Invasive Plants of California's Wildland Acknowledgements The editors wish to acknowledge
... but our real concern is the survival and growth of the native plants and animals these invaders threaten. Unfortunately, some non-native invasive plant species inflict so much damage that, unless they are controlled, it will be impossible to preserve viable populations of many native species or many ...
... but our real concern is the survival and growth of the native plants and animals these invaders threaten. Unfortunately, some non-native invasive plant species inflict so much damage that, unless they are controlled, it will be impossible to preserve viable populations of many native species or many ...
Journal of Animal Ecology 82(6) - Seagrass Ecosystems Research
... remains unclear whether these megagrazer impacts are representative of ecosystem and nutrient dynamics under natural conditions (e.g. Heck & Valentine 2006, 2007) since most studies have occurred in disrupted communities (Jackson 1997; Heck & Valentine 2007). Jackson et al. (2001) suggested that sea ...
... remains unclear whether these megagrazer impacts are representative of ecosystem and nutrient dynamics under natural conditions (e.g. Heck & Valentine 2006, 2007) since most studies have occurred in disrupted communities (Jackson 1997; Heck & Valentine 2007). Jackson et al. (2001) suggested that sea ...
Trophic interactions and population structure of the large blue
... Pierce et al. 2002). However, in some lycaenid species the mutualistic relationship with ants evolved to a predatory (Thomas and Wardlaw 1992; Pierce 1995) or parasitic relationship (Pierce 1995; Thomas and Elmes 1998) leading to the severe exploitation of ant nests (reviewed by Fiedler 1998). The c ...
... Pierce et al. 2002). However, in some lycaenid species the mutualistic relationship with ants evolved to a predatory (Thomas and Wardlaw 1992; Pierce 1995) or parasitic relationship (Pierce 1995; Thomas and Elmes 1998) leading to the severe exploitation of ant nests (reviewed by Fiedler 1998). The c ...
Frog Project Report 2012/13
... Due to their remarkable life cycle, frogs (unlike mammals and birds) require both aquatic and terrestrial habitats. They depend on good aquatic habitat to lay their eggs and for tadpoles to grow in. They are strongly dependant on the hydroperiod; they need the water to remain in the waterbody until ...
... Due to their remarkable life cycle, frogs (unlike mammals and birds) require both aquatic and terrestrial habitats. They depend on good aquatic habitat to lay their eggs and for tadpoles to grow in. They are strongly dependant on the hydroperiod; they need the water to remain in the waterbody until ...
The ecological effects of providing resource subsidies to predators
... A key assumption underlying such predictions is that intraguild feedback loops, in which a top predator both attacks and competes with an intermediate predator (Holt & Huxel, 2007), characterise top predator and mesopredator relationships. An important secondary assumption is that interactions withi ...
... A key assumption underlying such predictions is that intraguild feedback loops, in which a top predator both attacks and competes with an intermediate predator (Holt & Huxel, 2007), characterise top predator and mesopredator relationships. An important secondary assumption is that interactions withi ...
panthera newsletter
... the survey, we received news that one of the collared cats was killed by a herder who believed the male leopard had been preying on his goats. The incident remains under investigation by local authorities, but is all too common a scenario where people and large cats occupy the same areas. The commun ...
... the survey, we received news that one of the collared cats was killed by a herder who believed the male leopard had been preying on his goats. The incident remains under investigation by local authorities, but is all too common a scenario where people and large cats occupy the same areas. The commun ...
SOLWAY EUROPEAN MARINE SITE Natural England and Scottish
... of Habitats and Species Regulations 2010. However, the legislation that applies in Scotland remains the Conservation (Natural Habitats, &c.) Regulations 1994 as amended. Consequently the numbering of the regulations in the two pieces of legislation are different. Regulation 33 of the Conservation (N ...
... of Habitats and Species Regulations 2010. However, the legislation that applies in Scotland remains the Conservation (Natural Habitats, &c.) Regulations 1994 as amended. Consequently the numbering of the regulations in the two pieces of legislation are different. Regulation 33 of the Conservation (N ...
Assessment approach - The Department of State Development
... extent, quality and availability of relevant data, such as species distribution or the extent of ecological communities. Fortunately, Queensland has some of the best quality and most extensive biodiversity data within Australia. From vegetation communities, species habitat and aquatic ecosystems, th ...
... extent, quality and availability of relevant data, such as species distribution or the extent of ecological communities. Fortunately, Queensland has some of the best quality and most extensive biodiversity data within Australia. From vegetation communities, species habitat and aquatic ecosystems, th ...
