Section 300.18 Submerged Aquatic Vegetation and
... aquatic plant which is capable of both vegetative and sexual growth. Widgeon grass exists in saline and brackish waters, rarely tidal fresh waters, salt ponds and pools within salt marshes, inland saline waters and rarely fresh waters. 4. SAV habitat is the sediment and water column, and the physica ...
... aquatic plant which is capable of both vegetative and sexual growth. Widgeon grass exists in saline and brackish waters, rarely tidal fresh waters, salt ponds and pools within salt marshes, inland saline waters and rarely fresh waters. 4. SAV habitat is the sediment and water column, and the physica ...
Oral Presentations - Alaska Bird Conference
... findings show that females of higher quality and reproductive experience drive double brooding in this population, and that these individuals are especially able to adopt a more flexible breeding regime in years characterized by high marine productivity. ...
... findings show that females of higher quality and reproductive experience drive double brooding in this population, and that these individuals are especially able to adopt a more flexible breeding regime in years characterized by high marine productivity. ...
Indirect interactions and plant community structure
... species on another has been experimentally quantified both in pairwise interactions and in complex communities without the disturbance of removals – i.e. without creating potential nonequilibrium conditions. To our knowledge all field studies of indirect interactions have utilized removal experiment ...
... species on another has been experimentally quantified both in pairwise interactions and in complex communities without the disturbance of removals – i.e. without creating potential nonequilibrium conditions. To our knowledge all field studies of indirect interactions have utilized removal experiment ...
secondary succession in an experimentally fragmented
... Appendix A). Following increased woody plant colonization in the early 1990s, 4 3 4 m quadrats were constructed in 1994 around each 1 3 1 m quadrat, and all woody stems .2 m tall were thereafter tagged and measured annually through 2000 (height, diameter at 1.3 m, diameter at base). In 2001 these me ...
... Appendix A). Following increased woody plant colonization in the early 1990s, 4 3 4 m quadrats were constructed in 1994 around each 1 3 1 m quadrat, and all woody stems .2 m tall were thereafter tagged and measured annually through 2000 (height, diameter at 1.3 m, diameter at base). In 2001 these me ...
"SPOTTED HYENAS: MISUNDERSTOOD INDICATORS OFF
... worry very much about protecting a species they don’t care for. However, we now have reason to believe that Spotted ...
... worry very much about protecting a species they don’t care for. However, we now have reason to believe that Spotted ...
Preface 1 PDF
... regain dominance in landscapes rather than by some fixed set of end goals for how the landscape and biodiversity should look like. Rewilding is about having large populations of large herbivores, with space for movements tracking the seasons and interannual variation in resources, but also about hav ...
... regain dominance in landscapes rather than by some fixed set of end goals for how the landscape and biodiversity should look like. Rewilding is about having large populations of large herbivores, with space for movements tracking the seasons and interannual variation in resources, but also about hav ...
Bee diversity effects on pollination depend on functional
... April 2008. Some plants started flowering in early June. On 12–16 June, early blooming flowers were cut. By the end of June most species were in flower. The main experimental period started with the introduction of target bee species on 3–5 July and lasted five weeks until 8 August 2008. Fruits were har ...
... April 2008. Some plants started flowering in early June. On 12–16 June, early blooming flowers were cut. By the end of June most species were in flower. The main experimental period started with the introduction of target bee species on 3–5 July and lasted five weeks until 8 August 2008. Fruits were har ...
(1999) Consequences of the Allee effect for behaviour, ecology and
... a situation that might arise in a flock of another species, where collective vigilance shows little increase above a small number of birds, but in flocks below that size, mortality due to predation is almost 100%). ...
... a situation that might arise in a flock of another species, where collective vigilance shows little increase above a small number of birds, but in flocks below that size, mortality due to predation is almost 100%). ...
Monitoring data from citizen-science programs
... in the world’s grasslands Ana D Davidson1,2*, James K Detling3, and James H Brown1 The world’s grassland ecosystems are shaped in part by a key functional group of social, burrowing, herbivorous mammals. Through herbivory and ecosystem engineering they create distinctive and important habitats for m ...
... in the world’s grasslands Ana D Davidson1,2*, James K Detling3, and James H Brown1 The world’s grassland ecosystems are shaped in part by a key functional group of social, burrowing, herbivorous mammals. Through herbivory and ecosystem engineering they create distinctive and important habitats for m ...
