CHAPTER 8. Estuarine Habitats of Narragansett Bay
... The productivity and variety of estuarine habitats foster an abundance and diversity of wildlife. Shorebirds, fish, crabs and lobsters, marine mammals, clams and other shellfish, marine worms, sea birds, and reptiles are just some of the animals that make their homes in and around estuaries. These ani ...
... The productivity and variety of estuarine habitats foster an abundance and diversity of wildlife. Shorebirds, fish, crabs and lobsters, marine mammals, clams and other shellfish, marine worms, sea birds, and reptiles are just some of the animals that make their homes in and around estuaries. These ani ...
An African grassland responds similarly to long
... Priority effects may play a large role in plant communities [1–4]. The relationships among functional traits, composition and diversity in short-term studies may not reflect vegetation processes in the long-term, because traits of the initial dominants may be unrelated to the long-term outcome of co ...
... Priority effects may play a large role in plant communities [1–4]. The relationships among functional traits, composition and diversity in short-term studies may not reflect vegetation processes in the long-term, because traits of the initial dominants may be unrelated to the long-term outcome of co ...
A snake in paradise: Disturbance of plant reproduction following
... et al., 2003). The most heavily affected species are small birds, small mammals, and medium-sized lizards (Rodda et al., 1999). Most native forest bird species have disappeared (Savidge, 1987; Wiles et al., 2003). Six out of 10–12 native lizard species have been extirpated, and only three species we ...
... et al., 2003). The most heavily affected species are small birds, small mammals, and medium-sized lizards (Rodda et al., 1999). Most native forest bird species have disappeared (Savidge, 1987; Wiles et al., 2003). Six out of 10–12 native lizard species have been extirpated, and only three species we ...
IDENTIFICATION OF IMPORTANT HABITATS IN THE LOWER
... We also required that sufficient data be available to insure that habitat maps could be produced and satisfy scrutiny of technical reviewers. Some species of high local interest, such as harbor seal, various marine fishes and American lobster were not selected either because they were not on the GOM ...
... We also required that sufficient data be available to insure that habitat maps could be produced and satisfy scrutiny of technical reviewers. Some species of high local interest, such as harbor seal, various marine fishes and American lobster were not selected either because they were not on the GOM ...
Mohua / yellowhead - Department of Conservation
... in beech forests with fertile soils where the birds can find plenty of food. It has disappeared from many large, relatively unchanged forests and is continuing to decline. Today, there are about 20 key mohua populations. They are divided into three groups: main divide valley populations (e.g. Landsb ...
... in beech forests with fertile soils where the birds can find plenty of food. It has disappeared from many large, relatively unchanged forests and is continuing to decline. Today, there are about 20 key mohua populations. They are divided into three groups: main divide valley populations (e.g. Landsb ...
The Concept of Organisms as Ecosystem Engineers Ten Years On
... species. In many cases, the work of environmental modification is shared across species within a system (e.g., diverse species of corals creating reefs), rather than being the product of one species. In other situations, the modification is done by numerically dominant or biomass-dominant species (e ...
... species. In many cases, the work of environmental modification is shared across species within a system (e.g., diverse species of corals creating reefs), rather than being the product of one species. In other situations, the modification is done by numerically dominant or biomass-dominant species (e ...
Minimizing Avian Predation Through Habitat Management
... timing, size and frequency of burns can be important as they relate to the susceptibility of quail to avian predators. In general: 1) burn in late winter through early spring to minimize exposure of quail to avian predators; 2) burn small blocks (10 acres to 50 acres – smaller is better) of habitat ...
... timing, size and frequency of burns can be important as they relate to the susceptibility of quail to avian predators. In general: 1) burn in late winter through early spring to minimize exposure of quail to avian predators; 2) burn small blocks (10 acres to 50 acres – smaller is better) of habitat ...
The Concept of Organisms as Ecosystem Engineers Ten Years On
... species. In many cases, the work of environmental modification is shared across species within a system (e.g., diverse species of corals creating reefs), rather than being the product of one species. In other situations, the modification is done by numerically dominant or biomass-dominant species (e ...
... species. In many cases, the work of environmental modification is shared across species within a system (e.g., diverse species of corals creating reefs), rather than being the product of one species. In other situations, the modification is done by numerically dominant or biomass-dominant species (e ...
