4010 Northern Atlantic wet heaths with Erica tetralix
... Main habitat features, ecology and variability North Atlantic wet heath is dominated by dwarf shrub species and usually occurs on acidic, nutrient-poor substrates, such as shallow peats (<0.5m) or sandy soils with impeded drainage. The community includes mixtures of Erica tetralix (cross-leaved heat ...
... Main habitat features, ecology and variability North Atlantic wet heath is dominated by dwarf shrub species and usually occurs on acidic, nutrient-poor substrates, such as shallow peats (<0.5m) or sandy soils with impeded drainage. The community includes mixtures of Erica tetralix (cross-leaved heat ...
Ugar Island - Torres Strait Regional Authority
... located 160 kilometers north east of Thursday Island. The island is formed on a platform of massively bedded basalt, up to 30m high, that is the result of Pleistocene age volcanic activity, and is part of the Eastern Group of Torres Strait Islands which includes Mer (Murray) and Erub (Darnley) and a ...
... located 160 kilometers north east of Thursday Island. The island is formed on a platform of massively bedded basalt, up to 30m high, that is the result of Pleistocene age volcanic activity, and is part of the Eastern Group of Torres Strait Islands which includes Mer (Murray) and Erub (Darnley) and a ...
The contributions of livestock species and breeds to
... When grasslands are lightly grazed, biodiversity tends to benefit, compared with intensive grazing or no grazing at all. Under careful management, livestock increase the diversity of habitats in the landscape (mosaic landscapes and mini-habitats). By altering the vegetation, they often maintain vita ...
... When grasslands are lightly grazed, biodiversity tends to benefit, compared with intensive grazing or no grazing at all. Under careful management, livestock increase the diversity of habitats in the landscape (mosaic landscapes and mini-habitats). By altering the vegetation, they often maintain vita ...
booklet of abstracts
... Pathogens such as viruses, bacteria and parasites can impair host performance. However, some studies have found positive relationships between infection status and cognitive performance suggesting that the overall impact of pathogens on hosts is unclear. How does exposure to pathogens affect host co ...
... Pathogens such as viruses, bacteria and parasites can impair host performance. However, some studies have found positive relationships between infection status and cognitive performance suggesting that the overall impact of pathogens on hosts is unclear. How does exposure to pathogens affect host co ...
The ghosts of competition past - Oceanographic Environmental
... recent adaptation to high-latitude environments (19). Pinnipeds likely evolved in high-latitude environments and subsequently evolved adaptations to warmer environments (29,64). Sharks evolved adaptations to estuarine, coastal and pelagic environments (7,11,48). In contrast, pinnipeds have a much mo ...
... recent adaptation to high-latitude environments (19). Pinnipeds likely evolved in high-latitude environments and subsequently evolved adaptations to warmer environments (29,64). Sharks evolved adaptations to estuarine, coastal and pelagic environments (7,11,48). In contrast, pinnipeds have a much mo ...
Inglés
... per decade since the 1840s, with that rate continuing unabated. A further 55 species from that original fauna are now threatened, and an additional 42 are Near Threatened. Although many factors have contributed to these declines and extinctions, and the array of threats varies amongst individual spe ...
... per decade since the 1840s, with that rate continuing unabated. A further 55 species from that original fauna are now threatened, and an additional 42 are Near Threatened. Although many factors have contributed to these declines and extinctions, and the array of threats varies amongst individual spe ...
University of Groningen Holism and reductionism in biology
... competitive exclusion of one of the species. Which species will be excluded depends on the initial conditions: the species with the larger initial population will drive the other to local extinction. In case 4, finally, both species have smaller interspecific effects on each other than they have int ...
... competitive exclusion of one of the species. Which species will be excluded depends on the initial conditions: the species with the larger initial population will drive the other to local extinction. In case 4, finally, both species have smaller interspecific effects on each other than they have int ...
Collapse of the world`s largest herbivores
... every major ecosystem on Earth except Antarctica. Here, we consider the 74 wild herbivore species with mean adult body masses ≥100 kg. These largest species represent four orders (Proboscidea, Primates, Cetartiodactyla, and Perissodactyla) and 11 families (Elephantidae, Rhinocerotidae, Hippopotamida ...
... every major ecosystem on Earth except Antarctica. Here, we consider the 74 wild herbivore species with mean adult body masses ≥100 kg. These largest species represent four orders (Proboscidea, Primates, Cetartiodactyla, and Perissodactyla) and 11 families (Elephantidae, Rhinocerotidae, Hippopotamida ...
