Effects of human actions on four ecological systems, Margaret Candace Kosmala
... Figure 3-11: Number of aphids per plant after two weeks of being covered by mesh or left uncovered ....................................................................................................................................... 58 Figure 3-12: Log number of aphids per plant after two weeks of ...
... Figure 3-11: Number of aphids per plant after two weeks of being covered by mesh or left uncovered ....................................................................................................................................... 58 Figure 3-12: Log number of aphids per plant after two weeks of ...
Applied and Environmental Microbiology
... associated cells. In addition, a comparison of the nucleotide sequences of both genes showed that there is a large degree of conservation in the structural gene but not in the regulatory region. Our results support the hypothesis that these genes may be differentially expressed. ...
... associated cells. In addition, a comparison of the nucleotide sequences of both genes showed that there is a large degree of conservation in the structural gene but not in the regulatory region. Our results support the hypothesis that these genes may be differentially expressed. ...
How variation between individuals affects species coexistence
... of the demographic rates and interactions of individuals. Consequently, solving important problems in ecology requires understanding how processes operating at the level of individuals translate into population and community dynamics. Nonetheless, attempts to understand one of the central problems i ...
... of the demographic rates and interactions of individuals. Consequently, solving important problems in ecology requires understanding how processes operating at the level of individuals translate into population and community dynamics. Nonetheless, attempts to understand one of the central problems i ...
Information about GB Non-native Species Risk Assessments
... Does at least one species (for herbivores, predators and parasites) or suitable habitat vital for the survival, development and multiplication of the organism occur in the Risk Assessment area, in the open, in protected conditions or both? Does the organism require another species for critical stage ...
... Does at least one species (for herbivores, predators and parasites) or suitable habitat vital for the survival, development and multiplication of the organism occur in the Risk Assessment area, in the open, in protected conditions or both? Does the organism require another species for critical stage ...
The evolution of predator-prey interactions: Theory and evidence
... rate of prey (C in Equations 1 and 2), and (b) the individual’s per capita intake rate of prey required for zero population growth of the predator (B/D in Equation 1). In most cases, the relationship between prey abundance and the predator’s intake rate (its functional response) is nonlinear, and pr ...
... rate of prey (C in Equations 1 and 2), and (b) the individual’s per capita intake rate of prey required for zero population growth of the predator (B/D in Equation 1). In most cases, the relationship between prey abundance and the predator’s intake rate (its functional response) is nonlinear, and pr ...
Action Plan for the conservation of Wolverines (Gulo gulo) in Europe
... should be seen as complimentary with the other four plans and actions should be co-ordinated with those taken under the other plans since in many cases a natural guild of native predators is desirable. The plans go beyond detailed analysis of local populations' needs and focus on the specific issue ...
... should be seen as complimentary with the other four plans and actions should be co-ordinated with those taken under the other plans since in many cases a natural guild of native predators is desirable. The plans go beyond detailed analysis of local populations' needs and focus on the specific issue ...
Biblio RTF Export - Global Invasive Alien Species Information
... J. K. Webb, D. Pearson, and R. Shine, ?A small dasyurid predator (Sminthopsis virginiae) rapidly learns to avoid a toxic invader?, Wildlife ResearchWildlife Research, vol. 38, pp. 726-731, 2011. J. K. Webb, G. P. Brown, T. Child, M. J. Greenlees, B. L. Phillips, and R. Shine, ?A native dasyurid pred ...
... J. K. Webb, D. Pearson, and R. Shine, ?A small dasyurid predator (Sminthopsis virginiae) rapidly learns to avoid a toxic invader?, Wildlife ResearchWildlife Research, vol. 38, pp. 726-731, 2011. J. K. Webb, G. P. Brown, T. Child, M. J. Greenlees, B. L. Phillips, and R. Shine, ?A native dasyurid pred ...
Sequence Alignment
... The number after the matrix (BLOSUM62) refers to the minimum percent identity of the blocks used to construct the matrix; greater numbers are lesser distances. The BLOSUM series of matrices generally perform better than PAM matrices for local similarity searches. For local alignment, Blosum 62 is of ...
... The number after the matrix (BLOSUM62) refers to the minimum percent identity of the blocks used to construct the matrix; greater numbers are lesser distances. The BLOSUM series of matrices generally perform better than PAM matrices for local similarity searches. For local alignment, Blosum 62 is of ...
