Diversity, Biogeography and Community Ecology of Ants


Book Description

Ants are a ubiquitous, highly diverse, and ecologically dominant faunal group. They represent a large proportion of global terrestrial faunal biomass and play key ecological roles as soil engineers, predators, and re-cyclers of nutrients. They have particularly important interactions with plants as defenders against herbivores, as seed dispersers, and as seed predators. One downside to the ecological importance of ants is that they feature on the list of the world's worst invasive species. Ants have also been important for science as model organisms for studies of diversity, biogeography, and community ecology. Despite such importance, ants remain remarkably understudied. A large proportion of species are undescribed, the biogeographic histories of most taxa remain poorly known, and we have a limited understanding of spatial patterns of diversity and composition, along with the processes driving them. The papers in this Special Issue collectively address many of the most pressing questions relating to ant diversity. What is the level of ant diversity? What is the origin of this diversity, and how is it distributed at different spatial scales? What are the roles of niche partitioning and competition as regulators of local diversity? How do ants affect the ecosystems within which they occur? The answers to these questions provide valuable insights not just for ants, but for biodiversity more generally.




Diversity, Biogeography and Community Ecology of Ants


Book Description

Ants are a ubiquitous, highly diverse, and ecologically dominant faunal group. They represent a large proportion of global terrestrial faunal biomass and play key ecological roles as soil engineers, predators, and re-cyclers of nutrients. They have particularly important interactions with plants as defenders against herbivores, as seed dispersers, and as seed predators. One downside to the ecological importance of ants is that they feature on the list of the world's worst invasive species. Ants have also been important for science as model organisms for studies of diversity, biogeography, and community ecology. Despite such importance, ants remain remarkably understudied. A large proportion of species are undescribed, the biogeographic histories of most taxa remain poorly known, and we have a limited understanding of spatial patterns of diversity and composition, along with the processes driving them. The papers in this Special Issue collectively address many of the most pressing questions relating to ant diversity. What is the level of ant diversity? What is the origin of this diversity, and how is it distributed at different spatial scales? What are the roles of niche partitioning and competition as regulators of local diversity? How do ants affect the ecosystems within which they occur? The answers to these questions provide valuable insights not just for ants, but for biodiversity more generally.




Ant Ecology


Book Description

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.




Linking Community Ecology and Biogeography


Book Description

Understanding what drives variation in species diversity in space and time and limits coexistence in local communities is a main focus of community ecology and biogeography. My doctoral work aims to document patterns of ant diversity and explore the possible ecological mechanisms leading to these patterns. Elucidating the processes by which communities assemble and species coexist might help explain spatial variation in species diversity. Using a combination of manipulative experiments, broad-scale surveys, behavioral assays and phylogenetic analyses, I examine which ecological processes account for the number of species coexisting in ant communities. Ants are found in most terrestrial habitats, where they are abundant, diverse and easy to sample (Agosti et al. 2000). Hölldobler and Wilson (1990) noted that competition was the hallmark of ant ecology, and we know that ant diversity varies along environmental gradients (Kusnezov 1957). Thus ants are an ideal taxon to examine the factors shaping the structure of ecological communities and how the determinants of community structure vary in space.




Ants Diversity between Organic and Conventional Farm


Book Description

Academic Paper from the year 2021 in the subject Environmental Sciences, grade: 100%, , language: English, abstract: The diversity of ants in conventional and organic farms has not been investigated in Tanzania, therefore, the study aims at investigating that and provides knowledge for ants conservation. Machare Coffee Estate is among unique plantations in which both conventional and organic farming of coffee are performed. The study contributes to the existing body of knowledge on the influence of these farming practices on ants’ diversity. Knowledge about ants diversity is useful for the conservation of other species which associate with ants in the ecological chain. Therefore from such a gap in knowledge, this study intends to compare the diversity of ants in organic and conventional farms. Moreover, the findings from this study will aid in biodiversity management and conservation in the area in particular. Ants play a vital-ecological role as they influence soil movement, nutrient cycling and water availability in their habitat. Habitat destruction and the use of Agrochemicals are regarded as among the factors that affect the diversity of ants. Machare Coffee Estate is one of the farms which practice both organic and conventional farming. To reveal whether there is a difference in diversity between these two practices this study was conducted at Machare Coffee Estate for three weeks. The study used four transects of 80 m with four quadrants of 10x10 m within it, where 6 pitfall traps with an inter pitfall distance of 3 m were laid down per quadrant on both sites. A total number of 96 pitfall traps were used per site. A total of 2381 ants from five subfamilies were collected. Ant’s diversity was analyzed by the Shannon Wiener index and a t-test was used to test the hypothesis. Keywords; Ants, diversity, conventional farming, organic farming




The Natural History of the Crustacea


Book Description

This is the eighth volume of a ten-volume series on The Natural History of the Crustacea. The volume examines Evolution and Biogeography, and the first part of this volume is entirely dedicated to the explanation of the origins and successful establishment of the Crustacea in the oceans. In the second part of the book, the biogeography of the Crustacea is explored in order to infer how they conquered different biomes globally while adapting to a wide range of aquatic and terrestrial conditions. The final section examines more general patterns and processes, and the chapters offer useful insight into the future of crustaceans.




Ant-Plant Interactions


Book Description

The first volume devoted to anthropogenic effects on interactions between ants and flowering plants, considered major parts of terrestrial ecosystems.




The Desert Grassland


Book Description

"Leading experts in geography, biology, botany, zoology, and geoscience present new research on the desert grassland and review a vast amount of earlier work. They reveal that present-day grasses once grew in the ice age forests that existed in these areas before the climate dried and the trees vanished, and how the intensity and frequency of fire can influence the plant and animal species of the grassland.




Ants


Book Description

Ants have profound effects on flora because of their ability to consume plants, disperse seeds, and enrich the soil. Ants are ubiquitous, diverse, easy to collect, and sensitive to environ. change. Written by 30 leading ant biologists, this comprehensive book describes procedures for surveying the diversity of ground-dwelling ants. Introduces a standardized protocol for collecting ant samples and conducting repeated sampling over time, which enables researchers to analyze global and long-term patterns. Compares ant diversity to the diversity of other organisms and explains the value of ant studies in monitoring ecosystem change in diverse regions. Covers aspects of ant ecology and taxonomy, species identification, and specimen preparation. Illustrations.




Living in a Dynamic Tropical Forest Landscape


Book Description

This book brings together a wealth of scientific findings andecological knowledge to survey what we have learned about the“Wet Tropics” rainforests of North Queensland,Australia. This interdisciplinary text is the first book to providesuch a holistic view of any tropical forest environment, includingthe social and economic dimensions. The most thorough assessment of a tropical forest landscape todate Explores significant scientific breakthroughs in areasincluding conservation genetics, vegetation modeling, agroforestryand revegetation techniques, biodiversity assessment and modeling,impacts of climate change, and the integration of science innatural resource management Research achieved, in part, due to the Cooperative ResearchCentre for Tropical Rainforest Ecology and Management (theRainforest CRC) Written by a number of distinguished internationalexperts contains chapter summaries and section commentaries