Habitat displacement effect between two competing owl species in
... Foothills). Inventory of owls in different years should not influence results, as the distribution of owls in some parts of both areas has been inventoried several times since 1995 (Foothills) and 2000 (Uplands), and most territories were found to be constant through time (Kajtoch 2006; Turzański 2 ...
... Foothills). Inventory of owls in different years should not influence results, as the distribution of owls in some parts of both areas has been inventoried several times since 1995 (Foothills) and 2000 (Uplands), and most territories were found to be constant through time (Kajtoch 2006; Turzański 2 ...
Does the Janzen-Connell model for species diversity apply in a sub
... each Distance N2 = sum of replicates for all three species (one replicate is the mean of a seedling row). ...
... each Distance N2 = sum of replicates for all three species (one replicate is the mean of a seedling row). ...
Recovery Plan for the Yellow-bellied Glider
... known range in NSW. It identifies the actions to be taken to ensure the long-term viability of the Yellowbellied Glider in nature and the parties who will undertake these actions. The Yellow-bellied Glider is included as Vulnerable under the NSW Threatened Species Conservation Act 1995. The subspeci ...
... known range in NSW. It identifies the actions to be taken to ensure the long-term viability of the Yellowbellied Glider in nature and the parties who will undertake these actions. The Yellow-bellied Glider is included as Vulnerable under the NSW Threatened Species Conservation Act 1995. The subspeci ...
Effects of tree species diversity on insect herbivory
... It is generally believed that tree species growing in mixed forest stands are less susceptible to insect herbivore damage than if grown in monocultures, but previous studies have been largely observational and focussed mainly on tree species richness effects. In this thesis, I examined effects of th ...
... It is generally believed that tree species growing in mixed forest stands are less susceptible to insect herbivore damage than if grown in monocultures, but previous studies have been largely observational and focussed mainly on tree species richness effects. In this thesis, I examined effects of th ...
Role, importance and vulnerability of top predators on the Great
... predation in tropical marine ecosystems is complex and spread across a range of species and habitats that are connected in ways that are not well understood. It reinforces the need to verify the status of shark and other important predator populations within the Great Barrier Reef ecosystem. The Gre ...
... predation in tropical marine ecosystems is complex and spread across a range of species and habitats that are connected in ways that are not well understood. It reinforces the need to verify the status of shark and other important predator populations within the Great Barrier Reef ecosystem. The Gre ...
Forest Diversity and Function
... This past decade has witnessed a flurry of research activity focusing on the significance of the diversity of organisms regarding the capacity of ecosystems to capture resources and their role in regulating the stability and resilience of these systems. The results of this activity have been chronic ...
... This past decade has witnessed a flurry of research activity focusing on the significance of the diversity of organisms regarding the capacity of ecosystems to capture resources and their role in regulating the stability and resilience of these systems. The results of this activity have been chronic ...
THE EFFECTS OF FIRE AND GRAZING MANAGEMENT ON
... meant grazing was concentrated in bottom areas, reflected by significant reductions of C. validus compared to top slopes. In contrast, even utilization in camps of uniform topography reduced the prevalence of C. validus over the whole camp, reflected by similar frequencies in top and bottom slopes. ...
... meant grazing was concentrated in bottom areas, reflected by significant reductions of C. validus compared to top slopes. In contrast, even utilization in camps of uniform topography reduced the prevalence of C. validus over the whole camp, reflected by similar frequencies in top and bottom slopes. ...
Are dingoes a trophic regulator in arid Australia? A comparison of
... Abstract The direct and indirect interactions that large mammalian carnivores have with other species can have far-reaching effects on ecosystems. In recent years there has been growing interest in the role that Australia’s largest terrestrial predator, the dingo, may have in structuring ecosystems. ...
... Abstract The direct and indirect interactions that large mammalian carnivores have with other species can have far-reaching effects on ecosystems. In recent years there has been growing interest in the role that Australia’s largest terrestrial predator, the dingo, may have in structuring ecosystems. ...
Disturbance and Diversity in Low-Productivity
... Stunted vegetation; relatively sparse, heterogeneous plant cover; low stem density and woody plant cover; relatively low biomass; significant areas of exposed soil; low canopy height; greater development of understory vegetation. Infertile soils with high Mg; low Ca, N, P, and K; high heavy metals ...
