Plant ecology

Short description: Study of effect of the environment on the abundance and distribution of plants

A tropical plant community on Diego Garcia Rangeland monitoring using Parker 3-step Method, Okanagan Washington 2002

Plant ecology is a subdiscipline of ecology that studies the distribution and abundance of plants, the effects of environmental factors upon the abundance of plants,[1] and the interactions among plants and between plants and other organisms.[2] 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.[3] 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. Photosynthesis is the process of a chemical reactions to create glucose and oxygen, which is vital for plant life.[4] 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 Earth's history, like the first movement of life onto land, are likely tied to this sequence of events.[2][5]

One of the early classic books on plant ecology was written by J.E. Weaver and F.E. Clements.[6] It talks broadly about plant communities, and particularly the importance of forces like competition and processes like succession. The term ecology itself was coined by German biologist Ernst Haeckel.[7]

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.[2][8]

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.[9] 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.[10] 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.[2]

## Contents

* 1 History
* 2 Distribution
* 3 Biological interactions
* 3.1 Competition
* 3.2 Mutualism
* 3.3 Parasitism
* 3.4 Commensalism
* 3.5 Herbivory
* 4 Other topics
* 4.1 Abundance
* 4.2 Colonisation and local extinction
* 4.3 Life forms
* 4.4 Reproduction
* 5 See also
* 6 References
* 6.1 Further reading

## History

Main article: Earth:History of ecology

Alexander von Humboldt's work connecting plant distributions with environmental factors played an important role in the genesis of the discipline of plant ecology.

Plant ecology has its origin in the application of plant physiology to the questions raised by plant geographers.[11][12]: 13–16 Carl Ludwig Willdenow was one of the first to note that similar climates produced similar types of vegetation, even when they were located in different parts of the world. Willdenow's student, Alexander von Humboldt, used physiognomy to describe vegetation types and observed that the distribution vegetation types was based on environmental factors. Later plant geographers who built upon Humboldt's work included Joakim Frederik Schouw, A.P. de Candolle, August Grisebach and Anton Kerner von Marilaun. Schouw's work, published in 1822, linked plant distributions to environmental factors (especially temperature) and established the practice of naming plant associations by adding the suffix -etum to the name of the dominant species. Working from herbarium collections, De Candolle searched for general rules of plant distribution and settled on using temperature as well.[12]: 14–16 Grisebach's two-volume work, Die Vegetation der Erde nach Ihrer Klimatischen Anordnung, published in 1872, saw plant geography reach its "ultimate form" as a descriptive field.[11]: 29

Starting in the 1870s, Swiss botanist Simon Schwendener, together with his students and colleagues, established the link between plant morphology and physiological adaptations, laying the groundwork for the first ecology textbooks, Eugenius Warming's Plantesamfund (published in 1895) and Andreas Schimper's 1898 Pflanzengeographie auf Physiologischer Grundlage.[11] Warming successfully incorporated plant morphology, physiology taxonomy and biogeography into plant geography to create the field of plant ecology. Although more morphological than physiological, Schimper's has been considered the beginning of plant physiological ecology.[12]: 17–18 Plant ecology was initially built around static ideas of plant distribution; incorporating the concept of succession added an element to change through time to the field. Henry Chandler Cowles' studies of plant succession on the Lake Michigan sand dunes (published in 1899) and Frederic Clements' 1916 monograph on the subject established it as a key element of plant ecology.[11]

Plant ecology developed within the wider discipline of ecology over the twentieth century. Inspired by Warming's Plantesamfund, Arthur Tansley set out to map British plant communities. In 1904 he teamed up with William Gardner Smith and others involved in vegetation mapping to establish the Central Committee for the Survey and Study of British Vegetation, later shortened to British Vegetation Committee. In 1913, the British Vegetation Committee organised the British Ecological Society (BES), the first professional society of ecologists.[13] This was followed in 1917 by the establishment of the Ecological Society of America (ESA); plant ecologists formed the largest subgroup among the inaugural members of the ESA.[11]: 41

Cowles' students played an important role in the development of the field of plant ecology during the first half of the twentieth century, among them William S. Cooper, E. Lucy Braun and Edgar Transeau.[12]: 23

