Ecology of a bolas spider, Mastophora hutchinsoni: phenology, hunting tactics, and evidence for aggressive chemical mimicry

Oecologia ◽  
1988 ◽  
Vol 74 (4) ◽  
pp. 524-530 ◽  
Author(s):  
Kenneth V. Yeargan
1996 ◽  
Vol 22 (1) ◽  
pp. 75-89 ◽  
Author(s):  
Kenneth F. Haynes ◽  
Kenneth V. Yeargan ◽  
Jocelyn G. Millar ◽  
Bonnie B. Chastain

Chemoecology ◽  
2002 ◽  
Vol 12 (2) ◽  
pp. 99-105 ◽  
Author(s):  
K. F. Haynes ◽  
C. Gemeno ◽  
K. V. Yeargan ◽  
J. G. Millar ◽  
K. M. Johnson

Science ◽  
1977 ◽  
Vol 198 (4322) ◽  
pp. 1173-1175 ◽  
Author(s):  
W. G. EBERHARD

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
F. Barbero ◽  
D. Patricelli ◽  
M. Witek ◽  
E. Balletto ◽  
L. P. Casacci ◽  
...  

About 10,000 arthropod species live as ants' social parasites and have evolved a number of mechanisms allowing them to penetrate and survive inside the ant nests.Myrmicacolonies, in particular, are exploited by numerous social parasites, and the presence of their overwintering brood, as well as of their polygyny, contributes to make them more vulnerable to infestation. Butterflies of the genusMaculineaare among the most investigatedMyrmicainquilines. These lycaenids are known for their very complex biological cycles.Maculineaspecies are obligated parasites that depend on a particular food plant and on a specificMyrmicaspecies for their survival.Maculinealarvae are adopted byMyrmicaants, which are induced to take them into their nests by chemical mimicry. Then the parasite spends the following 11–23 months inside the ants' nest. Mimicking the acoustic emission of the queen ants,Maculineaparasites not only manage to become integrated, but attain highest rank within the colony. Here we review the biology ofMaculinea/Myrmicasystem with a special focus on some recent breakthrough concerning their acoustical patterns.


2012 ◽  
Vol 58 (9) ◽  
pp. 1259-1264 ◽  
Author(s):  
Alessia Uboni ◽  
Anne-Geneviève Bagnères ◽  
Jean-Philippe Christidès ◽  
Maria Cristina Lorenzi

2008 ◽  
Vol 6 (2) ◽  
pp. 289-292 ◽  
Author(s):  
Peter J. Auster

Predators are known to modify hunting tactics in response to local conditions to exploit prey of different species, densities or position within habitat patches. I describe three unusual prey hunting tactics used by trumpetfish (Aulostomus maculatus) distributed in midwater above reefs off Bonaire, Netherlands Antilles, in the southern Caribbean Sea. Hunting behaviors were focused on dense feeding aggregations of brown chromis (Chromis multilineata) and were categorized as: (1) slow horizontal following, (2) vertical hovering or drift, and (3) diagonal cross encounters where trumpetfish descended diagonally through the water while adjusting trajectory to encounter target prey. Understanding variation in predator behavior and ambit, in this case vertical ambit, adds to our knowledge of how predators adapt to unique local opportunities to exploit prey.


2005 ◽  
Vol 28 (5) ◽  
pp. 692-693 ◽  
Author(s):  
Christophe Boesch

Ignoring most published evidence on wild chimpanzees, Tomasello et al.'s claim that shared goals and intentions are uniquely human amounts to a faith statement. A brief survey of chimpanzee hunting tactics shows that group hunts are compatible with a shared goals and intentions hypothesis. The disdain of observational data in experimental psychology leads some to ignore the reality of animal cognitive achievements.


Chemoecology ◽  
2020 ◽  
Vol 30 (4) ◽  
pp. 139-146
Author(s):  
Emily R. Burdfield-Steel ◽  
Jutta M. Schneider ◽  
Johanna Mappes ◽  
Susanne Dobler

Abstract Insects live in a dangerous world and may fall prey to a wide variety of predators, encompassing multiple taxa. As a result, selection may favour defences that are effective against multiple predator types, or target-specific defences that can reduce predation risk from particular groups of predators. Given the variation in sensory systems and hunting tactics, in particular between vertebrate and invertebrate predators, it is not always clear whether defences, such as chemical defences, that are effective against one group will be so against another. Despite this, the majority of research to date has focused on the role of a single predator species when considering the evolution of defended prey. Here we test the effectiveness of the chemical defences of the wood tiger moth, a species previously shown to have defensive chemicals targeted towards ants, against a common invertebrate predator: spiders. We presented both live moths and artificial prey containing their defensive fluids to female Trichonephila senegalensis and recorded their reactions. We found that neither of the moth’s two defensive fluids were able to repel the spiders, and confirmed that methoxypyrazines, a major component of the defences of both the wood tiger moth and many insect species, are ineffective against web-building spiders. Our results highlight the variability between predator taxa in their susceptibility to chemical defences, which can in part explain the vast variation in these chemicals seen in insects, and the existence of multiple defences in a single species.


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