BIODIVERSITY-ECOSYSTEM FUNCTION RESEARCH
... very differently in different contexts. High productivity is often not desired in lake management but would be when managing a forest for carbon credits. In a purely scientific endeavor, the issue can be sidestepped by simply asking how ecosystemlevel variables depend on biodiversity. However, any c ...
... very differently in different contexts. High productivity is often not desired in lake management but would be when managing a forest for carbon credits. In a purely scientific endeavor, the issue can be sidestepped by simply asking how ecosystemlevel variables depend on biodiversity. However, any c ...
Common Name: CHICKAMAUGA CRAYFISH Scientific Name
... mother, but stay close and will hold on to her for some time. Eventually they move off on their own. Crayfishes molt 6 or 7 times during their first year of life and most are probably able to reproduce by the end of that year. They molt once or twice a year for the remainder of their lives and live ...
... mother, but stay close and will hold on to her for some time. Eventually they move off on their own. Crayfishes molt 6 or 7 times during their first year of life and most are probably able to reproduce by the end of that year. They molt once or twice a year for the remainder of their lives and live ...
Sapo gigante (Rhinella marina)
... these toads have undergone a population explosion. They have established widespread ranges in these non-native areas and attain higher densities in Australia than they do in their native range (Lampo and De Leo 1998). This has caused much concern about the effects of B. marinus on native anuran spec ...
... these toads have undergone a population explosion. They have established widespread ranges in these non-native areas and attain higher densities in Australia than they do in their native range (Lampo and De Leo 1998). This has caused much concern about the effects of B. marinus on native anuran spec ...
Identifying refugia from climate change
... maximum temperatures have received less warming than warmer localities, and therefore microrefugia are expected to help protect the species that are most at risk in a warming climate (Ashcroft et al., 2009). In these cases, as warmer localities experience larger increases in temperature than cooler ...
... maximum temperatures have received less warming than warmer localities, and therefore microrefugia are expected to help protect the species that are most at risk in a warming climate (Ashcroft et al., 2009). In these cases, as warmer localities experience larger increases in temperature than cooler ...
FUNCTIONAL MATRIX: A Conceptual Framework for Predicting
... maintain high redox potentials by transporting oxygen from shoots to roots through aerenchyma (Marschner 1995). Salinity When water arrives at the root faster than it can be absorbed, soil evaporation can lead to accumulations of salt that are toxic to plants, particularly in regions with high rates ...
... maintain high redox potentials by transporting oxygen from shoots to roots through aerenchyma (Marschner 1995). Salinity When water arrives at the root faster than it can be absorbed, soil evaporation can lead to accumulations of salt that are toxic to plants, particularly in regions with high rates ...
Defining Biodiversity Assessing Biodiversity
... abstract characterization: the same habitat at different places may hold a different ...
... abstract characterization: the same habitat at different places may hold a different ...
Herbivory enhances the diversity of primary producers in pond
... Second, we imposed a “nutrient” treatment composed of a low nutrient supply rate mimicking mesotrophic pond conditions and a high nutrient supply rate mirroring eutrophic pond conditions. Third, in a “N:P ratio” treatment, we manipulated the relative supply ratios of nitrogen (N) to phosphorus (P) t ...
... Second, we imposed a “nutrient” treatment composed of a low nutrient supply rate mimicking mesotrophic pond conditions and a high nutrient supply rate mirroring eutrophic pond conditions. Third, in a “N:P ratio” treatment, we manipulated the relative supply ratios of nitrogen (N) to phosphorus (P) t ...
Chapter 10 - Government of New Brunswick
... tamarack. Cedar is a predominant species on the limestone-derived soils around Saint John and in isolated places farther west. The tolerant hardwood assemblage of yellow birch, sugar maple, and beech that thrives elsewhere in southern New Brunswick is rare here. These heat-loving species prefer well ...
... tamarack. Cedar is a predominant species on the limestone-derived soils around Saint John and in isolated places farther west. The tolerant hardwood assemblage of yellow birch, sugar maple, and beech that thrives elsewhere in southern New Brunswick is rare here. These heat-loving species prefer well ...
