Lecture On The”Last Nigeria Vulture: The Consequence For Human
... critically endangered list while another three (3) are endangered. The threat facing Vultures are diverse and challenging. Africa continues to have the highest global rate of primary forest loss (FAO, 2010). Therefore, habitat loss degradation poses some levels of threat to Vultures. About 80% of or ...
... critically endangered list while another three (3) are endangered. The threat facing Vultures are diverse and challenging. Africa continues to have the highest global rate of primary forest loss (FAO, 2010). Therefore, habitat loss degradation poses some levels of threat to Vultures. About 80% of or ...
A conceptual framework for marine biodiversity and ecosystem
... If we consider the history of ecosystems, we might ask what were the patterns and processes allowing the functioning of the first ecosystem. If life is monophyletic, as suggested by the common genetic language spoken by all living beings, in the beginning there was just one species (in fact, from a ...
... If we consider the history of ecosystems, we might ask what were the patterns and processes allowing the functioning of the first ecosystem. If life is monophyletic, as suggested by the common genetic language spoken by all living beings, in the beginning there was just one species (in fact, from a ...
Macroecology: more than the division of food and
... use of what they termed a ‘macroecological approach’ to address such questions. Their first papers (Brown and Maurer, 1987; 1989; Maurer and Brown, 1988) focused on the pattern identified by Hutchinson and MacArthur (1959), the unimodal distribution of the number of species of different sizes at the ...
... use of what they termed a ‘macroecological approach’ to address such questions. Their first papers (Brown and Maurer, 1987; 1989; Maurer and Brown, 1988) focused on the pattern identified by Hutchinson and MacArthur (1959), the unimodal distribution of the number of species of different sizes at the ...
New Zealand`s indigenous forests and shrublands
... as glaciers retreat. Hence at Franz Josef a series of forest landscapes have developed, from very recent advances (the Little Ice Age of the 1600s) through to terraces that were last under glaciers more than 100 000 years ago (e.g. Wardle et al. 2004). In this wet climate leaching of mineral nutrien ...
... as glaciers retreat. Hence at Franz Josef a series of forest landscapes have developed, from very recent advances (the Little Ice Age of the 1600s) through to terraces that were last under glaciers more than 100 000 years ago (e.g. Wardle et al. 2004). In this wet climate leaching of mineral nutrien ...
Selection criteria for suites of landscape species as a basis for site
... The first two measures, the proportions of habitat and jurisdictional types individuals use, were scored by tallying all the habitat or jurisdictional types (within the landscape) that an individual must use during its entire life cycle. The term ‘‘must’’ was included to distinguish a species requir ...
... The first two measures, the proportions of habitat and jurisdictional types individuals use, were scored by tallying all the habitat or jurisdictional types (within the landscape) that an individual must use during its entire life cycle. The term ‘‘must’’ was included to distinguish a species requir ...
Meta-ecosystems: a theoretical framework for a spatial ecosystem
... conservation of fragmented populations in human-dominated landscapes, which they address explicitly, and from their ability to deliver specific testable hypotheses. The metapopulation concept has its roots in island biogeography, but unlike the latter theory, it was until recently largely focused on ...
... conservation of fragmented populations in human-dominated landscapes, which they address explicitly, and from their ability to deliver specific testable hypotheses. The metapopulation concept has its roots in island biogeography, but unlike the latter theory, it was until recently largely focused on ...
Comparative studies of terrestrial vertebrates in urban areas
... Conservation and management questions are at the interface between questions raised by ecologists studying cities and urban residents. Management questions are shaped by the two sometimes conflicting goals for wildlife conservation in cities: to maintain regional biodiversity, and to provide opportu ...
... Conservation and management questions are at the interface between questions raised by ecologists studying cities and urban residents. Management questions are shaped by the two sometimes conflicting goals for wildlife conservation in cities: to maintain regional biodiversity, and to provide opportu ...
Distribution and Reproductive Characteristics of
... many other apparently introduced algae remain unknown (Doty 1961, Brostoff 1989). The most likely vector of transport is through ship fouling and/or ballast water because many of these nonindigenous algae were first collected in or around harbors and gradually dispersed to neighboring areas. However ...
