Why colours of the flower attract different kinds of animals?

Question

I need the answer for my project

Answer 1

there two types of pollination, self pollination and animal pollination.The animal pollinated plants are adapted such that  the growth of  brightly coloured flowers is to attract the pollinators eg bees to the anthers(male part of the flower) for pollen which is then transported to stigma then sytle to the ovary for fertilization to occur.

Answer 2

Flowers are made attractive to get them pollinated by the animals.

Answer 3

Color can do several things. It can offer high contrast markers to guide pollinators to the nectaries or it can differentiate the flower from the background foliage to signal mature flowers with nectar. The specific color signals to the vision of the specific pollinator. However it plays only a part as shape and scent are also important.

Many insects see in wavelengths at either end of the human visual range. Bees see into the UV but not red so bees see from yellow on through blue and beyond. Flowers bees prefer photographed in the UV spectra have guides marking the nectar location. Typically then the flower is yellow with blue or ultraviolet guides.

http://www.cals.ncsu.edu/course/ent591k/...

http://www.cas.vanderbilt.edu/bioimages/...

Snapdragons are classic bee flowers. Bees have short tongues so they like composite flowers like Bluebeard Caryopteris, larkspur, beebalm, heather, & aromatic herbs like thyme or borage.

Flowers that attract lepidoptera vary their color and scent also. Moths at night are offered night blooming blossoms in white or very pale flowers since color is less useful then compared to scent. Butterflies in daylight, often visit the same flowers as hummingbirds because both species see red and near infra-red but butterflies prefer pink or less strident colors like buddleia and dianthus offer while hummers prefer Glory Bower vines, fuschias and Hummingbird vine (Campsis radicans http://www.pbase.com/hjsteed/campsis_rad... ). All offer  tubular flowers so only the species with long tongues can reach the nectar easily. Hover flies may also visit these.

Honeysuckle like Lonicera periclymenum flowers appear pink when seen from above, pale yellow when viewed from below, hence the particular attraction of this species for both butterfly and moth.

http://www.rainyside.com/features/plant_...

Further when you pass by a honeysuckle in the evening; you will be surprised how much stronger its scent is than in the day-time. Moths are able to follow night born fragrances great distances to be guided by color only the last distance.

Flies like Drosophila see with about 70% 'pale' receptors and 30% as 'yellow' receptors. For flies scent is usually more important and may be of rotting meat, sweat, or decaying fruit. Color though is often tied to the scent. Flies attracted to carrion are offered the dark purple reds of flesh.

http://home.att.net/~larvalbugbio/carrio...

http://waynesword.palomar.edu/ww0602.htm

Non-carrion flowers that are pollinated by flies are simple, flat to offer easy landing, & in pale, dull colors. Daisies smell like sweat and attract flies.

http://www.cactus-art.biz/note-book/Dict...

Beetles are important pollinator partners with very ancient types of plants. The flowers they visit are large and strongly scented like magnolias or spice bush with spicy scents and pale colors.

http://www.fs.fed.us/wildflowers/pollina...

http://userwww.sfsu.edu/~biol240/labs/la...