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102 results for “tree islands”
Bald cypress radiocarbon and dendrochronological data from trees located in the Altamaha Wildlife Management Area and on Sapelo Island, Georgia, USA
Ancient bald cypress trees buried under anoxic mud on the Altamaha Wildlife Management Area islands were sampled, prepared, radiocarbon dated, and the ringwidths measured for crossdating. Modern bald cypress samples were also obtained from Sapelo Island. Tree rings were measured using a Velmex and Measure J2X software and/or the ObjectJ extension of ImageJ. Measured radii were crossdated using visual dendrochronological methods and Cofecha software. Tree rings anchored to the present date back to 3161 B.C.E. and extend to 2016 C.E. In addition, the oldest two trees provide another 529 years of ringwidth data. This work was conducted under the National Science Foundation Doctoral Dissertation Improvement Award: Human Adaptation to Long Term Environmental Change (Award #1834682). All samples are part of the accessioned collections of the University of Georgia Laboratory's of Archaeology.
Witness Tree Data in Southern New England and Long Island 1640-1999
Early surveyors' witness-tree records from initial land divisions are often used to reconstruct the vegetation at the time of European settlement and before extensive Euro-American land use. The following description of methods comes from the published paper (Hall, B., G .Motzkin, D. R. Foster, M. Syfert and J. Burk. 2002. Three hundred years of forest and land-use change in Massachusetts, USA. Journal of Biogeography 29, 1319-1335): "Following methods described more fully in Cogbill et al. (2002), we used early surveyors' tree records from initial land divisions in each town to reconstruct the vegetation at the time of European settlement and before extensive Euro-American land use. All available original 17th - early 19th century survey records located at the state archives and individual town halls were examined and colloquial or common names of marker trees were noted... With few exceptions, only surveys that occurred within 80 years of town settlement were gathered in order to limit the potential influence of European land use on species composition."
Water flow velocity data, Shark River Slough (SRS) near Chekika tree island, Everglades National Park (FCE LTER) from January 2006 to March 2021
Water velocity data measured every 5 or 15 minutes in Shark River Slough beside Chekika tree island, Everglades National Park, using Sontek Agronaut water flow sampler. Data collection is complete.
Parramore Island of the Virginia Coast Reserve Permanent Plot Resurvey: Tree notes 1996
First 3-5 year resurvey of permanent monitoring plots using essentially the same protocol as the intial survey of 1992-1993 except that: 1.) standing biomass of the herbaceous groundcover was added (including for new lower salt marsh plots) using clip plots at the subplot locations; and 2.) an estimate of landcover/habitat class aggregation was conducted surrounding each plot center out to 60m in the four cardinal directions. Extends baseline data useful for estimating landscape-scale vegetative productivity, mortality, and turnover; for establishing pre-disturbance conditions in the case of later stand- or island-wide disturbance; and for assisting in the ground-truthing of landcover and habitat classification using aerial or satellite remote-sensing imagry.
Parramore Island of the Virginia Coast Reserve Permanent Plot Resurvey: Tree data 1997
This dataset includes both the original 1993 and the resurveyed 1996 data. It includes a number of corrections to the original data, and as such it SUPPLANTS and should be used in place of the older "VCR97011 : Tree Data" dataset.
Figure 1 in A New Species of Metaprotella (Crustacea: Amphipoda: Caprellidae) from One Tree Island, Southern Great Barrier Reef, Queensland, Australia
Figure 1. Metaprotella lowryi sp. nov., holotype male, 7.08 mm, AM P.100147, and paratype female, 6.02 mm, AM P.100149, One Tree Island, Great Barrier Reef, Queensland, Australia, 23°29'05"S 152°04'07"E. Scale 1.0 mm.