Document
... 7 were larger in mixed than in single species populations. Our data provide no support for 8 reproductive interference as a mechanism of competitive displacement and instead suggest 9 competitive exclusion of A. pallipes from refuges by P. leniusculus leading to differential 10 predation. We screene ...
... 7 were larger in mixed than in single species populations. Our data provide no support for 8 reproductive interference as a mechanism of competitive displacement and instead suggest 9 competitive exclusion of A. pallipes from refuges by P. leniusculus leading to differential 10 predation. We screene ...
Determining ancient woodland indicator plants for practical use: A
... vascular plant species, termed ‘‘ancient woodland indicator plants‘‘, can be used to recognise the continuity of woodland cover. Ancient woodland habitats frequently contain a typical and rich forest biodiversity and can often be regarded as ‘‘biodiversity hotspots’’. To pinpoint these habitats for ...
... vascular plant species, termed ‘‘ancient woodland indicator plants‘‘, can be used to recognise the continuity of woodland cover. Ancient woodland habitats frequently contain a typical and rich forest biodiversity and can often be regarded as ‘‘biodiversity hotspots’’. To pinpoint these habitats for ...
INFORMING THE RESTORATION OF PIEDMONT SAVANNA USING
... The presettlement southeastern US Piedmont landscape supported an apparent abundance of firemaintained landscapes, including Piedmont savannas. Fire suppression led to a decline of fireresponsive, sun-loving herbaceous plants that had persisted for thousands (or millions) of years. These plants are ...
... The presettlement southeastern US Piedmont landscape supported an apparent abundance of firemaintained landscapes, including Piedmont savannas. Fire suppression led to a decline of fireresponsive, sun-loving herbaceous plants that had persisted for thousands (or millions) of years. These plants are ...
Hunting-induced defaunation drives increased seed predation and
... To evaluate the strength of seed predation in relation to the degree of defaunation, we developed an index of defaunation for our sites. From the wildlife data collected along transects, Koerner et al. (2016) calculated mammal species richness, evenness, and Shannon-Weiner diversity values for each ...
... To evaluate the strength of seed predation in relation to the degree of defaunation, we developed an index of defaunation for our sites. From the wildlife data collected along transects, Koerner et al. (2016) calculated mammal species richness, evenness, and Shannon-Weiner diversity values for each ...
Author`s personal copy
... This article introduces a Special Issue on biodiversity of Palaearctic grasslands and provides a synthesis of the current knowledge on this topic. Four major categories of grasslands can be distinguished in the Palaearctic biogeographic realm: (a) zonal steppes (in areas too dry for forests), (b) ar ...
... This article introduces a Special Issue on biodiversity of Palaearctic grasslands and provides a synthesis of the current knowledge on this topic. Four major categories of grasslands can be distinguished in the Palaearctic biogeographic realm: (a) zonal steppes (in areas too dry for forests), (b) ar ...
The Genotypic View of Social Interactions in Microbial Communities
... converse: Competition should prevail between different genotypes, be these different strains with a recent common ancestor (Figure 2a) or phylogenetically distant species. However, this prediction comes with the implicit assumption that interacting genotypes are competing for resources, which may no ...
... converse: Competition should prevail between different genotypes, be these different strains with a recent common ancestor (Figure 2a) or phylogenetically distant species. However, this prediction comes with the implicit assumption that interacting genotypes are competing for resources, which may no ...
Modelling the distribution and interaction of introduced rodents on
... The distribution of any species is limited by environmental factors. Hutchinson (1957) developed the concept of the ‘ecological niche’ — a multidimensional abstract representation of a species’ environment in which it is limited at particular upper and lower boundaries for every environmental factor ...
... The distribution of any species is limited by environmental factors. Hutchinson (1957) developed the concept of the ‘ecological niche’ — a multidimensional abstract representation of a species’ environment in which it is limited at particular upper and lower boundaries for every environmental factor ...
Wetlands and reedbeds - Freshwater Habitats Trust
... It is not possible to be prescriptive about pond sizes in wetlands and reedbeds, as ponds of all sizes and shapes will work. But there are a number of issues which are worth considering. Create a complex of ponds of different shapes and sizes. This will maximise the wildlife potential of the site ...
