NUTRIENT LIMITATION IN THE SEA: DYNAMICS, IDENTIFICATION
... for ammonia uptake by Chlorella sp. The data of Harvey ( 1963) for the uptake of phosphate by Phueoductylum tricornutum, when replotted ( Fig. 4 ) , also show Michaelis-Menton kinetics. Although the data are scanty at present, the preliminary assumption that the nutrient uptake behavior of algae is ...
... for ammonia uptake by Chlorella sp. The data of Harvey ( 1963) for the uptake of phosphate by Phueoductylum tricornutum, when replotted ( Fig. 4 ) , also show Michaelis-Menton kinetics. Although the data are scanty at present, the preliminary assumption that the nutrient uptake behavior of algae is ...
Not seeing the ocean for the islands
... regime will affect the dynamics of species and the resulting biodiversity (e.g. Malanson, 1984). The degree to which area-related changes occur is a function of not only the total amount of forest loss, but also (1) the size of remaining forest remnants, and (2) where in a landscape the destruction ...
... regime will affect the dynamics of species and the resulting biodiversity (e.g. Malanson, 1984). The degree to which area-related changes occur is a function of not only the total amount of forest loss, but also (1) the size of remaining forest remnants, and (2) where in a landscape the destruction ...
Slide 1: NATURAL HISTORY of WHITE
... Deer reproductive potential causes populations to exceed BCC, unless productivity is balanced by mortality. CULTURAL CARRYING CAPACITY (CCC) Defined as the maximum number of deer that can coexist compatibly with local human population. Based on land-use practices and deer populations. Is a f ...
... Deer reproductive potential causes populations to exceed BCC, unless productivity is balanced by mortality. CULTURAL CARRYING CAPACITY (CCC) Defined as the maximum number of deer that can coexist compatibly with local human population. Based on land-use practices and deer populations. Is a f ...
Evolutionary analysis of vision genes identifies potential
... shown that variations in specific allelic combination among some of the five sites of ...
... shown that variations in specific allelic combination among some of the five sites of ...
Genetic diversity
... species in the world or in a particular region - Richness = the number of species - Evenness or relative abundance = extent to which numbers of individuals of different species are equal or skewed - Speciation generates new species and adds to species richness - Extinction reduces species richness ...
... species in the world or in a particular region - Richness = the number of species - Evenness or relative abundance = extent to which numbers of individuals of different species are equal or skewed - Speciation generates new species and adds to species richness - Extinction reduces species richness ...
The University of Chicago Press The American Society of Naturalists
... Holt et al. 1994; Leibold 1996; Molofsky et al. 1999; Chesson 2000; Rees et al. 2001; Bever 2003; Chase and Leibold 2003; Rudolf and Antonovics 2005; Chesson and Kuang 2008). In contrast, as theoretically developed later, the emergence in one realm of novel species that had traits that fell on an in ...
... Holt et al. 1994; Leibold 1996; Molofsky et al. 1999; Chesson 2000; Rees et al. 2001; Bever 2003; Chase and Leibold 2003; Rudolf and Antonovics 2005; Chesson and Kuang 2008). In contrast, as theoretically developed later, the emergence in one realm of novel species that had traits that fell on an in ...
DEFYING EXTINCTION - Global Environment Facility
... iodiversity is more than just the number of animal and plant species in the world. Biodiversity is who we are, what we eat, where we live, what we do and, most importantly, how all of these things come together to form a whole. The preoccupations of our daily lives often blind us to the dangers thre ...
... iodiversity is more than just the number of animal and plant species in the world. Biodiversity is who we are, what we eat, where we live, what we do and, most importantly, how all of these things come together to form a whole. The preoccupations of our daily lives often blind us to the dangers thre ...
Network Role Analysis in the Study of Food Webs
... Network analysis has been used to develop ecosystem theory, notably in the area of ecosystem maturity. The theory of ecosystem “ascendancy” has been articulated by Ulanowicz (1997), which states that as an ecosystem network develops through time in a stable environment, it becomes more hierarchical ...
... Network analysis has been used to develop ecosystem theory, notably in the area of ecosystem maturity. The theory of ecosystem “ascendancy” has been articulated by Ulanowicz (1997), which states that as an ecosystem network develops through time in a stable environment, it becomes more hierarchical ...
