Conservation or Co-evolution? Intermediate Levels of Aboriginal
... co-evolutionary approach therefore provides predictions about where and when we should expect to find practices consistent with sustainable resource management in small-scale societies, and when the results of subsistence practices may be detrimental. Such a framework provides the means to explain v ...
... co-evolutionary approach therefore provides predictions about where and when we should expect to find practices consistent with sustainable resource management in small-scale societies, and when the results of subsistence practices may be detrimental. Such a framework provides the means to explain v ...
Effects of groundcover management on ground beetles (Coleoptera
... fecundity, growth and survival of two carabid species in laboratory experiments (Van Dijk, 1996). In an apple orchard, air temperature was positively correlated with the capture of Pterostichus melanarius Illiger although it did not affect other species (Holliday and Hagley, 1978). Soil moisture neg ...
... fecundity, growth and survival of two carabid species in laboratory experiments (Van Dijk, 1996). In an apple orchard, air temperature was positively correlated with the capture of Pterostichus melanarius Illiger although it did not affect other species (Holliday and Hagley, 1978). Soil moisture neg ...
- Wiley Online Library
... habitats had longer root life spans and consequently lost smaller quantities of nutrients through root turnover. 2. In a garden experiment, root life spans and root diameters were measured by repeated observations in minirhizotrons placed in monocultures of Lolium perenne L. and Arrhenatherum elatiu ...
... habitats had longer root life spans and consequently lost smaller quantities of nutrients through root turnover. 2. In a garden experiment, root life spans and root diameters were measured by repeated observations in minirhizotrons placed in monocultures of Lolium perenne L. and Arrhenatherum elatiu ...
Dear Colleague
... 106. How do we establish if jellyfish are taking over perturbed marine systems ? 107. Can we infer process from pattern? One of the fundamental issues in ecology is that the dynamics generally operate over time-scale that are much longer than grant income, or even academic careers. Therefore the typ ...
... 106. How do we establish if jellyfish are taking over perturbed marine systems ? 107. Can we infer process from pattern? One of the fundamental issues in ecology is that the dynamics generally operate over time-scale that are much longer than grant income, or even academic careers. Therefore the typ ...
Combining field experiments and individual
... evaluate the linkages between mechanism and longterm dynamics. Field studies that do generate long-term time series data often do not provide the kind of resolution needed to understand which underlying mechanisms are driving the dynamics. When faced with this dilemma, theoretical ecologists are oft ...
... evaluate the linkages between mechanism and longterm dynamics. Field studies that do generate long-term time series data often do not provide the kind of resolution needed to understand which underlying mechanisms are driving the dynamics. When faced with this dilemma, theoretical ecologists are oft ...
Document
... algae are indicators of a healthy environment and their absence in harsh environments, as we investigated here, could be due to the stressors such as disturbance or pollution (Orfanidis et al., 2001). In this study green algae had maximum biomass in summer and One-Way Analysis of variance showed sig ...
... algae are indicators of a healthy environment and their absence in harsh environments, as we investigated here, could be due to the stressors such as disturbance or pollution (Orfanidis et al., 2001). In this study green algae had maximum biomass in summer and One-Way Analysis of variance showed sig ...
Exploring the Relationship between Abundance and
... Figure 4. N* vs. T for hypothetical unicellular and multicellular organisms in eutrophic and oligotrophic conditions (ropt, Y, and So = 1; ρ=1, σ=0.01). For the eutrophic condition case, curves are always flat; increasing the mortality rate slightly decreases N*, but greatly decreases the temperatur ...
... Figure 4. N* vs. T for hypothetical unicellular and multicellular organisms in eutrophic and oligotrophic conditions (ropt, Y, and So = 1; ρ=1, σ=0.01). For the eutrophic condition case, curves are always flat; increasing the mortality rate slightly decreases N*, but greatly decreases the temperatur ...
BIODIVERSITY AND ECOSYSTEM FUNCTION: DO SPECIES
... human life on the planet? Does biodiversity matter? Internationally, research has begun to investigate whether the current unprecedented losses in biodiversity will damage the functioning of ecosystems. This paper reviews this work and highlights the general patterns identified. Scientific evidence ...
... human life on the planet? Does biodiversity matter? Internationally, research has begun to investigate whether the current unprecedented losses in biodiversity will damage the functioning of ecosystems. This paper reviews this work and highlights the general patterns identified. Scientific evidence ...
