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27 results for “Alouatta”
Fig. 5. Trypanoxyuris kotudoi n in Pinworms of the red howler monkey (Alouatta seniculus) in Colombia: Gathering the pieces of the pinworm-primate puzzle
Fig. 5. Trypanoxyuris kotudoi n. sp. (A) Male full body, lateral view. (B) Male cephalic end, apical view. (C) Male posterior end, ventral view; (D) Male posterior end, lateral view, (E) Female full body, lateral view; (F) Female cephalic end, apical view; (G) Female cross section showing lateral alae; (H) Egg.
Fig. 6 in Pinworms of the red howler monkey (Alouatta seniculus) in Colombia: Gathering the pieces of the pinworm-primate puzzle
Fig. 6. SEM of buccal structures of males of Trypanoxyuris species found in howler monkeys (A) Trypanoxyuris seunimii n. sp. (B) T. keumimae n. sp. (C) T. kotudoi n. sp. (D) T. minutus from Alouatta seniculus. (E) T. pigrae. (F) T. minutus from Mesoamerican howler monkeys. R: right ventral lip; L: left ventral lip. White arrow pointing at the sharp protuberances formed as a result of the notches in the lips.
Fig. 4 in Pinworms of the red howler monkey (Alouatta seniculus) in Colombia: Gathering the pieces of the pinworm-primate puzzle
Fig. 4. SEM of buccal structures of females of Trypanoxyuris species found in howler monkeys (A) Trypanoxyuris seunimii n. sp. (B) T. keumimae n. sp. (C) T. kotudoi n. sp. (D) T. minutus from Alouatta seniculus. (E) T. pigrae. (F) T. minutus from Mesoamerican howler monkeys. R: right ventral lip; L: left ventral lip. White arrow pointing at the lateral indentations. Black arrow pointing at the square-shaped edge.
Fig. 3. Trypanoxyuris keumimae n in Pinworms of the red howler monkey (Alouatta seniculus) in Colombia: Gathering the pieces of the pinworm-primate puzzle
Fig. 3. Trypanoxyuris keumimae n. sp. (A) Female full body, lateral view. (B) Female cephalic end, apical view. (C) Male cephalic end, apical view, (D) Male full body, lateral view; (E) Male posterior end, lateral view, (F) Male posterior end, ventral view; (G) Female cross section showing lateral alae (H) Egg.
Fig. 2. Trypanoxyuris seunimii n in Pinworms of the red howler monkey (Alouatta seniculus) in Colombia: Gathering the pieces of the pinworm-primate puzzle
Fig. 2. Trypanoxyuris seunimii n. sp. (A) Female full body, lateral view. (B) Female cephalic end, apical view. (C) Male cephalic end, apical view, (D) Female cross section showing lateral ala; (E) Egg; (F) Male full body, lateral view; (G) Male posterior end, ventral view; (H) Male posterior end, lateral view.
Foraging behaviour data for sympatric Ateles geoffroyi, Alouatta palliata, and Cebus imitator
<p><span>Senses form the interface between animals and environments, and their form and function provide a window into the ecology of past and present species. However, research on the senses used during foraging (e.g. smell, vision, touch, taste) by wild terrestrial frugivores is sparse. Here, we combine 26,094 fruit foraging sequences recorded from three wild, sympatric primates (<em>Cebus imitator, Ateles geoffroyi, Alouatta palliata</em>) with data on within- and between-species variation in colour vision, olfaction, taste, and hand anatomy. We hypothesize that dietary and sensory specialization shape foraging behaviours. We find that frugivorous spider monkeys (<em>Ateles geoffroyi</em>) sniff fruits most often, that omnivorous capuchins (<em>Cebus imitator</em>), the species with the highest measure of manual dexterity, uses manual touch most often, and that main olfactory bulb volume is a better predictor of sniffing behaviour than nasal turbinate surface area. We also identify an interaction between colour vision phenotype and use of other senses. Controlling for species, dichromats sniff and bite fruits more often than trichromats, and trichromats use manual touch to evaluate cryptic fruits more often than dichromats. Our findings help reveal how dietary specialization and sensory variation shape foraging behaviours, and inform methods for investigating relationships between behaviour and anatomy.</span></p>
Supplementary material 2 from: Steinberg E, Nieves M, Mudry M (2014) Multiple sex chromosome systems in howler monkeys (Platyrrhini, Alouatta). Comparative Cytogenetics 8(1): 43-69. https://doi.org/10.3897/compcytogen.v8i1.6716
Supplementary Figure S. (doi: 10.3897/CompCytogen.v8i1.6716.app2) File format: Microsoft Word file (doc).:
Fig. 5 in Molecular characterization of trypanosomatid infections in wild howler monkeys (Alouatta caraya) in northeastern Argentina
Fig. 5. Agarose gel (2%) showing RibDNA-amplified fragments stained with ethidium bromide. Samples are indicated by their ID numbers. Reference strains were used as positive controls: TCI: T. cruzi I, TCII: T. cruzi II, and TR: T. rangeli. M: 1 kb DNA molecular ladder. Fragment size is indicated in base pairs.
