4 Impacts of significant invasive vertebrate pests
... invasive animals in Australia have been estimated at one billion dollars per year (McLeod 2004, Tracey et al 2007). However, this is considered a conservative estimate and there are many gaps in our knowledge on impacts.The cumulative effects of invasive species are particularly difficult to measure ...
... invasive animals in Australia have been estimated at one billion dollars per year (McLeod 2004, Tracey et al 2007). However, this is considered a conservative estimate and there are many gaps in our knowledge on impacts.The cumulative effects of invasive species are particularly difficult to measure ...
Full Text - J
... Okinotorishima (Okinotori Island; 20°25′N, 136°05′E) is a small table reef located in the center of the Philippine Sea, northwestern Pacific (Fig. 1). Although it is located close to the Coral Triangle, which has the highest diversity of hermatypic corals (hereafter corals) with 605 species (Veron e ...
... Okinotorishima (Okinotori Island; 20°25′N, 136°05′E) is a small table reef located in the center of the Philippine Sea, northwestern Pacific (Fig. 1). Although it is located close to the Coral Triangle, which has the highest diversity of hermatypic corals (hereafter corals) with 605 species (Veron e ...
A Bug`s Life: Competition Among Species Towards
... depleted to increase the surplus production of …sh resources for man”. In this light, the Norwegian government has found a possible economic justi…cation against the international moratorium on whales hunting.9 In addition, it is meaningful to remind the biological concepts underlying the particular ...
... depleted to increase the surplus production of …sh resources for man”. In this light, the Norwegian government has found a possible economic justi…cation against the international moratorium on whales hunting.9 In addition, it is meaningful to remind the biological concepts underlying the particular ...
Fact sheet Mouflon
... Reproduction: Females become sexually mature at the age of 2, males at the age of 3-4, but the latter need another 2-4 years to reach a social status and with this the access to females. Females, yearlings and kids live in groups, whereas males aggregate in bachelor herds. During rutting season (lat ...
... Reproduction: Females become sexually mature at the age of 2, males at the age of 3-4, but the latter need another 2-4 years to reach a social status and with this the access to females. Females, yearlings and kids live in groups, whereas males aggregate in bachelor herds. During rutting season (lat ...
Latitudinal gradients in taxonomic overdescription rate affect
... recorded to provide an estimate of range size. We then assigned each species to the continent ...
... recorded to provide an estimate of range size. We then assigned each species to the continent ...
Status of the World`s Tortoises and Freshwater Turtles
... rivers, as well as expand to form a network of Batagur conservation expertise, support and action to other range states; 2) Surveys for remaining populations in the Sundarbans, Cambodia and Myanmar to focus conservation efforts; 3) networking among Asian Batagur conservation practitioners to share s ...
... rivers, as well as expand to form a network of Batagur conservation expertise, support and action to other range states; 2) Surveys for remaining populations in the Sundarbans, Cambodia and Myanmar to focus conservation efforts; 3) networking among Asian Batagur conservation practitioners to share s ...
All these species depend on mangroves for their survival.
... Mangroves provide protected nurseries for fishes, crustaceans and shellfish; food for marine life and humans; and refuge for many species of birds. This makes up an unique ecosystem where the land and the sea meet. Despite its endless list of important values, mangrove forests have shrunk dramatical ...
... Mangroves provide protected nurseries for fishes, crustaceans and shellfish; food for marine life and humans; and refuge for many species of birds. This makes up an unique ecosystem where the land and the sea meet. Despite its endless list of important values, mangrove forests have shrunk dramatical ...
The intermediate disturbance hypothesis should be
... they failed to sample a sufficient range of disturbance frequencies or intensities. But methodological artifacts can cut both ways. For instance, published empirical studies might overstate the frequency of humped diversity–disturbance relationships because researchers tend to look for such relation ...
... they failed to sample a sufficient range of disturbance frequencies or intensities. But methodological artifacts can cut both ways. For instance, published empirical studies might overstate the frequency of humped diversity–disturbance relationships because researchers tend to look for such relation ...
Speciation in sea urchins - Smithsonian Tropical Research Institute
... ABSTRACT: Data relevant to processes that give rise to new species of echinoids are reviewed. Phylogeographic information from mitochondrial DNA is used to ask whether speciation in sea urchins fits the allopatric model, which predicts that if reproductive isolation accumulates steadily with time, t ...
... ABSTRACT: Data relevant to processes that give rise to new species of echinoids are reviewed. Phylogeographic information from mitochondrial DNA is used to ask whether speciation in sea urchins fits the allopatric model, which predicts that if reproductive isolation accumulates steadily with time, t ...
Interactions between two endangered butterflies and invasive, exotic
... grass invasion on the two species presented in this manuscript, some parallels and contrasts are immediately apparent. Tall exotic grasses reduce the amount of reproductive habitat available for Taylor’s checkerspot and Fender’s blue butterfly either by excluding key butterfly resources or by degrad ...
... grass invasion on the two species presented in this manuscript, some parallels and contrasts are immediately apparent. Tall exotic grasses reduce the amount of reproductive habitat available for Taylor’s checkerspot and Fender’s blue butterfly either by excluding key butterfly resources or by degrad ...
Eccentric Endemics
... most notably broad hind feet with long claws for grasping and a very long tail (generally 115–120 per cent of body length). The tail always ends in a brush-like tuft (hence their common name), although its shape and extent varies according to species. As well as foraging amongst vines and lianas in ...
... most notably broad hind feet with long claws for grasping and a very long tail (generally 115–120 per cent of body length). The tail always ends in a brush-like tuft (hence their common name), although its shape and extent varies according to species. As well as foraging amongst vines and lianas in ...