Figure 2 in A New Species of Metaprotella (Crustacea: Amphipoda: Caprellidae) from One Tree Island, Southern Great Barrier Reef, Queensland, Australia
Figure 2. Metaprotella lowryi sp. nov., holotype male, 7.08 mm, AM P.100147, One Tree Island, southern Great Barrier Reef, Queensland, Australia, 23°29'05"S 152°04'07"E. L, left; LL, lower lip; MD, mandible; MX, maxilla, MXP, maxilliped; R, right, and UL, upper lip. Scale = 0.05 mm.
Figure 3 in A New Species of Metaprotella (Crustacea: Amphipoda: Caprellidae) from One Tree Island, Southern Great Barrier Reef, Queensland, Australia
Figure 3. Metaprotella lowryi sp. nov.: One Tree Island, southern Great Barrier Reef, Queensland, Australia, 23°29'05"S 152°04'07"E: A2, G1, G2 (M), P3–P7, holotype male, 7.08 mm, AM P.100147; G2 (M*), AB, paratype male, 8.59 mm, AM P.100148; G2 (F), paratype female, 6.02 mm, AM P.100149. A2, antenna 2; AB, abdomen; F, female; G1, gnathopod 1; G2, gnathopod 2; M, male; P3–P7, pereopod 1 to pereopod 7, respectively. Scale: G1, P3, P4, and AB = 0.1 mm; 0.2 mm for all others.
Data from: Tree functional traits across Caribbean island dry forests are remarkably similar
<p>Delineation of potential dry forest and estimated actual dry forest on Caribbean islands. Potential dry forest is delineated based on CHELSA climate data (<a href="http://www.chelsa-climate.org/">www.chelsa-climate.org</a>) and the FAO definition of dry forest. Estimated actual dry forest is corrected for land cover using data from Hansen et al. (2022) <a href="https://doi.org/10.1088/1748-9326/ac46ec">https://doi.org/10.1088/1748-9326/ac46ec</a>. Areas of potential dry forest, estimated actual dry forest, and area of built-up land covers are summarized by islands and joined to CHELSA bioclimatic variables for selected islands where data on functional traits are available. Trait values by sites are also included. The package consists of data outputs and R scripts to reproduce the data outputs from identified publicly available data sources.</p>
Functional assembly of tropical montane tree islands in the Atlantic Forest is shaped by stress-tolerance, bamboo-presence and facilitation
<p><strong>Aims</strong>: Amidst the Campos de Altitude (Highland Grasslands) in the Brazilian Atlantic Forest, woody communities grow either clustered in tree islands or interspersed within the herbaceous matrix. The functional ecology, diversity and biotic processes shaping these plant communities are largely unstudied. We characterised the functional assembly and diversity of these tropical montane woody communities and investigated how they fit within Grime's CSR (C – competitor, S – stress-tolerant, R – ruderal) scheme, what functional trade-offs they exhibit and how traits and functional diversity vary in response to bamboo presence/absence.</p> <p><strong>Methods</strong>: To characterize the functional composition of the community, we sampled five leaf traits and wood density along transects covering the woody communities both inside tree islands and outside (i.e. isolated woody plants in the grasslands community) . Then, we used Mann Whitney test, t-test and variation partitioning to determine the effects of inside vs outside tree island and bamboo presence on community weighted means, woody species diversity and functional diversity.</p> <p><strong>Results</strong>: We found a general SC/S strategy with drought-related functional trade-offs. Woody plants in tree islands had more acquisitive traits than those within the grasslands. Trait variation was mostly taxonomically than spatially driven, and species composition varied between inside and outside tree islands. Leaf thickness, wood density and foliar water uptake were unrelated to CSR-strategies, suggesting independent trait dimensions and multiple drought-coping strategies within the predominant S-strategy. Islands with bamboo presence showed lower Simpson diversity, lower functional dispersion, lower foliar water uptake and greater leaf thickness than in tree islands without bamboo.</p> <p><strong>Conclusions</strong>: The observed functional assembly hints towards large-scale environmental abiotic filtering shaping stress-tolerant community strategy, and small-scale biotic interactions driving small-scale trait variation. We recommend experimental studies with fire, facilitation treatments, eco-physiological and recruitment traits to elucidate on tree island expansion and communities response to climate change.</p>
FIG. 6 in Three New Species of Musseromys (Muridae, Rodentia), the Endemic Philippine Tree Mouse from Luzon Island
FIG. 6. Cranium (in dorsal, ventral, and lateral views) and mandible of A, Musseromys gulantang, adult male (FMNH 178405, holotype); B, M. inopinatus, adult female (FMNH 193839, holotype); C, M. beneficus, adult female (FMNH 198714, holotype); and D, M. anacuao, adult female (FMNH 209522, holotype).
