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16 results for “Terrestrial insects”
Aquatic and terrestrial insect activity phenology with trap collections at the Andrews Experimental Forest, 2009-2014
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 aquat
Рис. 2.Dociostaurus brevicollis (Eversmann, 1848) Fig. 2. Dociostaurus brevicollis (Eversmann, 1848) in Terrestrial Orthopteroid insects (Insecta, Orthopteroidea) of South-Eastern Belarus
Рис. 2.Dociostaurus brevicollis (Eversmann, 1848) Fig. 2. Dociostaurus brevicollis (Eversmann, 1848)
Linked collectors and determiners for: AM: Terrestrial Insect Collections (1896-2000).
Natural history specimen data linked to collectors and determiners held within, "AM: Terrestrial Insect Collections (1896-2000)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/56fe0b98-95e1-4544-b398-fa7cebf18598">https://bionomia.net/dataset/56fe0b98-95e1-4544-b398-fa7cebf18598</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/56fe0b98-95e1-4544-b398-fa7cebf18598">https://gbif.org/dataset/56fe0b98-95e1-4544-b398-fa7cebf18598</a>. Formatted as a Frictionless Data package.
Data and code for: Terrestrial eDNA survey outperforms conventional approach for detecting an invasive pest insect within an agricultural ecosystem
<p>Recent methodological advances permit surveys for terrestrial insects from the direct collection of environmental DNA (eDNA) deposited on vegetation or other surfaces. However, in contrast to well-studied aquatic applications, little is known about how detection rates for such terrestrial eDNA-based surveys compare with conventional survey methods. <i>Lycorma delicatula</i>, the spotted lanternfly, is an emerging invasive insect in eastern North America, and a significant ecological and economic pest of forested and agricultural systems, especially grapes. During fall 2019 we conducted two rounds of paired eDNA and visual surveys for spotted lanternflies within 48 plots at 12 vineyards in New Jersey, USA. We compared detection probabilities within a multimethod occupancy modeling framework and used the results to extrapolate and inform survey design. The probability of detecting spotted lanternflies given presence in a plot was over two times higher for eDNA (84%) versus visual surveys (36%). In mid-September, lanternfly eDNA was detected at five plots in three vineyards while visual surveys revealed only a single individual in one plot. In early October, after dispersal of lanternflies into vineyards, lanternfly eDNA was detected in 12 plots within six vineyards compared with visual detections in six plots in two vineyards. Extrapolations based on detection and local-scale occupancy rates indicate that only five and 12 plots would have been needed to positively detect lanternfly presence with 95% confidence using eDNA in contrast to 14 and 29 plots with visual surveys alone, respective to survey rounds. Log-linear models revealed that visual counts of lanternflies were positively related to eDNA concentrations (R<sup>2</sup> = 71%). We provide some of the first quantitative evidence to support the enhanced sensitivity of terrestrial eDNA approaches compared with conventional methods. Such methods can augment efforts to combat invasive species through improved ability to delimit invasion fronts, identify satellite populations, and confirm local eradications.</p>
Рис. 1. Leptophyes punctatissima (Bosc, 1792) Fig. 1. Leptophyes punctatissima (Bosc, 1792) in Terrestrial Orthopteroid insects (Insecta, Orthopteroidea) of South-Eastern Belarus
Рис. 1. Leptophyes punctatissima (Bosc, 1792) Fig. 1. Leptophyes punctatissima (Bosc, 1792)
Data from: Seasonal dynamics in terrestrial insect communities after the impact of the Brumadinho Tailings Dam Disaster
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Data and code for: Terrestrial eDNA survey outperforms conventional approach for detecting an invasive pest insect within an agricultural ecosystem
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30 years of terrestrial insect richness patterns across elevation: What have we learned? A global meta-analysis
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Fig. 2 in Long-term dynamics of microplastic accumulation in the intestinal tract of terrestrial insects on the example of Vespula vulgaris (Linnaeus, 1758) (Hymenoptera: Vespidae)
Fig. 2. Occurrence of different types of MPs inside wasps, %. Рис. 2. Встречаемость раЗнотипных частиц МП в осах, %.
Fig. 1 in Long-term dynamics of microplastic accumulation in the intestinal tract of terrestrial insects on the example of Vespula vulgaris (Linnaeus, 1758) (Hymenoptera: Vespidae)
Fig. 1. Box and whisker plot showing average content of MP particles inside wasps from natural populations sampled in the vicinity of the village of Kireevsk (five samples/year; Tomsk region, Russia). Рис. 1. Диаграмма, демонстрируюЩаЯ среднее содержание частиц МП в осах иЗ природных популЯций (5 выборок/год) в окрестностЯх с. Киреевск (ТомскаЯ область, РоссиЯ).
Data from: Artificial light at night may decrease predation risk for terrestrial insects
<p>Artificial light at night (ALAN) is thought to be detrimental for terrestrial insect populations. Whilst there exists evidence for lower abundance under ALAN, underlying mechanisms remain unclear. One mechanism by which ALAN may contribute to insect declines may be through facilitating increased predation. We investigated this by experimentally manipulating insect-substitute abundance under differential levels of light. We used insect-containing birdfeed placed at varying distances from streetlights as a proxy for terrestrial insects, inspecting the rate of predation before and after dusk (when streetlights are respectively off and on). We found that there was a significantly greater effect of increasing distance on predation after dusk, suggesting that predation was actually reduced by greater levels of artificial light. This may occur because ALAN also increases the vulnerability of insectivores to their own predators. Implications for foraging behaviour and alternative explanations are discussed.</p>
Data from: Artificial light at night may decrease predation risk for terrestrial insects
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Data from: Dissolved organic carbon modulates mercury concentrations in insect subsidies from streams to terrestrial consumers
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Data from: Reproductive workers show queen-like gene expression in an intermediately eusocial insect, the buff-tailed bumble bee Bombus terrestris
Bumble bees represent a taxon with an intermediate level of eusociality within Hymenoptera. The clear division of reproduction between a single founding queen and the largely sterile workers is characteristic for highly eusocial species, whereas the morphological similarity between the bumble bee queen and the workers is typical for more primitively eusocial hymenopterans. Also, unlike other highly eusocial hymenopterans, division of labour among worker subcastes is plastic and not predetermined by morphology or age. We conducted a differential expression analysis based on RNA-seq data from 11 combinations of developmental stage and caste to investigate how a single genome can produce the distinct castes of queens, workers and males in the buff-tailed bumble bee Bombus terrestris. Based on expression patterns, we found males to be the most distinct of all adult castes (2411 transcripts differentially expressed compared to nonreproductive workers). However, only relatively few transcripts were differentially expressed between males and workers during development (larvae: 71 and pupae: 162). This indicates the need for more distinct expression patterns to control behaviour and physiology in adults compared to those required to create different morphologies. Among female castes, reproductive workers and their nonreproductive sisters displayed differential expression in over ten times more transcripts compared to the differential expression found between reproductive workers and their mother queen. This suggests a strong shift towards a more queenlike behaviour and physiology when a worker becomes fertile. This contrasts with eusocial species where reproductive workers are more similar to nonreproductive workers than the queen.
Data from: Bottom-up vs. top-down effects on terrestrial insect herbivores: a meta-analysis
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Data from: Reproductive workers show queen-like gene expression in an intermediately eusocial insect, the buff-tailed bumble bee Bombus terrestris
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Allen Brain Atlas
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.