Graphical timeline of plant ecologists

<timeline> ImageSize = width:1200px height:auto barincrement:15px PlotArea = left:10px bottom:50px top:10px right:10px

Period = from:1750 till:2050 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:50 start:1750 ScaleMinor = unit:year increment:10 start:1750 TimeAxis = orientation:hor AlignBars = justify

Colors =

#legends
id:CAR	  value:claret
id:ANK 	 value:rgb(0.4,0.3,0.196)
id:HER	  value:teal
id:HAD	  value:green
id:OMN	  value:blue
id:black        value:black
id:white        value:white
id:1900s   value:rgb(0.94,0.25,0.24)
id:2000s     value:rgb(0.2,0.7,0.79)
id:2000syears     value:rgb(0.52,0.81,0.91)
id:1900syears   value:rgb(0.95,0.56,0.45)
id:1700s   value:rgb(0.5,0.78,0.31)
id:1700syears   value:rgb(0.63,0.78,0.65)
id:1800syears     value:rgb(0.95,0.98,0.11)
id:1800s     value:rgb(0.999999,0.9,0.1)

BarData=

bar:eratop
bar:space
bar:periodtop
bar:space
bar:NAM1
bar:NAM2
bar:NAM3
bar:NAM4
bar:NAM5
bar:NAM6
bar:NAM7
bar:NAM8
bar:NAM9
bar:NAM10

bar:space
bar:period
bar:space
bar:era

PlotData=

align:center textcolor:black fontsize:M mark:(line,black) width:25
shift:(7,-4)

bar:periodtop
from: 1750    till: 1760    color:1700syears    text:50s
from: 1760    till: 1770    color:1700syears    text:60s
from: 1770    till: 1780    color:1700syears    text:70s
from: 1780    till: 1790    color:1700syears    text:80s
from: 1790    till: 1800    color:1700syears    text:90s
from: 1800    till: 1810    color:1800syears    text:00s
from: 1810    till: 1820    color:1800syears    text:10s
from: 1820    till: 1830    color:1800syears    text:20s
from: 1830    till: 1840    color:1800syears    text:30s
from: 1840    till: 1850    color:1800syears    text:40s
from: 1850    till: 1860    color:1800syears    text:50s
from: 1860    till: 1870    color:1800syears    text:60s
from: 1870    till: 1880    color:1800syears    text:70s
from: 1880    till: 1890    color:1800syears    text:80s
from: 1890    till: 1900    color:1800syears    text:90s
from: 1900    till: 1910    color:1900syears    text:00s
from: 1910    till: 1920    color:1900syears    text:10s
from: 1920    till: 1930    color:1900syears    text:20s
from: 1930    till: 1940    color:1900syears    text:30s
from: 1940    till: 1950    color:1900syears    text:40s
from: 1950    till: 1960    color:1900syears    text:50s
from: 1960    till: 1970    color:1900syears    text:60s
from: 1970    till: 1980    color:1900syears    text:70s
from: 1980    till: 1990    color:1900syears    text:80s
from: 1990    till: 2000    color:1900syears    text:90s
from: 2000    till: 2010    color:2000syears    text:00s
from: 2010    till: 2020    color:2000syears    text:10s
from: 2020    till: 2030    color:2000syears    text:20s
from: 2030    till: 2040    color:2000syears    text:30s
from: 2040    till: 2050    color:2000syears    text:40s

bar:eratop
from: 1750    till: 1800    color:1700s    text:18th
from: 1800    till: 1900    color:1800s    text:19th
from: 1900    till: 2000    color:1900s    text:20th
from: 2000    till: 2050    color:2000s    text:21st

PlotData=

align:left fontsize:M mark:(line,white) width:5 anchor:till align:left

color:1700s bar:NAM1  from:1769    till:1859 text:Alexander von Humboldt
color:1800s bar:NAM2  from:1809    till:1882 text:Charles Darwin
color:1800s bar:NAM3  from:1834    till:1919 text:Ernst Haeckel
color:1800s bar:NAM4  from:1841    till:1924 text:Eugenius Warming
color:1800s bar:NAM5  from:1855    till:1942 text:Clinton Hart Merriam
color:1800s bar:NAM6  from:1869    till:1939 text:Henry Chandler Cowles
color:1800s bar:NAM7  from:1874    till:1945 text:Frederic Clements
color:1800s bar:NAM8  from:1882    till:1979 text:Henry Gleason
color:1800s bar:NAM9  from:1889    till:1971 text:Emma Lucy Braun
color:1900s bar:NAM10  from:1910    till:1997 text:William Billings