Aquatic Ecosystems
... current velocity, and substrate. Such factors combine to determine the degree of habitat diversity in a given stream segment. Fish species richness tends to increase downstream as gradient decreases and stream size increases. Species richness is generally lowest in small headwater streams due to inc ...
... current velocity, and substrate. Such factors combine to determine the degree of habitat diversity in a given stream segment. Fish species richness tends to increase downstream as gradient decreases and stream size increases. Species richness is generally lowest in small headwater streams due to inc ...
Spatial variation in keystone effects: small mammal diversity
... animals were released at their point of capture. If a marked animal was captured in both early and late trapping sessions, it was counted once for each session (twice for the year). Few animals were captured in both sessions. All animal trapping and handling procedures were approved by the Instituti ...
... animals were released at their point of capture. If a marked animal was captured in both early and late trapping sessions, it was counted once for each session (twice for the year). Few animals were captured in both sessions. All animal trapping and handling procedures were approved by the Instituti ...
oregon`s groundfish fisheries and investigations in 2008
... continued in 2008. Starting in November 2005 major ports were sampled year round. We continue to estimate catch during unsampled periods in minor ports. The estimates are based on the relationship of effort and catch in minor ports relative to major ports observed during summer-fall periods when all ...
... continued in 2008. Starting in November 2005 major ports were sampled year round. We continue to estimate catch during unsampled periods in minor ports. The estimates are based on the relationship of effort and catch in minor ports relative to major ports observed during summer-fall periods when all ...
Declining amphibian populations and possible ecological
... rural savanna regions of West Africa, freshwater ecosystems are essential water resources for humans and cattle. Altering these ecosystems therefore may have important economic and health consequences. Prospective impacts on water chemistry, algae and aquatic invertebrate taxa are highlighted. Key w ...
... rural savanna regions of West Africa, freshwater ecosystems are essential water resources for humans and cattle. Altering these ecosystems therefore may have important economic and health consequences. Prospective impacts on water chemistry, algae and aquatic invertebrate taxa are highlighted. Key w ...
The Ecological Significance of the Herbaceous Layer in
... Biodiversity Loss of biodiversity is occurring on a global scale and at an ever-increasing rate. This is especially true for forest ecosystems, which often are near areas of high human population density. The resultant land use (including forest use, urban development, and conversion to agriculture) ...
... Biodiversity Loss of biodiversity is occurring on a global scale and at an ever-increasing rate. This is especially true for forest ecosystems, which often are near areas of high human population density. The resultant land use (including forest use, urban development, and conversion to agriculture) ...
Impact of argentine ants (Linepithema humile, Mayr) on saproxylic
... impact of removing fuelwood on cavity-nesting birds and mammals (Du Plessis 1995). The collection and removal of deadwood, for domestic fuel or for aesthetic reasons (by park managers) are major threats to saproxylic communities. Although these practices do not take place in the Cape Peninsula, past ...
... impact of removing fuelwood on cavity-nesting birds and mammals (Du Plessis 1995). The collection and removal of deadwood, for domestic fuel or for aesthetic reasons (by park managers) are major threats to saproxylic communities. Although these practices do not take place in the Cape Peninsula, past ...
Traitbased tests of coexistence mechanisms
... community and how they act on functional trait variation. For example, N deposition could cause dramatic decreases in diversity if resource partitioning is the key coexistence mechanism, but might have a minimal effect if coexistence is mediated primarily by finescale spatial variation in soil moist ...
... community and how they act on functional trait variation. For example, N deposition could cause dramatic decreases in diversity if resource partitioning is the key coexistence mechanism, but might have a minimal effect if coexistence is mediated primarily by finescale spatial variation in soil moist ...
Consumer diversity interacts with prey defenses to drive ecosystem
... Abstract. Prey traits linking consumer diversity to ecosystem function remain poorly understood. On tropical coral reefs, herbivores promote coral dominance by suppressing competing macroalgae, but the roles of herbivore identity and diversity, macroalgal defenses, and their interactions in affectin ...
... Abstract. Prey traits linking consumer diversity to ecosystem function remain poorly understood. On tropical coral reefs, herbivores promote coral dominance by suppressing competing macroalgae, but the roles of herbivore identity and diversity, macroalgal defenses, and their interactions in affectin ...
