Results 51 to 60 of about 61,462 (287)

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

The Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot, Rémi Laffont, Émilie Steimetz, Patricia Balaresque, Sébastien Couette   +4 more
wiley   +1 more source

Anthropogenic change decouples a freshwater predator’s density feedback

Scientific Reports, 2023
Intraspecific interactions within predator populations can affect predator–prey dynamics and community structure, highlighting the need to better understand how these interactions respond to anthropogenic change. To this end, we used a half-century (1969–
J. S. Sinclair, R. Briland, M. E. Fraker, J. M. Hood, K. T. Frank, M. D. Faust, C. Knight, S. A. Ludsin   +7 more
doaj   +1 more source

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

The Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source

Predators weaken prey intraspecific competition through phenotypic selection

Ecology Letters, 2020
Abstract Predators have a key role shaping competitor dynamics in food webs. Perhaps the most obvious way this occurs is when predators reduce competitor densities. However, consumption could also generate phenotypic selection on prey that determines the strength of competition, thus coupling consumptive and trait‐based effects of ...
Adam M. Siepielski, Adam Z. Hasik, Taylor Ping, Mabel Serrano, Koby Strayhorn, Simon P. Tye   +5 more
openaire   +3 more sources

Ideal Free Distributions, Evolutionary Games, and Population Dynamics in Multiple-Species Environments [PDF]

, 2004
In this article, we develop population game theory, a theory that combines the dynamics of animal behavior with population dynamics. In particular, we study interaction and distribution of two species in a two-patch environment assuming that individuals ...
Cressman, Ross, Garay, József, Křivan, Vlastimil   +2 more
core   +2 more sources

The tiger salamander as a promising alternative model organism to the axolotl for fracture healing and regenerative biology research

The Anatomical Record, EarlyView.
Abstract Scientists have been captivated by the ability to regenerate, focusing on uncovering the mechanisms of epimorphic regeneration and applying them to human medicine. The axolotl (Ambystoma mexicanum) has become the most intensively studied model in tetrapod regeneration research, particularly concerning limb regeneration.
Vivien Bothe, Nadia Fröbisch
wiley   +1 more source

Host-Parasitoid Model With Intraspecific Competitions

International Journal of Engineering & Technology, 2012
In this paper a discrete-time host-parasitoid model with intraspecific competitions is proposed. Phase portraits are drawn for different types of intraspecific competitions to notice the effects of intraspecific competitions for biologically reasonable range of parameter values.
Banshidhar Sahoo, Swarup Poria
openaire   +2 more sources

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

Inverse relationship between species competitiveness and intraspecific trait variability may enable species coexistence in experimental seedling communities

Nature Communications
Theory suggests that intraspecific trait variability may promote species coexistence when competitively inferior species have higher intraspecific trait variability than their superior competitors.
Jing Yang, Xiya Wang, Carlos P. Carmona, Xihua Wang, Guochun Shen   +4 more
doaj   +1 more source

Body Size and Symmetry Properties of Termite Soldiers Under Two Intraspecific Competition Scenarios

Frontiers in Ecology and Evolution, 2022
Single-piece nesting termites live and forage in the same piece of wood throughout their life, which limit their colony size. In certain species, more than one colony thrive in a given piece of wood (multicolonial substrate) and intraspecific competition
Daniel Aguilera-Olivares, Bárbara Torres-Guzmán, Alberto Arab, Luis Flores-Prado, Hermann M. Niemeyer   +4 more
doaj   +1 more source