PlotData=

align:center textcolor:black fontsize:M mark:(line,black) width:25

bar:period
from: 1750    till: 1760    color:1700syears    text:50s
from: 1760    till: 1770    color:1700syears    text:60s
from: 1770    till: 1780    color:1700syears    text:70s
from: 1780    till: 1790    color:1700syears    text:80s
from: 1790    till: 1800    color:1700syears    text:90s
from: 1800    till: 1810    color:1800syears    text:00s
from: 1810    till: 1820    color:1800syears    text:10s
from: 1820    till: 1830    color:1800syears    text:20s
from: 1830    till: 1840    color:1800syears    text:30s
from: 1840    till: 1850    color:1800syears    text:40s
from: 1850    till: 1860    color:1800syears    text:50s
from: 1860    till: 1870    color:1800syears    text:60s
from: 1870    till: 1880    color:1800syears    text:70s
from: 1880    till: 1890    color:1800syears    text:80s
from: 1890    till: 1900    color:1800syears    text:90s
from: 1900    till: 1910    color:1900syears    text:00s
from: 1910    till: 1920    color:1900syears    text:10s
from: 1920    till: 1930    color:1900syears    text:20s
from: 1930    till: 1940    color:1900syears    text:30s
from: 1940    till: 1950    color:1900syears    text:40s
from: 1950    till: 1960    color:1900syears    text:50s
from: 1960    till: 1970    color:1900syears    text:60s
from: 1970    till: 1980    color:1900syears    text:70s
from: 1980    till: 1990    color:1900syears    text:80s
from: 1990    till: 2000    color:1900syears    text:90s
from: 2000    till: 2010    color:2000syears    text:00s
from: 2010    till: 2020    color:2000syears    text:10s
from: 2020    till: 2030    color:2000syears    text:20s
from: 2030    till: 2040    color:2000syears    text:30s
from: 2040    till: 2050    color:2000syears    text:40s

bar:era
from: 1750    till: 1800    color:1700s    text:18th
from: 1800    till: 1900    color:1800s    text:19th
from: 1900    till: 2000    color:1900s    text:20th
from: 2000    till: 2050    color:2000s    text:21st

</timeline>

## Distribution

Main articles: Biology:Phytogeography and Species distribution

World biomes are based upon the type of dominant plant.

Plant distributions is governed by a combination of historical factors, ecophysiology and biotic interactions. The set of species that can be present at a given site is limited by historical contingency. In order to show up, a species must either have evolved in an area or dispersed there (either naturally or through human agency), and must not have gone locally extinct. The set of species present locally is further limited to those that possess the physiological adaptations to survive the environmental conditions that exist.[14] This group is further shaped through interactions with other species.[15]: 2–3

Plant communities are broadly distributed into biomes based on the form of the dominant plant species.[14] For example, grasslands are dominated by grasses, while forests are dominated by trees. Biomes are determined by regional climates, mostly temperature and precipitation, and follow general latitudinal trends.[14] Within biomes, there may be many ecological communities, which are impacted not only by climate and a variety of smaller-scale features, including soils, hydrology, and disturbance regime.[14] Biomes also change with elevation, high elevations often resembling those found at higher latitudes.[14]

## Biological interactions

### Competition

Plants, like most life forms, require relatively few basic elements: carbon, hydrogen, oxygen, nitrogen, phosphorus and sulphur; hence they are known as CHNOPS life forms. There are also lesser elements needed as well, frequently termed micronutrients, such as magnesium and sodium. When plants grow in close proximity, they may deplete supplies of these elements and have a negative impact upon neighbours.[16] Competition for resources vary from complete symmetric (all individuals receive the same amount of resources, irrespective of their size) to perfectly size symmetric (all individuals exploit the same amount of resource per unit biomass) to absolutely size-asymmetric (the largest individuals exploit all the available resource). The degree of size asymmetry has major effects on the structure and diversity of ecological communities. In many cases (perhaps most) the negative effects upon neighbours arise from size asymmetric competition for light. In other cases, there may be competition below ground for water, nitrogen, or phosphorus. To detect and measure competition, experiments are necessary; these experiments require removing neighbours, and measuring responses in the remaining plants.[17] Many such studies are required before useful generalizations can be drawn.

