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91 results for “dispersal events”
The genus Cycas may have diversified from Indochina and occupied its current ranges through vicariance and dispersal events
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Data from: Estimating the molecular evolutionary rates of mitochondrial genes referring to Quaternary Ice Age events with inferred population expansions and dispersals in Japanese Apodemus
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Data from: The role of temperature and dispersal in moss-microarthropod community assembly after a catastrophic event
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Data from: The interplay of dispersal limitation, rivers, and historical events shapes the genetic structure of an Amazonian frog
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Data from: Model-based analysis supports interglacial refugia over long-dispersal events in the diversification of two South American cactus species
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Parentage analyses identify local dispersal events and sibling aggregations in a natural population of Millepora hydrocorals, a free-spawning marine invertebrate
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Data from: Historical biogeography resolves the origins of endemic Arabian toad lineages (Anura: Bufonidae): evidence for ancient vicariance and dispersal events with the Horn of Africa and South Asia
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Bayesian morphological clock versus parsimony: An insight into the relationships and dispersal events of postvacuum Cricetidae (Rodentia, Mammalia)
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Data from: Multi-locus analysis of Pristionchus pacificus on La Réunion Island reveals an evolutionary history shaped by multiple introductions, constrained dispersal events, and rare out-crossing
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Fig. 25 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 25. Internal sac of Streblopus punctatus (Balthasar, 1938). A‒B. General aspect before dissection. C. Raspule. D. Apical and subapical sclerites. E. Superior right peripheral sclerite. Arrow indicates a triangular area of a more sclerotized tegument that is probably homologous to a similar triangular area on the SRP of S. opatroides van Lansberge, 1874. Abbreviations: A = axial sclerite; Rp = raspule; SA = subaxial sclerite; SRP = superior right peripheral sclerite; T = temones.
Fig. 27. Female genitalia. A‒C. Spermatheca. A. Streblopus opatroides van Lansberge, 1874. B‒C. S in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 27. Female genitalia. A‒C. Spermatheca. A. Streblopus opatroides van Lansberge, 1874. B‒C. S. punctatus (Balthasar, 1938) (slightly different views). Observe that the spermatheca of the latter species is more slender and has a unique pair of apical hooks (red arrow). D. General view of the entire female genitalia of S. punctatus.
Fig. 21. Wings. A‒E. Elytra. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 21. Wings. A‒E. Elytra. A. Lateral view of elytra of Streblopus opatroides van Lansberge, 1874. Note the very wide pseudepiplera and narrow epipleura. B‒C. Pseudepipleural carina (indicated by red arrows). B. S. opatroides. C. S. punctatus (Balthasar, 1938). Observe that the pseudepipleural carina in B is completely interrupted by umbilicate punctures, whereas the pseudepipleural carina in C is almost completely smooth, with very tiny and isolated punctures. D‒E. Lateral view of apex of elytra. D. S. opatroides. E. S. punctatus. Note how the distal calluses (shown by blue arrows) of S. punctatus are much more strongly projecting than those of S. opatroides. F. Right hind wing of Streblopus opatroides. Red arrow shows the notch of the anal fold. Abbreviations: AA = anal anterior; AP = anal posterior; Cu = cubitus; J = jugal; MP = media posterior; MPa = accessory MP; r4 = cross-vein r4 (cross-vein connecting veins RA3+4 and RP2); RA = radius anterior; RP = radius posterior; ScA = subcosta anterior.
Fig. 20. Posterior legs. A‒D. Metatibiae. A‒B. Streblopus opatroides van Lansberge, 1874. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 20. Posterior legs. A‒D. Metatibiae. A‒B. Streblopus opatroides van Lansberge, 1874. A. ♂. B. ♀. C‒D. S. punctatus (Balthasar, 1938). C. ♂. D. ♀. Note the strong sexual dimorphism and the many differences between the species. E‒F. Metatarsi and apex of metatibia of S. opatroides. E. ♂. F. ♀. Observe how much shorter the male metatibial spur is in comparison to that of the female.
