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Behavioral And Population Ecology Of The Army Ant Eciton Burchelli And Ant Following Birds
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Book Synopsis Behavioral and population ecology of the army ant Eciton burchelli and ant-following birds by : Monica Beth Swartz
Download or read book Behavioral and population ecology of the army ant Eciton burchelli and ant-following birds written by Monica Beth Swartz and published by . This book was released on 1997 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Army Ants and Obligaate Ant-following Birds by : Susan K. Willson
Download or read book Army Ants and Obligaate Ant-following Birds written by Susan K. Willson and published by . This book was released on 2003 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five species of obligate ant-following birds (Phlegopsis nigromaculata, Myrmeciza fortis, Rhegmatorhina melanosticta, Gymnopithys salvini, Thamnophilidae; Dendrocincla merula, Dendrocolaptidae) and two species of army ants (Eciton burchelli and Labidus praedator) were studied in Amazonian Peru over five years. The question of species coexistence in these five ecologically similar bird species was explored through analysis of population ecology, behavior and spatial movement patterns of the birds. Two of the five bird species (D. merula and M. fortis) utilized one or the other of the two army ant species as a preferred foraging resource. The three obligate ant-following antbirds that did not prefer one army ant species over the other (P. nigromaculata, R. melanosticta, and G. salvini) are segregated by body mass, which may allow differential utilization of space along an antswarm front's width. This would permit a smaller, more subordinate species to "fit" along the front of an antswarm that was already "full" to a different bird species. Behaviorally, species implemented different strategies when choosing where to forage among available E. burchelli antswarms. Nest site selection contributed to niche breadth among the obligate ant-followers, and may act to constrain populations of the dominant species P. nigromaculata from expanding to utilize more of the available army ant resource. Constraints on the dominant species may provide the socially subordinate R. melanosticta and G. salvini with the niche space they need to coexist with P. nigromaculata . Population dynamics of the birds were not stable over five years of data collection, and the total population of obligate ant-followers dropped by almost half over the course of the study. I suggest that periodic population declines are a normal occurrence in obligate ant-following guilds. Population fluctuations decreased interference competition among individuals and may increase the ability of the subordinate species R. melanosticta to coexist with the larger, dominant P. nigromaculata at Cocha Cashu. Home range size of each antbird species was minimized in some years through reliance on the unpredictable but abundant foraging opportunities at L. praedator antswarms. This poorly studied ant species played a pivotal role in expanding the available foraging resource for obligate ant-following birds, which allowed an increase in population densities well above what would be supported solely by E. burchelli army ants. The army ant E. burchelli has been well studied on a micro-habitat scale, but measures of behavioral ecology and population density are largely unknown for the Amazon basin and are estimated for the first time in this study. Nests and reproductive biology of four of the five bird species were undescribed at the start of this study, and nests, eggs and nestlings are described for P. nigromaculata, R. melanosticta and G. salvini . The dissertation concludes with a comparative examination of obligate ant-following guilds at three additional Neotropical sites.
Book Synopsis Army Ants by : Daniel J. C. Kronauer
Download or read book Army Ants written by Daniel J. C. Kronauer and published by Harvard University Press. This book was released on 2020-10-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: A richly illustrated, captivating study of army ants, nature’s preeminent social hunters. A swarm raid is one of nature’s great spectacles. In tropical rainforests around the world, army ants march in groups by the thousands to overwhelm large solitary invertebrates, along with nests of termites, wasps, and other ants. They kill and dismember their prey and carry it back to their nest, where their hungry brood devours it. They are the ultimate social hunters, demonstrating the most fascinating collective behavior. In Army Ants we see how these insects play a crucial role in promoting and sustaining the biodiversity of tropical ecosystems. The ants help keep prey communities in check while also providing nutrition for other animals. Many species depend on army ants for survival, including a multitude of social parasites, swarm-following birds, and flies. And while their hunting behavior, and the rules that govern it, are clearly impressive, army ants display collective behavior in other ways that are no less dazzling. They build living nests, called bivouacs, using their bodies to protect the queen and larvae. The ants can even construct bridges over open space or obstacles by linking to one another using their feet. These incredible feats happen without central coordination. They are the result of local interactions—self-organization that benefits the society at large. Through observations, stories, and stunning images, Daniel Kronauer brings these fascinating creatures to life. Army ants may be small, but their collective intelligence and impact on their environment are anything but.
