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This comprehensive book covers a wide variety of methods for
estimating the sizes and related parameters of closed populations.
With the effect of climate change, and human territory invasion, we
have seen huge species losses and a major biodiversity decline.
Populations include plants, trees, various land and sea animals,
and some human populations. With such a diversity of populations,
an extensive variety of different methods are described with the
collection of different types of data. For example, we have count
data from plot sampling, which can also allow for incomplete
detection. There is a large chapter on occupancy methods where a
major interest is determining whether a particular species is
present or not. Citizen and opportunistic survey data can also be
incorporated. A related topic is species methods, where species
richness and species' interactions are of interest. A variety of
distance methods are discussed. One can use distances from points
and lines, as well as nearest neighbor distances. The applications
are extensive, and include marine, acoustic, and aerial surveys,
using multiple observers or detection devices. Line intercept
measurements have a role to play such as, for example, estimating
parameters relating to plant coverage. An increasingly important
class of removal methods considers successive “removals" from a
population, with physical removal or "removal" by capture-recapture
of marked individuals. With the change-in-ratio method, removals
are taken from two or more classes, e.g., males and females. Effort
data used for removals can also be used. A very important method
for estimating abundance is the use of capture-recapture data
collected discretely or continuously and can be analysed using both
frequency and Bayesian methods. Computational aspects of fitting
Bayesian models are described. A related topic of growing interest
is the use of spatial and camera methods. With the plethora of
models there has been a corresponding development of various
computational methods and packages, which are often mentioned
throughout. Covariate data is being used more frequently, which can
reduce the number of unknown parameters by using logistic and
loglinear models. An important computational aspect is that of
model selection methods. The book provides a useful list of over
1400 references.
Methods for making inferences from data about one or more
probabilities and proportions are a fundamental part of a
statistician's toolbox and statistics courses. Unfortunately many
of the quick, approximate methods currently taught have recently
been found to be inappropriate. This monograph gives an up-to-date
review of recent research on the topic and presents both exact
methods and helpful approximations. Detailed theory is also
presented for the different distributions involved, and can be used
in a classroom setting. It will be useful for those teaching
statistics at university level and for those involved in
statistical consulting."
This book aims to provide an overview of some adaptive techniques
used in estimating parameters for finite populations where the
sampling at any stage depends on the sampling information obtained
to date. The sample adapts to new information as it comes in. These
methods are especially used for sparse and clustered populations.
Written by two acknowledged experts in the field of adaptive
sampling.
This comprehensive book, rich with applications, offers a
quantitative framework for the analysis of the various
capture-recapture models for open animal populations, while also
addressing associated computational methods. The state of our
wildlife populations provides a litmus test for the state of our
environment, especially in light of global warming and the
increasing pollution of our land, seas, and air. In addition to
monitoring our food resources such as fisheries, we need to protect
endangered species from the effects of human activities (e.g.
rhinos, whales, or encroachments on the habitat of orangutans).
Pests must be be controlled, whether insects or viruses, and we
need to cope with growing feral populations such as opossums,
rabbits, and pigs. Accordingly, we need to obtain information about
a given population's dynamics, concerning e.g. mortality, birth,
growth, breeding, sex, and migration, and determine whether the
respective population is increasing , static, or declining. There
are many methods for obtaining population information, but the most
useful (and most work-intensive) is generically known as
"capture-recapture," where we mark or tag a representative sample
of individuals from the population and follow that sample over time
using recaptures, resightings, or dead recoveries. Marks can be
natural, such as stripes, fin profiles, and even DNA; or
artificial, such as spots on insects. Attached tags can, for
example, be simple bands or streamers, or more sophisticated
variants such as radio and sonic transmitters. To estimate
population parameters, sophisticated and complex mathematical
models have been devised on the basis of recapture information and
computer packages. This book addresses the analysis of such models.
It is primarily intended for ecologists and wildlife managers who
wish to apply the methods to the types of problems discussed above,
though it will also benefit researchers and graduate students in
ecology. Familiarity with basic statistical concepts is essential.
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