Hypotheses on the role of the protistan rare biosphere in a changing
... low mortality losses that might be expected for rare taxa. If extremely low abundance provides a perfect refuge from grazing mortality, taxa may persist simply by withstanding starvation conditions via resting stages or reduced metabolic activity (Fenchel & Finlay 1983, Caron et al. 1990). Given tha ...
... low mortality losses that might be expected for rare taxa. If extremely low abundance provides a perfect refuge from grazing mortality, taxa may persist simply by withstanding starvation conditions via resting stages or reduced metabolic activity (Fenchel & Finlay 1983, Caron et al. 1990). Given tha ...
effects of temperature on the size of aquatic ectotherms
... examined. Whilst some genetic evolution during the experiments may have been unavoidable in species with very short generation times (e.g. protists, bacteria), the rapidity of response even in some of these suggests that phenotypic plasticity was also observed (e.g. Margalef, 1954). The criteria for ...
... examined. Whilst some genetic evolution during the experiments may have been unavoidable in species with very short generation times (e.g. protists, bacteria), the rapidity of response even in some of these suggests that phenotypic plasticity was also observed (e.g. Margalef, 1954). The criteria for ...
New Jersey`s Landscape Project - Rutgers Environmental Stewards
... wetlands helps to ensure that imperiled species will remain a part of New Jersey’s future (Figure 3). In Most importantly, the critical area information that addition to providing habitat for the conservation of Landscape Project products provide can be used imperiled species, the Landscape Project ...
... wetlands helps to ensure that imperiled species will remain a part of New Jersey’s future (Figure 3). In Most importantly, the critical area information that addition to providing habitat for the conservation of Landscape Project products provide can be used imperiled species, the Landscape Project ...
What is Biodiversity
... living in a particular area. If we consider this area at its largest scale - the entire world - then biodiversity can be summarized as "life on earth." However, scientists use a broader de nition of biodiversity, designed to include not only living organisms and their complex interactions, but also ...
... living in a particular area. If we consider this area at its largest scale - the entire world - then biodiversity can be summarized as "life on earth." However, scientists use a broader de nition of biodiversity, designed to include not only living organisms and their complex interactions, but also ...
Central Valley and Sierra Nevada
... to 11 years old and 24 inches long – ran up the largest tributaries to reproduce in the spring-fed headwater streams. By the 1950s, overfishing and habitat degradation from logging, grazing and road development caused population declines so severe that the California Department of Fish and Game (no ...
... to 11 years old and 24 inches long – ran up the largest tributaries to reproduce in the spring-fed headwater streams. By the 1950s, overfishing and habitat degradation from logging, grazing and road development caused population declines so severe that the California Department of Fish and Game (no ...
the economics of biodiversity
... The focus of the rest of this section is on quantitative measures of diversity that are intended to reflect the joint dissimilarity of a collection of species. One practical motivation for work in this area has been the need to evaluate policies aimed at protecting species from extinction. It is wor ...
... The focus of the rest of this section is on quantitative measures of diversity that are intended to reflect the joint dissimilarity of a collection of species. One practical motivation for work in this area has been the need to evaluate policies aimed at protecting species from extinction. It is wor ...
Lepomis cyanellus (Rafinesque, 1819)
... L. gibbosus has been subject to FISK assessment (Copp et al., 2009; Almeida et al., 2013) but there is no Risk assessment specific of the genus Lepomis. In the study of Centrarchidae developed in Netherlands, commissioned by the Invasive Alien Species Team of the Food and Consumer Product Safety Aut ...
... L. gibbosus has been subject to FISK assessment (Copp et al., 2009; Almeida et al., 2013) but there is no Risk assessment specific of the genus Lepomis. In the study of Centrarchidae developed in Netherlands, commissioned by the Invasive Alien Species Team of the Food and Consumer Product Safety Aut ...
Hybridization due to changing species distributions: adding
... divergence. Within this broad definition, hybridization occurs at many different levels ...
... divergence. Within this broad definition, hybridization occurs at many different levels ...
A review of the indicators for ecosystem structure and functioning
... used to support the EAFM will therefore vary among management regions (eg ecoregions). Any particular suite of indicators will further depend on actual and potential human impacts, as well as resources available for monitoring and enforcement (Degnbol and Jarre, 2004; ICES, 2005b). We therefore coll ...
... used to support the EAFM will therefore vary among management regions (eg ecoregions). Any particular suite of indicators will further depend on actual and potential human impacts, as well as resources available for monitoring and enforcement (Degnbol and Jarre, 2004; ICES, 2005b). We therefore coll ...
