Drought and Aquatic Ecosystems
... and those, especially of long duration and high intensity, can be highly damaging and leave long-lasting effects. This book describes the climatic conditions that give rise to droughts, and their various forms and chief attributes. Past droughts are described including those that had severe impacts ...
... and those, especially of long duration and high intensity, can be highly damaging and leave long-lasting effects. This book describes the climatic conditions that give rise to droughts, and their various forms and chief attributes. Past droughts are described including those that had severe impacts ...
Ronald H. Karlson - MISE@University of the Ryukyus
... (mostly dead Acropora spp.) which has been transported leeward during storms. Stoloniferous zoanthid growth over this substratum and buddingofzoanthid polyps result in high polyp densities. In February 1977, mean polyp densities for Z. sociatus at a depth of -1.0 m were 671 (SD = 82),353 (SD = 61), ...
... (mostly dead Acropora spp.) which has been transported leeward during storms. Stoloniferous zoanthid growth over this substratum and buddingofzoanthid polyps result in high polyp densities. In February 1977, mean polyp densities for Z. sociatus at a depth of -1.0 m were 671 (SD = 82),353 (SD = 61), ...
Intermittent Stream Ecology
... influenced by weather patterns on a number of scales (e.g., local rainfall, watershed snowfall, and regional climate). Many intermittent streams are subject to intense spring flooding resulting from the combination of melting snowpack and increased rainfall. This flooding can morphologically alt ...
... influenced by weather patterns on a number of scales (e.g., local rainfall, watershed snowfall, and regional climate). Many intermittent streams are subject to intense spring flooding resulting from the combination of melting snowpack and increased rainfall. This flooding can morphologically alt ...
Parallel shifts in ecology and natural selection in an island lizard
... tivity [23]. However, the mixture of overstory and understory vegetation at our study site made it difficult to quantify the gains and losses of green biomass due to drought from remotely-sensed data, and we therefore estimated these values qualitatively for our experimental islands. We then introdu ...
... tivity [23]. However, the mixture of overstory and understory vegetation at our study site made it difficult to quantify the gains and losses of green biomass due to drought from remotely-sensed data, and we therefore estimated these values qualitatively for our experimental islands. We then introdu ...
Estuarine Ecology Comprehensive Information
... and inexpensive gear, and has no detrimental effect on the resident biota. Benthic macroinvertebrates are abundant in most streams. Many small streams (1st and 2nd order) which naturally support a diverse macroinvertebrate fauna, only support a limited fish fauna. B. Submerged Aquatic Vegetation Sub ...
... and inexpensive gear, and has no detrimental effect on the resident biota. Benthic macroinvertebrates are abundant in most streams. Many small streams (1st and 2nd order) which naturally support a diverse macroinvertebrate fauna, only support a limited fish fauna. B. Submerged Aquatic Vegetation Sub ...
shading facilitates sessile invertebrate - Ron Etter
... sessile invertebrates, especially ascidians, sponges, bryozoans, and cnidarians, while nearby horizontal rock surfaces are dominated by algae in temperate seas or corals in the tropics (reviewed in Witman and Dayton 2001, Miller 2005). Horizontal–vertical differences also exist in the intertidal, wh ...
... sessile invertebrates, especially ascidians, sponges, bryozoans, and cnidarians, while nearby horizontal rock surfaces are dominated by algae in temperate seas or corals in the tropics (reviewed in Witman and Dayton 2001, Miller 2005). Horizontal–vertical differences also exist in the intertidal, wh ...
Full text in pdf format
... Physical disturbance plays a fundamental role in the dynamics of natural communities. To persist in a community, species must possess adaptations which allow them to resist or recover from even the most severe disturbances encountered. These adaptations can include resistant structures to minimize d ...
... Physical disturbance plays a fundamental role in the dynamics of natural communities. To persist in a community, species must possess adaptations which allow them to resist or recover from even the most severe disturbances encountered. These adaptations can include resistant structures to minimize d ...
