Tourist beaches for recreational activities have a low density of marine litter (minimum 0.01 and maximum 0.72 items/m 2) due to regular clean-ups, whereas around non-tourist beaches, there is a greater variety of sources and accumulation (minimum 0.31 and maximum 5.41 items/m 2). Mangroves are important hotspots for plastic accumulation, with densities above eight items/m 2 (minimum 8.38 and maximum 10.38 items/m 2), while back-beach vegetation (minimum 1.43 and maximum 7.03 items/m 2) also removes and stores a portion of the marine litter that arrives on the beaches. We observed that certain ecosystems, principally back-beach vegetation and mangroves, act as crucial marine litter accumulation zones. At the same time, the distribution characteristics of marine litter in the different compartments facilitated a more dynamic understanding of the load of marine litter supplied by the islands, both locally and externally. In this study our aim is to establish the distribution pattern and potential sources of solid waste in the different marine/coastal ecosystems of the islands of Providencia and Santa Catalina (SBR), as well as assess any interconnections between these ecosystems. Marine protected areas are under pressure from various stressors, one of the most important issues being pollution by marine litter, especially plastic. This can be used to hide decorative parts of a web page, such as icon fonts - that are not meant to be read by assistive technologies.Ī focusable element with aria-hidden="true" is ignored as part of the reading order, but still part of the focus order, making it’s state of visible or hidden unclear.The SEAFLOWER Biosphere Reserve (SBR) is the largest Marine Protected Area in the Caribbean Sea and the second largest in Latin America. The rule applies to any element with an aria-hidden="true" attribute.īy adding aria-hidden="true" to an element, content authors ensure that assistive technologies will ignore the element. Note: Using aria-hidden="false" on content that is a descendent of an element that is hidden using aria-hidden="true" will NOT expose that content to the accessibility API and it will not be accessible to screen readers or other assistive technologies. If aria-hidden is used to hide visible content from screen readers, the identical or equivalent meaning and functionality must be exposed to assistive technologies. Aria-hidden may be used with extreme caution to hide visibly rendered content from assistive technologies only if the act of hiding this content is intended to improve the experience for users of assistive technologies by removing redundant or extraneous content. Using the aria-hidden="true" attribute on an element removes the element and ALL of its child nodes from the accessibility API making it completely inaccessible to screen readers and other assistive technologies. The following examples FAIL the aria-hidden="true" elements do not contain focusable elements rule:įocusable form field, incorrectly disabled.
Īria-hidden can’t be reset once set to true on an ancestor. Ĭontent made unfocusable through disabled. Some textĬontent made unfocusable through tabindex.
The following examples PASS the aria-hidden="true" elements do not contain focusable elements rule:Ĭontent not focusable by default. Use appropriate ARIA roles, states, and properties.
Fix the issue by ensuring the value inside each attribute is spelled correctly and corresponds to a valid value.
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