Insects `Down Under`– Diversity, endemism and evolution of the
... presently known from Chile, Patagonia, New Zealand, eastern Australia and New Caledonia (Evans 1981; Cassis & Gross 1995), and comprises 13 genera and 25 species. Numerous new taxa exist, with the greatest species richness occurring in the Australian region. Peloridiids are commonly found in mosses ...
... presently known from Chile, Patagonia, New Zealand, eastern Australia and New Caledonia (Evans 1981; Cassis & Gross 1995), and comprises 13 genera and 25 species. Numerous new taxa exist, with the greatest species richness occurring in the Australian region. Peloridiids are commonly found in mosses ...
Position Paper by Biodiversity on the Brink
... species has accelerated to a maximum of 1000 times compared to the natural state. At the present day it is applied to be the 6th mass extinction period since the birth of life, but it is induced by a certain species (human). Additionally it was reported that within the past 50 years, 60% of the ecos ...
... species has accelerated to a maximum of 1000 times compared to the natural state. At the present day it is applied to be the 6th mass extinction period since the birth of life, but it is induced by a certain species (human). Additionally it was reported that within the past 50 years, 60% of the ecos ...
Flora Survey - NT EPA - Northern Territory Government
... • Overall the coastal sand plain habitat was relatively weed-free and in healthy condition. Weed species do not occur in high densities and habitat degradation was not observed. • The majority of upland vegetation had been burnt recently but much of the sand plains remained unburnt including relativ ...
... • Overall the coastal sand plain habitat was relatively weed-free and in healthy condition. Weed species do not occur in high densities and habitat degradation was not observed. • The majority of upland vegetation had been burnt recently but much of the sand plains remained unburnt including relativ ...
The Importance of Protecting Marine Biodiversity
... genetically very similar. Fish ranching is especially harmful because the fish are released into the wild where they mate with wild fish, reducing the genetic diversity of the entire population. Threats to the environment that may not seem to directly affect marine biodiversity can have serious affe ...
... genetically very similar. Fish ranching is especially harmful because the fish are released into the wild where they mate with wild fish, reducing the genetic diversity of the entire population. Threats to the environment that may not seem to directly affect marine biodiversity can have serious affe ...
rich: An R Package to Analyse Species Richness
... estimation and comparison. Species richness is the simplest surrogate for the more complex concept of species biodiversity. It is relatively easy to assess although estimations strongly depend on sampling intensity with the consequence that richness estimations should be standardized to perform vali ...
... estimation and comparison. Species richness is the simplest surrogate for the more complex concept of species biodiversity. It is relatively easy to assess although estimations strongly depend on sampling intensity with the consequence that richness estimations should be standardized to perform vali ...
Lecture 8.
... Biodiversity provides indirect benefits to human beings which support the existence of biological life and other benefits which are difficult to quantify. There include social and culture values, ethical values, aesthetic values, option values and environment service values. Social and cultural valu ...
... Biodiversity provides indirect benefits to human beings which support the existence of biological life and other benefits which are difficult to quantify. There include social and culture values, ethical values, aesthetic values, option values and environment service values. Social and cultural valu ...
Conservation and restoration of plant
... However, increasing evidence has confirmed that it is not the decline of species diversity per se that scientists, conservationists, and restoration managers should be most concerned about, but rather the interactions between organisms that breathe life into ecosystems (e.g. Janzen, 1974; Bond, 1994; ...
... However, increasing evidence has confirmed that it is not the decline of species diversity per se that scientists, conservationists, and restoration managers should be most concerned about, but rather the interactions between organisms that breathe life into ecosystems (e.g. Janzen, 1974; Bond, 1994; ...
Benefits of biodiversity
... Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings ...
... Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings ...
CBD Fourth National Report
... (non-intensive) way. Very often agricultural land, especially on mountains, alternates with fallow or abandoned land, colonized by shrubby or phryganic vegetation, which further diversifies habitat conditions. ...
... (non-intensive) way. Very often agricultural land, especially on mountains, alternates with fallow or abandoned land, colonized by shrubby or phryganic vegetation, which further diversifies habitat conditions. ...
