Lesson Overview
... sunlight, heat, precipitation, humidity, wind or water currents, soil type, etc. For example, a bullfrog could be affected by abiotic factors such as water availability, temperature, and humidity. ...
... sunlight, heat, precipitation, humidity, wind or water currents, soil type, etc. For example, a bullfrog could be affected by abiotic factors such as water availability, temperature, and humidity. ...
Ecological processes regulating geographic distributions of
... habitats can restrict the distribution of a species. Biotic, interspecific interactions can also restrict where a species can occur. The lack of adaptation to a change in environmental characteristics has long been understood to prohibit colonization of novel habitats. In this case, the genetic vari ...
... habitats can restrict the distribution of a species. Biotic, interspecific interactions can also restrict where a species can occur. The lack of adaptation to a change in environmental characteristics has long been understood to prohibit colonization of novel habitats. In this case, the genetic vari ...
Stoichiometry of actual vs. potential predator–prey interactions
... nutrient-poor prey species (Denno & Fagan 2003; Matsumura et al. 2004). These general expectations depend in part on speculation about the functional consequences of interspecific differences in consumer nutrient demand evident in compiled databases of insect stoichiometry (Elser et al. 2000; Sterne ...
... nutrient-poor prey species (Denno & Fagan 2003; Matsumura et al. 2004). These general expectations depend in part on speculation about the functional consequences of interspecific differences in consumer nutrient demand evident in compiled databases of insect stoichiometry (Elser et al. 2000; Sterne ...
moreno WR06142.qxd - Federación Galega de Caza
... 2002), we performed density estimates in some years only in June, when populations were at their highest levels. Intra-annual population growth (IPG) was calculated each year to detect population increases due to reproduction. The IPG for a given year (i) was calculated by dividing KAImin(i) by KAIm ...
... 2002), we performed density estimates in some years only in June, when populations were at their highest levels. Intra-annual population growth (IPG) was calculated each year to detect population increases due to reproduction. The IPG for a given year (i) was calculated by dividing KAImin(i) by KAIm ...
amphibian contributions to ecosystem services
... are relatively easy to care for and maintain. Although the number of amphibians in the pet trade is difficult to quantify and separate from live animals destined for human consumption, it is clear that millions of amphibians are sold annually to serve as pets (Jensen and Camp 2003; Garner et al. 200 ...
... are relatively easy to care for and maintain. Although the number of amphibians in the pet trade is difficult to quantify and separate from live animals destined for human consumption, it is clear that millions of amphibians are sold annually to serve as pets (Jensen and Camp 2003; Garner et al. 200 ...
Path-integral calculation for the emergence of rapid evolution from
... defended prey is less healthy). In Fig. 1(a), at first there are only the wild-type prey and the predator in the system and the dynamics exhibits normal cycles where the predator lags behind the prey by π/2. When predation pressure is high, around t ∼ 400, a mutation has given rise to a defended pre ...
... defended prey is less healthy). In Fig. 1(a), at first there are only the wild-type prey and the predator in the system and the dynamics exhibits normal cycles where the predator lags behind the prey by π/2. When predation pressure is high, around t ∼ 400, a mutation has given rise to a defended pre ...
Interactions of components of habitats alter composition and
... McGuinness & Underwood 1986; Jenkins, WalkerSmith & Hamer 2002; Healey & Hovel 2004). McGuinness & Underwood (1986) showed that the diversity of structural components did not always increase the diversity of organisms colonizing intertidal boulders. McCoy & Bell (1991) provided a model of the two ma ...
... McGuinness & Underwood 1986; Jenkins, WalkerSmith & Hamer 2002; Healey & Hovel 2004). McGuinness & Underwood (1986) showed that the diversity of structural components did not always increase the diversity of organisms colonizing intertidal boulders. McCoy & Bell (1991) provided a model of the two ma ...
10th Mountain Lion Workshop
... historical perspectives. Recognizing that special licenses to date suggest a harvest focus on male lions, the region is maintaining (and adjusting with this permit setting process where necessary) female subquotas equal to approximately 20% of the total number of limited licenses. Region 3 in southw ...
... historical perspectives. Recognizing that special licenses to date suggest a harvest focus on male lions, the region is maintaining (and adjusting with this permit setting process where necessary) female subquotas equal to approximately 20% of the total number of limited licenses. Region 3 in southw ...
A Review of Alberta`s Draft Recovery Plan for Woodland Caribou
... The Plan acknowledges the very high social value of caribou (p. 9) However, the Plan fails to include or analyze any positive economic benefits associated with caribou recovery and KB ...
