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18 results for “Oryzomys”
Fig. 3 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 3. Bivariate plots of group centroids on canonical variates derived from discriminant functional analysis. Individual scores of four taxa of the Oryzomys megacephalus complex along the first and second canonical variates. Scores for each taxon are enclosed in a polygon and identified by name. The percent of the total variation explained by each axis is indicated.
Fig. 1 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 1. Strict consensus of two equally most parsimonious trees based on a branchandbound analysis of 26 ingroup sequences, each 801 bp long, from the cytochrome b gene. Included are multiple sequences for each of four taxa of the Oryzomys megacephalus group and O. yunganus. The tree is rooted by comparison to single sequences from each of five species of the O. nitidus group. Voucher numbers are given for each specimen. Provenance and other data for all but the new Bolivian taxon can be found in Patton et al. (2000) and Costa (2003). Bootstrap values (based on 1,000 iterations) are given at each basal node. Tree length 5 741 steps; consistency index 5 0.520; homoplasy index 5 0.480.
Fig. 13 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 13. Anterior and lateral views of skins. Top, from left: O. laticeps (USNM 545056), O. perenensis (USNM 530924), O. megacephalus (USNM 549548), O. acritus (USNM 597565). Below, from top, O. laticeps (USNM 545056), O. perenensis (USNM 582890), O. megacephalus (USNM 549548), O. acritus (USNM 597563). Note the warmer dorsal color of O. megacephalus and O. acritus, the contrasting dusky rostrum of O. acritus, paler and more uniform head color of O. megacephalus, and the slightly whiter venter of O. acritus compared to more grayish underparts of the upper two specimens.
Fig. 6 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 6. Map of Bolivia showing known localities of O. acritus; see specimens examined for names and coordinates; open circle (locality 1) represents the type locality.
Fig. 8 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 8. Dorsal view of crania of four species of the megacephalus complex, from top down: O. acritus (USNM 597577), O. laticeps (USNM 545056), O. megacephalus (USNM 549547), O. perenensis (USNM 530924).
Fig. 5 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 5. Tooth wear series of O. acritus, age classes I to IV. Paratypes, from left to right (USNM 597564, 597577, 597576, 597563).
Fig. 12 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 12. Occlusal cheekteeth of four species of the megacephalus complex, maxillary teeth above, mandibular teeth below; left to right: O. acritus (USNM 597577), O. laticeps (USNM 304571), O. megacephalus (USNM 549547), O. perenensis (USNM 549524). Note presence of fossettid (arrow) in O. acritus and O. megacephalus, and absence of fossettid and longer hypoflexid (opposite fossettid) in the two others.
Fig. 11 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 11. Crania of young adult O. acritus (USNM 597577; above) and O. megacephalus (USNM 549548; below). Arrows point to notch in rim of meatus, large foramen ovale, and strongly developed bony palatal excrescences of O. acritus.
Fig. 2 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 2. Bivariate plots of individual scores of four taxa of the O. megacephalus complex along the first and second (top) and second and third principal components axes (bottom). Scores for each taxon are enclosed in a polygon and identified by name. The percent of the total variation explained by each axis is indicated.
Fig. 14 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 14. Geographic ranges of megacephalus complex Oryzomys. Points indicate localities of specimens for which the cytb gene has been sequenced (many other localities are known); shading shows approximate geographic region occupied by the O. megacephalus complex. Modified from Costa (2003).
Fig. 9 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 9. Ventral view of crania, same specimens as in figure 8.
Fig. 4 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 4. Cranium and mandible of the holotype of O. acritus (MNK 3628).
Fig. 10 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 10. Lateral view of crania, same specimens as in figure 8.
Virginia Coast Reserve site, station Hog Island Rodent Trapping Transect 1, study of animal abundance of Oryzomys palustris in units of numberPerTrappingTransects on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Virginia Coast Reserve (VCR) contains animal abundance of Oryzomys palustris measurements in numberPerTrappingTransects units and were aggregated to a yearly timescale.
Virginia Coast Reserve site, station Hog Island Rodent Trapping Transect 4, study of animal abundance of Oryzomys palustris in units of numberPerTrappingTransects on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Virginia Coast Reserve (VCR) contains animal abundance of Oryzomys palustris measurements in numberPerTrappingTransects units and were aggregated to a yearly timescale.
Virginia Coast Reserve site, station Hog Island Rodent Trapping Transect 5, study of animal abundance of Oryzomys palustris in units of numberPerTrappingTransects on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Virginia Coast Reserve (VCR) contains animal abundance of Oryzomys palustris measurements in numberPerTrappingTransects units and were aggregated to a yearly timescale.
