Sexual Reproduction in Coral Reefs
Sexual Reproduction in Coral Reefs bsc 1005
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This 3 page Class Notes was uploaded by Leah Burkett on Saturday October 10, 2015. The Class Notes belongs to bsc 1005 at Florida State University taught by Carolyn Schultz in Fall 2015. Since its upload, it has received 9 views. For similar materials see General Biology in Biological Sciences at Florida State University.
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Date Created: 10/10/15
Sexual Reproduction and thus is a key part of most life cycles But sexual reproduction involves many risks Fertilization Mates may not nd each other 0 Male and female gametes may not be ready at the same time and place Development 0 Not all genetics mixes are compatible 0 Early development is vulnerable to environment stresses Recruitment 0 A place to live may bra hard to and 0 Small young organisms are defenseless Help to ensure that male and female gametes nd each other 0 Often involves complex mating rituals l the female gets to choose her mate 0 Eggs cared for by females until hey hatch as larvae Eggs provisioned by female and deposited in a nest 0 Young carries within the female until they are born Eggs cared for on bodies of males until they hatch sea dragon and Sea horses Eggs cared for in mouths or territories of males Which is not a risk of sexual reproduction release of gametes into the water is very common on coral reefs Risks include 0 Eggs and sperm not released at the same A It may be hard to nd a mate B Male and female may not be ready at the t39me same time Densnty of gametes too low Q Early developmental Predation on adults too low Stages are vulnerable Predation on adults that have aggravated to environmenta fertilization stresses 39 0 Juvenile stages of many coral reef animals E Some mixtures of are plantlike genetic variation 0 Are suited for life in the water column and material are look nothing like reefdwelling adults incompatible Many are small transparent and covered with spines Larvae may travel hundreds of miles before they settle on the reef Coral eggs and larvae are smooth opaque and vulnerable to predators produces genetically identical copies of the present Avoids many risks of sexual reproduction BUT Does not generate variation Larvae contribute to the continuing existence of coral reef ecosystems within a region by A Being immune to predation B Being very small D Having shapes that differ from those of their parents E Being able to withstand extremes of temperature and other environmental factors Describe an important risk of reproduction by spawning Describe an important bene t of reproduction by spawning Linked Ecosystems Mangroves Coral Reefs Open Ocean Seagrass meadows F Flowering plants have special strategies to cope with salty lowoxygen conditions Mangroves are simultaneously marine and terrestrial Underwater a diverse and dense community lter feeder heaven Rich hunting ground for predators Nursery habitat for reef animas Mangroves are destroyed by Wars Shrimp farms Mangrove swamps differ from seagrass meadows in A Being dominated by owering plants C Serving as bursary habitats D Helping to prevent sediment from smothering coral reefs are also Like mangroves But are always submerged and propagate asexually 0 Rich feeding grounds with little shelter fro prey Camou age or armor is required Huge herds of herbivores grazed seagrasses until humans nearly exterminated them 0 Many sh shelter on the reef during the day and fee in the seagrass at night Animals move among reefs seagrass and mangroves some as they grow and some on a daily cycle dispersal of larvae links coral reefs to each other Currents link distant reef across Open Ocean 1 What are 2 characteristics that mangroves and seagrass meadow have in common Help to prevent sediment from smothering coral reefs and are both highly productive differ from each other Seagrass meadows are NOT A B Highly productive ecosystems Nursery habitats for economically important animals Binders of sediments Dominated by owering plants even though they are completely submerged E 2 What are 2 ways in which mangroves and seagrass meadows Mangrove trees are both terrestrial and marine ecosystems Mangrove trees are also used as a shelter for marine life while seagrass does not serve as a great place for marine life to hide from predators
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