Migratory Animals Couple Biodiversity and Ecosystem Functioning
... *Corresponding author. E-mail: [email protected] ...
... *Corresponding author. E-mail: [email protected] ...
foraging ecology of the red-crowned parakeet
... plants examined; (2) present only small amounts (ones - tens) of a given food type present on scattered individual plants; (3) common food type widespread (hundreds thousands) and available on the majority of plants but not abundant; (4) abundant large amounts (tens of thousands) of a given food typ ...
... plants examined; (2) present only small amounts (ones - tens) of a given food type present on scattered individual plants; (3) common food type widespread (hundreds thousands) and available on the majority of plants but not abundant; (4) abundant large amounts (tens of thousands) of a given food typ ...
Endophytic fungi alter relationships between diversity and
... probability of including a species with a strong effect on the community and complementarity effects, in which the addition of greater phenotypic diversity to species assemblages enhances resource utilization and fills ecological niches (Wardle 1999; Loreau et al. 2001). Integrating the results from ...
... probability of including a species with a strong effect on the community and complementarity effects, in which the addition of greater phenotypic diversity to species assemblages enhances resource utilization and fills ecological niches (Wardle 1999; Loreau et al. 2001). Integrating the results from ...
Consumer versus resource control of producer producer community structure
... analyze the bivariate relationships of continuous covariates with effect sizes. Second, we identified the most parsimonious general linear model (hereafter GLM) using all continuous covariates and ecosystem type as predictor variables. Thus, we compared the bivariate MA approach using the full data ...
... analyze the bivariate relationships of continuous covariates with effect sizes. Second, we identified the most parsimonious general linear model (hereafter GLM) using all continuous covariates and ecosystem type as predictor variables. Thus, we compared the bivariate MA approach using the full data ...
REV_ISS_WEB_JPE_12709_53-6 1823..1830
... counts and true zeros (binomial distribution and logit link), are modelled separately (Zuur et al. 2009). Zero-inflated Poisson models are appropriate when over-dispersion in count data is caused by an excessive number of zeroes. To reduce part of the zero inflation, we summed population densities b ...
... counts and true zeros (binomial distribution and logit link), are modelled separately (Zuur et al. 2009). Zero-inflated Poisson models are appropriate when over-dispersion in count data is caused by an excessive number of zeroes. To reduce part of the zero inflation, we summed population densities b ...
Weakfish – Full Species Report
... Points of Adjustment (multiple selections allowed) -0.25 The population is declining over a generational time scale (as indicated by biomass estimates or standardized CPUE). Age-1 Weakfish abundances from one model (index-based) used in the latest population assessment varied considerably from 1981 ...
... Points of Adjustment (multiple selections allowed) -0.25 The population is declining over a generational time scale (as indicated by biomass estimates or standardized CPUE). Age-1 Weakfish abundances from one model (index-based) used in the latest population assessment varied considerably from 1981 ...
Theoretical Predictions for How Temperature Affects
... changes in body size may occur with temperature (Daufresne et al. 2010; Atkinson 1994), there is no consistent pattern or theoretical prediction for this phenomenon that facilitates its inclusion in our model. Nonetheless, body size could easily be included in this framework by developing size class ...
... changes in body size may occur with temperature (Daufresne et al. 2010; Atkinson 1994), there is no consistent pattern or theoretical prediction for this phenomenon that facilitates its inclusion in our model. Nonetheless, body size could easily be included in this framework by developing size class ...
Exemplar for Internal Achievement Standard Biology Level 2
... themselves and the water inside the shells, to keep the gills moist at low tide. The gills do two jobs – take in oxygen and filter out fine food particles like diatoms (phytoplankton). Tiny hairs wave the water containing oxygen and direct these food particles towards the mouth. Cockles are filter f ...
... themselves and the water inside the shells, to keep the gills moist at low tide. The gills do two jobs – take in oxygen and filter out fine food particles like diatoms (phytoplankton). Tiny hairs wave the water containing oxygen and direct these food particles towards the mouth. Cockles are filter f ...
Assessing the ecological significance of linkage and connectivity for
... As urbanisation continues to fragment and degrade habitats there is a need to ensure that cities are managed to sustain ecosystem function and high biodiversity. Ecological theories suggest that areas with higher levels of functional connectivity sustain a more diverse avian population. By identifyi ...