Habitat Variability and Complexity in the Upper San Francisco Estuary
... Estuary, however, is one of the most highly modified and controlled estuaries in the world (Nichols et al. 1986). As a consequence, the estuarine ecosystem has lost much of its former variability and complexity and has recently suffered major declines of many of its fish resources (Sommer et al. 200 ...
... Estuary, however, is one of the most highly modified and controlled estuaries in the world (Nichols et al. 1986). As a consequence, the estuarine ecosystem has lost much of its former variability and complexity and has recently suffered major declines of many of its fish resources (Sommer et al. 200 ...
Habitat Variability and Complexity in the Upper San Francisco Estuary
... Estuary, however, is one of the most highly modified and controlled estuaries in the world (Nichols et al. 1986). As a consequence, the estuarine ecosystem has lost much of its former variability and complexity and has recently suffered major declines of many of its fish resources (Sommer et al. 200 ...
... Estuary, however, is one of the most highly modified and controlled estuaries in the world (Nichols et al. 1986). As a consequence, the estuarine ecosystem has lost much of its former variability and complexity and has recently suffered major declines of many of its fish resources (Sommer et al. 200 ...
Feral Swine: Impacts of Invasive Species
... are managed as game species in some states, while other states have little or no regulations concerning their control and eradication. Variability in regulations across political boundaries can complicate management efforts. Where feral swine are well established, multiple methods of control are nee ...
... are managed as game species in some states, while other states have little or no regulations concerning their control and eradication. Variability in regulations across political boundaries can complicate management efforts. Where feral swine are well established, multiple methods of control are nee ...
Algeria - BirdLife Data Zone
... wetlands east of Annaba. Many rivers in this region drain north towards the Mediterranean, including the principal river in Algeria, the Chélif, which flows out of the Tell Atlas for 725 km to reach the sea at Mostaganem. To the south, rivers discharge on to the Hauts Plateaux where their flood wate ...
... wetlands east of Annaba. Many rivers in this region drain north towards the Mediterranean, including the principal river in Algeria, the Chélif, which flows out of the Tell Atlas for 725 km to reach the sea at Mostaganem. To the south, rivers discharge on to the Hauts Plateaux where their flood wate ...
Domestic and Feral Cats - Tucson Audubon Society
... descendants of wild cats of northern Africa. Cats that escape to the wild at an early age or that are born of wild cats are unsocialized are referred to as feral cats. Stray cats are house cats that can be caught and resocialized. Free-ranging house cats are those the live with people but that are a ...
... descendants of wild cats of northern Africa. Cats that escape to the wild at an early age or that are born of wild cats are unsocialized are referred to as feral cats. Stray cats are house cats that can be caught and resocialized. Free-ranging house cats are those the live with people but that are a ...
Impact of pocket gopher disturbance on plant species diversity in a
... (light, nutrients, water) than those in undisturbed habitat. This increased resource availability p r o b a b l y accounts for the significantly higher growth rates. Both Ipomopsis aggregata and Penstemon barbatus were m o r e likely to flower when they were growing in disturbed habitat. L aggregata ...
... (light, nutrients, water) than those in undisturbed habitat. This increased resource availability p r o b a b l y accounts for the significantly higher growth rates. Both Ipomopsis aggregata and Penstemon barbatus were m o r e likely to flower when they were growing in disturbed habitat. L aggregata ...
biogeographic atlas of the southern ocean
... level (Dettai et al. 2011, Diaz et al. 2011). Therefore, one may expect that systematics of Antarctic echinoids experience significant changes in the coming decade. For instance, it is noteworthy that no cryptic species has ever been reported in Antarctic echinoids by contrast with many other marine ...
... level (Dettai et al. 2011, Diaz et al. 2011). Therefore, one may expect that systematics of Antarctic echinoids experience significant changes in the coming decade. For instance, it is noteworthy that no cryptic species has ever been reported in Antarctic echinoids by contrast with many other marine ...
Biological invasions: a field synopsis, systematic review, and
... Species introductions of anthropogenic origins are a major aspect of rapid ecological change globally. Research on biological invasions has generated a large literature on many different aspects of this phenomenon. Here, we describe and categorize some aspects of this literature, to better understan ...
