska in the summer of 2010.

Invertebrates (spiders, insects and slugs) were collected weekly using pitfall traps at four sites near the Arctic LTER at Toolik Field Station, Alaska. Traps were placed along transects in shrub (shrub-dominant) and open (tussock-dominant) tundra sites. Pitfall traps were placed for 48-hour intervals once per week from early June until mid-July 2010. Collected invertebrates were counted and identified to class (all invertebrates), order or family (for some of the most common families collected).

openCC (other)Oct 2017View details →

Abundance and biomass of major taxonomic groups of arthropods collected with pitfall and vacuum sampling in Arctic LTER plots fertilized for 24 years near Toolik Field Station, Alaska in the summer of 2013.

Arthropods (spiders and insects) were collected three times during the 2013 summer using pitfall traps and vacuum sampling in plots fertilized with Nitrogen and Phosphorus for 24 years, and in control plots, in an experiment established near Toolik Field Station, Alaska. Pitfall traps were placed for 48-hour intervals; vacuum samples were taken in a 1m2 area. Collected invertebrates were counted and identified to order or family.

openCC (other)Jul 2018View details →

Arthropod pitfall trap biomass captured (weekly) and pitfall biomass model predictions (daily) near Toolik Field Station, Alaska, summers 2012-2016.

This data set contains information about the per pitfall trap arthropod biomass captured (or modeled using GAM modelling approaches) near Toolik Field Station from 2012 to 2016 under National Science Foundation (NSF) Office of Polar Programs ARC 0908444 (to Laura Gough), ARC 0908602 (to Natalie Boelman), and ARC 0909133 (to John Wingfield). It is associated with publication DOI: 10.1111/jav.01712.

openCC0Aug 2022View details →

Vegetation influences desert soil arthropods and their response to altered precipitation

Altered size and frequency of precipitation pulses will influence both plant and soil communities in water-limited systems such as the Sonoran Desert. Little is known about the response of desert soil fauna communities, particularly the mesofauna that are important components of the detrital food web. Further, while there is a well-documented impact of vegetation on soil fauna communities, the role of vegetation in buffering the soil community against such environmental changes is unclear. We conducted a short-term field study to (1) assess how the amount and frequency of monsoon season precipitation pulses influence soil arthropod communities and (2) explore the role of plant-soil linkages in the response of soil arthropod communities to altered precipitation. We experimentally altered the size (ambient and 50% increase) and frequency (ambient and 2X reduced frequency) of monsoon season precipitation for two dominant shrubs representing distinctly different functional types, as well as interplant spaces. We measured the resulting soil arthropod abundance, diversity, and composition, as well as key soil properties to characterize the soil habitat beneath each vegetation type.

openCC (other)Sep 2023View details →

Arthropod communities in the Second College Grant, NH

Arthropods are active during the winter in temperate regions. Many use the seasonal snowpack as a buffer against harsh ambient conditions and remain active in a refugium known as the subnivium. While the use of the subnivium by insects and other arthropods is well-established, far less is known about winter community composition, abundance, biomass, and diversity and how these characteristics compare with the community in the summer. Understanding subnivean communities is especially important given observed and anticipated changes in snowpack depth and duration with changing climate. We studied winter and summer insects and other arthropods using pitfall trapping in northern New Hampshire, where snowpack is still relatively intact. We found that compositions of the subnivium and summer arthropod communities differed. The subnivium arthropod community featured moderate levels of richness and other measures of diversity that tended to be lower than in the summer community. More striking, the subnivium community was much lower in overall abundance and biomass than the summer community. Interestingly, some groups and species of arthropods were dominant in the subnivium but either rare or absent in summer collections. These putative “subnivium specialists” included one spider (order: Araneae), Cicurina brevis (Emerton, 1890), and three rove beetles (order: Coleoptera, family: Staphylinidae) Arpedium cribratum Fauvel, 1878, Lesteva pallipes LeConte, 1863, and Porrhodites inflatus (Hatch, 1957). This study provides a detailed account of the subnivium arthropod community, presents novel concepts, and establishes baseline information on arthropod communities in the North American northeastern temperate forest.

