Download e-book for kindle: Antarctic Seals: Research Methods and Techniques by R. M. Laws

By R. M. Laws

ISBN-10: 0511565283

ISBN-13: 9780511565281

ISBN-10: 0521111765

ISBN-13: 9780521111768

ISBN-10: 0521443024

ISBN-13: 9780521443029

This e-book describes the tools and strategies for box experiences of the inhabitants ecology of seals on the way to assemble easy medical info and to aid in conservation efforts. The papers during this e-book make particular innovations for estimating inhabitants sizes, for learning their habit on land and at sea, and for immobilizing, taking pictures, marking, and, the place worthwhile, humanely killing seals so one can research body structure, vitamin, bioenergetics, and make age determinations.

Show description

Read Online or Download Antarctic Seals: Research Methods and Techniques PDF

Best mammals books

New PDF release: The Yellowstone Wolf: A Guide and Sourcebook

All royalties from revenues of this e-book visit Yellowstone’s wolf restoration projectFew animals encourage this sort of mix of worry, interest, and sweetness because the wolf. very popular yet frequently misunderstood, the wolf has as many associates as enemies, and its reintroduction into Yellowstone nationwide Park has sparked either fascination and controversy.

Read e-book online Computational models of visual processing PDF

The plenoptic functionality and the weather of early imaginative and prescient / Edward H. Adelson and James R. Bergen --
Learning receptor positions / Albert J. Ahumada, Jr. --
A version of aliasing in extrafoveal human imaginative and prescient / Carlo L. M. Tiana . .. [et al. ] --
Models of human rod receptors and the ERG / Donald C. Hood and David G. Birch --
The layout of chromatically opponent receptive fields / Peter Lennie, P. William Haake, and David R. Williams --
Spatial receptive box association in monkey V1 and its courting to the cone mosaic / Michael J. Hawken and Andrew J. Parker --
Neural distinction sensitivity / Andrew B. Watson --
Spatiotemporal receptive fields and path selectivity / Robert Shapely, R. Clay Reid, and Robert Soodak --
Nonlinear version of neural responses in cat visible cortex / David J. Heeger. A template matching version of subthreshold summation / Jacob Nachmias --
Noise within the visible procedure should be early / Denis G. Pelli --
Pattern discrimination, visible filters, and spatial sampling irregularity / Hugh R. Wilson --
A bilinear version of the illuminant's impression on colour visual appeal / David H. Brainard and Brian A. Wandell --
Shading ambiguity : reflectance and illumination / Michael D'Zmura --
Transparency and the cooperative computation of scene attributes / Daniel Kersten --
Theories for the visible notion of neighborhood pace and coherent movement / Norberto M. Grzywacz and Alan L. Yuille --
Computational modeling of visible texture segregation / James R. Bergen and Michael S. Landy --
Complex channels, early neighborhood nonlinearities, and normalization in texture segregation / Norma Graham. Orthogonal distribution research : a brand new method of the examine of texture belief / Charles Chubb and Michael S. Landy --
Shape from X : psychophysics and computation / Heinrichs H. Bülthoff --
Computational concerns in fixing the stereo correspondence challenge / John P. Frisby and Stephen B. Pollard --
Stereo, surfaces, and form / Andrew J. Parker . .. [et al. ].

Download e-book for kindle: Cell Biology and Immunology of Leukocyte Function by Efraim Racker

Mobilephone Biology and Immunology of Leukocyte functionality is a set of papers provided on the twelfth overseas Leukocyte tradition convention, held in Beersheba, Israel on June 1978. This e-book is geared up into seven elements encompassing 111 chapters. The members hide the various points of telephone biology and immunology and the original leukocyte functionality.

New PDF release: Endogenous Stem Cell-Based Brain Remodeling in Mammals

This article highlights the endogenous regenerative capability of the significant worried process in neonates and juveniles and discusses attainable methods it'd be manipulated for clinical reasons. the 1st part presents a descriptive precis of the salient steps of human mind improvement with a dialogue of comparisons with different mammalian brains.

Additional info for Antarctic Seals: Research Methods and Techniques

Example text

Smaller than true seals. Bulls have thickening of neck and shoulders due to presence of a mane. 5 kg. Adult: male length to 200 cm; weight to 200 kg. female length to 145 cm; weight to 50 kg. A. tropicalis is smaller than A. gazella. Colour Back and sides grey to brownish, depending on length of time ashore; throat and breast creamy; belly dark gingery colour. Adult male has heavy mane round neck, shoulder and on breast - grizzled appearance due to white hairs. M. Laws Fig. 12 Antarctic fur seal characteristic attitudes.

Most species appear more tolerant of noise during high seas or strong winds perhaps due to increased levels of background noise. Occasionally, an up-wind approach may make some difference in producing disturbance with the seals becoming 'attentive' well before any normal reaction distance is reached. However, on occasions when animals are 'attentive' to the presence of a disturbance, they raise their heads and this may make counting or age/sex discriminations easier. If animals start to move in apparent response to an approach, it is sometimes possible to ease away from the direct approach and animals' exodus will cease.

Accurate measurement of the distance of individual seals from the track-line is often not possible during aerial surveys, and some form of strip transect methodology is normally employed. However, an estimate of the variation in sightings probability with distance from the track-line can be obtained by dividing the strip into a number of sectors. , 1987), or by streamers attached to the aircraft's wing struts. In both cases it is important that observers do not alter the elevation of their head relative to the markers, as this can change the strip width.

Download PDF sample

Antarctic Seals: Research Methods and Techniques by R. M. Laws

by Paul

Rated 4.66 of 5 – based on 12 votes