Results 61 to 70 of about 2,395,791 (239)

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

The Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani, Maria Pia Morigi, Matteo Bettuzzi, Monica Carosi   +3 more
wiley   +1 more source

Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes

The Anatomical Record, EarlyView.
Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield, Marco Camaiti, Lucy Roberts   +2 more
wiley   +1 more source

Individual‐level leaf trait variation and correlation across biological and spatial scales

Ecology and Evolution, 2021
Even with increasing interest in the ecological importance of intraspecific trait variation (ITV) for better understanding ecological processes, few studies have quantified ITV in seedlings and assessed constraints imposed by trade‐offs and correlations ...
Feng Jiang, Marc W. Cadotte, Guangze Jin
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

Tree and mycorrhizal fungal diversity drive intraspecific and intraindividual trait variation in temperate forests: evidence from a tree diversity experiment

<p>Scripts and dataset for Castro Sánchez-Bermejo et al., 2024 "Tree and mycorrhizal fungal diversity drive intraspecific and intraindividual trait variation in temperate forests: evidence from a tree diversity experiment"</p ...
Bruelheide, Helge, Castro Sánchez-Bermejo, Pablo, Ferlian, Olga, Proß, Tobias, Haider, Sylvia, Monjau, Tilo, Eisenhauer, Nico, Goldmann, Kezia, Ma, Zeqing   +8 more
core   +2 more sources

Developmental differences in cortical bone structure in chimpanzee and human femora reflect early locomotor independence in humans

The Anatomical Record, EarlyView.
Abstract The cortical bone structure of long bone diaphyses changes throughout growth via skeletal modeling and has important implications for bone strength and structural integrity. Ontogenetic trends in diaphyseal structure have been identified in both chimpanzees and humans but it is not yet clear how these trends compare given notable differences ...
Karen R. Swan, Rachel Ives, Zewdi J. Tsegai, Louise T. Humphrey   +3 more
wiley   +1 more source

Functional diversity and trait variation along an elevational gradient in a temperate mixed forest, northeast China

Global Ecology and Conservation
Functional diversity, a core component of biodiversity, reflects the variation in organismal traits that underlie ecosystem processes. Despite its importance, how functional diversity and trait variation across interspecific and intraspecific levels ...
Jingru Ge, Rongxia Zhang, Jinfeng Zhang, Junqing Li   +3 more
doaj   +1 more source

Image analysis of Moroccan carob seeds (Ceratonia siliqua L.) revealed substantial intraspecific variations depending on climate and geographic origin

Ecological Processes, 2022
Background The carob tree (Ceratonia siliqua L.) is one of the most iconic tree species of the Mediterranean region, with valuable economic, ecological and cultural value.
Jalal Kassout, Younes Hmimsa, Salama El Fatehi, Abdeltif El Ouahrani, Khalil Kadaoui, Soufian Chakkour, David Ariza-Mateos, Guillermo Palacios-Rodríguez, Rafael Navarro-Cerrillo, Mohammed Ater   +9 more
doaj   +1 more source

An illustration of incorporating intraspecific variation in tests of trait-based community assembly.

, 2016
In our analyses, we use three distinct trait based measures that should reflect underlying assembly mechanisms. Differences between the species pool (p) and sampled community (i) in the trait range, community weighted mean, and the standard deviation of ...
Yue-Hua Wang (473940), Lian-Ming Gao (128924), Marc William Cadotte (2915135), Kun Xu (116877), Jie Liu (15128), Ya-Huang Luo (3169215), Shao-Lin Tan (3169212), De-Zhu Li (128942)   +7 more
core   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source