... The Plan acknowledges the very high social value of caribou (p. 9) However, the Plan fails to include or analyze any positive economic benefits associated with caribou recovery and KB ...
Life-history evolution in the anthropocene: effects of
... Why do species or populations vary in life-history plasticity? H6: For some nutrients, anthropogenic change will increase the spatial and temporal variability of nutrient availability, selecting for greater plasticity in response to that nutrient Questions about sexual traits Why does investment in ...
... Why do species or populations vary in life-history plasticity? H6: For some nutrients, anthropogenic change will increase the spatial and temporal variability of nutrient availability, selecting for greater plasticity in response to that nutrient Questions about sexual traits Why does investment in ...
The Green and Golden Bell Frog Key Populations in the Lower Hunter
... any to the north in the Tomago wetlands. Furthermore, given the small size and poor measures of viability of the other remnant populations in the Hunter catchment, the GGBF population on Kooragang Island by comparison is much larger and more robust and so of major conservation significance to the sp ...
... any to the north in the Tomago wetlands. Furthermore, given the small size and poor measures of viability of the other remnant populations in the Hunter catchment, the GGBF population on Kooragang Island by comparison is much larger and more robust and so of major conservation significance to the sp ...
Ecological Differentiation in a Hybridizing Cryptic Species Complex By Patrick William Turko
... throughout much of North America, and are considered a cryptic species complex due to their lack of phylogenetically informative morphological characters. They appear to have no biological mating barriers: hybrids may dominate or coexist with either or both parental species, and are sexually compete ...
... throughout much of North America, and are considered a cryptic species complex due to their lack of phylogenetically informative morphological characters. They appear to have no biological mating barriers: hybrids may dominate or coexist with either or both parental species, and are sexually compete ...
Resource partitioning among top predators in a Miocene food web
... species to carnivore diets, we used the stable isotope mixingmodel software ISOSOURCE v. 1.3.1. [48]. For a specified number of isotopic systems and isotopic values of carnivorans and potential prey, ISOSOURCE finds the combinations of prey proportions that are mathematically feasible solutions for ...
... species to carnivore diets, we used the stable isotope mixingmodel software ISOSOURCE v. 1.3.1. [48]. For a specified number of isotopic systems and isotopic values of carnivorans and potential prey, ISOSOURCE finds the combinations of prey proportions that are mathematically feasible solutions for ...
Limits on ecosystem trophic complexity: insights from ecological
... It is useful to reflect on potential interpretations of the metric r. As mentioned above, the term ‘role’ is a measure of how many distinct functions (i.e. groups or clusters of nodes that mostly share nodes to which they are linked by input and output flows) are present in the network. In this sens ...
... It is useful to reflect on potential interpretations of the metric r. As mentioned above, the term ‘role’ is a measure of how many distinct functions (i.e. groups or clusters of nodes that mostly share nodes to which they are linked by input and output flows) are present in the network. In this sens ...
International Northern Bald Ibis Geronticus eremita
... to control firewood collection to prevent destruction or degradation of NBI feeding areas to stop hunting to control the construction of illegal buildings on or near to NBI breeding and feeding sites to reduce the risk of intoxication Considerable progress has been made over recent years wi ...
... to control firewood collection to prevent destruction or degradation of NBI feeding areas to stop hunting to control the construction of illegal buildings on or near to NBI breeding and feeding sites to reduce the risk of intoxication Considerable progress has been made over recent years wi ...
Journal of Bacteriology
... Mass spectrometric (MS) analysis. (i) MALDI-TOF MS. Polyketides of B. amyloliquefaciens FZB 42 were identified in extracts of lyophilized culture filtrates and XAD7 extracts by MALDI-TOF MS. Mass spectra were recorded with a Bruker Daltonik Reflex MALDI-TOF instrument containing a 337-nm nitrogen la ...
... Mass spectrometric (MS) analysis. (i) MALDI-TOF MS. Polyketides of B. amyloliquefaciens FZB 42 were identified in extracts of lyophilized culture filtrates and XAD7 extracts by MALDI-TOF MS. Mass spectra were recorded with a Bruker Daltonik Reflex MALDI-TOF instrument containing a 337-nm nitrogen la ...
Interacting environmental mosaics drive geographic variation in
... Although theory suggests geographic variation in species’ performance is determined by multiple niche parameters, little consideration has been given to the spatial structure of interacting stressors that may shape local and regional vulnerability to global change. Here, we use spatially explicit mo ...
