Regime Shifts in the Anthropocene: drivers, risk
... Summary. Kelp forests are marine coastal ecosystems located in shallow areas where large macroalgae ecologically engineer the environment to produce a coastal marine environmental substantially different from the same area without kelp. Kelp forests can undergo a regime shift to turf-forming algae o ...
... Summary. Kelp forests are marine coastal ecosystems located in shallow areas where large macroalgae ecologically engineer the environment to produce a coastal marine environmental substantially different from the same area without kelp. Kelp forests can undergo a regime shift to turf-forming algae o ...
Spatio-temporal water uptake patterns of tree saplings are not
... species was not affected by interspecific interactions in mixtures. Niche overlap between deciduous species was lowest (74%) whereas the two evergreen species had similar water uptake patterns (91%). According to our results, interspecific competition did not alter water uptake patterns of the studi ...
... species was not affected by interspecific interactions in mixtures. Niche overlap between deciduous species was lowest (74%) whereas the two evergreen species had similar water uptake patterns (91%). According to our results, interspecific competition did not alter water uptake patterns of the studi ...
Managing For Old-Growth Structure in Northern Hardwood Forests
... distributions in eastern old-growth forests (Leak 1996 and 2002, Goodburn and Lorimer 1999). These vary with disturbance history, species composition, and competitive dynamics. The distribution offers advantages for late-successional structural management because it allocates more growing space and ...
... distributions in eastern old-growth forests (Leak 1996 and 2002, Goodburn and Lorimer 1999). These vary with disturbance history, species composition, and competitive dynamics. The distribution offers advantages for late-successional structural management because it allocates more growing space and ...
Ecosystem processes
... ecosystem management suggest that rather than managing individual species, natural resources should be managed at the level of the ecosystem itself. Classifying ecosystems into ecologically homogeneous units is an important step towards effective ecosystem management, but there is no single, agreed- ...
... ecosystem management suggest that rather than managing individual species, natural resources should be managed at the level of the ecosystem itself. Classifying ecosystems into ecologically homogeneous units is an important step towards effective ecosystem management, but there is no single, agreed- ...
Frog Friendly Habitat - Ginninderra Catchment Group
... be obtained from the ACT Frogwatch Coordinator. This may give you further ideas about the best type of habitat to create. Whilst it is likely that you will not be able to provide refuge for the more unusual species in suburbia, providing refuge such as logs and rocks for local frog species in our co ...
... be obtained from the ACT Frogwatch Coordinator. This may give you further ideas about the best type of habitat to create. Whilst it is likely that you will not be able to provide refuge for the more unusual species in suburbia, providing refuge such as logs and rocks for local frog species in our co ...
2013 печ. 521М Ecology
... complexity of ecosystems over longer temporal and broader spatial scales. The International Long Term Ecological Network manages and exchanges scientific information among research sites. The longest experiment in existence is the Park Grass Experiment that was initiated in 1856. Another example inc ...
... complexity of ecosystems over longer temporal and broader spatial scales. The International Long Term Ecological Network manages and exchanges scientific information among research sites. The longest experiment in existence is the Park Grass Experiment that was initiated in 1856. Another example inc ...
An Overview of the Impacts of Eutrophication and Chemical
... obvious to the eyes and nose, they have received considerable attention from the news media. Narrow attention to major mortality events of these taxa alone, however, likely misses subtle community- and ecosystem-level changes, which only become manifest after a long period of time. For instance it m ...
... obvious to the eyes and nose, they have received considerable attention from the news media. Narrow attention to major mortality events of these taxa alone, however, likely misses subtle community- and ecosystem-level changes, which only become manifest after a long period of time. For instance it m ...
AP Ecology Review Questions 51-56
... 8. Explain why the soil in tropical forests contains lower levels of nutrients than soil in temperate forests 9. Describe how agricultural practices can interfere with nitrogen cycling 10. Describe how deforestation can affect nutrient cycling within an ecosystem 11. Explain how "cultural eutrophica ...