File
... pattern of biotic factors by determining which species can inhabit an area. Environmental factors include both Biotic (or Biological) and Abiotic (or Physical) However, the fundamental characteristics of any ecosystem will be governed by its abiotic or physical components. The effects of these facto ...
... pattern of biotic factors by determining which species can inhabit an area. Environmental factors include both Biotic (or Biological) and Abiotic (or Physical) However, the fundamental characteristics of any ecosystem will be governed by its abiotic or physical components. The effects of these facto ...
Ecology Unit HW
... G.4.3- Outline the biogeographical features of nature reserves that promote the conservation of diversity G.4.4- Discuss the role of active management techniques in conservation G.4. 5 Discuss the advantages of in situ conservation of endangered species (terrestrial & aquatic reserves) G.4. 6- Outli ...
... G.4.3- Outline the biogeographical features of nature reserves that promote the conservation of diversity G.4.4- Discuss the role of active management techniques in conservation G.4. 5 Discuss the advantages of in situ conservation of endangered species (terrestrial & aquatic reserves) G.4. 6- Outli ...
Dispersal in Marine Organisms without a Pelagic Larval Phase
... much better at regenerating from apical fragments (down to 10 mm in length) than were the two other species of Caulerpa found in Hawaii. A management plan that involved breaking the alga into fragments would be doomed to increase the species abundance and range, instead of controlling it. C. taxifol ...
... much better at regenerating from apical fragments (down to 10 mm in length) than were the two other species of Caulerpa found in Hawaii. A management plan that involved breaking the alga into fragments would be doomed to increase the species abundance and range, instead of controlling it. C. taxifol ...
Chapter 8 - TeacherWeb
... 3. Some species have a fairly stable population size that may occasionally irrupt to a high peak and then crash to below carrying capacity. This is characteristic of short-lived, rapidly reproducing species. 4. Cyclic fluctuations occur over a regular time period, generally a multiple year cycle. 5. ...
... 3. Some species have a fairly stable population size that may occasionally irrupt to a high peak and then crash to below carrying capacity. This is characteristic of short-lived, rapidly reproducing species. 4. Cyclic fluctuations occur over a regular time period, generally a multiple year cycle. 5. ...
Population Ecology
... 3. Some species have a fairly stable population size that may occasionally irrupt to a high peak and then crash to below carrying capacity. This is characteristic of short-lived, rapidly reproducing species. 4. Cyclic fluctuations occur over a regular time period, generally a multiple year cycle. 5. ...
... 3. Some species have a fairly stable population size that may occasionally irrupt to a high peak and then crash to below carrying capacity. This is characteristic of short-lived, rapidly reproducing species. 4. Cyclic fluctuations occur over a regular time period, generally a multiple year cycle. 5. ...
Study Guide - KSU Web Home
... Each organism has habitat needs • Habitat = the environment where an organism lives - It includes living and nonliving elements • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms ac ...
... Each organism has habitat needs • Habitat = the environment where an organism lives - It includes living and nonliving elements • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms ac ...
sympatric speciation
... Galapagos Islands were isolated from mainland populations. Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings ...
... Galapagos Islands were isolated from mainland populations. Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings ...
Natural Selection - Ms Williams
... Each organism has habitat needs • Habitat = the environment where an organism lives - It includes living and nonliving elements • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms ac ...
... Each organism has habitat needs • Habitat = the environment where an organism lives - It includes living and nonliving elements • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms ac ...
Purple Spotted Gudgeon – Mogurnda adspersa
... apply to fish that have been cultivated or kept under the authority of an aquaculture permit. There can also be significant penalties for causing damage to the habitat of a threatened species without approval through actions such as dredging riverbeds, removing large woody debris and constructing ba ...
... apply to fish that have been cultivated or kept under the authority of an aquaculture permit. There can also be significant penalties for causing damage to the habitat of a threatened species without approval through actions such as dredging riverbeds, removing large woody debris and constructing ba ...
Bandicoots - E602S22010
... are very tiny and hardly developed at all. They move into their mother's pouch to complete their development. Unusually for marsupials, bandicoots in the womb are attached to it by cords, and after they are born, the young climb the cords to reach the mother's pouch. The young of the Northern Brown ...
... are very tiny and hardly developed at all. They move into their mother's pouch to complete their development. Unusually for marsupials, bandicoots in the womb are attached to it by cords, and after they are born, the young climb the cords to reach the mother's pouch. The young of the Northern Brown ...
Macrotis lagotis, Bilby
... subpopulations, except for small-scale predator control conducted by the Central Land Council utilizing fox-specific bait stations at a key Bilby subpopulation in the Tanami Desert (R. Paltridge pers. comm.). Reintroduction was attempted at Dryandra (WA), where fox control is in place; however it wa ...
... subpopulations, except for small-scale predator control conducted by the Central Land Council utilizing fox-specific bait stations at a key Bilby subpopulation in the Tanami Desert (R. Paltridge pers. comm.). Reintroduction was attempted at Dryandra (WA), where fox control is in place; however it wa ...
Biomes - SEPUP
... because its traits are likely to still be helpful to it in this new environment. The enviclimates of these two locations are ronment where an organism lives is influenced by both bioticc (living) and abiotic (nonliving) factors. Abiotic factors include climate and type of soil. Across the world not ...
... because its traits are likely to still be helpful to it in this new environment. The enviclimates of these two locations are ronment where an organism lives is influenced by both bioticc (living) and abiotic (nonliving) factors. Abiotic factors include climate and type of soil. Across the world not ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.