"Ecosystem Engineers". - Cary Institute of Ecosystem Studies
... physical structure within the environment. These structural changes then affect abiotic resources and abiotic environmental conditions that may be critical for other organisms and even themselves (Figure 1). Such organisms were called physical ecosystem engineers by Jones et al. (1994, 1997). They or ...
... physical structure within the environment. These structural changes then affect abiotic resources and abiotic environmental conditions that may be critical for other organisms and even themselves (Figure 1). Such organisms were called physical ecosystem engineers by Jones et al. (1994, 1997). They or ...
Endemic predators, invasive prey and native diversity
... Based on skin defences and potential predefined feeding preference of many toads, there may be a general potential for bufonids as biocontrol agents; this is an area in need of further research. Intuitively, toads can only provide useful ecosystem services if they are abundant; yet (endemic) amphibi ...
... Based on skin defences and potential predefined feeding preference of many toads, there may be a general potential for bufonids as biocontrol agents; this is an area in need of further research. Intuitively, toads can only provide useful ecosystem services if they are abundant; yet (endemic) amphibi ...
Stable coexistence of ecologically identical species: conspecific
... competition, because more individuals experience high level of competition in high-density areas than low level of competition in low-density areas. If the spatial distributions of competing species are not completely correlated, the level of intraspecific competition may thereby become greater than ...
... competition, because more individuals experience high level of competition in high-density areas than low level of competition in low-density areas. If the spatial distributions of competing species are not completely correlated, the level of intraspecific competition may thereby become greater than ...
Knowing Your Warblers
... As has often been pointed out...birds may emigrate or disperse from the most suitable areas where reproduction is successful into marginal habitats. Consider such a species which will be called A. Let B be a species that lives only in the area that is marginal for species A. Now, even if in an unlim ...
... As has often been pointed out...birds may emigrate or disperse from the most suitable areas where reproduction is successful into marginal habitats. Consider such a species which will be called A. Let B be a species that lives only in the area that is marginal for species A. Now, even if in an unlim ...
Appendix F - Wetlands
... component to the conservation strategy. These can include Conservation Restrictions (CRs) and Agricultural Preservation Restrictions (APRs). Another method of protecting large blocks of land is through the regulatory process by allowing the building of small or clustered roadside developments in con ...
... component to the conservation strategy. These can include Conservation Restrictions (CRs) and Agricultural Preservation Restrictions (APRs). Another method of protecting large blocks of land is through the regulatory process by allowing the building of small or clustered roadside developments in con ...
Accelerating Trophic-level Dysfunction in Kelp Forest Ecosystems of
... conspicuous, or simply because they have the greatest food and commercial value. If fishing pressure reduces the population density of the apex predators to the point where they become rare or economically unprofitable, the fishery target will shift to lower trophic levels. Fishing of lower trophic ...
... conspicuous, or simply because they have the greatest food and commercial value. If fishing pressure reduces the population density of the apex predators to the point where they become rare or economically unprofitable, the fishery target will shift to lower trophic levels. Fishing of lower trophic ...
Plants and insects in early oldfield succession
... Plant couer and species richness Differences in temporal patterns of change in cover at the two sites was evident in the first season (Table 1). I n May of the first year at the Iowa site, the cover was only 10% and reflected the fact that plants were exclusively seedlings, most of which were still ...
... Plant couer and species richness Differences in temporal patterns of change in cover at the two sites was evident in the first season (Table 1). I n May of the first year at the Iowa site, the cover was only 10% and reflected the fact that plants were exclusively seedlings, most of which were still ...
An Attack on our Landscapes by Invasive Exotic Plant Species
... MIEPSTF reviews, discusses and recommends educational and regulatory action related to managing known and potential non-native invasive plant species that negatively impact natural communities and built landscape in Missouri and elsewhere in the lower Midwest. ...
... MIEPSTF reviews, discusses and recommends educational and regulatory action related to managing known and potential non-native invasive plant species that negatively impact natural communities and built landscape in Missouri and elsewhere in the lower Midwest. ...
Genetic variation and community change selection, evolution, and
... School of Plant Science, University of Tasmania, Private Bag 55, Hobart, Tasmania 7001, Australia ...
... School of Plant Science, University of Tasmania, Private Bag 55, Hobart, Tasmania 7001, Australia ...
