DSpace Collection:
https://hdl.handle.net/10171/1666
2024-03-29T12:58:59ZImaging Soil Mesofauna. The Land in Between
https://hdl.handle.net/10171/38496
Title: Imaging Soil Mesofauna. The Land in Between
Abstract: This chapter will try to make some generalisations on current approaches
to the imaging of small specimens. By that, we mean those
with sizes lying typically between that of microphotography and that
of macrophotography. These constraints do not necessarily mean a
requirement for taxon-specific techniques. Rather, mainstream imaging
procedures can be successfully used, although it is advisable to
consider certain characteristics of the taxa in question. A case, or
rather ‘bookcase’, study (i.e. different taxonomic groups) depicting
our laboratory’s procedures will act as a basis for discussing several
issues.
Assemblages of the largest specimens can be pictured, though
rarely, with SLR cameras fitted with a good macro lens. However,
mesofauna are usually imaged under the stereomicroscope or by
transmitted light microscopy. Preserved specimens are typically
mounted on slides and imaged at low power under optical or scanning
electron microscope, and details are captured at higher magnifications.
Surfaces, and superficial features, are targeted more often
than internal structures, and optical techniques are much more
common for contrast improvement than chemical stains.
The main drive should be directed at ensuring a good scientific usability
of the images. Thus, compromises will be needed where feature
visibility, enhancement, and fidelity conflict with aesthetic qualities.The wide spectrum of soil mesofauna means that a variety of handling
and preparation procedures, as well as several observation and
imaging techniques, are applied even within a group. Thus, the proposed
”bookcase” study will have several tiers at times, where techniques
differ for specific groups.2005-01-01T00:00:00ZLa percepción de los científicos sobre el rigor de los documentales
https://hdl.handle.net/10171/27608
Title: La percepción de los científicos sobre el rigor de los documentales2010-01-01T00:00:00Z