The potential role of ecological corridors for habitat conservation in
... ecological corridor of any length will rarely be of uniform soil and vegetation composition, and what to larger more mobile species may be a linear feature may become a series of stepping stones to a smaller species. ...
... ecological corridor of any length will rarely be of uniform soil and vegetation composition, and what to larger more mobile species may be a linear feature may become a series of stepping stones to a smaller species. ...
Read Gil's paper
... (Duftschmid, 1812) in Israel are summarized and their geographical distribution is described. The two Epomis species are mainly found in the northern and central parts of Israel but also extend southward to the Central Negev region and Arava Valley. Museum records combined with the present survey da ...
... (Duftschmid, 1812) in Israel are summarized and their geographical distribution is described. The two Epomis species are mainly found in the northern and central parts of Israel but also extend southward to the Central Negev region and Arava Valley. Museum records combined with the present survey da ...
Environmental responses, not species interactions
... correlations (synchronizing effect) offset by strong competition (desynchronizing effect), or negative environmental correlations and weak competition. The best way to quantify the effects of environmental stochasticity, demographic stochasticity, and interspecific interactions is to remove them one ...
... correlations (synchronizing effect) offset by strong competition (desynchronizing effect), or negative environmental correlations and weak competition. The best way to quantify the effects of environmental stochasticity, demographic stochasticity, and interspecific interactions is to remove them one ...
Owl winter irruptions as an indicator of small mammal population
... short length of the time series, temporal autocorrelation analyses could not be done for small mammal data. However, the correlation between the summer abundance of the different species of small mammals and the number of observations of the three owl species was calculated performing a one-year tim ...
... short length of the time series, temporal autocorrelation analyses could not be done for small mammal data. However, the correlation between the summer abundance of the different species of small mammals and the number of observations of the three owl species was calculated performing a one-year tim ...
3 Rodents and lagomorphs 3.9.07 - Hystrix, the Italian Journal of
... ICETA/Universidade do Porto, Campus Agrario de Vairão, 4485-661 Vairao, Portugal The relationship between genetic diversity and parasites has been often studied, but there are few that report natural populations and multiple pathogen systems. Parasite resistance is expected to be higher in genetical ...
... ICETA/Universidade do Porto, Campus Agrario de Vairão, 4485-661 Vairao, Portugal The relationship between genetic diversity and parasites has been often studied, but there are few that report natural populations and multiple pathogen systems. Parasite resistance is expected to be higher in genetical ...
The Association and Diversification of Trapezia Crabs with their
... Abstract. Natural and anthropogenic disturbances are changing coral reef systems at local and global scales. In Mo’orea, French Polynesia, it is unsure whether a Pocilloporidand Poritid-dominant reef represents either a transitional, recovering community or a new, stable community (Pratchett 2010). ...
... Abstract. Natural and anthropogenic disturbances are changing coral reef systems at local and global scales. In Mo’orea, French Polynesia, it is unsure whether a Pocilloporidand Poritid-dominant reef represents either a transitional, recovering community or a new, stable community (Pratchett 2010). ...
NITROGEN LIMITATION AND TROPHIC VS. ABIOTIC INFLUENCES ON M E. R
... al. 1997, Hunter and Price 1998). Food web characteristics may also be important. For example, species diversity in ‘‘reticulated’’ food webs may dilute trophic effects both bottom-up and top-down (Strong 1992, Polis and Strong 1996). Moreover, trophic and abiotic factors may interact; greater plant ...
... al. 1997, Hunter and Price 1998). Food web characteristics may also be important. For example, species diversity in ‘‘reticulated’’ food webs may dilute trophic effects both bottom-up and top-down (Strong 1992, Polis and Strong 1996). Moreover, trophic and abiotic factors may interact; greater plant ...
Ecological scaling alters observed relationships between diversity
... Gilliam, 2002; De Clerck, 2004; Weiher et al., 2004; Grace et al., 2006). There is a growing consensus that biodiversity generally increases ecosystem process rates, that functional diversity tends to be a more important driver than taxonomic diversity, and that diversity effects generally saturate ...
... Gilliam, 2002; De Clerck, 2004; Weiher et al., 2004; Grace et al., 2006). There is a growing consensus that biodiversity generally increases ecosystem process rates, that functional diversity tends to be a more important driver than taxonomic diversity, and that diversity effects generally saturate ...