Overall, it appears that light is the most important resource for which plants compete, and the increase in plant height over evolutionary time likely reflects selection for taller plants to better intercept light. Many plant communities are therefore organized into hierarchies based upon the relative competitive abilities for light.[17] In some systems, particularly infertile or arid systems, below ground competition may be more significant.[18] Along natural gradients of soil fertility, it is likely that the ratio of above ground to below ground competition changes, with higher above ground competition in the more fertile soils.[19][20] Plants that are relatively weak competitors may escape in time (by surviving as buried seeds) or in space (by dispersing to a new location away from strong competitors.)

In principle, it is possible to examine competition at the level of the limiting resources if a detailed knowledge of the physiological processes of the competing plants is available. However, in most terrestrial ecological studies, there is only little information on the uptake and dynamics of the resources that limit the growth of different plant species, and, instead, competition is inferred from observed negative effects of neighbouring plants without knowing precisely which resources the plants were competing for. In certain situations, plants may compete for a single growth-limiting resource, perhaps for light in agricultural systems with sufficient water and nutrients, or in dense stands of marsh vegetation, but in many natural ecosystems plants may be colimited by several resources, e.g. light, phosphorus and nitrogen at the same time.[21]

Therefore, there are many details that remain to be uncovered, particularly the kinds of competition that arise in natural plant communities, the specific resource(s), the relative importance of different resources, and the role of other factors like stress or disturbance in regulating the importance of competition.[2][22]

### Mutualism

Mutualism is defined as an interaction "between two species or individuals that is beneficial to both". Probably the most widespread example in plants is the mutual beneficial relationship between plants and fungi, known as mycorrhizae. The plant is assisted with nutrient uptake (mainly phosphate), while the fungus receives carbohydrates.[23] Some the earliest known fossil plants even have fossil mycorrhizae on their rhizomes.[2]

The flowering plants are a group that have evolved by using two major mutualisms. First, flowers are pollinated by insects. This relationship seems to have its origins in beetles feeding on primitive flowers, eating pollen and also acting (unwittingly) as pollinators. Second, fruits are eaten by animals, and the animals then disperse the seeds. Thus, the flowering plants actually have three major types of mutualism, since most higher plants also have mycorrhizae.[2]

Plants may also have beneficial effects upon one another, but this is less common. Examples might include "nurse plants" whose shade allows young cacti to establish. Most examples of mutualism, however, are largely beneficial to only one of the partners, and may not really be true mutualism. The term used for these more one-sided relationships, which are mostly beneficial to one participant, is facilitation. Facilitation among neighboring plants may act by reducing the negative impacts of a stressful environment.[24] In general, facilitation is more likely to occur in physically stressful environments than in favorable environments, where competition may be the most important interaction among species.[25]

Commensalism is similar to facilitation, in that one plant is mostly exploiting another. A familiar example is the epiphytes which grow on branches of tropical trees, or even mosses which grow on trees in deciduous forests.

It is important to keep track of the benefits received by each species to determine the appropriate term. Although people are often fascinated by unusual examples, it is important to remember that in plants, the main mutualisms are mycorrhizae, pollination, and seed dispersal.[2]

### Parasitism

Parasitism in biology refers to an interaction between different species, where the parasite (one species) benefits at the expense of the host (the other species). Parasites depend on another organism (their host) for survival in general, which usually includes both habitat and nutrient requirements at the very minimum.[26] Parasitic plants attach themselves to host plants via a haustoria to the xylem and/or phloem.[27] Many parasitic plants are generalists and are able to attack multiple hosts at the same time, greatly affecting community structures. Host species' growth, reproduction, and metabolism are affected by the parasite due to the nutrients, water, and carbon being taken by the parasite.[27] They are also able to alter competitive interactions among hosts and indirectly affect competition in the community.[28]

