Sample pages 2 PDF
... and the intrinsic sensitivity of the impacted environmental components (organisms, populations, communities, ecosystems). Each organism (or group of organisms), in fact, shows specific ecological traits that make it more sensitive to certain disturbances than others (home range amplitude, sociability ...
... and the intrinsic sensitivity of the impacted environmental components (organisms, populations, communities, ecosystems). Each organism (or group of organisms), in fact, shows specific ecological traits that make it more sensitive to certain disturbances than others (home range amplitude, sociability ...
Precise Gene Disruption in Saccharomyces cerevisiae by Double Fusion Polymerase Chain Reaction.
... the location of useful restriction sites. Often one must chose a less than optimal configuration, either leaving some of the reading frame intact or removing flanking sequences that may affect the expression of important neighboring genes. Recently a one-step PCR procedure was described for gene dis ...
... the location of useful restriction sites. Often one must chose a less than optimal configuration, either leaving some of the reading frame intact or removing flanking sequences that may affect the expression of important neighboring genes. Recently a one-step PCR procedure was described for gene dis ...
4b.1 Introduction
... using a subset of the data from experimental sites where the target species had been observed and therefore confirmed to have used the supplementary food patch in one or more of the three winters within the study period (‘Effective Sites’ models). The effect of the level of use of the feeding statio ...
... using a subset of the data from experimental sites where the target species had been observed and therefore confirmed to have used the supplementary food patch in one or more of the three winters within the study period (‘Effective Sites’ models). The effect of the level of use of the feeding statio ...
Density dependence in ungulates: a review of causes, and concepts
... abound and stem, in part, from failing to recognize that density dependence is both a lifehistory characteristic of a species (Stearns 1977), and a measureable parameter of populations (Caughley 1977). Our purpose is to clarify many of the misconceptions concerning the role of density dependence in ...
... abound and stem, in part, from failing to recognize that density dependence is both a lifehistory characteristic of a species (Stearns 1977), and a measureable parameter of populations (Caughley 1977). Our purpose is to clarify many of the misconceptions concerning the role of density dependence in ...
Species, concepts of. In Levin, S.A.
... have argued that these fields could be undermined if, say, genera, or subspecies, had the same logical status as species. Species concepts originate in taxonomy, where the species is ‘‘the basic rank of classification’’ according to the International Commission of Zoological Nomenclature. The main u ...
... have argued that these fields could be undermined if, say, genera, or subspecies, had the same logical status as species. Species concepts originate in taxonomy, where the species is ‘‘the basic rank of classification’’ according to the International Commission of Zoological Nomenclature. The main u ...
Social Evolution and Inclusive Fitness Theory: An Introduction
... that improve the reproductive success expected by an individual often have a negative impact on reproduction of members of the same species; one obvious example is behaviors involved in competition over mates, such as in display and fighting by red deer stags (figure 1.1); by monopolizing access to ...
... that improve the reproductive success expected by an individual often have a negative impact on reproduction of members of the same species; one obvious example is behaviors involved in competition over mates, such as in display and fighting by red deer stags (figure 1.1); by monopolizing access to ...
GNLCC High level Priorities 2016 DRAFT
... GNLCC. Objective was to refine upcoming FY17 funding guidance to a set of commonly shared, high priority achievable outcomes with specific objectives and science needs that will guide funding for next 5 years. The following are a summary of results to date. Advisory Team and staff recommended that G ...
... GNLCC. Objective was to refine upcoming FY17 funding guidance to a set of commonly shared, high priority achievable outcomes with specific objectives and science needs that will guide funding for next 5 years. The following are a summary of results to date. Advisory Team and staff recommended that G ...
1091-Lec19(ReintroP)
... 2003 4 (all 1-2 yrs - all dispersed -- >killed) 2004 9 (6 m 3 f; all 2 yrs) 2005 15 (10 m 5 f; all 2 yrs) ...
... 2003 4 (all 1-2 yrs - all dispersed -- >killed) 2004 9 (6 m 3 f; all 2 yrs) 2005 15 (10 m 5 f; all 2 yrs) ...
Effluents - University of Arizona
... processing will recover much of the non-edible material. Skins can be turned into leather, bone separators can recover flesh for formed products and the remainder can be made into fishmeal products. Several biotechnology products can be recovered from tilapia skins and organs. Liquid wastes can be i ...
