DEFORESTATION PATTERNS AND HUMMINGBIRD DIvERSITy IN
... Several studies have identified niche breadth i.e. the range of resources utilized by a species as a determining factor in terms of ecological resilience (Swihart et al., 2006), and thus also decide a species geographical range (Slatyer et al., 2013). Geographically separated populations of the sam ...
... Several studies have identified niche breadth i.e. the range of resources utilized by a species as a determining factor in terms of ecological resilience (Swihart et al., 2006), and thus also decide a species geographical range (Slatyer et al., 2013). Geographically separated populations of the sam ...
Influence of migratory ungulate management on competitive
... populations of the focal species. However, processes which take place over larger scales are often not accounted for. For example, ungulate movement patterns range from resident to nomadic to long-distance migrations, and variation in movement strategy also occurs within species and populations (Mil ...
... populations of the focal species. However, processes which take place over larger scales are often not accounted for. For example, ungulate movement patterns range from resident to nomadic to long-distance migrations, and variation in movement strategy also occurs within species and populations (Mil ...
Marine Chemical Ecology: Chemical Signals and Cues Structure
... On cruises where DMS and bird densities were recorded, blue petrels and prions were significantly associated with areas where DMS levels were highest (Nevitt 2000). DMS is a predictor of krill grazing and prion and petral diets are composed predominantly of crustaceans, including krill, amphipods, an ...
... On cruises where DMS and bird densities were recorded, blue petrels and prions were significantly associated with areas where DMS levels were highest (Nevitt 2000). DMS is a predictor of krill grazing and prion and petral diets are composed predominantly of crustaceans, including krill, amphipods, an ...
Technical Report 2014-15 Lugre Tire Model for HMMWV
... difficult to use at low speeds, another drawback associated with usage of the approach in offroad applications. ...
... difficult to use at low speeds, another drawback associated with usage of the approach in offroad applications. ...
Trophic Interactions during Primary Succession
... alone is unlikely to explain the decreased lupine spread rates. However, weak dispersal ability coupled with decreased production of seeds could contribute to slower spread rates. The above mechanisms appear inadequate as explanations of the pronounced decrease in lupine population growth rates unde ...
... alone is unlikely to explain the decreased lupine spread rates. However, weak dispersal ability coupled with decreased production of seeds could contribute to slower spread rates. The above mechanisms appear inadequate as explanations of the pronounced decrease in lupine population growth rates unde ...
Effect of experimental manipulation on survival and recruitment of
... number of juveniles harvested in older age classes by the average monthly juvenile survival rate to estimate the number of juveniles <1 month old available, but not harvested. We estimated annual recruitment, the number of individuals added to the trappable population per capita per year, using popu ...
... number of juveniles harvested in older age classes by the average monthly juvenile survival rate to estimate the number of juveniles <1 month old available, but not harvested. We estimated annual recruitment, the number of individuals added to the trappable population per capita per year, using popu ...
The spatial and temporal components of functional connectivity in
... the temporal component of connectivity deserves more attention. Whereas functional connectivity is often associated with spatial patterns (spatial functional connectivity), temporal functional connectivity relates to the persistence of organisms in time, in the same place. Both temporal and spatial ...
... the temporal component of connectivity deserves more attention. Whereas functional connectivity is often associated with spatial patterns (spatial functional connectivity), temporal functional connectivity relates to the persistence of organisms in time, in the same place. Both temporal and spatial ...
Electronic supplementary material
... recorded how many nestlings were predated during the variable fledging period. This was set as the response term in the model. The total number of nestlings in the brood was set as the binomial total. Rainfall was used as a proxy for food availability (sensu Ridley & Raihani 2007) as there is often ...
... recorded how many nestlings were predated during the variable fledging period. This was set as the response term in the model. The total number of nestlings in the brood was set as the binomial total. Rainfall was used as a proxy for food availability (sensu Ridley & Raihani 2007) as there is often ...
Nasua nasua - CIRCABC
... 1.5. How likely is the organism to survive during passage along the pathway (excluding management practices that would kill the organism)? Subnote: In your comment consider whether the organism could multiply along the pathway. 1.6. How likely is the organism to survive existing management practices ...
