alumni garry oak meadow restoration project
... found in the rain shadow of Vancouver Island (GOERT 2007). It is exclusively found at low elevations, most often on dry, rocky slopes or bluffs, and sometimes on deep, rich, well-drained soil (Pojar and Mackinnon, 1994). Garry oak ecosystems range from shady woodlands to open meadows, and in mixed s ...
... found in the rain shadow of Vancouver Island (GOERT 2007). It is exclusively found at low elevations, most often on dry, rocky slopes or bluffs, and sometimes on deep, rich, well-drained soil (Pojar and Mackinnon, 1994). Garry oak ecosystems range from shady woodlands to open meadows, and in mixed s ...
Effects of small-scale disturbance on invasion success in marine
... form), and the dominant species-specific responses within the community. Community age was an additional factor considered through manipulation of 5-wk old assemblages and 1-yr old assemblages. Disturbance treatments, exposing primary substrate, were characterized by frequency (single, biweekly, mon ...
... form), and the dominant species-specific responses within the community. Community age was an additional factor considered through manipulation of 5-wk old assemblages and 1-yr old assemblages. Disturbance treatments, exposing primary substrate, were characterized by frequency (single, biweekly, mon ...
view / - Mesoamerican Herpetology
... and the potential benefits still are unknown in reptiles (Jenssen et al., 1989). Keren-Rotem et al. (2006) suggested that aggression by adults toward juveniles in areas of intraspecific habitat separation may be a more common occurrence than previously thought, including in cases where ontogenetic h ...
... and the potential benefits still are unknown in reptiles (Jenssen et al., 1989). Keren-Rotem et al. (2006) suggested that aggression by adults toward juveniles in areas of intraspecific habitat separation may be a more common occurrence than previously thought, including in cases where ontogenetic h ...
Experimental evidence for indirect facilitation among invasive plants
... 1. Facilitation among species may promote non-native plant invasions through alteration of environmental conditions, enemies or mutualists. However, the role of non-trophic indirect facilitation in invasions has rarely been examined. 2. We used a long-term field experiment to test for indirect facili ...
... 1. Facilitation among species may promote non-native plant invasions through alteration of environmental conditions, enemies or mutualists. However, the role of non-trophic indirect facilitation in invasions has rarely been examined. 2. We used a long-term field experiment to test for indirect facili ...
Global networks for invasion science: benefits, challenges and
... 2006). The current distribution of most invasive organisms, in both their native and introduced ranges, spans two or more continents but rarely covers the entire globe (cf. Rejmánek and Richardson 2013). Limiting the selection of focal taxa to those that have a large global range would focus resear ...
... 2006). The current distribution of most invasive organisms, in both their native and introduced ranges, spans two or more continents but rarely covers the entire globe (cf. Rejmánek and Richardson 2013). Limiting the selection of focal taxa to those that have a large global range would focus resear ...
Forecasting pollination declines through DNA barcoding
... Here, we address how DNA barcoding can vastly reduce the effort of these macroecological studies. The field hours documenting plant–pollinator interactions do not account for the hours spent in the laboratory identifying pollinators, and DNA barcoding is well established to assist with this endeavor ...
... Here, we address how DNA barcoding can vastly reduce the effort of these macroecological studies. The field hours documenting plant–pollinator interactions do not account for the hours spent in the laboratory identifying pollinators, and DNA barcoding is well established to assist with this endeavor ...
HighFour Biology Round 4 Category C: Grades 9 – 10 Tuesday
... A cnidocyte is a specialized cell unique to the phylum Cnidaria. It contains a capsule-‐like organelle housing a coiled thread that explodes outward and functions in prey capture or defense. ...
... A cnidocyte is a specialized cell unique to the phylum Cnidaria. It contains a capsule-‐like organelle housing a coiled thread that explodes outward and functions in prey capture or defense. ...
articolo completo - Società Italiana Scienza della
... by the richness and variety of the surrounding nature (Margalef, 1991); certainly we all have at least an intuitive understanding of it (Gaston, 1996). For that reason, the study of that diversity has been one of the ...
