Pollution, habitat loss, fishing, and climate change as critical threats
... conditions better than any other seabird group. This is because they are highly constrained in their foraging habitat, particularly during their breeding season (RopertCoudert et al. 2004). In contrast, volant seabirds, which ...
... conditions better than any other seabird group. This is because they are highly constrained in their foraging habitat, particularly during their breeding season (RopertCoudert et al. 2004). In contrast, volant seabirds, which ...
microbial diversity and global environmental issues
... variability among living organisms from all sources including, inter alia, terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part” (UNEP, 1992). For those concerned with quantitative assessments of biological diversity, the key issue in the CBD definiti ...
... variability among living organisms from all sources including, inter alia, terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part” (UNEP, 1992). For those concerned with quantitative assessments of biological diversity, the key issue in the CBD definiti ...
Invasion in a heterogeneous world: resistance, coexistence or
... Our focus is the effect on invasions of heterogeneity per se, such as might be quantified by the statistical variance. There are different types of heterogeneity. One important distinction is between environmental (or abiotic) heterogeneity vs. biotic heterogeneity. Environmental heterogeneity is va ...
... Our focus is the effect on invasions of heterogeneity per se, such as might be quantified by the statistical variance. There are different types of heterogeneity. One important distinction is between environmental (or abiotic) heterogeneity vs. biotic heterogeneity. Environmental heterogeneity is va ...
The three grades of metazoan animals
... • most sponges are marine (~5000 species) but there are ~150 freshwater sponge species • Sponges are found at all depths but certain species are restricted to particular depths due to how their spicules are formed • There are few sponge predators because they usually contain distasteful toxins • Som ...
... • most sponges are marine (~5000 species) but there are ~150 freshwater sponge species • Sponges are found at all depths but certain species are restricted to particular depths due to how their spicules are formed • There are few sponge predators because they usually contain distasteful toxins • Som ...
Porifera_1-18
... (predation and competition) are important : •Competition plays a more important role in determining sponge diversity in mangrove habitats. •Predation plays a more important role in determining sponge diversity in coral reef habitats. ...
... (predation and competition) are important : •Competition plays a more important role in determining sponge diversity in mangrove habitats. •Predation plays a more important role in determining sponge diversity in coral reef habitats. ...
Scaling-up Trait Variation from Individuals to Ecosystems
... Finally, Pettorelli et al. discuss how individual variation in functional traits can alter the strength and shape of predator functional responses. Such variation can alter the magnitude of the attack rate in a predator, impacting the strength of the trophic interaction, or lower prey handling time, ...
... Finally, Pettorelli et al. discuss how individual variation in functional traits can alter the strength and shape of predator functional responses. Such variation can alter the magnitude of the attack rate in a predator, impacting the strength of the trophic interaction, or lower prey handling time, ...
A metaanalysis of biotic resistance to exotic plant invasions
... unresolved. First, how effective is biotic resistance? Is it capable of completely repelling exotic invasions? Second, when in the invasion process does it operate most strongly? Third, which ecological interactions contribute most to resistance? Here we evaluate conventional wisdom concerning each ...
... unresolved. First, how effective is biotic resistance? Is it capable of completely repelling exotic invasions? Second, when in the invasion process does it operate most strongly? Third, which ecological interactions contribute most to resistance? Here we evaluate conventional wisdom concerning each ...
Common Name (Scientific name)
... Rearing and Overwintering: Cover for escape (undercut banks, logs, pools, surface turbulence, unburied cobbles), suitable water quality (temperature, oxygen, clarity), and enough light for algal and insect production and sight feeding. Deep pools and backwater habitat with good escape cover are part ...
... Rearing and Overwintering: Cover for escape (undercut banks, logs, pools, surface turbulence, unburied cobbles), suitable water quality (temperature, oxygen, clarity), and enough light for algal and insect production and sight feeding. Deep pools and backwater habitat with good escape cover are part ...
