View PDF - CiteSeerX
... Scheffer 1997). The two regimes of most concern to people who use the lakes are the clear-water and turbid-water regimes. In the clear-water regime, phosphorus inputs, phytoplankton biomass, and recycling of phosphorus from sediments are relatively low. In the turbid-water regime, these same variabl ...
... Scheffer 1997). The two regimes of most concern to people who use the lakes are the clear-water and turbid-water regimes. In the clear-water regime, phosphorus inputs, phytoplankton biomass, and recycling of phosphorus from sediments are relatively low. In the turbid-water regime, these same variabl ...
Development of Management Plans for the Conservation
... 17. IIle aux Benitiers-Fourneau Terrestrial System: Separate terrestrial management plans are presented for Îlot Fourneau and Ile aux Benitiers. Ilot Fourneau is an undesignated islet currently under the stewardship of the Ministry of Housing & Lands following an expired lease agreement (1962-1992) ...
... 17. IIle aux Benitiers-Fourneau Terrestrial System: Separate terrestrial management plans are presented for Îlot Fourneau and Ile aux Benitiers. Ilot Fourneau is an undesignated islet currently under the stewardship of the Ministry of Housing & Lands following an expired lease agreement (1962-1992) ...
Section 1.1 Silence of the Frogs
... How does this affect OTHER species in the same ecosystem?? ...
... How does this affect OTHER species in the same ecosystem?? ...
Biodiversity in the Cacao Agroecosystem
... doomed biological diversity. Cacao, which evolved as an understory or subcanopy tree of Amazonian forests, is one such crop plant that has traditionally been cultivated under a modified forest or planted shade canopy. The continued cultivation of cacao under a diverse shade canopy will probably enha ...
... doomed biological diversity. Cacao, which evolved as an understory or subcanopy tree of Amazonian forests, is one such crop plant that has traditionally been cultivated under a modified forest or planted shade canopy. The continued cultivation of cacao under a diverse shade canopy will probably enha ...
Experimental assessment of the effects of a Neotropical nocturnal piscivore
... biological invasions (Saunders et al., 2002; Clavero & GarcíaBerthou, 2005; Moyle & Marchetti, 2006). Many non-native freshwater fish are invading South America and particularly Brazil (Welcomme, 1988; Vitule et al., 2009), and the characteristics of successful invaders in the Neotropics and their i ...
... biological invasions (Saunders et al., 2002; Clavero & GarcíaBerthou, 2005; Moyle & Marchetti, 2006). Many non-native freshwater fish are invading South America and particularly Brazil (Welcomme, 1988; Vitule et al., 2009), and the characteristics of successful invaders in the Neotropics and their i ...
Dynamics of ecological communities in variable environments
... extinction cascades increases with increasing species richness especially when the correlation among species is low. Initial stochastic extinctions of primary producer species unleash bottom-up extinction cascades, where specialist consumers are especially vulnerable. Although the risks of extinctio ...
... extinction cascades increases with increasing species richness especially when the correlation among species is low. Initial stochastic extinctions of primary producer species unleash bottom-up extinction cascades, where specialist consumers are especially vulnerable. Although the risks of extinctio ...
Diversity meets decomposition
... can remove plant species from the litter pool (e.g. Dutch elm disease, chestnut blight disease, alder root rot, gypsy moth outbreaks) and eliminate key detritivores (e.g. crayfish plague in Europe) Exotic trees can change the composition and reduce the diversity of litter inputs (e.g. Fallopia japon ...
... can remove plant species from the litter pool (e.g. Dutch elm disease, chestnut blight disease, alder root rot, gypsy moth outbreaks) and eliminate key detritivores (e.g. crayfish plague in Europe) Exotic trees can change the composition and reduce the diversity of litter inputs (e.g. Fallopia japon ...
The Landscape Ecology of Invasive Spread
... The impact of invasive species on human economic systems has been estimated at millions to billions of dollars annually ( Pimentel et al. 2000 ), but the magnitude of the biotic costs to ecological systems is just now being assessed (e.g., Vitousek et al. 1996; Mooney & Hobbs 2000). The title of a r ...
... The impact of invasive species on human economic systems has been estimated at millions to billions of dollars annually ( Pimentel et al. 2000 ), but the magnitude of the biotic costs to ecological systems is just now being assessed (e.g., Vitousek et al. 1996; Mooney & Hobbs 2000). The title of a r ...
Factors influencing in mangroves biodiversity and distributional
... naturally occurring species. There is an overlap of only one species between hemispheres, namely Acrostichum aureum L., a mangrove fern. It is also possible that Rhizophora samoensis (Hochr.) Salvosa is the same species as R. mangle L. (Ellison, 1991) but this remains to be shown (Tomlinson, 1986; D ...
... naturally occurring species. There is an overlap of only one species between hemispheres, namely Acrostichum aureum L., a mangrove fern. It is also possible that Rhizophora samoensis (Hochr.) Salvosa is the same species as R. mangle L. (Ellison, 1991) but this remains to be shown (Tomlinson, 1986; D ...
