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112 results for “Rhinoceros”
Fig. 2 in Hybridisation In The Wild Between The Great Hornbill (Buceros Bicornis) And The Rhinoceros Hornbill (Buceros Rhinoceros) In Thailand And Its Genetic Assessment
Fig. 2. Comparative features among the chicks of the hybrid (I and a–f), the great hornbill (II and g–l), the rhinoceros hornbill (III and m–r), and adult males and females of both species (A–C). Descriptions of morphological features of the hybrid chick and chicks of the great hornbill and the rhinoceros hornbill were given in Table 1. Please note that the female great hornbill and the male rhinoceros hornbill in II and III are not the real hybrid parents.
Fig. 1 in Hybridisation In The Wild Between The Great Hornbill (Buceros Bicornis) And The Rhinoceros Hornbill (Buceros Rhinoceros) In Thailand And Its Genetic Assessment
Fig. 1. Capture locations of two interspecific hybrids and a mother great hornbill in 2004 at Budo Mountain within the National Park (a) and in 2008 at 4 km from the National Park (b).
FIG. 35. Rhinoceros unicornis AMNH M-274636, perinatal specimen. A in Cranial Morphology And Phylogenetic Relationships Of Trigonostylops Wortmani, An Eocene South American Native Ungulate
FIG. 35. Rhinoceros unicornis AMNH M-274636, perinatal specimen. A, general view of caudal cranium, ventral aspect; B, right auditory region, oblique ventrolateral view (stereopair); C, right auditory region, oblique dorsolateral view (skull cap removed, cut edge indicated by hachure); D, aspect as in C, but viewed from slightly different vantage point in order to view entotympanic sulci (stereopair). In ventral views (A, B), note deep grooves on medial and lateral sides of ventral process of entotympanic for accommodation of internal carotid artery (1) and mandibular nerve (2), as well as incisures (3) on alisphenoid's ventral margin (facing basicapsular fenestra). Route of internal carotid is best described as extratympanic, because it grooves rather than tunnels through entotympanic and does not actually touch promontorium. In dorsal views C and D, plane of slice passes through sulci for posttemporal and temporal vasculature, obscuring their relationship. Note entotympanic's dorsal process (4) projecting between squamosal and petrosal, to form a small part of
Fig. 1 in Giant rhinoceros beetle Golofa claviger (Linnaeus) (Coleoptera: Melolonthidae: Dynastini) is damaging North Brazilian oil palm plantations
Fig. 1. Golofa claviger on oil palm. A – specimens collected in the infested area; B – dead males of G. claviger sheltered on the rachis or stem angles of the young palm; C – adult male lying on a palm leaflet; D – ripped young frond; E and F – wedge-shaped cuts on young, not yet unfurled frond; G – ripped unfurled frond.
Figure 3 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam
Figure 3. Capture rates (mean ± SE) of beetle caught in double-vaned bucket. UV = trap equipped with UV LED diodes, RL = trap with reduced release rate of oryctalure, SL = trap with standard release rate of oryctalure. Comparisons of mean trap capture between traps with and without UV light and between traps with different oryctalure release rates are shown at right. Bars with different letters indicate significantly different means (UV light: t-test, Lure: ANOVA, Tukey's HSD).
Figure 4 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam
Figure 4. Capture rate as a function of oryctalure release rate for traps without (A) and with (B) ultraviolet light emitting diodes. UV = trap equipped with UV LED diodes, RL = trap with reduced release rate of oryctalure, SL = trap with standard release rate of oryctalure. Lines are ordinary least-squares fits. The equation for traps without UV LEDs is y = 0.0059 + 0.0015x; slope is not significantly different from zero (P = 0.118). The equation for traps with UV LEDs is y = 0.0182 + 0.0070x; slope is significantly different from zero (P = 0.005).
Figure 2. Reduced release rate pheromone dispenser. A 2 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam
Figure 2. Reduced release rate pheromone dispenser. A 2 mm hole in the tops of the Eppendorf centrifuge tube allows a slow release of the attractant oryctalure. The bottle shown acts as a rain and wind shield. This entire release device is placed within a bucket trap for field deployment.
Figure 1 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam
Figure 1. Trap line locations, from north to south, were located at the University of Guam Agricultural Experiment Station in Yigo, the GICC Golf Course in Dededo, the Temple Baptist Church in Chalan Pago, the Leo Palace Golf Course in Yona, the Windward Hills Golf Course in Yona, and the Chargalauf Farm in Inarajan. An on-line interactive version of this map is available at https://github.com/ aubreymoore/CRB- trapimprovement/ blob/master/map.geojson.
Rhinoceros statue
[Original HR object](https://skfb.ly/JMsE) (314k tris tris) by [MGD Films](https://sketchfab.com/magadan).  # Process * The initial mesh was remeshed to quads (23k) with [Instant meshes](http://igl.ethz.ch/projects/instant-meshes/), to keep the main topology features. * That object was then remeshed with [mmgs](https://www.mmgtools.org/), by marking in the blender add-on the sharp edges. * The tail and horns were remeshed separately before being merged with the lowpoly model (12k total). * The ears were remeshed separately, but not merged.  # Material The material was created from a mix of different metals and rusts, and baked to the lowpoly version on 2k textures with the blender add-on.  *Blueprint*  Source: Objaverse 1.0 / Sketchfab
Tooth of a Woolly Rhinoceros
This is a tooth of the Woolly Rhinoceros (Coelodonta antiquitatis) from the Pleistocene deposits at Kents Cavern, Torquay, Devon. Source: Objaverse 1.0 / Sketchfab
Magnetic Resonance Imaging Scan of a Black Rhinoceros (Diceros Bicornis)
<p>Magnetic Resonance Imaging Scan of a Black Rhinoceros (Diceros Bicornis) from http://braincatalogue.org/Black_rhinoceros</p>
The tooth of a rhinoceros
https://drive.google.com/file/d/11ON9IstYqmoMMCCa6ovz0v4o5IKsgsgB/view?usp=sharing Это зуб носорога из Палеонтологического музея ВГУ. Source: Objaverse 1.0 / Sketchfab
Data from: The burning question: does fire affect habitat selection and forage preference of the black rhinoceros Diceros bicornis in East African savannahs?
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Data from: Genetic-environment associations explain genetic differentiation and variation between western and eastern North Pacific Rhinoceros Auklet (Cerorhinca monocerata) breeding colonies
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rhinoceros auklet microsatellite data
<p>We tested the hypothesis that segregation in wintering areas promotes population differentiation in a sentinel North Pacific seabird, the rhinoceros auklet (<i>Cerorhinca monocerata</i>). We collected tissue samples for genetic analyses on five breeding colonies in the western Pacific Ocean (Japan) and 13 in the eastern Pacific Ocean (California to Alaska), and deployed light-level geologgers on 12 eastern Pacific colonies to delineate wintering areas. Loggers were deployed previously on one colony in Japan. There was strong genetic differentiation between populations in the eastern vs. western Pacific. Deep-ocean habitat along the northern continental shelf appears to act as a barrier to dispersal; abundant in the western and eastern Pacific Ocean, the rhinoceros auklet is virtually absent as a breeder in the Aleutian Islands and Bering Sea, and no loggered birds crossed the North Pacific in the non-breeding season. Late Pleistocene glaciation over the North Pacific also might have forced a southward range shift that isolated the western and eastern populations. While genetic differentiation was strongest between the eastern vs. western Pacific, there was also extensive differentiation within both regional groups. In pairwise comparisons among eastern Pacific colonies, the standardized measure of genetic differentiation (F'<sub>ST</sub>) was negatively correlated with the extent of spatial overlap in wintering areas. That result supports the hypothesis that segregation in the non-breeding season promotes genetic structuring. Strong natal philopatry and a neritic foraging habit probably also play roles. Widely distributed, vulnerable to anthropogenic stressors, and exhibiting extensive genetic structure, the rhinoceros auklet encompasses the scope of the conservation challenges posed by seabirds.</p>
Data from: Using drones and sirens to elicit avoidance behaviour in white rhinoceros as an anti-poaching tactic
Poaching fuelled by international trade in horn caused the deaths of over 1000 African rhinoceros (Ceratotherium simum and Diceros bicornis) per year between 2013 and 2017. Deterrents, which act to establish avoidance behaviours in animals, have the potential to aid anti-poaching efforts by moving at-risk rhinos away from areas of danger (e.g. near perimeter fences). To evaluate the efficacy of deterrents, we exposed a population of southern white rhinos (C. simum simum) to acoustic- (honeybee, siren, turtledove), olfactory- (chilli, sunflower) and drone-based stimuli on a game reserve in South Africa. We exposed rhinos to each stimulus up to four times. Stimuli were considered effective deterrents if they repeatedly elicited avoidance behaviour (locomotion away from the deterrent). Rhinos travelled significantly further in response to the siren than to the honeybee or turtledove stimulus, and to low altitude drone flights than to higher altitude flights. We found the drone to be superior at manipulating rhino movement than the siren due to its longer transmission range and capability of pursuit. In contrast, the scent stimuli were ineffective at inciting avoidance behaviour. Our findings indicate that deterrents are a prospective low-cost and in situ method to manage rhino movement in game reserves.
