The current diet of the Sooty Owl (Tyto - DRO
... are low in abundance, the effects of a depleted terrestrial food source on native predators are virtually unknown. One such predator is the sooty owl (Tyto tenebricosa) which is a large forest owl occurring in rainforest and wet eucalypt forests in south-eastern Australia (Blakers et al. 1984). It i ...
... are low in abundance, the effects of a depleted terrestrial food source on native predators are virtually unknown. One such predator is the sooty owl (Tyto tenebricosa) which is a large forest owl occurring in rainforest and wet eucalypt forests in south-eastern Australia (Blakers et al. 1984). It i ...
Hooded Scaly-foot (Pygopus nigriceps)
... investigate and refine our understanding of the species’ biology and ecology within three years ...
... investigate and refine our understanding of the species’ biology and ecology within three years ...
Host-released dimethylsulphide activates the dinoflagellate
... stage and a chemically-activated, free-living virulent stage stands as an efficient strategy for success in the maintenance of the parasitoid population. How do they survive between host blooms, either by serially infecting a sequence of dinoflagellate hosts, as shown for other parasites (Chambouvet ...
... stage and a chemically-activated, free-living virulent stage stands as an efficient strategy for success in the maintenance of the parasitoid population. How do they survive between host blooms, either by serially infecting a sequence of dinoflagellate hosts, as shown for other parasites (Chambouvet ...
A Key Ecological Trait Drove the Evolution of Biparental Care and
... of biparental care and monogamy (Kleiman 1977; Reichard and Boesch 2003). In frogs, male parental care is typically primitive, so it is the evolution of maternal care that is critical to the evolution of biparental care (Summers and Earn 1999; Summers et al. 2006). To investigate the effect of breed ...
... of biparental care and monogamy (Kleiman 1977; Reichard and Boesch 2003). In frogs, male parental care is typically primitive, so it is the evolution of maternal care that is critical to the evolution of biparental care (Summers and Earn 1999; Summers et al. 2006). To investigate the effect of breed ...
Understanding the implications of climate change for woodland
... of individuals to modify their behaviour, morphology or physiology in response to altered environmental conditions), but other factors like fecundity and biotic interactions, may play a part. Adaptation is also likely to vary within species throughout their distribution; for ...
... of individuals to modify their behaviour, morphology or physiology in response to altered environmental conditions), but other factors like fecundity and biotic interactions, may play a part. Adaptation is also likely to vary within species throughout their distribution; for ...
Action Statement
... investigate and refine our understanding of the species’ biology and ecology within three years ...
... investigate and refine our understanding of the species’ biology and ecology within three years ...
Consulta: subjectFacets:"Chelidae" Registros recuperados: 8 Data
... Population Structure of Mesoclemmys vanderhaegei (Bour, 1973) (Testudines:Chelidae) in the Cerrado of Chapada dos Guimarães, Mato Grosso, Brazil Provedor de dados: 49 Autores: Brito,Elizângela Silva de; Strussmann,Christine; Penha,Jerry Magno Ferreira. Studies on population structure of freshwater t ...
... Population Structure of Mesoclemmys vanderhaegei (Bour, 1973) (Testudines:Chelidae) in the Cerrado of Chapada dos Guimarães, Mato Grosso, Brazil Provedor de dados: 49 Autores: Brito,Elizângela Silva de; Strussmann,Christine; Penha,Jerry Magno Ferreira. Studies on population structure of freshwater t ...
1 - SANParks
... post-ignition weather patterns. The maintenance of biodiversity is dependant on the development of such patterns, which allow for variation and species co-existence. Natural (lightning-driven) fire patterns can develop provided that the fire-prone islands are not “sub-divided” by development or tran ...
... post-ignition weather patterns. The maintenance of biodiversity is dependant on the development of such patterns, which allow for variation and species co-existence. Natural (lightning-driven) fire patterns can develop provided that the fire-prone islands are not “sub-divided” by development or tran ...
Autotrophic and heterotrophic nanoplankton in the diet of the
... Gironde estuary (E.ajfinis and Acartia bifilosa). It was also examined whether (i) the ingestion of one or the other of these prey groups is sufficient, (ii) both are necessary or (iii) another food source (non-living particles, larger prey) has to be included to sustain the production which was mea ...
... Gironde estuary (E.ajfinis and Acartia bifilosa). It was also examined whether (i) the ingestion of one or the other of these prey groups is sufficient, (ii) both are necessary or (iii) another food source (non-living particles, larger prey) has to be included to sustain the production which was mea ...
Colour polymorphism in birds: causes and
... detection by predators (Baker & Parker, 1979), reduce the chance that a bird will be seen by its prey (Götmark, 1987) and provide protection from kleptoparasites (Spear & Ainley, 1993). In these cases, the selective agents are predators, prey or competitors, and benefits for individuals may be the ...
... detection by predators (Baker & Parker, 1979), reduce the chance that a bird will be seen by its prey (Götmark, 1987) and provide protection from kleptoparasites (Spear & Ainley, 1993). In these cases, the selective agents are predators, prey or competitors, and benefits for individuals may be the ...
114. Hines, D.E. and Pawlik, J.R. 2012
... standardized qualitative scales: (1) the intensity of the tentacle reaction to contact with nauplii, (2) the duration of adherence of nauplii to the tentacle (tentacle stickiness), and (3) the reaction of nauplii to contact with the tentacle. The ranking system for each scale is detailed in Table 2. ...
... standardized qualitative scales: (1) the intensity of the tentacle reaction to contact with nauplii, (2) the duration of adherence of nauplii to the tentacle (tentacle stickiness), and (3) the reaction of nauplii to contact with the tentacle. The ranking system for each scale is detailed in Table 2. ...
