• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Angiosperms sustain us—and add spice to our diets
Angiosperms sustain us—and add spice to our diets

... – Sac fungi form saclike asci, which produce sexual spores – They range in size from yeasts to elaborate morels and cup fungi – Some form lichens in association with green algae or cyanobacteria ...
Autumn Magic Black Chokeberry
Autumn Magic Black Chokeberry

... throughout the season. The glossy oval leaves turn an outstanding dark red in the fall. It features an abundance of magnificent black berries from late summer right through to late winter. The smooth gray bark is not particularly outstanding. ...
2009-4 Bat pollination - Bedfordshire Bat Group
2009-4 Bat pollination - Bedfordshire Bat Group

... plants that are pollinated by bats have mechanisms to attract them? There are over a thousand species of bat which pollinate flowers and it is now being realized that plants have evolved specialized mechanisms to attract them. Nectar feeding bats are usually slow flying and can be as manoeuverable a ...
terminal flower
terminal flower

... Soybeans (Glycine max) planted over a three-month period all flowered about the same time ...
Variegated Privet - TLC Garden Centers
Variegated Privet - TLC Garden Centers

... Variegated Privet has grayish green foliage edged in white. The glossy oval leaves remain grayish green through the winter. Neither the flowers nor the fruit are ornamentally significant. The smooth gray bark is not particularly outstanding. Landscape Attributes: Variegated Privet is a dense multi-s ...


... Establish or renovate turf by seed or sod. Prepare soil properly and get good seed to soil contact. Select turf mixes and blends appropriate to the site and to maintenance practices. Northern Illinois – April; Central Illinois – March15-April 15; Southern Illinois – March. • Apply preemergence crabg ...
Angiosperm Reproduction and Biotechnology
Angiosperm Reproduction and Biotechnology

... nectar or pollen. Thus, both plant and pollinator benefit; that is, the relationship is mutually beneficial. Participating in such beneficial relationships with other organisms is very common in the plant kingdom. In fact, in recent evolutionary times, some flowering plants have formed relationships wit ...
Stinging Nettle - Countrylovers.co.uk
Stinging Nettle - Countrylovers.co.uk

... everything together gently so the potatoes don’t disintegrate, and add any seasoning at this stage. • Continue simmering gently until the whole mass has lost more water. VARIATIONS There are other wild ingredients that might make for interesting variations on this recipe. Some of the larger rootstoc ...
or tree, up to 5m height, with a rounded crown.... ash grey, almost always supporting lichens. Branches armed Dovyalis abyssinica
or tree, up to 5m height, with a rounded crown.... ash grey, almost always supporting lichens. Branches armed Dovyalis abyssinica

... physiological action on the human body (Maobe et al., 2013). Plants are recognized for their ability to produce a wealth of secondary metabolites and mankind has used many species for centuries to treat a variety of diseases (Shakti S.S and Selvanayagam M., 2013). Many of these natural products have ...
FORUM Interaction Between Ants and Plants Bearing Extrafloral
FORUM Interaction Between Ants and Plants Bearing Extrafloral

... Ants as Anti-Herbivore Agents of Plants with Nectaries: The Evidence in Cerrado Vegetation Experiments with Qualea spp. (Vochysiaceae). The first attempt to test the potential of ants as anti-herbivore agents of nectary plants in cerrado vegetation was performed by Oliveira et al. (1987) with Qualea ...
Invasive Plant Species Quiz Question 1
Invasive Plant Species Quiz Question 1

... What types of adaptations do some invasive species have that make them able to outcompete native species? – Ability to secrete a chemical into the soil that harms other species – More efficient at removing nutrients from soil – Unpalatable to grazing animals – Extreme resilience All of the above ...
Lecture 2 Plant growth
Lecture 2 Plant growth

... also known as plant growth regulators (PGRs) or phytohormones, are chemicals that regulate plant growth. Plant hormones are often not transported to other parts of the plant and production is not limited to specific locations. occur in extremely low concentrations Plants lack glands that produ ...
Guelder Rose
Guelder Rose

... up to 12 feet tall. Its leaves are coarsely toothed and maplelike in appearance, with three shallow lobes. The white flowers occur in wide clusters, the outer of which are sterile and five-petaled, forming a ring around the smaller, less showy, fertile flowers. In August, the bright red, juicy berri ...
this PDF file - Sydney Open Journals online
this PDF file - Sydney Open Journals online

... Distribution and ecology: Currently known from two vouchered populations in New South Wales. 1. At Minnie Water (c. 60 km NNE of Coffs Harbour), in and around Yuraygir National Park, where found in Melaleuca forest on sand as well as in tall open Banksia heath on exposed headlands (e.g. east side of ...
Peppers - lookkamloops.ca
Peppers - lookkamloops.ca

... used in Jamaican and other Caribbean cooking, and have a flavour profile that is quite distinct from its close cousin the Habanero. Give this variety a little extra time to mature and as much heat as possible Matures in 120 days. (open pollinated seeds) ...
vegetative organs - NWIC Blogs
vegetative organs - NWIC Blogs

... Welcome to Northwest Plants Northwest Indian College ...
Seed Reproduction.pptx
Seed Reproduction.pptx

... 1.  Pollen grains from the stamen land on the sNcky sNgma of the pisNl. 2.  The pollen tube grows from the pollen grain down through the pisNl to the ovary (eggs). 3.  Sperm travels down the pollen tube and ferNlizes the egg, develops from zygote to embryo 4.  Parts of the ovule become the s ...
monitoring system plant phenophase and phenological event
monitoring system plant phenophase and phenological event

... Phenophase and Phenological Event Definitions Phenophase: An observable stage or phase in the annual life cycle of a plant or animal that can be defined by a start and end point. A phenophase generally has a duration of a few days or weeks. Examples include the period over which newly emerging leave ...
Does homeostasis or disturbance of homeostasis in minimum leaf
Does homeostasis or disturbance of homeostasis in minimum leaf

... 2010). These studies raise questions concerning the nature of the mechanisms involved in both stomatal strategies and how the same individuals can switch from one to the other. We can also wonder if such behavior is typical of cultivated grapevines or if it can be extended to lianas in general and p ...


