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48 results for “Andes cordillera”
Miocene construction of the High Andes recorded by exhumation of the Frontal Cordillera, La Ramada Massif of western Argentina (32°S) (Supporting Information)
<p>Supporting datasets for Howlett et al., "Miocene construction of the High Andes recorded by exhumation of the Frontal Cordillera, La Ramada Massif of western Argentina (32°S)" in <em>TECTONICS.</em></p>
Figure 17 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 17 Hyloscirtus sethmacfarlanei sp. nov., at the type locality and its habitat. (A) Humid cloud forest with Guzmania sp. bromeliads at type locality. (B) Female Holotype (DHMECN 14416). (C) Juvenile paratype (DHMECN 14549). (D) Uncollected juvenile. Photographs: FR, JPRP. Full-size DOI: 10.7717/peerj.14066/fig-17
Figure 16 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 16 Maps of northwestern South America showing the ecological niche modeling for all species of the northern clade of the Hyloscirtus larinopygion species group (yellow to red shadows). (A, B) Both maps show the same ecological niche model but species were divided into two maps to allow locality points for all species to be included. Type locality of H. sethmacfarlanei sp. nov. indicated by a black triangle in (A). Full-size DOI: 10.7717/peerj.14066/fig-16
Figure 15 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 15 Comparison of the CT scans of the posteromedials of the hyobranchium in different species of the Hyloscirtus larinopygion group. (A) Hyloscirtus sethmacfarlanei sp nov. holotype (DHMECN 14416). (B) Hyloscirtus larinopygion (DHMECN 3799). (C) Hyloscirtus lindae (DHMECN 12483). (D) Hyloscirtus psarolaimus (DHMECN 6493). (E) Hyloscirtus pacha (DHMECN 12111). (F) Hyloscirtus tapichalaca (DHMECN 9686). Full-size DOI: 10.7717/peerj.14066/fig-15
Figure 13 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 13 Dorsal view of CT scan skull detail of Hyloscirtus sethmacfarlanei sp. nov. in comparison with other related members of the H. larinopygion group. (A) Hyloscirtus sethmacfarlanei sp. nov. (DHMECN 14416). (B) Hyloscirtus larinopygion (DHMECN 3799). (C) Hyloscirtus pacha (DHMECN 12111). (D) Hyloscirtus psarolaimus (DHMECN 6493). (E) Hyloscirtus lindae (DHMECN 12483). (F) Hyloscirtus tapichalaca (DHMECN 9686). Individual skull diagnostic bones given false colors. Blue: alary process of the premaxilla. Bright yellow: septomaxilla. Brown: maxilla. Purple: sphenoides (in H. tapichalaca this is fused with nasals). Light blue anterior: neopalatine. Light blue posterior: pterigoides. Red anterior: frontoparietals. Posterior red punctuation represents conjunction with exoccipital. White: frontoparietal fontanelle. Light yellow: prootic. Green: squamosal. Pink: quadratojugal. Full-size DOI: 10.7717/peerj.14066/fig-13
Figure 14 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 14 CT scan of the ventral view of the forelimb bones of the holotype of Hyloscirtus sethmacfarlanei sp. nov. (DHMECN 14416). (A) Distal clawed phalanges (light blue). (B) Medial phalanges (dark blue). (C) Proximal phalanges (red). (D) Prepolex (light green). (E) Distal carpal II (purple). (F) Fused distal Carpals 3+4+5 (pink). (G) Radiale (orange). (H) Ulnare (yellow). (I) Radioulna (dark green). (J) Humerus (brown). Full-size DOI: 10.7717/peerj.14066/fig-14
Figure 12 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 12 Osteological details of the cranium of the adult female holotype (DHMECN 14416) Hyloscirtus sethmacfarlanei sp. nov.. (A) Dorsal view. (B) Ventral view. (C) Anterior view. (D) Lateral view. Labels: AP, alary process of premaxilla; AS, angulosplenial; COL, columella; D, dental; EXO, exoccipital; FP, frontoparietal; FPF, frontoparietal fontanelle; MMK, mentomeckelian bone; MX, maxilla; NA, nasal; NPL, neopalatine; OC, occipital condyle; PM, premaxilla; PO, prootic; PS, parasphenoid; PT, pterygoid; QJ, quadratojugal; SQ, squamosal; SE, sphenethmoid; SM, septomaxilla; V, vomer. Full-size DOI: 10.7717/peerj.14066/fig-12
Figure 11 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 11 Live individiuals of Hyloscirtus sethmacfarlanei sp. nov. in situ. (A) Female holotype (DHMECN 14416). (B) Juvenile paratype (DHMECN 14549). (C) Juvenile, not collected, in its natural habitat. (D) Same juvenile adopting defensive behavior. Photos: LJ, FR, JPRP. Full-size DOI: 10.7717/peerj.14066/fig-11
Figure 9 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 9 Vent condition in preserved specimens of six species of Hyloscirtus in the H. larynopygion group. (A) Hyloscirtus larinopygyion (DHMECN 3799). (B) Hyloscirtus psarolaimus (DHMECN 6493). (C) Hyloscirtus sethmacfalanei sp. nov. (DH MECN 14416). (D) Hyloscirtus pacha (DHMECN 12111). (E) Hyloscirtus lindae (DHMECN 12483). (F) Hyloscirtus tapichalaca (DHMECN 9686). Photographs: MYM. Full-size DOI: 10.7717/peerj.14066/fig-9
Figure 8 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 8 Comparison in life of Hyloscirtus sethmacfarlanei sp. nov. with six species of Hyloscirtus from the H. larinopygion group from the Andes of Ecuador. (A) Hyloscirtus sethmacfarlanei sp. nov., female holotype (DHMECN 14416). (B) Hyloscirtus sethmacfarlanei sp. nov., juvenile paratype (DHMECN 14549). (C) Hyloscirtus princecharlesi (photographic record QCAZ). (D) Hyloscirtus larinopygion, photographic record QCAZ. (E) Hyloscirtus lindae (DHMECN 12483). (F) Hyloscirtus pantostictus (photographic record QCAZ). (G) Hyloscirtus psarolaimus (DHMECN 6493). (H) Hyloscirtus pacha (DHMECN 12111). Photographs: JPRP, MYM, Santiago Ron. QCAZ, Jorge Brito. Full-size DOI: 10.7717/peerj.14066/fig-8
