Germán Montoya-Sanhueza

Germán Montoya-Sanhueza
University of South Bohemia in České Budějovice · Faculty of Science

Doctor of Philosophy

About

23
Publications
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Citations
Introduction
I study skeletal adaptation in mammals, focusing on bone growth patterns, and functional implications on development. Currently, I focus on the musculoskeletal system of subterranean African molerats (Bathyergidae), where I integrate morphometry (2D and 3D), allometric analysis, histomorphometry, bone microstructure and video recordings of of live specimens to uncover differential patterns of fossorial adaptation.

Publications

Publications (23)
Article
Full-text available
Eggs, larvae and juveniles stages of the Chilean native freshwater fish are practically unknown. To know their seasonality, morphology and habitat use is relevant to understand their biology and to allow the conservation of this highly threatened ichthyofauna. Likewise, the early stages of fish's life cycle are highly labile and their success deter...
Article
Full-text available
RESUMEN La relación longitud-peso y el factor de condición (K) son descriptores de gran interés en la biología de poblaciones de peces, ya que aportan información fundamental sobre estrategias de crecimiento, estado nutricional y reproducción. También son parámetros ampliamente utilizados para comparar la condición de poblaciones que habitan en sis...
Article
Full-text available
Life underground has constrained the evolution of subterranean mammals to maximize digging performance. However, the mechanisms modulating morphological change and development of fossorial adaptations in such taxa are still poorly known. We assessed the morpho-functional diversity and early postnatal development of fossorial adaptations (bone super...
Article
Full-text available
The proximal femoral morphology in rodents of different body sizes, locomotor modes, and from the three main rodent lineages (Sciuromorpha, Myomorpha, and Hystricomorpha) exhibit a separated condition of the femoral head and greater trochanter. We assessed the femoral ossification of eight species of all six genera of a subterranean lineage of mamm...
Article
Despite recent efforts, the diversity of Neogene mammals in Chile remains poorly known, with several presumed new taxa awaiting description. For example, previous studies have suggested that the early to late Miocene mammalian assemblages from the Laguna del Laja fossiliferous locality (Cura-Mallín and Trapa-Trapa formations), in the Andean Cordill...
Article
Full-text available
The pattern of bone remodeling of one of the most peculiar mammals in the world, the naked mole‐rat (NMR), was assessed. NMRs are known for their long lifespans among rodents and for having low metabolic rates. We assessed long‐term in vivo bone labeling of subordinate individuals, as well as the patterns of bone resorption and bone remodeling in a...
Article
Full-text available
Lacking fur, living in eusocial colonies and having the longest lifespan of any rodent, makes naked mole‐rats (NMRs) rather peculiar mammals. Although they exhibit a high degree of polymorphism, skeletal plasticity are considered a novel model to assess the effects of delayed puberty on the skeletal system, scarce information on their morphogenesis...
Article
Full-text available
Background: Subterranean mammals show a suite of musculoskeletal adaptations that enables efficient digging. However, little is known about their development. We assessed ontogenetic changes in functionally relevant skeletal traits, and ossification patterns (periosteal and endochondral bone modules) in a truly subterranean scratch-digging rodent,...
Article
Full-text available
The patterns of bone modeling and mineral mobilization (skeletal homeostasis) among mammals other than humans and laboratory rodents are still poorly known. In this study we assessed the pattern of bone formation and bone resorption in the femur of a wild population of Cape dune molerats, Bathyergus suillus ( n = 41) (Bathyergidae), a solitary subt...
Data
Histomorphometric and microanatomical measurements of cortical bone used in this study (see text).
Conference Paper
Full-text available
Libro de resumenes de la I reunion de paleontología de vertebrados, Santiago, Chile. 2017. Pagina 42.
Article
Until now, only one Cenozoic fossil mammal from the Chilean Precordillera (Arica and Parinacota Region) has been reported, Caraguatypotherium munozi (Mesotheriidae: Notoungulata). In this study, we describe a fourth specimen of C. munozi and a new armadillo species, Epipeltephilus caraguensis (Peltephilidae: Cingulata), both collected from a new si...
Article
Full-text available
Patterns of bone development in mammals are best known from terrestrial and cursorial groups, but there is a considerable gap in our understanding of how specializations for life underground affect bone growth and development. Likewise, studies of bone microstructure in wild populations are still scarce, and they often include few individuals and t...
Article
Full-text available
presente trabajo fue dar a conocer y describir los resultados de intensivos muestreos (465 días) destinados a encontrar los primeros estadíos de las 14 especies nativas que habitan el río San Pedro (cuenca del Valdivia). Los muestreos se efectuaron desde octubre de 2005 a marzo de 2008. Se encontraron huevos, larvas y juveniles de Galaxias maculatu...
Article
Full-text available
The length-weight relationship and condition factor (K) are useful descriptors in population fish biology, because they provide essential information on growth strategies, nutritional status and reproduction. They are also parameters widely used to compare the condition of aquatic systems with varying degrees of human intervention. Therefore, under...
Article
Full-text available
Eggs, larvae and juveniles stages of the Chilean native freshwater fish are practically unknown. To know their seasonality, morphology and habitat use is relevant to understand their biology and to allow the conservation of this highly threatened ichthyofauna. Likewise, the early stages of fish's life cycle are highly labile and their success deter...
Article
Full-text available
The length-weight relationship and condition factor (K) are useful descriptors in population fish biology, because they provide essential information on growth strategies, nutritional status and reproduction. They are also parameters widely used to compare the condition of aquatic systems with varying degrees of human intervention. Therefore, under...

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Projects

Projects (2)
Project
Study the paleobiology of Caraguatypotherium munozi and its environmental context, a mesotherid from the North of Chile, that lived at the footsteps of the Chilean Altiplano about 11millions of years ago.
Project
Understand morphological changes related to digging behaviour