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FIGURE 7 in Small mammals of the mid-Araguaia River in central Brazil, with the description of a new species of climbing rat

FIGURE 7. Dorsal, ventral and lateral views of skull and mandible of Necromys lasiurus (female, UFES 1337).

FIGURE 12. A in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 12. A—Ventral spur of male trochanter IV of Atopomelus megalotis sp. n.; B—Same, Atopomelus locusta Trouessart; C—Hylomys megalotis Jenkins and Robinson (photo by Alexei V. Abramov); D—Laonastes aenigmamus Jenkins et al. at the hands of Alexei V. Abramov (photo by Alexey N. Tikhonov); E—Menetes berdmorei (Blyth) (photo by Alexei V. Abramov).

FIGURE 10 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 10. Pteromychirus menetes sp. n., male holotype: A—Dorsal view; B—Ventral view; C—Leg III in ventral view; D—Tibia and tarsus IV in ventral view. Scale bars: 100 μm = A, B; 25 μm = C, D.

FIGURE 7 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 7. Afrolistrophorus laonastes sp. n., female: A—Dorsal view; B—Ventral view; C—Tarsus III in ventrall view; D— Tarsus IV in ventral view. Scale bars: 100 μm = A, B; 25 μm = C, D.

FIGURE 8 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 8. Afrolistrophorus saxatilomys sp. n., male holotype. A—Dorsal view; B—Ventral view; C—Tarsus III in ventral view. Scale bars: 100 μm = A, B; 25 μm = C.

FIGURE 5 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 5. Atopomelus megalotis sp. n., female: A—Propodonotum in ventral view; B—Posterior end of idiosoma in lateral view; C—Median scales of hysterosoma; D—Vulva; E—Posterior part of coxal fields IV; F—Distal part of spermatheca; G— Tarsus III in ventral view. Scale bars: 100 μm = A, B; 50 μm = D, E; 25 μm = C, F, G.

FIGURE 2 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 2. Listrophoroides oconnori sp. n., female. A—Dorsal view; B—Ventral view; C— Tarsus III in ventral view; D— Tarsus IV in ventral view. Scale bars: 100 μm = A, B; 25 μm = C, D.

FIGURE 6 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 6. Afrolistrophorus laonastes sp. n., male holotype: A—Dorsal view; B—Ventral view; C—Tarsus III in dorsal view; D—Tarsus IV in ventral view. Scale bars: 100 μm = A, B; 25 μm = C, D.

FIGURE 11 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 11. Pteromychirus menetes sp. n., female: A—Dorsal view; B—Ventral view; C—Tarsus III in ventral view. Scale bars: 100 μm = A, B; 25 μm = C.

FIGURE 1 in Five new species of fur mites (Acariformes: Sarcoptoidea) from small mammals in Laos

FIGURE 1. Listrophoroides oconnori sp. n., male holotype. A—Dorsal view; B—Ventral view; C—Aedeagus; D—Tarsus III in ventral view; E—Tarsus IV in ventral view. Scale bars: 100 μm = A, B; 50 μm = C–E.

Fig. 6 in Newly described and already endangered: a new mammal species endemic to Corsica

Fig. 6. Portraits and hind feet (dorsal view) of an adult female M. nustrale sp. nov. caught near Bavella, in southern Corsica (left) and an adult female M. crypticus from the Jura mountains in Switzerland (right). Notice that the latter individual has a faint line bordering the lower lip, while the former has a much more conspicuous chin spot. Wing insertion to the outer toe is, however, identical in both species. For the left individual, the wing was not stretched while it was stretched for the right individual.

Fig. 3 in Newly described and already endangered: a new mammal species endemic to Corsica

Fig. 3. PCA showing (A) the clear separation between M. crypticus (Mcry; green circles) and M. nustrale sp. nov. individuals (Mnus; blue squares), and (B), the differentiation between populations within M. nustrale sp. nov. Horizontal and vertical axis explain 23.9 and 8.5% of the variance, respectively, in (A) and 17.1 and 13.9% of the variance in (B).

Fig. 1 in Newly described and already endangered: a new mammal species endemic to Corsica

Fig. 1. Topographic map of Corsica (France) showing the current records of M. nustrale sp. nov. on this Mediterranean island (Courtois et al., 2011; Groupe Chiroptères Corse, 2019). The black dots represent capture sites, while the red stars indicate the presence of lactating females, including those living in the only known nursery roost of Ghisoni. A double circle indicates the location where the holotype of M. nustrale sp. nov. was found. Shades of grey represent areas above 100 m a.s.l.

