|
|
Showing 1 - 2 of
2 matches in All Departments
Wild animals survive in a variety of complex environments; they are
exposed to predictable and unpredictable changes in their
particular environment on a daily or seasonal basis. However, we
live in a time when almost all natural environments are undergoing
relatively rapid change, and many of these changes, such as the
pollution of air and water, removal of natural food sources,
environment fragmentation, and climate change, are the result of
human activity. Animal Physiology: an environmental perspective
shows how an understanding of the physiology of animals in their
natural habitats helps us to understand not only how and why
animals evolved the way they did, but how we can act to protect at
least some of them from the extreme effects of the changes
affecting their environments. Part One sets the foundation for the
topics covered in the remainder of the book by introducing a range
of fundamental processes that are essential to life. It considers
the diversity of habitats on Earth in which animals live, and
examines animal groups and their evolutionary relationships. It
then explores the different feeding strategies used by animals to
obtain the energy they require to carry out all the essential
functions of life, and how animals convert the chemical energy in
food molecules into the energy they need to power all body
functions. Finally, it explores the general properties of animal
cells, and how animals maintain a suitable internal environment in
which their cells are protected from external influences. We then
examine those fundamental principles governing the main exchanges
between the cells within animals, and between an animal and its
environment. Parts two to four of the book explore how different
organ systems - respiratory and circulatory systems, excretory
organs and endocrine systems - enable animals to interact with
their environment, and how environmental temperature profoundly
affects the physiology of animals. Part five considers how the
sensory and nervous systems provide animals with information on
their internal as well as their external environment, and how they,
together with the endocrine system, are involved in the control and
co-ordination of muscles, reproduction, salt and water balance, and
the cardio-respiratory systems. Digital formats and resources
Animal Physiology: an environmental perspective is supported by
online resources and is available for students and institutions to
purchase in a variety of formats. The e-book offers a mobile
experience and convenient access along with functionality tools,
navigation features and links that offer extra learning support:
www.oxfordtextbooks.co.uk/ebooks The book's online resources
include: For students: - Original articles: a list of original
articles consulted during the writing of each chapter so that you
can explore the original research for yourself. - Additional case
studies and experimental approach panels to augment those in the
printed book. - Answers to numerical questions: full solutions to
numerical questions so that you can verify your working. For
registered adopters of the text: - Digital image library: Includes
electronic files in JPG format of every illustration, photo, graph
and table from the text
This report is part of a broader effort by the World Bank Group to
understand the motives and challenges of small entrepreneurs in
fragile and conflict-affected situations (FCS). The report s key
finding is that, compared to entrepreneurs elsewhere, entrepreneurs
in FCS have different characteristics, face significantly different
challenges, and thus may be subject to different incentives and
have different motives. Therefore, it is recommended that both the
current analytical approach and the operational strategy of the
World Bank be informed by the findings that follow. The report
summarizes findings of recent World Bank Enterprise Surveys (ES)
conducted across Sub-Saharan Africa (SSA), Asia, and the Eastern
Europe and Central Asia (ECA) Region as well as Doing Business
indicators and additional World Bank Group studies and field
observations. The report finds that the majority of entrepreneurs
in FCS countries are small, informal, and concentrated in the
trade/services sectors. According to the ES, and after controlling
for the level of development (that is, GDP per capita), 1. The
average FCS firm in SSA and the ECA Region produces less output
than non-FCS firms 2. The average FCS firm in ECA is by 20 percent
less likely to innovate (that is, to introduce/upgrade new products
and services) than its non-FCS counterpart. 3. FCS firms start
smaller and grow significantly more slowly, or even shrink (in the
number of employees) over time, compared to non-FCS firms in the
Regions analyzed. The report also highlights the differences in
sector and business environment characteristics between FCS and
non-FCS business environments."
|
|