... 8. Explain why the soil in tropical forests contains lower levels of nutrients than soil in temperate forests 9. Describe how agricultural practices can interfere with nitrogen cycling 10. Describe how deforestation can affect nutrient cycling within an ecosystem 11. Explain how "cultural eutrophica ...
The Eco-System and It`s Challenges
... Biodiversity is the huge variety of animals and plants on our planet, together with the places where they are found. Biodiversity boosts ecosystems productivity where each species, no matter how small, all have an important role to play. For example, a larger number of plant species means greater va ...
... Biodiversity is the huge variety of animals and plants on our planet, together with the places where they are found. Biodiversity boosts ecosystems productivity where each species, no matter how small, all have an important role to play. For example, a larger number of plant species means greater va ...
Seed Dispersal of Bactris glaucescens by the Pacu Fish
... the diet of the pacu in the wet season was fruits of the palm Bactris glaucescens found in the guts of 73 percent of all fishes collected (N = 70). We found a positive relationship between fish length, weight, and gape size and the number of intact seeds in their gut. Therefore, large pacus are espe ...
... the diet of the pacu in the wet season was fruits of the palm Bactris glaucescens found in the guts of 73 percent of all fishes collected (N = 70). We found a positive relationship between fish length, weight, and gape size and the number of intact seeds in their gut. Therefore, large pacus are espe ...
Differing effects on dicots and monocots by Centaurea
... knapweed. There was not a significant difference in total plant abundance between the two treatments. We also did not find significant differences between dicot or monocot abundance or height in plots with and without knapweed. We could not conclude that knapweed impacted dicot species more than mon ...
... knapweed. There was not a significant difference in total plant abundance between the two treatments. We also did not find significant differences between dicot or monocot abundance or height in plots with and without knapweed. We could not conclude that knapweed impacted dicot species more than mon ...
Oregon Spotted Frogs 101
... Breed late winter and early spring; eggs hatch in 2-4 weeks Tadpoles spend ~4 months growing and developing Tadpoles metamorphose in mid-to-late summer Juveniles and adults remain in aquatic habitat year round ...
... Breed late winter and early spring; eggs hatch in 2-4 weeks Tadpoles spend ~4 months growing and developing Tadpoles metamorphose in mid-to-late summer Juveniles and adults remain in aquatic habitat year round ...
Measuring Farmland Biodiversity
... to the Bordeaux grape, farmland biodiversity may be higher than what’s found in any other agricultural region of Europe—an important fact only recently brought to light. Biodiversity—the diversity of genes, species, and habitats—is among the natural resources under threat by the growing human popula ...
... to the Bordeaux grape, farmland biodiversity may be higher than what’s found in any other agricultural region of Europe—an important fact only recently brought to light. Biodiversity—the diversity of genes, species, and habitats—is among the natural resources under threat by the growing human popula ...
Consumer species richness and nutrients
... prey diversity have been largely neglected. It is well known that a loss of a consumer species can radically change entire ecosystems18, but we can only guess what the consequences of losing multiple consumer species would be. Furthermore, it is acknowledged that the mechanisms that regulate biodive ...
... prey diversity have been largely neglected. It is well known that a loss of a consumer species can radically change entire ecosystems18, but we can only guess what the consequences of losing multiple consumer species would be. Furthermore, it is acknowledged that the mechanisms that regulate biodive ...
Node-by-node disassembly of a mutualistic interaction web driven
... web consist of the southernmost hummingbird species (Sephanoides sephaniodes), a mistletoe (Tristerix corymbosus), the dominant understory shrub (Aristotelia chilensis) that is the most common host of mistletoe (16), and an endemic marsupial (Dromiciops gliroides) (17). The hummingbird pollinates ne ...