Neutral theory and community ecology
... consistent findings of these studies is that in a sample, a small fraction of the species represent most of the organisms, while many species are represented by very few individuals, quite often singletons. In this section, I shall mostly focus on patterns of local species abundance (Whittaker 1972) ...
... consistent findings of these studies is that in a sample, a small fraction of the species represent most of the organisms, while many species are represented by very few individuals, quite often singletons. In this section, I shall mostly focus on patterns of local species abundance (Whittaker 1972) ...
Restoring Large Prairies in the Chicago Region
... may need to be much larger than those in open areas to benefit grassland birds. If a large, unfragmented grassland dominated by Eurasian pasture grasses (such as various brome, fescue and bluegrass species) is occupied by grassland birds, the value of converting it into a prairie restoration should ...
... may need to be much larger than those in open areas to benefit grassland birds. If a large, unfragmented grassland dominated by Eurasian pasture grasses (such as various brome, fescue and bluegrass species) is occupied by grassland birds, the value of converting it into a prairie restoration should ...
Translocation strategies for multiple species depend on interspecific
... (Bode and Wintle 2010), and the increasing number of threatened species encourages managers to move competing species into the same reserves. In New Zealand, three threatened reptile species, Sphenodon punctatus, Hoplodactylus duvaucelii, and Oligosoma smithi, were reintroduced to Tiritiri Matangi I ...
... (Bode and Wintle 2010), and the increasing number of threatened species encourages managers to move competing species into the same reserves. In New Zealand, three threatened reptile species, Sphenodon punctatus, Hoplodactylus duvaucelii, and Oligosoma smithi, were reintroduced to Tiritiri Matangi I ...
Genetic variation and community change selection, evolution, and
... School of Plant Science, University of Tasmania, Private Bag 55, Hobart, Tasmania 7001, Australia ...
... School of Plant Science, University of Tasmania, Private Bag 55, Hobart, Tasmania 7001, Australia ...
Riparian Areas: Providing Landscape Habitat Diversity
... adjacent floodplain or upland habitats are also considered, riparian areas can link several otherwise isolated forest patches containing different wildlife habitats. In this way, riparian corridors become natural routes for various travelling or migrating animal species. If their original habitat is ...
... adjacent floodplain or upland habitats are also considered, riparian areas can link several otherwise isolated forest patches containing different wildlife habitats. In this way, riparian corridors become natural routes for various travelling or migrating animal species. If their original habitat is ...
Approaches to ecosystem management
... Strategic management is explicit. Strategic approaches define what an organisation, group or individual intends to do, how and why those actions were selected and whether or not they are accomplished. Being explicit means everyone knows what the group is doing, it exposes hidden agendas (because if ...
... Strategic management is explicit. Strategic approaches define what an organisation, group or individual intends to do, how and why those actions were selected and whether or not they are accomplished. Being explicit means everyone knows what the group is doing, it exposes hidden agendas (because if ...
Fluctuating resources in plant communities: a general theory of invasibility FORUM
... susceptible to invasion whenever there is an increase in the amount of unused resources. Our theory rests on the simple assumption that an invading species must have access to available resources, e.g. light, nutrients, and water, and that a species will enjoy greater success in invading a community ...
... susceptible to invasion whenever there is an increase in the amount of unused resources. Our theory rests on the simple assumption that an invading species must have access to available resources, e.g. light, nutrients, and water, and that a species will enjoy greater success in invading a community ...
Mutualistic Mimicry and Filtering by Altitude Shape the Structure of
... 2000). Müllerian mimicry in butterflies (Müller 1879) is a compelling example of positive, mutualistic interactions (Rowland et al. 2007), where different species protected by chemical defenses converge in warning color patterns (comimetic species; fig. 1C) and share the density-dependent cost of ...
... 2000). Müllerian mimicry in butterflies (Müller 1879) is a compelling example of positive, mutualistic interactions (Rowland et al. 2007), where different species protected by chemical defenses converge in warning color patterns (comimetic species; fig. 1C) and share the density-dependent cost of ...
A generalized model for population dynamics where interactions
... analysis (LSA). Thus, we will be able to predict how they work and what dynamics appear among the populations. We have three simultaneous systems in their evolution, but independent from each other. Consequently, our LSA will be formed by three parts, the one that corresponds to the evolution of pop ...
