Results 61 to 70 of about 162,591 (293)

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]

open access: yes, 2013
Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas   +4 more
core   +2 more sources

Feeding ecology of two newt species (Triturus cristatus and Lissotriton vulgaris) during the reproduction season

open access: yesKnowledge and Management of Aquatic Ecosystems, 2013
The aim of this study was to provide an in-depth survey of feeding ecology and trophic interactions of two syntopic newt species (Triturus cristatus and Lissotriton vulgaris) inhabiting aquatic breeding habitats from the eastern Romanian Carpathian ...
Roşca I.   +3 more
doaj   +1 more source

BIOLOGY, ECOLOGY AND TROPHIC ECOLOGY OF COMMON KILKA CLUPEONELLA DELICATULA CASPIA SVETOV

open access: yesЮг России: экология, развитие, 2014
Long-term materials on ecology ordinary sprat are resulted.
M. M. Elizarenko   +2 more
doaj   +1 more source

Stable Isotopes Reveal the Dominant Species to Have the Widest Trophic Niche of Three Syntopic Microtus Voles

open access: yesAnimals, 2021
Diets and trophic positions of co-occurring animals are fundamental issues in their ecology, and these issues in syntopic rodents have been studied insufficiently.
Linas Balčiauskas   +5 more
doaj   +1 more source

Effects of climate on size structure and functioning of aquatic food webs [PDF]

open access: yes, 2010
In aquatic food webs, the role of body size is notoriously strong. It is also well known that temperature has an effect on body size. For instance, Bergmann’s rule states that body size increases from warm to cold climates.
Lacerot, G.
core  

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times

open access: yesScientific Reports, 2021
Stable isotope analyses of zooarchaeological material can be used to examine ecological variability in exploited species at centennial to millennial scales.
Guðbjörg Ásta Ólafsdóttir   +4 more
doaj   +1 more source

Beyond trophic morphology: stable isotopes reveal ubiquitous versatility in marine turtle trophic ecology. [PDF]

open access: yesBiol Rev Camb Philos Soc, 2019
ABSTRACTThe idea that interspecific variation in trophic morphology among closely related species effectively permits resource partitioning has driven research on ecological radiation since Darwin first described variation in beak morphology amongGeospiza.Marine turtles comprise an ecological radiation in which interspecific differences in trophic ...
Figgener C, Bernardo J, Plotkin PT.
europepmc   +4 more sources

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