Chapter 54(Community Ecology)
... • Species richness generally declines along an equatorial-polar gradient and is especially great in the tropics • Two key factors in equatorial-polar gradients of species richness are probably evolutionary history and climate • The greater age of tropical environments may account for the greater spe ...
... • Species richness generally declines along an equatorial-polar gradient and is especially great in the tropics • Two key factors in equatorial-polar gradients of species richness are probably evolutionary history and climate • The greater age of tropical environments may account for the greater spe ...
Opposite relationships between invasibility and native species
... variable, and the demand by resident species determines the resource availability (Shea and Chesson 2002). Therefore, at smaller scales, a negative relationship between invasibility and native species richness is expected. Supporting this hypothesis, resource levels in small scale experiments were l ...
... variable, and the demand by resident species determines the resource availability (Shea and Chesson 2002). Therefore, at smaller scales, a negative relationship between invasibility and native species richness is expected. Supporting this hypothesis, resource levels in small scale experiments were l ...
weed management programs in new south wales national parks
... statutory responsibility for the management of these areas and for the protection and care of nature, and Aboriginal and historic heritage throughout New South Wales. The Service aims to manage weed populations to reduce their adverse impacts rather than to attempt eradication, which in most cases i ...
... statutory responsibility for the management of these areas and for the protection and care of nature, and Aboriginal and historic heritage throughout New South Wales. The Service aims to manage weed populations to reduce their adverse impacts rather than to attempt eradication, which in most cases i ...
Open Research Online Identifying indicators of atmospheric nitrogen
... Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online’s data policy on reuse of materials please consult the policies page. ...
... Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online’s data policy on reuse of materials please consult the policies page. ...
Species Selection: Theory and Data
... Complex systems naturally fall into hierarchies. Among the many hierarchies found in biological systems, the one incorporating genes, bodies, populations, species, and clades has incited the greatest controversy, centering on the dynamics of units at different levels and the consequences. Selfish or ...
... Complex systems naturally fall into hierarchies. Among the many hierarchies found in biological systems, the one incorporating genes, bodies, populations, species, and clades has incited the greatest controversy, centering on the dynamics of units at different levels and the consequences. Selfish or ...
Bateman et al 2013 dispersal scenarios in print
... be useful in such cases to determine the potential impact of these invasive species (Thuiller et al., 2005a,b). No-dispersal To deal with the inherent limitation of the full-dispersal scenario, no-dispersal scenarios are often applied to future projections in conjunction with full-dispersal scenario ...
... be useful in such cases to determine the potential impact of these invasive species (Thuiller et al., 2005a,b). No-dispersal To deal with the inherent limitation of the full-dispersal scenario, no-dispersal scenarios are often applied to future projections in conjunction with full-dispersal scenario ...
Beneficial Insects and Mites - Manatee County Extension Office
... Importing natural enemies from abroad is an important step in pest management in part because many pest insects in the United States and elsewhere were originally introduced from other countries. Accidental introductions of foreign pests have occurred throughout the world as a result of centuries of ...
... Importing natural enemies from abroad is an important step in pest management in part because many pest insects in the United States and elsewhere were originally introduced from other countries. Accidental introductions of foreign pests have occurred throughout the world as a result of centuries of ...
Eco-evolutionary buffering: rapid evolution facilitates regional
... The key processes are birth and death events, migration between patches, evolution of two traits involved in priority effects (general sensitivity to competition and sensitivity to interference by ...
... The key processes are birth and death events, migration between patches, evolution of two traits involved in priority effects (general sensitivity to competition and sensitivity to interference by ...
Alaeddin Microbiology lab 11- Four Quadrant straking and Initial
... Introduction: In nature, bacteria are usually found in mixed populations. ...
... Introduction: In nature, bacteria are usually found in mixed populations. ...
View plan for Kahuku Training Area
... Big Island. On Oahu, only known from KTA and Punaluu. Likely introduced via military training. There are two sites OANRP is still currently finding individuals. Other three site OANRP staff have not found since 2006. One new site found in 2010. First discovered in 1998. Highly invasive grass with kn ...
