Turbinaria ornata as an herbivory refuge for associate
... it becomes important to understand the implications of changing amounts of macroalgae to reef community structure. The possibility of an increase in local algal diversity due to an associational herbivory refuge provided by another alga may have increasingly important ramiWcations in coral reef ecos ...
... it becomes important to understand the implications of changing amounts of macroalgae to reef community structure. The possibility of an increase in local algal diversity due to an associational herbivory refuge provided by another alga may have increasingly important ramiWcations in coral reef ecos ...
restoration of tipton kangaroo rats at kern national wildlife refuge
... significantly reduced throughout their historic range in the San Joaquin Valley, California, primarily due to profound fragmentation, degradation, and loss of habitat. Much of the habitat within their former range was displaced by agricultural, industrial, and urban development, facilitated by the c ...
... significantly reduced throughout their historic range in the San Joaquin Valley, California, primarily due to profound fragmentation, degradation, and loss of habitat. Much of the habitat within their former range was displaced by agricultural, industrial, and urban development, facilitated by the c ...
parks victoria technical series ecosystem conceptual models for
... There is no single natural scale at which ecological patterns should be characterised (Levin 1992). This project focuses on the meso- or topo-scale (a few hundreds of kilometres). At this scale the main drivers are climate, rock type and topography, which together determine variations in nutrient av ...
... There is no single natural scale at which ecological patterns should be characterised (Levin 1992). This project focuses on the meso- or topo-scale (a few hundreds of kilometres). At this scale the main drivers are climate, rock type and topography, which together determine variations in nutrient av ...
Rountree, R.A., and K.W. Able. 2007
... nekton can cover long distances over short time periods (e.g. the species habitat of the Atlantic silverside, Menidia menidia, would be all inshore continental shelf and estuarine waters because the species is widely distributed and makes extensive movements over daily, tidal, ontogenetic and season ...
... nekton can cover long distances over short time periods (e.g. the species habitat of the Atlantic silverside, Menidia menidia, would be all inshore continental shelf and estuarine waters because the species is widely distributed and makes extensive movements over daily, tidal, ontogenetic and season ...
Effects of physical disturbance and habitat
... become more frequent and severer and thus have a greater damaging effect on ecosystems than earlier. As disturbance events are unevenly distributed in space and time, a mosaic of patches is generated at different stages in a successional sequence (Connell 1978, Pickett & White 1985, Hall 1994). This ...
... become more frequent and severer and thus have a greater damaging effect on ecosystems than earlier. As disturbance events are unevenly distributed in space and time, a mosaic of patches is generated at different stages in a successional sequence (Connell 1978, Pickett & White 1985, Hall 1994). This ...
Attachment 2. Biological Review for Endangered Species Act Compliance with... Contingency Plan April through September Project Description
... (Hydrology 1) represents an unmodified set of D-1641 standards for NDOI, Vernalis flows, and Delta Cross Channel Gate operations, while a Project Description scenario (Hydrology 2) included a modified NDOI and Vernalis flows. The April modeled Vernalis average monthly flow, which were inclusive of a ...
... (Hydrology 1) represents an unmodified set of D-1641 standards for NDOI, Vernalis flows, and Delta Cross Channel Gate operations, while a Project Description scenario (Hydrology 2) included a modified NDOI and Vernalis flows. The April modeled Vernalis average monthly flow, which were inclusive of a ...
• . rtF,~,.;;;:,
... in San Luis Reservoir and DWR's and Reclamation's reservoirs north of the Delta and associated water supply needs of those reservoirs. This action should also not have an unreasonable impact to fish and wildlife. Reclamation and DWR have conducted a Biological Review and are seeking concurrence from ...
... in San Luis Reservoir and DWR's and Reclamation's reservoirs north of the Delta and associated water supply needs of those reservoirs. This action should also not have an unreasonable impact to fish and wildlife. Reclamation and DWR have conducted a Biological Review and are seeking concurrence from ...
Northwest Field Notes, Annotated / 1961
... precipitation or only traces during August, with temperatures average or slightly below normal. The only exception was central and northern British Columbia, which was colder and wetter than normal. The August pattern continued through the first half of September, but around mid-month subnormal temp ...
... precipitation or only traces during August, with temperatures average or slightly below normal. The only exception was central and northern British Columbia, which was colder and wetter than normal. The August pattern continued through the first half of September, but around mid-month subnormal temp ...
