Invisible invaders: non-pathogenic invasive microbes in aquatic and
... and viral, communities. Molecular fingerprinting methods, such as DGGE (denaturing gradient gel electrophoresis), T-RFLP (terminal restriction fragment length polymorphisms) and ARISA (automated ribosomal intergenic spacer analysis), enable establishing community profiles, and the phylogenetic affil ...
... and viral, communities. Molecular fingerprinting methods, such as DGGE (denaturing gradient gel electrophoresis), T-RFLP (terminal restriction fragment length polymorphisms) and ARISA (automated ribosomal intergenic spacer analysis), enable establishing community profiles, and the phylogenetic affil ...
The interplay of physical and biotic factors in
... differ on how larval dispersal operates within a hierarchical framework. This is unimportant for the present discussion, so I will simply note that marine species achieve broad geographic ranges and high rates of gene flow by several mechanisms besides larval dispersal (e.g. rafting of bryozoans, Wa ...
... differ on how larval dispersal operates within a hierarchical framework. This is unimportant for the present discussion, so I will simply note that marine species achieve broad geographic ranges and high rates of gene flow by several mechanisms besides larval dispersal (e.g. rafting of bryozoans, Wa ...
Restoration Ecology: Interventionist Approaches for - LERF
... different system components will return, and how possible it is to recreate past ecosystems. Moving beyond these myths is a key element of developing more successful restoration strategies. Ideas from succession theory and ecosystem assembly can be useful in this context (31, 32), and allowing norma ...
... different system components will return, and how possible it is to recreate past ecosystems. Moving beyond these myths is a key element of developing more successful restoration strategies. Ideas from succession theory and ecosystem assembly can be useful in this context (31, 32), and allowing norma ...
Understanding Mutualism When There is Adaptation to the Partner
... opinions expressed herein do not necessarily represent those of the Institute, its National Member Organizations, or other organizations supporting the work. All rights reserved. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fe ...
... opinions expressed herein do not necessarily represent those of the Institute, its National Member Organizations, or other organizations supporting the work. All rights reserved. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fe ...
Wolverine (Gulo gulo) - Registre public des espèces en péril
... Reason for designation Estimated total population size exceeds 13,000 mature individuals. Declines have been reported in Alberta and parts of British Columbia and Ontario. A distinct subspecies may be extirpated from Vancouver Island. Many pelts used locally are not included in official statistics, ...
... Reason for designation Estimated total population size exceeds 13,000 mature individuals. Declines have been reported in Alberta and parts of British Columbia and Ontario. A distinct subspecies may be extirpated from Vancouver Island. Many pelts used locally are not included in official statistics, ...
International Journal of Antimicrobial Agents Mechanism of drug
... pathogen is limited because the enteritis caused by this organism is not as frequent as that caused by Vibrio cholerae [5]. However, in recent years it is being isolated with greater frequency from patients with cholera-like illness, many of which display multiple drug resistance [5–8]. There are se ...
... pathogen is limited because the enteritis caused by this organism is not as frequent as that caused by Vibrio cholerae [5]. However, in recent years it is being isolated with greater frequency from patients with cholera-like illness, many of which display multiple drug resistance [5–8]. There are se ...
Indirect interactions and plant community structure
... competition, or the “competitive exclusion principle” (Hardin 1960), might be avoided (Chesson 2000). This theory can be most simply organized into three categories: 1) avoidance of competition through spatial or temporal niche partitioning (Hutchinson 1959, MacArthur and Levins 1964, 1967, Warner a ...
... competition, or the “competitive exclusion principle” (Hardin 1960), might be avoided (Chesson 2000). This theory can be most simply organized into three categories: 1) avoidance of competition through spatial or temporal niche partitioning (Hutchinson 1959, MacArthur and Levins 1964, 1967, Warner a ...
Tactical reproductive parasitism via larval cannibalism
... pools and strongly avoid the pools containing predators and heterospecific competitors (Brown et al. 2008b). Our experiments revealed that D. variabilis males prefer pools with unrelated eggs and actively deposit their tadpoles within these pools. This provides an unusual example of tactical reprodu ...