Amphibians as Models for Studying Environmental Change
... addition, studies on amphibian declines have provided insight into the complexity in which multiple independent factors may interact with one another to produce catastrophic and sometimes unpredictable effects. Because of the complexity of these problems, amphibian ecologists have been among the str ...
... addition, studies on amphibian declines have provided insight into the complexity in which multiple independent factors may interact with one another to produce catastrophic and sometimes unpredictable effects. Because of the complexity of these problems, amphibian ecologists have been among the str ...
pptx
... the production of a coevolutionary relationship between species is provided by examples of convergence. -There are several species of Pseudomyrmex which exhibit a range of affinity for acacias. -There are at least five independent evolutions of the acacias into the swollenthorn lifestyle. ...
... the production of a coevolutionary relationship between species is provided by examples of convergence. -There are several species of Pseudomyrmex which exhibit a range of affinity for acacias. -There are at least five independent evolutions of the acacias into the swollenthorn lifestyle. ...
Developing Biodiversity Indicators for Los Angeles County
... The Singapore Biodiversity Index, also known as City Biodiversity Index, is currently the only biodiversity index specifically designed for cities. It has three components: the native biodiversity in the city, the ecosystem services provided to the city by biodiversity, and the management of biod ...
... The Singapore Biodiversity Index, also known as City Biodiversity Index, is currently the only biodiversity index specifically designed for cities. It has three components: the native biodiversity in the city, the ecosystem services provided to the city by biodiversity, and the management of biod ...
DEFINITION: THE STUDY OF THE INTERACTION BETWEEN
... ECOLOGY DEFINITION: THE STUDY OF THE INTERACTION BETWEEN BIOTIC/ ABIOTIC FACTORS. Wednesday, May 4, 16 ...
... ECOLOGY DEFINITION: THE STUDY OF THE INTERACTION BETWEEN BIOTIC/ ABIOTIC FACTORS. Wednesday, May 4, 16 ...
stc5_12_ssap_btg_0
... The Black-tailed Godwit has a widespread but disjunct distribution in the Western Palearctic. Two subspecies occur in this area; islandica which breeds mainly in Iceland and limosa with a main breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have se ...
... The Black-tailed Godwit has a widespread but disjunct distribution in the Western Palearctic. Two subspecies occur in this area; islandica which breeds mainly in Iceland and limosa with a main breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have se ...
- Wiley Online Library
... number, SVL and tail length (with a ruler, to the nearest millimetre) and sex, but we did not individually mark them. For the small marsupial Planigale maculata, we measured body length (SVL, with a ruler, to the nearest millimetre), mass (to nearest 0.1 g), and sex, and individually toe-clipped eac ...
... number, SVL and tail length (with a ruler, to the nearest millimetre) and sex, but we did not individually mark them. For the small marsupial Planigale maculata, we measured body length (SVL, with a ruler, to the nearest millimetre), mass (to nearest 0.1 g), and sex, and individually toe-clipped eac ...
MECHANISMS INFLUENCING THE GROWTH, REPRODUCTION
... balthica in areas where P. affinis is abundant (Hessle 1924, Segerstrsle 1962) can be explained by the negative effect of M. affinis on the survival of Macoma spat, as shown in laboratory experiments by Elmgren et al. (1986). Fluctuations in the abundance of M. affinis (Segerstrsle 1937, 1960, Ander ...
... balthica in areas where P. affinis is abundant (Hessle 1924, Segerstrsle 1962) can be explained by the negative effect of M. affinis on the survival of Macoma spat, as shown in laboratory experiments by Elmgren et al. (1986). Fluctuations in the abundance of M. affinis (Segerstrsle 1937, 1960, Ander ...
(Pseudorca crassidens) around the main Hawaiian Islands
... all qualities and distinctiveness ratings to assess movements between these areas and the main Hawaiian Islands. Within encounters, all photos were used to estimate the proportion of animals within groups that were “distinctive.” For all other analyses (i.e., mark change rates, seasonality of resigh ...
... all qualities and distinctiveness ratings to assess movements between these areas and the main Hawaiian Islands. Within encounters, all photos were used to estimate the proportion of animals within groups that were “distinctive.” For all other analyses (i.e., mark change rates, seasonality of resigh ...
Stochastic models reveal conditions for cyclic dominance in sockeye
... are an invaluable tool for diagnosing the source of cyclic behavior and determining whether proposed mechanisms can actually produce the observed dynamics (Turchin 2003). In some cases, cycles arise because a population is locally unstable about an equilibrium (i.e., a fixed point), and the dominant ...
... are an invaluable tool for diagnosing the source of cyclic behavior and determining whether proposed mechanisms can actually produce the observed dynamics (Turchin 2003). In some cases, cycles arise because a population is locally unstable about an equilibrium (i.e., a fixed point), and the dominant ...
Effects of exploitation on an overabundant species: the lesser snow
... geese using multistate capture–reencounter methods. The abundance and destructive foraging behaviours of snow geese have created a trophic cascade that reduces (sub-) Arctic plant, insect and avian biodiversity, bestowing them the status of ‘overabundant’. 3. Historically, juvenile snow geese suffer ...
... geese using multistate capture–reencounter methods. The abundance and destructive foraging behaviours of snow geese have created a trophic cascade that reduces (sub-) Arctic plant, insect and avian biodiversity, bestowing them the status of ‘overabundant’. 3. Historically, juvenile snow geese suffer ...
Andrews et al. 2006_FHWA_HERP SYNTHESIS_update010908
... planet’s land surface (Vitousek et al. 1997). In fact, anthropogenic activity has transformed between one-third and one-half of the earth’s terrestrial surface (Vitousek et al. 1997). A recent analysis identifies land transformation, including road development, as the single greatest threat to conse ...
... planet’s land surface (Vitousek et al. 1997). In fact, anthropogenic activity has transformed between one-third and one-half of the earth’s terrestrial surface (Vitousek et al. 1997). A recent analysis identifies land transformation, including road development, as the single greatest threat to conse ...
Chapter 52 An Introduction to Ecology and the Biosphere Multiple
... 35) Air masses formed over the Pacific Ocean are moved by prevailing westerlies where they encounter extensive north-south mountain ranges, such as the Sierra Nevada and the Cascades. Which statement best describes the changes that these air masses undergo? A) The cool, moist Pacific air heats up as ...
... 35) Air masses formed over the Pacific Ocean are moved by prevailing westerlies where they encounter extensive north-south mountain ranges, such as the Sierra Nevada and the Cascades. Which statement best describes the changes that these air masses undergo? A) The cool, moist Pacific air heats up as ...
Ecology Ch. 3
... Ecology is the scientific study of interactions among organisms and between organisms and their physical ...
... Ecology is the scientific study of interactions among organisms and between organisms and their physical ...
Yellowstone Cougar Project - Yellowstone Park Foundation
... methods are growing in application as a way to (1) identify species, sex, and individuals, (2) estimate abundance and population growth rates, (3) quantify distribution, and (4) examine patterns of genetic population structure of various carnivores. Further, developments in molecular technology prov ...
... methods are growing in application as a way to (1) identify species, sex, and individuals, (2) estimate abundance and population growth rates, (3) quantify distribution, and (4) examine patterns of genetic population structure of various carnivores. Further, developments in molecular technology prov ...
Print
... seasons are without light. Even so, recent data has estimated the Baffin Bay population to be between 60,000 and 80,000 individuals, while the Hudson population is comprised of about 5,000 animals or so. The number of individuals in the East Greenland population is about 10,000. These numbers demons ...
... seasons are without light. Even so, recent data has estimated the Baffin Bay population to be between 60,000 and 80,000 individuals, while the Hudson population is comprised of about 5,000 animals or so. The number of individuals in the East Greenland population is about 10,000. These numbers demons ...
Ecological drivers of the Ediacaran
... quality of the Bay. Oysters, like many filter-feeding bivalves, package their waste products into excreted pellets or pseudofeces which in turn transfer nitrogen and phosphorus from the phytoplankton to benthic ecosystems (Newell 1988). Such coupling between pelagic and benthic ecosystems increases ...
... quality of the Bay. Oysters, like many filter-feeding bivalves, package their waste products into excreted pellets or pseudofeces which in turn transfer nitrogen and phosphorus from the phytoplankton to benthic ecosystems (Newell 1988). Such coupling between pelagic and benthic ecosystems increases ...