Leaf trait variation and field spectroscopy of generalist tree species
... advances in trait-based community ecology over the past decade (Funk et al., 2016), the importance of environmental filters is still debated, especially at small scales where biotic factors may prevail over abiotic environmental constraints (Vellend, 2010). Global analyses of leaf nitrogen, phosphor ...
... advances in trait-based community ecology over the past decade (Funk et al., 2016), the importance of environmental filters is still debated, especially at small scales where biotic factors may prevail over abiotic environmental constraints (Vellend, 2010). Global analyses of leaf nitrogen, phosphor ...
Document
... and patterns of human exploitation have also been cited as increasing the impact of invasive species on islands (Whittaker, 1998; Cronk and Fuller, 2001; Kairo et al., 2005). Whatever the cause, direct and indirect competition of exotics with native species for resources and critical habitat can lea ...
... and patterns of human exploitation have also been cited as increasing the impact of invasive species on islands (Whittaker, 1998; Cronk and Fuller, 2001; Kairo et al., 2005). Whatever the cause, direct and indirect competition of exotics with native species for resources and critical habitat can lea ...
Carol A. Blanchette for the degree of Doctor of Philosophy... presented on August 29, 1994. Factors on Population
... Correlation between mean measured maximum wave force at the FCP wave-exposed site (recorded from the maximum wave force meters) and predicted maximum wave force using the maximum value for wave height from buoy #50 over the 24 hour period that the maximum wave force meter was deployed. 80 ...
... Correlation between mean measured maximum wave force at the FCP wave-exposed site (recorded from the maximum wave force meters) and predicted maximum wave force using the maximum value for wave height from buoy #50 over the 24 hour period that the maximum wave force meter was deployed. 80 ...
Invasive Species Success Stories – They Exist!
... collapse due to sea lamprey predation. – More sea lampreys would mean fewer fish and failed restoration. – The ecological and economic damage caused by increased sea lamprey abundances would be costly, devastating, and difficult or impossible to reverse. ...
... collapse due to sea lamprey predation. – More sea lampreys would mean fewer fish and failed restoration. – The ecological and economic damage caused by increased sea lamprey abundances would be costly, devastating, and difficult or impossible to reverse. ...
Download #115 Rare plants within managed units of 'Ola'a forest
... and outside the Pu'u Unit. These large terrestrial ferns are palatable to pigs and are sensitive to disturbance of the forest floor. The lobelioid '6hl kEpau (Clermontia hawaiiensis) was noted at only one locality within the Ag Unit, but two other '6h3 species (C. montis-loa and C. parviflora) were ...
... and outside the Pu'u Unit. These large terrestrial ferns are palatable to pigs and are sensitive to disturbance of the forest floor. The lobelioid '6hl kEpau (Clermontia hawaiiensis) was noted at only one locality within the Ag Unit, but two other '6h3 species (C. montis-loa and C. parviflora) were ...
Fish Habitat Management for PA Impoundments
... reservoirs where no draw-downs occurred, the structures were sometimes placed on the ice, for submergence in spring, when the ice broke up. Although the popularity of this program grew (28 approved projects placed 884 structures in 1989), the design techniques of artificial habitats for impoundments ...
... reservoirs where no draw-downs occurred, the structures were sometimes placed on the ice, for submergence in spring, when the ice broke up. Although the popularity of this program grew (28 approved projects placed 884 structures in 1989), the design techniques of artificial habitats for impoundments ...
Ecology, conservation, and restoration of large carnivores in western
... The black bear is the most successful of the world’s eight bear species at co-existing with humans. Black bear status in North America varies from pest to threatened (Pelton 2000). The range of the species in the western U.S. is largely associated with public lands in forested mountain terrain. Dens ...
... The black bear is the most successful of the world’s eight bear species at co-existing with humans. Black bear status in North America varies from pest to threatened (Pelton 2000). The range of the species in the western U.S. is largely associated with public lands in forested mountain terrain. Dens ...
Chromolaena odorata ungulate grazing on ant body size and communities in
... C. odorata is a highly invasive plant known to invade to an impenetrable extent, out shading and eliminating all competition of indigenous vegetation to many parts of the world. The rapid invasion and spread of C. odorata in natural environments, including large parts of HiP, is making ecosystems un ...
... C. odorata is a highly invasive plant known to invade to an impenetrable extent, out shading and eliminating all competition of indigenous vegetation to many parts of the world. The rapid invasion and spread of C. odorata in natural environments, including large parts of HiP, is making ecosystems un ...
Facilitation in the conceptual melting pot
... transgress the boundaries of definitions, but to keep broadly within the framework of existing facilitation research (and research in other arenas), we would suggest that direct beneficial trophic interactions between different groups of organisms should not be considered facilitation, but predation. ...
