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Invasibility of tropical islands by introduced plants
Invasibility of tropical islands by introduced plants

... above, as well as Missouri Botanical Garden (2006) and Institute of Pacific Islands Forestry (2006). For each island group, four nested species pools were defined based on the sequential and selective process of invasion. The pool of introduced species was defined as species that had been introduced ...
12 Invasive Predators: a synthesis of the past
12 Invasive Predators: a synthesis of the past

... invasive predators, such as brown treesnakes systematically eliminating the avifauna of Guam (Savidge 1987). In addition, their effects go undetected at first and they are easily transported because they are small or secretive (e.g., snakes), they are ignored by local authorities as innocuous (e.g., ...
Diversity Increases Indirect Interactions
Diversity Increases Indirect Interactions

... aristata), and one highly invasive species (Centaurea stoebe). We selected these species because they are common and widespread in intermountain prairies in the northern Rocky Mountains. Rocky Mountain intermountain prairies are characterized as semiarid, low-productivity grasslands dominated by per ...
There are many barriers to species` migrations
There are many barriers to species` migrations

... climates’ sensu Williams et al. 2007) increased from just 3% to over 36% with the inclusion of both precipitation and biome boundaries. The number of reachable climate analogs would be reduced even further if we followed climatechange trajectories and thus included interior climate sinks sensu Burro ...
Potential Science Needs 2015
Potential Science Needs 2015

... Prioritization of sites for protection, preservation important cultural resource sites level, NGO’s or possible relocation Trends analysis of wetland change at Gov’t- federal to local Regional changes in the distribution and the East coast (regional) scale level, NGO’s abundance of wetlands is unkno ...
Biotic Invasions: Causes, Epidemiology Biotic Invasions: Causes
Biotic Invasions: Causes, Epidemiology Biotic Invasions: Causes

... collective effects of invasive plants, including Schinus terebinthifolius (Brazilian pepper). A) The potential natural communities across much of the Everglades are composed of small forested hammocks in a matrix of marshes. B) Invasion by Brazilian pepper has radically transformed these ecosystems ...
Chapter 7
Chapter 7

... Dispersal and diapause: Small offspring are well-suited for dispersal. ...
A presence-only habitat suitability model for large grazing
A presence-only habitat suitability model for large grazing

... (hereafter Malilangwe), a wildlife sanctuary situated in the Zimbabwean south-east lowveld. In 1994, Malilangwe initiated a re-stocking programme of large ungulate species, in accordance with their conservation objectives. Re-introduced species included the conservation-dependent (IUCN, 2004) Cape b ...
Linking body-size distributions and food-web structure (PDF
Linking body-size distributions and food-web structure (PDF

... The results of the cross-species analyses between body size and trophic level contrasted with patterns in the size and trophic structure of entire fish communities.When fish communities were divided into body mass classes, there were strong positive relationships between body mass and trophic level ...
Author`s copy - Department of Biology
Author`s copy - Department of Biology

... ability, body mass, diet (proxy for ecological function), habitat, and resource specialization. Threat status, range size (extent of occurrence), population, and frequency data came from BirdLife International (2010). I excluded aquatic species (primary habitat sea, coastal areas, or wetlands), but ...
Chapter 3 Environment: The Science behind the Stories 4th Edition
Chapter 3 Environment: The Science behind the Stories 4th Edition

... Speciation produces new types of organisms • The process of generating new species from a single species • Allopatric speciation: species formation due to physical separation of populations - The main mode of speciation ...
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... Loess vegetation in the study area consists of very few fragments of differently degraded seminatural stands of forest-steppe and steppe grasslands, which are also the most southern (southwestern) occurrence of these vegetation types. It is known that species occurring on the very border of their di ...
niche-based
niche-based

... shadow on the wall and as you rotate your hand, the 2D image on the wall changes. These graphs represent the view of the multiple dimensions that best show the factors that “pull” on the data. Sites are represented by circles and individual species are represented by crosses. Sites that share the mo ...
Managing for Threatened, Endangered, and Sensitive Species
Managing for Threatened, Endangered, and Sensitive Species