Impact of Alien Plants on Hawaii`s Native Biota
... seeds are dispersed, although man was initially the principal disseminator when seeds were sown from aircraft. It is not susceptible to control by fire because the trees are rarely subjected to fires of sufficient intensity. The potential for biological control has not been evaluated. It grows from ...
... seeds are dispersed, although man was initially the principal disseminator when seeds were sown from aircraft. It is not susceptible to control by fire because the trees are rarely subjected to fires of sufficient intensity. The potential for biological control has not been evaluated. It grows from ...
Invasive Predatory Small Mammals on Islands Strategy
... Offshore and inland lake islands offer ground nesting bird species refuges from predation and human mediated impacts. These habitats provide isolated areas where species can achieve higher breeding success rates. When island breeding sites become invaded by predatory mammals such as mink, cats and r ...
... Offshore and inland lake islands offer ground nesting bird species refuges from predation and human mediated impacts. These habitats provide isolated areas where species can achieve higher breeding success rates. When island breeding sites become invaded by predatory mammals such as mink, cats and r ...
mammals, edge effects, and the loss of tropical forest diversity
... often disperse and bury seeds, some of which survive to germinate (Smythe 1989). In fragments where mammals are absent, or where mammals have been lost to hunters, such dispersal does not occur. Mammal community composition thus may play an important role in the maintenance or loss of tree species d ...
... often disperse and bury seeds, some of which survive to germinate (Smythe 1989). In fragments where mammals are absent, or where mammals have been lost to hunters, such dispersal does not occur. Mammal community composition thus may play an important role in the maintenance or loss of tree species d ...
Introductory Report on Nature Conservation in
... shared with Albania is the largest3, with a surface area that varies between 354 and 505 km2, depending on the water level. According to the new research, Skadar Lake is estimated as a refuge for many species survived the glaciations. Consequently Skadar Lake and its vicinity are rich in relict and ...
... shared with Albania is the largest3, with a surface area that varies between 354 and 505 km2, depending on the water level. According to the new research, Skadar Lake is estimated as a refuge for many species survived the glaciations. Consequently Skadar Lake and its vicinity are rich in relict and ...
RTF - Index of
... Purpose: The Arctic Species Trend Index (ASTI) is part of a suite of indicators and indices developed by the Circumpolar Biodiversity Monitoring Program (CBMP). The CBMP is the cornerstone programme of the Conservation of Arctic Flora and Fauna (CAFF), Arctic Council working Group . It tracks trends ...
... Purpose: The Arctic Species Trend Index (ASTI) is part of a suite of indicators and indices developed by the Circumpolar Biodiversity Monitoring Program (CBMP). The CBMP is the cornerstone programme of the Conservation of Arctic Flora and Fauna (CAFF), Arctic Council working Group . It tracks trends ...
MacArthur and Wilson`s Radical Theory
... together by chance, history, and random dispersal. Species come and go, their presence or absence is dictated by random dispersal and stochastic local extinction. The theory of island biogeography is an example of such a theory. It asserts that the species in island communities are put there solely ...
... together by chance, history, and random dispersal. Species come and go, their presence or absence is dictated by random dispersal and stochastic local extinction. The theory of island biogeography is an example of such a theory. It asserts that the species in island communities are put there solely ...
Slide 1
... as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. As ecosystems are damaged, the organisms that inhabit them become more vulnerable to extinction. Humans reduce biodiversity by altering habitats, hu ...
... as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. As ecosystems are damaged, the organisms that inhabit them become more vulnerable to extinction. Humans reduce biodiversity by altering habitats, hu ...
6.3 Biodiversity - Mater Academy of International Studies
... as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. As ecosystems are damaged, the organisms that inhabit them become more vulnerable to extinction. Humans reduce biodiversity by altering habitats, hu ...
... as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. As ecosystems are damaged, the organisms that inhabit them become more vulnerable to extinction. Humans reduce biodiversity by altering habitats, hu ...
Viewing invasive species removal in a whole
... spp., house mice Mus musculus, and/or rabbits Oryctolagus cuniculus co-occur with exotic cats on 22 islands where the diets of cats have been studied. In nearly every case, cats exert important top-down controls on these other exotics by preying heavily on rabbits if they are present, and heavily on ...