Microhabitat Use by Brown Treesnakes (Boiga irregularis
... predation while locating food, both of which are influenced by abiotic factors, place a complex set of pressures on species in this trophic level. Our findings overwhelmingly indicated that moonlight is a dominant factor affecting Brown Treesnake microhabitat use, appearing to exceed terrestrial pre ...
... predation while locating food, both of which are influenced by abiotic factors, place a complex set of pressures on species in this trophic level. Our findings overwhelmingly indicated that moonlight is a dominant factor affecting Brown Treesnake microhabitat use, appearing to exceed terrestrial pre ...
Populations and Communities
... (Morin and Lawler, 1995); the methods described here will help to guide researchers in the collection of data vital for testing and developing theory. Techniques useful for discovering who eats whom are outlined in section 6.3. In addition, since symbiotic bacteria can also be transferred from one h ...
... (Morin and Lawler, 1995); the methods described here will help to guide researchers in the collection of data vital for testing and developing theory. Techniques useful for discovering who eats whom are outlined in section 6.3. In addition, since symbiotic bacteria can also be transferred from one h ...
Speciation in tropical freshwater fishes
... widely scattered journals and reports. I am here interpreting the work of many people in the light of my own field experience in various parts of Africa and South America. Understanding the diversity of tropical communities involves knowing (1) how the communities become so complex, and (2) how they ...
... widely scattered journals and reports. I am here interpreting the work of many people in the light of my own field experience in various parts of Africa and South America. Understanding the diversity of tropical communities involves knowing (1) how the communities become so complex, and (2) how they ...
Problem: American Elk - The International Mathematical Modeling
... Using accurately modeled and carefully applied data of integration techniques for the Manitoba elk, cervus candensis manitobensis species, Team 3797 has concluded that within a timely fashion, they will soon roam the Eastern United States numbers populous yet controlled – or at least within the boun ...
... Using accurately modeled and carefully applied data of integration techniques for the Manitoba elk, cervus candensis manitobensis species, Team 3797 has concluded that within a timely fashion, they will soon roam the Eastern United States numbers populous yet controlled – or at least within the boun ...
diel and seasonal variation in species composition and abundance
... Night mean abundances of carideans were significantly higher than day abundances throughout the year at both sites (Fig. 1). However, data which groups all carideans could be dominated by the few most numerous species; the day-night differences in abundance of individual species are important and mu ...
... Night mean abundances of carideans were significantly higher than day abundances throughout the year at both sites (Fig. 1). However, data which groups all carideans could be dominated by the few most numerous species; the day-night differences in abundance of individual species are important and mu ...
using mortality profiles to infer behavior in the
... often unidentifiable to species and damaged in fossil assemblages; because large samples are necessary to reconstruct a mortality profile accurately; and because most archaeologists are reluctant to destroy irreplaceable fossils (Hamlin et al. 2000; Klein and Cruz-Uribe 1984; PikeTay 1991). To creat ...
... often unidentifiable to species and damaged in fossil assemblages; because large samples are necessary to reconstruct a mortality profile accurately; and because most archaeologists are reluctant to destroy irreplaceable fossils (Hamlin et al. 2000; Klein and Cruz-Uribe 1984; PikeTay 1991). To creat ...
Climate and Mammals - Stanford University
... As we grapple with the consequences of anthropogenic climatic change, understanding the biological response of species is one of our primary defenses in forestalling future biodiversity collapse. Anticipating that response, however, is hindered by three complicating issues: (a) We have little unders ...
... As we grapple with the consequences of anthropogenic climatic change, understanding the biological response of species is one of our primary defenses in forestalling future biodiversity collapse. Anticipating that response, however, is hindered by three complicating issues: (a) We have little unders ...
Owl winter irruptions as an indicator of small mammal population
... Canada. This data-base was analyzed for the same three owl species, in winters (October to March) from 1971 to 2001 for the entire Québec region. In this data-base, only one bird per location per winter was retained in order to avoid recording the same individual several times, notwithstanding elap ...
... Canada. This data-base was analyzed for the same three owl species, in winters (October to March) from 1971 to 2001 for the entire Québec region. In this data-base, only one bird per location per winter was retained in order to avoid recording the same individual several times, notwithstanding elap ...
Countershading enhances crypsis with some bird
... The design of experiments with unmarked birds closely followed the method of Edmunds and Dewhirst (1994), in which pastry prey were made from a 3:1 mixture of plain white flour and lard. To make pastry of a light hue, 25 ml of green ‘‘Supercook’’ dye and 50 ml of water were added to 600 g of pastry; ...
... The design of experiments with unmarked birds closely followed the method of Edmunds and Dewhirst (1994), in which pastry prey were made from a 3:1 mixture of plain white flour and lard. To make pastry of a light hue, 25 ml of green ‘‘Supercook’’ dye and 50 ml of water were added to 600 g of pastry; ...
silvafennicaartic
... (Prendergast et al. 1993; Similä et al. 2006; Kahilainen et al. 2014). In other words, there may be conflicts between management plans designed to conserve different biodiversity objectives, and no single management action is beneficial for biodiversity as a whole. A multispecies approach for conser ...
... (Prendergast et al. 1993; Similä et al. 2006; Kahilainen et al. 2014). In other words, there may be conflicts between management plans designed to conserve different biodiversity objectives, and no single management action is beneficial for biodiversity as a whole. A multispecies approach for conser ...
Sparse Coding and Automatic Relevance
... dictionary and encoding at the same time (This problem is not convex!) Sparse’09 ...
... dictionary and encoding at the same time (This problem is not convex!) Sparse’09 ...
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.