Economic and socio-cultural priorities for marine conservation
... the somewhat worrying trend that the fishing industry is targeting trophically lower levels in marine food webs as fish stocks at higher trophic levels become depleted. The significance of these impacts in terms of the extent to which they might reduce the delivery of vital ecosystem services is unc ...
... the somewhat worrying trend that the fishing industry is targeting trophically lower levels in marine food webs as fish stocks at higher trophic levels become depleted. The significance of these impacts in terms of the extent to which they might reduce the delivery of vital ecosystem services is unc ...
Southern Coastal Plain - Georgia Department of Natural Resources
... Seasonally or semi-permanently flooded forests of depressional features in broad interstream flats. Soils range from mineral to organic and canopy dominants may include bays, pondcypress, and/or pond pine. Fire plays a role in maintaining some of these systems. Isolated wetlands that do not support ...
... Seasonally or semi-permanently flooded forests of depressional features in broad interstream flats. Soils range from mineral to organic and canopy dominants may include bays, pondcypress, and/or pond pine. Fire plays a role in maintaining some of these systems. Isolated wetlands that do not support ...
PDF 1.1 MB - LUCID EAST AFRICA
... 1999; MEC, 1999). Rangeland resources are enormous but the ecosystems are fragile requiring appropriate management strategies to ensure sustainable productivity. Animal production through pastoralism and wildlife management is the main form of rangeland use with few agropastoralism. Rangelands carry ...
... 1999; MEC, 1999). Rangeland resources are enormous but the ecosystems are fragile requiring appropriate management strategies to ensure sustainable productivity. Animal production through pastoralism and wildlife management is the main form of rangeland use with few agropastoralism. Rangelands carry ...
Mine area - Conservation Significant fauna and habitat
... lethal toxic ingestion caused by Cane Toads; removal, degradation and fragmentation of habitat as a result of development actions and agricultural activities; inappropriate fire regimes; weeds; and predation by feral animals. The most common cause of adult Northern Quoll mortality is predation, typi ...
... lethal toxic ingestion caused by Cane Toads; removal, degradation and fragmentation of habitat as a result of development actions and agricultural activities; inappropriate fire regimes; weeds; and predation by feral animals. The most common cause of adult Northern Quoll mortality is predation, typi ...
Biotic interactions and speciation in the tropics
... a result of extinctions caused by successive glacial periods. Hence, the greater effective time for diversification in the tropics facilitated the evolution of high species richness: ‘In the one, evolution has had a fair chance; in the other it has had countless difficulties thrown in its way’ (Wall ...
... a result of extinctions caused by successive glacial periods. Hence, the greater effective time for diversification in the tropics facilitated the evolution of high species richness: ‘In the one, evolution has had a fair chance; in the other it has had countless difficulties thrown in its way’ (Wall ...
Ecological drivers of the Ediacaran
... and benthic ecosystems increases with bivalves that have high clearance rates and that eject a large number of particles (Newell 2004; Ostroumov 2005). Thus, oysters significantly modified both their physical and chemical environment, in so doing, modified the environment for all other species in th ...
... and benthic ecosystems increases with bivalves that have high clearance rates and that eject a large number of particles (Newell 2004; Ostroumov 2005). Thus, oysters significantly modified both their physical and chemical environment, in so doing, modified the environment for all other species in th ...
Ecology and Evolution Affect Network Structure
... early analyses of network topology used network statistics (e.g., connectivity, nestedness) that considered only binary connections between species, that is, a presence/absence interaction matrix (but see Vazquez et al. 2007). However, an analysis of network properties based on an index of reciproca ...
... early analyses of network topology used network statistics (e.g., connectivity, nestedness) that considered only binary connections between species, that is, a presence/absence interaction matrix (but see Vazquez et al. 2007). However, an analysis of network properties based on an index of reciproca ...
Conservation Planning And Research Program Report 2011–13
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
Germinable seeds
... soil surface, with the latter treatment subsequently sown to fall cover crop of winter rye using a no-till drill. At this time, the Till/cover treatment was rototilled to a depth of 15 cm in two directions and cereal rye was sown (150 lbs. per acre). Soil cores were taken to a depth of 10 cm the fol ...