Eucalypt open-forests Regrowth Benefits
... prevented by uniformly high densities of understorey shrubs and small trees such as wattles (Acacia spp.), as eucalypts are relatively shade intolerant (Stoneman 1994; Florence 1996). This may also explain why there are usually few eucalypt seedlings and saplings present in the understorey of a wet ...
... prevented by uniformly high densities of understorey shrubs and small trees such as wattles (Acacia spp.), as eucalypts are relatively shade intolerant (Stoneman 1994; Florence 1996). This may also explain why there are usually few eucalypt seedlings and saplings present in the understorey of a wet ...
- Centre for Biodiversity Theory and Modelling
... community maintains the same level as that found on the mainland despite species loss following isolation. The conditions for “ecological release” (Crowell 1962) whereby depauperate communities can maintain constant total biomass have been worked out using competition theory for guilds of similar sp ...
... community maintains the same level as that found on the mainland despite species loss following isolation. The conditions for “ecological release” (Crowell 1962) whereby depauperate communities can maintain constant total biomass have been worked out using competition theory for guilds of similar sp ...
Predicting invasion in grassland ecosystems: is exotic
... Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader ...
... Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader ...
Defining drivers of the trophic niche width in reef fish communities
... Isotope Bayesian Ellipses in R » développée par Jackson et al. 2011 (SIBER - Package SIAR in R Development Core Team 2012). Cette niche isotopique sera donc utilisée comme proxy de la niche trophique, en tenant compte de certaines contraintes propres à l’utilisation des isotopes stables afin d’évite ...
... Isotope Bayesian Ellipses in R » développée par Jackson et al. 2011 (SIBER - Package SIAR in R Development Core Team 2012). Cette niche isotopique sera donc utilisée comme proxy de la niche trophique, en tenant compte de certaines contraintes propres à l’utilisation des isotopes stables afin d’évite ...
Wildlife Research - CSIRO Publishing
... since fire and to changes in vegetation structure, utilising (a) simple linear representations of time since fire and (b) a quadratic (polynomial) transformation of time since fire. The assumption behind the use of a polynomial transformation was based on observations of eucalypt stand development ( ...
... since fire and to changes in vegetation structure, utilising (a) simple linear representations of time since fire and (b) a quadratic (polynomial) transformation of time since fire. The assumption behind the use of a polynomial transformation was based on observations of eucalypt stand development ( ...
An experimental demonstration of direct behavioural
... by introduction experiments on several small islands, and concluded, based on the subsequent abundance of lizards, that competitive exclusion was occurring (Radovanovic 1965). Nevo et al. (1972) found distributional evidence to support this theory on some islands and to refute it on others. Thus, th ...
... by introduction experiments on several small islands, and concluded, based on the subsequent abundance of lizards, that competitive exclusion was occurring (Radovanovic 1965). Nevo et al. (1972) found distributional evidence to support this theory on some islands and to refute it on others. Thus, th ...
File - Links Biology Website
... Define: Introduced Species or exotic species Define: Species Diversity Define: Habitat fragmentation Define: Captive Breeding Define: Biological Magnification Define: Habitat Preservation Define: Conservation Biology Describe the factors that affect population density. Identify when a population is ...
... Define: Introduced Species or exotic species Define: Species Diversity Define: Habitat fragmentation Define: Captive Breeding Define: Biological Magnification Define: Habitat Preservation Define: Conservation Biology Describe the factors that affect population density. Identify when a population is ...
- New Zealand Ecological Society
... Abstract: The distribution and prevalence in New Zealand of adventive detritivores in native forest remnants, and of native detritivores in pine plantations, are not well known. We investigated whether forest type (small urban native remnants, large remote native remnants, and pine) and plot locatio ...
... Abstract: The distribution and prevalence in New Zealand of adventive detritivores in native forest remnants, and of native detritivores in pine plantations, are not well known. We investigated whether forest type (small urban native remnants, large remote native remnants, and pine) and plot locatio ...
Biodiversity and pest management in orchard systems. A review
... by lining hedgerows and ditches (Green et al., 1994; Parish et al., 1994; Moles and Breen, 1995), as the biodiversity on the landscape scale is improved (Benton et al., 2003) through an ...
... by lining hedgerows and ditches (Green et al., 1994; Parish et al., 1994; Moles and Breen, 1995), as the biodiversity on the landscape scale is improved (Benton et al., 2003) through an ...