Spatial pattern in Anthyllis cytisoides shrubland on abandoned land
... succession. Therefore, the floristic composition, stand density and the spatial distribution patterns of the shrubs are expected to change with time which will have consequences for the hydrological balance. As part of a wider research project (MEDALUS II Mediterranean Desertification and Land Use) ...
... succession. Therefore, the floristic composition, stand density and the spatial distribution patterns of the shrubs are expected to change with time which will have consequences for the hydrological balance. As part of a wider research project (MEDALUS II Mediterranean Desertification and Land Use) ...
Patterns of disturbance and recovery in littoral rock pools
... ABSTRACT: Patterns of &sturbance and recovery were investigated in algal-dominated littoral rock pools on the west coast of Italy from February 1991 to November 1993. The assemblage was a mosaic of canopyforming species interspersed amongst patches of turf-forming and encrusting algae. T h e effects ...
... ABSTRACT: Patterns of &sturbance and recovery were investigated in algal-dominated littoral rock pools on the west coast of Italy from February 1991 to November 1993. The assemblage was a mosaic of canopyforming species interspersed amongst patches of turf-forming and encrusting algae. T h e effects ...
Soil water content and emergence time control seedling
... near streams (Urbieta et al. 2008), whereas deciduous Q. pyrenaica occurs in small stands at the highest altitudes. There is little natural regeneration of the three oak species as revealed by forest inventory surveys (Urbieta 2008), but the causes remain rather uncertain. See Quilchano et al. ...
... near streams (Urbieta et al. 2008), whereas deciduous Q. pyrenaica occurs in small stands at the highest altitudes. There is little natural regeneration of the three oak species as revealed by forest inventory surveys (Urbieta 2008), but the causes remain rather uncertain. See Quilchano et al. ...
Local adaptation to climate change in a calcareous grassland system
... calcareous grassland since 1993 at the Buxton Climate Change Impacts Laboratory (BCCIL) in northern England (UK). Here I investigated the role of local adaptation as mechanism of the apparent resistance of species’ to long-term climate manipulations at BCCIL using a common forb, Plantago lanceolata. ...
... calcareous grassland since 1993 at the Buxton Climate Change Impacts Laboratory (BCCIL) in northern England (UK). Here I investigated the role of local adaptation as mechanism of the apparent resistance of species’ to long-term climate manipulations at BCCIL using a common forb, Plantago lanceolata. ...
The consequences of scale: assessing the distribution of benthic
... were found in the North. Most of the variability in population abundance was captured at the smaller spatial scales. Physical conditions tend to become increasingly different with distance among sites. Communities became more different from north to south as species intolerant of more estuarine condit ...
... were found in the North. Most of the variability in population abundance was captured at the smaller spatial scales. Physical conditions tend to become increasingly different with distance among sites. Communities became more different from north to south as species intolerant of more estuarine condit ...
estuary-net
... The fundamental goal of ecology is to understand the distribution and abundance of organisms. Toward this end, ecology explores relationships between organisms and biotic (living) factors or abiotic (non-living) factors in the environment. Ecological interactions range from the impact of predation ( ...
... The fundamental goal of ecology is to understand the distribution and abundance of organisms. Toward this end, ecology explores relationships between organisms and biotic (living) factors or abiotic (non-living) factors in the environment. Ecological interactions range from the impact of predation ( ...
Life on the edge: diet preferences reflect adaptation to
... Kueppers, 2012), potentially impacting the organisms that depend on them for forage. In response to changing and decreased food availability, one of the primary causes of population declines and extinctions (Cahill et al. 2013), wildlife may either locally adapt or move in search of better habitat. ...
... Kueppers, 2012), potentially impacting the organisms that depend on them for forage. In response to changing and decreased food availability, one of the primary causes of population declines and extinctions (Cahill et al. 2013), wildlife may either locally adapt or move in search of better habitat. ...
Is Taxonomic Diversity Enough? The Role of Phylogenetic
... consecutive dry days that the region experiences (Shafter et al. 2014). Although precipitation levels are predicted to increase, the increase will be seen in infrequent heavy precipitation events, straddled by longer dry periods (IPCC 2007). These changes will significantly intensify the drought str ...