Chapter 3: Maryland`s Wildlife Resources and Species of Greatest
... opportunity to identify species of wildlife in greatest need of conservation, as well as the key habitats that support them. Rather than focusing on a certain group or category of wildlife, this effort evaluated the status of over 2,000 known animal species and considered the countless thousands mor ...
... opportunity to identify species of wildlife in greatest need of conservation, as well as the key habitats that support them. Rather than focusing on a certain group or category of wildlife, this effort evaluated the status of over 2,000 known animal species and considered the countless thousands mor ...
Resource partitioning between ungulate populations in arid
... by their physical and functional characteristics: herbaceous (vegetation consisting entirely of nonwoody biomass), shrub (vegetation with an average height of <1 m, consisting of both woody and nonwoody biomass), and tree (vegetation consisting of both woody and nonwoody biomass, with an average hei ...
... by their physical and functional characteristics: herbaceous (vegetation consisting entirely of nonwoody biomass), shrub (vegetation with an average height of <1 m, consisting of both woody and nonwoody biomass), and tree (vegetation consisting of both woody and nonwoody biomass, with an average hei ...
Biodiversity and Species Extinctions in Model Food Webs Charlotte Borrvall
... and largely unsettled issue (see McCann [2000]). More diverse communities (here higher number of species per functional group) could be thought to be more stable than less diverse communities because the loss of a species could be compensated for by functionally equivalent species. Our results show ...
... and largely unsettled issue (see McCann [2000]). More diverse communities (here higher number of species per functional group) could be thought to be more stable than less diverse communities because the loss of a species could be compensated for by functionally equivalent species. Our results show ...
Flora Expert Panel Report - Department of Environment and
... encompasses approximately 211,000km of low-lying country and offshore islands of north-west Queensland. Major river systems dissect the broad alluvial plains – the Nicholson, Gregory and Leichhardt drain from the North West Highlands; the Cloncurry, Flinders and Norman from the Mitchell Grass Downs; ...
... encompasses approximately 211,000km of low-lying country and offshore islands of north-west Queensland. Major river systems dissect the broad alluvial plains – the Nicholson, Gregory and Leichhardt drain from the North West Highlands; the Cloncurry, Flinders and Norman from the Mitchell Grass Downs; ...
What does ecological modelling model? A proposed classification of
... species can maintain a viable population and persist along time. When a species does not occupy its entire fundamental niche due to niche exclusion by competition, Hutchinson used the term “realized niche”. However, the species can be absent from suitable habitats for historical reasons or due to li ...
... species can maintain a viable population and persist along time. When a species does not occupy its entire fundamental niche due to niche exclusion by competition, Hutchinson used the term “realized niche”. However, the species can be absent from suitable habitats for historical reasons or due to li ...
Rethinking Adaptation the niche
... analyses using population genetics models have revealed that feedback from niche construction can make a considerable difference to the evolutionary process and can generate unusual evolutionary dynamics (Laland, Odling-Smee, and Feldman 1996, 1999, 2001). Mathematical models of maternal inheritance ...
... analyses using population genetics models have revealed that feedback from niche construction can make a considerable difference to the evolutionary process and can generate unusual evolutionary dynamics (Laland, Odling-Smee, and Feldman 1996, 1999, 2001). Mathematical models of maternal inheritance ...
Disruption of ant-seed dispersal mutualisms by the invasive Asian
... A. canadense and H. arifolia, which produce similar size and weight seeds (Canner 2010). We haphazardly selected 29 invaded plots where P. chinensis was present and paired these with 29 intact plots (where P. chinensis was absent). Each plot was 10 m 9 10 m. Invaded plots were in areas in which we o ...
... A. canadense and H. arifolia, which produce similar size and weight seeds (Canner 2010). We haphazardly selected 29 invaded plots where P. chinensis was present and paired these with 29 intact plots (where P. chinensis was absent). Each plot was 10 m 9 10 m. Invaded plots were in areas in which we o ...
Population structure of Scotch broom (Cytisus scoparius) and its
... encroaching the grasslands. C. scoparius (Scotch broom or broom) appears to be dominating vast areas of the grasslands in the Nilgiris9 (M. P. Srinivasan, pers. obs.). Though concern over expansion of Scotch broom has initiated attempts to test the efficacy of various chemical and mechanical methods ...