... As urbanisation continues to fragment and degrade habitats there is a need to ensure that cities are managed to sustain ecosystem function and high biodiversity. Ecological theories suggest that areas with higher levels of functional connectivity sustain a more diverse avian population. By identifyi ...
Large, natural blocks of mature woodland habitat within
... exceptions criteria for ecoregional SWH which will be identified at an ecodistrict scaleccxvi. Exceptions occur when criteria for a specific habitat are different within an ecodistrict compared to the remainder of an ecoregion or if a habitat only occurs within a restricted area of the ecoregion. Th ...
... exceptions criteria for ecoregional SWH which will be identified at an ecodistrict scaleccxvi. Exceptions occur when criteria for a specific habitat are different within an ecodistrict compared to the remainder of an ecoregion or if a habitat only occurs within a restricted area of the ecoregion. Th ...
Effects of elevated CO2, nitrogen deposition, and decreased species
... Three components of global change, elevated CO2 , nitrogen addition, and decreased plant species richness (`diversity'), increased the percent leaf area infected by fungi (pathogen load) for much to all of the plant community in one year of a factorial grassland experiment. Decreased plant diversity ...
... Three components of global change, elevated CO2 , nitrogen addition, and decreased plant species richness (`diversity'), increased the percent leaf area infected by fungi (pathogen load) for much to all of the plant community in one year of a factorial grassland experiment. Decreased plant diversity ...
High Reproductive Rates Result in High Predation Risks: A
... (e.g., Hanski and Gilpin 1997; Tilman and Kareiva 1997). Spatially finite dispersal and interactions alter and are influenced by the distribution patterns of interacting organisms. Such feedback between spatial distribution patterns and the intensity of biological interactions can potentially determ ...
... (e.g., Hanski and Gilpin 1997; Tilman and Kareiva 1997). Spatially finite dispersal and interactions alter and are influenced by the distribution patterns of interacting organisms. Such feedback between spatial distribution patterns and the intensity of biological interactions can potentially determ ...
Climate and Species Richness Predict the Phylogenetic Structure of
... shrublands, etc.). Although a direct test of the relationship between habitat type and community structure was not performed, there was variation in the phylogenetic structure of carnivore assemblages across biomes. In addition, a recent paper by Cantalapiedra et al. [20] found that a global distrib ...
... shrublands, etc.). Although a direct test of the relationship between habitat type and community structure was not performed, there was variation in the phylogenetic structure of carnivore assemblages across biomes. In addition, a recent paper by Cantalapiedra et al. [20] found that a global distrib ...
Nutrient resorption of wetland graminoids is related to the type of
... across all plots were always closely similar to those across unfertilized plots, so that results were not affected by including fertilized plots. For C. acutiformis, the only species sampled in both countries, means for Swiss and Dutch sites were calculated separately. (3) Intraspecific correlations ...
... across all plots were always closely similar to those across unfertilized plots, so that results were not affected by including fertilized plots. For C. acutiformis, the only species sampled in both countries, means for Swiss and Dutch sites were calculated separately. (3) Intraspecific correlations ...
Impact of pocket gopher disturbance on plant species diversity in a
... (light, nutrients, water) than those in undisturbed habitat. This increased resource availability p r o b a b l y accounts for the significantly higher growth rates. Both Ipomopsis aggregata and Penstemon barbatus were m o r e likely to flower when they were growing in disturbed habitat. L aggregata ...
... (light, nutrients, water) than those in undisturbed habitat. This increased resource availability p r o b a b l y accounts for the significantly higher growth rates. Both Ipomopsis aggregata and Penstemon barbatus were m o r e likely to flower when they were growing in disturbed habitat. L aggregata ...
changing competitive advantage Lethal effects of habitat
... can be profound, and are well documented for a broad range of ecosystems [7– 9]; however, the underlying mechanisms of change are often unknown. The interactions between organisms that share key resources can strongly influence growth, life-history characteristics, mortality and therefore species ab ...
... can be profound, and are well documented for a broad range of ecosystems [7– 9]; however, the underlying mechanisms of change are often unknown. The interactions between organisms that share key resources can strongly influence growth, life-history characteristics, mortality and therefore species ab ...
Fragoso 2005 Trophic strucure tropics
... These bruchid beetles specialize on Attalea seeds, although they are not confined to the genus (Delobelle et al. 1995; Silvius 1999). They appear to be the dominant representatives of the herbivorous trophic level supported directly by Attalea fruits and seeds (Fragoso 1997a; Fragoso et al. 2003; Si ...