... consecutive dry days that the region experiences (Shafter et al. 2014). Although precipitation levels are predicted to increase, the increase will be seen in infrequent heavy precipitation events, straddled by longer dry periods (IPCC 2007). These changes will significantly intensify the drought str ...
Corridor
... Do corridors function to prevent or impede movement of organisms among patches and across the landscape (i.e., decrease landscape connectivity)? Yes, but dependent on: – Corridor type & width – Frequency of human and other spp. activity in corridor – Mobility & behavior of species ...
... Do corridors function to prevent or impede movement of organisms among patches and across the landscape (i.e., decrease landscape connectivity)? Yes, but dependent on: – Corridor type & width – Frequency of human and other spp. activity in corridor – Mobility & behavior of species ...
The three grades of metazoan animals
... crawl along the bottom, whereas others are free swimming. ...
... crawl along the bottom, whereas others are free swimming. ...
the maintenance of species diversity by disturbance
... defining intensity as size times frequency, we avoid some problems but create others. We are assuming that all disturbances within any particular system under observation, regardless of intensity, cause the same level of damage per unit area per unit time-that is, they are equally severe. Our defini ...
... defining intensity as size times frequency, we avoid some problems but create others. We are assuming that all disturbances within any particular system under observation, regardless of intensity, cause the same level of damage per unit area per unit time-that is, they are equally severe. Our defini ...
Importance of biogenic substrates for the stone crab
... ABSTRACT. In order to better understand the ecology of the different growth phases of the stone crab, Menippe nodifrons, and provide information for conservation of the natural stocks, this study describes the utilization of different biogenic substrates by this species in the intertidal zone. Sampl ...
... ABSTRACT. In order to better understand the ecology of the different growth phases of the stone crab, Menippe nodifrons, and provide information for conservation of the natural stocks, this study describes the utilization of different biogenic substrates by this species in the intertidal zone. Sampl ...
Habitat isolation and ecological barriers
... - the contribution o f species visiting from surrounding areas increases as well as the proportion o f m atter and energy transported across their boundaries. The instability o f remnants increases, according to the changes in surrounding areas (Kozakiewicz and Szacki 1987). Patches o f different de ...
... - the contribution o f species visiting from surrounding areas increases as well as the proportion o f m atter and energy transported across their boundaries. The instability o f remnants increases, according to the changes in surrounding areas (Kozakiewicz and Szacki 1987). Patches o f different de ...
Linking community and ecosystem dynamics through spatial
... metacommunities incorporating abiotic fluxes and feedbacks stemming from ecosystem functioning (such as recycling). As of today, the concept of metaecosystem, and its associated studies (Loreau et al. 2003; Loreau & Holt 2004; Gravel et al. 2010a,b), are the only existing attempts at modelling both ...
... metacommunities incorporating abiotic fluxes and feedbacks stemming from ecosystem functioning (such as recycling). As of today, the concept of metaecosystem, and its associated studies (Loreau et al. 2003; Loreau & Holt 2004; Gravel et al. 2010a,b), are the only existing attempts at modelling both ...
ommunications - Department of Biological Sciences
... inorganic carbon will influence pH. Additions of a limiting nutrient stimulate plant productivity, and high rates of photosynthesis can deplete dissolved inorganic carbon, which in turn elevates pH during daylight hours. Elevated pH may impair chemoreception by changing the conformation of olfactory ...
... inorganic carbon will influence pH. Additions of a limiting nutrient stimulate plant productivity, and high rates of photosynthesis can deplete dissolved inorganic carbon, which in turn elevates pH during daylight hours. Elevated pH may impair chemoreception by changing the conformation of olfactory ...
An investigation into the effects of tourist related disturbances on
... Along with environmental conventions and the activities of other organisations, more general practises are evolving that aid in parrot conservation, due to the growing international concern over the destruction of the world’s tropical rainforests (Smyth et al 2004). Measures are being taken to reduc ...
... Along with environmental conventions and the activities of other organisations, more general practises are evolving that aid in parrot conservation, due to the growing international concern over the destruction of the world’s tropical rainforests (Smyth et al 2004). Measures are being taken to reduc ...