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230 results for “species presence”
Data from: Correction of location errors for presence-only species distribution models
1. Species distribution models (SDMs) for presence-only data depend on accurate and precise measurements of geographic and environmental covariates that influence presence and abundance of the species. Some data sets, however, may contain both systematic and random errors in the recorded location of the species. Environmental covariates at the recorded location may differ from those at the true location and result in biased parameter estimates and predictions from SDMs. 2. Regression calibration is a well-developed statistical method that can be used to correct the bias in estimated coefficients and predictions from SDMs when the recorded geographic location differ from the true location for some, but not all locations. We expand the application of regression calibration methods to SDMs and provide illustrative examples using simulated data and opportunistic records of whooping cranes (Grus americana). 3. We found we were able to successfully correct the bias in our SDM parameters estimated from simulated data and opportunistic records of whooping cranes using regression calibration. 4. When modeling species distributions with data that have geographic location errors, we recommend researchers consider the effect of location errors. Correcting for location errors requires that at least a portion of the data have locations recorded without error. Bias correction can result in an increase in variance; this increase in variance should be considered when evaluating the utility of bias correction.
FIGURES 7–13 in The presence of Varipes LugoOrtiz & McCafferty (Ephemeroptera: Baetidae) in Brazil, with the description of a new species
FIGURES 7–13. Varipes helenae, sp. n., nymph. 7. Foreleg. 8. Detail of tarsal claw. 9. Mid femur. 10. Hind femur. 11. Tergum 4 (detail of posterior margin). 12. Gill 4. 13. Paraproct.
FIGURE 2. P. pharmamari n in Presence of the Indo – Pacific genus Petrosaspongia Bergquist, 1995 (Porifera: Demospongiae) in the Atlantic with description of a new species (P. pharmamari n. sp.)
FIGURE 2. P. pharmamari n. sp.: (A) holotype showing an unarmoured surface with protruding primary fibres, (B) primary fibres (double arrow) cored with abundant foreign debris, (C) strongly laminated secondary fibres, (D) surface of a secondary fibre showing longitudinal ripples (arrow). SEM pictures.
FIGURE 1. P in Presence of the Indo – Pacific genus Petrosaspongia Bergquist, 1995 (Porifera: Demospongiae) in the Atlantic with description of a new species (P. pharmamari n. sp.)
FIGURE 1. P. nigra: (A) holotype preserved in alcohol, (B) primary fibres (double arrow) with foreign debris and a network of secondary fibres (arrow), (C) laminated secondary fibres with longitudinal ripples, (D) choanosome with considerable amounts of foreign debris (arrows). SEM
FIGURE 4. P. pharmamari n in Presence of the Indo – Pacific genus Petrosaspongia Bergquist, 1995 (Porifera: Demospongiae) in the Atlantic with description of a new species (P. pharmamari n. sp.)
FIGURE 4. P. pharmamari n. sp.: (A) fenestrate plates (arrow) at the junction between primary and secondary fibres (arrow), (B) choanosome with considerable amounts of foreign debris (arrow), (C) a broken secondary fibre crossed by a thin tertiary fibre (arrow). SEM pictures.
FIGURE 3 in Presence of the Indo – Pacific genus Petrosaspongia Bergquist, 1995 (Porifera: Demospongiae) in the Atlantic with description of a new species (P. pharmamari n. sp.)
FIGURE 3. Light microscope pictures of the secondary skeleton of (A) P. nigra, (B) P. pharmamari, (C) laminated secondary fibres of P. nigra, (D) laminated secondary fibre of P. pharmamari.
FIGURE 2 in A new species of Typhlocharis Dieck, 1869 (Coleoptera: Carabidae: Anillini) from South Spain, with notes on the phylogenetic value of sexually related characters and the presence of stridulatory organ (pars stridens) in the genus
FIGURE 2. Abdomen (ventral view) of female and male, showing the median tubercle, the foveae, the chaetotaxy of the last segment and the "belt" of scaly microsculpture (shaded in grey).
FIGURE 4 in A new species of Typhlocharis Dieck, 1869 (Coleoptera: Carabidae: Anillini) from South Spain, with notes on the phylogenetic value of sexually related characters and the presence of stridulatory organ (pars stridens) in the genus
FIGURE 4. Pattern of microreticulation in the vertex region of T. monastica (a) and T. farinosae (b) showing the differences between species with and without pars stridens. (Modified from Zaballos & Wrase 1998, Zaballos & Ruíz-Tapiador 1997).
FIGURE 3 in A new species of Typhlocharis Dieck, 1869 (Coleoptera: Carabidae: Anillini) from South Spain, with notes on the phylogenetic value of sexually related characters and the presence of stridulatory organ (pars stridens) in the genus
FIGURE 3. Aedeagus in lateral and dorsal view, parameres in lateral view (a). Female genitalia in ventral view (b).
