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226 results for “Amazon region”
Figure 4 in Alien spiders: First record of Loxosceles gaucho Gertsch, 1967 (Araneae: Sicariidae) in the Amazon region, Brazil
Figure 4. Loxosceles amazonica. (A) (Female), live specimen. (B) palp, retrolateral view; (C) palp, prolateral view. (D) spermathecae, ventral view.
Figure 3 in Alien spiders: First record of Loxosceles gaucho Gertsch, 1967 (Araneae: Sicariidae) in the Amazon region, Brazil
Figure 3. Loxoceslesgaucho. (A) (female), livespecimen;(B) eggsacs;(C) immatureslivespecimens; (D) specimensinprelarvastate;(E) specimeninprelarvastate, detail.
Figure 5 in Alien spiders: First record of Loxosceles gaucho Gertsch, 1967 (Araneae: Sicariidae) in the Amazon region, Brazil
Figure 5. Map showing records of L. gaucho in Brazil. It is indicated in brown the Brazilian states with records in literature: São Paulo and Minas Gerais (Gertsch, 1967; Cardoso et al., 2003), Paraná and Rio Grande do Sul (Gertsch, 1967; Fischer, 1994). In yellow the new record in the state of Amazonas, Manaus city.
Moisture origins of the Amazon carbon source region
<p>Data belonging to the article:</p> <p>Staal, A., Koren, G., Tejada, G. & Gatti, L.V. (2023). Moisture origins of the Amazon carbon source region. Environmental Research Letters 18, 044027. DOI:10.1088/1748-9326/acc676</p> <p>The data include the moisture sources (in mm) of each of the "regions of influence" (Gatti et al. 2021, Nature) for each quarter during 2010-2018, as well as the masks of the regions of influence. Fore further details, see Staal et al. (2023) and the attributes of the netcdf files.</p>
FIG. 17 in Two new genera of Acanthopidae (Mantodea) from the Amazon region, with description of a new species
FIG. 17. — Parvacanthops parva (Beier, 1942) n. comb., wings. Scale bar: 5 mm.
FIG. 15 in Two new genera of Acanthopidae (Mantodea) from the Amazon region, with description of a new species
FIG. 15. — Parvacanthops parva (Beier, 1942) n. comb., head, anterior view. Scale bar: 1 mm.
Earthworm's traits dataset from the Amazon region
<p>The dataset comprises information on earthworm species, their functional traits, associated soil properties, and geographic details such as locality and altitude. The data is sourced from the Soil Invertebrates Collection, hosted within the Soil Biology Laboratory at Maranhão State University (UEMA), situated in the Eastern Amazon region.</p>
Fish sampling and physicochemical data for aquatic habitats in the Santarem region of the Lower Amazon, Brazil
<p>Explaining the mechanisms underlying spatial and temporal variation in community composition is a major challenge. Nevertheless, the processes controlling temporal variation at a site (i.e., temporal β-diversity, including its turnover and nestedness components) are less understood than those affecting variation among sites (i.e., spatial β-diversity). Short-term temporal turnover (e.g., throughout an annual cycle) is expected to correlate positively with seasonal environmental variability and landscape connectivity, but also species pool size (γ-diversity). We use the megadiverse Amazonian freshwater ichthyofauna as a model to ask whether seasonality and landscape connectivity drive variation in temporal species turnover among geomorphological habitat types, while accounting for between-habitat variation in γ-diversity. 11,397 fish representing 260 species were collected during a year-long sampling program from an area containing the lowland Amazon's four major geomorphological habitat types: rivers, floodplains, terra firme streams, and shield streams. River-floodplain systems exhibit strong but predictable seasonality (via a high-amplitude annual flood pulse), high connectivity, and high species richness with many rare species. Terra firme and shield streams exhibit low seasonality, low connectivity, and low species richness with proportionally fewer rare species. Based on these parameters we predicted that river-floodplain systems should have higher temporal turnover than stream systems. Using a null model approach combined with β-deviation calculations, we confirmed that rivers and floodplains do exhibit higher turnover (but not nestedness) than terra firme and shield streams, even when controlling for the potentially confounding effect of higher species richness in river-floodplain systems. All habitats exhibit low temporal nestedness, indicating that short-term changes in community composition result primarily from temporal species turnover. Our results provide a timely reminder that efforts to conserve the Amazon's threatened aquatic biodiversity should account for the distinct temporal dynamics of habitat types and variation in hydrological seasonality.</p>
Fish sampling and physicochemical data for aquatic habitats in the Santarem region of the Lower Amazon, Brazil
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Taxonomic, functional and phylogenetic beta diversity of upland forest birds in the Amazon: The relative importance of biogeographic regions, climate, and geographic distance
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FIGURE 12 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 12. Frequency distribution (%) of the classes of carapace length (CL) and total body length (TL) of the male and female (non-ovigerous and egg-bearing) specimens of the alpheid shrimp, Leptalpheus marginalis Anker, 2011, collected from the burrows of the callichirid "ghost" shrimp, Lepidophthalmus siriboia Felder & Rodrigues, 1993, on the Ajuruteua Peninsula, state of Pará, Amazon region, Brazil.
