In this edited volume, global experts in ecology and evolutionary biology explore how theories in ecology elucidate the processes of invasion, while also examining how specific invasions inform ecological theory. This reciprocal benefit is highlighted in a number of scales of organization: population, community and biogeographic. The text describes example invaders in all major groups of organisms and from a number of regions around the globe.
Microbes produce an extraordinary array of microbial defense systems. These
include broad-spectrum classical antibiotics, metabolic byproducts, such as
the lactic acids produced by lactobacilli, lytic agents such as lysozymes,
numerous types of protein exotoxins, and bacteriocins, which are loosely
defined as biologically active protein moieties with a bacteriocidal mode of
Our goal in writing this book was to describe
why weeds occur where they do. We have
made no attempt to discuss their management
and control: there are excellent texts
available for that. Rather, we think that students
should understand how and why
weeds fit into their environment. This text
presents ecological principles as they relate
to weeds. Ecology is central to our understanding
of how and why weeds invade and
yet there are few books that make this connection.
That is the niche we hope to fill.
The scope of this book is to demonstrate that we do have an ecosystem theory that can be
used to describe ecosystem structure and function. It was previously shown in the book,
Integration of Ecosystem Theories: A Pattern (3rd edition, 2002), that the various contributions
to systems ecology are consistent and together form a pattern of ecological
processes. My book with Yuri Svirezhev, Toward a Thermodynamic Theory of Ecosystems
(2004), presented the thermodynamics of this pattern in a mathematical language....
This book, now in its third edition, began almost 25 years ago when Weed
Ecology: Implications for Vegetation Management was published in 1984. That
text concentrated on the need for farmers, foresters, rangeland managers, and the
researchers who advised them to understand better the biology of weeds and
the role people play in creating and maintaining weeds in agriculture and other
production systems. We were assisted in that first effort by the writings of many
early scientists, such as J. L. Harper, H. G. Baker, and E. J.
The timing of the publication of this book couldn’t be better as we celebrate the
50th anniversary of Charles Elton’s seminal book, The Ecology of Invasions by
Animals and Plants. Since this influential book was published in 1958, the study of
bioinvasions has developed exponentially, alongside the exponential growth in the
magnitude of the invasion problem itself. Today, bioinvasion, a highly complex
ecological process and environmental concern, has become a specific branch in
ecology and environmental studies, with many disciplines developing within it....
The natural world is a place I escape to: a place that goes about its business
regardless of everyday individual human concerns. It is a place of beauty,
change, diversity, and endless fa scination. Like many who share these sentiments,
I was never content to just be in nature: I had to watch, name, learn,
and understand. This book is about understanding how and why the natural
world works, thereby to appreciate it more for what it really is. For me, that is
one of the things that make life ‘more than just living’....
Biological invasions are one of the major threats to our native biodiversity. The
magnitude of biodiversity losses, land degradation and productivity losses of managed
and natural ecosystems due to invasive species is enormous. It has an adverse
impact on our efforts to maintain biodiversity and on our conservation programs,
and thus could create societal instability.
The long-term approach to achieving protection is “ecological separation.” A true ecological
separation is defined as no inter-basin transfer of aquatic organisms via the Chicago Waterway
System at any time – 100% effectiveness. Ecological separation prohibits the movement or interbasin
transfer of aquatic organisms between the Mississippi and Great Lakes basins via the CWS.
Once established, the impacts of invasive species on ecosystem health are permanent and
Exotic Species and Their Control
The invasion of ecosystems by exotic species is a major environmental problem that has become widely recognized (Culotta, 1991; Mack et al., 2000; Malakoff, 1999). This phenomenon is occurring globally and causing changes to ecosystems, along with associated economic impacts.
Large lakes are important because of their size and
ecological distinctiveness, as well as their economic and
cultural value. Optimal management of them requires a
proper understanding of anthropogenic impacts, both on
the lake ecosystems, as such and on the services they
provide for society. The specific structural and functional
properties of large lakes, e.g. morphology,
hydrography, biogeochemical cycles, and food-web
structure, are all directly related to their size.
As the human population inexorably grows, its cumulative
impacts on the earth’s resources are hard to ignore.
The ability of the earth to support more humans is
dependent on the ability of humans to manage natural
resources wisely. Because disturbance alters resource
levels, effective management requires understanding of
the ecology of disturbance. Editorship of this book was
undertaken with several goals in mind. First, I wanted
to present an organized summary of the many types
of disturbances that impact the earth, with as global
a focus as the existing literature allowed....
Transportation of species to areas outside their native ranges has been a feature of
human culture for millennia. During this time such activities have largely been
viewed as beneficial or inconsequential. However, it has become increasingly clear
that human-caused introductions of alien biota are an ecological disruption whose
consequences rival those of better-known insults like chemical pollution, habitat
loss, and climate change. Indeed, the irreversible nature of most alien-species introductions
makes them less prone to correction than many other ecological problems.
In 2005, the Royal College of Physicians (RCP), UK, defined well-being as ‘a holistic notion of
achieving a state of health, comfort and happiness’ (RCP, 2005). Other societies have however for
a very long time throughout the history of Western society addressed the holistic aspects of
health and the concept of ‘feeling’ or of ‘being well’.
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài:Modeling invasion of metastasizing cancer cells to bone marrow utilizing ecological principles
The third edition of
The Fungal Community
has been compiled by a new set of editors. The
three of us were impressed with the quality and content of the previous two editions and
hope that we have matched the work of George Carroll and Don Wicklow in this new volume.
The aims and objectives of this volume are explained in our introductory chapter,
but in brief, we have tried to address some of the current discussions in ecology (diversity
and function, scaling issues, disturbance, invasive species) from a fungal perspective.