Results 81 to 90 of about 38,582 (266)

Mandible composition and properties in two selected praying mantises (Insecta, Mantodea)

The Anatomical Record, EarlyView.
Abstract Insects process their food with their cuticle‐based mouthparts. These feeding structures reflect their diversity and can, in some cases, showcase adaptations in material composition, mechanical properties, and shape to suit their specific dietary preferences.
Malo Roze, Stanislav N. Gorb, Timo Zeimet, Wencke Krings   +3 more
wiley   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

The Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo, T. Kubo, Ellen Schulz‐Kornas, T. M. Kaiser, Daniela E. Winkler   +4 more
wiley   +1 more source

Tooth row allometry in domestic rabbits and nondomestic lagomorphs: Evidence for a decoupling of body and tooth row size changes in evolutionary time

The Anatomical Record, EarlyView.
Domestic rabbits of different body sizes differ disproportionately in the length of their tooth row or the length of their diastema. Abstract In various domestic mammals, smaller breeds tend to have proportionally larger teeth, whereas this is not a universal trend across mammals.
Ursina L. Fasciati, Christine Böhmer, Stefanie Ohlerth, Marcus Clauss   +3 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

The Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source

Study of inland fisheries from Danube Delta - Romania [PDF]

Scientific Annals of the Danube Delta Institute, 2007
The average commercial fish catch decreased from about 12000 tons (1967 year), in Danube Delta lakes to around 3000 tons in the last years. In this period piscivorous species like pike, wels catfish, european perch declined and the non-piscivorous ...
CERNISENCU Irina, NĂVODARU Ion, STARAŞ Mircea, NASTASE Aurel, ALEXANDROV Mihaela-Laurenta   +4 more
doaj  

Timing is everything: Fishing‐season placement may represent the most important angling‐induced evolutionary pressure on Atlantic salmon populations

Ecology and Evolution, 2017
Fisheries‐induced evolution can change the trajectory of wild fish populations by selectively targeting certain phenotypes. For important fish species like Atlantic salmon, this could have large implications for their conservation and management.
Alison C. Harvey, Yongkai Tang, Vidar Wennevik, Øystein Skaala, Kevin A. Glover   +4 more
doaj   +1 more source

Statistical learning with proximity catch digraphs

, 2020
İstatistiksel öğrenme alanındaki yöntemlerin anlamlı bir çoğunluğu veriyi çizgeler olarak modellemektedir. Yakınlık çizgeleri gözetimli ve gözetimsiz istatistiksel öğrenme alanlarındaki pek çok probleme çözümler sunmaktadırlar. Bu çizgeler arasında sınıf örtüsü yakalama yönlü çizgeleri (SÖYYÇ) sınıf örtüsü problemini (SÖP) çözmek için tanıtılmıştır ...
openaire   +1 more source

Previously undocumented regional variability in crab‐eating macaque skull sexual dimorphism and its implications for biological and morphometric studies

The Anatomical Record, EarlyView.
Abstract In a large sample of adult crab‐eating macaques, we quantified sexual dimorphism in size, shape, and covariance across the whole skull and among anatomical regions of the cranium and mandible. All regions showed significant mean sex differences, but the magnitude of size and shape dimorphism varied substantially.
Andrea Cardini, Paul O'Higgins
wiley   +1 more source

The mechanism of labor in nonhuman primates: A look inside

The Anatomical Record, EarlyView.
Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley   +1 more source