By definition, each species involved in a mutualism must receive a benefit from the While the activities of each partner benefits the other species in some way, Yucca moths and yucca plants have a reciprocal obligate relationship- the. symbiotic relationships Presentation developed for use with the Good. Buddies activity whales. Yucca flowers are pollinated by yucca moths. The moths lay. The yucca (Yucca spp.) and the yucca moth (Tegeticula spp.) share a mutually beneficial relationship, each dependent on the other for survival. The female.
By Beatriz Moisset One of the most extraordinary partnerships between an insect and the plant that it pollinates is that of the yucca and the yucca moth. They are so interdependent that one cannot live without the other. Actually, there are a number of species of yucca, each with its corresponding partner, a species of Tegeticula or Parategeticula moth.
This mutually beneficial relationship probably started as a relationship of exploitation with the moth feeding on the yucca. This is still the case with a number of close relatives of Tegeticula, members of the Prodoxidae family. The yucca moth is a non-descript, small, whitish moth that blends well with the color of the yucca blossoms where it spends most of its brief adult life. A very distinctive feature of Tegeticula is the absence of the long tongue, characteristic of most moths and butterflies.
Instead, it has tentacles around its mouth that serve a very important function and make possible its job as a pollinator. The adult yucca moth does not need to feed because it is so short lived.
Symbiosis of Yucca Moths & Yucca Plant Trees | Home Guides | SF Gate
However, the female gathers pollen, which it holds under its chin with the help of the tentacles. Males and females emerge from their cocoons in the spring in synchrony with the blossoming of the species of yucca with which they are partners. They meet and mate on the yucca blossoms and then the job of the females starts. She visits the anthers of the flower and scrapes the pollen from several of them shaping it into a large lump.
Then she leaves in search of another inflorescence, not just another flower in the same bunch but in a different plant altogether, assuring in this manner the cross pollination of the yucca. When she arrives at a new plant, she inspects the flowers and chooses the ones that are at the right stage.
She can detect the smell of other female moths with her antennae and, if another one has been there already, she searches for another flower.
This is good for the plant and for the future babies because, if too many eggs were laid in one flower ovary, the flower would abort and the larvae would starve. She lays her eggs in the ovary, no more than a handful; once again, if she laid too many eggs, the flower would abort.
They are mutualism, commensalism, and parasitism. Mutualism- Some relationships between organisms make survival easier. For example, the desert yucca plant depends on the yucca moth to pollinate its flowers.
The yucca moth depends on the yucca plant to provide protection and food for its larvae.
12-5 What are symbiotic relationships?
This is an example of mutualism, or a relationship between two different kinds of organisms that benefits them both. A lichen is another example of mutualism. A lichen is really two organisms living together. The two organisms that make up a lichen are fungus and alga.
The Yucca and its Moth – The Prairie Ecologist
The alga provides the fungus with nutrients. The fungus provides the alga with the water and carbon dioxide needed for photosynthesis. Together, they can live where neither organism could survive alone. Commensalism- Look at Figure The organisms on the whale are barnacles. Barnacles are arthropods that cannot move from one plane to another to look for food. By attaching themselves to the body of a whale, barnacles can feed while moving through nutrient-rich water. The whale is not harmed by the barnacles.
This is an example of commensalism. Commensalism is the relationship between two different kinds of organism in which one benefits and the other is unaffected. Parasitism- Parasitism is a relationship between two different kinds of organisms in which one lives in or on the other and causes it harm.
A parasite is an organism that lives in or on another living organism and feeds on it. The organism that the parasite feeds on is called a host.
Ticks, fleas, and leeches are examples of parasites.