... many other apparently introduced algae remain unknown (Doty 1961, Brostoff 1989). The most likely vector of transport is through ship fouling and/or ballast water because many of these nonindigenous algae were first collected in or around harbors and gradually dispersed to neighboring areas. However ...
Complete list of Research Projects, and abstracts
... driving their emergence. This project aims to use the UC Natural Reserve System to carry out a standardized sampling and surveillance effort applied at a larger geographical scale than has yet been undertaken in California. The goal of which is both to begin to characterize regional differences in t ...
... driving their emergence. This project aims to use the UC Natural Reserve System to carry out a standardized sampling and surveillance effort applied at a larger geographical scale than has yet been undertaken in California. The goal of which is both to begin to characterize regional differences in t ...
Holism and reductionism in biology and ecology Looijen
... to theories about populations or individual organisms. Also, the question may be put whether ecology as a whole can be reduced to some lower level biological theory, for which the modern theories of natural selection and population genetics are of course the most likely candidates. As mentioned, how ...
... to theories about populations or individual organisms. Also, the question may be put whether ecology as a whole can be reduced to some lower level biological theory, for which the modern theories of natural selection and population genetics are of course the most likely candidates. As mentioned, how ...
Cousin`s brochure
... Dragonflies and Moorhens. However, because Cousin is such a small island, and the boundaries between habitats are not rigid, many of the plants and animals can be found in several different habitats. Management of the habitats of Cousin has been minimal since the island was declared a nature reserve ...
... Dragonflies and Moorhens. However, because Cousin is such a small island, and the boundaries between habitats are not rigid, many of the plants and animals can be found in several different habitats. Management of the habitats of Cousin has been minimal since the island was declared a nature reserve ...
Selecting umbrella species for conservation
... calculated the Euclidean distance to non-ocean tidal waters, which included inlets, bays, and tidal ponds. We processed all geospatial data using ArcMap 10.2.2 (ESRI 2014). In addition to the landscape features described above, we measured differences among habitats with respect to management status ...
... calculated the Euclidean distance to non-ocean tidal waters, which included inlets, bays, and tidal ponds. We processed all geospatial data using ArcMap 10.2.2 (ESRI 2014). In addition to the landscape features described above, we measured differences among habitats with respect to management status ...
John Snow
... • Ecological and cross-sectional studies involve no followup of individuals, so are often grouped together • In addition, these studies depend on a full accounting or random cross-section of the population • This design is capable of measuring prevalences and open population incidence rates: Prevale ...
... • Ecological and cross-sectional studies involve no followup of individuals, so are often grouped together • In addition, these studies depend on a full accounting or random cross-section of the population • This design is capable of measuring prevalences and open population incidence rates: Prevale ...
Metallic Element Accumulation in Adirondack - SUNY-ESF
... Mushrooms have long been thought to sequester heavy metals and other elements from the soil. The ecological effects of high heavy metal content in mushrooms could be far-reaching, as mushrooms are at the base of the food chain for many insects and small animals and are also part of the human food ch ...
... Mushrooms have long been thought to sequester heavy metals and other elements from the soil. The ecological effects of high heavy metal content in mushrooms could be far-reaching, as mushrooms are at the base of the food chain for many insects and small animals and are also part of the human food ch ...
Ecological Consequences of Extinction
... Because of greater experimental tractability, a large proportion of assembly experiments have focused on grassland plants Although assembly experiments do not usually examine ex- or laboratory aquatic microbial systems, with less attention tinctions, they are briefly addressed here because they have ...
... Because of greater experimental tractability, a large proportion of assembly experiments have focused on grassland plants Although assembly experiments do not usually examine ex- or laboratory aquatic microbial systems, with less attention tinctions, they are briefly addressed here because they have ...
Can the invasive European rabbit (Oryctolagus
... supports the notion that engineering effects on species richness are regulated by system productivity. Irrespective of the species of engineer or the type of disturbance created, Wright and Jones (2004) showed that there was a significant relationship between the productivity of unmodified patches a ...
... supports the notion that engineering effects on species richness are regulated by system productivity. Irrespective of the species of engineer or the type of disturbance created, Wright and Jones (2004) showed that there was a significant relationship between the productivity of unmodified patches a ...