... analysis (LSA). Thus, we will be able to predict how they work and what dynamics appear among the populations. We have three simultaneous systems in their evolution, but independent from each other. Consequently, our LSA will be formed by three parts, the one that corresponds to the evolution of pop ...
AG-WL-03.453-06.2_Population_NumbersC
... 1. Factors influencing the birth and death rate of a population depends on the density or the number of individuals in a given area. a. Predation: some organisms must hunt and kill others for nutritional needs. b. Competition among animals intensifies struggles for cover, water, food, and breeding s ...
... 1. Factors influencing the birth and death rate of a population depends on the density or the number of individuals in a given area. a. Predation: some organisms must hunt and kill others for nutritional needs. b. Competition among animals intensifies struggles for cover, water, food, and breeding s ...
3. Existing Authorities and Programs
... The Sound also supports heavy commercial shipping traffic. Some vessels, such as those that transport bananas from Panama in Central America, travel slowly through coastal waters and eventually dock in Bridgeport. Other ships include oil tankers, US Navy submarines, and ???. These vessels may serve ...
... The Sound also supports heavy commercial shipping traffic. Some vessels, such as those that transport bananas from Panama in Central America, travel slowly through coastal waters and eventually dock in Bridgeport. Other ships include oil tankers, US Navy submarines, and ???. These vessels may serve ...
Trade-offs in community ecology: linking spatial scales and species
... When there is temporal variation in environmental conditions, and when species trade-off in their ability to thrive under those different environmental conditions, many species can persist on few resources because of their being differentially favoured in different temporal windows (Chesson & Warner ...
... When there is temporal variation in environmental conditions, and when species trade-off in their ability to thrive under those different environmental conditions, many species can persist on few resources because of their being differentially favoured in different temporal windows (Chesson & Warner ...
Development of a subtidal epifaunal community at the island of
... mum (73 individuals 100 cm-"~) on the one-month panel and B. schlosseri was still frequently settling (36 single "individuals"). On the series-A panel it already covered ca. 15 % of the total area (692 ingestion openings). The stolons of L. geniculata reached their widest expansion at the same time ...
... mum (73 individuals 100 cm-"~) on the one-month panel and B. schlosseri was still frequently settling (36 single "individuals"). On the series-A panel it already covered ca. 15 % of the total area (692 ingestion openings). The stolons of L. geniculata reached their widest expansion at the same time ...
Effects of disturbance by Siberian marmots (Marmota sibirica) on
... of species diversity in communities (Huston 1994; Tilman 1999; Moreno-Rueda and Pizarro 2007). Most papers have reported a positive relationship between habitat heterogeneity and biodiversity (Wright et al. 1993; Huston 1994; Williams et al. 2002; Tews et al. 2004); for example, because more heterog ...
... of species diversity in communities (Huston 1994; Tilman 1999; Moreno-Rueda and Pizarro 2007). Most papers have reported a positive relationship between habitat heterogeneity and biodiversity (Wright et al. 1993; Huston 1994; Williams et al. 2002; Tews et al. 2004); for example, because more heterog ...
Overview of Ecological Responses to the Eruption of Mount St. Helens
... a wealth of information and insight on a broad spectrum of ecological and physical responses to disturbance. The eruption and its effects on ecological and geophysical systems have many dimensions: a complex eruption affected an intricate landscape containing forests, meadows, lakes, and streams pop ...
... a wealth of information and insight on a broad spectrum of ecological and physical responses to disturbance. The eruption and its effects on ecological and geophysical systems have many dimensions: a complex eruption affected an intricate landscape containing forests, meadows, lakes, and streams pop ...
Herbivores Promote Habitat Specialization by Trees in Amazonian
... within Protium sensu lato (38), therefore we are considering Tetragastris panamensis as a Protium clay specialist species. Soil type (origin) was determined by extensive tree and seedling inventories that we conducted in more than 25 sites throughout the 57,600-ha Allpahuayo-Mishana Reserve. Our des ...
... within Protium sensu lato (38), therefore we are considering Tetragastris panamensis as a Protium clay specialist species. Soil type (origin) was determined by extensive tree and seedling inventories that we conducted in more than 25 sites throughout the 57,600-ha Allpahuayo-Mishana Reserve. Our des ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.