... Although theory suggests geographic variation in species’ performance is determined by multiple niche parameters, little consideration has been given to the spatial structure of interacting stressors that may shape local and regional vulnerability to global change. Here, we use spatially explicit mo ...
Ostoja, SM, EW Schupp, S. Durham, and R. Klinger. 2013. Seed
... Russell, S.K., E.W. Schupp, and V.J. Tepedino. 1998. Reproductive biology of curlleaf mountain mahogany, Cercocarpus ledifolius (Rosaceae): self-compatibility, pollen limitation, and wind pollination. Plant Species Biology 13: 7–12. Russell, S.K. and E.W. Schupp. 1998. Effects of microhabitat patchi ...
... Russell, S.K., E.W. Schupp, and V.J. Tepedino. 1998. Reproductive biology of curlleaf mountain mahogany, Cercocarpus ledifolius (Rosaceae): self-compatibility, pollen limitation, and wind pollination. Plant Species Biology 13: 7–12. Russell, S.K. and E.W. Schupp. 1998. Effects of microhabitat patchi ...
Plant genotype and nitrogen loading influence seagrass productivity
... and extreme levels of nitrogen loading on traits that affect ecological processes (at the population, community, and ecosystem levels) for Zostera marina, a widespread marine angiosperm that forms monospecific meadows throughout coastal areas in the Northern Hemisphere. We found effects of both genot ...
... and extreme levels of nitrogen loading on traits that affect ecological processes (at the population, community, and ecosystem levels) for Zostera marina, a widespread marine angiosperm that forms monospecific meadows throughout coastal areas in the Northern Hemisphere. We found effects of both genot ...
Limits on ecosystem trophic complexity: insights from
... It is useful to reflect on potential interpretations of the metric r. As mentioned above, the term ‘role’ is a measure of how many distinct functions (i.e. groups or clusters of nodes that mostly share nodes to which they are linked by input and output flows) are present in the network. In this sens ...
... It is useful to reflect on potential interpretations of the metric r. As mentioned above, the term ‘role’ is a measure of how many distinct functions (i.e. groups or clusters of nodes that mostly share nodes to which they are linked by input and output flows) are present in the network. In this sens ...
Asymmetric effects of intra- and interspecific competition on a pond
... 1993, Skulason and Smith 1995). Thus, we predicted that the prevalence of metamorphosis would increase and paedomorphosis would decrease with conspecific density, consistent with the hypothesis that favorable aquatic conditions promote paedomorphosis (Whiteman 1994), and that heterospecific density wo ...
... 1993, Skulason and Smith 1995). Thus, we predicted that the prevalence of metamorphosis would increase and paedomorphosis would decrease with conspecific density, consistent with the hypothesis that favorable aquatic conditions promote paedomorphosis (Whiteman 1994), and that heterospecific density wo ...
An examination of multiple factors affecting community structure in
... and experimental communities (Cortwright 1987). The design included amphibian larvae and two predaceous insects common in the study and nearby ponds in 1984. Specific predictions were: (1) R. sylvatica and A. jeffersonianum survivorship should be least in the presence of larval A. opacum predators, ...
... and experimental communities (Cortwright 1987). The design included amphibian larvae and two predaceous insects common in the study and nearby ponds in 1984. Specific predictions were: (1) R. sylvatica and A. jeffersonianum survivorship should be least in the presence of larval A. opacum predators, ...
How parasites affect interactions between competitors and predators
... is not the only characteristic that parasites can influence, so there should be great scope for TMIEs in parasitism modules. The degree to which short-term effects are important in parasite modules will thus depend on the type of TMIEs, if any, induced by parasites; we will also discuss possible exa ...
... is not the only characteristic that parasites can influence, so there should be great scope for TMIEs in parasitism modules. The degree to which short-term effects are important in parasite modules will thus depend on the type of TMIEs, if any, induced by parasites; we will also discuss possible exa ...
Fungal alteration of the elemental composition of leaf litter affects
... conditioned leaf litter often allows a higher survival, growth rate and/or reproductive output and thus enhances shredder fitness (Grac!a, 2001). Early studies showed that aquatic hyphomycete species differ in degradative capabilities when they are inoculated individually onto leaf litter (Suberkrop ...
... conditioned leaf litter often allows a higher survival, growth rate and/or reproductive output and thus enhances shredder fitness (Grac!a, 2001). Early studies showed that aquatic hyphomycete species differ in degradative capabilities when they are inoculated individually onto leaf litter (Suberkrop ...