Results 181 to 190 of about 143,183 (293)

Allometric patterns in Rhamphorhynchus muensteri and their role in the paleoecology, life habits, and taxonomic framework of pterosaurs

Journal of Anatomy, EarlyView.
The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira, João Lucas Da Silva, Ingmar Werneburg, Mario Bronzati, Alex Sandro Schiller Aires, Felipe L. Pinheiro, Rodrigo Temp Müller   +6 more
wiley   +1 more source

Evidence of Cheliped Autotomy and Regeneration in the Lower Miocene Crab <i>Achelous monspeliensis</i> From Portugal. [PDF]

Ecol Evol
de Carvalho CN, Marrecas P.
europepmc   +1 more source

Modelling compressive loading in large‐bodied mammals reveals distinct biomechanical strategies in proboscidean humeri

Journal of Anatomy, EarlyView.
Graviportal proboscideans differ in limb morphology, adopting slender or more robust long bone morphotypes. Finite element analyses (FEA) on extant and extinct taxa reveal functional differences between morphotypes, with robust humeri exhibiting lower peak stress under neutral and off‐axis loading.
Nicolas Ferdinand Wagner, Narimane Chatar, Jesse James Hennekam   +2 more
wiley   +1 more source

The impact of footwear on human talar trabecular architecture

Journal of Anatomy, EarlyView.
Medial and lateral views of the human foot skeleton in the shod and unshod groups, with color maps representing mean relative trabecular bone volume fraction (rBV/TV) in the talus for each group. The shod group exhibited greater rBV/TV in the medial and posterior talus, whereas the unshod group had greater rBV/TV in the talar head and neck.
Hannah N. Farrell, Andrea Luková, Sebastian Bachmann, Karley Spriggs, Alexander Synek, Dieter H. Pahr, Zewdi J. Tsegai   +6 more
wiley   +1 more source

Genetic Variation in Chemical Defence Affects Protection of an Herbivorous Insect Against Predation. [PDF]

Mol Ecol
Körnig J, Ortizo K, Woehle C, Greenhalgh R, Schielzeth H, Huettel B, Heckel DG, Dearing MD, Kaltenpoth M, Beran F.   +9 more
europepmc   +1 more source

Going silent? Evidence for independent losses of acoustic communication in tree crickets (Insecta, Orthoptera, Grylloidea, Oecanthidae)

Journal of Systematics and Evolution, EarlyView.
Our ancestral state reconstruction in tree crickets reveals multiple independent and irreversible losses of sound‐producing and ‐receiving structures, supporting the convergent evolution of the silent phenotype. We demonstrate strong evolutionary integration between forewings and tympana, although the discovery of ‘silent listeners′ and ‘deaf singers ...
Lucas Denadai de Campos, Jorge Alves Audino, Silvio Shigueo Nihei, Laure Desutter‐Grandcolas   +3 more
wiley   +1 more source

Context-dependent plant-bird interactions shape polychory across the antagonism-mutualism continuum. [PDF]

Commun Biol
Hernández-Brito D, Hiraldo F, Izquierdo-Palma J, Tella JL, Carrete M.   +4 more
europepmc   +1 more source

When One Matters More: Keystone Niche Individuals Shape Population‐Level Niches in Ectothermic Vertebrates

Journal of Zoology, EarlyView.
The recently proposed concept of Keystone Niche Individuals, that is, individuals that disproportionately influence their population's niche width, provides a framework to explore how individuals shape ecological niches. We applied this framework to a dataset of 482 salamanders across 21 populations and seven taxa to assess the prevalence and ...
Andrea Costa, Giacomo Rosa, Antonio Romano, Luca Roner, Emma Centomo, Sebastiano Salvidio   +5 more
wiley   +1 more source

Consequences of intraspecific predation

, 1991
Gabriel, Wilfried, Bosch, Frank van den
openaire   +1 more source

Mixed‐vertebrate pollination traits and pollinators of Haageocereus acranthus (Cactaceae) in a lomas desert ecosystem of coastal Peru

Plant Biology, EarlyView.
In a lomas desert ecosystem of coastal Peru, the columnar cactus Haageocereus acranthus shows traits and interactions consistent with a mixed‐vertebrate pollination system (hummingbirds and bats), with no detectable differences between flower colour morphotypes in either traits or interactions.
B. Garcia‐Simpson, B. A. Prado, J. J. Pellón, A. Valiente‐Banuet   +3 more
wiley   +1 more source