... spp., house mice Mus musculus, and/or rabbits Oryctolagus cuniculus co-occur with exotic cats on 22 islands where the diets of cats have been studied. In nearly every case, cats exert important top-down controls on these other exotics by preying heavily on rabbits if they are present, and heavily on ...
MOOREA`S NEWEST INVASIVE SPECIES: THE DISTRIBUTION
... Invasive species can have devastating biological consequences that without early intervention can do irreparable damage to the ecosystems they invade. Oceanic islands have native flora and fauna that develop without much competition for resources, niches or habitats. As a result, invasive species of ...
... Invasive species can have devastating biological consequences that without early intervention can do irreparable damage to the ecosystems they invade. Oceanic islands have native flora and fauna that develop without much competition for resources, niches or habitats. As a result, invasive species of ...
Emerson 2002
... about the diversity among the flora and fauna on such islands. These questions relate to both the origin and causes of species diversity both within an archipelago and on individual islands. Within a phylogenetic framework one can answer fundamental questions such as whether ecologically and/or morp ...
... about the diversity among the flora and fauna on such islands. These questions relate to both the origin and causes of species diversity both within an archipelago and on individual islands. Within a phylogenetic framework one can answer fundamental questions such as whether ecologically and/or morp ...
Problems with areal definitions of endemism: the effects of spatial
... For example, the azure-rumped tanager, Tangara cabanisi, known from a handful of sites along the Mexico-Guatemala border in an extremely restricted distribution, is not endemic to either country under a regional definition, but would be included in areally defined endemic lists (Bibby et al., 1992). ...
... For example, the azure-rumped tanager, Tangara cabanisi, known from a handful of sites along the Mexico-Guatemala border in an extremely restricted distribution, is not endemic to either country under a regional definition, but would be included in areally defined endemic lists (Bibby et al., 1992). ...
High population densities of an exotic lizard, Anolis
... compare with the available data in other islands where the liz- ...
... compare with the available data in other islands where the liz- ...
Figs and the Diversity of Tropical Rainforests
... Figure 1. The development of a monoecious fig. The fig is a closed, urn-shaped inflorescence. Bracts that are tightly shut in the immature fig (stage A) loosen when it becomes receptive (stage B), allowing wasp pollinators to enter. Specificity is maintained in part by chemical cues and in part by t ...
... Figure 1. The development of a monoecious fig. The fig is a closed, urn-shaped inflorescence. Bracts that are tightly shut in the immature fig (stage A) loosen when it becomes receptive (stage B), allowing wasp pollinators to enter. Specificity is maintained in part by chemical cues and in part by t ...
Biodiversity ssc hsc 10th 12th cbsc state borad
... implies a second-order positive feedback. The hyperbolic pattern of the world population growth arises from a second-order positive feedback between the population size and the rate of technological growth. The hyperbolic character of biodiversity growth can be similarly accounted for by a feedback ...
... implies a second-order positive feedback. The hyperbolic pattern of the world population growth arises from a second-order positive feedback between the population size and the rate of technological growth. The hyperbolic character of biodiversity growth can be similarly accounted for by a feedback ...
Why the Phylogenetic Species Concept
... Abstract: Although species play a number of unique and necessary roles in biology, none are more important than as the elements of phylogeny, nomenclature, and biodiversity study. Species are not divisible into any smaller units among which shared derived characters can be recognized with fidelity. ...
... Abstract: Although species play a number of unique and necessary roles in biology, none are more important than as the elements of phylogeny, nomenclature, and biodiversity study. Species are not divisible into any smaller units among which shared derived characters can be recognized with fidelity. ...
Biodiversity of New Caledonia
The biodiversity of New Caledonia is of exceptional biological and paleoecological interest. It is frequently referred to as a biodiversity hotspot. The country is a large South Pacific archipelago with a total land area of more than 18,000 square kilometres (6,900 sq mi). The terrain includes a variety of reefs, atolls, small islands, and a variety of topographical and edaphic regions on the largest island, all of which promote the development of unusually concentrated biodiversity. The region's climate is oceanic and tropical.New Caledonia is separated from the nearest mainland by more than 1,000 kilometres (620 mi) of open sea. Its isolation dates from at least the mid-Miocene, and possibly from the Oligocene, and that isolation has preserved its relict biota, fostering the evolution of wide ranges of endemic species.