Results 41 to 50 of about 2,101 (193)

Impact of Female Mating Status on Male Courtship Behaviour in a Sexually Cannibalistic New Zealand Fishing Spider

Ethology, Volume 132, Issue 6, Page 373-384, June 2026.
Scoring of male courtship behaviour in Dolomedes minor revealed no effect of female mating status on courtship duration or sequence structure, but males delayed the initiation of courtship when encountering previously mated females. ABSTRACT The evolution of male courtship rituals has traditionally been attributed to female mate selection, but may also
Bastien E. Clémot, Simon J. Connolly, Christina J. Painting   +2 more
wiley   +1 more source

First case of human latrodectism in Venezuela Primeiro caso de latrodectismo humano na Venezuela

Revista da Sociedade Brasileira de Medicina Tropical, 2008
The first case of envenoming by Latrodectus geometricus in Venezuela is described. The accident occurred at the victim's home, in Aragua de Barcelona, Anzoátegui State.
Demetrio Kiriakos, Paola Núñez, Yasmely Parababire, Marianne García, Jenny Medina, Leonardo De Sousa   +5 more
doaj   +1 more source

Sperm Transfer Under Behavioral and Morphological Constraints in the Orb‐Web Spider Genus Argiope

Integrative Zoology, Volume 21, Issue 3, Page 485-498, May 2026.
The polygamous mating system of the orb‐web spider genus Argiope provides a model to study the evolution of sperm transfer under morphological and behavioral constraints. This helps us to understand how male and female behavioral and morphological reproductive traits influence sperm transfer.
Chathuranga Dharmarathne, Donald J. McLean, Peter Michalik, M. E. Herberstein   +3 more
wiley   +1 more source

An Easy Method to Sample Headspace Pheromones in the Field

Ethology, Volume 132, Issue 5, Page 365-371, May 2026.
Females of the orb‐web spider Argiope bruennichi produces a pheromone to attract males for mating. Most of our knowledge about the pheromone and its strategical use by the females is known from the laboratory. While we have confidence in the validity of these results, we wanted to make sure and measure pheromones in the field.
Zoe Dössel, Katharina Weiss, Jutta M. Schneider   +2 more
wiley   +1 more source

Envenomation by an arachnid (Latrodectus or Steatoda): Case report involving a woman and her female dog

Case Reports, 2020
Introduction: Accidents involving spiders bites usually cause mild medical reactions that lead to local symptoms and, less commonly, systemic effects. The most medically significant spiders belong to the genera Latrodectus and Loxosceles.
Julián Felipe Porras-Villamil, Mario Javier Olivera, Ángela Catalina Hinestroza-Ruiz, Gabriela Andrea López-Moreno   +3 more
doaj   +1 more source

Isolation and characterization of vNAR-type neutralizing antibodies from α-latrotoxin in Latrodectus mactans spider venom

, 2021
El envenenamiento derivado del ataque de arañas, es un acontecimiento que siempre ha preocupado al ser humano. En México, Latrodectus mactans (o viuda negra) es una de las especies de araña de mayor importancia debido a la severidad de los síntomas ...
JORGE GERARDO ITZAE AVENDAÑO AGUIRRE
core  

Latrodectismo. Caso clínico y revisión de la literatura

ARS Medica, 2017
El latrodectismo es un cuadro clínico causado por la mordedura de una araña del género Latrodectus spp., ampliamente distribuido en todo Chile continental. Generalmente las mordeduras se asocian a faenas agrícolas.
Oscar Felipe Corsi Sotelo, Esteban Del Río Otto, Arturo Peña Riveros, David Acuña Ramírez   +3 more
doaj   +1 more source

Discovery of a Recombinant Human Monoclonal Immunoglobulin G Antibody Against α-Latrotoxin From the Mediterranean Black Widow Spider (Latrodectus tredecimguttatus)

Frontiers in Immunology, 2020
Widow spiders are among the few spider species worldwide that can cause serious envenoming in humans. The clinical syndrome resulting from Latrodectus spp.
Sofie Føns, Line Ledsgaard, Maxim V. Nikolaev, Alexander A. Vassilevski, Alexander A. Vassilevski, Christoffer V. Sørensen, Manon K. Chevalier, Michael Fiebig, Andreas H. Laustsen   +8 more
doaj   +1 more source

Why we age

Biological Reviews, Volume 101, Issue 2, Page 911-925, April 2026.
ABSTRACT Three categories of explanations exist for why we age: mechanistic theories, which omit reference to evolutionary forces; weakening force of selection theories, which posit that barriers exist that prevent evolutionary forces from optimising fitness in ageing; and optimisation theories, which posit that evolutionary forces actually select for ...
Michael S. Ringel
wiley   +1 more source

latrodectus

, 1970
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source