... It is not possible to be prescriptive about pond sizes in wetlands and reedbeds, as ponds of all sizes and shapes will work. But there are a number of issues which are worth considering. Create a complex of ponds of different shapes and sizes. This will maximise the wildlife potential of the site ...
Guidelines for Prevention and Management
... information was available – 39% were introduced by hull-fouling, 31% via ballast water, and the remainder by both. A study on ship-related vectors of introduction into the North Sea between 1992 and 1996 found that samples of hull-fouling, taken from 186 commercial vessels visiting German ports, had ...
... information was available – 39% were introduced by hull-fouling, 31% via ballast water, and the remainder by both. A study on ship-related vectors of introduction into the North Sea between 1992 and 1996 found that samples of hull-fouling, taken from 186 commercial vessels visiting German ports, had ...
stability of terrestrial ecosystems as to pest organisms
... Thus, the EE of defoliators of the bud-mining and web-making defoliators of the larch on the level ESPPs 3.1. "Proper control" provides Insignificant or Low densities of density-independent pattern with characteristics Common, Potent, The best. 6.4.10. Life strategy: Consumers of seeds having no per ...
... Thus, the EE of defoliators of the bud-mining and web-making defoliators of the larch on the level ESPPs 3.1. "Proper control" provides Insignificant or Low densities of density-independent pattern with characteristics Common, Potent, The best. 6.4.10. Life strategy: Consumers of seeds having no per ...
Lesson Plan - Limnological Research Center
... There are estimated to be over 300 million species of diatoms in the world! We are still discovering several new species every year. Some species are believe to be found everywhere in the world; these are ubiquitous or cosmopolitan species. Other species are only found in one region or even one lake ...
... There are estimated to be over 300 million species of diatoms in the world! We are still discovering several new species every year. Some species are believe to be found everywhere in the world; these are ubiquitous or cosmopolitan species. Other species are only found in one region or even one lake ...
Rove Beetles of Florida, Staphylinidae - EDIS
... Credits: E. R. Van Tassell, Michigan State University ...
... Credits: E. R. Van Tassell, Michigan State University ...
Biogeomorphic Impacts of Invasive Species
... In general, invasive species can impact one or a combination of ecological, ecosystem, and geomorphological processes (Figure 1). Changes in ecological processes can alter population and community structure; changes in ecosystem processes can lead to the shift of trophic levels and pool sizes; and c ...
... In general, invasive species can impact one or a combination of ecological, ecosystem, and geomorphological processes (Figure 1). Changes in ecological processes can alter population and community structure; changes in ecosystem processes can lead to the shift of trophic levels and pool sizes; and c ...
Effect of abiotic factors on reproduction in the centre and periphery
... Variables such as weather or other abiotic factors should have a higher influence on demographic rates in border areas than in central areas, given that climatic adaptation might be important in determining range borders. Similarly, for a given area, the relationship between weather and reproduction ...
... Variables such as weather or other abiotic factors should have a higher influence on demographic rates in border areas than in central areas, given that climatic adaptation might be important in determining range borders. Similarly, for a given area, the relationship between weather and reproduction ...
Journal of Experimental Marine Biology and Ecology
... merely with its presence as any new organism added to the resident community; thus its impact may be derived through its density, size, fitness, or longevity (attributes that are relevant to measure for all invasions). In the first example, the organism's genetic identity is important (only the lionfis ...
... merely with its presence as any new organism added to the resident community; thus its impact may be derived through its density, size, fitness, or longevity (attributes that are relevant to measure for all invasions). In the first example, the organism's genetic identity is important (only the lionfis ...
barn owl (tyto alba) diet composition on intensively used agricultural
... Bernard et al. (2010) recorded an increased consumption of genus Sorex during the period when the Common Vole’s population was declining. There are many other factors that can influence selective and opportunistic hunting behaviour of Barn Owls, such as prey size, time of the year and the antipredat ...
... Bernard et al. (2010) recorded an increased consumption of genus Sorex during the period when the Common Vole’s population was declining. There are many other factors that can influence selective and opportunistic hunting behaviour of Barn Owls, such as prey size, time of the year and the antipredat ...
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.