openCC (other)Apr 2023View details →

Canopy opening increased leaf shredding arthropods and nutrient mineralization but not mass loss in a wet tropical forest

Canopy opening increased leaf shredding arthropods and nutrient mineralization but not mass loss in a wet tropical forest Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.

openOpenJan 2020View details →

Ground Arthropod Community Survey in Grassland, Shrubland, and Woodland at the Sevilleta National Wildlife Refuge, New Mexico (1992-2004)

This data set contains records for the numbers of selected groups of ground-dwelling arthropod species and individuals collected from pitfall traps at 4 sites on the Sevilleta NWR, including creotostebush shrubland, both black and blue grama grasslands, and a pinyon/juniper woodland. Data collections begin in May of 1989, and are represented by subsequent sample collections every 2 months. One site (Goat Draw/Cerro Montosa) was discontinued in 2001, and a new site (Blue Grama) was initiated . Only three sites, creosotebush, black grama, and blue grama were continued between 2001-2004.

FIG. 10 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris

FIG. 10. — Elder ungulatus (Münster, 1839). Specimen MNHN.F.A33549 under UV light. Scale bar: 1 cm. Photograph: L. Cazes.

FIG. 7 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris

FIG. 7. — Other Erymoidea from the Late Jurassic Solnhofen Lithographic Limestones (Bavaria, Germany): A-C, specimen MNHN.GG.2004/8245 of Palaeastacus fuciformis (Schlotheim, 1822) from Solnhofen: specimen in natural light (A), specimen in UV light (B) and line drawing (C); D, specimen MNHN.F.B13445 of Pustulina minuta (Schlotheim, 1822) from Solnhofen in UV light. Abbreviations: a1, antennule; a2, antenna; e, eye; Mxp3, third maxillipeds; P1-P5, periopods 1 to 5. Scale bars: A-C, 1 cm; D, 0.5 cm. Photographs: L. Cazes. Line drawing: J. Devillez.

FIG. 8 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris

FIG. 8. — Mecochirus longimanatus (Schlotheim, 1820): A, B, specimen MNHN.F.A33537; A, specimen in natural light; B, specimen in UV light; C, specimen MNHN.F.B13457; D-F, specimen MNHN.F.A70929; D, general view in UV light; E, view of the carapace in natural light; F, line drawing of the carapace; G, H, specimen MNHN.F.A33539; G, specimen in natural light; H, specimen in UV light. Abbreviations: ac, antennal carina; e1e, cervical groove; gc, gastro-orbital carina; oc, orbital carina. Scale bars: 1 cm. Photographs: L. Cazes. Line drawing: G.P. Odin.

FIG. 4 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris

FIG. 4. — Antrimpos undenarius Münster, 1839 from Nusplingen, housed at the MNHN: A, picture of the old label; B, C, specimen MNHN.F.A49615; B, natural light picture; C, line-drawing of the grooves; D, specimen MNHN.F.A49610; E, specimen MNHN.F.A49622; F, G, specimen MNHN.F.A49608; F, UV picture; G, line-drawing of the rostrum; H, specimen MNHN.F.A49624. Abbreviations: b, antennal groove; b1, hepatic groove; ct, cephalothorax; e1e, cervical groove; hs, hepatic spine; r, rostrum; rs, rostral spines; s1-s5, pleonal somites; ss, supraorbital spine. Scale bars: B-F, H, 1 cm; G, 2 cm. Photographs: L. Cazes (except A: G. P. Odin). Line drawing: G. P. Odin.

FIG. 5 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris

FIG. 5. — Antrimpos undenarius Münster, 1839 from Nusplingen, housed at the SMNS: A, specimen SMNS 80480; B, specimen SMNS 80481; C, specimen SMNS 80482; D, specimen SMNS 80483; E, specimen SMNS 24228; F, specimen SMNS 66122. Scale bars: A-F, 2 cm. Photographs: G. Schweigert.