Book Synopsis Obligate Army-ant-following Birds by : Susan K. Willson
Download or read book Obligate Army-ant-following Birds written by Susan K. Willson and published by . This book was released on 2004-01-01 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Microclimate and Habitat Area on the Ecology of the Army Ant Eciton Burchelli in Tropical Forest Fragments by : Joe E. Meisel
Download or read book The Influence of Microclimate and Habitat Area on the Ecology of the Army Ant Eciton Burchelli in Tropical Forest Fragments written by Joe E. Meisel and published by . This book was released on 2004 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Behavioural Ecology of Ants by : J.H. Sudd
Download or read book The Behavioural Ecology of Ants written by J.H. Sudd and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is concerned with two problems: how eusociality, in which one individual forgoes reproduction to enhance the reproduction of a nestmate, could evolve under natural selection, and why it is found only in some insects-termites, ants and some bees and wasps. Although eusociality is apparently confined to insects, it has evolved a number of times in a single order of insects, the Hymenoptera. W. Hamilton's hypothesis, that the unusual haplodiploid mechanism of sex determination in the Hymenoptera singled this order out, still seems to have great explanatory power in the study of social ants. We believe that the direction, indeed confinement, of social altruism to close kin is the mainspring of social life in an ant colony, and the alternative explanatory schemes of, for example, parental manipu lation, should rightly be seen to operate within a system based on the selective support of kin. To control the flow of resources within their colony all its members resort to manipulations of their nestmates: parental manipulation of offspring is only one facet of a complex web of manipul ation, exploitation and competition for resources within the colony. The political intrigues extend outside the bounds of the colony, to insects and plants which have mutualistic relations with ants. In eusociality some individuals (sterile workers) do not pass their genes to a new generation directly. Instead, they tend the offspring of a close relation (in the simplest case their mother).
Book Synopsis Nesting Behavior, Migration, and Dispersal of Neotropical Army Ants (Hymenoptera, Formicidae by : Thomas Warren Soare
Download or read book Nesting Behavior, Migration, and Dispersal of Neotropical Army Ants (Hymenoptera, Formicidae written by Thomas Warren Soare and published by . This book was released on 2013 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Army ants, keystone predators in tropical forests, collectively hunt prey and are obligately nomadic. Despite a wide geographic and elevational range, the army ant Eciton burchellii is sensitive to environmental extremes and avoids entering deforested areas. Bivouac (nest) sites at high elevation were found to be more frequently located in sheltered locations than at low elevations (Chapter 1). High elevation bivouac sites provide abiotic buffering to E. burchellii colonies, though the effect declines at the highest elevations. The combination of forest clearing and high elevations may restrict army ant dispersal in Monteverde, Costa Rica. Restricted dispersal may lead to reduced gene flow, which threatens populations with inbreeding depression and local extinction. We compared individual-based pairwise relatedness estimates of reconstructed queen and male genotypes to resistance distances based on land cover and elevation (Chapter 2). Land cover (deforestation), but not high elevation, was found to inhibit dispersal in army ants in Monteverde. Though significant spatial genetic structure was found in males but not queens, dispersal may be weakly male-biased. A temporal replication revealed no spatial pattern of relatedness over time (Chapter 3). This suggests that cumulative colony emigrations over the lifetime of the queen (before reproduction) may contribute to gene flow in this species. Thus forested habitat corridors should be maintained among fragments to allow for E. burchellii colony movements and subsequent gene dispersal. Army ants exhibit top-down effects on prey species and support a wide range of associates from mites to birds. Promoting army ant population persistence will maintain this biodiversity in tropical ecosystems.
Book Synopsis Costa Rican Ecosystems by : Maarten Kappelle
Download or read book Costa Rican Ecosystems written by Maarten Kappelle and published by University of Chicago Press. This book was released on 2016-04-15 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the more than thirty years since the publication of Daniel H. Janzen’s classic Costa Rican Natural History, research in this small but astonishingly biodiverse, well-preserved, and well-studied Latin American nation has evolved from a species-level approach to the study of entire ecosystems. And from the lowland dry forests of Guanacaste to the montane cloud forests of Monteverde, from the seasonal forests of the Central Valley to the coastal species assemblages of Tortuguero, Costa Rica has proven to be as richly diverse in ecosystems as it is in species. In Costa Rican Ecosystems, Maarten Kappelle brings together a collection of the world’s foremost experts on Costa Rican ecology—outstanding scientists such as Daniel H. Janzen, Jorge Cortés, Jorge A. Jiménez, Sally P. Horn, Robert O. Lawton, Quírico Jiménez M., Carlos Manuel Rodríguez, Catherine M. Pringle, and Eduardo Carrillo J., among others—to offer the first comprehensive account of the diversity, structure, function, uses, and conservation of Costa Rica’s ecosystems. Featuring a foreword and introductory remarks by two renowned leaders in biodiversity science and ecological conservation, Thomas E. Lovejoy and Rodrigo Gámez Lobo, in addition to chapters highlighting the geology, soils, and climate of Costa Rica, as well as the ecosystems of its terrestrial, freshwater, and marine habitats, and including previously unpublished information on Isla del Coco, this beautiful color-illustrated book will be an essential reference for academic scientists, students, natural history guides, conservationists, educators, park guards, and visitors alike.