... aafb, Eggert’s sunflower was classified as a threatened species prior to its delisting; however, it was not identified as a focal target. It, along with high priority non-federally listed fauna and flora, are nested sub-targets in the grassland and woodland/savanna/shrubland focal targets. The usfws ...
Filling Key Gaps in Population and Community Ecology
Filling Key Gaps in Population and Community Ecology

... summ.jsp?pims_id=12823&org=DEB&from=home) and to make recommendations for research priority areas in population and community ecology. This article summarizes the panel’s recommendations. The last such panel was convened in 1999 (Thompson et al. 2001), and we therefore report on recent progress and ...
What is the impact of Impatiens glandulifera on
What is the impact of Impatiens glandulifera on

... indicating that once I. glandulifera is removed, communities recover without any conse- ...
Introductory Ecology Laboratory Manual - Your Space
Introductory Ecology Laboratory Manual - Your Space

... process to which all active scientists submit. In this case the peer group reviewing your paper will be your classmates. The process will be broken three parts, submitting a paper and reviewing papers and revision of your paper. Writing a Scientific Paper A well-written scientific paper explains the ...
Sitename:-Gondwana Rainforests of Australia Site Description:
Sitename:-Gondwana Rainforests of Australia Site Description:

... Justification :-Funding is largely the responsibility of the State management agencies. However, funding has been made available by the Australian Government to assist with additional management and presentation activities. The Australian Government has also funded the position of the Gondwana Rainf ...
Unit 14 ECOSYSTEMS AND COMMUNITIES: ORGANISMS AND
Unit 14 ECOSYSTEMS AND COMMUNITIES: ORGANISMS AND

... organisms that are much more complex than just “bugs”; they vary in their shape and size and have certain features that distinguish them from other organisms. • Parasitism is a relationship between two organisms in which one particular organism (a host) is ______________, while the parasite ________ ...
Name: Date: ______ Period: [Type text][Type text][Type text] Unit 6
Name: Date: ______ Period: [Type text][Type text][Type text] Unit 6

... will cause the bug population to decrease. A population of rabbits decreases because of a lack of clovers in an area. The coyote population decreases as well because; there aren’t enough rabbits to feed all of the coyotes in the area. 9. Describe a change of an abiotic factor in an ecosystem. a. The ...
Document
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... The MS GAP dataset used for this analysis was a thematically classified statewide geospatial data layer based on 40 distinct LULC types. Both the raster image and the vector point file then were projected into a Transverse Mercator projection with the North American Datum 1983 (NAD83; the legal hori ...
- Wiley Online Library
- Wiley Online Library

... show that species richness increases with island area and decreases with degree of isolation (Lomolino, 1994; Hubbell, 1997 and references therein). The positive effect of island area on species richness has been mainly explained in three ways: (1) larger islands support higher population sizes than ...
Diversity effects on production in different light and fertility
Diversity effects on production in different light and fertility

... interactions, in which species benefit from the presence of interspecific neighbours, can also drive richnessproduction relationships, but these should be especially dependent upon certain stressful environmental circumstances that limit the importance of competition (Mulder et al. 2001; Cardinale e ...
Coexistence and invasibility in a two-species competition
Coexistence and invasibility in a two-species competition

... dynamics (Masuda et al., 2010). For the sake of simplicity, site specificity is randomly assigned at the beginning and left unchanged during the dynamics. Of course, in natural ecosystems, spatial arrangement of sites with a certain specificity will usually be characterized by a certain degree of corr ...
Effects of the non-native amphibian species Discoglossus pictus on
Effects of the non-native amphibian species Discoglossus pictus on

... may be apparent to a greater or lesser degree (Kiesecker et al. 2001; Blaustein and Kiesecker 2002; Kats and Ferrer 2003). The various levels of impact a non-native species may have on a native community are related to the capacity of the nonnative species to invade and the invasion stage it has rea ...
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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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