Structure of horizon as an orientation cue for the flight of honey bee drones to congregation areas

Error message

• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Notice: Array to string conversion in theme_biblio_tabular() (line 244 of /home/users/miesiec/public_html/pzn/sites/all/modules/biblio/includes/biblio_theme.inc).
• Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2405 of /home/users/miesiec/public_html/pzn/includes/menu.inc).