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40 results for “insect sampling”
Environmental, Taxonomic, and Stable Isotope Data from Aquatic Insects sampled from Beaver-Engineered Headwater Streams (Adirondack Park, NY; 2024).
This data package contains environmental and biological data from a field study examining aquatic insect assemblage composition and basal resource use in beaver-engineered headwater streams in Adirondack Park, New York. Data was collected from six streams across two watersheds; the Oswegatchie River Watershed and Upper Hudson River Watershed. Three streams were sampled within the Oswegatchie River Watershed; East Creek, Sucker Brook, and Chair Rock Creek located near the Cranberry Lake Biological Station in St. Lawrence County. Three streams were sampled from the Upper Hudson River Watershed; Big Sucker Brook, Little Sucker Brook, and Panther Brook located near SUNY ESF’s Newcomb Campus in Essex County. Site conditions were characterized using densiometer measurements of canopy cover, visual assessments of substrate composition, and river discharge measurements collected with an OTT MF Pro flow meter. Aquatic insect assemblages were sampled using multihabitat active sampling and Hester–Dendy and leaf-bag passive samplers, with specimens identified to genus and assigned to functional feeding groups. Carbon and nitrogen stable isotopes were analyzed for a subset of insect taxa and three basal resource pools; coarse particulate organic matter (CPOM), fine particulate organic matter (FPOM), and periphytic algae. The Bayesian mixing model MixSIAR was used to estimate the proportional contribution of these primary sources to aquatic insect biomass. All data was collected between June and August 2024.
Aquatic insect sampling in Lookout Creek at the H.J. Andrews Experimental Forest, 2001
The database contains data from samples collected during the summer of 2001 on aquatic macroinvertebrates along Lookout Creek. Three data tables comprise the database. The two larger tables contain the taxonomic composition and abundances from samples collected using small (0.25m2 ) emergence traps and pan traps (0.19m2). Taxonomic resolution differs by order; for some taxa we identified individuals to family, genus, and species, some to family and genus, and others to family only. A third small data table is a complete list of taxa from the three orders Ephemeroptera, Plecoptera, and Trichoptera.
Data: Flower visiting insects of kiwifruit within New Zealand commercial orchard blocks sampled over two years in the Bay of Plenty, New Zealand
<p>These data are total counts of individual bee and non–bee insects observed visiting the flowers of kiwifruit (<em>Actinidia chinensis</em> var.deliciosa) (‘Hayward’) vines in three commercial orchards located in the Bay of Plenty Region of New Zealand (37° 46' 56" S; 176° 19' 10" E). Each block was located on a different farm and each separated by a distance of at least two kilometres and surveyed twice in two consecutive years. A total of 1181 insects were observed, 741 in the 2014 season and 460 in the 2015 season. Insects from four orders were recorded. The most abundant species were honey bees <em>Apis mellifera</em> (n= 1068; 90.4%), flower longhorn beetles <em>Zorion guttigerum</em> (n= 52; 4.4%), the native bee <em>Lasioglossum</em> <em>sordidum</em>/c<em>ognatum</em> (n= 12; 1.0%) and the hover fly <em>Melanostoma fasciatum</em> (n= 11; 0.9%) Others insects represented 3.2% of individuals observed (n=38). We present a table of counts of the insects observed.</p>
Figure 1 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 1. Exemplars of the plant hosts analyzed in this study. (a) Taeniopteris from Mitchell Creek Flats, specimen USNM-612206. (b) Zeilleropteris from Mitchell Creek Flats, specimen USNM-612216. (c) Auritifolia waggoneri from Colwell Creek Pond, specimen USNM-559854. (d) Taeniopteris from Colwell Creek Pond, specimen USNM-559818. (e) Johniphyllum multinerve from South Ash Pasture, specimen USNM-520377. (f) Euparyphoselis gibsonii from South Ash Pasture, specimen USNM-520383.
Figure 4 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 4. Damage type (DT) diversity, the herbivory index (percentage of leaf area removed), and the proportion of specimens excluded, calculated with different specimen area restrictions, for the four primarily and secondarily dominant Permian plant hosts represented by fewer than 400 specimens. The dashed gray line represents the mean value calculated for the complete dataset, and the dotted gray lines represent the 95 % confidence intervals for the complete dataset. For the complete datasets, all specimens with a surface area above 0.5 cm2 were examined. The 95 % confidence interval for each subsampling routine is represented by a light gray rectangle bounded by black lines. The thick black lines represent the mean values for each subsampling routine.
Figure 7 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 7. Surface area of individual specimens ordered by area for the two forms of Johniphyllum multinerve at SAP.
Figure 3 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 3. Damage type (DT) diversity, the herbivory index (percentage of leaf area removed), and the proportion of specimens excluded, calculated with different specimen area restrictions, for the three primarily dominant Permian plant hosts represented by 400 or more specimens. The dashed gray line represents the mean value calculated for the complete dataset, and the dotted gray lines represent the 95 % confidence intervals for the complete dataset. For the complete datasets, all specimens with a surface area above 0.5 cm2 were examined. The 95 % confidence interval for each subsampling routine is represented by a light gray rectangle bounded by black lines. The thick black lines represent the mean values for each subsampling routine.
Figure 6 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 6. Surface area of individual specimens, ordered by area for each plant host, for Auritifolia waggoneri and Taeniopteris spp. of CCP and Johniphyllum multinerve at SAP.
Figure 8 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 8. The DT diversity and the herbivory index of each specimen, plotted against its surface area.
Figure 5 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 5. Sequential increases in sample size, starting with the largest specimens, for the three primarily dominant Permian plant hosts represented by 400 or more specimens.
Figure 2 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
Figure 2. Damage type (DT) diversity, the herbivory index (percentage of leaf area removed), and the proportion of specimens excluded, calculated with different subsampling routines for the three primarily dominant Permian plant hosts represented by 400 or more specimens. The dashed gray line represents the mean value calculated from the complete datasets, and the dotted gray lines represent the 95 % confidence intervals calculated from the complete datasets. For the complete datasets, all specimens with a surface area above 0.5 cm2 were examined. The 95 % confidence interval for each subsampling routine is represented by a light gray rectangle bounded by black lines. The thick black lines represent the mean values for each subsampling routine.
Fig. 1 in Potential of unmanned aerial sampling for monitoring insect populations in rice fields
Fig. 1. Rotary-wing unmanned aerial vehicle equipped with remote-controlled insect net openings (a). Layout of double-layered insect net designed to prevent loss of insect samples during aerial sampling (b). Representative flight path of unmanned aerial vehicle for aerial sampling over rice field (c).
Fig 1 in Is repeated cypermethrin fumigation dangerous for the mitochondrial DNA in dry insect samples?
Fig 1. Chemical structure of cypermethrin (C22H19Cl2NO3) which is the active insecticidal substance (6.25%) in commercial available smoke shells "Cytrol Super SG" (PelGar s.r.o./Agrochema družstvo Studenec, Czech Republic).
Fig 3 in Is repeated cypermethrin fumigation dangerous for the mitochondrial DNA in dry insect samples?
Fig 3. Quality of PCR products of all 128 samples used in this study (barcoding region of the cytochrome oxidase I) checked on the 1% agarose gel in the horizontal electrophoresis. A1–D1 – run I. A1 – Oxythyrea funesta (fumigated samples), B1 – O. funesta (negative control), C1 – Supella longipalpa (fumigated samples), D1 – S. longipalpa (negative control). A2–D2 – run II (same legend as in run I). L = DNA ladder, N = negative control for PCR, P = positive control for PCR. Numbers of samples are abbreviation of musem IDs (NMPC-GAS-00XX, XX = numbers used in this figure). Red number = weak or not working sample.
Fig. 2 in Scale Insect (Hemiptera, Coccomorpha) Survey Of Soil Samples From Southern Asia With Description Of Two New Species Of Rhizoecidae
Fig. 2. Ripersiella danyii Kaydan et Konczné Benedicty sp. n. adult female, holotype
Fig. 1 in Scale Insect (Hemiptera, Coccomorpha) Survey Of Soil Samples From Southern Asia With Description Of Two New Species Of Rhizoecidae
Fig. 1. Rhizoecus muranyii Kaydan sp. n. adult female, holotype
Multi-angle light scattering (MALS) analysis of HTT1-3144 Q54 HAP401-371 samples purified from Sf9 insect cells - 2018/12/03
<p><strong>Project: </strong>Biophysical investigation of purified HTT protein samples</p> <p><strong>Experiment: </strong>Multi-angle light scattering (MALS) analysis of HTT<sup>1-3144 </sup>Q54 HAP40<sup>1-371</sup>samples purified from Sf9 insect cells</p> <p><strong>Date completed:­ </strong>2018/12/03</p> <p><strong>Rationale: </strong>Apo HTT<sup>1-3144 </sup>Q23 and HTT<sup>1-3144 </sup>Q23 HAP40<sup>1-371</sup>complex samples have been analysed by MALS revealing HTT-HAP40 complex samples to be monodisperse. PolyQ expanded HTT constructs have been expressed as HAP40 complexes but the monodispersity has not been assessed beyond analytical gel filtration. </p>
Main Plots All Arthropod Insect Sweepnet Sampling 1996-200: Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
All Insect Savanna Sweepnet Sampling 2004:Trophic Structure: Insect Species Diversity, Abundance and Body Size
The goal of this study was to examine the populations of insects in prairies and savannas. Most of the prairies had developed after being abandoned from agriculture, but none of the savannas had been cultivated. The history of burning varied between sites. The main sampling for this study was conducted in 1992 by the lead investigators: John Haarstad, Evan Siemann, and David Tilman. Insects were sampled via sweep-net sampling, pitfalls and ant scent plates throughout the growing season in each of 49 grassland fields and savannas. In total, 89,596 individuals of 1,167 species were captured and enumerated. Body size was measured for a subset of grasshoppers collected. In 2004, John Haarstad conducted two similar studies by identifying and enumerating all insects collected in sweepnet samples taken in old fields (prairies) as part of E014 grasshopper studies and from sweepnet samples taken in savannas.
Old Field All Arthropod Sweepnet Sampling 2004 :Trophic Structure: Insect Species Diversity, Abundance and Body Size
The goal of this study was to examine the populations of insects in prairies and savannas. Most of the prairies had developed after being abandoned from agriculture, but none of the savannas had been cultivated. The history of burning varied between sites. The main sampling for this study was conducted in 1992 by the lead investigators: John Haarstad, Evan Siemann, and David Tilman. Insects were sampled via sweep-net sampling, pitfalls and ant scent plates throughout the growing season in each of 49 grassland fields and savannas. In total, 89,596 individuals of 1,167 species were captured and enumerated. Body size was measured for a subset of grasshoppers collected. In 2004, John Haarstad conducted two similar studies by identifying and enumerating all insects collected in sweepnet samples taken in old fields (prairies) as part of E014 grasshopper studies and from sweepnet samples taken in savannas.
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