On following pages: 489. Coues's Marsh Rice Rat (Oryzomys couesi); 490. White-bellied Marsh Rice Rat (Oryzomys albiventer), 491. Nicaraguan Marsh Rice Rat (Oryzomys dimidiatus); 492. Gorgas's Marsh Rice Rat (Oryzomys gorgasi, 493. Santiago Galapagos Mouse (Nesoryzomys swarthi); 494. Small Fernandina Galapagos Mouse (Nesoryzomys fernandinae); 495. Large Fernandina Galapagos Mouse (Nesoryzomys narboroughi); 496. Galapagos Rice Rat (Aegialomys galapagoensis); 497 Yellowish Rice Rat (Aegialomys xanthaeolus); 498. Baron's Rice Rat (Aegialomys baroni); 499. Ica Rice Rat (Aegialomys ica); 500. Alfaro's Water Rat (Sigmodontomys alfari); 501. Harris's Rice Water Rat (Tanyuromys aphrastus); 502. Black-and-Yellow Rice Rat (Melanomys chrysomelas); 503. Cinnamon-rufous Rice Rat (Melanomys idoneus); 504. Colombian Rice Rat (Melanomys columbianus); 505. Dusky Rice Rat (Melanomys caliginosus); 506. Robust Dark Rice Rat (Melanomys robustulus); 507. Zuniga's Dark Rice Rat (Melanomys zunigae); 508. Intermediate Lesser Grass Mouse (Microakodontomys transitorius); 509. Lagoa Santa Pink-lipped Mouse (Bibimys labiosus); 510. Chacoan Pink-lipped Mouse (Bibimys chacoensis); 511. Torres's Pink-lipped Mouse (Bibimys torresi), 512. Brazilian Swamp Rat (Scapteromys meridionalis); 513. Argentinean Swamp Rat (Scapteromys aquaticus); 514. Uruguay Swamp Rat (Scapteromys tumidus); 515. Cerrado Giant Rat (Gyldenstolpia planaltensis); 516. Fossorial Giant Rat (Gyldenstolpia fronto); 517. Woolly Giant Rat (Kunsia tomentosus); 518. Andean Rat (Lenoxus apicalis); 519. Atlantic Forest Burrowing Mouse (Blarinomys breviceps); 520. Gray-bellied Brucie (Brucepattersonius griserufescens); 521. Short-tailed Brucie (Brucepattersonius soricinus); 522. Ihering's Brucie (Brucepattersonius iheringi). in Cricetidae
On following pages: 489. Coues's Marsh Rice Rat (Oryzomys couesi); 490. White-bellied Marsh Rice Rat (Oryzomys albiventer), 491. Nicaraguan Marsh Rice Rat (Oryzomys dimidiatus); 492. Gorgas's Marsh Rice Rat (Oryzomys gorgasi, 493. Santiago Galapagos Mouse (Nesoryzomys swarthi); 494. Small Fernandina Galapagos Mouse (Nesoryzomys fernandinae); 495. Large Fernandina Galapagos Mouse (Nesoryzomys narboroughi); 496. Galapagos Rice Rat (Aegialomys galapagoensis); 497 Yellowish Rice Rat (Aegialomys xanthaeolus); 498. Baron's Rice Rat (Aegialomys baroni); 499. Ica Rice Rat (Aegialomys ica); 500. Alfaro's Water Rat (Sigmodontomys alfari); 501. Harris's Rice Water Rat (Tanyuromys aphrastus); 502. Black-and-Yellow Rice Rat (Melanomys chrysomelas); 503. Cinnamon-rufous Rice Rat (Melanomys idoneus); 504. Colombian Rice Rat (Melanomys columbianus); 505. Dusky Rice Rat (Melanomys caliginosus); 506. Robust Dark Rice Rat (Melanomys robustulus); 507. Zuniga's Dark Rice Rat (Melanomys zunigae); 508. Intermediate Lesser Grass Mouse (Microakodontomys transitorius); 509. Lagoa Santa Pink-lipped Mouse (Bibimys labiosus); 510. Chacoan Pink-lipped Mouse (Bibimys chacoensis); 511. Torres's Pink-lipped Mouse (Bibimys torresi), 512. Brazilian Swamp Rat (Scapteromys meridionalis); 513. Argentinean Swamp Rat (Scapteromys aquaticus); 514. Uruguay Swamp Rat (Scapteromys tumidus); 515. Cerrado Giant Rat (Gyldenstolpia planaltensis); 516. Fossorial Giant Rat (Gyldenstolpia fronto); 517. Woolly Giant Rat (Kunsia tomentosus); 518. Andean Rat (Lenoxus apicalis); 519. Atlantic Forest Burrowing Mouse (Blarinomys breviceps); 520. Gray-bellied Brucie (Brucepattersonius griserufescens); 521. Short-tailed Brucie (Brucepattersonius soricinus); 522. Ihering's Brucie (Brucepattersonius iheringi).
Fig. 7 in A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia
Fig. 7. Soles of left hind feet of (A) Oryzomys acritus (USNM 597574); (B) O. megacephalus (MVZ 197663), note tiny hypothenar pad; (C) O. perenensis (MVZ 191254); (D) O. laticeps (MVZ 197631). Interdigital pads are numbered; H indicates hypothenar pad; S indicates plantar squamae. R is adjacent to the single complete dermal ring on first digit of O. acritus; note presence of two rings in B and C and three in D.
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