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322 results for “Southeastern United States”
Spatiotemporal patterns of forest pollinator diversity across the southeastern United States
<p>Efforts to understand how pollinating insect diversity is distributed across large geographic areas are rare despite the importance of such work for conserving regional diversity. We sought to relate the diversity of bees (Hymenoptera: Apoidea), hoverflies (Diptera: Syrphidae), and butterflies (Lepidoptera) to the ecoregion, landscape context, canopy openness, and forest composition across southeastern U.S. forests.<strong> </strong>We established 5-7 plots in each experimental forest. In each, we sampled pollinators monthly (March-September) using colored pan traps, and collected data on local forest characteristics. We used the National Land Cover Database (NLCD) to quantify surrounding land cover at different spatial scales. Bee richness was negatively correlated with both the amount of conifer forest and the extent of wetlands in the surrounding landscape but was positively correlated with canopy openness. Hoverflies and butterflies were less sensitive to landscape context and stand conditions. Pollinator communities differed considerably among ecoregions, with those of the Central Appalachian and Coastal Plain ecoregions being particularly distinct. Bee richness and abundance peaked two months earlier in Central Appalachia than in the Coastal Plain and Southeastern Mixed Forest ecoregions. Our findings reveal ecoregional differences in pollinator communities across the southeastern U.S. and highlight the importance of landscape context and local forest conditions to this diverse fauna. The closed broadleaf forests of Appalachia and the open conifer-dominated forests of the Coastal Plain support particularly distinct pollinator communities with contrasting seasonality. Our results suggest pine forests may reduce pollinator diversity in regions historically dominated by broadleaf forests. However, efforts to create more open canopies can help improve conditions for pollinators in planted pine forests. Research exploring associations between forest pollinators and different broadleaf tree taxa is needed to better anticipate how they will be impacted by various management activities.</p>
FIGURE 3 in Undocumented beetle diversity in the Southeastern United States: a case study of the minute clubbed beetles (Coleoptera: Monotomidae)
FIGURE 3. Distribution and occurrence map of Monotoma species in Georgia. A) Map of Georgia. Purple shaded area = distribution of Monotoma producta. Other species that did not have many points are either widespread in the state (e.g. M. longicollis) or have too few points to make an accurate distribution map. B) Zoom-in on Athens-Clarke County. C) Zoom-in on University of Georgia and surrounding residential areas. Expanded spiral of points indicates records from a single GPS locality, showing the effects of prolonged sampling in a single location.
FIGURE 2 in Undocumented beetle diversity in the Southeastern United States: a case study of the minute clubbed beetles (Coleoptera: Monotomidae)
FIGURE 2. Dorsal habitus images of Monotoma occuring in Georgia. A) M. americana, B) M. arida, C) M. bicolor, D) M. emarginata, E) M. johnsoni, F) M. longicollis, G) M. picipes, H) M. producta.
FIGURE 5 in Undocumented beetle diversity in the Southeastern United States: a case study of the minute clubbed beetles (Coleoptera: Monotomidae)
FIGURE 5. Dorsal habitus images and occurrence map of Europs, Hesperobaenus, and Pycnotomina in Georgia and surrounding states. A) E. pallipennis, dorsal habitus. B) H. rufipes, dorsal habitus. C) P. cavicolle, dorsal habitus. D) Distribution map of above species. E. pallipennis and H. rufipes are widespread over the area shown, and are not shaded.
FIGURE 1 in Undocumented beetle diversity in the Southeastern United States: a case study of the minute clubbed beetles (Coleoptera: Monotomidae)
FIGURE 1. Dorsal habitus images and occurrence map of Rhizophagus in Georgia. A) R. brunneus brunneus, dorsal habitus. B) R. cylindricus (male), dorsal habitus. C) R. sayi, dorsal habitus. D) Distribution map of three species of Rhizophagus known to occur in Georgia. R. sayi is widespread over the area shown, and is not shaded.
FIGURE 4 in Undocumented beetle diversity in the Southeastern United States: a case study of the minute clubbed beetles (Coleoptera: Monotomidae)
FIGURE 4. Dorsal habitus images and occurrence map of Bactridium in Georgia. A) Bactridium ephippigerum, dorsal habitus. B) B. striolatum, dorsal habitus. C) Bactridium n. sp., dorsal habitus. D) Distribution map of three species of Bactridium known to occur in Georgia. B. ephippigerum and B. striolatum are widespread over the area shown, and are not shaded.
FIGURE 5 in Lacunicambarus dalyae: a new species of burrowing crayfish (Decapoda Cambaridae) from the southeastern United States
FIGURE 5. Range map of Lacunicambarus dalyae sp. nov. based on examined specimens. Localities for historical museum specimens lacking GPS coordinates estimated given available information. Green dots indicate sampling site and the orange star denotes the type locality of the species.
FIGURE 6 in Lacunicambarus dalyae: a new species of burrowing crayfish (Decapoda Cambaridae) from the southeastern United States
FIGURE 6. Mesial and lateral views of Form I (top row) and Form II (bottom row) gonopods of L. dalyae sp. nov., L. polychromatus, and L. thomai. Abbreviations: ck, caudal knob; cp, central projection; FI, Form I; FII, Form II, mp, mesial process; u, umbo.
FIGURE 3 in Lacunicambarus dalyae: a new species of burrowing crayfish (Decapoda Cambaridae) from the southeastern United States
FIGURE 3. Dorsal view of female specimen of Lacunicambarus dalyae sp. nov. from Humphreys County, Tennessee demonstrating color variation present in the species.