Data from: Extinctions, genetic erosion and conservation options for the black rhinoceros (Diceros bicornis)
The black rhinoceros is again on the verge of extinction due to unsustainable poaching in its native range. Despite a wide historic distribution, the black rhinoceros was traditionally thought of as depauperate in genetic variation, and with very little known about its evolutionary history. This knowledge gap has hampered conservation efforts because hunting has dramatically reduced the species' once continuous distribution, leaving five surviving gene pools of unknown genetic affinity. Here we examined the range-wide genetic structure of historic and modern populations using the largest and most geographically representative sample of black rhinoceroses ever assembled. Using both mitochondrial and nuclear datasets, we described a staggering loss of 69% of the species' mitochondrial genetic variation, including the most ancestral lineages that are now absent from modern populations. Genetically unique populations in countries such as Nigeria, Cameroon, Chad, Eritrea, Ethiopia, Somalia, Mozambique, Malawi and Angola no longer exist. We found that the historic range of the West African subspecies (D. b. longipes), declared extinct in 2011, extends into southern Kenya, where a handful of individuals survive in the Masai Mara. We also identify conservation units that will help maintain evolutionary potential. Our results suggest a complete re-evaluation of current conservation management paradigms for the black rhinoceros.
Data from: Microwear-mesowear congruence and mortality bias in rhinoceros mass death assemblages
Although we do not know the cause of death of most fossils, mortality is often associated with ecological stress due to seasonality and other stochastic events (storms, volcanism) that may have caused shifts in feeding ecology preceding death. In these instances, dental microwear, which reflects feeding ecology in a narrow window of time, may provide a biased view of diet. Mesowear, another dental wear proxy based on the morphology of worn cusps, requires macroscopic amounts of dental wear and reflects diet for a longer interval and may be less prone to bias from near-death ecological stress. We compared congruence between microwear and mesowear of North American fossil rhinocerotid mass death assemblages and hunted collections of modern rhinocerotids to test the hypothesis that fossil assemblages yield more incongruous microwear and mesowear results as a result of near-death ecological disturbances. In extant rhinos, both microwear and mesowear are associated with diet and height of the feeding environment. Mesowear and microwear in the modern rhinocerotid collections are statistically correlated with strong relationships between average mesowear scores and labially distributed dental microwear. In contrast, a statistical relationship between mesowear and microwear was not observed among the fossil rhinocerotid assemblages. Mesowear suggests the fossil rhinos had low abrasion diets, suggesting they fed from clean, possibly tall vegetation. Some, but not all mass death assemblages produce microwear data with excessive scratches and/or pits compared to expectations based on mesowear results, suggesting that dental microwear was altered shortly before death in some but not all of the fossil assemblages. The dental wear proxies available to paleoecologists provide a mosaic of dietary evidence reflecting diet over long (mesowear) and more abbreviated (microwear) periods of time that, together, provide a richer understanding of feeding ecology and its relationship to environment, seasonal change, and other ecological disturbances.
Data from: Genetic structure of the black rhinoceros (Diceros bicornis) in south-eastern Africa
Despite an on-going struggle to conserve the endangered black rhinoceros (Diceros bicornis) since the 1980's, huge capital investment and several genetic surveys, the level of genetic structure and connectivity among populations in southern Africa is not well understood. Here, we undertake a major population genetic study of black rhinoceros in the Zimbabwe Lowveld, an area inhabited by over half of that country's original Zambezi descendants plus one large population sourced from the relict KwaZulu stock of South Africa. Using nuclear microsatellite and mitochondrial DNA data, we found much higher levels of genetic diversity in the indigenous Zimbabwean populations, where observed multilocus heterozygosity was 0.54 vs 0.40 in KwaZulu, and maternal haplotype diversity was 0.77 vs 0.03. We show, for the first time, that both gene pools can be differentiated from each other on the basis of nuclear markers. This, along with the discovery of recent gene flow between all Lowveld populations, suggests that Zimbabwean and South African gene pools were prehistorically connected.
Rhinoceros Jaw
# SHCMS:G.15218 **Rhinoceros sp.** Lower jaw of an extinct type of Rhinoceros from the Siwalik hills of northern India. Age: approx 2.5 - 5 million years. Length 26cm Width 17cm Depth 7.5cm. Imaged using a canon 5DS R and Stackshot 3x with turntable to provide 108 images which were then processed using agisoft photoscan at high levels. If you like this model or any others we produce we'd love to hear from you and how you've used them. Source: Objaverse 1.0 / Sketchfab
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