Demographic consequences of chromatic leaf defence in tropical
... While part of BCI contains secondary forest that has been recovering since the 1880s, all our measurements were carried out in the 50 ha plot, where the absence of phytoliths of agricultural species and the continuous presence of phytoliths of forest species indicate that agriculture was absent for ...
... While part of BCI contains secondary forest that has been recovering since the 1880s, all our measurements were carried out in the 50 ha plot, where the absence of phytoliths of agricultural species and the continuous presence of phytoliths of forest species indicate that agriculture was absent for ...
Positive Plant Diversity-Soil Stability Relationships are
... cular mycorrhizal fungi (AMF) may be a mechanism for increasing sequestration of carbon (Rillig, 2004; Rillig et al., 2007; Wilson et al., 2009). The interspecific functional dissimilarity may be another mechanism through which below-ground biodiversity drives soil processes (Heemsbergen et al., 200 ...
... cular mycorrhizal fungi (AMF) may be a mechanism for increasing sequestration of carbon (Rillig, 2004; Rillig et al., 2007; Wilson et al., 2009). The interspecific functional dissimilarity may be another mechanism through which below-ground biodiversity drives soil processes (Heemsbergen et al., 200 ...
Intraspecific priority effects and disease interact to alter population
... Abstract. Intraspecific variation may shape colonization of new habitat patches through a variety of mechanisms. In particular, trait variation among colonizing individuals can produce intraspecific priority effects (IPEs), where early arrivers of a single species affect the establishment or growth of ...
... Abstract. Intraspecific variation may shape colonization of new habitat patches through a variety of mechanisms. In particular, trait variation among colonizing individuals can produce intraspecific priority effects (IPEs), where early arrivers of a single species affect the establishment or growth of ...
Abundance and Habitat Use of Nearctic Shorebirds in the Highland
... Baird’s Sandpiper being significantly lower (P < 0.05) on the Asador Plateau. While the number of individuals on the Asador Plateau was also lower than those on the rest of the plateaus, the findings were not significant (P > 0.1). The number of individuals in the Buenos Aires and Siberia Plateaus a ...
... Baird’s Sandpiper being significantly lower (P < 0.05) on the Asador Plateau. While the number of individuals on the Asador Plateau was also lower than those on the rest of the plateaus, the findings were not significant (P > 0.1). The number of individuals in the Buenos Aires and Siberia Plateaus a ...
The Influence of Interspecific Competition and Other Factors on the
... (Poli) thus settled but did not survive in the ...
... (Poli) thus settled but did not survive in the ...
- Smithsonian Tropical Research Institute
... While part of BCI contains secondary forest that has been recovering since the 1880s, all our measurements were carried out in the 50 ha plot, where the absence of phytoliths of agricultural species and the continuous presence of phytoliths of forest species indicate that agriculture was absent for ...
... While part of BCI contains secondary forest that has been recovering since the 1880s, all our measurements were carried out in the 50 ha plot, where the absence of phytoliths of agricultural species and the continuous presence of phytoliths of forest species indicate that agriculture was absent for ...
Place-Based Ecosystem Management in the Open Ocean
... and Myers 2004) found that more than 99 percent of these once-ubiquitous predators have been eliminated from the Gulf of Mexico since the advent of industrialized oceanic longlining in the 1950s. This ecological extinction of large predators can start trophic cascades in marine ecosystems, as it can ...
... and Myers 2004) found that more than 99 percent of these once-ubiquitous predators have been eliminated from the Gulf of Mexico since the advent of industrialized oceanic longlining in the 1950s. This ecological extinction of large predators can start trophic cascades in marine ecosystems, as it can ...
Biology
... Observing is often the first step in asking ecological questions. Some observations are simple. Others are complex and may form the first step in designing experiments and models. ...
... Observing is often the first step in asking ecological questions. Some observations are simple. Others are complex and may form the first step in designing experiments and models. ...
Global patterns in the impact of marine herbivores on benthic
... 2002; Valentine & Duffy 2006). Knowing how benthic primary producers are controlled is crucial for understanding how marine ecosystems function and how anthropogenic impacts may ripple through marine ecosystems via indirect effects. In turn, the producer-herbivore relationship likely varies as a fun ...