Download or read book Ant Ecology written by Lori Lach and published by Oxford University Press. This book was released on 2010 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: The incredible global diversity of ants, and their important ecological roles, mean that we cannot ignore the significance of ants in ecological systems. Ant Ecology takes the reader on a journey of discovery from the beginnings of ants many hundreds of thousands of years ago, through to the makings of present day distributions.
Book Synopsis The Behavior of Spotted Antbirds by : Edwin O. Willis
Download or read book The Behavior of Spotted Antbirds written by Edwin O. Willis and published by American Ornithologists Union. This book was released on 1972 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Processes Shaping the Community Composition of Birds Following Army Ant Swarms by : Laura Gomez-Murillo
Download or read book Processes Shaping the Community Composition of Birds Following Army Ant Swarms written by Laura Gomez-Murillo and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the influence of species interactions on community structure is a long-standing goal in ecology. Shifts in species interactions, however, can occur over time and space in response to environmental variation, changes in resources, alteration of habitat, and other factors. Here I investigated the mechanisms influencing the species interaction in one type of mixed-species group – army ant-following birds. First, I used a social network analysis approach to examine how the structure of the communities of army ant-following birds varied along a rainfall and fragmentation gradient in Panama. I found that network structures varied significantly across the rainfall gradient, with networks differing in size, complexity, and cohesion across the gradient. Whereas, fragmentation resulted in the dissolution of these groups. Second, I examined how characteristics of the ant swarms and abundance of key, dominant species influenced the overall bird community attending swarms. I found that individuals use multiple cues to make decisions about whether to forage in groups, and both the species present and swarm traits alter the costs and benefits of foraging in mixed-species groups. As the environment continues to change, mismatches between cues and profitability, shifts in the species present, and shifts in costs and benefits may arise, dramatically altering the structure of these groups. Understanding the relationships between environmental factors and species interactions contributes to our ability to predict the potential negative impact of climate change and habitat alteration on the dynamics of species interactions and subsequently in the community structure per se.
Book Synopsis Adventures among Ants by : Mark W. Moffett
Download or read book Adventures among Ants written by Mark W. Moffett and published by Univ of California Press. This book was released on 2010-05-05 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intrepid international explorer, biologist, and photographer Mark W. Moffett, "the Indiana Jones of entomology," takes us around the globe on a strange and colorful journey in search of the hidden world of ants. In tales from Nigeria, Indonesia, the Amazon, Australia, California, and elsewhere, Moffett recounts his entomological exploits and provides fascinating details on how ants live and how they dominate their ecosystems through strikingly human behaviors, yet at a different scale and a faster tempo. Moffett’s spectacular close-up photographs shrink us down to size, so that we can observe ants in familiar roles; warriors, builders, big-game hunters, and slave owners. We find them creating marketplaces and assembly lines and dealing with issues we think of as uniquely human—including hygiene, recycling, and warfare. Adventures among Ants introduces some of the world’s most awe-inspiring species and offers a startling new perspective on the limits of our own perception. • Ants are world-class road builders, handling traffic problems on thoroughfares that dwarf our highway systems in their complexity • Ants with the largest societies often deploy complicated military tactics • Some ants have evolved from hunter-gatherers into farmers, domesticating other insects and growing crops for food
Download or read book Army Ants written by Carol Krueger and published by Heinemann. This book was released on 2004-07-23 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Evolution of Social Behaviour by : Michael Taborsky
Download or read book The Evolution of Social Behaviour written by Michael Taborsky and published by Cambridge University Press. This book was released on 2021-08-26 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can the stunning diversity of social systems and behaviours seen in nature be explained? Drawing on social evolution theory, experimental evidence and studies conducted in the field, this book outlines the fundamental principles of social evolution underlying this phenomenal richness.To succeed in the competition for resources, organisms may either 'race' to be quicker than others, 'fight' for privileged access, or 'share' their efforts and gains. The authors show how the ecology and intrinsic attributes of organisms select for each of these strategies, and how a handful of straightforward concepts explain the evolution of successful decision rules in behavioural interactions, whether among members of the same or different species. With a broad focus ranging from microorganisms to humans, this is the first book to provide students and researchers with a comprehensive account of the evolution of sociality by natural selection.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Use by Army Ants and Ant-following Birds in Premontane Forest and Coffee Agroecosystems in Western Panama by : Dina L. Roberts
Download or read book Habitat Use by Army Ants and Ant-following Birds in Premontane Forest and Coffee Agroecosystems in Western Panama written by Dina L. Roberts and published by . This book was released on 1998 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Evolutionary Ecology of the Army Ant Eciton Burchelli on Barro Colorado Island, Panama by : Nigel Rigby Franks
Download or read book The Evolutionary Ecology of the Army Ant Eciton Burchelli on Barro Colorado Island, Panama written by Nigel Rigby Franks and published by . This book was released on 1980 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
