Redacted for privacy - H.J. Andrews Experimental Forest
... Edge effects resulting from forest fragmentation are likely to alter the distributions and interactions of resident species. I evaluated changes in species composition, species turnover, and relative abundance of ground arthropods across replicated transects extending from regenerating clearcuts int ...
... Edge effects resulting from forest fragmentation are likely to alter the distributions and interactions of resident species. I evaluated changes in species composition, species turnover, and relative abundance of ground arthropods across replicated transects extending from regenerating clearcuts int ...
Herpetofauna Biodiversity on Marine Corps Installations
... having enough significant natural resources to require an INRMP. In some cases, a major Marine Corps installation has one or several geographically-distinct parcels under its command. These parcels, if included in the INRMP, were considered separately in this analysis and a herpetofauna list was dev ...
... having enough significant natural resources to require an INRMP. In some cases, a major Marine Corps installation has one or several geographically-distinct parcels under its command. These parcels, if included in the INRMP, were considered separately in this analysis and a herpetofauna list was dev ...
Urban biodiversity: patterns and mechanisms
... We recognize that urbanization has varying meanings among researchers. Definitions may be based on human population density, economics, dwelling density, or amount of paved surfaces,8,9 and may vary by spatial scale.10 Thus, urbanization as an independent variable differs among these biodiversity st ...
... We recognize that urbanization has varying meanings among researchers. Definitions may be based on human population density, economics, dwelling density, or amount of paved surfaces,8,9 and may vary by spatial scale.10 Thus, urbanization as an independent variable differs among these biodiversity st ...
INTERMEDIATE DISTURBANCE AND ITS RELATIONSHIP TO
... the maintenance of species diversity in aquatic and terrestrial systems. Although the role of disturbancegenerated patch dynamics has been clearly defined in many terrestrial systems, patch structure and dynamics are less obvious in lakes. Specifically, the controversy seems to revolve around the pa ...
... the maintenance of species diversity in aquatic and terrestrial systems. Although the role of disturbancegenerated patch dynamics has been clearly defined in many terrestrial systems, patch structure and dynamics are less obvious in lakes. Specifically, the controversy seems to revolve around the pa ...
Population structure of the pearly razorfish - Scientia Marina
... Different patterns in habitat use by nearshore fishes have been described there, including fish species that are more abundant in seagrass meadows, fish species more abundant on sand bottoms, and species with similar abundance in both types of habitat, even varying at different spatial and temporal ...
... Different patterns in habitat use by nearshore fishes have been described there, including fish species that are more abundant in seagrass meadows, fish species more abundant on sand bottoms, and species with similar abundance in both types of habitat, even varying at different spatial and temporal ...
Ecology - Defined - Academic Home Page
... stability - ability to resist change trophic structure - feeding relationships among community species ...
... stability - ability to resist change trophic structure - feeding relationships among community species ...
Non-native species in UK Overseas Territories: a review
... Territory, the ecological effects they have or may have, their current and potential distribution, the significance of the native species and habitats that non-natives are affecting, and the likelihood of successful control and any control attempts. This information, derived from published literatur ...
... Territory, the ecological effects they have or may have, their current and potential distribution, the significance of the native species and habitats that non-natives are affecting, and the likelihood of successful control and any control attempts. This information, derived from published literatur ...
Full text in pdf format
... Among the gelatinous species, carbon and nitrogen values were highest for Colobonema sericeum and Agmayeria tortugensis and lowest for Bathocyroe fosten and Poralia rufescens (Table 3). The elemental compositions of Sergestes arcticus and Serrivomer beanii were substantially greater than those of th ...
... Among the gelatinous species, carbon and nitrogen values were highest for Colobonema sericeum and Agmayeria tortugensis and lowest for Bathocyroe fosten and Poralia rufescens (Table 3). The elemental compositions of Sergestes arcticus and Serrivomer beanii were substantially greater than those of th ...