... 1.5. How likely is the organism to survive during passage along the pathway (excluding management practices that would kill the organism)? Subnote: In your comment consider whether the organism could multiply along the pathway. 1.6. How likely is the organism to survive existing management practices ...
Oulanka Research Station, FINLAND September 8th – 11th, 2014
... Björn Malmqvist was one of the Nordic region’s leading stream and river ecologists, who combined a love of traditional, species-focused natural history with strongly question driven research, which drew on his broad knowledge of the wider ecological literature. This is demonstrated above all by the ...
... Björn Malmqvist was one of the Nordic region’s leading stream and river ecologists, who combined a love of traditional, species-focused natural history with strongly question driven research, which drew on his broad knowledge of the wider ecological literature. This is demonstrated above all by the ...
Reports
... 1 3 1 m plots (;1 m apart from each other) within each block. We used open top chambers (OTCs) with an inside diameter of ;1 m, and with qualities as described in Marion et al. (1997) to increase temperature. OTCs are commonly used in climate change experiments to raise the temperature while minimiz ...
... 1 3 1 m plots (;1 m apart from each other) within each block. We used open top chambers (OTCs) with an inside diameter of ;1 m, and with qualities as described in Marion et al. (1997) to increase temperature. OTCs are commonly used in climate change experiments to raise the temperature while minimiz ...
Hypotheses on the role of the protistan rare biosphere in a changing
... individual clones in clone libraries or, more recently, high-throughput sequencing approaches (Huse et al. 2008) have documented the presence of relatively few common taxa but vast numbers of taxa that comprise only one or a few sequences of a library or sample. An exact definition of the term rare ...
... individual clones in clone libraries or, more recently, high-throughput sequencing approaches (Huse et al. 2008) have documented the presence of relatively few common taxa but vast numbers of taxa that comprise only one or a few sequences of a library or sample. An exact definition of the term rare ...
reduced wind insect herbivore
... plant and experience any wind force that occurs there. In contrast, mobile species have the ability to seek out environments that are favorable and avoid those that are not. In this study, ladybeetles moved into the plots that were sheltered from wind and avoided those exposed to ambient wind. The b ...
... plant and experience any wind force that occurs there. In contrast, mobile species have the ability to seek out environments that are favorable and avoid those that are not. In this study, ladybeetles moved into the plots that were sheltered from wind and avoided those exposed to ambient wind. The b ...
Determinants of Species Richness in the Park Grass Experiment
... essary, or as linear models following a variety of transformations of the counts). The different approaches were compared on the basis of model checks (e.g., constancy of variance and normality of errors) using diagnostic plots (Crawley 2002). It turned out that one of the simplest methods was best, ...
... essary, or as linear models following a variety of transformations of the counts). The different approaches were compared on the basis of model checks (e.g., constancy of variance and normality of errors) using diagnostic plots (Crawley 2002). It turned out that one of the simplest methods was best, ...
Why measure bacterial production?
... DOC (Paerl 1978) is significant in that it represents a “link” between DOC and higher consumers (Pomeroy 1974). Pomeroy’s question of whether the microbial loop functioned more as a respiratory sink for DOC or as a link to higher trophic levels has certainly sparked important research into microbial ...
... DOC (Paerl 1978) is significant in that it represents a “link” between DOC and higher consumers (Pomeroy 1974). Pomeroy’s question of whether the microbial loop functioned more as a respiratory sink for DOC or as a link to higher trophic levels has certainly sparked important research into microbial ...
Jumping Spider Tricksters: Deceit, Predation, and Cognition Stim
... In an emerald rainforest of northeastern Australia, a sunbeam pierces the canopy, touches broad green leaves on the way down, and beams onto a lichen-spotted rock surface. In the beam’s circle, slow, careful motions of a brownish jumping spider are illuminated. The jumping spider belongs to the genu ...
... In an emerald rainforest of northeastern Australia, a sunbeam pierces the canopy, touches broad green leaves on the way down, and beams onto a lichen-spotted rock surface. In the beam’s circle, slow, careful motions of a brownish jumping spider are illuminated. The jumping spider belongs to the genu ...
