Since 1950, half of the world's coral reefs have already been lost.(然而,珊瑚礁特别容易受到气候变化的影响。过度捕捞和污染也被证明对它们非常 危险。自1950年以来,世界上一半的珊瑚礁已经消失。)”可知,目前珊瑚礁面临灭绝的危险。故选B项。 【9题详解】 细节理解题。根据文章第三段 “During a ...
1.According to paragraph 1, all of the following are needed for the growth of coral reefs EXCEPT A. a solid base to grow on B. exposure to light C. the presence of river-borne sediment D. ocean temperatures of 21 °C or higher ...
The growth of coral reefs has been a controversial subject ever since Darwin'ssubsidence theory. Scientists have argued over the major factors affecting growth, but most have agreed that reefs grow dominantly along their windward margins, a characteristic displayed in the Permianand Devonianreefs of ...
Over 70% of the world's coastlines are eroding. With millions worldwide reliant on the protection of coral reefs, habitats are at risk around the world.
1. Overview of Coral Reefs and Growth Rates Coral reefs are often cited as living structures that can grow to enormous sizes, leading many to conclude that such formations must be hundreds of thousands (or even millions) of years old. Reefs are composed primarily of calcium carbonate (limestone...
The natural recovery of healthy reefs relies on the replenishment success of scleractinian coral populations, the main reef-builders, through coral recruitment (Gilmour et al., 2013; Gouezo et al., 2019; Harrison, 2011; Richmond, 1997). However, successful coral recruitment requires life history ...
The crown-of-thorns sea star (COTS, Acanthaster sp.) is a coral predator that, in population outbreaks, causes major coral loss in Indo-Pacific reefs. Curr
Describing life history dynamics of functionally important species is critical for successful management. Barrel sponges (Xestospongia spp.) fill ecologically important roles on coral reefs due to their large size and water column interactions. Studies o
Neudecker S (1977) Transplant experiments to test the effects of fish grazing on coral distribution. Proc 3rd Int Coral Reef Symp 1:317–323 Google Scholar Ohlhorst SL (1980) Jamaican coral reefs: important biological and physical parameters. PhD thesis, Yale University, New Haven, Conn Google...
Review of the snappers of the genus lutjanus (pisces:lutjanidae) from the Indo-Pacific, with the description of a new species Snappers of the genus Lutjanus (family Lutjanidae) represented in the Indo-west Pacific region by 39 species, are primarily inhabitants of shallow coral reefs, although...