E-news Spring 2015 - Butterfly Conservation
... true that the 35 data-points were herb-rich so perhaps the specific species involved does not matter: the evidence from this survey and others is that the presence of nectar plants is important. Ten of the 52 Forester I saw were nectaring which shows that Forester need to nectar which supports the v ...
... true that the 35 data-points were herb-rich so perhaps the specific species involved does not matter: the evidence from this survey and others is that the presence of nectar plants is important. Ten of the 52 Forester I saw were nectaring which shows that Forester need to nectar which supports the v ...
effects of temperature on the size of aquatic ectotherms
... Quality of data is taken into account in the analysis of exceptions to the general rule in the present paper. The review focused on studies of developmental stages near to reproductive maturity. In unicells, however, size at initiation of fission was only available from one study (Adolph, 1929). The ...
... Quality of data is taken into account in the analysis of exceptions to the general rule in the present paper. The review focused on studies of developmental stages near to reproductive maturity. In unicells, however, size at initiation of fission was only available from one study (Adolph, 1929). The ...
Preview Sample 2
... agent stops the person in front of you and confiscates the fruit basket this person is bringing home. Being the knowledgeable person you are, you calmly explain to your enraged fellow traveler that the reason for the detainment is that the fruit basket may be A) carrying endangered fruit. B) carryin ...
... agent stops the person in front of you and confiscates the fruit basket this person is bringing home. Being the knowledgeable person you are, you calmly explain to your enraged fellow traveler that the reason for the detainment is that the fruit basket may be A) carrying endangered fruit. B) carryin ...
D 56. Shachak et al. 2008. Woody sp.as landscape modulators
... woody plants can be considered primary landscape modulators. By creating biomass patches in about 40% of terrestrial ecosystems (House et al. 2003), woody plants have significant environmental impacts (Perry 1998), changing the distribution of resources in space and time and consequently the distrib ...
... woody plants can be considered primary landscape modulators. By creating biomass patches in about 40% of terrestrial ecosystems (House et al. 2003), woody plants have significant environmental impacts (Perry 1998), changing the distribution of resources in space and time and consequently the distrib ...
Niche theory and guilds
... Ecological niches can thus be defined in terms of: -response functions: how species are distributed on environmental gradients with respect to limitation and optimal performance (a physiological view, prevalent among plant ecologists), i.e., a species’ response to the environment (Grinnell, Elton) ...
... Ecological niches can thus be defined in terms of: -response functions: how species are distributed on environmental gradients with respect to limitation and optimal performance (a physiological view, prevalent among plant ecologists), i.e., a species’ response to the environment (Grinnell, Elton) ...
Progress toward understanding the ecological impacts of nonnative
... From a societal perspective, impacts are often measured in terms of economic costs and benefits, but such evaluations are strongly dependent on stakeholder perceptions (Garcı́a-Llorente et al. 2008, Pyšek and Richardson 2010) and may fail to capture the broad range of environmental effects caused by ...
... From a societal perspective, impacts are often measured in terms of economic costs and benefits, but such evaluations are strongly dependent on stakeholder perceptions (Garcı́a-Llorente et al. 2008, Pyšek and Richardson 2010) and may fail to capture the broad range of environmental effects caused by ...
Parallel shifts in ecology and natural selection in an island lizard
... Natural selection, non-manipulated island Initial lizard captures took place each spring from late May to early June. Each year we attempted to capture all male lizards on our natural study site. Lizards were sexed (males have enlarged post-anal scales), weighed (nearest 0.1 g) and measured snout-ve ...
... Natural selection, non-manipulated island Initial lizard captures took place each spring from late May to early June. Each year we attempted to capture all male lizards on our natural study site. Lizards were sexed (males have enlarged post-anal scales), weighed (nearest 0.1 g) and measured snout-ve ...
Document
... 300–350 animals in 1984 and have declined drastically since then. Much of the decline was due to distinct “episodes” of high mortality at particular colonies (Bryant 2000). Per-capita birth rates have remained stable but death rates have increased. The spatial and temporal pattern of “crashes” is co ...
... 300–350 animals in 1984 and have declined drastically since then. Much of the decline was due to distinct “episodes” of high mortality at particular colonies (Bryant 2000). Per-capita birth rates have remained stable but death rates have increased. The spatial and temporal pattern of “crashes” is co ...