... transgress the boundaries of definitions, but to keep broadly within the framework of existing facilitation research (and research in other arenas), we would suggest that direct beneficial trophic interactions between different groups of organisms should not be considered facilitation, but predation. ...
Adaptation, density dependence and the responses of trophic level
... The responses of abundances to the extrinsic per capita mortality rates are obtained by differentiating the equilibrium conditions for equations (1a–d) with respect to each of the di. The resulting formulae can be simplified somewhat by assuming that the equilibrium of the system is locally stable. ...
... The responses of abundances to the extrinsic per capita mortality rates are obtained by differentiating the equilibrium conditions for equations (1a–d) with respect to each of the di. The resulting formulae can be simplified somewhat by assuming that the equilibrium of the system is locally stable. ...
link to thesis - Victoria University of Wellington
... temperate subtidal rocky coasts: the Laminareales, and the Fucales. Both of these families are habitat-forming species for a wide variety of invertebrates and fishes. Variation in the presence, density, and composition of brown macroalgae can have large influences on the evolution and ecology of ass ...
... temperate subtidal rocky coasts: the Laminareales, and the Fucales. Both of these families are habitat-forming species for a wide variety of invertebrates and fishes. Variation in the presence, density, and composition of brown macroalgae can have large influences on the evolution and ecology of ass ...
Effects of fisheries closure size, age, and history of compliance on
... variables (Allen & Werner 2002, Russ 2002, Halpern 2003, Ortiz & Tissot 2008). Trends and relationships within the fisheries closures with the above variables were examined rather than control-impact relationships between closures and fished areas. Hence, the effect of closure compliance, size, and ...
... variables (Allen & Werner 2002, Russ 2002, Halpern 2003, Ortiz & Tissot 2008). Trends and relationships within the fisheries closures with the above variables were examined rather than control-impact relationships between closures and fished areas. Hence, the effect of closure compliance, size, and ...
Direct and indirect effects of the introduced alga Sargassum
... meters into the water column, they have the potential to dampen water flow. I tested the hypothesis that S. muticum reduced water flow, using alabaster dissolution blocks following the methods of Eckman et al. (1989). Small blocks of alabaster (di-hydrated calcium sulfate) were cut from a larger blo ...
... meters into the water column, they have the potential to dampen water flow. I tested the hypothesis that S. muticum reduced water flow, using alabaster dissolution blocks following the methods of Eckman et al. (1989). Small blocks of alabaster (di-hydrated calcium sulfate) were cut from a larger blo ...
Recovery Strategy for the Butler`s Gartersnake (Thamnophis butleri
... programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2002, c.29) (SARA), the federal competent ministers are responsible for the preparation of recovery strategies for listed Extirpated, Endangered, and Threatened species and are re ...
... programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2002, c.29) (SARA), the federal competent ministers are responsible for the preparation of recovery strategies for listed Extirpated, Endangered, and Threatened species and are re ...
- New Zealand Ecological Society
... clearance, and predation and competition from introduced European mammals. Some forest bird species have continued to decline since 1986, while others have increased, usually after intensive species-specific research and management programmes. In this paper, we review what is known about major cause ...
... clearance, and predation and competition from introduced European mammals. Some forest bird species have continued to decline since 1986, while others have increased, usually after intensive species-specific research and management programmes. In this paper, we review what is known about major cause ...
Effects of Food Type, Habitat, and Fish Predation on the Relative
... then ejected without being ingested) at the lake bottom. Their high filtering capacity has led to increased water clarity (Leach 1992, Budd et al. 2001) and increased light penetration has led to an increase in near-shore macrophytes abundance (Stuckey and Moore 1995, Skubinna et al. 1995) and perip ...
... then ejected without being ingested) at the lake bottom. Their high filtering capacity has led to increased water clarity (Leach 1992, Budd et al. 2001) and increased light penetration has led to an increase in near-shore macrophytes abundance (Stuckey and Moore 1995, Skubinna et al. 1995) and perip ...
Nordic Society Oikos
... W. J. Resetarits, Jr., Dept of Zoology, Duke Univ., Durham, NC 27708, USA (present address: Centerfor Aquatic Ecology, Illinois Natural History Survey, 607 E. Peabody Dr., Champaign,IL 61820, USA [[email protected]]). ...
... W. J. Resetarits, Jr., Dept of Zoology, Duke Univ., Durham, NC 27708, USA (present address: Centerfor Aquatic Ecology, Illinois Natural History Survey, 607 E. Peabody Dr., Champaign,IL 61820, USA [[email protected]]). ...
