The Stabilizing Effect of Intraspecific Genetic Variation on Population
... experiment. Quantifying other stability measures, such as resistance to perturbation, would have interfered with my aim of analyzing the impact of founding genetic variation. Since populations in the corn-only treatment either became extinct or declined rapidly during the experiment, data from this ...
... experiment. Quantifying other stability measures, such as resistance to perturbation, would have interfered with my aim of analyzing the impact of founding genetic variation. Since populations in the corn-only treatment either became extinct or declined rapidly during the experiment, data from this ...
Box-Ironbark Experimental Mosaic Burning Project
... fire mosaic: a) the extent of burnt vs unburnt vegetation in a landscape; and b) the season of burn (autumn, spring). Key objectives of the study were: a) to implement planned burns that differ in the extent of burn across a landscape and season of burn; b) to monitor forest structure, selected ha ...
... fire mosaic: a) the extent of burnt vs unburnt vegetation in a landscape; and b) the season of burn (autumn, spring). Key objectives of the study were: a) to implement planned burns that differ in the extent of burn across a landscape and season of burn; b) to monitor forest structure, selected ha ...
Quality and quantity of particulate organic matter and nutrition of
... We review the results obtained during the past several decades on the spatial and temporal variations of major zooplankton assemblages and biomass, zooplankton indicator species of specific water masses, and decadal changes in zooplankton communities in Korean waters. Additionally, we breifly discus ...
... We review the results obtained during the past several decades on the spatial and temporal variations of major zooplankton assemblages and biomass, zooplankton indicator species of specific water masses, and decadal changes in zooplankton communities in Korean waters. Additionally, we breifly discus ...
CBD
... flexible Integral Population Model approach (see the book by Kery and Schaub, Bayesian Population Analysis Using WinBugs). In 2016, the first empirical results from the Daphnia experimental system set up by Professor Sigurd Einum appeared. This system is excellent for parameterizing models describin ...
... flexible Integral Population Model approach (see the book by Kery and Schaub, Bayesian Population Analysis Using WinBugs). In 2016, the first empirical results from the Daphnia experimental system set up by Professor Sigurd Einum appeared. This system is excellent for parameterizing models describin ...
Animating the Carbon Cycle
... Serengeti as a net CO2 sink by facilitating pumping of atmospheric carbon back into soil reservoirs and in savanna tree regrowth (Table 1; see Appendix A in Supplemental Material). Without this sink, carbon released from the Serengeti would equal East Africa’s current annual fossil fuel carbon emiss ...
... Serengeti as a net CO2 sink by facilitating pumping of atmospheric carbon back into soil reservoirs and in savanna tree regrowth (Table 1; see Appendix A in Supplemental Material). Without this sink, carbon released from the Serengeti would equal East Africa’s current annual fossil fuel carbon emiss ...
independent gradients of producer, consumer
... after accounting for variation that could be explained by measured abiotic variables. Such correlations imply a direct effect of diversity in one trophic level on that of another. Alternatively, the absence of such correlations suggests that feedbacks through facilitation between trophic levels play ...
... after accounting for variation that could be explained by measured abiotic variables. Such correlations imply a direct effect of diversity in one trophic level on that of another. Alternatively, the absence of such correlations suggests that feedbacks through facilitation between trophic levels play ...
Chapter 14-5: Anurans - Bryophyte Ecology
... Región Cusco, Peru, at 3800-3850 m asl (Lehr & Catenazzi 2010). There is some suggestion that B. flammiventris was adapted to the habitat by having coloration on the ventral side similar to that of the tree roots where the mosses were providing habitats. The male calls, made at 10:00-16:00 hours, we ...
... Región Cusco, Peru, at 3800-3850 m asl (Lehr & Catenazzi 2010). There is some suggestion that B. flammiventris was adapted to the habitat by having coloration on the ventral side similar to that of the tree roots where the mosses were providing habitats. The male calls, made at 10:00-16:00 hours, we ...
The Role of Macroinvertebrates in Stream Ecosystem Function
... account for floods and drought). Hunter & Price (77) suggested that environmental heterogeneity may have influenced many of the classic debates on whether abiotic or biotic factors determine population change and that differences in results can be partly attributed to the relative stabilities of the ...
... account for floods and drought). Hunter & Price (77) suggested that environmental heterogeneity may have influenced many of the classic debates on whether abiotic or biotic factors determine population change and that differences in results can be partly attributed to the relative stabilities of the ...
shorebird management and conservation report
... salinity/depth, higher visitation rates, increased traffic noise and more frequent pollution events. A major concern is the reduction in the value of low-tide feeding habitat to shorebirds if there are significant losses of, or indirect impacts on, close proximity high-tide roosting habitats. Quanta ...
