Genetically engineered organisms and the environment: Current
... disperse outdoors under variable biotic and abiotic conditions is a major challenge. Phenotypic characteristics, such as an organism’s size, health, and reproductive capacity, are determined by complex interactions among its genes and its surroundings. It is important to ask how the phenotypes of tr ...
... disperse outdoors under variable biotic and abiotic conditions is a major challenge. Phenotypic characteristics, such as an organism’s size, health, and reproductive capacity, are determined by complex interactions among its genes and its surroundings. It is important to ask how the phenotypes of tr ...
Identification of Species and Habitats that Support Commercial
... fisheries, we describe common characteristics of species fulfilling each role and provide a few examples of such species. We also discuss vulnerability to perturbation and the most common types of human-induced perturbations that will affect support species. For each function, we provide guidance on ...
... fisheries, we describe common characteristics of species fulfilling each role and provide a few examples of such species. We also discuss vulnerability to perturbation and the most common types of human-induced perturbations that will affect support species. For each function, we provide guidance on ...
Experimental evaluation of evolution and coevolution
... (Post et al. 2008). This bidirectionality suggests that ...
... (Post et al. 2008). This bidirectionality suggests that ...
The influence of landscape heterogeneity on amphibian
... utilize different environments during their lifetime. In this study we want to investigate whether there is a relationship between landscape heterogeneity (land cover diversity and altitude standard deviation) and the spatial variation of amphibian species richness and its relative influence in comp ...
... utilize different environments during their lifetime. In this study we want to investigate whether there is a relationship between landscape heterogeneity (land cover diversity and altitude standard deviation) and the spatial variation of amphibian species richness and its relative influence in comp ...
CANADIAN BIOSPHERE RESERVES AND SOCIAL INNOVATIONS
... to the conservation of ecosystems, and to what are now called “ecological goods and services”, had to be taken in order to incorporate issues of human livelihoods and community well-being into sustainable uses of landscapes. A contrast was sometimes drawn between this and the approach driven by the ...
... to the conservation of ecosystems, and to what are now called “ecological goods and services”, had to be taken in order to incorporate issues of human livelihoods and community well-being into sustainable uses of landscapes. A contrast was sometimes drawn between this and the approach driven by the ...
cedarcreek.umn.edu - Wiley Online Library
... June, when most plants were just beginning to flower, we measured rosette diameter and visually estimated the proportion of leaf area damaged by herbivores. We harvested all plants after fruits on the main stem had matured and plants senesced (between 4 July and 21 July). After harvest, we recorded ...
... June, when most plants were just beginning to flower, we measured rosette diameter and visually estimated the proportion of leaf area damaged by herbivores. We harvested all plants after fruits on the main stem had matured and plants senesced (between 4 July and 21 July). After harvest, we recorded ...
secondary succession
... circumstances in which a small number of species tends to replace each other over time • A classic example involves heather (Calluna) and the bracken fern (Pteridium). Calluna can invade stands of Pteridium under some situations. However, as the Calluna plants age and senesce, they can be replaced b ...
... circumstances in which a small number of species tends to replace each other over time • A classic example involves heather (Calluna) and the bracken fern (Pteridium). Calluna can invade stands of Pteridium under some situations. However, as the Calluna plants age and senesce, they can be replaced b ...
Rangeland dynamics - Sound and Light Ecology Team
... urban areas and among exurban development face potentially negative impacts associated with land use change and human population growth in surrounding areas. In addition to direct habitat loss and fragmentation, the native plant communities of these habitats can be substantially altered as a result ...
... urban areas and among exurban development face potentially negative impacts associated with land use change and human population growth in surrounding areas. In addition to direct habitat loss and fragmentation, the native plant communities of these habitats can be substantially altered as a result ...
Habitat alteration and community-level effects of an exotic mussel
... 1982, Brenchley & Carlton 1983) and predation (e.g Grosholz & Ruiz 1995).Fewer studies have examined if and how estuarine exotics can alter the physical nature of ecosystems. However, there is limited evidence that resident assemblages can be changed by invasive ecosystem engineers, for example, thr ...
... 1982, Brenchley & Carlton 1983) and predation (e.g Grosholz & Ruiz 1995).Fewer studies have examined if and how estuarine exotics can alter the physical nature of ecosystems. However, there is limited evidence that resident assemblages can be changed by invasive ecosystem engineers, for example, thr ...