... The Constant Process of Trilliums –by Andy Hahn, Master Naturalist In studying the form and shape of plants, the poet Goethe noticed two forces at work: those of contraction and expansion. In his studies, Dick van Romunde called these two tendencies suctioning and swelling. Looking closely, we can s ...
Chapter 17 Seedless Vascular Plants
Chapter 17 Seedless Vascular Plants

... • Ground- vascular embedded within ground • Root, stem and leaf vary in these tissues ...
Ragweed (Ambrosia artemisiifolia L.) Genus: Ambrosia (am
Ragweed (Ambrosia artemisiifolia L.) Genus: Ambrosia (am

... which, in ancient mythology, was the nectar of the gods. This food would make those who ate or drank it immortal. Now it refers to the group of plants which produce great amounts of tiny air borne pollen causing hay fever. Species: artemisiifolia (ar-te-miz-ee-eye-FOH-lee-uh) Means to have foliage l ...
Aquatic Plant Management: Benthic Mats
Aquatic Plant Management: Benthic Mats

... Benthic mats can be up to 100% effective in controlling aquatic plants. Both nuisance weeds and invasive plant species can be controlled with this method. Existing vegetation can be removed or new vegetation growth can be prevented. This method is not selective and will target any sediment dependent ...
Mature plants of Lolium temulentum L. have been shown (Evans
Mature plants of Lolium temulentum L. have been shown (Evans

... It has also been found that only a few square centimetres of one leaf need be exposed to this long day, and that the intensity of light during the supplementary period of illumination need be only 1-2 f.c. for inflorescence initiation to occur. This preeminent sensitivity of the species to induction ...
Rhododendron groenlandicum - ERA
Rhododendron groenlandicum - ERA

... and Bliss (1983) concluded that germination occurred without cold stratification. Relatively high constant temperatures (15 to 19°C) are required for germination. Germination rates increase in the presence of light. Germination and establishment in water-saturated substrates can occur, however seedl ...
< 1 ... 160 161 162 163 164 165 166 167 168 ... 499 >

Plant ecology



This article is about the scientific discipline, for the journal see Plant EcologyPlant ecology is a subdiscipline of ecology which studies the distribution and abundance of plants, the effects of environmental factors upon the abundance of plants, and the interactions among and between plants and other organisms. Examples of these are the distribution of temperate deciduous forests in North America, the effects of drought or flooding upon plant survival, and competition among desert plants for water, or effects of herds of grazing animals upon the composition of grasslands.A global overview of the Earth's major vegetation types is provided by O.W. Archibold. He recognizes 11 major vegetation types: tropical forests, tropical savannas, arid regions (deserts), Mediterranean ecosystems, temperate forest ecosystems, temperate grasslands, coniferous forests, tundra (both polar and high mountain), terrestrial wetlands, freshwater ecosystems and coastal/marine systems. This breadth of topics shows the complexity of plant ecology, since it includes plants from floating single-celled algae up to large canopy forming trees.One feature that defines plants is photosynthesis. One of the most important aspects of plant ecology is the role plants have played in creating the oxygenated atmosphere of earth, an event that occurred some 2 billion years ago. It can be dated by the deposition of banded iron formations, distinctive sedimentary rocks with large amounts of iron oxide. At the same time, plants began removing carbon dioxide from the atmosphere, thereby initiating the process of controlling Earth's climate. A long term trend of the Earth has been toward increasing oxygen and decreasing carbon dioxide, and many other events in the Earths history, like the first movement of life onto land, are likely tied to this sequence of events.One of the early classic books on plant ecology was written by J.E. Weaver and F.E. Clements. It talks broadly about plant communities, and particularly the importance of forces like competition and processes like succession. Although some of the terminology is dated, this important book can still often be obtained in used book stores.Plant ecology can also be divided by levels of organization including plant ecophysiology, plant population ecology, community ecology, ecosystem ecology, landscape ecology and biosphere ecology.The study of plants and vegetation is complicated by their form. First, most plants are rooted in the soil, which makes it difficult to observe and measure nutrient uptake and species interactions. Second, plants often reproduce vegetatively, that is asexually, in a way that makes it difficult to distinguish individual plants. Indeed, the very concept of an individual is doubtful, since even a tree may be regarded as a large collection of linked meristems. Hence, plant ecology and animal ecology have different styles of approach to problems that involve processes like reproduction, dispersal and mutualism. Some plant ecologists have placed considerable emphasis upon trying to treat plant populations as if they were animal populations, focusing on population ecology. Many other ecologists believe that while it is useful to draw upon population ecology to solve certain scientific problems, plants demand that ecologists work with multiple perspectives, appropriate to the problem, the scale and the situation.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report