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DOC - Brown University
DOC - Brown University

Ecological Communities
Ecological Communities

The Great Barrier Reef
The Great Barrier Reef

... Chihauhuan desert The Chihuahuan Desert covers an area of about 362,600km2 (or 140,000 square miles). It is the third largest desert entirely within the Western Hemisphere and the second largest in North America, after the Great Basin Desert. Chihuahuan is home to more than 130 mammals, 3,000 plant ...
PPT Slide - Tennessee State University
PPT Slide - Tennessee State University

... less abundant in the soil (By Grubb and Tilman) Plants compete more intensively when nutrients are less. High nutrients are less likely to limit plant population; thus the intraspecific competition is weak. 2.Competition is less intense when water and nutrients are less abundant (Grime and Keddy) Co ...
Word - Wallace Resource Library
Word - Wallace Resource Library

... Over half of the world’s rainforest lies in the Brazilian Amazon River basin of South America which in turn holds about a third of the remaining tropical rainforest. Another 20% is found in Indonesia and the Congo basin in Central Africa and the balance scattered around the tropical regions of the g ...
Proc for pdf making - Invasive Species Specialist Group
Proc for pdf making - Invasive Species Specialist Group

... be borne in mind when planning eradications. Knowledge of the ecological relationships of invasive species is a key prerequisite when planning their removal from an ecosystem. These relationships raise opportunities as well as risks: for example it is possible to remove invasive prey species (e.g. r ...
Marine Ecosystems & Biodiversity
Marine Ecosystems & Biodiversity

... community structure over time Feast in the Deep Boneworms on Dead Whales in Monterey Bay ...
Example 1 - Leesburg High School
Example 1 - Leesburg High School

... community structure over time Feast in the Deep Boneworms on Dead Whales in Monterey Bay ...
Chapter 5 Lecture 09
Chapter 5 Lecture 09

... • Isolated communities tend to be less diverse… why??? – Difficult to reach & successfully colonize the area. – Species may become locally extinct, and it is difficult to replace them. – Isolated areas tend to be small, thus there are fewer potential ecological niches. – Leads to reproductive isolat ...
Ch. 17 Speciation and Molecular Evolution
Ch. 17 Speciation and Molecular Evolution

... – Ex. Timing of flowering plants ...
Unit 5 - Marine & Coastal Environmental Resource Management
Unit 5 - Marine & Coastal Environmental Resource Management

... • fragmentation – where parts of the animal breaks off and ...
Abstracts - FIU SEAS - Florida International University
Abstracts - FIU SEAS - Florida International University

... Invasive plants affect the ecology, economy and cultural history of every region they infest. Florida’s Panhandle is particularly susceptible to these effects due to the high rates of infestation and the unusually high amount of native biodiversity in the area. While a significant amount of work has ...
Importance of Biodiversity
Importance of Biodiversity

... and microorganisms, the genes they contain, and the ecosystems they form. This living wealth is the product of hundreds of millions of years of evolutionary history. ...
Blue Mountains Water Skink - Blue Mountains City Council
Blue Mountains Water Skink - Blue Mountains City Council

... This species is only found one place in the world - in a few swamps of the upper Blue Mountains of NSW. ...
Invasive species in marine food webs: their key to success?
Invasive species in marine food webs: their key to success?

... Hackerott S, Valdivia A, Green SJ, Côté IM, et al. (2013) Native Predators Do Not Influence Invasion Success of Pacific Lionfish on Caribbean Reefs. PLoS ONE 8(7): e68259. ...
Community Dynamics
Community Dynamics

... Roots or seeds that suvive or even require fire. Light seeds float on the wind into burned area. ...
Terrestrial Ecology Unit overview
Terrestrial Ecology Unit overview

... The 1st Law of Thermodynamics states that “energy can be changed from one form to another, but it cannot be created or destroyed”. The 2nd Law of thermodynamics states that "in all energy exchanges, if no energy enters or leaves the system, the potential energy of the state will always be less than ...
EcologyEvolution - Clinton Public Schools
EcologyEvolution - Clinton Public Schools

... Variations are good for the overall success of a species • Individuals with useful traits are likely to live longer • They are more likely to have more offspring and pass on their useful traits. Over time, as this process is repeated, more and more members have the useful traits. ...
Isthmus Fragmentation fact sheet
Isthmus Fragmentation fact sheet

... Fragmentation refers to the division and separation of large blocks of habitat (in this case, forests) into smaller isolated habitats. Prior to European settlement, the Acadian Forest stretched across the Maritimes, interrupted only by rivers, lakes and wetlands. While the forest itself was a patchw ...
The Amazon Rainforest should be conserved to protect the
The Amazon Rainforest should be conserved to protect the

... could have flown over Amazonia in 1500 after the rainy season you would have seen innumerable small fires dotting the forest. The common idea that the Amazon is being destroyed by land-hungry colonists must be put into context with this long history of human inhabitation of the land. Amazonia should ...
Lesson 5.3 Ecological Communities
Lesson 5.3 Ecological Communities

... 10% Rule • In general, only about 10% of the energy available at any trophic level is passed to the next; most of the rest is ...
What have we done! - CastleSchoolBiology
What have we done! - CastleSchoolBiology

... • CFC’s can come from cooling systems, fire extinguishers, Styrofoam containers, home insulation, plastic foam, and throwaway food containers. ...
Community Ecology - Winona State University
Community Ecology - Winona State University

... Range in mean monthly temperature ...
pioneer species
pioneer species

... growing and long-living species dominate. • Mature forests sustain a diverse community of animal fauna, often different than that of the field and shrublands communities. ...
chapter 8 Glossary - CarrollEnvironmentalScience
chapter 8 Glossary - CarrollEnvironmentalScience

... Fairly stable, self-sustaining community in an advanced stage of ecological succession; usually has a diverse array of species and ecological niches; captures and uses energy and cycles critical chemicals more efficiently than simpler, immature communities. ...
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Bifrenaria



Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.
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