Evaluating effects of large-scale salvage logging for
... management objectives through a variety of approaches. At the most fundamental level, the effects of current control measures (i.e. salvage logging) on wildlife populations and sustainable management indicators need to be quantified. For the scale of salvage logging operations anticipated in British ...
... management objectives through a variety of approaches. At the most fundamental level, the effects of current control measures (i.e. salvage logging) on wildlife populations and sustainable management indicators need to be quantified. For the scale of salvage logging operations anticipated in British ...
Effects of prescribed fall burning on a wetland plant community, with
... timothy (Crypsis shoenoides), quackgrass (Elytrigia repens), and canary grass (Phalaris arundinaceae) were dominant on the peninsula (Table 1). The survey revealed obvious zonation of the plant community as is commonly observed in seasonally flooded freshwater wetlands with microtopographical elevat ...
... timothy (Crypsis shoenoides), quackgrass (Elytrigia repens), and canary grass (Phalaris arundinaceae) were dominant on the peninsula (Table 1). The survey revealed obvious zonation of the plant community as is commonly observed in seasonally flooded freshwater wetlands with microtopographical elevat ...
05. Not from here - Savanna Explorer
... (WONS). If these species are planted on Aboriginal land there is a risk that they will spread from the planted area and by the time their impacts are known one way or the other it may be too late (Rae and Storrs 1999). It is imperative that landowners receive culturally appropriate information about ...
... (WONS). If these species are planted on Aboriginal land there is a risk that they will spread from the planted area and by the time their impacts are known one way or the other it may be too late (Rae and Storrs 1999). It is imperative that landowners receive culturally appropriate information about ...
Levin, S.A. (editor). Encyclopedia
... North America (Peterjohn and Sauer, 1999; Figure 2) and parts of Europe (Chamberlain and Fuller, 2001; Figure 2). These declines can be explained by the loss of grassland habitats because of changing agricultural practices, expansion of suburban development, conversion of grassland habitats to fores ...
... North America (Peterjohn and Sauer, 1999; Figure 2) and parts of Europe (Chamberlain and Fuller, 2001; Figure 2). These declines can be explained by the loss of grassland habitats because of changing agricultural practices, expansion of suburban development, conversion of grassland habitats to fores ...
Macrophytes as habitat for fauna
... In addition to being important habitats for many organisms, macrophytes are important primary producers in coastal ecosystems, and are therefore a potential food resource for the associated animals. Overgrazing sometimes occurs, showing that grazers have the potential to consume their habitat. Most ...
... In addition to being important habitats for many organisms, macrophytes are important primary producers in coastal ecosystems, and are therefore a potential food resource for the associated animals. Overgrazing sometimes occurs, showing that grazers have the potential to consume their habitat. Most ...
Eastern Cottontail
... is largely dependent upon the availability of dense cover and old field habitat. This pamphlet is designed to serve as an introduction to the habitat requirements of the eastern cottontail and to assist land managers in the development of a comprehensive cottontail management plan. The success of an ...
... is largely dependent upon the availability of dense cover and old field habitat. This pamphlet is designed to serve as an introduction to the habitat requirements of the eastern cottontail and to assist land managers in the development of a comprehensive cottontail management plan. The success of an ...
symposium 5: ecology, evolution, conservation and
... conserve biodiversity and ecosystem services in the long term. The Brazilian Ministry of Environment is working with the PACTO pela Restauração da Mata Atlântica, universities and the German Development Agency – GIZ to develop a spatial strategy focused on the definition of priority sites for biodiv ...
... conserve biodiversity and ecosystem services in the long term. The Brazilian Ministry of Environment is working with the PACTO pela Restauração da Mata Atlântica, universities and the German Development Agency – GIZ to develop a spatial strategy focused on the definition of priority sites for biodiv ...
Where and When do Species Interactions Set Range Limits?
... demographic or extinction–colonization processes (Box 1; but see [29,30]), and fewer still connect such fine-scale information to geographic range limits (but see [31]). It is even more difficult to quantify the fraction of range limits set by abiotic versus biotic factors, or when and where abiotic v ...
... demographic or extinction–colonization processes (Box 1; but see [29,30]), and fewer still connect such fine-scale information to geographic range limits (but see [31]). It is even more difficult to quantify the fraction of range limits set by abiotic versus biotic factors, or when and where abiotic v ...
Ecology of a sympatric pair of coregonid fish: Species interactions
... new or underexploited resources (Schluter evo- ...
... new or underexploited resources (Schluter evo- ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.