... processing will recover much of the non-edible material. Skins can be turned into leather, bone separators can recover flesh for formed products and the remainder can be made into fishmeal products. Several biotechnology products can be recovered from tilapia skins and organs. Liquid wastes can be i ...
Spotted-tailed Quoll A vulnerable species
... Targeted feral animal control programs may benefit the Spotted-tailed Quoll through reduction of competition. However, due to the uncertainty about the uptake of poisoned baits by Quolls and the risk of secondary poisoning (and the degree to which individual animals are affected or killed) vertebrat ...
... Targeted feral animal control programs may benefit the Spotted-tailed Quoll through reduction of competition. However, due to the uncertainty about the uptake of poisoned baits by Quolls and the risk of secondary poisoning (and the degree to which individual animals are affected or killed) vertebrat ...
Why manage deer? - Lake County Forest Preserves
... Deer populations increased dramatically as this region gradually became settled. Loss of natural predators and expansion of the edge habitat deer prefer have caused a major increase in their populations. Lake County winters are not severe enough to naturally reduce herds, and automobiles are now the ...
... Deer populations increased dramatically as this region gradually became settled. Loss of natural predators and expansion of the edge habitat deer prefer have caused a major increase in their populations. Lake County winters are not severe enough to naturally reduce herds, and automobiles are now the ...
Ecosystem Integrity - Ecology and Society
... and slippery, and have different meanings for different people (Gatto 1995). In the face of such ambiguity, decision makers require simple, user−friendly, cost−effective tools that permit the introduction of sustainability criteria into an economic framework and that promote ecologically sound busin ...
... and slippery, and have different meanings for different people (Gatto 1995). In the face of such ambiguity, decision makers require simple, user−friendly, cost−effective tools that permit the introduction of sustainability criteria into an economic framework and that promote ecologically sound busin ...
Evolution and the latitudinal diversity gradient
... tree species richness and time-integrated biome areas for older time periods. Correlations were especially strong and consistent when using a time interval that included the Eocene tropical maximum. The authors concluded that biome area, integrated through evolutionary time, was the primary driver o ...
... tree species richness and time-integrated biome areas for older time periods. Correlations were especially strong and consistent when using a time interval that included the Eocene tropical maximum. The authors concluded that biome area, integrated through evolutionary time, was the primary driver o ...
callippe silverspot butterfly
... (34.6% vs. 40.6%). The percentage Callippe silverspot butterflies of unknown sex was greater within ridgeline buffers than in the population as a whole (24.2% vs. 21.4%). These results are consistent with the observation that male Callippe silverspot butterfly use hilltops more than females. Other a ...
... (34.6% vs. 40.6%). The percentage Callippe silverspot butterflies of unknown sex was greater within ridgeline buffers than in the population as a whole (24.2% vs. 21.4%). These results are consistent with the observation that male Callippe silverspot butterfly use hilltops more than females. Other a ...
File - Mr. Greening`s Science
... 26. Two different species of insect-eating birds feed and nest at different levels in the same evergreen tree. In this way they avoid A) predators ...
... 26. Two different species of insect-eating birds feed and nest at different levels in the same evergreen tree. In this way they avoid A) predators ...
Impacts of environmental variability in open populations and
... sink shown in Fig. 1a). Here, in each case, the parameters are chosen such that in a closed environment, the species goes extinct (i.e., its average growth rate is negative). But in an open environment, the species is maintained locally because of immigration, and during runs of good years it enjoys ...
... sink shown in Fig. 1a). Here, in each case, the parameters are chosen such that in a closed environment, the species goes extinct (i.e., its average growth rate is negative). But in an open environment, the species is maintained locally because of immigration, and during runs of good years it enjoys ...
S51.2: Brood parasites: The advantages of being a different species
... 1997, and, Poulin 1998). However, if the brood parasite nestling is reared by foster parents of a different species, the risk of being infected is greatly reduced compared to non-brood parasitic nestlings. Thereby, the cost of infections is reduced just because the foster parent and the brood parasi ...
... 1997, and, Poulin 1998). However, if the brood parasite nestling is reared by foster parents of a different species, the risk of being infected is greatly reduced compared to non-brood parasitic nestlings. Thereby, the cost of infections is reduced just because the foster parent and the brood parasi ...
