Results 31 to 40 of about 1,474 (223)

Signal categorization by foraging animals depends on ecological diversity

eLife, 2019
Warning signals displayed by defended prey are mimicked by both mutualistic (Müllerian) and parasitic (Batesian) species. Yet mimicry is often imperfect: why does selection not improve mimicry?
David William Kikuchi, Anna Dornhaus, Vandana Gopeechund, Thomas N Sherratt   +3 more
doaj   +1 more source

Telipogon peruvianus (Orchidaceae) Flowers Elicit Pre-Mating Behaviour in Eudejeania (Tachinidae) Males for Pollination. [PDF]

PLoS ONE, 2016
Several neotropical orchid genera have been proposed as being sexually deceptive; however, this has been carefully tested in only a few cases. The genus Telipogon has long been assumed to be pollinated by male tachinid flies during pseudocopulatory ...
Carlos Martel, Lianka Cairampoma, Fred W Stauffer, Manfred Ayasse   +3 more
doaj   +1 more source

A comparative study of the function of heterospecific vocal mimicry in European passerines

, 2007
Although heterospecific vocal imitation is well documented in passerines, the evolutionary correlates of this phenomenon are poorly known. Here, we studied interspecific variation in vocal mimicry in a comparative study of 241 European songbirds.
Eens, Marcel, Pavlova, Denitza, Avil\ue9s, Jes\ufas Miguel, Pavlova, D. Z., M\uf8ller, Anders Pape, Moller, A. P., Garamszegi, L\ue1szl\uf3, Eens, M., Garamszegi, László Zsolt, Aviles, J. M.   +9 more
core   +1 more source

Notes and Comments Predator Cognition Permits Imperfect Coral Snake Mimicry [PDF]

, 2020
: Batesian mimicry is often imprecise. An underexplored explanation for imperfect mimicry is that predators might not be able to use all dimensions of prey phenotype to distinguish mimics from models and thus permit imperfect mimicry to persist.
David W Pfennig, David W Kikuchi
core  

Chinese Blackbirds (Turdus mandarinus) mimic electric moped sounds with lower consistency and frequencies

Avian Research
Passerine mimics often imitate various vocalizations from other bird species and incorporate these sounds into their song repertoires. While a few anecdotes reported that wild songbirds imitated human-associated sounds, besides captive parrots and ...
Changjian Fu, Vishal Kumar Prasad, Xiaochun Wang, Zhongqiu Li   +3 more
doaj   +1 more source

Coaxially Electrospun Myocardial dECM‐ Based Nanofibrous Scaffolds Demonstrate Enhanced Cardiomyocyte Biocompatibility

Advanced Healthcare Materials, EarlyView.
Our coaxial electrospinning system is capable of incorporating decellularized myocardial extracellular matrix in a core‐sheath configuration, creating nanofibrous scaffolds. These scaffolds, in turn, support the maintenance of functional cardiomyocytes adhered to the surface of these bioactive scaffolds.
Dhanusha N. Rajapakse, Mahtab Khodadadi, Kiran M. Ali, Suh Hee Cook, Bryson T. Proctor, Tanya Upadhyay, Daxian Zha, Fatema Tuj Jahura, Marziyeh Boosaliki, Jessica M. Gluck   +9 more
wiley   +1 more source

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

Advanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang, Henry Robert Howard, Shihui Chen, Won‐Young Choi, Summer Cao, Arthur Chien, Kevin Zou, Michael Kassiou, Fabien Delerue, Ho Sang Jung, Yeonju Park, Young Mee Jung, Yong‐Dae Kwon, Karrie M. Kiang, Gilberto Ka‐Kit Leung, Ryohichi Sugimura, Ann‐Na Cho, Sang Jin Lee   +17 more
wiley   +1 more source

Functional Blood‐Brain Barrier Crossing by Biomimetic M13 Phage Vectors for Targeted Neuronal Delivery

Advanced Healthcare Materials, EarlyView.
This study investigates the M13 bacteriophage as a biomimetic nanovector capable of crossing in vitro models of the blood–brain barrier. By exploiting peculiar transcellular pathways, M13 avoids lysosomal degradation and preserves its structural integrity and functionality.
Silvia Vercellino, Lucia Pappagallo, Francesca De Chirico, Luca Boselli, Hazem Ahmed, Luca Spagnoletti, Giovanni Pittaluga, Paolo Emidio Costantini, Matteo Calvaresi, Pier Paolo Pompa, Alberto Danielli, Fabio Benfenati, Valentina Castagnola   +12 more
wiley   +1 more source

Variation in activity rates may explain sex-specific dorsal color patterns in Habronattus jumping spiders.

PLoS ONE, 2019
In many animals, color pattern and behavior interact to deceive predators. For mimics, such deception can range from precise (near-perfect mimicry) to only subtle resemblance (imperfect mimicry) and such strategies often differ by sex because of ...
Lisa A Taylor, Collette Cook, Kevin J McGraw   +2 more
doaj   +1 more source

Imperfections in transparency and mimicry do not increase predation risk for clearwing butterflies with educated predators. [PDF]

Ecol Evol
Abstract Transparency is an intuitive form of concealment and, in certain butterflies, transparent patches on the wings can contribute to several distinct forms of camouflage. However, perhaps paradoxically, the largely transparent wings of many clearwing butterflies (Ithomiini, Nymphalidae) also feature opaque, and often colorful ...
Yeager J, Robison A, Wade CD, Barnett JB.   +3 more
europepmc   +4 more sources