Environmental variability and population dynamics: do European
... fowl community in the Guadalquivir Marshes, southwest Spain. The ...
... fowl community in the Guadalquivir Marshes, southwest Spain. The ...
Sex and the Single Guppy (taken from http://www
... 1) What is the scientific name of the guppy?_______________________ 2) Why was the guppy introduced in many parts of the world?_______________ 3) What is a predator on guppies in the wild?____________________ 4) Do two simulations for at least 5 generations each, and read the results. Write which fa ...
... 1) What is the scientific name of the guppy?_______________________ 2) Why was the guppy introduced in many parts of the world?_______________ 3) What is a predator on guppies in the wild?____________________ 4) Do two simulations for at least 5 generations each, and read the results. Write which fa ...
Disentangling the effects of water and nutrients for studying the
... Methods: We manipulated water (water addition) and nutrient (fertilizer addition) availabilities in a full-factorial experiment that lasted from September 2005 to September 2006. The responses of plants to neighbours were assessed through transplanting six target species within each experimental plo ...
... Methods: We manipulated water (water addition) and nutrient (fertilizer addition) availabilities in a full-factorial experiment that lasted from September 2005 to September 2006. The responses of plants to neighbours were assessed through transplanting six target species within each experimental plo ...
Metacommunity Dynamics: Decline of Functional
... brassicae. Indeed, abundance and diversity of parasitoids were often more strongly affected by habitat fragmentation than the abundance and diversity of herbivorous hosts, even at the scale of few hundred meters [29]. More generally, parasitoids were more sensitive to urbanization than their hosts [ ...
... brassicae. Indeed, abundance and diversity of parasitoids were often more strongly affected by habitat fragmentation than the abundance and diversity of herbivorous hosts, even at the scale of few hundred meters [29]. More generally, parasitoids were more sensitive to urbanization than their hosts [ ...
Using Phylogenetic, Functional and Trait Diversity to
... introduced by Walker and colleagues [23], sums species distances in trait space as a measure of total trait or functional dissimilarity. The second strategy, functional diversity (FD) by Petchey and Gaston [24] essentially uses the FAD trait distance matrix to create a functional dendrogram from a c ...
... introduced by Walker and colleagues [23], sums species distances in trait space as a measure of total trait or functional dissimilarity. The second strategy, functional diversity (FD) by Petchey and Gaston [24] essentially uses the FAD trait distance matrix to create a functional dendrogram from a c ...
Interspecific competition in metapopulations
... established populations of each of the three two-species combinations, the threespecies combination, and a number of single-species controls (Bengtsson, 1989). The vessels were filled with freshwater, inoculated with a natural phytoplankton assemblage, covered with insect nets to exclude predators, ...
... established populations of each of the three two-species combinations, the threespecies combination, and a number of single-species controls (Bengtsson, 1989). The vessels were filled with freshwater, inoculated with a natural phytoplankton assemblage, covered with insect nets to exclude predators, ...
Comments - Forest Isbell
... Liberal interpretations of AP as a means to identify and quantify species interactions may have resulted from ambiguous usage of the term ‘‘mechanism’’ in the BEF literature as well as in other areas of ecology. A ‘‘mechanism’’ denotes any lower-level process that contributes to generating a higher- ...
... Liberal interpretations of AP as a means to identify and quantify species interactions may have resulted from ambiguous usage of the term ‘‘mechanism’’ in the BEF literature as well as in other areas of ecology. A ‘‘mechanism’’ denotes any lower-level process that contributes to generating a higher- ...
Increasing deterministic control of primary succession on Mount St
... The vegetation structure of the potholes changed greatly over time (Table 1). Initially, only some sparsely distributed species occurred. Richness, cover and diversity increased by 1997, and evenness remained high. These changes were correlated to remarkable changes in the abundance of L. lepidus (A ...
... The vegetation structure of the potholes changed greatly over time (Table 1). Initially, only some sparsely distributed species occurred. Richness, cover and diversity increased by 1997, and evenness remained high. These changes were correlated to remarkable changes in the abundance of L. lepidus (A ...
assessment
... Estimates in the late 1960s (Carey 1975) showed small home ranges for both sexes (less than 0.1 ha), one principal burrow per animal, a 1:1 sex ratio, and habits that indicated monogamy (apparent pairs inhabited separate but proximate burrows in a joint home range isolated from other pairs). The cur ...
... Estimates in the late 1960s (Carey 1975) showed small home ranges for both sexes (less than 0.1 ha), one principal burrow per animal, a 1:1 sex ratio, and habits that indicated monogamy (apparent pairs inhabited separate but proximate burrows in a joint home range isolated from other pairs). The cur ...
Group A: Impacts of IS on organisms, communities, and landscapes
... what emergent effects are if invasion occurs across the landscape o Temporal scaling: How well do we understand whether we need to act right now to deal with an invasion or will the invasion play out and resolve itself? Ex: Zebra mussels in some habitats there’s a huge surge in their population an ...
... what emergent effects are if invasion occurs across the landscape o Temporal scaling: How well do we understand whether we need to act right now to deal with an invasion or will the invasion play out and resolve itself? Ex: Zebra mussels in some habitats there’s a huge surge in their population an ...
Indicators of Biodiversity for Ecologically Sustainable Forest
... of organizational levels, most efforts to date have focused on particular species or members of species assemblages (e.g., guilds). Landres et al. (1988: p.317) defined an indicator species as “an organism whose characteristics (e.g. presence or absence, population density, dispersion, reproductive ...
