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opennotspecifiedDec 2011View details →

FIGURE 1 in Euglossa marianae sp. n. (Hymenoptera: Apidae): a new orchid bee from the Brazilian Atlantic Forest and the possible first documented local extinction of a forest-dependent orchid bee

FIGURE 1. Map showing the location of the three areas sampled in this study (yellow circles), the type locality of Euglossa marianae sp. n. (green circle), and the known areas where this species has been recorded (red circles) (see text for details).

FIGURE 4 in Youngest representative of the extinct genus Microphorites in the Eocene amber of France (Diptera: Dolichopodidae: Microphorinae)

FIGURE 4. Microphorites erikai sp. nov., holotype PA 979, photograph of wing base, arrow indicate series of setae on posterior margin. Scale bar = 0.5 mm.

FIGURE 3 in A stonefly species extinct in Europe (Taeniopteryx araneoides Klapalek, 1902, Taeniopterygidae, Plecoptera) is thriving in the Irtysh River in West Siberia and North Kazakhstan

FIGURE 3. Detail of a female of Taeniopteryx araneoides from Omsk, 3 v 2003: a—wings; b—end of abdomen in dorsoposterior view; d—the same, ventral view; scale bar 1 mm.

FIGURE 2 in A stonefly species extinct in Europe (Taeniopteryx araneoides Klapalek, 1902, Taeniopterygidae, Plecoptera) is thriving in the Irtysh River in West Siberia and North Kazakhstan

FIGURE 2. Details of Taeniopteryx araneoides males from Omsk, 3 v 2003: a–e—mature male, f—male with a not yet fully expanded epiproct; a—general habitus; b—wings; c—end of abdomen in lateral view; d—the same, dorsal view; e—the same, ventral view; f—laterodorsal view; scale bar 1 mm.

FIGURE 1 in A stonefly species extinct in Europe (Taeniopteryx araneoides Klapalek, 1902, Taeniopterygidae, Plecoptera) is thriving in the Irtysh River in West Siberia and North Kazakhstan

FIGURE 1. Taeniopteryx araneoides photographed at the Irtysh River in the Omsk centre: a—males on driftwood (two not fully mature with grey legs and a mature one with black legs), 29 iv 2006; b—female, 4 v 1979; c—attempt at mating of teneral male and a female with crumpled wings, 4 v 1979.

FIGURE 3 in A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

FIGURE 3. PremaXilla and mandible of Pyrrhula crassa n.sp. (A; MCMa 2003.016 holotype, A`; MCMa 2002.016, reVersed), P. murina (B, B`; SPEA-140) and P. pyrrhula (C; LARC- 2328, C`; CIPA-1570). From top to bottom: dorsal, Ventral and lateral VieWs. Quadrate of P. crassa n.sp. (D; MCMa 1998.016), P. pyrrhula (E; CIPA-1570), and Fringilla coelebs (F; IMEDEA 12518). Lateral VieW.

FIGURE 2. Measurements. 1 in A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

FIGURE 2. Measurements. 1: cranium length, from the apeX of the premaXilla to the end of the cranium; 2: dorsal length of the premaXilla, from the nasofrontal hinge to the premaXillary apeX; 3: Ventral length of the premaXilla, from the palatine notch to the premaXillary apeX; 4: nostril length, 5: nostril Width; 6: processus dorsonarialis Width; 7: premaXilla Width; 8: premaXilla height; 9: mandible length; 10: length of the mandibular symphysis; 11: maXimum Width of the symphysis; 12: minimum height of mandibular ramus; 13: maXimum mandibular height; 14: minimal mandibular height at the lateral cotyla; 15: length of the lateral cotyla; 16: maXimum Width of the mandible; 17: humerus length, from the caput humeris to the end of processus flexorius; 18: proXimal humerus Width; 19: humerus Width of shaft at midpoint; 20: humerus distal Width; 21: carpometacarpus length; 22: carpometacarpus proXimal Width; 23: carpometacarpus distal Width; 24: coracoid length, from the processus acrocoracoideus to the angulus medialis coracoidei. 25: tibiotarsus length from the apeX of the facies articularis medialis to the distal part of the distal condyles; 26: tibiotarsus Width of shaft at midpoint; and 27: tibiotarsus maXimum Width of the distal end.

FIGURE 6 in A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

FIGURE 6. (A): PCA plot for the tWo principal components obtained from premaXilla Ventral length, nostril length, and premaXilla Width and height (traits 3, 4, 7 and 8). (B): PCA plot for the tWo principal components obtained from mandible length, symphysis length and Width (traits 9, 10 and 11). Pyrrhula pyrrhula (triangles), P. erythaca (circles), P. murina (squares), and P. crassa n.sp. (stars).

FIGURE 1 in A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

FIGURE 1. Geographic position of Macaronesia in eastern Atlantic Ocean, shoWing the Azores Archipelago and the location of Furna do Calcinhas (spot) inside Caldeira Volcano in Graciosa Island.

