Ecological Functions of Nearshore Hardbottom Habitats in East
... areas of mainland southeast and east central Florida in terms of the most abundant species. This information suggests there is a southern NHB ichthyofauna and a less diverse northern fauna, particularly north of the deflection of the Gulf Stream offshore. Potential explanations for such difference i ...
... areas of mainland southeast and east central Florida in terms of the most abundant species. This information suggests there is a southern NHB ichthyofauna and a less diverse northern fauna, particularly north of the deflection of the Gulf Stream offshore. Potential explanations for such difference i ...
MS Word Document - 2.1 MB - Department of Environment, Land
... The effects of the interaction between predation and the reduction in habitat complexity (resulting from the fuel management strategy) led to a decline in Southern Brown Bandicoot occurrence and the complete loss of Long-nosed Potoroos at the burn sites. The fuel management strategy also resulted in ...
... The effects of the interaction between predation and the reduction in habitat complexity (resulting from the fuel management strategy) led to a decline in Southern Brown Bandicoot occurrence and the complete loss of Long-nosed Potoroos at the burn sites. The fuel management strategy also resulted in ...
Detection of alternative stable states in marine communities
... the bifurcation fold. The variables then show a discontinuous shift at the fold to an alternative stable point with a very small change in parameter values. Moreover, the state of the system before the fold cannot be recovered by a small reversal in parameter values. Parameters must be pushed back t ...
... the bifurcation fold. The variables then show a discontinuous shift at the fold to an alternative stable point with a very small change in parameter values. Moreover, the state of the system before the fold cannot be recovered by a small reversal in parameter values. Parameters must be pushed back t ...
Download 174. Belfield, T., T. Tunison, J. Chase, and S. McDaniel. 2011. Rare plant stabilization projects at Hawai`i Volcanoes National Park, 1998-2008
... montane rain forest with an average survivorship of 21% after 6-7 years. Average survivorship is expected to drop over time because of the anticipated decline of planted Clermontia peleana which accounts for over half of the surviving plantings. There was moderately high survivorship of Phyllostegia ...
... montane rain forest with an average survivorship of 21% after 6-7 years. Average survivorship is expected to drop over time because of the anticipated decline of planted Clermontia peleana which accounts for over half of the surviving plantings. There was moderately high survivorship of Phyllostegia ...
Direct inhibition of leaf dark respiration by elevated CO is
... of CO2 are important given rising atmospheric concentrations of CO2 ( Houghton, 1997) and the key role dark respiration plays in plant and ecosystem-level carbon balance. Respiratory CO2 efflux from plants may constitute over 50% of net CO2 fixed in photosynthesis ( Farrar, 1985; Tjoelker et al., 19 ...
... of CO2 are important given rising atmospheric concentrations of CO2 ( Houghton, 1997) and the key role dark respiration plays in plant and ecosystem-level carbon balance. Respiratory CO2 efflux from plants may constitute over 50% of net CO2 fixed in photosynthesis ( Farrar, 1985; Tjoelker et al., 19 ...
Succession in plankton communities
... cellular ion pumps for which it was named: a continuous, active transport mechanism serves to maintain a concentration gradient. It is estimated that this balance between sinking and upward diffusion existed over the 10,000 years preceding the industrial revolution (Raven and Falkowski 1999). Future ...
... cellular ion pumps for which it was named: a continuous, active transport mechanism serves to maintain a concentration gradient. It is estimated that this balance between sinking and upward diffusion existed over the 10,000 years preceding the industrial revolution (Raven and Falkowski 1999). Future ...
Below-ground ectomycorrhizal communities: the effect of small scale
... decomposing litter (Leake and Read 1997), pollen (PerezMoreno and Read 2001a), saprotrophic fungi (Lindahl et al. 1999), from soil fauna such as springtails (Klironomos and Hart 2001) and nematodes (Perez-Moreno and Read 2001b), and from stone particles in the soil (van Schöll et al. 2008). In tempe ...
... decomposing litter (Leake and Read 1997), pollen (PerezMoreno and Read 2001a), saprotrophic fungi (Lindahl et al. 1999), from soil fauna such as springtails (Klironomos and Hart 2001) and nematodes (Perez-Moreno and Read 2001b), and from stone particles in the soil (van Schöll et al. 2008). In tempe ...
Fire and the Vegetation of the Lachlan Region
... A recommended fire frequency range is provided for each formation where it is possible to make recommendations. However, it is important to understand that these frequencies represent broad recommendations, based on the data that is available. Individual species (including threatened species) and id ...