### Commensalism

Commensalism refers to the biological interaction between two species in which one benefits while the other simply remains unaffected. The species that benefits is referred to as the commensal while the species that is unaffected is referred to as the host. For example, organisms that live attached to plants, known as epiphytes, are referred to as commensals. Algae that grow on the backs of turtles or sloths are considered as commensals, too. Their survival rate is higher when they are attached to their host, however they do not harm nor benefit the host.[29] Nearly 10% of all vascular plant species around the world are epiphytes, and most of them are found in tropical forests. Therefore, they make up a large fraction of the total plant biodiversity in the world, being 10% of all species, and 25% of all vascular plant species in tropical countries.[30] However, commensals have the capability to transform into parasites over time by which results in a decrease in success or an overall population decline.[29]

### Herbivory

Reindeer in front of herbivore exclosures. Excluding different herbivores (here reindeer, or reindeer and rodents) has different effects on the vegetation.

An important ecological function of plants is that they produce organic compounds for herbivores[31] in the bottom of the food web. A large number of plant traits, from thorns to chemical defenses, can be related to the intensity of herbivory. Large herbivores can also have many effects on vegetation. These include removing selected species, creating gaps for regeneration of new individuals, recycling nutrients, and dispersing seeds. Certain ecosystem types, such as grasslands, may be dominated by the effects of large herbivores, although fire is also an equally important factor in this biome. In few cases, herbivores are capable of nearly removing all the vegetation at a site (for example, geese in the Hudson Bay Lowlands of Canada, and nutria in the marshes of Louisiana[32]) but normally herbivores have a more selective impact, particularly when large predators control the abundance of herbivores. The usual method of studying the effects of herbivores is to build exclosures, where they cannot feed, and compare the plant communities in the exclosures to those outside over many years. Often such long term experiments show that herbivores have a significant effect upon the species that make up the plant community.[2]

## Other topics

### Abundance

Main article: Earth:Abundance (ecology)

The ecological success of a plant species in a specific environment may be quantified by its abundance, and depending on the life form of the plant different measures of abundance may be relevant, e.g. density, biomass, or plant cover.

The change in the abundance of a plant species may be due to both abiotic factors,[33] e.g. climate change, or biotic factors, e.g. herbivory or interspecific competition.

### Colonisation and local extinction

Main article: Biogeography

See also: Colonisation (biology), Biological dispersal, Seed dispersal, Local extinction, and Soil seed bank

Whether a plant species is present at a local area depends on the processes of colonisation and local extinction. The probability of colonisation decreases with distance to neighboring habitats where the species is present and increases with plant abundance and fecundity in neighboring habitats and the dispersal distance of the species. The probability of local extinction decreases with abundance (both living plants and seeds in the soil seed bank).

### Life forms

Main article: Earth:Plant life-form

See also: Earth:Raunkiær plant life-form

### Reproduction

Main article: Biology:Plant reproduction

There are a few ways that reproduction occurs within plant life, and one way is through parthenogenesis. Parthenogenesis is defined as "a form of asexual reproduction in which genetically identical offspring (clones) are produced".[34] Another form of reproduction is through cross-fertilization, which is defined as "fertilization in which the egg and sperm are produced by different individuals", and in plants this occurs in the ovule. Once an ovule is fertilized within the plant this becomes what is known as a seed. A seed normally contains the nutritive tissue also known as the endosperm and the embryo. A seedling is a young plant that has recently gone through germination.[35] Another form of reproduction of a plant is self-fertilization;[36] in which both the sperm and the egg are produced from the same individual- this plant is therefore a self-compatible titled plant.[37]

## See also

* Biogeochemistry
* Community ecology
* Forest ecology
* CSR theory
* Landscape ecology
* R* rule
* Size-asymmetric competition
* Systems ecology
* Vegetation

