This thesis examines the use of two social behaviors in Poecilia reticulata. In my first study, I observed the effect of female sexual responsiveness on the use of mate-choice copying. When shown two males, each paired with a model female, females found a previously unattractive male more attractive after viewing him with a sexually responsive female. This finding presents a new important social factor to sexual selection. In my second study, I observed aggression around a limited food source. I first manipulated the distribution of female size within a group. In a second experiment, I altered the spatial distribution of the food. Female size distribution was found to have a limited effect in aggression rates. Contrary to previous studies, my results showed no effect of spatial distribution of food on aggression. Further research needs to be performed to accurately determine the factors influencing the use of aggressive behavior in guppies.

The increasing realization among behaviorists and psychologists is that many animals learn by observation as members of social systems. Such settings contribute to the formation of culture. This book combines the knowledge of two groups of scientists with different backgrounds to establish a working consensus for future research. The book is divided into two major sections, with contributions by a well-known, international, and interdisciplinary team which integrates these growing areas of inquiry. Integrates the broad range of scientific approaches being used in the studies of social learning and imitation, and society and culture Provides an introduction to this field of study as well as a starting point for the more experienced researcher Chapters are succinct reviews of innovative discoveries and progress made during the past decade Includes statements of varied theoretical perspectives on controversial topics Authoritative contributions by an international team of leading researchers

The Trinidadian guppy (Poecilia reticulata) is well known to biologists and home aquarium enthusiasts alike. Scientists have studied guppies for most of the twentieth century. Some of the most intensive recent research has been conducted by behavioral ecologists, who have found that the guppy mating system makes guppies especially useful in the study of sexual selection and mate choice. By observing guppy behavior in aquaria, researchers hope to obtain new insights into how selection operates in natural populations. Here Anne Houde summarizes and synthesizes the scientific work done to date, relates the empirical findings on guppies to current themes in sexual selection theory, and suggests new directions for future research. This book describes the sexual behavior of guppies and examines how mate choice by females leads to the evolution of the conspicuous colors and the courtship displays for which guppies are widely recognized. The author shows that female guppies prefer males with bright color patterns, especially those with orange spots, and that the mating preferences of females lead to sexual selection on both color patterns and courtship displays of males. Houde's work addresses a number of areas that are of interest in sexual selection, including the remarkable degree of plasticity and evolutionary lability of sexual behavior in guppies, geographic variation in mating preferences, possible mechanisms for the evolution of female mating preferences, and the role of sexual selection in speciation. In conclusion, the author explores the implications of her findings for behavioral ecologists who study sexual selection in other species.

A home aquarium seems a peaceful place. Gazing at its inhabitants as they swim slowly through their small universe is a soothing, even hypnotic, experience. But this seeming tranquillity is only surface deep. Like their wild counterparts, these tiny, glittering beings exhibit a wide array of fascinating behaviors.Stéphan Reebs provides a delightfully entertaining, yet scientifically grounded, look at what fishes do and how they do it. From defending their young, to seeking out the perfect sexual partner, to telling time, fishes display a variety of behaviors that may not be readily apparent to the casual observer. Reebs not only describes the behaviors, but also outlines simple experiments that can be performed by observers wishing to learn for themselves just how resourceful—and bizarre—these creatures can be.How Fish Behave introduces us to damselfishes that sing like birds, elephantfishes that communicate electrically, and sticklebacks that deceive other fish into believing they have found food. Drawing on the experimental evidence behind such intrinsically interesting responses, Reebs demonstrates how science is conducted in the field of animal behavior.

A major new look at the evolution of mating decisions in organisms from protozoans to humans The popular consensus on mate choice has long been that females select mates likely to pass good genes to offspring. In Mate Choice, Gil Rosenthal overturns much of this conventional wisdom. Providing the first synthesis of the topic in more than three decades, and drawing from a wide range of fields, including animal behavior, evolutionary biology, social psychology, neuroscience, and economics, Rosenthal argues that "good genes" play a relatively minor role in shaping mate choice decisions and demonstrates how mate choice is influenced by genetic factors, environmental effects, and social interactions. Looking at diverse organisms, from protozoans to humans, Rosenthal explores how factors beyond the hunt for good genes combine to produce an endless array of preferences among species and individuals. He explains how mating decisions originate from structural constraints on perception and from nonsexual functions, and how single organisms benefit or lose from their choices. Both the origin of species and their fusion through hybridization are strongly influenced by direct selection on preferences in sexual and nonsexual contexts. Rosenthal broadens the traditional scope of mate choice research to encompass not just animal behavior and behavioral ecology but also neurobiology, the social sciences, and other areas. Focusing on mate choice mechanisms, rather than the traits they target, Mate Choice offers a groundbreaking perspective on the proximate and ultimate forces determining the evolutionary fate of species and populations.

In the second edition of this fascinating book an international team of experts have been brought together to explore all major areas of fish learning, including: Foraging skills Predator recognition Social organisation and learning Welfare and pain Three new chapters covering fish personality, lateralisation, and fish cognition and fish welfare, have been added to this fully revised and expanded second edition. Fish Cognition and Behavior, Second Edition contains essential information for all fish biologists and animal behaviorists and contains much new information of commercial importance for fisheries managers and aquaculture personnel. Libraries in all universities and research establishments where biological sciences, fisheries and aquaculture are studied and taught will find it an important addition to their shelves.