... 2002; Valentine & Duffy 2006). Knowing how benthic primary producers are controlled is crucial for understanding how marine ecosystems function and how anthropogenic impacts may ripple through marine ecosystems via indirect effects. In turn, the producer-herbivore relationship likely varies as a fun ...
2001japplecol
... in two types of communities: wetland and upland meadows. In order to look for recurring patterns, we used a set of 30 plant species drawn from a wide range of taxonomic groups. Analyses in which species are treated as independent data points can be useful in demonstrating community-level ecological ...
... in two types of communities: wetland and upland meadows. In order to look for recurring patterns, we used a set of 30 plant species drawn from a wide range of taxonomic groups. Analyses in which species are treated as independent data points can be useful in demonstrating community-level ecological ...
Demographic consequences of chromatic leaf defence in tropical
... While part of BCI contains secondary forest that has been recovering since the 1880s, all our measurements were carried out in the 50 ha plot, where the absence of phytoliths of agricultural species and the continuous presence of phytoliths of forest species indicate that agriculture was absent for ...
... While part of BCI contains secondary forest that has been recovering since the 1880s, all our measurements were carried out in the 50 ha plot, where the absence of phytoliths of agricultural species and the continuous presence of phytoliths of forest species indicate that agriculture was absent for ...
The effects of seafloor habitat complexity on survival of juvenile fishes: species-specific interactions with structural refuge.
... Steering Committee, 2002; Chuenpagdee et al., 2003; Frid, 2003). Numerous field experiments have attempted to quantify changes in structural complexity of seafloor habitats and the organization of benthic communities in response to disturbance from bottom trawls and dredges (Thrush et al., 1995; Cur ...
... Steering Committee, 2002; Chuenpagdee et al., 2003; Frid, 2003). Numerous field experiments have attempted to quantify changes in structural complexity of seafloor habitats and the organization of benthic communities in response to disturbance from bottom trawls and dredges (Thrush et al., 1995; Cur ...
On size and area: Patterns of mammalian body size extremes
... persist only on very large landmasses. On these areas, total population sizes would be sucient to prevent extinction even though population density could still be low. On small landmasses, medium-sized species should predominate. Thus, the probability of a particular species being found on any give ...
... persist only on very large landmasses. On these areas, total population sizes would be sucient to prevent extinction even though population density could still be low. On small landmasses, medium-sized species should predominate. Thus, the probability of a particular species being found on any give ...
Plant species traits are the predominant control on litter
... difference in species decomposition rates (size of circles in Fig. 1). We compared these results with those of two largescale experiments decomposing the same litter in very different climate conditions. In North America, Parton et al. (2007) found a 5.5-fold range in decomposition rate of a common ...
... difference in species decomposition rates (size of circles in Fig. 1). We compared these results with those of two largescale experiments decomposing the same litter in very different climate conditions. In North America, Parton et al. (2007) found a 5.5-fold range in decomposition rate of a common ...
Disturbance, Diversity, and Invasion: Implications for
... intervals can alter the diversity of species that are able to regenerate in heathland, and h e n c e affect overall c o m m u n i t y diversity. An intermediate fire frequency resulted in the highest species diversity. Fire has b e e n discussed as a factor that can increase the likelihood of invasi ...
... intervals can alter the diversity of species that are able to regenerate in heathland, and h e n c e affect overall c o m m u n i t y diversity. An intermediate fire frequency resulted in the highest species diversity. Fire has b e e n discussed as a factor that can increase the likelihood of invasi ...
6-1_CFLAEAS493558_U08L04
... • Mangrove swamps are found in areas that are flooded by tides and also receive freshwater runoff. • They are dominated by mangrove trees, whose roots often reach below the water. • Salt levels, nutrients, and temperature are limiting factors for mangrove swamps. The amount of time the area is wet o ...
... • Mangrove swamps are found in areas that are flooded by tides and also receive freshwater runoff. • They are dominated by mangrove trees, whose roots often reach below the water. • Salt levels, nutrients, and temperature are limiting factors for mangrove swamps. The amount of time the area is wet o ...
The recent declines of farmland bird populations in Britain: an
... shown to benefit (in terms of locally increased breeding density) from options available in one or more agri-environment schemes. Four aspects of agricultural change have been the main drivers of bird population declines, each affecting a wide range of species, namely: (1) weed-control, mainly throu ...
... shown to benefit (in terms of locally increased breeding density) from options available in one or more agri-environment schemes. Four aspects of agricultural change have been the main drivers of bird population declines, each affecting a wide range of species, namely: (1) weed-control, mainly throu ...