Biodiversity and Ecosystem Services in Agroecosystems
... processes of soil formation, structural development (including physical, chemical, and biological properties of soil), and nutrient cycling mediated by biotic and abiotic factors to support plant growth. These soil characteristics are important determinants of the quantity and quality of farming out ...
... processes of soil formation, structural development (including physical, chemical, and biological properties of soil), and nutrient cycling mediated by biotic and abiotic factors to support plant growth. These soil characteristics are important determinants of the quantity and quality of farming out ...
Effects of leaf litter depth on the emergence and seedling growth of
... depth on the emergence and seedling growth of deciduous forest tree species in relation to seed size. J. Torrey Bot. Soc. 132: 50–61. 2005.—Leaf litter has a major impact on soil microenvironmental conditions and so can be an important influence on seedling recruitment and hence plant community stru ...
... depth on the emergence and seedling growth of deciduous forest tree species in relation to seed size. J. Torrey Bot. Soc. 132: 50–61. 2005.—Leaf litter has a major impact on soil microenvironmental conditions and so can be an important influence on seedling recruitment and hence plant community stru ...
Bottom-Up and Top-Down Interactions across Aquatic
... ecosystems (Menge, 2000). These may result from consumption, consistent with the mathematical foundation of classic food chain models, or through nonconsumptive effects whereby prey behavior or traits are altered by limiting foraging excursions or inducing the production of defensive structures or c ...
... ecosystems (Menge, 2000). These may result from consumption, consistent with the mathematical foundation of classic food chain models, or through nonconsumptive effects whereby prey behavior or traits are altered by limiting foraging excursions or inducing the production of defensive structures or c ...
Seedling–herbivore interactions: insights into
... still have a relatively poor understanding about how seedlings defend themselves against herbivores, and this is particularly true for seedlings in the strict sense, including only plants that are still dependent on stored reserves (usually the cotyledon) for early nutrition (Hanley et al., 2004). T ...
... still have a relatively poor understanding about how seedlings defend themselves against herbivores, and this is particularly true for seedlings in the strict sense, including only plants that are still dependent on stored reserves (usually the cotyledon) for early nutrition (Hanley et al., 2004). T ...
Curriculum Vitae
... NSF DEB-1457697, “Predation, competition, and establishment dynamics within an insular adaptive radiation” (PI) NSF DEB-1355122, “Causes and consequences of regular spatial patterning in foundation species: theoretical development and experimental tests in an African savanna” (co-PI) NSF DDIG DEB-15 ...
... NSF DEB-1457697, “Predation, competition, and establishment dynamics within an insular adaptive radiation” (PI) NSF DEB-1355122, “Causes and consequences of regular spatial patterning in foundation species: theoretical development and experimental tests in an African savanna” (co-PI) NSF DDIG DEB-15 ...
HABITAT COMPLEXITY INFLUENCES CASCADING EFFECTS OF MULTIPLE PREDATORS J H. G
... to improve our understanding of how trophic cascades, a central focus in community ecology, operate in natural systems. Greater understanding of these interactions is especially necessary given that human impacts historically have been greatest on higher trophic levels and that extensive degradation ...
... to improve our understanding of how trophic cascades, a central focus in community ecology, operate in natural systems. Greater understanding of these interactions is especially necessary given that human impacts historically have been greatest on higher trophic levels and that extensive degradation ...
Southern bell frog - draft recovery plan
... populations and ecological communities contributes to, and highlights the importance of conserving all biodiversity. The conservation of biodiversity has a number of wider community benefits. These include: ...
... populations and ecological communities contributes to, and highlights the importance of conserving all biodiversity. The conservation of biodiversity has a number of wider community benefits. These include: ...
frogs – conservation
... Australia has a fascinating and spectacular variety of frogs, over 210 of the world’s ~5,000 species. The majority of Australian frogs are unique due to Australia’s long isolation. The origin of Australia’s frog fauna can be traced back many millions of years when Australia formed part of a large la ...
... Australia has a fascinating and spectacular variety of frogs, over 210 of the world’s ~5,000 species. The majority of Australian frogs are unique due to Australia’s long isolation. The origin of Australia’s frog fauna can be traced back many millions of years when Australia formed part of a large la ...