... Big Island. On Oahu, only known from KTA and Punaluu. Likely introduced via military training. There are two sites OANRP is still currently finding individuals. Other three site OANRP staff have not found since 2006. One new site found in 2010. First discovered in 1998. Highly invasive grass with kn ...
Fens and floodplains of the temperate zone
... relative importance of rainwater and finally to acidification of the top layer (Wassen et al. 1996; van Diggelen 1998; Grootjans et al. 2006, this issue). This process may take many decades (van Diggelen et al. 1996; van der Hoek & Sýkora 2006, this issue) and go unnoticed for a while (van Belle et al ...
... relative importance of rainwater and finally to acidification of the top layer (Wassen et al. 1996; van Diggelen 1998; Grootjans et al. 2006, this issue). This process may take many decades (van Diggelen et al. 1996; van der Hoek & Sýkora 2006, this issue) and go unnoticed for a while (van Belle et al ...
05_3eTIF
... A) because restoration ecology can restore ecosystems B) because humans can find and make their own resources C) because zoos and gardens contain most important species and breeding technologies are improving D) because our understanding of genetics allows us to restore populations E) incorrect; the ...
... A) because restoration ecology can restore ecosystems B) because humans can find and make their own resources C) because zoos and gardens contain most important species and breeding technologies are improving D) because our understanding of genetics allows us to restore populations E) incorrect; the ...
Tree species composition and diversity gradients in white
... (2004). High-várzea forests become established where the annual water column averages less than 3 m in height (< 50 days year)1), and consist of late successional forests that occupy the transitional zone between flooded and nonflooded sites (Ayres, 1993; Wittmann et al., 2002). Frequency of geomor ...
... (2004). High-várzea forests become established where the annual water column averages less than 3 m in height (< 50 days year)1), and consist of late successional forests that occupy the transitional zone between flooded and nonflooded sites (Ayres, 1993; Wittmann et al., 2002). Frequency of geomor ...
Assessment Report of Planaria (specifically the Flatworm Schmidtea
... S. mediterranea are not listed in CITES Appendix I, II or III, nor is it an endangered species. ...
... S. mediterranea are not listed in CITES Appendix I, II or III, nor is it an endangered species. ...
Word - 684 KB
... S. mediterranea are not listed in CITES Appendix I, II or III, nor is it an endangered species. ...
... S. mediterranea are not listed in CITES Appendix I, II or III, nor is it an endangered species. ...
ktf0482
... areas where submarine groundwater discharge (SGD) or seepage occurs rather than in estuaries (Ruwa and Polk, 1986). Mangrove forests in Kenya are currently being heavily exploited (Kokwaro, 1986) especially in urban areas where they are under environmental stress due to uncontrolled disposal of dome ...
... areas where submarine groundwater discharge (SGD) or seepage occurs rather than in estuaries (Ruwa and Polk, 1986). Mangrove forests in Kenya are currently being heavily exploited (Kokwaro, 1986) especially in urban areas where they are under environmental stress due to uncontrolled disposal of dome ...
Choosing stand management methods for restoring planted ancient
... 2003. Initially the ground flora was sparse, but a dense thicket of bramble grew quickly. This developed to dominate the site to such an extent that, before the oak could be thinned in 2007, it was necessary to flail some areas to allow access for the chainsaw operator. Natural regeneration of nativ ...
... 2003. Initially the ground flora was sparse, but a dense thicket of bramble grew quickly. This developed to dominate the site to such an extent that, before the oak could be thinned in 2007, it was necessary to flail some areas to allow access for the chainsaw operator. Natural regeneration of nativ ...
260 KB - Hawaii Biological Survey
... literature bias must be recognized to avoid applying generalizations appropriate for temporal zone systems to Hawaiian streams. Notable structural and environmental differences in Hawaiian streams compared to temperate systems include the minimal (perhaps nonexistent) hyporheic zone, narrow seasonal ...