... pools and strongly avoid the pools containing predators and heterospecific competitors (Brown et al. 2008b). Our experiments revealed that D. variabilis males prefer pools with unrelated eggs and actively deposit their tadpoles within these pools. This provides an unusual example of tactical reprodu ...
generalist feeding behaviors of aedes sierrensis larvae and their
... Erionellidae, Discocephalidae, Tetrahymenidae, Chilodonellidae, Colpodidae (Washburn and Gross, unpublished data). Many species of the protozoa in these families and the rotifers from California tree holes are 50–250 !m in length, a size range that coincides with waterborne particles ingested by fil ...
... Erionellidae, Discocephalidae, Tetrahymenidae, Chilodonellidae, Colpodidae (Washburn and Gross, unpublished data). Many species of the protozoa in these families and the rotifers from California tree holes are 50–250 !m in length, a size range that coincides with waterborne particles ingested by fil ...
interspecific competition alters nonlinear selection on offspring size
... the length of the larval period (Marshall and Keough 2004), such that offspring size can be reliably inferred from measurements of newly settled juveniles. Zooid size Zooid size is an important morphological trait in bryozoans as it can affect a range of life-history parameters in modular organisms ...
... the length of the larval period (Marshall and Keough 2004), such that offspring size can be reliably inferred from measurements of newly settled juveniles. Zooid size Zooid size is an important morphological trait in bryozoans as it can affect a range of life-history parameters in modular organisms ...
How variation between individuals affects species coexistence
... of the demographic rates and interactions of individuals. Consequently, solving important problems in ecology requires understanding how processes operating at the level of individuals translate into population and community dynamics. Nonetheless, attempts to understand one of the central problems i ...
... of the demographic rates and interactions of individuals. Consequently, solving important problems in ecology requires understanding how processes operating at the level of individuals translate into population and community dynamics. Nonetheless, attempts to understand one of the central problems i ...
Translocation of Threatened Tiger Beetle Cicindela dorsalis dorsalis
... population had been extirpated. Two adjacent beaches at Gateway (North Beach and Gunnison Beach) were selected. Both had relatively low levels of human use because they were away from beach access points and were closed to the public from April through September to protect piping plovers, Charadrius ...
... population had been extirpated. Two adjacent beaches at Gateway (North Beach and Gunnison Beach) were selected. Both had relatively low levels of human use because they were away from beach access points and were closed to the public from April through September to protect piping plovers, Charadrius ...
Using stable isotopes of nitrogen and carbon to study - ICM-CSIC
... period of the year because they spend most of their time offshore. Stable isotope analyses of feathers sampled on the breeding grounds offers an alternative means of studying diet and foraging areas during the non-breeding period. Because some ocean areas differ in the isotopic signature of foodweb ...
... period of the year because they spend most of their time offshore. Stable isotope analyses of feathers sampled on the breeding grounds offers an alternative means of studying diet and foraging areas during the non-breeding period. Because some ocean areas differ in the isotopic signature of foodweb ...
Sequence - BIOTEC - Biotechnology Center TU Dresden
... 1. Given a sequence (fragment), find sequences in the database that are similar to it 2. Given a protein structure (or fragment), find protein structures in the database that are similar to it 3. Given sequence of a protein of unknown structure, find structures in the database that adopt simil ...
... 1. Given a sequence (fragment), find sequences in the database that are similar to it 2. Given a protein structure (or fragment), find protein structures in the database that are similar to it 3. Given sequence of a protein of unknown structure, find structures in the database that adopt simil ...
diversity, ecosystem function, and stability of parasitoid
... normality and homogeneity of variances. They were analyzed in three GLMs with backward stepwise elimination and habitat type as a fixed factor. A Bonferroni corrected a of 0.01667 was used in all three models. The first model included host and parasitoid species richness as continuous predictors. Beca ...
... normality and homogeneity of variances. They were analyzed in three GLMs with backward stepwise elimination and habitat type as a fixed factor. A Bonferroni corrected a of 0.01667 was used in all three models. The first model included host and parasitoid species richness as continuous predictors. Beca ...
Environmental context determines multi-trophic effects of consumer species loss
... assemblages of species, which limits potential applicability of such findings for natural ecosystems, where species loss is not random (Srivastava & Vellend, 2005; Bracken et al., 2008). One of the few studies that attempted to mimic realistic non-random species loss in nature found that even the ra ...