Detrimental effects of two widespread invasive ant species on
... ingredient hydramethylnon (AMDROÒ) on one randomly selected islet from each pair (Mokuauia and Moku Nui). The application of AMDROÒ occurred after the shearwaters left the islets in December and prior to their return in March, with reapplication 1 year later in February 2004. Application rates were ...
... ingredient hydramethylnon (AMDROÒ) on one randomly selected islet from each pair (Mokuauia and Moku Nui). The application of AMDROÒ occurred after the shearwaters left the islets in December and prior to their return in March, with reapplication 1 year later in February 2004. Application rates were ...
grouse news - Galliformes Specialist Group
... Secretary Jewell joined with USDA Under Secretary Robert Bonnie, Nevada Governor Brian Sandoval, California Natural Resources Agency Secretary John Laird and other state and local partners to celebrate an extensive and long-term conservation partnership on behalf of the bi-state greater sagegrouse p ...
... Secretary Jewell joined with USDA Under Secretary Robert Bonnie, Nevada Governor Brian Sandoval, California Natural Resources Agency Secretary John Laird and other state and local partners to celebrate an extensive and long-term conservation partnership on behalf of the bi-state greater sagegrouse p ...
AP Bio Summer Study Study Sheet
... 8. Describe human population growth from prehistory to present. 9. Explain the factors that lead to the extinction of a species, and which types of species are most vulnerable to extinction. 10. Explain the factors that affect the diversity index of a community, including habitat, physical structure ...
... 8. Describe human population growth from prehistory to present. 9. Explain the factors that lead to the extinction of a species, and which types of species are most vulnerable to extinction. 10. Explain the factors that affect the diversity index of a community, including habitat, physical structure ...
effects of gypsy moth outbreaks on north american woodpeckers
... and studies have generally failed to find that gypsy moth larvae are a major food item in common birds’ diets (Elkinton and Liebhold 1990). Indeed, at least one study in North America has found that gypsy moth outbreaks led to declines of several avian species through increased defoliation and visib ...
... and studies have generally failed to find that gypsy moth larvae are a major food item in common birds’ diets (Elkinton and Liebhold 1990). Indeed, at least one study in North America has found that gypsy moth outbreaks led to declines of several avian species through increased defoliation and visib ...
Effects of gypsy moth outbreaks on North American woodpeckers
... of a magnitude sufficient to have effects on community structure (Ostfeld and Keesing 2000, Koenig and Liebhold 2005). Prior studies have yielded mixed results regarding the degree to which gypsy moths are eaten by native animals and in turn how outbreaks influence their predators’ populations. Many ...
... of a magnitude sufficient to have effects on community structure (Ostfeld and Keesing 2000, Koenig and Liebhold 2005). Prior studies have yielded mixed results regarding the degree to which gypsy moths are eaten by native animals and in turn how outbreaks influence their predators’ populations. Many ...
Weed Risk Assessment: Calluna vulgaris
... and invades a range of other vegetation types (Keys and Syrett, 1995). A possible mechanism for competition may arise from associations between C. vulgaris and ericoid mycorrhiza. One study demonstrated increased reduction in root length of other species grown in proximity to mycorrhizal C. vulgaris ...
... and invades a range of other vegetation types (Keys and Syrett, 1995). A possible mechanism for competition may arise from associations between C. vulgaris and ericoid mycorrhiza. One study demonstrated increased reduction in root length of other species grown in proximity to mycorrhizal C. vulgaris ...
Prothonotary Warbler (Protonotaria citrea)
... standing or slow-moving water. The species nests in natural cavities and those excavated by other species, using small, shallow cavities that are situated at low heights. Properly designed nest boxes are also readily accepted. Males often build one or more incomplete ("dummy") nests. Nesting densiti ...
... standing or slow-moving water. The species nests in natural cavities and those excavated by other species, using small, shallow cavities that are situated at low heights. Properly designed nest boxes are also readily accepted. Males often build one or more incomplete ("dummy") nests. Nesting densiti ...
111 - CREAF
... total inorganic C in deep seawater (Broecker and Peng 1982), whereas biologists use a ratio of 106:16:1 based on Fleming’s analysis of the average elemental composition of marine organisms (Goldman et al. 1979). Different organisms can strongly differ in their C:N:P ratio, thus the Redfield N:P rati ...
... total inorganic C in deep seawater (Broecker and Peng 1982), whereas biologists use a ratio of 106:16:1 based on Fleming’s analysis of the average elemental composition of marine organisms (Goldman et al. 1979). Different organisms can strongly differ in their C:N:P ratio, thus the Redfield N:P rati ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.