Fig. 2 in Molecular characterization of trypanosomatid infections in wild howler monkeys (Alouatta caraya) in northeastern Argentina
Fig. 2. Study areas showing the locations of the sampled howler groups and the results of molecular analysis: groups with only RibDNA PCR-positive howler monkeys (gray circle); groups with RibDNA and kDNA-PCR-positive howler monkeys (white circle); groups with RibDNA, kDNA, and SatDNA-PCR-positive howler monkeys positive (black circle). A: Isla Brasilera (IB) and Isla del Cerrito (IC); B: San Cayetano (SC) and Estacíon Bioĺogica de Corrientes (EBCo).
Fig. 1 in Molecular characterization of trypanosomatid infections in wild howler monkeys (Alouatta caraya) in northeastern Argentina
Fig. 1. Location of study areas in Northeastern Argentina: San Cayetano (SC), Estacíon Bioĺogica Corrientes (EBCo), Isla Brasilera (IB) and Isla del Cerrito (IC).
Fig. 3 in Molecular characterization of trypanosomatid infections in wild howler monkeys (Alouatta caraya) in northeastern Argentina
Fig. 3. Size variation of amplified kDNA fragments revealed by electrophoresis and ethidium bromide staining. Samples are indicated by their ID numbers. Reference strains used as positive controls: TR1 and TR2: T. rangeli, k98: T. cruzi I, ClBr: T. cruzi VI (Cl Brener). M: 1 kb DNA molecular ladder. Fragment size is indicated in base pairs.
Fig. 1. A in Seasonality, richness and prevalence of intestinal parasites of three neotropical primates (Alouatta seniculus, Ateles hybridus and Cebus versicolor) in a fragmented forest in Colombia
Fig. 1. A. Trichuris sp., B. Oxyuridae, C. Ancylostomatidae, D. Strongyloides sp. (larva), E. Ascarididae, F. Gnathostomatidae, G. Trichostrongylidae, H-I. Trematodes, J. Entamoeba sp. (cyst), K. Acanthocephala, L. Balantidiidae.
Fig. 2 in Successful treatment of Trypanoxyuris sp. infection in naturally infected southern brown-howlers (Alouatta guariba clamitans)
Fig. 2. Trypanoxyuris sp. morphology. a) Male specimen; b) Male anterior region; c) Male posterior region, d) Female anterior region. (E = esophagus; EB = esophageal bulb; CT = curved tail; DL = dorsal lips; SCCA = single-crested cephalic alae; S = spicule; CA = caudal appendix; DCCA = double-crested cephalic alae).
Fig. 1 in Successful treatment of Trypanoxyuris sp. infection in naturally infected southern brown-howlers (Alouatta guariba clamitans)
Fig. 1. Trypanoxyuris sp. fecal egg count before and after the administration of pyrantel pamoate & praziquantel (Howler 1) and Albendazole (Howler 2).
Foraging behaviour data for sympatric Ateles geoffroyi, Alouatta palliata, and Cebus imitator
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Dispersal patterns in black howler monkeys (Alouatta pigra): Integrating multi-year demographic and molecular data
<p>Dispersal is a fundamental process in the functioning of animal societies as it regulates the degree to which closely related individuals are spatially concentrated. A species' dispersal pattern can be complex as it emerges from individuals' decisions shaped by the cost-benefit tradeoffs associated with either remaining in the natal group or dispersing. Given the potential complexity, combining long-term demographic information with molecular data can provide important insights into dispersal patterns of a species. Based on a 15-year study that integrates multi-year demographic data on six groups with longitudinal and cross-sectional genetic sampling of 20 groups (N=169 individuals, N=21 polymorphic microsatellite loci), we describe the various dispersal strategies of male and female black howler monkeys (<i>Alouatta pigra</i>) inhabiting Palenque National Park, Mexico. Genetically confirmed dispersal events (N=21 of 59 males; N=6 of 65 females), together with spatial autocorrelation analyses revealed that the dispersal pattern of black howlers is bisexual with strong sex-biases in both dispersal rate (males disperse more often than females) and dispersal distance (females disperse farther than males). Observational and genetic data confirm that both males and females can successfully immigrate into established groups, as well as form new groups with other dispersing individuals. Additionally, both males and females may disperse singly, as well as in pairs, and both may also disperse secondarily. Overall, our findings suggest multiple dispersal trajectories for black howler males and females, and longer multi-year studies are needed to unravel which demographic, ecological, and social factors underlie individuals' decisions about whether to disperse and which dispersal options to take.</p>
Supplementary material 1 from: Steinberg E, Nieves M, Mudry M (2014) Multiple sex chromosome systems in howler monkeys (Platyrrhini, Alouatta). Comparative Cytogenetics 8(1): 43-69. https://doi.org/10.3897/compcytogen.v8i1.6716
Data matrix. (doi: 10.3897/CompCytogen.v8i1.6716.app1) File format: Microsoft Word file (doc).:
Dispersal patterns in black howler monkeys (Alouatta pigra): Integrating multi-year demographic and molecular data
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Data from: Successional loss of two key food tree species best explains decline in group size of Panamanian howler monkeys (Alouatta palliata)
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Data from: Crop feeding by brown howlers (Alouatta guariba clamitans) in forest fragments: the conservation value of cultivated species
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.