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43 results for “shrub association”
Observational study of post-fire mycorrhizal communities associated with resprouting Betula nana shrubs across a fire-severity gradient in the Anaktuvuk River Fire burn scar, 2009
The dataset contains fungal community data from a sampling campaign in 2009, two growing seasons after the Anaktuvuk River Fire. We used molecular tools, including ARISA and fungal ITS sequencing, to characterize the mycorrhizal communities on resprouting Betula nana shrubs across a fire-severity gradient. Summarized data can be viewed by site and provide information on richness and abundance of basidiomycetes and ascomycetes andChao1 and MaoTau estimators of richness.
Operational taxonomic units characterizing fungal communitties associated with resprouting Betula nana shrubs sampled across a fire-severity gradient in the Anaktuvuk River Fire burn scar, 2010
The dataset contains fungal community data from a sampling campaign in 2009, two growing seasons after the Anaktuvuk River Fire. We used molecular tools, including ARISA and fungal ITS sequencing, to characterize the mycorrhizal communities on resprouting Betula nana shrubs across a fire-severity gradient. Summarized data can be viewed by site and provide information on richness and abundance of basidiomycetes and ascomycetes andChao1 and MaoTau estimators of richness. OTU data are provided for each shrub sampled in the study.
Fungal community structure associated with seedlings that established post-fire and adjacent resprouting shrubs at Finger Mountain and Nome Creek, Alaska
This dataset contains characterizations of fungal community structure associated with seedlings that established after fire and adjacent resprouting shrubs. It also includes variables that describe proximity to the closest resprouting shrub, fire severity, vegetation, and substrate associated with seedlings and adjacent resprouting shrubs harvested at Finger Mountain and Nome Creek in 2009.
ARISA profiles for root-associated fungal communities associated with seedlings that established after fire and adjacent shrubs harvested at Finger Mountain and Nome Creek in 2009
This dataset contains the ARISA profiles of the root-associated fungal communities associated with seedlings that established after the 2004 fires and the closest resprouting shrub.
Carbon/Nitrogen Status Including Protease Activities of Arctic Soils Associated with Shrubs of Varying Height around Toolik Field Station, Alaska 2009.
Organic and mineral soil cores were collected from 18 transects differentiated by shrub height into three replica groups: high (average 64 cm ± SE 1.01); medium (39 ± SE 1); and low (18 ± SE 0.4); and percent plant functional group cover. Replica sample cores were taken from each transect, and after homogenization and K2SO4 extraction, if required, samples were analyzed for % C (carbon) and N (nitrogen); non-purgeable organic C (NPOC); total N (TN); dissolved inorganic and organic N (DIN, DON); microbial biomass C (MB-C) and N (MB-N). As a measure of N status, protease activity (native and potential) was determined together with total free amino acids and total soluble protein. Bulk density and pH values were also measured. K2SO4 extracted samples from a three-month incubation were analyzed as above and net mineralization was assessed.
Fungal community structure associated with experimentally outplanted white spruce seedlings and the closest Salix and Betula nana shrubs, Toolik Lake, AK.
This dataset contains characterizations of fungal community structure associated with experimentally outplanted seedlings and adjacent naturally established resprouting shrubs.
Data from: Does warming by open-top chambers induce change in the root-associated fungal community of the arctic dwarf shrub Cassiope tetragona (Ericaceae)?
Climate change may alter mycorrhizal communities, which impact ecosystem characteristics such as carbon sequestration processes. These impacts occur at a greater magnitude in Arctic ecosystems, where the climate is warming faster than in lower latitudes. Cassiope tetragona (L.) D. Don is an Arctic plant species in the Ericaceae family with a circumpolar range. C. tetragona has been reported to form ericoid mycorrhizal (ErM) as well as ectomycorrhizal (ECM) symbioses. In this study, the fungal taxa present within roots of C. tetragona plants collected from Svalbard were investigated using DNA metabarcoding. In light of ongoing climate change in the Arctic, the effects of artificial warming by open-top chambers (OTCs) on the fungal root community of C. tetragona were evaluated. We detected only a weak effect of warming by OTCs on the root-associated fungal communities that was masked by the spatial variation between sampling sites. The root fungal community of C. tetragona was dominated by fungal groups in the Basidiomycota traditionally classified as either saprotrophic or ECM symbionts, including the orders Sebacinales and Agaricales and the genera Clavaria, Cortinarius, and Mycena. Only a minor proportion of the operational taxonomic units (OTUs) could be annotated as ErM-forming fungi. This indicates that C. tetragona may be forming mycorrhizal symbioses with typically ECM-forming fungi, although no characteristic ECM root tips were observed. Previous studies have indicated that some saprophytic fungi may also be involved in biotrophic associations, but whether the saprotrophic fungi in the roots of C. tetragona are involved in biotrophic associations remains unclear. The need for more experimental and microscopy-based studies to reveal the nature of the fungal associations in C. tetragona roots is emphasized.
Data from: Does warming by open-top chambers induce change in the root-associated fungal community of the arctic dwarf shrub Cassiope tetragona (Ericaceae)?
