WorldCat Identities

Mundry, Roger

Overview
Works: 10 works in 12 publications in 2 languages and 25 library holdings
Roles: Author
Publication Timeline
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Most widely held works by Roger Mundry
Struktur und Einsatz des Gesanges bei Sprosser-Mischsängern (Luscinia luscinia L.) by Roger Mundry( )

2 editions published in 2000 in German and held by 15 WorldCat member libraries worldwide

Diving seabirds share foraging space and time within and among species by Juan Masello( )

2 editions published between 2010 and 2011 in English and held by 2 WorldCat member libraries worldwide

Audience effects, but not environmental influences, explain variation in gorilla close distance vocalizations : a test of the acoustic adaptation hypothesis by Daniela Hedwig( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

New evidence for self-medication in bonobos : manniophyton fulvum leaf- and stemstrip-swallowing from LuiKotale, Salonga National Park, DR Congo by Barbara Fruth( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Calculated reciprocity? : a comparative test with six primate species by Federica Amici( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Costly culture: differences in nut-cracking efficiency between wild chimpanzee groups( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Abstract : Cultural diversity among social groups has recently been documented in multiple animal species. Investigations of the origin and spread of diverse behaviour at group level in wild-ranging animals have added valuable information on social learning mechanisms under natural conditions. Behavioural diversity has been especially informative in the case of dispersal, where the transfer of individuals between groups leads to a sudden exposure to unfamiliar behaviour. Little is known, however, about the underlying costs and benefits of cultural transmission in animals and humans alike, as efficiency of cultural variants is often difficult to measure. The chimpanzees, Pan troglodytes, of the Taï National Park in Ivory Coast are known to exhibit a number of cultural differences between social groups, including hammer selection for nut cracking. This provides the unique opportunity to quantify the efficiency of cultural variants. We compared foraging speed and number of hits applied during nut-cracking events between three neighbouring chimpanzee groups. Our results showed significant differences in nut-cracking efficiency, caused by hammer material selection and differences in the applied power of impact per nut. Persistent behavioural coherence within the respective groups implies that immigrants adjust their behaviour to local nut-cracking techniques, even when individual foraging success might be compromised. This suggests that the benefit of belonging to a social group might outweigh the benefits of maximizing individual foraging efficiency. The differences in nut-cracking efficiency between chimpanzee groups add to the ever-growing body of cultural variants in wild chimpanzees and expand our knowledge of the importance of group belonging and conformity in wild chimpanzees. Highlights: Nut cracking efficiency differed between chimpanzee groups. Group-specific tool selection led to differences in nut intake rates. Neighbouring groups applied different strategies to open the nuts. Stone hammers were more efficient than wooden hammers
Modeling primate abundance in complex landscapes : a case study from the Udzungwa Mountains of Tanzania by Claudia Barelli( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Informing conservation management about structural versus functional connectivity : a case-study of Cross River gorillas by Inaoyom Imong( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Reconstruction of muscle fascicle architecture from iodine-enhanced microCT images: A combined texture mapping and streamline approach( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract: Skeletal muscle models are used to investigate motion and force generation in both biological and bioengineering research. Yet, they often lack a realistic representation of the muscle's internal architecture which is primarily composed of muscle fibre bundles, known as fascicles. Recently, it has been shown that fascicles can be resolved with micro-computed tomography (µCT) following staining of the muscle tissue with iodine potassium iodide (I2 KI). Here, we present the reconstruction of the fascicular spatial arrangement and geometry of the superficial masseter muscle of a dog based on a combination of pattern recognition and streamline computation. A cadaveric head of a dog was incubated in I2 KI and µCT-scanned. Following segmentation of the masseter muscle a statistical pattern recognition algorithm was applied to create a vector field of fascicle directions. Streamlines were then used to transform the vector field into a realistic muscle fascicle representation. The lengths of the reconstructed fascicles and the pennation angles in two planes (frontal and sagittal) were extracted and compared against a tracked fascicle field obtained through cadaver dissection. Both fascicle lengths and angles were found to vary substantially within the muscle confirming the complex and heterogeneous nature of skeletal muscle described by previous studies. While there were significant differences in the pennation angle between the experimentally derived and µCT-reconstructed data, there was congruence in the fascicle lengths. We conclude that the presented approach allows for embedding realistic fascicle information into finite element models of skeletal muscles to better understand the functioning of the musculoskeletal system. Graphical abstract: Highlights: Knowledge of fascicle architecture is crucial for detailed models to analyse skeletal muscle mechanics. Contrast-enhanced µCT-imaging resolves muscle fascicles. Pattern recognition and streamlines reconstruct spatial arrangement of fascicles. Comparison with fascicle lengths and pennation angles gained from cadaver dissection
Long-term temporal and spatial dynamics of food availability for endangered mountain gorillas in Volcanoes National Park, Rwanda by Cyril C Grueter( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

 
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.94 (from 0.89 for Costly cul ... to 0.99 for Audience e ...)

Languages
English (10)

German (2)