Results 81 to 90 of about 13,705 (251)

Marsupial Chromosome Evolution

open access: yes, 2019
Marsupial chromosomes were among the first mammalian chromosomes to be studied in the early twentieth century and have since been extensively characterised by multiple approaches.
Janine E Deakin   +1 more
core   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

The Australian Hydromyine Rodents—Their Interspecific Diversity and Reproductive Biology: A Review

open access: yesIntegrative Zoology, EarlyView.
There are two major groups, the Rattus species and the Hydromyini, in Australia. Clearly, the hydromyine rodents, unlike the Rattus genus, exhibit a diverse array of reproductive biological traits in both males and females, the full evolutionary significance of which has yet to be ascertained.
William G. Breed   +2 more
wiley   +1 more source

Microestructura cuticular y medular del pelo de guardia de mamíferos pequeños terrestres en la región de Arequipa, Perú

open access: yesRevista Peruana de Biología, 2019
Actualmente, el estudio de pelos de guardia está siendo utilizado en diversas áreas de las ciencias básicas y aplicadas (taxonomía, ecología, genética, paleontología, criminalística, entre otras), debido a su resistencia a factores físicos, químicos ...
Yasmy K. Medina   +2 more
doaj   +1 more source

Species Distribution Models Reveal the Resilience of Protected Areas for Conserving an Endemic Amazonian Canid

open access: yesAnimal Conservation, EarlyView.
This graphical abstract illustrates the impacts of climate change on the distribution of the Amazon‐endemic canid Atelocynus microtis, highlighting projected habitat loss under future scenarios (SSP2–4.5 and SSP5–8.5). Despite substantial reductions in suitable habitat, a significant proportion remains within Protected Areas, emphasizing their critical
Isabella Soares Moura Palha da Silva   +3 more
wiley   +1 more source

Antimicrobial Protection of Marsupial Pouch Young [PDF]

open access: yes, 2017
Marsupials diverged from eutherian mammals about 148 million years ago and represent a unique lineage of mammals with distinctive morphological and reproductive characteristics.
Yuanyuan Cheng   +3 more
core   +1 more source

The Evolution of Marsupial and Monotreme Chromosomes [PDF]

open access: yes, 2016
Marsupial and monotreme mammals fill an important gap in vertebrate phylogeny between reptile-mammal divergence 310 million years ago (mya) and the eutherian (placental) mammal radiation 105 mya.
Deakin, Janine   +2 more
core   +2 more sources

After the Fire, Hope Springs Eternal: Movements and Body Condition of Hermann's Tortoises in a Devastated Landscape

open access: yesAnimal Conservation, EarlyView.
Rapid assessment of the delayed impacts of fires on endangered species is essential for accurately guiding conservation efforts. After the fire, surviving Hermann's tortoises (Testudo hermanni) showed only minor behavior alterations, and burnt habitats continued to provide them with essential resources.
Clément Guénier   +12 more
wiley   +1 more source

Marsupial and Monotreme Enamel Structure [PDF]

open access: yes, 1986
We present some recent developments in our understanding of two basic questions: the origin, extent, nature and course of marsupial enamel tubules; and the characterisation of monotreme enamel, more particularly, the prismatic nature of platypus enamel ...
Lester, K. S.   +3 more
core   +1 more source

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