Coal Mining and Wildlife in the Eastern United States
... mining, contour mining, area mining, or mountaintop removal mining with valley fill) has a significant impact on terrestrial and aquatic ecosystems which can be felt for decades. Given the difficulty in extracting coal from geologic strata that are generally not readily accessible from the surface, ...
... mining, contour mining, area mining, or mountaintop removal mining with valley fill) has a significant impact on terrestrial and aquatic ecosystems which can be felt for decades. Given the difficulty in extracting coal from geologic strata that are generally not readily accessible from the surface, ...
Functional redundancy in ecology and conservation
... proposed the niche as a conceptual tool for quantifying the similarity between species, with the habitat space occupied by an organism defined by an n-dimensional hypervolume where different axes are environmental factors such as temperature or resources. The Hutchinsonian niche separates species ba ...
... proposed the niche as a conceptual tool for quantifying the similarity between species, with the habitat space occupied by an organism defined by an n-dimensional hypervolume where different axes are environmental factors such as temperature or resources. The Hutchinsonian niche separates species ba ...
Biodiversity loss and its impact on humanity
... international programme dedicated to biodiversity science, produced a global research agenda6. By the mid-1990s, BEF studies had manipulated the species richness of plants in laboratory and field experiments and suggested that ecosystem functions, like biomass production and nutrient cycling, respon ...
... international programme dedicated to biodiversity science, produced a global research agenda6. By the mid-1990s, BEF studies had manipulated the species richness of plants in laboratory and field experiments and suggested that ecosystem functions, like biomass production and nutrient cycling, respon ...
Effects of Rattus spp. Control Measures and Nesting Substrate on
... influencing nest depredation by black and Polynesian rats. The first half of the study examined the effects of rat control on nest depredation within portions of the Hanawi Natural Area Reserve. Rat density monitoring indicated control efforts had significantly reduced black rat captures in treatmen ...
... influencing nest depredation by black and Polynesian rats. The first half of the study examined the effects of rat control on nest depredation within portions of the Hanawi Natural Area Reserve. Rat density monitoring indicated control efforts had significantly reduced black rat captures in treatmen ...
Scatter-and clump-dispersal and seedling demography
... still leave seeds in dense concentrations. Rodents sometimes mine seeds from dung piles (e.g. Janzen 1982b, 1986), but this probably represents seed predation rather than seed dispersal. The key feature of clump-dispersal for plant demography is that virtually all seeds, both dispersed and undispers ...
... still leave seeds in dense concentrations. Rodents sometimes mine seeds from dung piles (e.g. Janzen 1982b, 1986), but this probably represents seed predation rather than seed dispersal. The key feature of clump-dispersal for plant demography is that virtually all seeds, both dispersed and undispers ...
Legume species identity and soil nitrogen supply elevated atmospheric [CO
... is often between −1 and −2‰ (Shearer & Kohl, 1991). This depletion is attributed to discrimination against the heavier isotope during N fixation and transfer to the plant. Therefore, an additional uncertainty associated with all studies that employ this method is the extent to which 15N is being dis ...
... is often between −1 and −2‰ (Shearer & Kohl, 1991). This depletion is attributed to discrimination against the heavier isotope during N fixation and transfer to the plant. Therefore, an additional uncertainty associated with all studies that employ this method is the extent to which 15N is being dis ...
Management of Marsh-Upland Transitional Habitats
... On the other hand, the focus of site specific efforts may be to provide empirical data on actual ecological process that form transitional habitats, and the ecological functions a given transition is (or is not) providing. By utilizing mapping efforts at both scales, managers are provided measures o ...
... On the other hand, the focus of site specific efforts may be to provide empirical data on actual ecological process that form transitional habitats, and the ecological functions a given transition is (or is not) providing. By utilizing mapping efforts at both scales, managers are provided measures o ...
Pyrodiversity vs Biodiversity
... and the Australian flora and fauna remains limited. Such understanding is critical because inappropriate fire regimes – such as burning too little or too often – have been implicated in the decline and extinction of a range of native species. A large team of scientists and volunteers have set out to r ...
... and the Australian flora and fauna remains limited. Such understanding is critical because inappropriate fire regimes – such as burning too little or too often – have been implicated in the decline and extinction of a range of native species. A large team of scientists and volunteers have set out to r ...
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.