Macquarie Perch refuge project - NSW Department of Primary
... The Macquarie Perch (Macquaria australasica) is a medium sized native freshwater fish which was historically found in the southern Murray Darling Basin and parts of south-eastern coastal New South Wales (NSW), however the coastal population now appear to be a separate species (Gilligan pers comm). B ...
... The Macquarie Perch (Macquaria australasica) is a medium sized native freshwater fish which was historically found in the southern Murray Darling Basin and parts of south-eastern coastal New South Wales (NSW), however the coastal population now appear to be a separate species (Gilligan pers comm). B ...
Habitat–performance relationships: finding the right metric at a given
... Habitat use generally refers to the way in which an individual or species chooses habitat resources or conditions to meet its life-history needs. Habitat use therefore can be directly described from observations of how the animal interacts with habitat features, or it can be inferred from associatio ...
... Habitat use generally refers to the way in which an individual or species chooses habitat resources or conditions to meet its life-history needs. Habitat use therefore can be directly described from observations of how the animal interacts with habitat features, or it can be inferred from associatio ...
Final report on Effects of environment on
... and biomass in heavily fished areas. However, in the North Sea, the reduction in biomass and production mainly occurred in size and species groups that were not the main prey of the commercial fishes feeding (sole and plaice) on the trawling grounds. For most of the smaller infaunal invertebrates ea ...
... and biomass in heavily fished areas. However, in the North Sea, the reduction in biomass and production mainly occurred in size and species groups that were not the main prey of the commercial fishes feeding (sole and plaice) on the trawling grounds. For most of the smaller infaunal invertebrates ea ...
Resolution VIII.33 - The Ramsar Convention on Wetlands
... importantly, temporary pools dry out for long enough periods to prevent the development of the more widespread plant and animal communities characteristic of more permanent wetlands. ...
... importantly, temporary pools dry out for long enough periods to prevent the development of the more widespread plant and animal communities characteristic of more permanent wetlands. ...
View PDF - Cramer Fish Sciences
... and evolutionary terms. On one hand, this statement is similar to the timestability hypothesis (131) that argues that extinction rates will be lower and thus more species will accumulate in climatically stable regions than in variable ones. A similar interpretation can be made for smaller spatial an ...
... and evolutionary terms. On one hand, this statement is similar to the timestability hypothesis (131) that argues that extinction rates will be lower and thus more species will accumulate in climatically stable regions than in variable ones. A similar interpretation can be made for smaller spatial an ...
Community structure and organization of tidepools
... has been less well documented. The importance of interspecific competition has been consistently shown in tidepools, particularly among algal species, which usually are the dominant space occupiers. Although the introduction of most species into tidepools depends upon recruitment from the surroundin ...
... has been less well documented. The importance of interspecific competition has been consistently shown in tidepools, particularly among algal species, which usually are the dominant space occupiers. Although the introduction of most species into tidepools depends upon recruitment from the surroundin ...
Recreational use of forests and disturbance of wildlife
... • The literature tends to group activities together in categories that describe the physical characteristics of disturbance, such as ‘trampling’. This masks considerable likely variation between recreational users, habitat and wildlife. • Five key generalisations can be made about the impacts of r ...
... • The literature tends to group activities together in categories that describe the physical characteristics of disturbance, such as ‘trampling’. This masks considerable likely variation between recreational users, habitat and wildlife. • Five key generalisations can be made about the impacts of r ...
Behavioural ecology of the black-flanked rock
... energy costs, and intraspecific agonistic interactions, they can only can survive in their present environment if they have access to complex rock refuge. This rock resource not only enables them to avoid extreme ambient temperatures, but also gives them protection against predators particularly whe ...
... energy costs, and intraspecific agonistic interactions, they can only can survive in their present environment if they have access to complex rock refuge. This rock resource not only enables them to avoid extreme ambient temperatures, but also gives them protection against predators particularly whe ...
It-: ,:Jl dOoS
... Purpose and Need for Plan .........................................................................................................................................1 Establishment of the Refuge ........................................................................................................... ...
... Purpose and Need for Plan .........................................................................................................................................1 Establishment of the Refuge ........................................................................................................... ...