... soil surface, with the latter treatment subsequently sown to fall cover crop of winter rye using a no-till drill. At this time, the Till/cover treatment was rototilled to a depth of 15 cm in two directions and cereal rye was sown (150 lbs. per acre). Soil cores were taken to a depth of 10 cm the fol ...
Kamau_LUCID_WP36
... 1999; MEC, 1999). Rangeland resources are enormous but the ecosystems are fragile requiring appropriate management strategies to ensure sustainable productivity. Animal production through pastoralism and wildlife management is the main form of rangeland use with few agropastoralism. Rangelands carry ...
... 1999; MEC, 1999). Rangeland resources are enormous but the ecosystems are fragile requiring appropriate management strategies to ensure sustainable productivity. Animal production through pastoralism and wildlife management is the main form of rangeland use with few agropastoralism. Rangelands carry ...
BIOGEOGRAPHY 8
... maps of species if their ranges are constantly changing size and shape. If we wait long enough, all distributional maps will change, if only because all species have finite lifetimes. However, spatial patterns may be stable on time scales that are relevant to ecological or evolutionary mechanisms. I ...
... maps of species if their ranges are constantly changing size and shape. If we wait long enough, all distributional maps will change, if only because all species have finite lifetimes. However, spatial patterns may be stable on time scales that are relevant to ecological or evolutionary mechanisms. I ...
- Wiley Online Library
... regardless of species composition within those trophic levels (Allen et al., 2005; O’Connor, 2009; O’Connor et al., 2011). In addition to these differential effects on metabolic rates, trophic level can also predict vulnerability to lethal effects and consequent extinction (Petchey et al., 1999). Ho ...
... regardless of species composition within those trophic levels (Allen et al., 2005; O’Connor, 2009; O’Connor et al., 2011). In addition to these differential effects on metabolic rates, trophic level can also predict vulnerability to lethal effects and consequent extinction (Petchey et al., 1999). Ho ...
Seed size, growth rate and gap microsite
... neotropical pioneer species. We investigated the soil seed bank, and followed seedlings from emergence and establishment to the sapling stage in artificially created gaps in secondary forest on the Barro Colorado Nature Monument, Panamá. 2 To simulate microsite variation within gaps, litter addition ...
... neotropical pioneer species. We investigated the soil seed bank, and followed seedlings from emergence and establishment to the sapling stage in artificially created gaps in secondary forest on the Barro Colorado Nature Monument, Panamá. 2 To simulate microsite variation within gaps, litter addition ...
Conservation Planning And Research Program Report 2011–13
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
(Repco Rally Australia) In The Norther
... invasion of suitable habitat by weeds, such as Lantana, Crofton Weed and Mistflower in northern NSW. With such a small population occurring in northern NSW/southern Qld, it is essential to prevent any significant impacts occurring from the Repco Rally and any significant disturbances or mortality ...
... invasion of suitable habitat by weeds, such as Lantana, Crofton Weed and Mistflower in northern NSW. With such a small population occurring in northern NSW/southern Qld, it is essential to prevent any significant impacts occurring from the Repco Rally and any significant disturbances or mortality ...
Chipmunk, Peñasco least
... Specimens of the Peñasco least chipmunk from the Sacramento Mountains had a mean body length of 113.7 mm, a mean tail length of 92.7 mm, a mean ear length of 13.6 mm, and a mean hindfoot length of 30.5 mm (Frey 2010). The chipmunk has pale yellowish orange hindfeet, a light beige, yellowish, or oran ...
... Specimens of the Peñasco least chipmunk from the Sacramento Mountains had a mean body length of 113.7 mm, a mean tail length of 92.7 mm, a mean ear length of 13.6 mm, and a mean hindfoot length of 30.5 mm (Frey 2010). The chipmunk has pale yellowish orange hindfeet, a light beige, yellowish, or oran ...
- Wiley Online Library
... perform better than smaller offspring. Despite the importance of this assumption empirical, field-based tests are rare, especially for marine organisms. We tested this assumption for the marine invertebrate, Diplosoma listerianum, a colonial ascidian that commonly occurs in temperate marine communit ...
... perform better than smaller offspring. Despite the importance of this assumption empirical, field-based tests are rare, especially for marine organisms. We tested this assumption for the marine invertebrate, Diplosoma listerianum, a colonial ascidian that commonly occurs in temperate marine communit ...