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Data from: Grazing-induced enhancement of shrub 'multifunctional island' effect is associated with altered soil bacterial β diversity in shrub-encroached grasslands
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Data from: Microscale trait-environment associations in two closely-related South African shrubs
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Data from: Interspecific association and environmental interpretation of dominant species in shrub layer of Pinus massoniana community on Chinese islands
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Data from: Divergence of Arctic shrub growth associated with sea ice decline
<p><span>Arctic sea ice extent (SIE) is declining at an accelerating rate with a wide range of ecological consequences. However, determining sea ice effects on tundra vegetation remains a challenge. In this study, we examined the universality or lack thereof in tundra shrub growth responses to changes in SIE and summer climate across the Pan-Arctic, taking advantage of 23 tundra shrub-ring chronologies from 19 widely distributed sites (56⁰-83⁰N). </span></p>
Data from: Ecological and spatial patterns associated with diversification of the shrub genus Tetraglochin along Southern-Central Andes (Rosaceae)
In addition to the degree of geographical isolation (sympatry, parapatry, allopatry and peripatry), ecology can be an important factor promoting diversification of lineages, both by niche divergence as well as niche conservatism. Tetraglochin is a genus of shrubs with six species distributed along the Southern and Central Andes, from Peru to southern Argentina and central Chile. Although monophyly of the genus as the identity of its species are well established, spatiotemporal framework for its diversification and the potential role of the ecology and geography in the speciation process remain unknown. In the present study we analyzed diversification times and historical biogeography of the genus, and conducted different climatic niche and geographical range comparisons among its species to determine possible patterns associated with speciation. Results support the Pleistocene diversification, early along the Southern Andes and the Patagonian Steppe and subsequently in the Central Andes. Climatic niche divergence did not prove to be a major factor promoting speciation, but rather the phylogenetic niche conservatism. Our analyses also favored the sympatric model of speciation, although patterns from geographical range evolution are difficult to interpret due to the lability on the ancestral distributions, and therefore micro-allopatric or parapatric divergence associated with the glacial-interglacial cycles and climatic oscillations throughout the Quaternary should not be discarded. Other potential factors associated with diversification of Tetraglochin are also discussed.
Fig. 1. Freshwater interdunal swale showing herbaceous vegetation amid dense Myrica- Baccharis shrubs. A in Rediscovery and Habitat Associations of Photuris Bethaniensis McDermott (Coleoptera: Lampyridae)
Fig. 1. Freshwater interdunal swale showing herbaceous vegetation amid dense Myrica- Baccharis shrubs. A large colony of P. bethaniensis was reported from this swale during 1951 and relocated during 1998.
FIGURE 18a–f in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 18a–f. Distribution maps of leafhopper species of Discolopeus gen.n. and associated plants. a. Galenia africana; b. D. diacaenus sp.n.; c. Diospyros austro-africana; d. Diospyros ramulosa; e. Potential natural distribution of D. arctus sp.n.; f. Antizoma miersiana in north western South Africa and southern Namibia.
FIGURE 15a–i. Discolopeus gen.n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 15a–i. Discolopeus gen.n. species, habitus, D. triacaenus sp.n. a. Holotype, male; b. Paratype, male, Ladismith; c, d, e. Nietgenaamd, female; dorsally, laterally and face, respectively; f. Ladismith, female; D. tetracaenus sp.n.; g. Beaufort West, male; h. Rust en Vrede, Oudtshoorn, male; i. Holotype, male, Willowmore.
FIGURE 11a–h. Discolopeus thigmacaenus n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 11a–h. Discolopeus thigmacaenus n.gen. & sp., male and female genitalia, line drawing. a. Genital capsule, dorsally; b. Genital capsule, laterally; c. Subgenital plate, ventrally; d, e. Aedeagus, laterally and dorsally respectively; f. Style, dorsally; g. Connective; h. Sternite VII.
FIGURE 4a–i. Discolopeus colopeus n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 4a–i. Discolopeus colopeus n.gen. & sp., male and female genitalia, line drawing. a. Genital capsule, dorsally; b. Genital capsule, laterally; c. Subgenital plate, ventrally; d. Tergite X, recess for aedeagal process, ventrally; e. Aedeagus, style and connective, dorsally; f. Aedeagus, laterally; g. Apex, aedeagal paraphysis, laterally; h. Connective, dorsally; i. Sternite VII.
FIGURE 20a–g in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 20a–g. Cladograms from parsimony, Bayesian inference and maximum likelihood analyses of morphology of Discolopeus new genus with nine new species. a. TNT, bootstrap above, jackknife below node bar; b. PAUP, bootstrap above, jackknife below node bar; c. Mr Bayes; d. RAxML. Parsimony analysis of Endemicity with TNT; e. biomes; f. climate; g. north, south, east, west and central areas of South Africa.
FIGURE 7a–m. Discolopeus arctus n in A new leafhopper genus Discolopeus and nine new species (Hemiptera, Cicadellidae, Deltocephalinae) associated with shrubs, trees and poisonous plants in South Africa
FIGURE 7a–m. Discolopeus arctus n. gen. & sp., male and female genitalia, line drawing. a. Genital capsule, dorsally; b. Genital capsule, laterally; c. Subgenital plate, ventrally; d, e, f. Aedeagus, laterally, dorsally and ventrally respectively; g, h. Style, dorsally and laterally respectively; i. Connective, dorsally; j. Sternite VII; k, l. Valvifers 1, laterally, Clanwilliam and Nieuwoudtville respectively; m, profemur chaetotaxy.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.