... Species introductions of anthropogenic origins are a major aspect of rapid ecological change globally. Research on biological invasions has generated a large literature on many different aspects of this phenomenon. Here, we describe and categorize some aspects of this literature, to better understan ...
Interactions between sea urchin grazing and prey diversity on
... grouping species richness and urchins into separate bins by amount, and then using these binned values to assign urchins to plots in a manner that created all possible combinations of urchin density and prey richness (see Appendix A for full design). Specifically, we grouped 15 levels of urchin densi ...
... grouping species richness and urchins into separate bins by amount, and then using these binned values to assign urchins to plots in a manner that created all possible combinations of urchin density and prey richness (see Appendix A for full design). Specifically, we grouped 15 levels of urchin densi ...
Biodiversity in a Changing World
... • Understand the importance of biodiversity. • Understand what effects habitat change can have on the biodiversity of an area. • Understand how human activity affects biodiversity. • Be able to estimate the plant biodiversity in a given area. • Be able to offer solutions for increasing biodiversity. ...
... • Understand the importance of biodiversity. • Understand what effects habitat change can have on the biodiversity of an area. • Understand how human activity affects biodiversity. • Be able to estimate the plant biodiversity in a given area. • Be able to offer solutions for increasing biodiversity. ...
Investigation of threats to the Christmas Island Pipistrelle.
... David James, Parks Australia North, Christmas Island, for all his assistance while we were on the island, as well as during the preparation phase of this study and subsequent to the field work, especially with respect to the infra-red cameras, roost watches and detector monitoring. We would also lik ...
... David James, Parks Australia North, Christmas Island, for all his assistance while we were on the island, as well as during the preparation phase of this study and subsequent to the field work, especially with respect to the infra-red cameras, roost watches and detector monitoring. We would also lik ...
Environment Plan 2012–2017 - Phillip Island Nature Parks
... Phillip Island is part of Bunurong/Boon Wurrung country, and the Nature Parks acknowledges their custodianship of Phillip Island and surrounds. The Nature Parks is part of the United Nations Scientific and Cultural Organisation (UNESCO) Western Port Biosphere Reserve, and abuts the Western Port Rams ...
... Phillip Island is part of Bunurong/Boon Wurrung country, and the Nature Parks acknowledges their custodianship of Phillip Island and surrounds. The Nature Parks is part of the United Nations Scientific and Cultural Organisation (UNESCO) Western Port Biosphere Reserve, and abuts the Western Port Rams ...
Introduction Poaceae (R.Br.) Barnh. is the fourth
... human subsistence and economy. All our cereals and millets are grasses that have been ...
... human subsistence and economy. All our cereals and millets are grasses that have been ...
Pronghorn Briefing Document for Sagebrush Strategy
... relationship/dependency of pronghorn and sagebrush (by taxa), broken down by geographic area. We are likely to ultimately use ecoregions, but other breakdowns work particularly if based on ecological rather than political boundaries. It would be helpful if areas where sagebrush is particularly criti ...
... relationship/dependency of pronghorn and sagebrush (by taxa), broken down by geographic area. We are likely to ultimately use ecoregions, but other breakdowns work particularly if based on ecological rather than political boundaries. It would be helpful if areas where sagebrush is particularly criti ...
Treasures - Long Island Sound Study
... –Estuaries are among the most productive ecosystems in the world, providing feeding, breeding, nesting, and nursery areas for many animals. – They are water bodies of constantly changing conditions, such as temperature and salinity. – Plants and animals that live in estuaries are able to tolerat ...
... –Estuaries are among the most productive ecosystems in the world, providing feeding, breeding, nesting, and nursery areas for many animals. – They are water bodies of constantly changing conditions, such as temperature and salinity. – Plants and animals that live in estuaries are able to tolerat ...
active organism Chrysoperla carnea
... The application is for use against aphids in green-houses and tunnels. Gulløyelarver was used in Norway from 1985-1993. An assessment in 2001 concluded however that the use of products with Chrysoperla carnea could represent an environmental risk since it was not known if the species in the products ...
... The application is for use against aphids in green-houses and tunnels. Gulløyelarver was used in Norway from 1985-1993. An assessment in 2001 concluded however that the use of products with Chrysoperla carnea could represent an environmental risk since it was not known if the species in the products ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.