FIGURES 7–12 in The presence of species of Pseudochironomus Malloch 1915 (Diptera: Chironomidae) in watercourses of Chaco Serrano Ecoregion (Argentina, South America)
FIGURES 7–12. Pseudochironomus viridis (Kieffer), pupa: 7, frontal apotome; 8, thorax frontal part with thoracic horn; 9, tergites I–VII shagreen; 10, detail of tubercles of SI; 11, caudolateral spines of sternite VIII; 12, tergite VIII and anal lobus (scales = 100 µm).
FIGURES 1–6 in The presence of species of Pseudochironomus Malloch 1915 (Diptera: Chironomidae) in watercourses of Chaco Serrano Ecoregion (Argentina, South America)
FIGURES 1–6. Pseudochironomus viridis (Kieffer), male: 1, color pattern of legs, anterior to posterior from right to left (scale= 500 µm); 2, thorax (scale= 100 µm); 3, wing (scale = 500 µm); 4, hypopygium, dorsal view, half right tergite IX removed (scale= 100 µm); 5, detail of posterior margin of tergite IX (scale= 100 µm); 6, pars ventralis (scale= 100 µm).
FIGURES 13–17 in The presence of species of Pseudochironomus Malloch 1915 (Diptera: Chironomidae) in watercourses of Chaco Serrano Ecoregion (Argentina, South America)
FIGURES 13–17. Pseudochironomus viridis (Kieffer), larva: 13, antenna; 14, premandible; 15, pecten epipharyngis; 16, mentum; 17, mandible (scales = 100 µm).
FIGURES 62–70 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 62–70. Notanisus vanharteni, ♀ holotype. 62, lateral habitus. 63, pronotum and mesonotum, dorsolateral. 64, head and pronotum. 65, scutellar-axillar complex. 66, mesepimeron, metapleuron, metacoxa and petiole, lateral. 67, propodeum, petiole and metacoxae, dorsal. 68, antennae (upper antenna lateral). 69, fore wing. 70, fore wing apex (dashed lines delimit dorsal bare region).
FIGURES 37–45 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 37–45. Notanisus longipetiolus ♀. 37–41, holotype: 37, lateral habitus; 38, pronotum and mesonotum, dorsolateral; 39, head and pronotum; 40, scutellar-axillar complex; 41; mesepimeron and metapleuron. 42, propodeum–base of gaster and metacoxae, dorsal (2014-45). 43–45, holotype: 43, antenna, lateral; 44, fore wing; 45, fore wing apex (dashed lines delimit dorsal bare region).
FIGURES 29–36 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 29–36. Notanisus kansensis, ♀ holotype. 29, lateral habitus. 30, head, frontal. 31, antenna [insert: apical two funiculars and clava, lateral]. 32, mesopleuron, metapleuron, metacoxa and petiole, lateral. 33, pronotum and mesonotum, dorsolateral. 34, scutellum–petiole and metacoxae, dorsal. 35, fore wing apex. 36, fore wing.
FIGURES 21–26 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 21–26. Notanisus brevipetiolus, ♀ paratype. 21, head and pronotum. 22, scutellar-axillar complex. 23, pronotum and mesonotum, dorsolateral. 24, mesepimeron and metapleuron. 25, fore wing. 26, fore wing apex (dashed lines delimit dorsal bare region).
FIGURES 16–20 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 16–20. Notanisus brevipetiolus, ♀ holotype. 16, dorsal habitus. 17, dorsolateral habitus. 18, propodeum, petiole and metacoxae, dorsal. 19, antenna, lateral. 20, fore wing.
FIGURES 1–8 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 1–8. Notanisus sexramosus ♀. 1, lateral habitus, macropterous form (2014-1). 2–5, brachypterous form (2014-2): 2, dorsal habitus; 3, head, frontal; 4, mesosoma, dorsolateral; 5, scutellar-axillar complex and wings. 6, antenna (2014-2) [insert: preclaval and claval segments, lateral (2014-1)]. 7, fore wing (2014-1). 8, apex of scutellum–base of gaster and metacoxae, dorsal (2014-2).
FIGURES 77–85 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 77–85. Notanisus yemenensis, ♀ holotype. 77, lateral habitus. 78, dorsal habitus. 79, head, antennae and pronotum. 80, pronotum and mesonotum, dorsolateral. 81, scutellar-axillar complex. 82, propodeum. 83, apical five funiculars and clava, lateral. 84, fore wing. 85, fore wing apex (dashed lines delimit dorsal bare region except for single seta).
FIGURES 71–76 in The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group
FIGURES 71–76. Notanisus vanharteni ♂. 71, lateral habitus (2014-48). 72, head and pronotum, dorsolateral (2014-49). 73, scutellar-axillar complex–petiole and metacoxae, dorsal (2014-50). 74, mesepimeron, metapleuron, metacoxa and petiole, lateral (2014-51). 75, antenna, inner view (2014-48). 76, fore wing (2014-49).
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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