Multiple diversity–stability mechanisms enhance population and
... Nitrogen (NaNO3) and phosphorus (NaH2PO4 ) were added to reach concentrations of 2250 lg N/L and 150 lg P/L to fall within the typical range of concentrations of natural fishless ponds near Kellogg Biological Station (Downing and Leibold 2010). Larval bullfrogs were added to each tank in June to mini ...
... Nitrogen (NaNO3) and phosphorus (NaH2PO4 ) were added to reach concentrations of 2250 lg N/L and 150 lg P/L to fall within the typical range of concentrations of natural fishless ponds near Kellogg Biological Station (Downing and Leibold 2010). Larval bullfrogs were added to each tank in June to mini ...
JNCC Report No. 372 Non-native species in UK Overseas Territories:
... Territory, the ecological effects they have or may have, their current and potential distribution, the significance of the native species and habitats that non-natives are affecting, and the likelihood of successful control and any control attempts. This information, derived from published literatur ...
... Territory, the ecological effects they have or may have, their current and potential distribution, the significance of the native species and habitats that non-natives are affecting, and the likelihood of successful control and any control attempts. This information, derived from published literatur ...
Biotic and abiotic factors predicting the global distribution and
... techniques, we used 129 estimates of population density of wild pigs (Sus scrofa) from 5 continents to evaluate the relative importance, magnitude, and direction of biotic and abiotic factors in predicting population density of an invasive large mammal with a global distribution. Incorporating diver ...
... techniques, we used 129 estimates of population density of wild pigs (Sus scrofa) from 5 continents to evaluate the relative importance, magnitude, and direction of biotic and abiotic factors in predicting population density of an invasive large mammal with a global distribution. Incorporating diver ...
Where less may be more: how the rare biosphere pulls
... For instance, a highly specialized species showing a very narrow environmental niche may be abundant in a few habitats but remain rare in most others (Figure 1a). Local rarity may also be the result of fitness trade-offs, for instance, when stress resistance comes at the cost of a lower growth rate. ...
... For instance, a highly specialized species showing a very narrow environmental niche may be abundant in a few habitats but remain rare in most others (Figure 1a). Local rarity may also be the result of fitness trade-offs, for instance, when stress resistance comes at the cost of a lower growth rate. ...
Local Ecological Communities
... of eucalypts in Black Mountain, a bush reserve near the ANU, are associated only because both populations happen to tolerate the temperature, soils and rainfall characteristic of this location. Of course local populations do not live completely independently of one another. Life at Black Mountain is ...
... of eucalypts in Black Mountain, a bush reserve near the ANU, are associated only because both populations happen to tolerate the temperature, soils and rainfall characteristic of this location. Of course local populations do not live completely independently of one another. Life at Black Mountain is ...
PDF
... In contrast, EBFM aims to ensure that the total biomass removed in all fisheries does not exceed the ecosystem productivity, after considering other components of the same marine community, e.g. correlation between target and bycatch species, trophic interactions among predator and prey species, and ...
... In contrast, EBFM aims to ensure that the total biomass removed in all fisheries does not exceed the ecosystem productivity, after considering other components of the same marine community, e.g. correlation between target and bycatch species, trophic interactions among predator and prey species, and ...
Indirect interactions among tropical tree species through shared
... 1970) in a true graded continuum (Ali & Agrawal 2012). In tropical forests, an important part of seed and seedling mortality appears to be caused by such shared enemies which eat seeds or fruits of a whole group of tree species with similar size, texture and internal structure (Holt 1997). For examp ...
... 1970) in a true graded continuum (Ali & Agrawal 2012). In tropical forests, an important part of seed and seedling mortality appears to be caused by such shared enemies which eat seeds or fruits of a whole group of tree species with similar size, texture and internal structure (Holt 1997). For examp ...
recovery plan - Rogue Riverkeeper
... While the Plan urges immediate implementation of many recovery actions, defining a timeframe for Plan implementation is necessary to structure action implementation needs and overall recovery action cost. A scheduled revision, or more frequent updates, to the Plan is planned every 5 years to account ...