... of organizational levels, most efforts to date have focused on particular species or members of species assemblages (e.g., guilds). Landres et al. (1988: p.317) defined an indicator species as “an organism whose characteristics (e.g. presence or absence, population density, dispersion, reproductive ...
Biocontrol and Population Dynamics Theory
... Why is Biological Control Useful? • All populations eventually reach a carrying capacity and either level off or decrease. • If caused by starvation or species-induced pollution, the habitat may be damaged. • Biological control is valuable because natural enemies often cause populations to level of ...
... Why is Biological Control Useful? • All populations eventually reach a carrying capacity and either level off or decrease. • If caused by starvation or species-induced pollution, the habitat may be damaged. • Biological control is valuable because natural enemies often cause populations to level of ...
Saving the World`s Terrestrial Megafauna
... equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
... equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
Protein domains as units of genetic transfer
... the domain, with accumulation of substitutions outside, or alternatively arises from the recombination event per se. The cases of recent transfer into the gene (Class A) cannot be explained by selection: the abrupt change in BPP support for alternative topologies in the breakpoint region indicates a ...
... the domain, with accumulation of substitutions outside, or alternatively arises from the recombination event per se. The cases of recent transfer into the gene (Class A) cannot be explained by selection: the abrupt change in BPP support for alternative topologies in the breakpoint region indicates a ...
ESM 201
... are listed in this syllabus. Unless you have already learned about the mathematics of basic ecological theory (population growth, competition, predation, mutualism, foodwebs), you will find it important to read A Primer of Ecology by Nicholas J. Gotelli (called simply “Gotelli” below). Page numbers ...
... are listed in this syllabus. Unless you have already learned about the mathematics of basic ecological theory (population growth, competition, predation, mutualism, foodwebs), you will find it important to read A Primer of Ecology by Nicholas J. Gotelli (called simply “Gotelli” below). Page numbers ...
File - Science Source
... occasionally road-killed animals. They have even been known to eat cats and small dogs. ...
... occasionally road-killed animals. They have even been known to eat cats and small dogs. ...
Principles of Ecology
... C. observing the relationships that woodpeckers have with other species in their environment D. studying the internal organs of a seal to learn how it survives in its environment ...
... C. observing the relationships that woodpeckers have with other species in their environment D. studying the internal organs of a seal to learn how it survives in its environment ...
PDF - Rhino Resource Center
... Bullesbach, 1990). Insulins from the hystricomorph rodents have undergone an accelerated rate of mutation so that a phylogenetic tree based solely upon the structures of vertebrate insulins would indicate that these species diverged from the line of evolution leading to mammals at the same time as t ...
... Bullesbach, 1990). Insulins from the hystricomorph rodents have undergone an accelerated rate of mutation so that a phylogenetic tree based solely upon the structures of vertebrate insulins would indicate that these species diverged from the line of evolution leading to mammals at the same time as t ...
American Scientist A reprint from
... blindness and depigmentation can be highly variable among different species. In results obtained by Kelly Paulson and myself, from a carefully sorted sample of the 86 species of troglomorphic fishes known at the time, only seven had the same level of troglomorphism for each one of those characters ( ...
... blindness and depigmentation can be highly variable among different species. In results obtained by Kelly Paulson and myself, from a carefully sorted sample of the 86 species of troglomorphic fishes known at the time, only seven had the same level of troglomorphism for each one of those characters ( ...
Apparent competition with an invasive plant hastens the extinction of
... Key words: Ammophila arenaria; apparent competition; biotic homogenization; coastal dune ecosystems; life-table response experiment; Lupinus tidestromii; matrix population model; Point Reyes National Seashore, northern California, USA; Peromyscus maniculatus; population viability analysis; predisper ...
... Key words: Ammophila arenaria; apparent competition; biotic homogenization; coastal dune ecosystems; life-table response experiment; Lupinus tidestromii; matrix population model; Point Reyes National Seashore, northern California, USA; Peromyscus maniculatus; population viability analysis; predisper ...
Diverse Matter - at www.arxiv.org.
... example, atoms are the base constituents that make molecules. Likewise at a higher level of hierarchy, cells are the base constituents that make organisms that make populations. Owing to the scale independent-formalism, one may, at each and every level of hierarchical organization, transform the for ...
... example, atoms are the base constituents that make molecules. Likewise at a higher level of hierarchy, cells are the base constituents that make organisms that make populations. Owing to the scale independent-formalism, one may, at each and every level of hierarchical organization, transform the for ...
Species-specific effects of genetic diversity and species
... of leaf area consumed per plant by randomly choosing 20 leaves of each individual and visually assigning them to one of eight classes (0, 0–1%, 1–5%, 5–10%, 10–25%, 25–50%, 50–75%, 75–100%). For each plant, we averaged the 20 estimates of leaf loss. To test the method, we compared our estimates with ...
... of leaf area consumed per plant by randomly choosing 20 leaves of each individual and visually assigning them to one of eight classes (0, 0–1%, 1–5%, 5–10%, 10–25%, 25–50%, 50–75%, 75–100%). For each plant, we averaged the 20 estimates of leaf loss. To test the method, we compared our estimates with ...
Extending the concept of keystone species to
... The concept of keystone species radically changed the field of ecology, exemplifying how ecological communities are more than just collections of species. A keystone species is defined as a species with key roles in community structure and/or ecosystem functioning (Mills et al. 1993; Power et al. 19 ...
... The concept of keystone species radically changed the field of ecology, exemplifying how ecological communities are more than just collections of species. A keystone species is defined as a species with key roles in community structure and/or ecosystem functioning (Mills et al. 1993; Power et al. 19 ...