Temporal stability of European rocky shore assemblages
... the mechanisms promoting stability (Table 1). Species fluctuations can be synchronous at some timescales, but not at others, so that long time-series enabling partitioning at varying scales are of paramount importance to identify discontinuities (Vasseur and Gaedke 2007, Downing et al. 2008, Keitt 2 ...
... the mechanisms promoting stability (Table 1). Species fluctuations can be synchronous at some timescales, but not at others, so that long time-series enabling partitioning at varying scales are of paramount importance to identify discontinuities (Vasseur and Gaedke 2007, Downing et al. 2008, Keitt 2 ...
Mt. Mansfield Amphibian Monitoring Update 2012
... observed in these pools. However, there may have been declines in foraging habitat, overwintering success, or successful development of the eggs or young. The fluctuation in spring weather has been dramatic in the past few years and this may be having an effect on those amphibians that breed in earl ...
... observed in these pools. However, there may have been declines in foraging habitat, overwintering success, or successful development of the eggs or young. The fluctuation in spring weather has been dramatic in the past few years and this may be having an effect on those amphibians that breed in earl ...
estimating species richness three different ways
... baiting, and manual search. Workers of 437 ant species were encountered. The abundance distribution was clearly lognormal, and the distribution emerged from a veil line with each doubling of sampling effort. Three richness estimates were calculated: the area under the fitted lognormal distribution, ...
... baiting, and manual search. Workers of 437 ant species were encountered. The abundance distribution was clearly lognormal, and the distribution emerged from a veil line with each doubling of sampling effort. Three richness estimates were calculated: the area under the fitted lognormal distribution, ...
Caenorhabditis elegans unc-60 gene encodes
... unc-60A and unc-60B are indicated. The X denotes the c D N A that resembles UBF1 and nucleolin; the exact position of the c D N A within the restriction fragment is not known. Only a portion of the entire 6.0 kb SalI fragment used to detect this c D N A is shown. The stippled box bordered by parenth ...
... unc-60A and unc-60B are indicated. The X denotes the c D N A that resembles UBF1 and nucleolin; the exact position of the c D N A within the restriction fragment is not known. Only a portion of the entire 6.0 kb SalI fragment used to detect this c D N A is shown. The stippled box bordered by parenth ...
The Effects of Population Density and Population Size on the
... roadside populations was never >100 M2. All roadside populations and the railway population were isolated from other such populations by at least 1 km. Sizes of patches on preserves ranged from 500 to 2500 m2 and were isolated from each other by no less than 500 m. Edges of roadside populations and ...
... roadside populations was never >100 M2. All roadside populations and the railway population were isolated from other such populations by at least 1 km. Sizes of patches on preserves ranged from 500 to 2500 m2 and were isolated from each other by no less than 500 m. Edges of roadside populations and ...
10 Walking sticks: natural selection for cryptic coloration on different
... Can we see direct evidence of natural selection? Experimental manipulations generally provide the strongest evidence for natural selection, although they may be difficult or impossible to carry out for many species. Certainly we can never do experimental manipulations to identify potential adaptatio ...
... Can we see direct evidence of natural selection? Experimental manipulations generally provide the strongest evidence for natural selection, although they may be difficult or impossible to carry out for many species. Certainly we can never do experimental manipulations to identify potential adaptatio ...
Ecological niche , , Jitka Polechov amp David Storch Department of
... Introduction Ecological niche is a term for the position of a species within an ecosystem, describing both the range of conditions necessary for persistence of the species, and its ecological role in the ecosystem. Ecological niche subsumes all of the interactions between a species and the biotic an ...
... Introduction Ecological niche is a term for the position of a species within an ecosystem, describing both the range of conditions necessary for persistence of the species, and its ecological role in the ecosystem. Ecological niche subsumes all of the interactions between a species and the biotic an ...
Niche partitioning in a sympatric cryptic species complex
... Competition theory states that multiple species should not be able to occupy the same niche indefinitely. Morphologically, similar species are expected to be ecologically alike and exhibit little niche differentiation, which makes it difficult to explain the co-occurrence of cryptic species. Here, w ...
... Competition theory states that multiple species should not be able to occupy the same niche indefinitely. Morphologically, similar species are expected to be ecologically alike and exhibit little niche differentiation, which makes it difficult to explain the co-occurrence of cryptic species. Here, w ...