FIG. 12 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 12. Oscillograms (first and second columns), spectrograms (third column), and power spectra (fourth column) of advertisement calls from (A) P. collinsorum (recorded at 10.28C) and (B) P. brachyphona (recorded at 12.68C). The second columns represent a single call extracted from those in the first column. In the case of P. collinsorum (A), two males were recorded while duetting and are identified with numbers.
FIG. 11 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 11. Live specimens of P. collinsorum (left, photo by EML) from Lawrence County, Alabama and P. brachyphona (right, photo by Suzanne Collins) from Harrison County, West Virginia. Specimens of P. collinsorum often lack a distinct dorsal coloration pattern. For a color version of this figure, please refer to the online version of this article.
FIG. 7 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 7. Response curves of variables with highest contribution (.10%) to the Northern (black line, dark gray shadow) and Southern (gray line, light gray shadow) clade SDMs. The solid lines represent average probability of occurrence based on ten model replicates, while shadowed areas equal to 6 standard deviation. The dotted line indicates a 50% occurrence probability, with environmental values above this threshold indicating suitable habitat. Each clade shows a peak of habitat suitability (.50% occurrence probability) at different values of each variable, suggesting ecological divergence.
FIG. 10 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 10. Dorsal and lateral views of type specimens of P. collinsorum (A– D) and P. brachyphona (E–H). (A–B) Male P. collinsorum from Hale County, Alabama (UF 190162). (C–D) Male P. collinsorum from Hale County, Alabama (UF 190167). (E–F) Female P. brachyphona from Preston County, West Virginia (NCSM 100109). (G–H) Male P. brachyphona from Preston County, West Virginia (NCSM 100110). Black bars equal to 1 cm. For a color version of this figure, please refer to the online version of this article.
FIG. 9 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 9. Differences in pulse rate (PR), number (PN), and dominant frequency peak (DFP) in acoustic signals recorded in P. brachyphona from Tennessee (TN) and Alabama (AL). Locality-specific distributions of PR, PN, and DFP (A–C). The thick bar in these boxplots represents mean value. Lower and upper edges of each box are 25th and 75th quantile, respectively, and lower and upper whiskers represent the minimum and maximum limits of the interquartile range. Outliers are represented as hollow points. Randomization tests (1,000 reps) were performed for each of these variables (D–E), yielding significant differences for PR and DFP between Tennessee and Alabama, but not for PN.
FIG. 5 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 5. Principal component analysis plot based on residuals from regressions of each morphometric variable against snout–vent length. Abbreviations for the labels on the PC loadings (arrows) are the same as in the text (see Materials and Methods). Convex hulls are shown for each clade.
FIG. 3 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 3. Genetic clustering based on 21,702 SNPs from AHE loci for P. brachyphona. (A) The Structure plot shows two genetic clusters: Northern (n ¼ 17, green) and Southern (n ¼ 16, blue) as observed in the map (B). The pie charts correspond to the proportion of admixture as estimated in Structure. A blue arrow marks the samples from Hale County, Alabama. Two individuals assigned to the Northern cluster showed introgression from P. feriarum (''out,'' gray). (C) The discriminant analysis of principal components (DAPC) required one discriminant function to explain 67.4% of the genetic variance. Lines at the bottom of the distributions represent one individual. The DAPC also shows two clusters in agreement with the Northern and Southern clusters from Structure. The location of the Tennessee River is shown.
FIG. 4 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 4. Matrix correlation between pairwise genetic (Nei's) and geographic distances among individuals of P. brachyphona, after exclusion of hybrid individuals. (A) Mantel correlation test for all P. brachyphona showed significant correlation (r). The two clusters of points represent comparisons within and between genetic clusters (Northern and Southern). (B) Significant correlations were also observed for each cluster separately (Northern ¼ black, Southern ¼ gray).
FIG. 2. Species tree for P in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 2. Species tree for P. brachyphona as estimated in ASTRAL. Numbers on the branches are local posterior probabilities/boostrap support values from RAxML (A). The identifiers are field numbers, followed by the ''I'' number (DNA sample identifier, see Table 1). State abbreviation and county where the sample was collected are also shown. The tree shows two well-supported clades, corresponding to P. brachyphona from the Northern and Southern distribution ranges, respectively. Pseudacris brimleyi and P. feriarum were included as outgroups. Branch lengths (B) are shown in the inset tree generated with RAxML.
FIG. 1 in Hidden Diversity in the Mountain Chorus Frog (Pseudacris brachyphona) and the Diagnosis of a New Species of Chorus Frog in the Southeastern United States
FIG. 1. Samples of the Mountain Chorus Frog collected for this study and used in genetic analyses. Frogs were collected at several locations (solid dots) throughout the Appalachian Mountains in Eastern U.S. As outgroups, specimens of P. brimleyi and P. feriarum (solid and hollow triangles, respectively) were collect- ed.
Fig. 3 in First Records of the Palearctic Species Trechus obtusus Erichson from the Appalachian Region of the Southeastern United States (Coleoptera: Carabidae: Trechinae: Trechini)
Fig. 3. One of two equally parsimonious trees from maximum parsimony analysis of the COI barcoding region in PAUP*, with Nearctic and Palearctic individuals of Trechus obtusus indicated. Bootstrap values over 50 are shown. Outgroups not shown.
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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
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