Results 41 to 50 of about 1,142 (172)

Testing the 'toxin hypothesis of allergy': mast cells, IgE, and innate and acquired immune responses to venoms.

, 2015
peer reviewedWork in mice indicates that innate functions of mast cells, particularly degradation of venom toxins by mast cell-derived proteases, can enhance resistance to certain arthropod or reptile venoms.
Tsai, Mindy, Marichal, Thomas, Thomas Marichal, Starkl, Philipp, Stephen J Galli, Philipp Starkl, Galli, Stephen J., Mindy Tsai   +7 more
core   +1 more source

Host‐associated chemical cues mediating host‐finding behaviour in the larval ectoparasitoid Cephalonomia tarsalis

Pest Management Science, EarlyView.
Host‐associated volatiles mediate host location in Cephalonomia tarsalis, with faecal odours from fourth‐instar larvae, particularly 1‐pentadecene, attracting females and supporting the biological control of stored‐product pest beetles. Abstract BACKGROUND Understanding how parasitoids locate their hosts is essential for improving the effectiveness of ...
Lidia del Arco, Benjamin Fürstenau, Cristina Castañé, Jordi Riudavets   +3 more
wiley   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

Insect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean, Xim Cerdá, Jérôme Orivel, Frédéric Azémar, Alexander L. Wild, Bruno Corbara, Axel Touchard   +6 more
wiley   +1 more source

Persistence without prosperity at the upper range margin: Elevation, microhabitat buffering and biotic pressure in a range‐expanding spider

Ecological Entomology, EarlyView.
Anthropogenic linear features facilitate high‐elevation colonization. Parasitoid pressure declines markedly with elevation. Cocoon damage increases despite reduced parasitism at high elevation. Abstract The upper elevational range limits of thermophilic arthropods reflect constraints on population persistence rather than simple presence.
Zdeněk Vacek, Stanislav Korenko, Petr Heneberg   +2 more
wiley   +1 more source

She Doesn't Whisper: Female‐Prominent Stridulation Shaped by Morphology in a Buthid Scorpion and Insights on Its Function

Ethology, EarlyView.
Sexual dimorphism and stress‐induced stridulatory responses in Jaguajir rochae (Borelli, 1910). Females exhibited greater absolute pectinal size and higher sound pressure levels, whereas males showed higher pectinal allometric ratios relative to body size, lower sound frequencies, and shorter delta times.
Welton Dionisio‐da‐Silva, Natália Maria Câmara Luna, Patrício Adriano da Rocha, Rodrigo Hirata Willemart, Marcio Bernardino daSilva   +4 more
wiley   +1 more source

Epidemiological aspects of centipede (Scolopendromorphae: Chilopoda) bites registered in Greater S. Paulo, SP, Brazil

Revista de Saúde Pública, 1998
INTRODUCTION: The lack of basic knowledge on venomous arthropods and the benignity of the clinical manifestations contribute to the centipede bite victims' not being taken to a treatment reference center, leading to underestimation of the number of cases
Knysak Irene, Martins Rosana, Bertim Carlos R.   +2 more
doaj  

Ranakinestatin-PPF from the Skin Secretion of the Fukien Gold-Striped Pond Frog, Pelophylax plancyi fukienensis: A Prototype of a Novel Class of Bradykinin B2 Receptor Antagonist Peptide from Ranid Frogs

The Scientific World Journal, 2014
The defensive skin secretions of many amphibians are a rich source of bradykinins and bradykinin-related peptides (BRPs). Members of this peptide group are also common components of reptile and arthropod venoms due to their multiple biological functions
Jie Ma, Yu Luo, Lilin Ge, Lei Wang, Mei Zhou, Yingqi Zhang, Jinao Duan, Tianbao Chen, Chris Shaw   +8 more
doaj   +1 more source

Time‐calibrated relationships of a rare cave catfish (Trichomycterus rubbioli): Shedding light on troglobitic lifestyle origin in the Brazilian caatinga

Journal of Fish Biology, EarlyView.
Abstract Catfishes of the subfamily Trichomycterinae comprise the most diverse fish group with species adapted to live in Neotropical caves, but past evolutionary scenarios that have driven the origin of these troglobitic species remain unknown. We herein investigate the phylogenetic position of the cave‐restricted Trichomycterus rubbioli, endemic to ...
Wilson J. E. M. Costa, Paulo J. Vilardo, José Leonardo O. Mattos, Axel M. Katz, Valter M. Azevedo‐Santos, Pedro L. C. Uzeda, Rodrigo L. Ferreira   +6 more
wiley   +1 more source

Powerful proteins from polyp possessing predators [PDF]

, 2021
Cnidarians are soft bodied animals possessing complex venom systems which have evolved to allow for the capture of arthropod and vertebrate prey, as well as to defend themselves against such predators.
Robinson P.J., Trim, S.A., Trim, C.M.
core  

The complexity and structural diversity of ant venom peptidomes is revealed by mass spectrometry profiling

, 2015
Copyright © 2015 John Wiley & Sons, Ltd. Rationale Compared with other animal venoms, ant venoms remain little explored. Ants have evolved complex venoms to rapidly immobilize arthropod prey and to protect their colonies from predators and pathogens ...
Alain Dejean, Samira R. Aili, Koh, Jennifer,, Koh, JMS, Dejean, Alain, Koh, Jennifer, M S, Touchard, Axel, Orivel, J, Jérôme Orivel, Nicholson, Graham,, Orivel, Jérôme, Pierre Escoubas, Escoubas, P, Touchard, A, Axel Touchard, Jennifer M. S. Koh, Aili, SR, Nicholson, GM, Aili, Samira,, Aili, Samira, R, Graham M. Nicholson, Escoubas, Pierre, Nicholson, Graham, M, Dejean, A   +23 more
core   +1 more source