Author’s Guide

1. The paper should be organized following these headings: Title, Abstract, Introduction, Materials and Methods, Results, Discussion, Acknowledgment, Literature Cited, Captions for Tables, Captions for Figures, Tables, and Figures. The Discussion should already include the Conclusions. The Literature Cited should substantially consist of articles published in ISI or peerreviewed journals. Citations of unpublished reports and theses should be minimized.

2. Type the entire manuscript should be double-spaced on a A4-sized white bond paper about 21 x 30 cm (8.27 x 11.69 in) on one side only with 2.5 cm margins all around using a 12 point normalsize type (Times New Roman, size 12 font). Literature Cited, Acknowledgment, Table Titles and Figure Legends should also be typed double-spaced. All pages including title page, figures and tables should be numbered consecutively. Line number for each page should also be included.

3. The Title Page should include the author’s full names and affiliations, a running title of not more than 40 characters, the author’s postal address, email address, and telephone and fax numbers.

4. The Abstract should not exceed 250 words.

5. There should be three spaces before and after the major headings and two spaces before and after the sub-headings. Footnotes should not be used, unless necessary for better comprehension.

6. Acronyms or unfamiliar abbreviations should be spelled out when these are mentioned for the first time in the text.

7. The scientific name of the species should be given when it is first mentioned in the text and the common name should be used in succeeding references. Underline or italicize scientific names.

8. Numbers should not be spelled out unless they are used to start a sentence.

9. The metric system only or the International System of Units should be used. Abbreviations of units only beside numerals (e.g. 6 m) should be used; otherwise, the units (e.g. kilometers from here) should be spelled out. Plural forms or periods for abbreviations of units should not be used. The bar for compound units (e.g. 1kg/ha/yr) should be used. A zero should be used before the decimal in numbers less than 1 (e.g. 0.25).

10 When preparing Tables and Figures, the journal’s printed page of 8.27 x 11.69 in and the reduction that will be necessary should be considered. Titles of Tables and captions of Figures should be as short as possible and should be understandable without referring to the text. Captions of figures should be typed double-spaced in a separate sheet. Figures should consist only of simple line drawings, computer-generated graphics or good quality black and white photographs. Figures should be identified by writing at the back the figure number as they appear in the text and the author’s name. Labels of Figures should be of such a size so that these are still legible even after reducing the size by as much as 50%. Use preferably Corel-Draw, Adobe Photoshop or Excel for computergenerated graphics. Figures and photographs should be submitted in TIFF format with resolution at 300 dpi. Graphs should not have horizontal grid lines and should not be enclosed in a box. Vertical lines should not be used in the tables. Horizontal lines in the table are allowed only for the top line, table heading and bottom line. Each table should be labeled at the top with an Arabic numeral followed by the table title. Footnotes and explanatory material should be inserted below the table.

11. References should be cited in the text as author (year). Citations for three or more authors should be cited as (first author et al. year), references in press as (author, in press), and unpublished references as (author, unpubl. data or author, pers. comm.). If two or more references are cited, these should be arranged by year (e.g. Formacion 1987; Geduspan 1990; Torres 1992).

12. In the Literature Cited, list down references as follows: