Effects of disturbance by Siberian marmots (Marmota sibirica) on
... coarse scale (Figure 1). Their disturbance may have reduced the contrast between quadrats or destroyed the inherent structural complexity among quadrats, resulting in homogenization. On the Mongolian steppe, as in other arid ecosystems, vegetation such as Caragana microphylla and E. chinensis is or ...
... coarse scale (Figure 1). Their disturbance may have reduced the contrast between quadrats or destroyed the inherent structural complexity among quadrats, resulting in homogenization. On the Mongolian steppe, as in other arid ecosystems, vegetation such as Caragana microphylla and E. chinensis is or ...
25 4. RESEARCH ARTICLE OIL PALM EXPANSION
... surveyed in a tropical human dominated landscape of southwestern Costa Rica, where oil palm plantations have become the second commonest land cover after pastures. Moths were sampled during six months (Feb-Jul) with automatic funnel traps in four habitat types (interior and margin of old-growth fore ...
... surveyed in a tropical human dominated landscape of southwestern Costa Rica, where oil palm plantations have become the second commonest land cover after pastures. Moths were sampled during six months (Feb-Jul) with automatic funnel traps in four habitat types (interior and margin of old-growth fore ...
The Ecology of Place: Contributions of Place-Based
... Tempting explanations include environmental or genetic differences that elicit different plant responses—that is, changes in realized or fundamental niches, respectively—but we cannot exclude the possibility that variable responses are artifacts of using different study methods. In the second exampl ...
... Tempting explanations include environmental or genetic differences that elicit different plant responses—that is, changes in realized or fundamental niches, respectively—but we cannot exclude the possibility that variable responses are artifacts of using different study methods. In the second exampl ...
Urbanization as a major cause of biotic homogenization
... native species but they create habitat for a relatively few species that are adapting to urban and suburban conditions. This process of replacing localized native species with increasingly widespread non-native species promotes biotic homogenization on several spatial scales (McKinney and Lockwood, ...
... native species but they create habitat for a relatively few species that are adapting to urban and suburban conditions. This process of replacing localized native species with increasingly widespread non-native species promotes biotic homogenization on several spatial scales (McKinney and Lockwood, ...
Wildlife Populations in the Pacaya
... The wildlife of the Samiria River lives in an ecosystem that is characterised by large seasonal fluctuations occurring between the high water and low water seasons. The ecology of the aquatic and terrestrial wildlife revolves around these seasonal changes in water level. The large seasonal inunda ...
... The wildlife of the Samiria River lives in an ecosystem that is characterised by large seasonal fluctuations occurring between the high water and low water seasons. The ecology of the aquatic and terrestrial wildlife revolves around these seasonal changes in water level. The large seasonal inunda ...
Seed dispersal effectiveness in three adjacent plant communities
... This study investigates the dispersal ability of seeds and fruits of plant species in three adjacent plant communities — xerothermic grassland, brushwood and woodland — through analysis of the soil seed bank and its changes at the borders of the communities. I tested the following null hypothesis: e ...
... This study investigates the dispersal ability of seeds and fruits of plant species in three adjacent plant communities — xerothermic grassland, brushwood and woodland — through analysis of the soil seed bank and its changes at the borders of the communities. I tested the following null hypothesis: e ...
A survey of seed and seedling characters in 1744 Australian
... regression (Grafen, 1989, 1992; described below) in order to identify common correlated character shifts within evolutionary lineages. Cross-species and phylogenetic analyses address different questions and should be thought of as complementary (Price, 1997; Westoby et al., 1998). For example, if tw ...
... regression (Grafen, 1989, 1992; described below) in order to identify common correlated character shifts within evolutionary lineages. Cross-species and phylogenetic analyses address different questions and should be thought of as complementary (Price, 1997; Westoby et al., 1998). For example, if tw ...
Oscillations in age-structured models of consumer
... [26] on uni-directional consumerresource interactions. As pointed out by Wang et al. [27], such interactions may be modeled by age-structured models. This is the motivation of this article. Moreover, Wang and DeAngelis [26] showed that there is no periodic orbit in their ODE model and all solutions ...
... [26] on uni-directional consumerresource interactions. As pointed out by Wang et al. [27], such interactions may be modeled by age-structured models. This is the motivation of this article. Moreover, Wang and DeAngelis [26] showed that there is no periodic orbit in their ODE model and all solutions ...
Scientific Canadian
... a group of creatures for which all this anthropogenic activity might actually be a blessing, rather than a curse. A new study from the University of British Columbia may just provide the answer, in the form of the humble jellyfish. Before I make my case, I want to deal with any sticklers out there w ...
... a group of creatures for which all this anthropogenic activity might actually be a blessing, rather than a curse. A new study from the University of British Columbia may just provide the answer, in the form of the humble jellyfish. Before I make my case, I want to deal with any sticklers out there w ...
Wobbling of What - Semantic Scholar
... The fact that complementary interactions are comparable with stacking in their effect may be surprising, but if this were not so and there were just one predominant type of nucleotide interactions, the other would not be described in textbooks. It is not less surprising th ...
... The fact that complementary interactions are comparable with stacking in their effect may be surprising, but if this were not so and there were just one predominant type of nucleotide interactions, the other would not be described in textbooks. It is not less surprising th ...
COSEWIC Assessment and Status Report on the Eastern Mountain
... no obvious means of long-distance dispersal. Seed longevity in the soil is not documented but is probably limited to a few years based on other Geum species. Seeds are easily germinated in cultivation following cold treatment. Vegetative reproduction occurs by stout rhizomes that produce new rosette ...
... no obvious means of long-distance dispersal. Seed longevity in the soil is not documented but is probably limited to a few years based on other Geum species. Seeds are easily germinated in cultivation following cold treatment. Vegetative reproduction occurs by stout rhizomes that produce new rosette ...
the purine-pyrimidine classification scheme reveals new
... NDEQ, QHRK, MILF, HY. The only exception is FYW. 2. We studied all known tRNA genes of 104 different organisms (Sprinzl et al., 1999). It is known that the STOP codons do not have any tRNA. We found that there are also no tRNA genes containing anticodons reverse to the STOP anticodons (ACT, ATC and ...
... NDEQ, QHRK, MILF, HY. The only exception is FYW. 2. We studied all known tRNA genes of 104 different organisms (Sprinzl et al., 1999). It is known that the STOP codons do not have any tRNA. We found that there are also no tRNA genes containing anticodons reverse to the STOP anticodons (ACT, ATC and ...
Experimental Manipulation of a Desert Rodent Community: Food
... or remove certaincombinationsof species of seed-eatingrodents and ants from 0.25-ha plots in the ChihuahuanDesert of southeasternArizona. These experimentsevaluate the extent to which food availability and interspecificcompetition influence rodent populations. Monitoringwith live traps revealedthat: ...
... or remove certaincombinationsof species of seed-eatingrodents and ants from 0.25-ha plots in the ChihuahuanDesert of southeasternArizona. These experimentsevaluate the extent to which food availability and interspecificcompetition influence rodent populations. Monitoringwith live traps revealedthat: ...
Beyond demography and delisting: ecological recovery for
... nominally increased after dependent young experienced heightened mortality. Additionally, the level of response among Alaskan moose living under virtual predator-free conditions for 25+ years closely resembled that of conspecifics in Wyoming. That such striking variation in prey responses exists re-e ...
... nominally increased after dependent young experienced heightened mortality. Additionally, the level of response among Alaskan moose living under virtual predator-free conditions for 25+ years closely resembled that of conspecifics in Wyoming. That such striking variation in prey responses exists re-e ...
Ch. 53 Notes - Dublin Schools
... • The demographic transition is the move from the first state toward the second state Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... • The demographic transition is the move from the first state toward the second state Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Guideline on Pest Risk Analysis - GB non
... up to 98 embryos (J. Dick pers. comm.). This species shows active brood care which enhances its ability to breed in conditions of low dissolved oxygen and high temperatures such as may occur in ballast (Dick et al 1998). C. pseudogracilis is a freshwater species and is therefore unlikely to survive ...
... up to 98 embryos (J. Dick pers. comm.). This species shows active brood care which enhances its ability to breed in conditions of low dissolved oxygen and high temperatures such as may occur in ballast (Dick et al 1998). C. pseudogracilis is a freshwater species and is therefore unlikely to survive ...
Traitbased tests of coexistence mechanisms
... the same cells but have higher fecundity. Conversely, it would be incorrect to characterise the within-community pattern as a purely biotic outcome of competitive exclusion because environmental heterogeneity is what makes niche partitioning at this scale possible. In fact, viewed at a finer, within ...
... the same cells but have higher fecundity. Conversely, it would be incorrect to characterise the within-community pattern as a purely biotic outcome of competitive exclusion because environmental heterogeneity is what makes niche partitioning at this scale possible. In fact, viewed at a finer, within ...
Comparative ecology of desert small mammals: a
... is to pursue manipulative studies over shorter periods, commonly (but not always) in experimental enclosures. This approach requires a metric for assessing the magnitude of competition under different experimental conditions and to this end J. S. Brown (1988, 1989b) developed the concept of giving-u ...
... is to pursue manipulative studies over shorter periods, commonly (but not always) in experimental enclosures. This approach requires a metric for assessing the magnitude of competition under different experimental conditions and to this end J. S. Brown (1988, 1989b) developed the concept of giving-u ...
Rapid human-induced divergence of life
... phenotypic responses to human activities. Employing an explicitly predictive approach— ...
... phenotypic responses to human activities. Employing an explicitly predictive approach— ...
Factors affecting survival in Mediterranean populations of the
... et al. 2010), although other possible factors such as sex were not taken into account. Survival is frequently estimated using capture-markrecapture techniques based on recaptures and/or recoveries of birds ringed with metal or coloured rings, or a combination of both (Lebreton et al. 1992), or by ra ...
... et al. 2010), although other possible factors such as sex were not taken into account. Survival is frequently estimated using capture-markrecapture techniques based on recaptures and/or recoveries of birds ringed with metal or coloured rings, or a combination of both (Lebreton et al. 1992), or by ra ...
Sequence Search
... Lab tests to check if the T-cells attacked the identified bacterial and viral proteins ...
... Lab tests to check if the T-cells attacked the identified bacterial and viral proteins ...
The ecological consequences of habitat fragmentation
... associated with reduction in patch area (Saunders et al., 1991; Ewers & Didham, 2006a), as different species have widely varying resource and area requirements, and differing dispersal abilities. For instance, highly dispersive ground beetles are less affected by area reduction than less dispersive ...
... associated with reduction in patch area (Saunders et al., 1991; Ewers & Didham, 2006a), as different species have widely varying resource and area requirements, and differing dispersal abilities. For instance, highly dispersive ground beetles are less affected by area reduction than less dispersive ...
Flora – Nationally Vulnerable species
... (http://www..nt.gov.au/nreta/wildlife/animals/threatened/pdf/birds/australian_bustard_ vu.pdf) ........................................................................................................................... 24 Conservation status .......................................................... ...
... (http://www..nt.gov.au/nreta/wildlife/animals/threatened/pdf/birds/australian_bustard_ vu.pdf) ........................................................................................................................... 24 Conservation status .......................................................... ...
Curriculum Vitae
... a Ph.D. in organic chemistry under Louis Fieser at Harvard, then went on to apply the tools of organic and biochemistry to investigations of chemical carcinogenesis at the molecular and cellular levels. Scientists from all these disciplines worked on simultaneous projects in Heidelberger’s group at ...
... a Ph.D. in organic chemistry under Louis Fieser at Harvard, then went on to apply the tools of organic and biochemistry to investigations of chemical carcinogenesis at the molecular and cellular levels. Scientists from all these disciplines worked on simultaneous projects in Heidelberger’s group at ...
ENT--Entomology - University of Kentucky
... groups of students will work with the instructor to address an important contemporary research problem and will report their results in a public talk and a project writeup. Prereq: One year of calculus and BIO 325 or FOR 340 or ENT 665, or consent of instructor. (Same as BIO/FOR 606.) ...
... groups of students will work with the instructor to address an important contemporary research problem and will report their results in a public talk and a project writeup. Prereq: One year of calculus and BIO 325 or FOR 340 or ENT 665, or consent of instructor. (Same as BIO/FOR 606.) ...