Panthera pardus ssp. saxicolor, Persian Leopard
... very low (Farhadinia et al. 2007) – 0.06-0.1 individual/100 km² based on guesstimates in Kiabi et al. (2002). The status of the leopard in Afghanistan is poorly known. Habibi (2004) described it as threatened, noting that it is only rarely encountered in the more remote parts of its montane range, d ...
... very low (Farhadinia et al. 2007) – 0.06-0.1 individual/100 km² based on guesstimates in Kiabi et al. (2002). The status of the leopard in Afghanistan is poorly known. Habibi (2004) described it as threatened, noting that it is only rarely encountered in the more remote parts of its montane range, d ...
Brachyura (Decapoda, Crustacea) of phytobenthic
... of wave action, size and slope of the rock surfaces and dry weight of the macroalgae. Collections were done in spring, using 50 x 50 cm quadrats, randomly dropped five times on a transect 10 m long, extended parallel to the water line. Of the twelve Brachyura species identified, the most frequent an ...
... of wave action, size and slope of the rock surfaces and dry weight of the macroalgae. Collections were done in spring, using 50 x 50 cm quadrats, randomly dropped five times on a transect 10 m long, extended parallel to the water line. Of the twelve Brachyura species identified, the most frequent an ...
empirical evidence for an optimal body size in snakes
... implying that landmasses of 0.1 km2 would support a single species with a body size of 1.22 m (95% CI 5 0.37–5.25 m). Direct examination of one-species islands from our data revealed a mean body size of 1.06 m (95% CI 5 0.89–1.23 m; N 5 20 populations of six species). These results encompass the mod ...
... implying that landmasses of 0.1 km2 would support a single species with a body size of 1.22 m (95% CI 5 0.37–5.25 m). Direct examination of one-species islands from our data revealed a mean body size of 1.06 m (95% CI 5 0.89–1.23 m; N 5 20 populations of six species). These results encompass the mod ...
Landscape-scale eco-evolutionary dynamics: Selection by seed
... Abstract. Recent work in model systems has demonstrated significant effects of rapid evolutionary change on ecological processes (eco-evolutionary dynamics). Fewer studies have addressed whether eco-evolutionary dynamics structure natural ecosystems. We investigated variation in the frequency of sero ...
... Abstract. Recent work in model systems has demonstrated significant effects of rapid evolutionary change on ecological processes (eco-evolutionary dynamics). Fewer studies have addressed whether eco-evolutionary dynamics structure natural ecosystems. We investigated variation in the frequency of sero ...
Introduction to Natural Heritage
... Deliver with Professionalism. Make sure your audience is well prepared and enthusiastic about participating. Set up a positive learning atmosphere in a venue free from noise and distraction. Follow the programme as set out and deliver all the material at a good pace, suitable to the audience. Speak ...
... Deliver with Professionalism. Make sure your audience is well prepared and enthusiastic about participating. Set up a positive learning atmosphere in a venue free from noise and distraction. Follow the programme as set out and deliver all the material at a good pace, suitable to the audience. Speak ...
Ecosystem-Encyclopedia-Research-Project-Directions
... chain slide and then put and X over the organism that was ‘removed’ from that ecosystem to make that food chain unbalanced and then show or explain what will happen to the populations of each organism in the food chain as a result of removing a specific organism. Be sure to include a picture for eac ...
... chain slide and then put and X over the organism that was ‘removed’ from that ecosystem to make that food chain unbalanced and then show or explain what will happen to the populations of each organism in the food chain as a result of removing a specific organism. Be sure to include a picture for eac ...
The role of interspecific competition and hybridization in phenotypic
... Interactions between closely related species, including resource competition and hybridization, might influence phenotypic evolution and play a significant role in evolutionary diversification. There may be different outcomes of such interactions on phenotypic evolution. In sympatry, traits may dive ...
... Interactions between closely related species, including resource competition and hybridization, might influence phenotypic evolution and play a significant role in evolutionary diversification. There may be different outcomes of such interactions on phenotypic evolution. In sympatry, traits may dive ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.