... These bruchid beetles specialize on Attalea seeds, although they are not confined to the genus (Delobelle et al. 1995; Silvius 1999). They appear to be the dominant representatives of the herbivorous trophic level supported directly by Attalea fruits and seeds (Fragoso 1997a; Fragoso et al. 2003; Si ...
PROCEEDINGS STREAKED HORNED LARK WORKSHOP 2007
... Valley, and examine highly degraded sites in WA and OR as potentials for restoration. In addition to discussions and informative presentations, the workshop generated interest in the formation of a Streaked Horned Lark working group that will follow up with practitioners across the range and track t ...
... Valley, and examine highly degraded sites in WA and OR as potentials for restoration. In addition to discussions and informative presentations, the workshop generated interest in the formation of a Streaked Horned Lark working group that will follow up with practitioners across the range and track t ...
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... interplay of predation risk and forage availability [2], [3], [4], or predators whose habitat use may be determined more by prey accessibility than abundance [5], [6], scavengers face a different set of challenges and their ecology is likely to be mediated by other ecological factors. In many ways s ...
... interplay of predation risk and forage availability [2], [3], [4], or predators whose habitat use may be determined more by prey accessibility than abundance [5], [6], scavengers face a different set of challenges and their ecology is likely to be mediated by other ecological factors. In many ways s ...
character release following extinction in a caribbean reef
... shift is related to coral growth form and growth rate, and thus reflects the acquisition of a primary resource in corals— light. Character release occurred at the same oceanic Caribbean island (Barbados) where environments have fluctuated with similar variance throughout the period of coexistence. N ...
... shift is related to coral growth form and growth rate, and thus reflects the acquisition of a primary resource in corals— light. Character release occurred at the same oceanic Caribbean island (Barbados) where environments have fluctuated with similar variance throughout the period of coexistence. N ...
global strategy for addressing the problem of invasive alien species
... world. Indeed, the lives of people everywhere have been greatly enriched by being able to gain access to a greater share of the world's biological diversity. Expanding global trade is providing additional opportunities for further such enrichment, as well as imposing new species on ecosystems. 2. A ...
... world. Indeed, the lives of people everywhere have been greatly enriched by being able to gain access to a greater share of the world's biological diversity. Expanding global trade is providing additional opportunities for further such enrichment, as well as imposing new species on ecosystems. 2. A ...
Western Harvest Mouse (Reithrodontomys megalotis megalotis)
... because it has a limited range, and small extent of occurrence and area of occupancy. It is listed as Special Concern under Schedule 1 of the Species at Risk Act (SARA). In British Columbia (B.C.), the Western Harvest Mouse is ranked S2S3 (imperiled to vulnerable) by the Conservation Data Centre and ...
... because it has a limited range, and small extent of occurrence and area of occupancy. It is listed as Special Concern under Schedule 1 of the Species at Risk Act (SARA). In British Columbia (B.C.), the Western Harvest Mouse is ranked S2S3 (imperiled to vulnerable) by the Conservation Data Centre and ...
Risk analysis of the fox squirrel Sciurus niger
... The most likely entry pathway of fox squirrel in Belgium is escape or release from captive breeding. The prohibition of fox squirrel importation, trade and holding could therefore be considered as an efficient measure for reducing the risk of entry to an acceptable level. As a transitional measure, ...
... The most likely entry pathway of fox squirrel in Belgium is escape or release from captive breeding. The prohibition of fox squirrel importation, trade and holding could therefore be considered as an efficient measure for reducing the risk of entry to an acceptable level. As a transitional measure, ...
University of Groningen Holism and reductionism in biology
... My aim in the present chapter is to try and improve upon that situation as far as communities are concerned. I will provide a conceptual analysis and clarification of the concept ’community’ and I will attempt to define it unambiguously. Though occasionally the concept ’ecosystem’ will also be menti ...
... My aim in the present chapter is to try and improve upon that situation as far as communities are concerned. I will provide a conceptual analysis and clarification of the concept ’community’ and I will attempt to define it unambiguously. Though occasionally the concept ’ecosystem’ will also be menti ...
Are We Missing the Forest for the Trees?
... One of the major questions in ecology is how plant species coexist and thus how diversity is maintained. While there are many theories to explain the maintenance of plant species diversity, compelling ...
... One of the major questions in ecology is how plant species coexist and thus how diversity is maintained. While there are many theories to explain the maintenance of plant species diversity, compelling ...