... web consist of the southernmost hummingbird species (Sephanoides sephaniodes), a mistletoe (Tristerix corymbosus), the dominant understory shrub (Aristotelia chilensis) that is the most common host of mistletoe (16), and an endemic marsupial (Dromiciops gliroides) (17). The hummingbird pollinates ne ...
Weak and variable relationships between environmental severity
... indicators, such as germination, growth or survival, is well known to have potentially profound effects on experimental outcomes (Goldberg et al. 1999; Maestre et al. 2005), more subtle differences among studies may also cause variability, but are often disregarded. Such differences include the supp ...
... indicators, such as germination, growth or survival, is well known to have potentially profound effects on experimental outcomes (Goldberg et al. 1999; Maestre et al. 2005), more subtle differences among studies may also cause variability, but are often disregarded. Such differences include the supp ...
Habitat suitability modelling and niche theory
... occurrence of the species. In spite of this relationship, the concepts are weakly linked in the literature, and there is a strong need for better integration. 2. We selectively reviewed the literature for habitat suitability studies that directly addressed four common facets of niche theory: niche c ...
... occurrence of the species. In spite of this relationship, the concepts are weakly linked in the literature, and there is a strong need for better integration. 2. We selectively reviewed the literature for habitat suitability studies that directly addressed four common facets of niche theory: niche c ...
acorn connection addition_NEW
... the bacteria that cause Lyme disease, but become infected when they feed on the mice that have increased because of acorns. This means that the risk of Lyme disease can be higher in oak forests two years after a large acorn crop. Acorns are a key food for white-footed mice. The mice are key predator ...
... the bacteria that cause Lyme disease, but become infected when they feed on the mice that have increased because of acorns. This means that the risk of Lyme disease can be higher in oak forests two years after a large acorn crop. Acorns are a key food for white-footed mice. The mice are key predator ...
Chapter-9-Wildlife-Biology-and-Management
... • All organisms have a home range – Area within which they live and obtain resources – Size of home range varies – Tolerance of others’ presence varies ...
... • All organisms have a home range – Area within which they live and obtain resources – Size of home range varies – Tolerance of others’ presence varies ...
Trait-mediated assembly processes predict successional changes in
... community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita population growth rate) differences and stabilizing niche diff ...
... community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita population growth rate) differences and stabilizing niche diff ...
Resource Resilience, Human Niche Construction, and the Long
... impact on wild animal populations simply in terms of low predation pressure, it is worthwhile to consider the extent to which a number of the primary prey species they relied upon may have been resilient under human predation. The term ‘‘reslience’’ as used here refers to the capacity of the species ...
... impact on wild animal populations simply in terms of low predation pressure, it is worthwhile to consider the extent to which a number of the primary prey species they relied upon may have been resilient under human predation. The term ‘‘reslience’’ as used here refers to the capacity of the species ...
Update on the environmental and economic costs associated with
... escaped and become established in surrounding natural ecosystems (Frank and McCoy, 1995a; Frank et al., 1997; Simberloff et al., 1997). More than 3000 plant species have been introduced into California (Dowell and Krass, 1992). Most of the 5000 alien plants established in U.S. natural ecosystems hav ...
... escaped and become established in surrounding natural ecosystems (Frank and McCoy, 1995a; Frank et al., 1997; Simberloff et al., 1997). More than 3000 plant species have been introduced into California (Dowell and Krass, 1992). Most of the 5000 alien plants established in U.S. natural ecosystems hav ...
The beta-diversity of species interactions: Untangling the drivers of
... levels to help guide the development of the burgeoning field of interaction beta-diversity. In particular, we emphasize how variation in regional species pools (gamma-diversity) may contribute to variation in interaction beta-diversity among biogeographic regions with dissimilar evolutionary history ...
... levels to help guide the development of the burgeoning field of interaction beta-diversity. In particular, we emphasize how variation in regional species pools (gamma-diversity) may contribute to variation in interaction beta-diversity among biogeographic regions with dissimilar evolutionary history ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.