A meta-analysis of biotic resistance to exotic plant invasions
... unresolved. First, how effective is biotic resistance? Is it capable of completely repelling exotic invasions? Second, when in the invasion process does it operate most strongly? Third, which ecological interactions contribute most to resistance? Here we evaluate conventional wisdom concerning each ...
... unresolved. First, how effective is biotic resistance? Is it capable of completely repelling exotic invasions? Second, when in the invasion process does it operate most strongly? Third, which ecological interactions contribute most to resistance? Here we evaluate conventional wisdom concerning each ...
Disturbance, Scale, and Boundary in Wilderness
... The preservation of wilderness involves two paradoxes: First, we seek to preserve ecosystems that must change and, second, we must often apply human management to ecosystems where we ultimately want minimal human influence (White and Bratton 1980). Natural disturbances are among the most important s ...
... The preservation of wilderness involves two paradoxes: First, we seek to preserve ecosystems that must change and, second, we must often apply human management to ecosystems where we ultimately want minimal human influence (White and Bratton 1980). Natural disturbances are among the most important s ...
Chapter 07 Terrestrial Ecology
... The Nature Conservation (Koala) Conservation Plan 2006 (the ‘Koala Plan’) provides for the conservation of Koala (Phascolarctos cinereus) in Queensland and includes provisions for the assessment and management of Koalas during the development approval processes and implementation of projects. Differ ...
... The Nature Conservation (Koala) Conservation Plan 2006 (the ‘Koala Plan’) provides for the conservation of Koala (Phascolarctos cinereus) in Queensland and includes provisions for the assessment and management of Koalas during the development approval processes and implementation of projects. Differ ...
Spatiotemporal food web dynamics along a desert riparian–upland
... Increased awareness of spatiotemporal variation in species interactions has motivated the study of temporally-resolved food web dynamics at the landscape level. Empiricists have focused attention on cross-habitat flows of materials, nutrients, and prey, largely ignoring the movement of predators bet ...
... Increased awareness of spatiotemporal variation in species interactions has motivated the study of temporally-resolved food web dynamics at the landscape level. Empiricists have focused attention on cross-habitat flows of materials, nutrients, and prey, largely ignoring the movement of predators bet ...
Measuring and monitoring Biodiversity in Tropical
... than 40 countries from around the world. In addition to four days of paper presentations, there was also a one-day field trip, and a continuous poster session, with more than 35 posters, as well as computer demonstrations of software packages for identifying and measuring biodiversity. Biodiversity ...
... than 40 countries from around the world. In addition to four days of paper presentations, there was also a one-day field trip, and a continuous poster session, with more than 35 posters, as well as computer demonstrations of software packages for identifying and measuring biodiversity. Biodiversity ...
Johnson habitat quality
... vulnerable to pitfalls of small populations. However, the habitat with higher quality resources and higher rates of increase is best when wildlife managers are seeking the healthiest individuals possible, such as for trophy species or critically endangered species whose populations need to be enhanc ...
... vulnerable to pitfalls of small populations. However, the habitat with higher quality resources and higher rates of increase is best when wildlife managers are seeking the healthiest individuals possible, such as for trophy species or critically endangered species whose populations need to be enhanc ...
Habitat preferences and stocking densities of Bontebok in the
... stocking densities of Bontebok in the Bontebok National Park. I. Factors affecting their distribution.). The only larger herbivore species to survive in the area (Skead 1980, Van Rensburg 1975) was the Bontebok (Damaliscus pygargus pygargus, Pallas 1766, formerly known as Damaliscus dorcas dorcas cf ...
... stocking densities of Bontebok in the Bontebok National Park. I. Factors affecting their distribution.). The only larger herbivore species to survive in the area (Skead 1980, Van Rensburg 1975) was the Bontebok (Damaliscus pygargus pygargus, Pallas 1766, formerly known as Damaliscus dorcas dorcas cf ...
IDENTIFICATION OF IMPORTANT HABITATS IN THE LOWER
... In accordance with the focus of the National Estuary Program, evaluation species were those predominantly associated with wetland and coastal features. The FWS has particular interest in migratory wildlife, wetlands, anadromous fishes, and endangered species. The species for which habitats were iden ...