Microbial ecology of biological invasions
... Theoretical studies predict that invaders will occupy the same niche as the native species in the invaded ecosystem (Scheffer and Van Nes, 2006). However, meta-analyses show that invasive plant species have less pathogen and virus species than have similar native plant species (Mitchell and Power, 2 ...
... Theoretical studies predict that invaders will occupy the same niche as the native species in the invaded ecosystem (Scheffer and Van Nes, 2006). However, meta-analyses show that invasive plant species have less pathogen and virus species than have similar native plant species (Mitchell and Power, 2 ...
Annual Precipitation (mm) (average over Prairie Ecozone)
... • These models do not account for possible carbon fertilization effect: • rate of photosynthesis increases with ambient CO2 concentration. • stomatal conductance decreases, meaning improved water use efficiency. ...
... • These models do not account for possible carbon fertilization effect: • rate of photosynthesis increases with ambient CO2 concentration. • stomatal conductance decreases, meaning improved water use efficiency. ...
The Scale of Successional Models and Restoration Objectives
... (Cairns 1990), and in some cases these might be a particular composition, some functional process reestablished (like tidal flow in marshes), or comparison against a reference site. Intervention might require the reduction or removal of species or circumstances that might prevent site restoration, s ...
... (Cairns 1990), and in some cases these might be a particular composition, some functional process reestablished (like tidal flow in marshes), or comparison against a reference site. Intervention might require the reduction or removal of species or circumstances that might prevent site restoration, s ...
Species-Area Relationship for Stream Fishes
... and Panama to examine variation in species-area relationships within and between the respective fish faunas. For six of the seven steams studied, habitat volume was a better predictor of species richness than was habitat area, and number of individuals was a better predictor of species richness than ...
... and Panama to examine variation in species-area relationships within and between the respective fish faunas. For six of the seven steams studied, habitat volume was a better predictor of species richness than was habitat area, and number of individuals was a better predictor of species richness than ...
Non volant mammals of Dawesville-Binningup
... The 2009 survey consisted of repeated survey of twelve sites (Figure 2). These comprised five sites in the north of the study area in the Yalgorup National Park along White Hill Road, two in the middle of the study area along Preston Beach Road and a further five in the south of the area on privatel ...
... The 2009 survey consisted of repeated survey of twelve sites (Figure 2). These comprised five sites in the north of the study area in the Yalgorup National Park along White Hill Road, two in the middle of the study area along Preston Beach Road and a further five in the south of the area on privatel ...
How functional is functional? Ecological groupings in terrestrial
... Understanding causes and mechanisms of changes in community structure of plants and animals is a key challenge of ecology for predicting future patterns of occurrence, abundance and diversity under global change. The need to transfer knowledge gained from single species to a more generalized approac ...
... Understanding causes and mechanisms of changes in community structure of plants and animals is a key challenge of ecology for predicting future patterns of occurrence, abundance and diversity under global change. The need to transfer knowledge gained from single species to a more generalized approac ...
Nature conservation - Potsdam Institute for Climate Impact Research
... population is supplied by large industries and mainly monocultures. Technology becomes very important since a lot of species became extinct caused by loss of habitats and high pollution. Insects moved further away into protected areas and their population size decreased. Land is populated by grey sp ...
... population is supplied by large industries and mainly monocultures. Technology becomes very important since a lot of species became extinct caused by loss of habitats and high pollution. Insects moved further away into protected areas and their population size decreased. Land is populated by grey sp ...
cap 52 ecologia
... • A community is a group of populations of different species in an area • Community ecology deals with the whole array of interacting species in a community ...
... • A community is a group of populations of different species in an area • Community ecology deals with the whole array of interacting species in a community ...
Ecology
... “A migratory flight involves preparation. The initial stimulus for spring migration among birds wintering in European latitudes comes from the increase in day length past an initial threshold. Physiological changes encourage the deposition of fat, particularly beneath the skin (subcutaneous) and ins ...
... “A migratory flight involves preparation. The initial stimulus for spring migration among birds wintering in European latitudes comes from the increase in day length past an initial threshold. Physiological changes encourage the deposition of fat, particularly beneath the skin (subcutaneous) and ins ...
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.