RECOVERY PLAN FOR THE BERMUDA SKINK, Eumeces longirostris
... Bermuda skinks formerly occupied a broad range of habitats but are now found in small, fragmented areas within three types of coastal habitat (beach and dune, rocky coastal, and upland coastal). The total area of these habitats throughout Bermuda and the adjacent islets is 572 ha, of which less than ...
... Bermuda skinks formerly occupied a broad range of habitats but are now found in small, fragmented areas within three types of coastal habitat (beach and dune, rocky coastal, and upland coastal). The total area of these habitats throughout Bermuda and the adjacent islets is 572 ha, of which less than ...
Abstracts - Society For Range Management
... Topaz Solar Farms, located on the Carrizo Plain in California exemplifies a successful partnership between agriculture, habitat conservation, and energy production. This 4,700acre, 550-megawatt passive photo-voltaic solar farm is currently one of the largest solar projects in the world. Constructi ...
... Topaz Solar Farms, located on the Carrizo Plain in California exemplifies a successful partnership between agriculture, habitat conservation, and energy production. This 4,700acre, 550-megawatt passive photo-voltaic solar farm is currently one of the largest solar projects in the world. Constructi ...
Nutrient enrichment homogenizes lake benthic assemblages at local and regional scales I D
... 1). Further, these relationships were inverse in every case (Table 1, Fig. 1). Comparison of AICc values indicate that the model containing chlorophyll a, alkalinity, connectivity, and surface area best explained the data for littoral assemblage heterogeneity, whereas a model containing TN and surfa ...
... 1). Further, these relationships were inverse in every case (Table 1, Fig. 1). Comparison of AICc values indicate that the model containing chlorophyll a, alkalinity, connectivity, and surface area best explained the data for littoral assemblage heterogeneity, whereas a model containing TN and surfa ...
Climate Change and Alpine Vegetation Shifts on Mountaintop
... Research Initiative in Alpine Environments (GLORIA), medium-term changes in species diversity and composition of vascular plants, lichens and bryophytes were investigated on four study summits in the National Park of Dovrefjell, Norway. These four summits were situated along an elevational gradient ...
... Research Initiative in Alpine Environments (GLORIA), medium-term changes in species diversity and composition of vascular plants, lichens and bryophytes were investigated on four study summits in the National Park of Dovrefjell, Norway. These four summits were situated along an elevational gradient ...
pdf. - Robert Colwell
... inferences about the number of colours (species) in the entire jar. This process of statistical inference depends critically on the biological assumption that the community is ‘closed,’ with an unchanging total number of species and a steady species abundance distribution. Jellybeans may be added or ...
... inferences about the number of colours (species) in the entire jar. This process of statistical inference depends critically on the biological assumption that the community is ‘closed,’ with an unchanging total number of species and a steady species abundance distribution. Jellybeans may be added or ...
- Wiley Online Library
... & Schmitz 2010b) for grasshoppers under stress from spider predators. Vertical habitat structure was naturally divided into two habitat types: the lower half was dominated by grasses, short herbs and S. rugosa bare stalks and the upper half consisted of S. rugosa stalks and leaves. A grid was drawn ...
... & Schmitz 2010b) for grasshoppers under stress from spider predators. Vertical habitat structure was naturally divided into two habitat types: the lower half was dominated by grasses, short herbs and S. rugosa bare stalks and the upper half consisted of S. rugosa stalks and leaves. A grid was drawn ...
Biological Diversity - FIU Faculty Websites
... inferences about the number of colours (species) in the entire jar. This process of statistical inference depends critically on the biological assumption that the community is ‘closed,’ with an unchanging total number of species and a steady species abundance distribution. Jellybeans may be added or ...
... inferences about the number of colours (species) in the entire jar. This process of statistical inference depends critically on the biological assumption that the community is ‘closed,’ with an unchanging total number of species and a steady species abundance distribution. Jellybeans may be added or ...
habitat management guidelines for amphibians and
... Landowners and resource managers have multiple goals and objectives for managing their lands. Partners in Amphibian and Reptile Conservation (PARC) also recognizes that, depending on land management objectives, not all of the recommendations in these Guidelines will be feasible. Nevertheless, knowle ...
... Landowners and resource managers have multiple goals and objectives for managing their lands. Partners in Amphibian and Reptile Conservation (PARC) also recognizes that, depending on land management objectives, not all of the recommendations in these Guidelines will be feasible. Nevertheless, knowle ...
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.