... salinity/depth, higher visitation rates, increased traffic noise and more frequent pollution events. A major concern is the reduction in the value of low-tide feeding habitat to shorebirds if there are significant losses of, or indirect impacts on, close proximity high-tide roosting habitats. Quanta ...
(k(:i)logia Patterns of variation in life history among
... A secondgroup of small fISheswas distinguishedby traits associatedwith rapid colonizing ability: early maturation. continuous reproduction, and small clutches. The third basic pattern was associatedwith synchronizedreprodo<:tion during the early wet season.high f~undity, absence of parental care. an ...
... A secondgroup of small fISheswas distinguishedby traits associatedwith rapid colonizing ability: early maturation. continuous reproduction, and small clutches. The third basic pattern was associatedwith synchronizedreprodo<:tion during the early wet season.high f~undity, absence of parental care. an ...
Differences in Forage-Acquisition and Fungal Enzyme Activity
... The genera Atta and Acromyrmex are often grouped as leaf-cutting ants for pest management assessments and ecological surveys, although their mature colony sizes and foraging niches may differ substantially. Few studies have addressed such interspecific differences at the same site, which prompted us ...
... The genera Atta and Acromyrmex are often grouped as leaf-cutting ants for pest management assessments and ecological surveys, although their mature colony sizes and foraging niches may differ substantially. Few studies have addressed such interspecific differences at the same site, which prompted us ...
Aphids and their natural enemies are differently affected by habitat
... The effect of landscape complexity on aphids and on their natural enemies was analysed using mixed-effects models, in which we included landscape sector and field (nested within landscape sector) as random factors to account for the non-independent errors in our hierarchically nested designs. The eff ...
... The effect of landscape complexity on aphids and on their natural enemies was analysed using mixed-effects models, in which we included landscape sector and field (nested within landscape sector) as random factors to account for the non-independent errors in our hierarchically nested designs. The eff ...
Effects of intra- and interspecific competition on
... on the survival of the most sensitive species, which was explained by an enhanced cannibalism and predation behaviour that alleviated food limitations. Gui and Grant (2008) reported compensatory mechanisms at specific toxicant exposure and competition levels owing to densitydependent populations fac ...
... on the survival of the most sensitive species, which was explained by an enhanced cannibalism and predation behaviour that alleviated food limitations. Gui and Grant (2008) reported compensatory mechanisms at specific toxicant exposure and competition levels owing to densitydependent populations fac ...
PANTHERA ONCA - Carnivore Conservation
... Mexico presents a national laboratory for studying jaguar conservation on lands beyond public PA boundaries. No other country in the jaguar’s range has a greater percentage of its forests in community ownership than Mexico (Bray et al. 2005; J.J. Figel, unpublished data). With an estimated 56-62% of ...
... Mexico presents a national laboratory for studying jaguar conservation on lands beyond public PA boundaries. No other country in the jaguar’s range has a greater percentage of its forests in community ownership than Mexico (Bray et al. 2005; J.J. Figel, unpublished data). With an estimated 56-62% of ...
Impacts of Warming on the Structure and Functioning of Aquatic
... dealing with multi-species systems Empirical ecological research is typically carried out over small spatiotemporal scales (Callahan, 1984) and rarely across multiple levels of organisation (e.g. individuals to ecosystems), largely due to logistic constraints. This is a major challenge because clima ...
... dealing with multi-species systems Empirical ecological research is typically carried out over small spatiotemporal scales (Callahan, 1984) and rarely across multiple levels of organisation (e.g. individuals to ecosystems), largely due to logistic constraints. This is a major challenge because clima ...
South Africa - BirdLife Data Zone
... with these edges being wider and higher in the east (the Drakensberg escarpment), reaching peaks of over 3,500 m in Lesotho. The width of the coastal margin varies from c.50 km to 200 km; it is widest in the south and narrowest in the east, but broadens out from northeastern KwaZulu-Natal northwards ...
... with these edges being wider and higher in the east (the Drakensberg escarpment), reaching peaks of over 3,500 m in Lesotho. The width of the coastal margin varies from c.50 km to 200 km; it is widest in the south and narrowest in the east, but broadens out from northeastern KwaZulu-Natal northwards ...
- Wiley Online Library
... Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), PO Box 50, 6700 AB, Wageningen, The Netherlands; 2RIKILT – Wageningen UR, P.O. Box 230, 6700 AE, Wageningen, The Netherlands; and 3Institute of Biology, Section Plant Ecology and Phytochemistry, Leiden University, PO Bo ...
... Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), PO Box 50, 6700 AB, Wageningen, The Netherlands; 2RIKILT – Wageningen UR, P.O. Box 230, 6700 AE, Wageningen, The Netherlands; and 3Institute of Biology, Section Plant Ecology and Phytochemistry, Leiden University, PO Bo ...
Seed limitation and the coexistence of pioneer tree species
... confidence in the dispersal function. Croton seeds are ballistically dispersed, land close to the plant and may be secondarily dispersed a few meters more by ants. For three gaps that lacked adult Croton trees within 30 m, seedling recruit abundance was an order of magnitude higher than estimated an ...
... confidence in the dispersal function. Croton seeds are ballistically dispersed, land close to the plant and may be secondarily dispersed a few meters more by ants. For three gaps that lacked adult Croton trees within 30 m, seedling recruit abundance was an order of magnitude higher than estimated an ...
Nuttall`s Cottontail (Sylvilagus nuttallii nuttallii)
... and the Eastern Cottontail (Sylvilagus floridanus) were sister taxa forming an unresolved clade (Ruedas 1998). But, Halanych and Robinson (1997) using mitochondrial DNA (12S rRNA gene) demonstrated that S. nuttallii was most closely related to the Desert Cottontail (Sylvilagus audubonii) with a sequ ...
... and the Eastern Cottontail (Sylvilagus floridanus) were sister taxa forming an unresolved clade (Ruedas 1998). But, Halanych and Robinson (1997) using mitochondrial DNA (12S rRNA gene) demonstrated that S. nuttallii was most closely related to the Desert Cottontail (Sylvilagus audubonii) with a sequ ...
Effects of body size and resource availability on
... californica Haldeman (native) and Batillaria attramentaria Sowerby (non-indigenous) to investigate how resource levels set by intraspecific competition may influence dispersal rates. I used two distinct size classes of the snails (mature and immature) to determine if the effects of competition on di ...
... californica Haldeman (native) and Batillaria attramentaria Sowerby (non-indigenous) to investigate how resource levels set by intraspecific competition may influence dispersal rates. I used two distinct size classes of the snails (mature and immature) to determine if the effects of competition on di ...
Perennial Herbaceous Biomass Production and Harvest in the
... grama. These feedstocks are currently the focus of collaborative efforts funded by the U.S. Department of Agriculture to create a Midwestern regional system for producing advanced transportation fuels derived from native perennial grasses. Guidelines were designed to focus on site selection, plantin ...
... grama. These feedstocks are currently the focus of collaborative efforts funded by the U.S. Department of Agriculture to create a Midwestern regional system for producing advanced transportation fuels derived from native perennial grasses. Guidelines were designed to focus on site selection, plantin ...
The impact of nitrogen deposition on acid grasslands in the Atlantic
... Pearson and Stewart, 1993; Sheppard and Leith, 2002). Concentrations of ammonia high enough to cause direct toxicity are quite rare in Europe and generally only occur in the immediate vicinity of point sources. However, at lower levels, the effects of N deposition on vegetation can still be observed ...
... Pearson and Stewart, 1993; Sheppard and Leith, 2002). Concentrations of ammonia high enough to cause direct toxicity are quite rare in Europe and generally only occur in the immediate vicinity of point sources. However, at lower levels, the effects of N deposition on vegetation can still be observed ...
Management Plan for the Banded Killifish
... Newfoundland. Additional potential threats include development activities such as road development, mineral exploration and urban/cabin development. Additional issues, such as water temperature and availability of suitable habitat, are not considered limiting factors throughout most of the region. T ...
... Newfoundland. Additional potential threats include development activities such as road development, mineral exploration and urban/cabin development. Additional issues, such as water temperature and availability of suitable habitat, are not considered limiting factors throughout most of the region. T ...
Piping Plover (Charadrius melodus melodus)
... subpopulation was predicted to decrease from its current level “to only about 100 adults within 40 years”. Conversely, the southern Nova Scotia subpopulation was predicted to remain stable or to increase slowly (+0.5% per year). This subpopulation was therefore projected to increase slowly over time ...
... subpopulation was predicted to decrease from its current level “to only about 100 adults within 40 years”. Conversely, the southern Nova Scotia subpopulation was predicted to remain stable or to increase slowly (+0.5% per year). This subpopulation was therefore projected to increase slowly over time ...
Central West Region - pest management strategy (PDF
... aim to maximise the effectiveness of pest control programs, particularly through cooperative programs with neighbours and others. The NPWS is committed to a regional approach to pest management where the programs are developed and often undertaken in collaboration with neighbours, other government a ...
... aim to maximise the effectiveness of pest control programs, particularly through cooperative programs with neighbours and others. The NPWS is committed to a regional approach to pest management where the programs are developed and often undertaken in collaboration with neighbours, other government a ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.