FIGURE 4 in A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

FIGURE 4. Coracoid, humerus and carpometacarpus of Pyrrhula crassa n.sp. (A), P. murina (B) and P. pyrrhula (C). From top to bottom: left coracoid dorsal VieW, left humerus caudal VieW and right carpometacarpus Ventral VieW. Right tibiotarsus of P. crassa n.sp. (A`), P. murina (B`) and P. pyrrhula (C`), cranial VieW. From top to bottom (A): MCMa 2010.016, MCMa 1998.016, MCMa 2009.016; (B): SPEA-120; (C): CIPA 2057, CIPA 1570, CIPA 2328. (A`): MCMa 1998.016; (B`): SPEA- 120; (C`): LARC 2328.

FIGURE 5. A in A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

FIGURE 5. A: Skull and mandible, lateral VieW. From top to bottom: Pyrrhula pyrrhula, LARC 2328; P. murina, SPEA 120; P. crassa n.sp., based on premaXilla MCMa 2006.016 and mandible MCMa 2002.016. The missing parts haVe been added using the equiValent parts of P. murina. Scale = 1 cm. B: From top to bottom: aspect of eXtant P. pyrrhula; P. murina; and possible aspect in life of P. crassa n.sp. (colours are speculatiVe). Art by Pau OliVer.

opencc-by-4.0Sep 2024View details →

Research Data for 'Oxic conditions in shallow marine settings during the Permian-Triassic Mass Extinction'

Complete geochemical data set  for Siusi/Seis including bulk major, minor and trace element data as well as TOC and mercury content.

opencc-by-4.0Aug 2024View details →

Beringia megafauna extinctions during last deglacial climatic transitions

The causes of last deglacial megafauna extinctions in Beringia remain highly debated, with evidence pointing to climate change, human hunting, or a combination of both. One key uncertainty is associated with the current poor understanding of regional climate evolution in part due to lack of integrated proxy-model analyses, though studies of the globe repeatedly documented large climate shifts of this time period. Here, we present terrestrial temperature and moisture reconstructions since the Last Glacial Maximum by magnetic and geochemical measurements in a sediment core collected from the northern shelf of the Bering Sea. We reconstruct the marine-terrestrial environmental teleconnections, corresponding to warmer and wetter conditions between 14,700 and 13,500 years ago associated with the Bølling/Allerød interstadial (BA). Our climate model analysis confirms proxy data and attributes the climatic amelioration to increased regional heat and moisture transport from the low-latitude North Pacific Ocean, accompanied by a northward expansion of the Westerly Jet. The increased temperature and moisture availability facilitated the expansion of shrub tundra to the expanse of the previously dominating grass and forb rangelands, which appears to lead to the disappearance of megafauna grazers during the onset of BA. Our findings emphasize a crucial role of climate-driven habitat losses in contributing to the turnover in mammal communities across the last deglacial Beringia.

PLATE 2 in A new species of capuchin monkey, genus Cebus Erxleben (Cebidae, Primates): found at the very brink of extinction in the Pernambuco Endemism Centre

PLATE 2. The blond capuchin showing (a) the face and the faded white cap, and (b) a lateral view of whole body.

PLATE 5 in A new species of capuchin monkey, genus Cebus Erxleben (Cebidae, Primates): found at the very brink of extinction in the Pernambuco Endemism Centre

PLATE 5. The first picture ever taken of the blond capuchin, Cebus queirozi sp. nov. in their natural environment, a Montrichardia linina swamp in the Pernambuco Endemism Center, the paratype.

PLATE 4 in A new species of capuchin monkey, genus Cebus Erxleben (Cebidae, Primates): found at the very brink of extinction in the Pernambuco Endemism Centre

PLATE 4. The blond capuchin showing the much lighter fur that covers (a) hand, and (b) feet, and their black and furless palms.

FIGURE 1 in A new species of capuchin monkey, genus Cebus Erxleben (Cebidae, Primates): found at the very brink of extinction in the Pernambuco Endemism Centre

FIGURE 1. Location of the new species, Cebus queirozi sp. nov. in the Pernambuco Endemism Center, according to this study, and distribution of the other Cebus species referred to the adjacent area, according to Groves (2001) and Rylands et al. (2005).

PLATE 3 in A new species of capuchin monkey, genus Cebus Erxleben (Cebidae, Primates): found at the very brink of extinction in the Pernambuco Endemism Centre

PLATE 3. The blond capuchin showing (a) head and shoulders, and (b) lateral view of the face and neck, with a furless, accentuated pendulous throat flap.

opencc-by-4.0Nov 2023View details →

The hourly data of the aerosol extinction coefficient of the Mount Qomolangma lidar

珠穆朗玛峰激光雷达垂直平均气溶胶消光系数0.15-2.5 km逐小时数据。