... Stunted vegetation; relatively sparse, heterogeneous plant cover; low stem density and woody plant cover; relatively low biomass; significant areas of exposed soil; low canopy height; greater development of understory vegetation. Infertile soils with high Mg; low Ca, N, P, and K; high heavy metals ...
ESA 2010 handbook - Ecological Society of Australia
... Environmental Biology at Stanford University in the USA. He received his PhD from Duke University. He served as President of the Ecological Society of America, President of the American Institute of Biological Science, and Secretary General of the International Council for Science. He was Scientific ...
... Environmental Biology at Stanford University in the USA. He received his PhD from Duke University. He served as President of the Ecological Society of America, President of the American Institute of Biological Science, and Secretary General of the International Council for Science. He was Scientific ...
Full-Text PDF
... structures in rivers [5]. Early fishway construction targeted only a few fish species with strong swimming abilities, such as adult salmonids [6], but recent trends are directed at making fishways available for the passage of all species in all life stages [7]. Among the various types of fishways, W ...
... structures in rivers [5]. Early fishway construction targeted only a few fish species with strong swimming abilities, such as adult salmonids [6], but recent trends are directed at making fishways available for the passage of all species in all life stages [7]. Among the various types of fishways, W ...
Putah Creek Terrestrial Wildlife Monitoring Program 1997
... Despite this habitat loss, Putah Creek still hosts a surprising number of species. Our surveys recorded 34 species of mammals (14% of all species found in California , 69% of all species known to occur in the Central Valley, and 81% of all species recorded for Yolo County), 10 species of reptiles ( ...
... Despite this habitat loss, Putah Creek still hosts a surprising number of species. Our surveys recorded 34 species of mammals (14% of all species found in California , 69% of all species known to occur in the Central Valley, and 81% of all species recorded for Yolo County), 10 species of reptiles ( ...
restoration of tall fescue pastures to native warm season grasslands
... My overall hypotheses were that E+ plants would recover from restoration/eradication efforts better than E- plants, and that E+ fescue would reduce microbial symbionts in the soil needed by planted native species. I first conducted a field study of a tall fescue pasture consisting of four sub-units ...
... My overall hypotheses were that E+ plants would recover from restoration/eradication efforts better than E- plants, and that E+ fescue would reduce microbial symbionts in the soil needed by planted native species. I first conducted a field study of a tall fescue pasture consisting of four sub-units ...
Native species behaviour mitigates the impact of
... little water Xow (Gribben et al. 2009a). Large areas invaded by the alga, which would previously have been native seagrass or unvegetated habitats, contain Anadara (Wright et al. 2007). Anadara is a large (up to 70 mm shell length), thick-shelled bivalve occurring from the intertidal to shallow subt ...
... little water Xow (Gribben et al. 2009a). Large areas invaded by the alga, which would previously have been native seagrass or unvegetated habitats, contain Anadara (Wright et al. 2007). Anadara is a large (up to 70 mm shell length), thick-shelled bivalve occurring from the intertidal to shallow subt ...
Linking marine fisheries species to biogenic habitats in New Zealand
... human activities, both marine and land-based. While the wider field of marine ecology has been researching such fish-habitat themes for a number of decades, the species worked on are often small, site-attached, and relatively short-lived; while fisheries species tend to be larger bodied, and operate ...
... human activities, both marine and land-based. While the wider field of marine ecology has been researching such fish-habitat themes for a number of decades, the species worked on are often small, site-attached, and relatively short-lived; while fisheries species tend to be larger bodied, and operate ...
2014 - CSU, Chico
... significantly the evolutionary changes of temperate and tropical plants have changed their ability to grow in different climates. The main problem under investigation was at what frequency would tropical vs. temperate weather plants germinate in three different soil temperatures: 4°C, 20°C and 30°C. ...
... significantly the evolutionary changes of temperate and tropical plants have changed their ability to grow in different climates. The main problem under investigation was at what frequency would tropical vs. temperate weather plants germinate in three different soil temperatures: 4°C, 20°C and 30°C. ...
Hair-trigger autotomy in porcelain crabs is a highly effective escape
... we turned over in the mid-intertidal zone at two sites near Trinidad, northern California. In this survey, we found 1146 porcelain crabs (Petrolisthes spp.), with an average of about five per rock (Table 1). The most common potential predators under these rocks were five other crab species (Table 1) ...