Fig. 5 in Newly described and already endangered: a new mammal species endemic to Corsica

Fig. 5. External characters of Myotis nustrale sp. nov. Panels are close-ups of the female holotype (MNHN-ZM-2023-12), except the lower right one which is a picture from a released adult individual (Photo © Yann Le Bris). The upper left panel illustrates the stiff hairs running along the uropatagium, viewed from below. The upper right panel is the right foot with wing insertion to the base of the outer toe, in ventral view. The lower left panel illustrates the long and straight tragus and unnotched ear of the female holotype. On the portrait of the live individual, notice the black chin spot on the lower lip.

Fig. 2 in Newly described and already endangered: a new mammal species endemic to Corsica

Fig. 2. Bayesian topology based on five partitioned nuclear introns (SLC38A7, ABHD11, ACOX2, COPS7A and ROGDI). The outgroup (Pipistrellus pipistrellus) is not shown. Bayesian posterior probabilities (BPP) <60 are not shown, neither are within species BPP values. The holotype of Myotis nustrale sp. nov. (sample number MNA008_CO_ALB) is indicated by a white arrow.

opencc-zeroDec 2021View details →

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Determining the efficacy of camera traps, live capture traps, and detection dogs for locating cryptic small mammal species

Metal box (e.g., Elliott, Sherman) traps and remote cameras are two of the most commonly employed methods presently used to survey terrestrial mammals. However, their relative efficacy at accurately detecting cryptic small mammals has not been adequately assessed. The present study therefore compared the effectiveness of metal box (Elliott) traps and vertically oriented, close range, white flash camera traps in detecting small mammals occurring in the Scenic Rim of eastern Australia. We also conducted a preliminary survey to determine effectiveness of a conservation detection dog (CDD) for identifying presence of a threatened carnivorous marsupial, Antechinus arktos, in present-day and historical locations, using camera traps to corroborate detections. 200 Elliott traps and 20 white flash camera traps were set for four deployments per method, across a site where the target small mammals, including A. arktos, are known to occur. Camera traps produced higher detection probabilities than Elliott traps for all four species. Thus, vertically mounted white flash cameras were preferable for detecting the presence of cryptic small mammals in our survey. The CDD, which had been trained to detect A. arktos scat, indicated in total 31 times when deployed in the field survey area, with subsequent camera trap deployments specifically corroborating A. arktos presence at 100% (3) indication locations. Importantly, the dog indicated twice within Border Ranges National Park, where historical (1980s-1990s) specimen-based records indicate the species was present, but extensive Elliott and camera trapping over the last 5-10 years have resulted in zero A. arktos captures. Camera traps subsequently corroborated A. arktos presence at these sites. This demonstrates that detection dogs can be a highly effective means of locating threatened, cryptic species, especially when traditional methods are unable to detect low-density mammal populations.

opennotspecifiedOct 2019View details →

One of the first cryptic mammal species discovered, when it was separated from the morphologically similar R. tumida (= R. bickhami) based on karyological studies. Karyotype of 2n = 42 of R. genowaysi is identical to that observed in R. velilla, but these species are genetically distinct; their ranges do not overlap. R. genowaysi is morphologically very similar to other species within the R. tumida complex and is sympatric with R. bickhami (2n = 34). Monotypic. Distribution. Two nearby localities in Pacific lowlands of S Chiapas, S Mexico. in Vespertilionidae

One of the first cryptic mammal species discovered, when it was separated from the morphologically similar R. tumida (= R. bickhami) based on karyological studies. Karyotype of 2n = 42 of R. genowaysi is identical to that observed in R. velilla, but these species are genetically distinct; their ranges do not overlap. R. genowaysi is morphologically very similar to other species within the R. tumida complex and is sympatric with R. bickhami (2n = 34). Monotypic. Distribution. Two nearby localities in Pacific lowlands of S Chiapas, S Mexico.

opencc-by-4.0Jun 2022View details →

Early postnatal individual vocal recognition in a highly colonial mammal species

Dataset associated with the article entitled 'Early postnatal individual vocal recognition in a highly colonial mammal species'

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Kruger National Park medium to large mammal species herd sizes & distances to the road - fieldwork data

The dataset consists of systematically recorded presences, from a vehicle, of medium to large mammal species within the Kruger National Park. There is 401 tar and 369 dirt road points within the dataset. Each dataset point has data on species presence, estimated proximity of the animals to the road and herd sizes. Each point also has the following data: estimated cloud cover percentage, surface wetness, rain, co-ordinates, vegetation biome (savanna), road surface, distance to the nearest natural water source and the total number of vehicles passing that point within a 10 minute period.

opencc-zeroSep 2022View details →