1 - SANParks
... post-ignition weather patterns. The maintenance of biodiversity is dependant on the development of such patterns, which allow for variation and species co-existence. Natural (lightning-driven) fire patterns can develop provided that the fire-prone islands are not “sub-divided” by development or tran ...
... post-ignition weather patterns. The maintenance of biodiversity is dependant on the development of such patterns, which allow for variation and species co-existence. Natural (lightning-driven) fire patterns can develop provided that the fire-prone islands are not “sub-divided” by development or tran ...
the effect of habitat change on the structure of dung beetle
... The effect of habitat transformation on dung beetle assemblages in the north-western Free State was investigated by comparing the fauna of a nature reserve (Sandveld Nature Reserve (SNR) (27°37'S;25°46'E» with that on neighbouring farms. Dung beetle sampling was done in four different localities wit ...
... The effect of habitat transformation on dung beetle assemblages in the north-western Free State was investigated by comparing the fauna of a nature reserve (Sandveld Nature Reserve (SNR) (27°37'S;25°46'E» with that on neighbouring farms. Dung beetle sampling was done in four different localities wit ...
Blue-winged Teal Blue-winged Teal Minnesota Conservation
... Population estimate for the mid-continental population survey: 5,875,000 (1994-2003) (NAWMP 2004 Strategic Guidance) Population goal for the mid-continental population: 4,7000,000 (Cinnamon and Blue-winged combined) (NAWMP Strategic Guidance 2004); goal is based on population numbers from 1970s, a p ...
... Population estimate for the mid-continental population survey: 5,875,000 (1994-2003) (NAWMP 2004 Strategic Guidance) Population goal for the mid-continental population: 4,7000,000 (Cinnamon and Blue-winged combined) (NAWMP Strategic Guidance 2004); goal is based on population numbers from 1970s, a p ...
10/4/06 version
... > but lasted longer. Other interspecific subcanopy variation in > soils and nutrient cycling were, with allelopathy, sufficient > to account for the observed differences in subcanopy herb ...
... > but lasted longer. Other interspecific subcanopy variation in > soils and nutrient cycling were, with allelopathy, sufficient > to account for the observed differences in subcanopy herb ...
- Wiley Online Library
... maintenance of diversity in plant communities is through feedbacks on plant growth resulting from changes in the composition of the soil community. While feedbacks may be involved in microbially mediated resource partitioning, we focus here on feedback dynamics involving plants with overlapping reso ...
... maintenance of diversity in plant communities is through feedbacks on plant growth resulting from changes in the composition of the soil community. While feedbacks may be involved in microbially mediated resource partitioning, we focus here on feedback dynamics involving plants with overlapping reso ...
Full-Text PDF
... represent taxa with fragmented populations that are often separated by large distances [15,35,39]. In these groups the potential for inbreeding and loss of genetic diversity (heterozygosity) may be relatively high [40,41]. Loss of genetic diversity can contribute to a reduced ability to adapt to a c ...
... represent taxa with fragmented populations that are often separated by large distances [15,35,39]. In these groups the potential for inbreeding and loss of genetic diversity (heterozygosity) may be relatively high [40,41]. Loss of genetic diversity can contribute to a reduced ability to adapt to a c ...
california red-legged frog - Solano County Water Agency
... moisture levels. For example, individuals occurring in coastal drainages appear to be active yearround (Jennings, Hayes, and Holland 1992) whereas frogs found in interior sites are less active during the cold season. Bulger et al. (2003), in a movement study of California red-legged frogs in norther ...
... moisture levels. For example, individuals occurring in coastal drainages appear to be active yearround (Jennings, Hayes, and Holland 1992) whereas frogs found in interior sites are less active during the cold season. Bulger et al. (2003), in a movement study of California red-legged frogs in norther ...
Where The Wild Extinctions Are
... passes the reasonability test -- for example, we would expect to find more species in a state than we find in any one county in that state. Does this species-area relationship work in reverse? That is to say, if the area of a forest is reduced, does the number of species in the forest decrease as we ...
... passes the reasonability test -- for example, we would expect to find more species in a state than we find in any one county in that state. Does this species-area relationship work in reverse? That is to say, if the area of a forest is reduced, does the number of species in the forest decrease as we ...
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.