FIGURE 4. Leptalpheus forceps Williams, 1965 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 4. Leptalpheus forceps Williams, 1965 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A–E) ♂ specimen (CL=4.54 mm; TL=11.42 mm): (A) major cheliped, mesial view; (B) same, lateral view; (C) minor cheliped, mesial view; (D) same, lateral view; (E) minor cheliped, carpus, and chela, ventromesial view. Scale bars=1 mm.
FIGURE 6. Leptalpheus forceps Williams, 1965 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 6. Leptalpheus forceps Williams, 1965 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A) ♂ specimen (CL=4.54 mm; TL=11.42 mm); (B) ♂ specimen (CL=2.4 mm; TL=6.28 mm); (C) ♂ specimen (CL= 3.18 mm; TL=8.36 mm); (D) ♂ specimen (CL=3.54 mm; TL=10.04 mm): (A–D) major cheliped, details of chela fingers, lateral view. Scale bars=0.5 mm.
FIGURE 2. Leptalpheus forceps Williams, 1965 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 2. Leptalpheus forceps Williams, 1965 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A) ♂ specimen (CL= 5.74 mm; TL= 13.98 mm) in lateral view. (B) ♂ specimen (CL= 4.52 mm; TL= 12.24 mm) in dorsal view. (C) ovigerous ♀ specimen (CL= 4.86 mm; TL= 13.74 mm) in lateral view. Specimens and colour patterns as in life.
FIGURE 10. Leptalpheus marginalis Anker, 2011 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 10. Leptalpheus marginalis Anker, 2011 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A–H) ♂ specimen (CL=4.3 mm; TL=11.2 mm): (A) major cheliped, mesial view; (B) same, lateral view; (C) major cheliped, details of chela fingers, mesial view; (D) same, lateral view; (E) minor cheliped, mesial view; (F) same, lateral view; (G) minor cheliped, carpus, and chela, ventromesial view; (H) telson, dorsal view. Scale bars=1 mm.
FIGURE 9. Leptalpheus marginalis Anker, 2011 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 9. Leptalpheus marginalis Anker, 2011 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A, C) ♂ specimen (CL=4.3 mm; TL=11.2 mm); (B, D) ♂ specimen (CL=3.5 mm; TL=9.5 mm): (A) frontal region of the carapace and frontal appendages, dorsal view; (B) frontal region of the carapace, dorsal view; (C) frontal region of the carapace and frontal appendages, lateral view; (D) frontal region of the carapace, lateral view. Scale bars=1 mm.
FIGURE 7 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 7. Frequency distribution (%) of the classes of carapace length (CL) and total body length (TL) of the male and female (non-ovigerous and egg-bearing) specimens of the alpheid shrimp, Leptalpheus forceps Williams, 1965, collected from the burrows of the callichirid "ghost" shrimp, Lepidophthalmus siriboia Felder & Rodrigues, 1993, on the Ajuruteua Peninsula, state of Pará, Amazon region, Brazil.
FIGURE 5. Leptalpheus forceps Williams, 1965 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 5. Leptalpheus forceps Williams, 1965 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A) ♂ specimen (CL=4.54 mm; TL= 11.42 mm); (B) ♂ specimen (CL=2.4 mm; TL=6.28 mm); (C) ♂ specimen (CL=3.18 mm; TL=8.36 mm); (D) ♂ specimen (CL=3.54 mm; TL=10.04 mm): (A–D) major cheliped, details of chela fingers, mesial view. Scale bars=0.5 mm.
FIGURE 1 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil
FIGURE 1. (A) The Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (●) Locations at which the alpheid shrimps, Leptalpheus forceps Williams, 1965 and Leptalpheus marginalis Anker, 2011, were collected; (B) Muddy-sandy intertidal habitat located on the Ajuruteua Peninsula where the specimens of alpheid shrimps were collected from callichirid burrows; (C) the burrowing "ghost" shrimp, Lepidophthalmus siriboia Felder & Rodrigues, 1993 (Callichiridae) (♂ specimen; CL=14.41 mm, TL=48.95 mm; dorsal view), the host species of the two Leptalpheus species collected on the Ajuruteua Peninsula. Photographs by D. J. B. Simith.
FIGURE 3 in A new species of Loricaria (Siluriformes: Loricariidae) from the Turiaçu River basin, Eastern Amazon region, Brazil
FIGURE 3. Geographic distribution of Loricaria turi. Star represents the holotype and circles paratypes.
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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.