... by the richness and variety of the surrounding nature (Margalef, 1991); certainly we all have at least an intuitive understanding of it (Gaston, 1996). For that reason, the study of that diversity has been one of the ...
INDECO: Results of the investigation of modelling methods and
... from the outfall, the concentration of many different contaminants decreases and species richness increases. Hypothetically, the loss in species richness may be attributable to the increase in any single contaminant (eg. PCBs, heavy metals, nitrates) or combination of contaminants. Under these circu ...
... from the outfall, the concentration of many different contaminants decreases and species richness increases. Hypothetically, the loss in species richness may be attributable to the increase in any single contaminant (eg. PCBs, heavy metals, nitrates) or combination of contaminants. Under these circu ...
46. Pulu Keeling National Park
... Table 1: Notes regarding alignment of terminology and additional information sourced from site managers to aid in the development of the sites ...
... Table 1: Notes regarding alignment of terminology and additional information sourced from site managers to aid in the development of the sites ...
Live-bearing Seastar - Natural Values Atlas
... mm across (Plate 1). The species usually has five arms (although morphological variation is common with three, four or six arms occasionally being present) and is a rounded pentagonal shape. When alive, individuals are a consistent orange-yellow, slightly lighter on the actinal surface (Dartnall (19 ...
... mm across (Plate 1). The species usually has five arms (although morphological variation is common with three, four or six arms occasionally being present) and is a rounded pentagonal shape. When alive, individuals are a consistent orange-yellow, slightly lighter on the actinal surface (Dartnall (19 ...
Control of plant species diversity and community invasibility by
... community diversity, which in turn is widely expected to influence the susceptibility of ecosystems to species invasion. For a given community, however, immigration processes may impact diversity by means of two separable components: the number of species represented in seed inputs and the density o ...
... community diversity, which in turn is widely expected to influence the susceptibility of ecosystems to species invasion. For a given community, however, immigration processes may impact diversity by means of two separable components: the number of species represented in seed inputs and the density o ...
Asian Carp Invasion Lesson Plan
... feeding on juvenile or smaller adult Asian carp. Largemouth bass have often been observed feeding on small juvenile Asian carp, and many other native predators probably also feed on them before they grow too large. However, Asian carp produce many offspring which grow quickly and, if conditions are ...
... feeding on juvenile or smaller adult Asian carp. Largemouth bass have often been observed feeding on small juvenile Asian carp, and many other native predators probably also feed on them before they grow too large. However, Asian carp produce many offspring which grow quickly and, if conditions are ...
Land use vs. fragment size and isolation as determinants
... We also compare two aspects of land use around fragments, economic activity (peri-urban, agriculture, cattle), and property ownership (peri-urban, low income rural producers, affluent rural producers). Small mammals were surveyed in 21 fragments varying from 12 to 250 ha, and in two sites of continuo ...
... We also compare two aspects of land use around fragments, economic activity (peri-urban, agriculture, cattle), and property ownership (peri-urban, low income rural producers, affluent rural producers). Small mammals were surveyed in 21 fragments varying from 12 to 250 ha, and in two sites of continuo ...
The Theory of Natural Selection of Alfred Russel Wallace FRS
... extinct, so that the better-adapted variety would have replaced the less well-adapted variety: ‘It is evident that, of all the individuals composing the species, those forming the least numerous and most feebly organized variety would suffer first, and, were the pressure severe, must soon become ext ...
... extinct, so that the better-adapted variety would have replaced the less well-adapted variety: ‘It is evident that, of all the individuals composing the species, those forming the least numerous and most feebly organized variety would suffer first, and, were the pressure severe, must soon become ext ...
How molecular tools can help understanding species
... earthworm communities comprising leaf litter (epigeic) and deep burrowing (anecic) species in the snails’ original habitat. A similar study on a different landsnail species highlighted the need to consider seasonal changes in diet when restoring the habitat of an endangered species [13]. Technologie ...
... earthworm communities comprising leaf litter (epigeic) and deep burrowing (anecic) species in the snails’ original habitat. A similar study on a different landsnail species highlighted the need to consider seasonal changes in diet when restoring the habitat of an endangered species [13]. Technologie ...