FIG. 2 in Three New Species of Musseromys (Muridae, Rodentia), the Endemic Philippine Tree Mouse from Luzon Island
FIG. 2. Projection of specimen scores onto the first two axes (A) and the second and third axes (B) of a principal components analysis (table 1) of 18 craniodental variables (log-10 transformed) from seven specimens representing four putative species of Musseromys.
FIG. 1 in Three New Species of Musseromys (Muridae, Rodentia), the Endemic Philippine Tree Mouse from Luzon Island
FIG. 1. Map of Luzon Island, Philippines, showing documented distributions of species and geographic features mentioned in the text, including the type localities of the four species of Musseromys.
FIG. 8. A, The tree resulting from a in Archboldomys (Muridae: Murinae) Reconsidered: A New Genus and Three New Species of Shrew Mice from Luzon Island, Philippines
FIG. 8. A, The tree resulting from a maximum-likelihood analysis of the IRBP data set under the best-fitting model (HKY + Γ4). Numbers at nodes indicate maximum-likelihood (above the line) or parsimony (below the line) bootstrap support. B, The tree resulting from a mixed-model maximum-likelihood analysis of the combined IRBP + cytochrome b data set. Numbers at nodes indicate maximum-likelihood bootstrap support (above the line) or posterior probabilities resulting from a mixed-model Bayesian analysis (below the line). Trees are rooted with Phloeomys cumingi and Batomys granti as outgroups (not shown).
Figure 273. The unique most parsimonious tree found with Pee-Wee with K in The genus Pholcus (Araneae, Pholcidae) in the Canary Islands
Figure 273. The unique most parsimonious tree found with Pee-Wee with K = 4 (L = 254, CI = 41, RI = 65) based on the COMPLETE matrix.
Figure 4. Bayesian Inference phylogenetic tree inferred from 1039 in Genetic Relationships of Long-nosed Potoroos Potorous tridactylus (Kerr, 1792) from the Bass Strait Islands, with Notes on the Subspecies Potorous tridactylus benormi Courtney, 1963
Figure 4. Bayesian Inference phylogenetic tree inferred from 1039 bp of concatenated CO1 and ND2 mitochondrial DNA sequence data. Posterior probabilities for major lineages are shown. A similar tree topology was also inferred from Maximum Likelihood.
Figure 3. Maximum Likelihood phylogenetic tree inferred from 695 in Genetic Relationships of Long-nosed Potoroos Potorous tridactylus (Kerr, 1792) from the Bass Strait Islands, with Notes on the Subspecies Potorous tridactylus benormi Courtney, 1963
Figure 3. Maximum Likelihood phylogenetic tree inferred from 695 bp of CO1 mtDNA sequence, including data from the Potorous tridactylus benormi Holotype (AM M.8319) and Paratype (AM M.8373). Bootstrap values for major lineages are shown. A similar tree topology was inferred from Bayesian inference.
Functional assembly of tropical montane tree islands in the Atlantic Forest is shaped by stress-tolerance, bamboo-presence and facilitation
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Data from: Tree functional traits across Caribbean island dry forests are remarkably similar
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Extended Lissamphibia: A tale of character non-independence, analytical parameters, and islands of trees
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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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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.