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56 results for “mongoose”
Figure 1 in Systematics of the Southeast Asian mongooses (Herpestidae, Carnivora): solving the mystery of the elusive collared mongoose and Palawan mongoose
Figure 1. Phylogenetic tree obtained by BI analyses of a combined dataset of Cytb (1020 bp) and ND2 (277 bp). Bayesian Posterior Probabilities (BPP) values>0.9 are shown on the branches (for the main clades only). Urva javanica and Urva edwardsii were used as outgroups. Black bar: Urva brachyura from Borneo. Grey bar: U. brachyura from Peninsular Malaysia + Sumatra. Shaded bar: U. brachyura from Palawan (clustering with Urva semitorquata + Urva urva).
The dynamics of social cohesion in response to simulated intergroup conflict in banded mongooses
<p>Intergroup conflict is widespread in nature and is proposed to have strong impacts on the evolution of social behaviour. The conflict-cohesion hypothesis predicts that exposure to intergroup conflict should lead to increased social cohesion to improve group success or resilience in future conflicts. There is evidence to support this prediction from studies of affiliative responses to outgroup threats in some animal societies. However, most of these studies have focused on behavioural changes over short time periods (minutes and hours after exposure to an outgroup), and hence very little is known about the dynamics and durability of responses to intergroup conflict over the longer term. We investigated this question by simulating intergroup encounters in wild banded mongooses (Mungos mungo) and measuring social behaviour before, during, and after these encounters over a five day period. We also ran control trials with non-threatening stimuli. Banded mongooses reacted immediately to intrusion stimuli by vocalising, grouping together and advancing on the stimulus. In the first five minutes after simulated intrusions, we saw an elevation in grooming levels, but in the hour after exposure grooming rates declined sharply, contrary to our expectation. In the two subsequent days grooming rates remained at this depressed rate. In control trials, the initial increase in grooming was not seen, but grooming declined compared in the longer term time periods. Grooming changed across time, but not in the same pattern as during intrusions, suggesting that intrusions had an impact above and beyond that of the experimental set-up. The dynamics of grooming responses were short-lived and more complex than we initially expected. We suggest this unexpected result may be linked to the frequency of aggressive intergroup encounters in this system. Our results indicate short-lived impacts of outgroup threat on measures of social cohesion in this species, but cannot confirm longer term changes.</p>
Behavioural, demographic and fitness consequences of social instability in cooperatively breeding dwarf mongoose groups
<p><span>Social instability frequently arises in group-living species, but the potential costs</span> <span>have rarely been investigated in free-living cooperative breeders, especially across different timeframes.</span><span> Using natural observations, body-mass measurements and life-history data from dwarf mongooses (<em>Helogale</em> <em>parvula</em>), we determined the short- and longer-term consequences of a change in one of the dominant breeding pair. We found that a new breeder led to alterations in both collective and individual behaviour (i.e., increases in communal scent-marking, engagement in intergroup interactions, sentinel activity and within-group grooming), as well as reduced body-mass gain, further demographic changes and decreased reproductive success (i.e., fewer pups surviving to adulthood). The effects were particularly apparent when it was the female breeder who changed; new female breeders were younger than more experienced counterparts. Our findings support the idea that stability and cooperation are strongly linked and provide potential reasons for previously documented health and fitness benefits of social stability.</span></p>
Intrapopulation Variation in the Behavioural Responses of Dwarf Mongooses to Anthropogenic Noise
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Behavioural, demographic and fitness consequences of social instability in cooperatively breeding dwarf mongoose groups
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The dynamics of social cohesion in response to simulated intergroup conflict in banded mongooses
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Data from: Banded mongooses avoid inbreeding when mating with members of the same natal group
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Data from: Rival group scent induces changes in dwarf mongoose immediate behaviour and subsequent movement
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Data from: Kin discrimination via odour in the cooperatively breeding banded mongoose
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Data from: Wild dwarf mongooses produce general alert and predator-specific alarm calls
Many species produce alarm calls in response to predator threats. Whilst these can be general alert calls, some are urgency-based, indicating perceived threat level, some are predator-specific, indicating the predator type present, and some encode information about both urgency level and predator type. Predator-specific calls given to a narrow range of stimuli and which elicit a specific, adaptive, response from the receiver are termed functionally referential. Differing escape strategies, habitat structural complexity and sociality may favor the evolution of functionally referential calls. A study of one captive group of dwarf mongooses (Helogale parvula) suggested their alarm calls could transmit information about species, distance, and elevation of predators. Using recordings of natural predator encounters, predator presentations and audio playbacks, we investigated the alarm-call system in 7 wild dwarf mongoose groups. We recorded 11 different alarm-call types given to 9 stimulus categories. Of the 5 commonly emitted alarm-call types, 3 appeared to be non-specific and 2 predator-specific, given to aerial and terrestrial predators respectively. The remaining 6 call types were rarely produced. Furthermore, aerial alarms were given to a narrower range of stimuli than their terrestrial alarm calls, which were given to both visible terrestrial predators and secondary cues of predators. Unlike other mongoose species, dwarf mongoose seem to use the same alarm-call type for both physically present terrestrial predators and secondary cues of their presence. We argue that detailed knowledge of species' alarm-call systems under natural conditions can shed light on the evolutionary emergence of different types of alarm calls.
Figure 6 in Head morphology reflects the introduction history in a globally invasive carnivore-the small Indian mongoose
Figure 6. Disparity in cranial and mandibular shape.
Figure 4. Cranial and mandibular shape assignments from the k in Head morphology reflects the introduction history in a globally invasive carnivore-the small Indian mongoose
Figure 4. Cranial and mandibular shape assignments from the k-NN analyses.
Figure 3 in Head morphology reflects the introduction history in a globally invasive carnivore-the small Indian mongoose
Figure 3. Linear discriminant analyses of cranial and mandibular shape from the sampled localities.
FIG. 1 in SHORT COMMUNICATION Mungotictis decemlineata lineata (Carnivora: Herpestidae), a mysterious Malagasy mongoose
FIG. 1. Map of Madagascar showing locations referred to in the text.
Data from: Wild dwarf mongooses produce general alert and predator-specific alarm calls
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Data from: Reproductive competition triggers mass eviction in cooperative banded mongooses
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.