Spruce Budworm Weight and Fecundity: Means, Frequency Distributions, and Correlations for Two Populations (Lepidoptera: Tortricidae)

Pupal weights and fecundities of spruce budworm from Minnesota had different means, coefficients of variation, and frequency distributions than spruce budworm from New Hampshire. The two variables were correlated in one of the populations but not the other

Reproductive Compatibility Within and Among Spruce Budworm (Lepidoptera: Tortricidae) Populations

Spruce bud worm moths collected as larvae from two species of host trees in four populations were mated in single pairs in two years. In 1980 but not 1981, more of the intra-population matings than the inter-population matings were fertile. Host tree origin was not a significant factor in the level of sterility

Guide to Cataloging DVD and Blu-ray Discs Using AACR2r and MARC 21 2008 Update

This guide is intended as an update to the 2002 Guide to Cataloging DVDs UsingAACR2r Chapters 7 and 9 created by the DVD Cataloging Task Force of OLAC. The update incorporates rule changes and interpretations that resulted from the 2004 Amendments for Chapters 7 and 9 of Anglo-American Cataloguing Rules (AACR2) and expands the discussion of formats to include Blu-ray Discs, DualDiscs, and DVD-Audio Discs. The information and cataloging examples presented should help clarify principles and rules used in cataloging DVD formats and digital video disc formats. There is also information to help the cataloging process for the Blu-ray Discs and DVD-Audio, newer formats that libraries will begin and continue to purchase as producers market and develop them for consumer use

音乐编目最佳应用——RDA与MARC21

This is the Chinese translation of "Best Practices for Music Cataloging: Using RDA and MARC21" Prepared by the RDA Music Implementation Task Force, Bibliographic Control Committee, Music Library Associatio

OLAC CAPC Moving Image Work-Level Records Task Force Report and Recommendations, Part I: Moving Image Work Definition and Boundaries, Part II: Core Attributes and Relationships

The Moving Image Work-Level Records Task Force of Online Audiovisual Catalogers (OLAC) Cataloging Policy Committee (CAPC) was charged with investigating and making recommendations on issues related to FRBR-based work-level records for moving image materials, including, but not limited to: Identifying characteristics of moving image works (possibly with some indication of relative importance) that should be included in work-level records and creating operational definitions of these characteristics. Identifying potential sources of information about these characteristics and examining the reliability of these sources. Examining existing bibliographic records to identify places where work-level information might be recorded and investigating the possibility of extracting information from pools of existing bibliographic records to create provisional work-level records

OLAC CAPC Moving Image Work-Level Records Task Force Draft Report and Recommendations, Part I: Moving Image Work Definition and Boundaries, Part II: Core Attributes and Relationships

The Moving Image Work-Level Records Task Force of Online Audiovisual Catalogers (OLAC) Cataloging Policy Committee (CAPC) was charged with investigating and making recommendations on issues related to FRBR-based work-level records for moving image materials, including, but not limited to: Identifying characteristics of moving image works (possibly with some indication of relative importance) that should be included in work-level records and creating operational definitions of these characteristics. Identifying potential sources of information about these characteristics and examining the reliability of these sources. Examining existing bibliographic records to identify places where work-level information might be recorded and investigating the possibility of extracting information from pools of existing bibliographic records to create provisional work-level records

OLAC CAPC Moving Image Work-Level Records Task Force Final Report and Recommendations, Part IV: Extracting Work-Level Information from Existing MARC Manifestation Records

This subgroup of the Moving Image Work-Level Records Task Force of Online Audiovisual Catalogers (OLAC) Cataloging Policy Committee (CAPC) was charged with identifying places in MARC manifestation-level bibliographic records where work-level information may be encoded and examining a sample of MARC records to see how reliably this information might be extrapolated from existing records. Currently we do not have work-level records for moving images, except for a relatively small number of uniform title authority records, which usually contain only title information. Moving image uniform title authority records usually represent works, but tend to include only enough information to uniquely identify the work or expression rather than a more complete description. However, information about moving image works is often embedded in our current manifestation-level bibliographic records. If we wish to move to an environment where we create and share work-level records for moving images, it would be helpful if we could use automated means to extract data from existing bibliographic records to populate provisional work-level records. These provisional records could later be enhanced, verified and corrected by human beings. Therefore, we are interested in determining the extent to which it is possible to accurately extract work-level information from existing bibliographic records

OLAC CAPC Moving Image Work-Level Records Task Force Final Report and Recommendations, Part IIIa: Operational Definitions: A Thought Experiment

This first section of part three examines the types of information and guidance that will be needed by catalogers in order to create, enhance, correct, and maintain work/primary expression records for moving images, which we have often referred to as work records for short

OLAC CAPC Moving Image Work-Level Records Task Force Final Report and Recommendations, Part IIIb: Data Sources

This second section of part three examines a number of primary and secondary sources that include information about moving images works and provides brief annotations of coverage, assessment of reliability, and a list of elements covered in each source. Print, and free and subscription online sources are included. Information about these sources is being entered into a relational database in the hope that it can be made available on the web in a flexible manner (e.g., by element covered, types of works covered, level of reliability, online vs. print)

Best Practices for Cataloging DVD-Video and Blu-ray Discs Using RDA and MARC21

Best Practices for Cataloging DVD-video and Blu-ray Discs Using RDA and MARC21 builds upon the work of the 2008 Guide to Cataloging DVD and Blu-ray Discs Using AACR2r and MARC21, which in turn updated the 2002 Guide to Cataloging DVDs Using AACR2r Chapters 7 and 9 created by the DVD Cataloging Task Force of OLAC. The focus of this new document is to provide a set of “best practice” recommendations rather than a step-by-step instruction manual for cataloging DVD-video and Blu-ray Discs. One reason for this shift is that RDA cataloging practice is far from settled, particularly in regard to special format materials. Best practice recommendations will likely be easier to manage as RDA instructions evolve. This document is intended for use with Resource Description and Access (RDA) and the MARC21 Format for Bibliographic Data. It should not be considered a substitute for the RDA Toolkit. The best practice recommendations and cataloging examples presented in the document are intended only to clarify RDA principles and instructions used in cataloging DVD-video and Blu- ray Disc formats