## References

1. ↑ Smith, J. (2020). Plant ecology interactions. Journal of Ecology.
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Keddy, Paul A. (2007). Plants and Vegetation. Cambridge: Cambridge University Press. ISBN 978-0-521-86480-0.
3. ↑ Archibold, O.W. (1995). Ecology of World Vegetation. London.: Chapman and Hall. pp. 510 p. ISBN 0-412-44290-6.
4. ↑ Carroll & Salt (2004). Ecology for Gardeners. Timber Press, Inc. pp. Glossary, page 287. ISBN 0-88192-611-6.
5. ↑ Sönmez, Osman; Saud, Shah; Wang, Depeng; Wu, Chao; Adnan, Muhammad; Turan, Veysel (2021-04-27). Climate Change and Plants. CRC Press. doi:10.1201/9781003108931. ISBN 978-1-003-10893-1.
6. ↑ Weaver, J. E. and F. E. Clements. 1938. Plant Ecology. 2nd edn. New York: McGraw-Hill Book Company.
7. ↑ Haeckel, Ernst (1866) (in de). Generelle Morphologie der Organismen. 2. Berlin, (Germany): Georg Reimer. https://www.biodiversitylibrary.org/item/52177#page/454/mode/1up. From p. 286: "Unter Oecologie verstehen wir die gesammte Wissenschaft von den Beziehungen des Organismus zur umgebenden Aussenwelt, wohin wir im weiteren Sinne alle "Existenz-Bedingungen" rechnen können." (By "ecology" we understand the comprehensive science of the relationships of the organism to its surrounding environment, where we can include, in the broader sense, all "conditions of existence".)
8. ↑ Schulze, Ernst-Detlef (2005). Plant Ecology. Springer. ISBN 978-3-540-20833-4. https://books.google.com/books?id=rDo8hLWtWzgC&q=plant+ecology. Retrieved April 24, 2012. ISBN 3-540-20833-X
9. ↑ Williams, G. C. 1975. Sex and Evolution. Monographs in Population Biology. No. 8. Princeton: Princeton University Press.
10. ↑ Harper, J. L. 1977. Population Biology of Plants. London: Academic Press.
11. ↑ 11.0 11.1 11.2 11.3 11.4 van der Valk, Arnold (2011). "Origins and Development of Ecology". in Kevin deLaplante. Philosophy of Ecology. Handbook of the Philosophy of Science. 11. Amsterdam: Elsevier. pp. 25–48.
12. ↑ 12.0 12.1 12.2 12.3 Barbour, Michael G.; Jack H. Burk; Wanna D. Pitts; Frank S. Gilliam; Mark W. Schwartz (1999). Terrestrial Plant Ecology (Third ed.). Addison Wesley Longman.
13. ↑ Cooper, W. S. (1957). "Sir Arthur Tansley and the Science of Ecology". Ecology 38 (4): 658–659. doi:10.2307/1943136. Bibcode: 1957Ecol...38..658C.
14. ↑ 14.0 14.1 14.2 14.3 14.4 Smith, Christopher C. (September 1988). "Elements of Ecology Robert Leo Smith". The American Biology Teacher 50 (6): 394. doi:10.2307/4448774. ISSN 0002-7685.
15. ↑ Lambers, Hans; F. Stuart Chapin III; Thijs L. Pons (2008). Plant Physiological Ecology (Second ed.).
16. ↑ Craine, Joseph M.; Dybzinski, Ray (2013). "Mechanisms of plant competition for nutrients, water and light". Functional Ecology 27 (4): 833–840. doi:10.1111/1365-2435.12081. ISSN 0269-8463. Bibcode: 2013FuEco..27..833C.
17. ↑ 17.0 17.1 Keddy, Paul A. (2001). Competition. Dordrecht: Kluwer. p. 552. ISBN 0-7923-6064-8.
18. ↑ Casper, Brenda B. and Robert. B. Jackson. 1997. Plant competition underground. Annual Review of Ecology and Systematics 28: 545–570.
19. ↑ Belcher, J., P.A. Keddy, and L. Twolan-Strutt. 1995. Root and shoot competition along a soil depth gradient. Journal of Ecology 83: 673–682