A weed risk assessment system for new conservation weeds in New
... open habitats unsuitable for frugivorous birds, and a scoring system for that habitat type might give bird dispersal a lower score. Even so, many naturalised species have abundant wind-blown seeds, but only a few are considered to be conservation weeds. Thus, attributes such as dispersal mode may be ...
... open habitats unsuitable for frugivorous birds, and a scoring system for that habitat type might give bird dispersal a lower score. Even so, many naturalised species have abundant wind-blown seeds, but only a few are considered to be conservation weeds. Thus, attributes such as dispersal mode may be ...
Structure and Stability of Ecological Networks resource use
... its effect on community persistence in stochastic environments (Paper II). Moreover, if we are to gain trustworthy model output, it is of course of major importance to create study systems that reflect the structures of natural systems. To this end, I also study highly resolved, individual based emp ...
... its effect on community persistence in stochastic environments (Paper II). Moreover, if we are to gain trustworthy model output, it is of course of major importance to create study systems that reflect the structures of natural systems. To this end, I also study highly resolved, individual based emp ...
Introduced mammal impacts on seabirds in the Îles Éparses
... Invasive mammals have devastated endemic island communities throughout the world, and seabirds have proven particularly vulnerable, with many species extinctions. Introduced predators have had the greatest effect through direct predation, but this effect can now be mitigated by modern eradication te ...
... Invasive mammals have devastated endemic island communities throughout the world, and seabirds have proven particularly vulnerable, with many species extinctions. Introduced predators have had the greatest effect through direct predation, but this effect can now be mitigated by modern eradication te ...
The concept of potential natural vegetation: an epitaph?
... reached under stable conditions. However, ecosystems rarely experience stable conditions, and instability is magnified by human action. The biotic or abiotic conditions of apparently repetitive events are rarely the same, and this can make one species dominant in a time window but not in a later repl ...
... reached under stable conditions. However, ecosystems rarely experience stable conditions, and instability is magnified by human action. The biotic or abiotic conditions of apparently repetitive events are rarely the same, and this can make one species dominant in a time window but not in a later repl ...
REGIME SHIFTS, RESILIENCE, AND BIODIVERSITY IN
... Scheffer 1997). The two regimes of most concern to people who use the lakes are the clear-water and turbid-water regimes. In the clear-water regime, phosphorus inputs, phytoplankton biomass, and recycling of phosphorus from sediments are relatively low. In the turbid-water regime, these same variabl ...
... Scheffer 1997). The two regimes of most concern to people who use the lakes are the clear-water and turbid-water regimes. In the clear-water regime, phosphorus inputs, phytoplankton biomass, and recycling of phosphorus from sediments are relatively low. In the turbid-water regime, these same variabl ...
Ecosystems at Risk
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
Ecosystems at Risk
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
Coastal and sub-coastal wet heath swamps
... not to suggest that individual heath plants do not show a growth response to the addition of limiting nutrients. When applied more liberally to whole communities under field experimental conditions, marked changes can be induced. Heddle and Specht (1975) reported changes in heathland over 22 years a ...
... not to suggest that individual heath plants do not show a growth response to the addition of limiting nutrients. When applied more liberally to whole communities under field experimental conditions, marked changes can be induced. Heddle and Specht (1975) reported changes in heathland over 22 years a ...
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 ...
Braided river field guide - Department of Conservation
... Habits: These spiders either hunt on land or submerge themselves under water for up to half an hour to catch insects and small fish. They are nocturnal and during the day shelter under stones close to the water edge. They only use silk to build nests. ...
... Habits: These spiders either hunt on land or submerge themselves under water for up to half an hour to catch insects and small fish. They are nocturnal and during the day shelter under stones close to the water edge. They only use silk to build nests. ...
Trophic complementarity drives the biodiversityecosystem
... bipartite networks for predation and resource consumption, in which the consuming organisms (predators and consumers respectively) are in rows, and the consumed organisms (consumers and resources respectively) are in columns. Values within these matrices are per capita interaction rates, and it is a ...
... bipartite networks for predation and resource consumption, in which the consuming organisms (predators and consumers respectively) are in rows, and the consumed organisms (consumers and resources respectively) are in columns. Values within these matrices are per capita interaction rates, and it is a ...
Ecology and management of oak woodlands and savannahs
... Dry, low-quality sites are better suited for restoration; historically, they burned more frequently and likely contain many desirable plants within the seedbed. More mesic, productive sites (floodplains, riparian areas, coves and northern slopes) would have burned less frequently and are best left t ...
... Dry, low-quality sites are better suited for restoration; historically, they burned more frequently and likely contain many desirable plants within the seedbed. More mesic, productive sites (floodplains, riparian areas, coves and northern slopes) would have burned less frequently and are best left t ...
Habitat selection by nocturnal passerine migrants en route
... in a clearly non-random manner, even if many species utilise a broader range of habitats during passage than during breeding or wintering. Habitat selection proceeds as a sequence of events: landfall; search/settling, including redistribution across habitats if necessary; and habitat exploitation, w ...
... in a clearly non-random manner, even if many species utilise a broader range of habitats during passage than during breeding or wintering. Habitat selection proceeds as a sequence of events: landfall; search/settling, including redistribution across habitats if necessary; and habitat exploitation, w ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.