... A recommended fire frequency range is provided for each formation where it is possible to make recommendations. However, it is important to understand that these frequencies represent broad recommendations, based on the data that is available. Individual species (including threatened species) and id ...
Community structure and organization of tidepools
... communities have not been studied as extensively as those on emergent substrata. We examine processes regulating the structure of tidepool communities for comparison with emergent substrata. The physical environment of tidepools is highly regulated by the hdal cycle, although fluctuations in physica ...
... communities have not been studied as extensively as those on emergent substrata. We examine processes regulating the structure of tidepool communities for comparison with emergent substrata. The physical environment of tidepools is highly regulated by the hdal cycle, although fluctuations in physica ...
Organic Farming for Bees
... Classical Biological Control: The traditional approach to biological control has been to rear and release predators or pathogens of pest insects. These are typically introduced species because the pests are usually themselves non-native. Examples include the multi-colored Asian lady beetle to contro ...
... Classical Biological Control: The traditional approach to biological control has been to rear and release predators or pathogens of pest insects. These are typically introduced species because the pests are usually themselves non-native. Examples include the multi-colored Asian lady beetle to contro ...
Open full article - European Journal of Entomology
... without ant attendance). Sometimes nymphs of the related species Balclutha calamagrostis Ossiannilsson, 1961 as well as aphids occurred together with B. punctata nymphs. Spikevisiting ants were recorded at only one of these sites, 65 km from St. Egyden. Irrespective of ant attendance, B. punctata ny ...
... without ant attendance). Sometimes nymphs of the related species Balclutha calamagrostis Ossiannilsson, 1961 as well as aphids occurred together with B. punctata nymphs. Spikevisiting ants were recorded at only one of these sites, 65 km from St. Egyden. Irrespective of ant attendance, B. punctata ny ...
The corals of the Mediterranean
... White gorgonia (Eunicella singularis) with bulging calyces © OCEANA/ Juan Cuetos ...
... White gorgonia (Eunicella singularis) with bulging calyces © OCEANA/ Juan Cuetos ...
Biological Control Through Intraguild Predation
... There are many examples in agricultural environments (see Table 1). The alternative food source allows the biological control predators to persist even at times of low prey abundance, but the competition for resources weakens the predatory effect on the pest species. From the perspective of the prey ...
... There are many examples in agricultural environments (see Table 1). The alternative food source allows the biological control predators to persist even at times of low prey abundance, but the competition for resources weakens the predatory effect on the pest species. From the perspective of the prey ...
Wild Species 2010 - Publications du gouvernement du Canada
... However, the high percentages of species ranked as Secure in these taxonomic groups might reflect our lack of knowledge on these species, since they were also among the taxonomic groups with the highest proportion of species ranked as Undetermined or Not Assessed. One of the important achievements o ...
... However, the high percentages of species ranked as Secure in these taxonomic groups might reflect our lack of knowledge on these species, since they were also among the taxonomic groups with the highest proportion of species ranked as Undetermined or Not Assessed. One of the important achievements o ...
introduced browsing mammals in new zealand natural forests
... Abstract. Forest dwelling browsing mammals, notably feral goats and deer, have been introduced to New Zealand over the past 220 years; prior to this such mammals were absent from New Zealand. The New Zealand forested landscape, therefore, presents an almost unique opportunity to determine the impact ...
... Abstract. Forest dwelling browsing mammals, notably feral goats and deer, have been introduced to New Zealand over the past 220 years; prior to this such mammals were absent from New Zealand. The New Zealand forested landscape, therefore, presents an almost unique opportunity to determine the impact ...
Resource Use by the Eastern Grey Kangaroo and the Black
... Honours and third year environmental science students from RMIT were willing assistants in the collection of field material. Their assistance is recognised and gratefully acknowledged. Excellent laboratory assistance was provided by Ms. Carole Hair from the Department of Medical Laboratory Technolog ...
... Honours and third year environmental science students from RMIT were willing assistants in the collection of field material. Their assistance is recognised and gratefully acknowledged. Excellent laboratory assistance was provided by Ms. Carole Hair from the Department of Medical Laboratory Technolog ...
Abundance matters: a Weld experiment testing the more individuals
... increase in protozoan richness, which may have resulted from an increase in the abundance of rare taxa in higher resource treatments (Kneitel and Miller 2002), a result consistent with the MIH. Current ideas about the relationship between diversity and productivity often focus on plant communities, ...