20. ↑ Twolan-Strutt, L. and P.A. Keddy. 1996. Above- and below-ground competition intensity in two contrasting wetland plant communities. Ecology 77: 259–270.
21. ↑ Craine, J. M. (2009). Resource strategies in wild plants. Princeton University Press, Princeton.
22. ↑ Grime, J. P. 1979. Plant Strategies and Vegetation Processes. Chichester: John Wiley.
23. ↑ File, Amanda L.; Klironomos, John; Maherali, Hafiz; Dudley, Susan A. (2012-09-28). Heil, Martin. ed. "Plant Kin Recognition Enhances Abundance of Symbiotic Microbial Partner" (in en). PLOS ONE 7 (9). doi:10.1371/journal.pone.0045648. ISSN 1932-6203. PMID 23029158. Bibcode: 2012PLoSO...745648F.
24. ↑ Callaway, R. M. 1995. Positive interactions among plants (Interpreting botanical progress). The Botanical Review 61: 306–349.
25. ↑ Keddy, Paul A., Competition, 2nd ed. (2001), Kluwer, Dordrecht. 552 p.
26. ↑ Hochberg, M. E.; Michalakis, Y.; Meeus, T. De (1992). "Parasitism as a constraint on the rate of life-history evolution" (in en). Journal of Evolutionary Biology 5 (3): 491–504. doi:10.1046/j.1420-9101.1992.5030491.x. ISSN 1420-9101.
27. ↑ 27.0 27.1 Cameron, Duncan D.; White, Andy; Antonovics, Janis (November 2009). "Parasite-grass-forb interactions and rock-paper- scissor dynamics: predicting the effects of the parasitic plant Rhinanthus minor on host plant communities" (in en). Journal of Ecology 97 (6): 1311–1319. doi:10.1111/j.1365-2745.2009.01568.x. Bibcode: 2009JEcol..97.1311C. https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2745.2009.01568.x.
28. ↑ Marvier, Michelle A. (1998). "Parasite Impacts on Host Communities: Plant Parasitism in a California Coastal Prairie". Ecology 79 (8): 2616–2623. doi:10.2307/176505. ISSN 0012-9658. Bibcode: 1998Ecol...79.2616M.
29. ↑ 29.0 29.1 Malcolm, W. (1966). Biological Interactions. Botanical Review, 32(3), 243-254. Retrieved March 15, 2020, from www.jstor.org/stable/4353730
30. ↑ Nieder, J., Prosperí, J. & Michaloud, G. Epiphytes and their contribution to canopy diversity. Plant Ecology 153, 51–63 (2001). https://doi.org/10.1023/A:1017517119305
31. ↑ Schulze, Ernst-Detlef (2005). Plant Ecology – (Section 1.10.1: Herbivory). Springer. ISBN 978-3-540-20833-4. https://books.google.com/books?id=rDo8hLWtWzgC&q=plant+ecology. Retrieved April 24, 2012. ISBN 3-540-20833-X
32. ↑ Keddy, P.A., Wetland Ecology: Principles and Conservation, 2nd ed. (2010), Cambridge University Press, Cambridge, UK. 497 p. Chapt. 6. Herbivory.
33. ↑ Wood, Kevin A.; Stillman, Richard A.; Clarke, Ralph T.; Daunt, Francis; O'Hare, Matthew T. (2012-11-14). "Understanding Plant Community Responses to Combinations of Biotic and Abiotic Factors in Different Phases of the Plant Growth Cycle". PLOS ONE 7 (11). doi:10.1371/journal.pone.0049824. ISSN 1932-6203. PMID 23166777. Bibcode: 2012PLoSO...749824W.
34. ↑ Carrol & Salt (2004). Ecology for Gardeners. Timber Press, Inc. p. 286. ISBN 0-88192-611-6.
35. ↑ Carroll & Salt (2004). Ecology for Gardeners. Timber Press, Inc. p. 282. ISBN 0-88192-611-6.
36. ↑ Lloyd, David G.; Schoen, Daniel J. (1992). "Self- and Cross-Fertilization in Plants. I. Functional Dimensions". International Journal of Plant Sciences 153 (3, Part 1): 358–369. doi:10.1086/297040. Bibcode: 1992IJPlS.153..358L.
37. ↑ Carroll & Salt (2004). Ecology for Gardeners. Timber Press, Inc. p. 288. ISBN 0-88192-611-6.

