نتایج جستجو برای: specially birds and flowers
تعداد نتایج: 16835912 فیلتر نتایج به سال:
S ome mathematicians are birds, others are frogs. Birds fly high in the air and survey broad vistas of mathematics out to the far horizon. They delight in concepts that unify our thinking and bring together diverse problems from different parts of the landscape. Frogs live in the mud below and see only the flowers that grow nearby. They delight in the details of particular objects, and they sol...
Momordica charantia L. belongs to the family Curcubitaceae and it is very common in many Brazilian regions. The plant is a liana with flowers and yellow fruits that present red seeds when are ripe. Popularly known as "melão-de-sãocaetano", "melão amargo" or "cabaço-amargo", it possesses many uses: antidiabetic, antihelmintic, antmicrobial, anticancerigenous and antioxidant. The phytochemical pr...
Floral nectar is an important attractant and reward for visitors, often produced in synchrony with peak activity of pollinators. Aloe peglerae flowers winter, previous studies have shown that it pollinated primarily by diurnal generalist birds, small mammals making additional contributions to pollination at night. Nectar during the day main but rewards available are unknown. This paper investig...
Globally, people feed wild animals to interact with nature. Attracting nectarivorous birds gardens using artificial nectar feeders is increasingly popular, yet little known about its influence on and the plants they pollinate. We investigated effects of African their plant mutualists, by conducting feeding experiments in natural vegetation along suburban edge Cape Peninsula, South Africa. compa...
Cases of imperfect or non-model mimicry are common in plants and animals and challenge intuitive assumptions about the nature of directional selection on mimics. Many non-rewarding flower species do not mimic a particular species, but attract pollinators through ‘generalised food deception’. Some predatory animals also attract pollinators by resembling flowers, perhaps the most well known, yet ...
Background: Plants remains a source of food as wells medicine and healthcare needs since the dawn civilization. plants derived products are available in crude form well dosage forms which widely prescribed by medical practitioners believed safe to consume compared synthetic compounds based medicines. Many bioactive from plant sources utilized various health problems. A vast research on medicina...
—We documented patterns of nectar availability and nectarivorous bird abundance over ~ years at nine study sites across an ,-m elevational gradient on Hawaii Island to investigate the relationship between resource variation and bird abundance. Flower density (flowers ha−) and nectar energy content were measured across the gradient for the monodominant `Ōhi`a (Metrosideros polymorpha). Fou...
This paper reviews ecological interactions of birds with Pacific madrone (Arbutus menziesii). Results from a tree inventory in the Magnolia area during 1994–95 and a literature search are summarized. We surveyed 126 trees and found 2 Northern flicker (Colaptes auratus) cavity nests and 35 cup nests. American Crows (Corvus brachyrhynchos) occupied the cup nests. Madrone is a substrate for nestin...
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