Figure 7 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 7 Lateral detail of head in life of the type series of Hyloscirtus sethmacfarlanei sp. nov. (A) Female holotype (DHMECN 14416). (B) Juvenile paratype (DHMECN 14549). Juvenile paratype (DHMECN 14549), note coloration in nictitating membrane. Photographs: MYM. Full-size DOI: 10.7717/peerj.14066/fig-7
Figure 4 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 4 Details of the hand and foot of the preserved holotype of Hyloscirtus sethmacfarlanei sp. nov. (DHMECN 14416). Photographs: MYM. Full-size DOI: 10.7717/peerj.14066/fig-4
Figure 5 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 5 Dorsal coloration of Hyloscirtus sethmacfarlanei sp. nov. (A) Female holotype (DHMECN 14416). (B) Juvenile paratype (DHMECN 17554). (C) Juvenile paratype (DHMECN 14549). Photographs: MYM. Full-size DOI: 10.7717/peerj.14066/fig-5
Figure 3 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 3 Dorsal, lateral, and ventral views of the preserved holotype of Hyloscirtus sethmacfarlanei sp. nov. (DHMECN 14416). Photographs: MYM. Full-size DOI: 10.7717/peerj.14066/fig-3
Figure 2 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 2 Linear regression of divergence time vs genetic distance for some Hyloscirtus species of the Hyloscirtus larinopygion group. Line (A) is the unconstrained regression line. Line (B) is constrained to pass through the origin. Red segments represent the ranges of genetic distances (2.2–2.9%) and inferred divergence times between H. sethmacfarlenei sp. nov.and H. tigrinus, the known species with the smallest genetic distance to the new species. The estimated divergence time should be considered only a rough estimate. Full-size DOI: 10.7717/peerj.14066/fig-2
Figure 1 in A spectacular new species of Hyloscirtus (Anura: Hylidae) from the Cordillera de Los Llanganates in the eastern Andes of Ecuador
Figure 1 Evolutionary relationships of species in the Hyloscirtus larinopygion group, based on the mitochondrial gene 16S under ML criterion. Clade support (bootstrap %) are in blue. The new species is in red. Full-size DOI: 10.7717/peerj.14066/fig-1
Figure 1 in Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
Figure 1. Natural covers map showing camera traps distribution at 9 grids throughout the study area.
Miocene construction of the High Andes recorded by exhumation of the Frontal Cordillera, La Ramada Massif of western Argentina (31°S) (Supporting Information)
<p>Supporting datasets for Howlett et al., "Miocene construction of the High Andes recorded by exhumation of the Frontal Cordillera, La Ramada Massif of western Argentina (31°S)" <em><strong>in review</strong></em> at <em>Earth and Planetary Science Letters (EPSL) </em>as of <strong>April 3, 2024.</strong></p>
Data from: A millennium of climatic and floristic dynamics in the Eastern Cordillera of the Colombian Andes
<p><span>The transition from the Medieval Climate Anomaly (MCA, 950-1250 CE) to the Little Ice Age (LIA, 1350 to 1800 CE) is the largest pre-industrial climate shift within the last two millennia, offering an opportunity to study how vegetation responds to rapid climate change. We analyzed a sedimentary record from the Colombian Andes to reconstruct regional vegetation dynamics during this time interval, identify the modern environmental distribution of taxa present in the fossil record, and provide a reference for modern regional temperature change.</span> <span>A sediment core was analyzed for organic geochemistry and pollen to reconstruct environmental and vegetation variability between 800 and 1800 CE. Modern occurrences of individuals of the genera found in the fossil record were used to model the distribution of taxa across gradients of mean annual temperature and precipitation. These models were used to reconstruct temperature and precipitation across time and evaluate the probability of occurrence of taxa from the fossil record across the contemporary landscape. </span><span> </span><span>Reconstructed regional vegetation dynamics were highly coupled with global temperature patterns. Reconstructed climate showed that conditions were warm and dry during the MCA, and cold and relatively wet during the LIA, although quantitative estimations might have been amplified by human disturbances. Rates of temperature change during the MCA-LIA transition were substantially lower than those calculated for the last two decades. Vegetation turnover between 800 and 1800 CE resembled those expressed through a transect extending ~30 km southeast from the lake.</span><span> Around lake Tota, modern rates of temperature change have no precedent within the last two millennia. The modern environmental affinities of taxa involved in vegetation turnover during the MCA-LIA transition point to the importance of landscape diversity and connectivity for rapid vegetation response to climate change.</span></p>
Data from: A millennium of climatic and floristic dynamics in the Eastern Cordillera of the Colombian Andes
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