### Further reading

* Archibold, O.W. (1995). "Ecology of World Vegetation". Chapman and Hall, London..
* Cittadino, E. (1990). Nature as the Laboratory. Darwinian Plant Ecology in the German Empire, 1880–1900. Cambridge: Cambridge University Press.
* Crawley, Michael J. (1997). Plant Ecology. Blackwell Scientific Publications. ISBN 978-0-632-03639-4. https://books.google.com/books?id=TnI9FBYNR3QC&q=plant+ecology. Retrieved April 24, 2012. ISBN 0-632-01363-X
* Gibson, J. Phil; Gibson, Terri R. (2006). Plant Ecology. Green World. OCLC 60839405. ISBN 0-7910-8566-X
* Keddy, Paul A. (2007). Plants and Vegetation: Origins, Processes, Consequences.. Cambridge University Press. ISBN 978-0-521-86480-0

Template:Branches of ecology

* v
* t
* e

Botany

History of botany

Subdisciplines|

* Plant systematics
* Ethnobotany
* Paleobotany
* Plant anatomy
* Plant ecology
* Phytogeography
* Geobotany
* Flora
* Phytochemistry
* Plant pathology
* Bryology
* Phycology
* Floristics
* Dendrology
* Astrobotany

Plant groups|

* Algae
* Archaeplastida
* Bryophyte
* Non-vascular plants
* Vascular plants
* Spermatophytes
* Pteridophyte
* Gymnosperm
* Angiosperm

Plant morphology
(glossary)

| Plant cells|

* Cell wall
* Phragmoplast
* Plastid
* Plasmodesma
* Vacuole

|

Tissues|

* Meristem
* Vascular tissue
* Vascular bundle
* Ground tissue
* Mesophyll
* Cork
* Wood
* Storage organs

Vegetative|

* Root
* Rhizoid
* Bulb
* Rhizome
* Shoot
* Stem
* Leaf
* Petiole
* Cataphyll
* Bud
* Sessility

Reproductive
(Flower)|

* Flower development
* Inflorescence
* Umbel
* Raceme
* Bract
* Pedicellate
* Flower
* Aestivation
* Whorl
* Floral symmetry
* Floral diagram
* Floral formula
* Receptacle
* Hypanthium (Floral cup)
* Perianth
* Tepal
* Petal
* Sepal
* Sporophyll
* Gynoecium
* Ovary
* Ovule
* Stigma
* Archegonium
* Androecium
* Stamen
* Staminode
* Pollen
* Tapetum
* Gynandrium
* Gametophyte
* Sporophyte
* Plant embryo
* Fruit
* Fruit anatomy
* Berry
* Capsule
* Seed
* Seed dispersal
* Endosperm

Surface structures|

* Epicuticular wax
* Plant cuticle
* Epidermis
* Stoma
* Nectary
* Trichome
* Prickle

* Plant physiology
* Materials

* Nutrition
* Photosynthesis
* Chlorophyll
* Plant hormone
* Transpiration
* Turgor pressure
* Bulk flow
* Aleurone
* Phytomelanin
* Sugar
* Sap
* Starch
* Cellulose

Plant growth and habit|

* Secondary growth
* Woody plants
* Herbaceous plants
* Habit
* Vines
* Lianas
* Shrubs
* Subshrubs
* Trees
* Succulent plants

Reproduction

* Evolution
* Ecology

* Alternation of generations
* Sporangium
* Spore
* Microsporangia
* Microspore
* Megasporangium
* Megaspore
* Pollination
* Artificial
* Pollinators
* Pollen tube
* Self
* Double fertilization
* Germination
* Evolutionary development
* Evolutionary history
* timeline

Plant taxonomy|

* History of plant systematics
* Herbarium
* Biological classification
* Botanical nomenclature
* Botanical name
* Correct name
* Author citation
* International Code of Nomenclature for algae, fungi, and plants (ICN)
* International Code of Nomenclature for Cultivated Plants (ICNCP)
* Taxonomic rank
* International Association for Plant Taxonomy (IAPT)
* Plant taxonomy systems
* Cultivated plant taxonomy
* Citrus taxonomy
* cultigen
* cultivar
* Group
* grex

Practice|

* Agronomy
* Floriculture
* Forestry
* Horticulture

* Lists
* Related topics

* Botanical terms
* Botanists
* by author abbreviation
* Botanical expedition

* Category
*   * WikiProject

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Plant ecology. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Biology:Plant_ecology&oldid=4367181"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template