... While the Plan urges immediate implementation of many recovery actions, defining a timeframe for Plan implementation is necessary to structure action implementation needs and overall recovery action cost. A scheduled revision, or more frequent updates, to the Plan is planned every 5 years to account ...
The Ecological Role of the Mammalian Mesocarnivore
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
pdf - New Zealand Ecological Society
... beach, landscape, and national scales (Table 1). Division by the measured beach characteristic with the highest complexity score (i.e. most predictive) was used to relativise the importance of each predictor variable prior to plotting as a bar chart for each arthropod group. Regression tree analysis ...
... beach, landscape, and national scales (Table 1). Division by the measured beach characteristic with the highest complexity score (i.e. most predictive) was used to relativise the importance of each predictor variable prior to plotting as a bar chart for each arthropod group. Regression tree analysis ...
The Ecological Role of the Mammalian Mesocarnivore
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
stochastic processes across scales Disentangling the importance of
... this topic, we emphasize that it is not our intent to develop an elegant mathematical or statistical model to advocate one approach over another. Our goal is simply to reinforce how stochastic ecological processes that emerge within and among regions can influence the importance of deterministic pro ...
... this topic, we emphasize that it is not our intent to develop an elegant mathematical or statistical model to advocate one approach over another. Our goal is simply to reinforce how stochastic ecological processes that emerge within and among regions can influence the importance of deterministic pro ...
FOOD WEBS
... necessary if densities are to have some central tendency; density independence— for which populations vary without bounds; and density vagueness—by which populations vary wildly but are constrained at rarely encountered lower and upper limits. Whatever the merits of these explanations, my key concer ...
... necessary if densities are to have some central tendency; density independence— for which populations vary without bounds; and density vagueness—by which populations vary wildly but are constrained at rarely encountered lower and upper limits. Whatever the merits of these explanations, my key concer ...
Ecological niches occupied by in South African rangeland communities Dichapetalum cymosum
... resources spatially and temporarily. Field experiments were conducted to investigate how the above species interact and coexist with each other in two South African savanna communities. Fourteen ...
... resources spatially and temporarily. Field experiments were conducted to investigate how the above species interact and coexist with each other in two South African savanna communities. Fourteen ...
Feeding Relationships and Symbiosis
... interact with one anther • 7th - Life #2 - Investigate how organisms or populations may interact with one another through symbiotic relationships and how some species have become so adapted to each other that neither could survive without the other (e.g. Predatorprey, parasitism, mutualism and comme ...
... interact with one anther • 7th - Life #2 - Investigate how organisms or populations may interact with one another through symbiotic relationships and how some species have become so adapted to each other that neither could survive without the other (e.g. Predatorprey, parasitism, mutualism and comme ...
Advantages and disadvantages of interferencecompetitive ability
... (Bullard et al. 2004, Duyck et al. 2006, Harris and Macdonald 2007). Because most studies emphasize one mechanism exclusively, they tend to neglect the other mechanism even when it is likely to be important (Petren and Case 1996, Amarasekare 2002). For example, although many studies have ...
... (Bullard et al. 2004, Duyck et al. 2006, Harris and Macdonald 2007). Because most studies emphasize one mechanism exclusively, they tend to neglect the other mechanism even when it is likely to be important (Petren and Case 1996, Amarasekare 2002). For example, although many studies have ...
Facilitation contributes to Mediterranean woody plant diversity but
... et al., 2013). In this study, we examine how the balance between facilitation and competition contributes to the species diversity of woody plant communities over most of the productivity–aridity gradient of the Western Mediterranean floristic region (a plant biodiversity hotspot; Medail & Quezel, ...
... et al., 2013). In this study, we examine how the balance between facilitation and competition contributes to the species diversity of woody plant communities over most of the productivity–aridity gradient of the Western Mediterranean floristic region (a plant biodiversity hotspot; Medail & Quezel, ...