... In accordance with the focus of the National Estuary Program, evaluation species were those predominantly associated with wetland and coastal features. The FWS has particular interest in migratory wildlife, wetlands, anadromous fishes, and endangered species. The species for which habitats were iden ...
photic zone
... major determinants of the distribution of terrestrial biomes. Temperature influences distribution of plant growth forms directly through physiological effects. Precipitation and temperature act together to influence water availability and water loss by plants. Water availability and soil tempe ...
... major determinants of the distribution of terrestrial biomes. Temperature influences distribution of plant growth forms directly through physiological effects. Precipitation and temperature act together to influence water availability and water loss by plants. Water availability and soil tempe ...
Mojave Fringe-toed Lizard
... The Mojave fringe-toed lizard is known to occur at more than 35 sand dune complexes in California and one in Arizona, all of which are naturally occurring within the species' historical range (76 FR 61321– 61330; Norris 1958). Hollingsworth and Beaman (2001) state that although there is no published ...
... The Mojave fringe-toed lizard is known to occur at more than 35 sand dune complexes in California and one in Arizona, all of which are naturally occurring within the species' historical range (76 FR 61321– 61330; Norris 1958). Hollingsworth and Beaman (2001) state that although there is no published ...
The Effects of Spatial Scale on Trophic Interactions
... 1997). Homogenization of agricultural landscapes may even affect control of pest outbreaks by higher trophic levels. For example, large areas of spring cereals enhance populations of pests such as the bird-cherry oat aphid, a major pest in Scandinavia and Western Europe. In mosaic small-scaled lands ...
... 1997). Homogenization of agricultural landscapes may even affect control of pest outbreaks by higher trophic levels. For example, large areas of spring cereals enhance populations of pests such as the bird-cherry oat aphid, a major pest in Scandinavia and Western Europe. In mosaic small-scaled lands ...
nile perch - The Pringle Lab at Princeton
... of problem organisms is reflected in the effort of community groups working on private and public lands to remove pests and weeds and to restore and replant native species. However, this more aggressive stand toward invasive species, especially mammals, can lead to polarized attitudes within local c ...
... of problem organisms is reflected in the effort of community groups working on private and public lands to remove pests and weeds and to restore and replant native species. However, this more aggressive stand toward invasive species, especially mammals, can lead to polarized attitudes within local c ...
Loggerhead Shrike Prairie subspecies
... this strategy, as per section 37 of SARA. To the extent possible, it has been prepared in cooperation with the Governments of Alberta, Manitoba and Saskatchewan, Parks Canada Agency, Department of National Defence, and Agriculture and Agri-Food Canada. Success in the recovery of this species depends ...
... this strategy, as per section 37 of SARA. To the extent possible, it has been prepared in cooperation with the Governments of Alberta, Manitoba and Saskatchewan, Parks Canada Agency, Department of National Defence, and Agriculture and Agri-Food Canada. Success in the recovery of this species depends ...
Selection of a marker gene to construct a reference library
... structure and functions, making them important bio-indicators for wetland health (Fox et al., 2011). Among all factors affecting waterbird community dynamics, food availability is frequently considered to play one of the most important roles (Wang et al., 2013). However, recently suitable food resou ...
... structure and functions, making them important bio-indicators for wetland health (Fox et al., 2011). Among all factors affecting waterbird community dynamics, food availability is frequently considered to play one of the most important roles (Wang et al., 2013). However, recently suitable food resou ...
Introduction to Watershed Ecology
... watershed is just one of many types of ecosystems. Watershed ecology is essential knowledge for watershed managers because it teaches us that watersheds have structural and functional characteristics that can influence how human and natural communities coexist within them. The gross structure of a w ...
... watershed is just one of many types of ecosystems. Watershed ecology is essential knowledge for watershed managers because it teaches us that watersheds have structural and functional characteristics that can influence how human and natural communities coexist within them. The gross structure of a w ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.