Impacts of carp in Australia
... on waterway health before their introduction. For many waterways the decline in quality took place before the presence of carp — due to activities such as catchment clearing, removal of bankside vegetation, stream channelisation, pesticide use and overfishing of native species. However, when a speci ...
... on waterway health before their introduction. For many waterways the decline in quality took place before the presence of carp — due to activities such as catchment clearing, removal of bankside vegetation, stream channelisation, pesticide use and overfishing of native species. However, when a speci ...
Eds., K. Omori, X. Guo, N. Yoshie, N. Fujii, I.... © by TERRAPUB, 2011.
... Fisheries (DAFF) between 2008 and 2010. Sardine, anchovy, round herring, chub and horse mackerels, squid and hakes were collected from either midwater or demersal trawls, and blue and mako shark were collected via long-lining. Table 1 shows the number of stations sampled, the date and season of samp ...
... Fisheries (DAFF) between 2008 and 2010. Sardine, anchovy, round herring, chub and horse mackerels, squid and hakes were collected from either midwater or demersal trawls, and blue and mako shark were collected via long-lining. Table 1 shows the number of stations sampled, the date and season of samp ...
Restoring Native Forest Understory: The Influence of Ferns and
... We worked at Kona Hema Preserve in the South Kona district on the leeward side of Hawaiˈi Island (Figure 2). The area was grazed from ca. 1916 until 1998, when a pig-proof fence was constructed and cattle, pigs, and other ungulates were removed; since 2003 it has been ungulate-free apart from tempor ...
... We worked at Kona Hema Preserve in the South Kona district on the leeward side of Hawaiˈi Island (Figure 2). The area was grazed from ca. 1916 until 1998, when a pig-proof fence was constructed and cattle, pigs, and other ungulates were removed; since 2003 it has been ungulate-free apart from tempor ...
2011rat2
... was compared using a Kruskal–Wallis test (SPSS 1998) where significance was based on P \ 0.05. When significant differences among treatments were present for a given species, a second Kruskal–Wallis test identified significant differences among the three vertebrate-accessible treatments. Captive fee ...
... was compared using a Kruskal–Wallis test (SPSS 1998) where significance was based on P \ 0.05. When significant differences among treatments were present for a given species, a second Kruskal–Wallis test identified significant differences among the three vertebrate-accessible treatments. Captive fee ...
Plant Diversity of Forests
... The relation between elevation and species diversity is generally accepted and was documented by several authors, not only for tree species but also regarding the diversity of plants and animals (Rosenzweig, 1995). Very often hump-shaped curves with maximum species diversity at mid-elevations were r ...
... The relation between elevation and species diversity is generally accepted and was documented by several authors, not only for tree species but also regarding the diversity of plants and animals (Rosenzweig, 1995). Very often hump-shaped curves with maximum species diversity at mid-elevations were r ...
Functional traits, productivity and effects on nitrogen
... photosynthesis, leaf respiration, leaf nitrogen concentrations and specific leaf area are all positively correlated among one another and negatively correlated with leaf longevity (Reich, Walters & Ellsworth 1997). It is not known whether analogous relationships exist for leaf traits and root traits ...
... photosynthesis, leaf respiration, leaf nitrogen concentrations and specific leaf area are all positively correlated among one another and negatively correlated with leaf longevity (Reich, Walters & Ellsworth 1997). It is not known whether analogous relationships exist for leaf traits and root traits ...
niche dynamics of deer mice in a fragmented, old-growth
... concolor). Continuous old-growth forest, as defined by the Old-growth Definition Task Group (1986) for the Pacific Northwest, constitute areas >50 km2 , with ;:::8 trees/O.4 ha older than 200 years or > 15 cm dbh, and with a deep multilayered canopy having at least four conifer snags of 15 m long. T ...
... concolor). Continuous old-growth forest, as defined by the Old-growth Definition Task Group (1986) for the Pacific Northwest, constitute areas >50 km2 , with ;:::8 trees/O.4 ha older than 200 years or > 15 cm dbh, and with a deep multilayered canopy having at least four conifer snags of 15 m long. T ...
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.