European Code of Conduct on Zoological Gardens and
... habitat destruction and climate change - and the greatest threat to fragile ecosystems such as islands. Biological invasions not only constitute one of the most pervasive global threats to biodiversity (apart from the cost in terms of biodiversity loss), IAS can also have an adverse impact on human ...
... habitat destruction and climate change - and the greatest threat to fragile ecosystems such as islands. Biological invasions not only constitute one of the most pervasive global threats to biodiversity (apart from the cost in terms of biodiversity loss), IAS can also have an adverse impact on human ...
estuary-net
... abiotic factor) on where a species of marsh grass grows. The sheer number, diversity, and complexity of abiotic and biotic factors makes understanding natural systems extremely challenging. That is, nevertheless, the goal of ecology. B. What Do Ecologists Study? Ecologists take many different approa ...
... abiotic factor) on where a species of marsh grass grows. The sheer number, diversity, and complexity of abiotic and biotic factors makes understanding natural systems extremely challenging. That is, nevertheless, the goal of ecology. B. What Do Ecologists Study? Ecologists take many different approa ...
Definitions, Categories and Criteria for Threatened and Priority
... ii) there are very few occurrences, each of which is small and/or isolated and extremely vulnerable to known threatening processes; iii) there may be many occurrences but total area is very small and each occurrence is small and/or isolated and extremely vulnerable to known threatening processes. C) ...
... ii) there are very few occurrences, each of which is small and/or isolated and extremely vulnerable to known threatening processes; iii) there may be many occurrences but total area is very small and each occurrence is small and/or isolated and extremely vulnerable to known threatening processes. C) ...
A Discussion Paper
... An area is considered to have a high biodiversity score if it contains many different species of plants and animals and enough of these individuals so that each species can maintain adequate population size to allow for the persistence of species through subsequent generations (Millenium Ecosystem A ...
... An area is considered to have a high biodiversity score if it contains many different species of plants and animals and enough of these individuals so that each species can maintain adequate population size to allow for the persistence of species through subsequent generations (Millenium Ecosystem A ...
Southern bell frog - draft recovery plan
... The Southern Bell Frog (Litoria raniformis) has suffered a considerable reduction in abundance and distribution throughout New South Wales in recent years (Tyler 1993, Sadlier and Pressey 1994, Mahony 1996, Osborne et al. 1996, Ehmann and White 1996). Once abundant along the Murray and Murrumbidgee ...
... The Southern Bell Frog (Litoria raniformis) has suffered a considerable reduction in abundance and distribution throughout New South Wales in recent years (Tyler 1993, Sadlier and Pressey 1994, Mahony 1996, Osborne et al. 1996, Ehmann and White 1996). Once abundant along the Murray and Murrumbidgee ...
Distribution and abundance of lions in northwest Tete Province
... northwestern districts of Tete Province, Mozambique, because of its intact natural land cover and proximity to protected areas in Zambia and Zimbabwe. Furthermore, Tete has major gaps in knowledge about the status of lions [6], and was recommended as a survey area [6,7]. In preparation for the Conse ...
... northwestern districts of Tete Province, Mozambique, because of its intact natural land cover and proximity to protected areas in Zambia and Zimbabwe. Furthermore, Tete has major gaps in knowledge about the status of lions [6], and was recommended as a survey area [6,7]. In preparation for the Conse ...
The effects of foliar pubescence and nutrient polymorpha (Myrtaceae)
... by clipping foliage from Metrosideros polymorpha (Myrtaceae) trees of pubescent, glabrous, and intermediate leaf forms on fertilised and unfertilised plots. 2. Fertilisation decreased leaf mass per area (LMA) but did not change the relative mass of pubescence within leaf morphological classes. 3. Fe ...
... by clipping foliage from Metrosideros polymorpha (Myrtaceae) trees of pubescent, glabrous, and intermediate leaf forms on fertilised and unfertilised plots. 2. Fertilisation decreased leaf mass per area (LMA) but did not change the relative mass of pubescence within leaf morphological classes. 3. Fe ...
PDF 428KB - University of Hawaii
... by clipping foliage from Metrosideros polymorpha (Myrtaceae) trees of pubescent, glabrous, and intermediate leaf forms on fertilised and unfertilised plots. 2. Fertilisation decreased leaf mass per area (LMA) but did not change the relative mass of pubescence within leaf morphological classes. 3. Fe ...
... by clipping foliage from Metrosideros polymorpha (Myrtaceae) trees of pubescent, glabrous, and intermediate leaf forms on fertilised and unfertilised plots. 2. Fertilisation decreased leaf mass per area (LMA) but did not change the relative mass of pubescence within leaf morphological classes. 3. Fe ...
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.