... increase in protozoan richness, which may have resulted from an increase in the abundance of rare taxa in higher resource treatments (Kneitel and Miller 2002), a result consistent with the MIH. Current ideas about the relationship between diversity and productivity often focus on plant communities, ...
mop4_11_re_establishment_review_0
... establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct’. A re-introduction contrasts with a ‘translocation’, which is the ‘deliberate and mediated movement of wild individuals or populations from one part of their range to ...
... establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct’. A re-introduction contrasts with a ‘translocation’, which is the ‘deliberate and mediated movement of wild individuals or populations from one part of their range to ...
stc5_18_review_re_establishment_0
... establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct’. A re-introduction contrasts with a ‘translocation’, which is the ‘deliberate and mediated movement of wild individuals or populations from one part of their range to ...
... establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct’. A re-introduction contrasts with a ‘translocation’, which is the ‘deliberate and mediated movement of wild individuals or populations from one part of their range to ...
do similar communities develop in similar sites? a test
... in sensitivity for detecting change but need to be compared at equivalent scales. Dispersal (as evidenced by colonization history) was a regulator of new zooplankton communities, because it did not occur rapidly or uniformly among similar ponds. All zooplankton do not disperse readily. The extent to ...
... in sensitivity for detecting change but need to be compared at equivalent scales. Dispersal (as evidenced by colonization history) was a regulator of new zooplankton communities, because it did not occur rapidly or uniformly among similar ponds. All zooplankton do not disperse readily. The extent to ...
Shell Hardness and Compressive Strength of the Eastern Oyster
... dry C. virginica shells aged one and nine were used for intraspecific analyses. Before the compressive strength was measured, shell thickness within 5 mm of the ventral shell margin of the curved valve was measured using digital calipers (mm). The compressive force, measured in newtons (N), needed t ...
... dry C. virginica shells aged one and nine were used for intraspecific analyses. Before the compressive strength was measured, shell thickness within 5 mm of the ventral shell margin of the curved valve was measured using digital calipers (mm). The compressive force, measured in newtons (N), needed t ...
independent gradients of producer, consumer
... GelCompar II software (Applied Maths, Austin, Texas, USA) was used to identify bands and estimate their intensity. A number of assumptions are necessary when using DGGE banding patterns to estimate taxa richness and abundance. The first is that each band represents one distinct sequence polymorphism ...
... GelCompar II software (Applied Maths, Austin, Texas, USA) was used to identify bands and estimate their intensity. A number of assumptions are necessary when using DGGE banding patterns to estimate taxa richness and abundance. The first is that each band represents one distinct sequence polymorphism ...
Evaluation of the effects of habitat restoration on
... migratory waterfowl as they use it for breeding and foraging (Meyer et al. 2010). It is also important for fishes as they use wetlands as nursery habitats, spawning grounds, and to feed (Jude and Pappas 1992). The diversity of habitats reduce the risk of predation and provide shelter from harsh lake ...
... migratory waterfowl as they use it for breeding and foraging (Meyer et al. 2010). It is also important for fishes as they use wetlands as nursery habitats, spawning grounds, and to feed (Jude and Pappas 1992). The diversity of habitats reduce the risk of predation and provide shelter from harsh lake ...
How trophic interaction strength depends on traits
... Observations show that food webs possess many more weak than strong trophic links (Kenny and Loehle 1991; Ulanowicz and Wolff 1991). We thus adopt a logarithmic scale for link strength by developing our framework in terms of ln arc . (Should arc have a unit, the unit is removed by division with a no ...
... Observations show that food webs possess many more weak than strong trophic links (Kenny and Loehle 1991; Ulanowicz and Wolff 1991). We thus adopt a logarithmic scale for link strength by developing our framework in terms of ln arc . (Should arc have a unit, the unit is removed by division with a no ...
Diet selection exhibited by juvenile and adult lifestages of the
... on an egg than did the older counterparts (H = 8.0, df = 3, P = 0.047), but there were no significant differences in the amount of time that it took other L. lineolaris lifestages to consume a whitefly egg (H = 4.8, df = 3, P = 0.19). The only significant difference in feeding duration on whitefly e ...
... on an egg than did the older counterparts (H = 8.0, df = 3, P = 0.047), but there were no significant differences in the amount of time that it took other L. lineolaris lifestages to consume a whitefly egg (H = 4.8, df = 3, P = 0.19). The only significant difference in feeding duration on whitefly e ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.