Fig. 23. Genital capsule. A‒D. Streblopus opatroides van Lansberge, 1874. A. Dorsal view. B‒C in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 23. Genital capsule. A‒D. Streblopus opatroides van Lansberge, 1874. A. Dorsal view. B‒C. Lateral view from slightly different angles (red arrow shows the ventral surface and its keel). D. Ventral view. E‒H. S. punctatus. (Balthasar, 1938). E. Dorsal view. F‒G. Lateral view from slightly different angles (red arrow indicates ventral surface). H. Ventral view. Observe the differences in the shape of the parameres, in particular how the apical hook is much more prominent in S. punctatus.
Fig. 22 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 22. Abdomen of Streblopus opatroides van Lansberge, 1874. A‒B. Lateral view. A. ♂. B. ♀. Note that the female abdomen has a straighter surface than that of the male, which is concave (red arrow shows this concavity). C. Pygidium and prepygidium.
Fig. 28 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 28. Current distribution of Streblopus van Lansberge, 1874 plotted on a Middle Miocene palaeomap (~ 15 million years ago). Presently, both species of Streblopus are largely isolated from one another by means of the South America Dry Diagonal that separates the humid forests of the Amazon Basin from the Atlantic Forest on the South American eastern coast. This disjunct distribution is probably a result of the fragmentation of an once much more widely-distributed genus, which crossed the Dry Diagonal from the Atlantic Forest to southwestern Amazonia through forest corridors connecting those two biomes during periods of warmer climate over the past 25 million years. When the climate cooled and the tropical forests retreated, the open and drier environments of the Dry Diagonal advanced, and the populations of Streblopus in the Atlantic Forest and in the Amazon became isolated. It is known that the Middle Miocene experienced the highest temperatures of the last 20 million years (Zachos et al. 2001), and perhaps it was during its ʻclimate optimumʼ about 15 million years ago that the Amazonian and the Atlantic Forest populations of Streblopus were connected for the last time. Palaeomap modified from Scotese (2016).
Fig. 26. Genital segment. A. Streblopus opatroides van Lansberge, 1874. B. S in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 26. Genital segment. A. Streblopus opatroides van Lansberge, 1874. B. S. punctatus (Balthasar, 1938). Note that the medial sclerotized plate is larger and more sclerotized in S. punctatus than in S. opatroides; other differences refer to their lateral arches (indicated by blue arrows), which are concave in S. opatroides and more or less straight in S. punctatus, and the posterior arms of the MSP (indicated by red arrows), which are well developed and separated by a deep ʻU-shapeʼ in S. punctatus and only slightly indicated in S. opatroides. Abbreviations: LSP = lateral sclerotized plate; MSP = medial sclerotized plate.
Fig. 18. Mesotibiae. A‒B. Streblopus opatroides van Lansberge, 1874. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 18. Mesotibiae. A‒B. Streblopus opatroides van Lansberge, 1874. A. ♂. B. ♀. C‒D. S. punctatus (Balthasar, 1938). C. ♂. D. ♀. Observe that females of S. opatroides differ from those of S. punctatus by having a deep emargination at the apical edge of the mesotibiae (red arrow shows emargination).
Fig. 24 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 24. Internal sac of Streblopus opatroides van Lansberge, 1874. A‒C. Different views of the undissected internal sac and sclerites in resting position. D. Superior right peripheral sclerite. Arrow indicates a triangular area of a more sclerotized tegument that is probably homologous to a similar triangular area on the SRP of S. punctatus (Balthasar, 1938). E‒F. Apical and subapical sclerites. E. Resting position. F. Sclerites after separation. Abbreviations: A = axial sclerite; Rp = raspule; SA = subaxial sclerite; SRP = superior right peripheral sclerite; T = temones.
Fig. 17. Mesofemora. A‒B. Streblopus opatroides van Lansberge, 1874. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 17. Mesofemora. A‒B. Streblopus opatroides van Lansberge, 1874. A. ♂. B. ♀. Note the sexual dimorphism in the presence of a long row of setae on the posterior edge of the male mesofemur. C‒F. S. punctatus (Balthasar, 1938). C. ♂. D. ♀. E‒F. Detail of posterior region of metafemora. E. ♂. F. ♀. Note the strong alveolar microsculpture present near the posterior edge in males and the high concentration of umbilicate punctures in the same region in females.
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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.