... we turned over in the mid-intertidal zone at two sites near Trinidad, northern California. In this survey, we found 1146 porcelain crabs (Petrolisthes spp.), with an average of about five per rock (Table 1). The most common potential predators under these rocks were five other crab species (Table 1) ...
Invertebrate herbivory, plant diversity and ecosystem processes in
... geological past. Only then will we be able to in- 28% of native plants, 54 % of native birds, and vestigate patterns and processes in present-day 71% of native butterflies had decreased in abunbiodiversity. dance, with extinction rates of up to 3.4% in 40 years[6]. Then, after the so-called Permian- ...
... geological past. Only then will we be able to in- 28% of native plants, 54 % of native birds, and vestigate patterns and processes in present-day 71% of native butterflies had decreased in abunbiodiversity. dance, with extinction rates of up to 3.4% in 40 years[6]. Then, after the so-called Permian- ...
Coral Zonation Article - People Server at UNCW
... species associations in different places. Finer subdivision of a habitat may result from the inability of some species to live in close proximity to others. One result of this interaction between organisms and environment is zonation of corals and associated communities. A zonation pattern may be un ...
... species associations in different places. Finer subdivision of a habitat may result from the inability of some species to live in close proximity to others. One result of this interaction between organisms and environment is zonation of corals and associated communities. A zonation pattern may be un ...
South Australian Arid Lands Biodiversity Strategy
... of the country usually responds quickly to rain at any time of the year. In the north, annual rainfall can be less than 150 mm, whilst the rocky hills of the Gawler Ranges often receive over 300 mm. These rugged ranges are the most biologically significant and diverse part of the bioregion, with the ...
... of the country usually responds quickly to rain at any time of the year. In the north, annual rainfall can be less than 150 mm, whilst the rocky hills of the Gawler Ranges often receive over 300 mm. These rugged ranges are the most biologically significant and diverse part of the bioregion, with the ...
Population Fluctuation of the Nodular Coral
... across at 3 locations. The numbers in the boxes represent the depth in meters and low (red) and high (blue) tides. The green numbers and arrows represent the water flow trials 1-4. ..................................................................................... 36 ...
... across at 3 locations. The numbers in the boxes represent the depth in meters and low (red) and high (blue) tides. The green numbers and arrows represent the water flow trials 1-4. ..................................................................................... 36 ...
generality of leaf trait relationships: a test across six biomes
... sampling was designed so that measurements were taken to closely reflect leaf photosynthetic capacity in the field at ambient CO2 concentration (Reich et al. 1991, Ellsworth and Reich 1992). We took at least 10 (but usually more) measurements per species from several individuals at each site, then a ...
... sampling was designed so that measurements were taken to closely reflect leaf photosynthetic capacity in the field at ambient CO2 concentration (Reich et al. 1991, Ellsworth and Reich 1992). We took at least 10 (but usually more) measurements per species from several individuals at each site, then a ...
Maintenance of leaf N controls the photosynthetic CO of free-air CO
... glacial outwash comprised of loamy sand soils with low nutrient availability (Grigal et al., 1976). The mean annual precipitation is 660 mm yr!1 and the mean maximum July temperature is 28.3 1C. The BioCON FACE experiment consists of six circular plots of 20 m diameter, three of which control atmosp ...
... glacial outwash comprised of loamy sand soils with low nutrient availability (Grigal et al., 1976). The mean annual precipitation is 660 mm yr!1 and the mean maximum July temperature is 28.3 1C. The BioCON FACE experiment consists of six circular plots of 20 m diameter, three of which control atmosp ...
Adaptive resemblance: a unifying concept for
... Adaptive resemblance (AR) is a broad and inclusive concept which requires that only one condition be met: that members of a species of organism gain fitness due to a selective advantage imparted by a resemblance to some cue or signal in the organism’s environment. Essential to the evolution and main ...
... Adaptive resemblance (AR) is a broad and inclusive concept which requires that only one condition be met: that members of a species of organism gain fitness due to a selective advantage imparted by a resemblance to some cue or signal in the organism’s environment. Essential to the evolution and main ...
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.