... assemblages of species, which limits potential applicability of such findings for natural ecosystems, where species loss is not random (Srivastava & Vellend, 2005; Bracken et al., 2008). One of the few studies that attempted to mimic realistic non-random species loss in nature found that even the ra ...
The Jamaican Iguana Pilot Final Report
... control in the core iguana conservation zone, and (2) the release of captive-reared, ‘head-started’ iguanas. The project’s primary field intervention is the continuous operation of an invasive predator trapping grid in the core iguana conservation zone. This mongoose-focused effort was expanded to i ...
... control in the core iguana conservation zone, and (2) the release of captive-reared, ‘head-started’ iguanas. The project’s primary field intervention is the continuous operation of an invasive predator trapping grid in the core iguana conservation zone. This mongoose-focused effort was expanded to i ...
Shorthead Sculpin (Cottus confusus)
... In Canada, it only occurs in the Columbia River and its tributaries in south-central British Columbia (BC). The Shorthead Sculpin was last reviewed in 2001 (COSEWIC 2001) and is included in the SARA Schedule 1 list as Threatened. The report that follows is the second assessment under the revised cri ...
... In Canada, it only occurs in the Columbia River and its tributaries in south-central British Columbia (BC). The Shorthead Sculpin was last reviewed in 2001 (COSEWIC 2001) and is included in the SARA Schedule 1 list as Threatened. The report that follows is the second assessment under the revised cri ...
Fungal denitrification and nitric oxide reductase cytochrome P450nor
... The nitrogen cycle performed by micro-organisms comprises three processes; nitrogen fixation, nitrification and denitrification. The cycle is very important for life and global environment, providing nitrogen to life as nutrition and maintaining homeostasis of the Earth. Denitrification is the rever ...
... The nitrogen cycle performed by micro-organisms comprises three processes; nitrogen fixation, nitrification and denitrification. The cycle is very important for life and global environment, providing nitrogen to life as nutrition and maintaining homeostasis of the Earth. Denitrification is the rever ...
Weed Ecology in Natural and Agricultural Systems
... that, by providing examples of how these concepts are useful in real situations, the importance of ecological theory will become apparent. If we can convince one of you to pick up one of those large, intimidating tomes, then we will have succeeded. While the focus of this book will be the use of eco ...
... that, by providing examples of how these concepts are useful in real situations, the importance of ecological theory will become apparent. If we can convince one of you to pick up one of those large, intimidating tomes, then we will have succeeded. While the focus of this book will be the use of eco ...
TRY – a global database of plant traits
... Plant traits – the morphological, anatomical, physiological, biochemical and phenological characteristics of plants and their organs – determine how primary producers respond to environmental factors, affect other trophic levels, influence ecosystem processes and services and provide a link from spe ...
... Plant traits – the morphological, anatomical, physiological, biochemical and phenological characteristics of plants and their organs – determine how primary producers respond to environmental factors, affect other trophic levels, influence ecosystem processes and services and provide a link from spe ...
toward an ecological classification of soil bacteria
... range of ecosystems across North America and looked for relationships between soil properties and the relative abundances of six dominant bacterial phyla (Acidobacteria, Bacteroidetes, Firmicutes, Actinobacteria, a-Proteobacteria, and the b-Proteobacteria). Of the soil properties measured, net carbo ...
... range of ecosystems across North America and looked for relationships between soil properties and the relative abundances of six dominant bacterial phyla (Acidobacteria, Bacteroidetes, Firmicutes, Actinobacteria, a-Proteobacteria, and the b-Proteobacteria). Of the soil properties measured, net carbo ...
Nutrient enrichment homogenizes lake benthic assemblages at local and regional scales I D
... nutrient-rich than nutrient-poor lakes, while there was no effect of water column alkalinity and no significant interaction between trophic status and alkalinity. Further, the relative variability of the distances among lakes was not affected by trophic status (Appendix C). Asellus aquaticus, Gammaru ...
... nutrient-rich than nutrient-poor lakes, while there was no effect of water column alkalinity and no significant interaction between trophic status and alkalinity. Further, the relative variability of the distances among lakes was not affected by trophic status (Appendix C). Asellus aquaticus, Gammaru ...