... literature bias must be recognized to avoid applying generalizations appropriate for temporal zone systems to Hawaiian streams. Notable structural and environmental differences in Hawaiian streams compared to temperate systems include the minimal (perhaps nonexistent) hyporheic zone, narrow seasonal ...
Ecological niches occupied by in South African rangeland communities Dichapetalum cymosum
... Dichapetalum cymosum (Hook.) Engl., commonly known as gifblaar (Afrikaans for poison leaf), is an underground woody plant (Vahrmeijer 1981, Kellerman et al. 2005). A sole representative in South Africa of the small tropical family, Dichapetalaceae (Mogg 1930), D. cymosum also occurs in Angola, Namib ...
... Dichapetalum cymosum (Hook.) Engl., commonly known as gifblaar (Afrikaans for poison leaf), is an underground woody plant (Vahrmeijer 1981, Kellerman et al. 2005). A sole representative in South Africa of the small tropical family, Dichapetalaceae (Mogg 1930), D. cymosum also occurs in Angola, Namib ...
Patterns of among- and within-species variation in
... PREMISE OF THE STUDY: Coflowering plants are at risk for receiving pollen from heterospecifics as well as conspecifics, yet evidence shows wide variation in the degree that heterospecific pollen transfer occurs. Evaluation of patterns and correlates of among- and within-species variation in heterosp ...
... PREMISE OF THE STUDY: Coflowering plants are at risk for receiving pollen from heterospecifics as well as conspecifics, yet evidence shows wide variation in the degree that heterospecific pollen transfer occurs. Evaluation of patterns and correlates of among- and within-species variation in heterosp ...
- CUNY Academic Works
... Background: The lower Congo River (LCR) is a region of exceptional species diversity and endemism in the Congo basin, including numerous species of spiny eels (genus Mastacembelus). Four of these exhibit distinctive phenotypes characterized by greatly reduced optic globes deeply embedded into the he ...
... Background: The lower Congo River (LCR) is a region of exceptional species diversity and endemism in the Congo basin, including numerous species of spiny eels (genus Mastacembelus). Four of these exhibit distinctive phenotypes characterized by greatly reduced optic globes deeply embedded into the he ...
DDT Persuasive Essay - APES -
... DDT causes damage to the environment and people by creating fluctuation in the ecosystem. The aforementioned dilemma with the dying lizards cause a decrease in diversity which hinders population control. The caterpillars thrived and chewed on roof’s pillar which made them collapse, thus displacing t ...
... DDT causes damage to the environment and people by creating fluctuation in the ecosystem. The aforementioned dilemma with the dying lizards cause a decrease in diversity which hinders population control. The caterpillars thrived and chewed on roof’s pillar which made them collapse, thus displacing t ...
African Herp News 58, December 2012
... This handsome volume (215 x 150 x 45 mm), No 38 of the Frankfurt Contributions to Natural History, provides splendid and long-needed coverage of the rich herpetofauna of Ethiopia and Eritrea, and it is superbly illustrated with 433 ‘figures’ (mostly colour plates). It begins with a very comprehensiv ...
... This handsome volume (215 x 150 x 45 mm), No 38 of the Frankfurt Contributions to Natural History, provides splendid and long-needed coverage of the rich herpetofauna of Ethiopia and Eritrea, and it is superbly illustrated with 433 ‘figures’ (mostly colour plates). It begins with a very comprehensiv ...
Invasions and Extinctions Reshape Coastal
... suggesting that extinctions and invasions might offset one another with little net change in diversity. Because different processes drive extinctions and invasion (e.g., overfishing versus ballast water transport), the types of species being gained and lost might differ, however. For example, extinc ...
... suggesting that extinctions and invasions might offset one another with little net change in diversity. Because different processes drive extinctions and invasion (e.g., overfishing versus ballast water transport), the types of species being gained and lost might differ, however. For example, extinc ...
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.