Large-Scale Impacts of the Deepwater Horizon Oil Spill: Can Local
... important, which means that more than 1% of at least one shorebird species’ total population has been documented at the site (table 1; Manomet 2010). For these populations, the potential effects from the DWH spill will be more severe if the same individuals that winter or stopover together on the GO ...
... important, which means that more than 1% of at least one shorebird species’ total population has been documented at the site (table 1; Manomet 2010). For these populations, the potential effects from the DWH spill will be more severe if the same individuals that winter or stopover together on the GO ...
RESEARCH REPORT
... contents did help to reconcile observed predation rates with recovery errors. Mean water temperatures were not significantly different among replicates No (ANOVA, P > 0.05; Figure 3). correlation was found between number of bluegills consumed and average water temperatures for any trial (P > 0.05). ...
... contents did help to reconcile observed predation rates with recovery errors. Mean water temperatures were not significantly different among replicates No (ANOVA, P > 0.05; Figure 3). correlation was found between number of bluegills consumed and average water temperatures for any trial (P > 0.05). ...
Chapter 1. Threats to freshwater biodiversity globally and in
... ecoregions and hotspots was unveiled relatively recently (Abell et al. 2008; see Figure 2.3). It is an important development given the lack of any confirmation that terrestrial and freshwater hotspots overlap (Strayer and Dudgeon 2010) although, based on a recent analysis at the scale of river catch ...
... ecoregions and hotspots was unveiled relatively recently (Abell et al. 2008; see Figure 2.3). It is an important development given the lack of any confirmation that terrestrial and freshwater hotspots overlap (Strayer and Dudgeon 2010) although, based on a recent analysis at the scale of river catch ...
How can we apply theories of habitat selection to wildlife
... from being selective in their preferred habitat and become opportunistic by using both habitats at a higher density than they would otherwise (the isodar intercept has increased) (Fig. 1). The density-dependent switch in behaviour, called an isoleg (Rosenzweig 1974), can be graphed as a function of ...
... from being selective in their preferred habitat and become opportunistic by using both habitats at a higher density than they would otherwise (the isodar intercept has increased) (Fig. 1). The density-dependent switch in behaviour, called an isoleg (Rosenzweig 1974), can be graphed as a function of ...
An Analysis of Persistence, Resilience, and the Conservation of
... AN ANALYSIS OF PERSISTENCE, RESILIENCE, AND THE CONSERVATION OF KEYSTONE SPECIES Amitrajeet A. Batabyal ...
... AN ANALYSIS OF PERSISTENCE, RESILIENCE, AND THE CONSERVATION OF KEYSTONE SPECIES Amitrajeet A. Batabyal ...
The role of metapopulations in conservation
... plants. Thus, the frequency and intensity of fires are important components of the species’ ecology. A study focusing on a single small population (Regan et al. 2003) concluded that predation reduction improved the chances of long-term persistence of small populations substantially. However, a metap ...
... plants. Thus, the frequency and intensity of fires are important components of the species’ ecology. A study focusing on a single small population (Regan et al. 2003) concluded that predation reduction improved the chances of long-term persistence of small populations substantially. However, a metap ...
Snags, Coarse Woody Debris, and Wildlife
... studies revealed that to retain viable populations of cavity nesters, about four snags greater than 10 inches in diameter were needed on a per acre basis with about two of these greater than 20 inches in diameter. Numbers were similar but slightly higher on the westside. Variation in height, di ...
... studies revealed that to retain viable populations of cavity nesters, about four snags greater than 10 inches in diameter were needed on a per acre basis with about two of these greater than 20 inches in diameter. Numbers were similar but slightly higher on the westside. Variation in height, di ...
21 | CONSERVATION AND BIODIVERSITY
... Genetic diversity is one alternate concept of biodiversity. Genetic diversity (or variation) is the raw material for adaptation in a species. A species’ future potential for adaptation depends on the genetic diversity held in the genomes of the individuals in populations that make up the species. Th ...
... Genetic diversity is one alternate concept of biodiversity. Genetic diversity (or variation) is the raw material for adaptation in a species. A species’ future potential for adaptation depends on the genetic diversity held in the genomes of the individuals in populations that make up the species. Th ...
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.