The Effects of Stream Habitat Modification on the Life
... landscape due to deforestation, drainage of wetlands and farmland, grazing, water abstraction, impoundment and the introduction of exotic species have influenced watersheds directly and indirectly in many countries for several millennia (Allan, 1995) and in New Zealand for over 100 years. These chan ...
... landscape due to deforestation, drainage of wetlands and farmland, grazing, water abstraction, impoundment and the introduction of exotic species have influenced watersheds directly and indirectly in many countries for several millennia (Allan, 1995) and in New Zealand for over 100 years. These chan ...
Disturbance and Diversity in Low-Productivity
... diversity in low-productivity ecosystems (Figure 12.2). The GRH suggests that resource availability on its own is largely sufficient to explain these patterns, with some contribution from evolved grazing tolerance. Olff and Ritchie (1998; O&R) posit that precipitation and herbivore size interact wit ...
... diversity in low-productivity ecosystems (Figure 12.2). The GRH suggests that resource availability on its own is largely sufficient to explain these patterns, with some contribution from evolved grazing tolerance. Olff and Ritchie (1998; O&R) posit that precipitation and herbivore size interact wit ...
Volcanism and arthropods: a review
... are among the most diverse organisms on the planet and play key functional roles in all ecosystems. Existing information on the effects of volcanic disturbances on arthropods is scattered. The aim of this review is to find generalities in the responses of arthropods from terrestrial and aquatic envi ...
... are among the most diverse organisms on the planet and play key functional roles in all ecosystems. Existing information on the effects of volcanic disturbances on arthropods is scattered. The aim of this review is to find generalities in the responses of arthropods from terrestrial and aquatic envi ...
RESEARCH REPORT
... results of replicates in which bass were absent, and observations of stomach contents of bass after each trial. Recapture of bluegills in the small size group ranged from an average of 87% in the completely vegetated pen to 98% in 2S and NY enclosures (Figure 2). Recoveries of larger bluegills were ...
... results of replicates in which bass were absent, and observations of stomach contents of bass after each trial. Recapture of bluegills in the small size group ranged from an average of 87% in the completely vegetated pen to 98% in 2S and NY enclosures (Figure 2). Recoveries of larger bluegills were ...
Sage Grouse Population Management Risks, Conservation
... RISK: Unable to determine trend of population. Rated low NDOW and USFWS currently use lek counts and wing composition data to track population trend. Lek counts are conducted by NDOW using a helicopter. Every active lek on the refuge is flown twice, on consecutive days. Average number of males per ...
... RISK: Unable to determine trend of population. Rated low NDOW and USFWS currently use lek counts and wing composition data to track population trend. Lek counts are conducted by NDOW using a helicopter. Every active lek on the refuge is flown twice, on consecutive days. Average number of males per ...
generalist feeding behaviors of aedes sierrensis larvae and their
... within water-filled tree holes in western North America (Bohart and Washino 1978). Eggs are laid throughout the late spring and summer in moist tree holes, and they remain in diapause in a drought-resistant embryonic state until the onset of rains during the following fall and winter. Larvae begin h ...
... within water-filled tree holes in western North America (Bohart and Washino 1978). Eggs are laid throughout the late spring and summer in moist tree holes, and they remain in diapause in a drought-resistant embryonic state until the onset of rains during the following fall and winter. Larvae begin h ...
DENSITY-DEPENDENT PREDATION, HABITAT VARIATION, AND
... Differential abundance of bivalves by sediment type might be due to physical properties of the sediment, food availability, the geochemical environment, or changes in predator-prey relationships. Sediment composition alone can favor survival of one trophic group over another (Rhoads and Young 1970). ...
... Differential abundance of bivalves by sediment type might be due to physical properties of the sediment, food availability, the geochemical environment, or changes in predator-prey relationships. Sediment composition alone can favor survival of one trophic group over another (Rhoads and Young 1970). ...
Desiccation of Rock Pool Habitats and Its Influence on Population
... of populations or strongly disrupt species life cycles [3,12]. As a result, many species are restricted to stable habitats. However, habitat instabilities are common, and some species evolved mechanisms to deal with them. These include various physiological adaptations to the environmental stress or ...
... of populations or strongly disrupt species life cycles [3,12]. As a result, many species are restricted to stable habitats. However, habitat instabilities are common, and some species evolved mechanisms to deal with them. These include various physiological adaptations to the environmental stress or ...