... encroaching the grasslands. C. scoparius (Scotch broom or broom) appears to be dominating vast areas of the grasslands in the Nilgiris9 (M. P. Srinivasan, pers. obs.). Though concern over expansion of Scotch broom has initiated attempts to test the efficacy of various chemical and mechanical methods ...
Trait-mediated assembly processes predict successional changes in
... uantifying the relative importance of mechanisms that drive community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita po ...
... uantifying the relative importance of mechanisms that drive community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita po ...
Effects of trophic similarity on community composition
... ric structure in mutualistic and trophic networks (Bascompte et al. 2006; Thebault & Fontaine 2008; Joppa et al. 2009). We use ‘predators’ and ‘prey’ throughout because these familiar terms reasonably describe the feeding relationships we analyse in the pelagic area of lakes where consumers typical ...
... ric structure in mutualistic and trophic networks (Bascompte et al. 2006; Thebault & Fontaine 2008; Joppa et al. 2009). We use ‘predators’ and ‘prey’ throughout because these familiar terms reasonably describe the feeding relationships we analyse in the pelagic area of lakes where consumers typical ...
Predation by ladybird beetles (coccinellids) on immature stages of
... food (i.e. psyllids) has been used to mass-rear other species of ladybirds to prevent migration on release (Hoffmann and Frodsham 1993). Diets for the mass production of both Cleobora mellyi and Harmonia conformis have been developed in New Zealand (Bain et al. 1984). Mass production of coccinellid ...
... food (i.e. psyllids) has been used to mass-rear other species of ladybirds to prevent migration on release (Hoffmann and Frodsham 1993). Diets for the mass production of both Cleobora mellyi and Harmonia conformis have been developed in New Zealand (Bain et al. 1984). Mass production of coccinellid ...
Biodiversity effects on ecosystem functioning: emerging issues and
... an unreplicated, and clearly impractical, 14 827 combinations. To circumvent this problem, previous experiments have replicated diversity levels either by (1) generating multiple combinations within each diversity level from a common species pool or (2) by selecting one particular replicated combina ...
... an unreplicated, and clearly impractical, 14 827 combinations. To circumvent this problem, previous experiments have replicated diversity levels either by (1) generating multiple combinations within each diversity level from a common species pool or (2) by selecting one particular replicated combina ...
Spatial dynamics of mutualistic interactions
... 1. I present a model of mutualistic interactions in a patchy landscape. The interaction is between two species that differ in their mobility. The landscape is spatially structured, with several localities interconnected by dispersal of the mobile mutualist. 2. Within a given locality, an Allee effec ...
... 1. I present a model of mutualistic interactions in a patchy landscape. The interaction is between two species that differ in their mobility. The landscape is spatially structured, with several localities interconnected by dispersal of the mobile mutualist. 2. Within a given locality, an Allee effec ...
Life history traits contribute to decline of critically endangered lizards
... captured at a new tor on >2 occasions; ‘possible’ for ≤2 captures at a new tor, or ‘temporary’ where the vast majority of captures of an individual were from one tor, but infrequent captures (usually 1) were made at a second tor, followed by captures back at the original tor. Net loss per year (over ...
... captured at a new tor on >2 occasions; ‘possible’ for ≤2 captures at a new tor, or ‘temporary’ where the vast majority of captures of an individual were from one tor, but infrequent captures (usually 1) were made at a second tor, followed by captures back at the original tor. Net loss per year (over ...
Scaling environmental change through the community
... Species invasion, loss, and turnover all necessitate this scaling through community processes, but predicting how such changes may influence ecosystem function is notoriously difficult. We suggest that community-level dynamics can be incorporated into scaling predictions using a trait-based response ...
... Species invasion, loss, and turnover all necessitate this scaling through community processes, but predicting how such changes may influence ecosystem function is notoriously difficult. We suggest that community-level dynamics can be incorporated into scaling predictions using a trait-based response ...
Genetic diversity
... species in the world or in a particular region - Richness = the number of species - Evenness or relative abundance = extent to which numbers of individuals of different species are equal or skewed - Speciation generates new species and adds to species richness - Extinction reduces species richness ...
... species in the world or in a particular region - Richness = the number of species - Evenness or relative abundance = extent to which numbers of individuals of different species are equal or skewed - Speciation generates new species and adds to species richness - Extinction reduces species richness ...