The global diversity of protozoa and other small species
... are very similar to one another. How can it be justified to squeeze more “new” ciliates into such a genus before rationalising the existing complement of nominal species? And if we look at the 730 “new” ciliate species described in the period 1978-1993, we find that many have been allocated to “old” ...
... are very similar to one another. How can it be justified to squeeze more “new” ciliates into such a genus before rationalising the existing complement of nominal species? And if we look at the 730 “new” ciliate species described in the period 1978-1993, we find that many have been allocated to “old” ...
Brief for CBD COP 9
... 5. In-depth Review of the Application of the Ecosystem Approach (Agenda Item 3.6) COP will review the application of the Ecosystem Approach and make a decision on improving its implementation. Its decision will be based on the recommendation XII/1 of SBSTTA 12. See page 22 of the SBSTTA 12 report. T ...
... 5. In-depth Review of the Application of the Ecosystem Approach (Agenda Item 3.6) COP will review the application of the Ecosystem Approach and make a decision on improving its implementation. Its decision will be based on the recommendation XII/1 of SBSTTA 12. See page 22 of the SBSTTA 12 report. T ...
Functional diversity and traitenvironment relationships of stream fish
... feeding would reflect the relative importance of food resources along the longitudinal gradient. Because our study was limited to wadeable streams, we could not explicitly test RCC predictions (i.e. comparisons across a broad range of stream orders). However, based on other studies of stream assembl ...
... feeding would reflect the relative importance of food resources along the longitudinal gradient. Because our study was limited to wadeable streams, we could not explicitly test RCC predictions (i.e. comparisons across a broad range of stream orders). However, based on other studies of stream assembl ...
Oceans Work Package 2 - hrsbstaff.ednet.ns.ca
... switch prey species when certain populations are low, thereby allowing prey species to persist. Apex predators not only affect population dynamics by consuming prey, but they also can control the spatial distribution of potential prey through intimidation. Fear of shark predation causes some species ...
... switch prey species when certain populations are low, thereby allowing prey species to persist. Apex predators not only affect population dynamics by consuming prey, but they also can control the spatial distribution of potential prey through intimidation. Fear of shark predation causes some species ...
The Central American land bridge: evolution at work
... widely used to document and model patterns of evolution in a wellconstrained geologic setup. The changes brought about by the slow closure of the gateway were dramatic to say the least and led to the formation of two strikingly different realms, the Caribbean Sea and the eastern Pacific Ocean. Where ...
... widely used to document and model patterns of evolution in a wellconstrained geologic setup. The changes brought about by the slow closure of the gateway were dramatic to say the least and led to the formation of two strikingly different realms, the Caribbean Sea and the eastern Pacific Ocean. Where ...
A.12 GIANT GARTER SNAKE - Butte Regional Conservation Plan
... of the flood-proneness of the area. To estimate average giant garter snakes across the landscape and to make the results of Wylie et al. (2011) more applicable to the rice in the Plan Area, the total density of snakes per lineal mile of canal habitat from all transects, including those that did not ...
... of the flood-proneness of the area. To estimate average giant garter snakes across the landscape and to make the results of Wylie et al. (2011) more applicable to the rice in the Plan Area, the total density of snakes per lineal mile of canal habitat from all transects, including those that did not ...
Relationships between biodiversity and
... explained 31% of the variability in declining bird populations, suggesting that intensification of a single crop type can impact diversity (Donald et al., 2001). There is evidence, however, that agri-environment schemes enacted by many European countries to encourage wildlife have led to resurgence o ...
... explained 31% of the variability in declining bird populations, suggesting that intensification of a single crop type can impact diversity (Donald et al., 2001). There is evidence, however, that agri-environment schemes enacted by many European countries to encourage wildlife have led to resurgence o ...
Metaâ•`analysis of the effects of small mammal
... relevant research on European rabbits, vizcachas, and marmots, which with woodchucks were the only species above 1 kg included in our database. Based on the species identified during this phase, we conducted searches in Web of Science and Google Scholar using the terms ‘richness’, ‘diversity’ and ‘b ...
... relevant research on European rabbits, vizcachas, and marmots, which with woodchucks were the only species above 1 kg included in our database. Based on the species identified during this phase, we conducted searches in Web of Science and Google Scholar using the terms ‘richness’, ‘diversity’ and ‘b ...
1 BILLING CODE 3510-22-P DEPARTMENT OF
... positive 90-day finding (79 FR 52276) for the orange clownfish announcing that the petition presented substantial scientific or commercial information indicating the petitioned action of listing the orange clownfish may be warranted and explained the basis for that finding. We also announced a nega ...
... positive 90-day finding (79 FR 52276) for the orange clownfish announcing that the petition presented substantial scientific or commercial information indicating the petitioned action of listing the orange clownfish may be warranted and explained the basis for that finding. We also announced a nega ...
Forest Management for Reptiles and Amphibians
... consideration for the unique physical and biological characteristics of each property, as well as the particular goals of the landowner or manager. Amphibians and reptiles are vital components of healthy forest ecosystems but have biological and ecological needs that differ from other wildlife. To t ...
... consideration for the unique physical and biological characteristics of each property, as well as the particular goals of the landowner or manager. Amphibians and reptiles are vital components of healthy forest ecosystems but have biological and ecological needs that differ from other wildlife. To t ...
overview - Santa Fe Institute
... describe examples from a wide range of ecosystem types. Work in progress on thresholds in social and ecological systems, as part of a joint activity between the SFI Robustness Project and Resilience Alliance, has so far identified over 60 examples in the literature. They encompass natural and manage ...
... describe examples from a wide range of ecosystem types. Work in progress on thresholds in social and ecological systems, as part of a joint activity between the SFI Robustness Project and Resilience Alliance, has so far identified over 60 examples in the literature. They encompass natural and manage ...
the role of selected animals in pollination and dispersal of
... resources for the animals. Reduced food resources may impact animal abundance and foraging behaviour, which in turn could have an effect on forest regeneration. Reduced populations or the disappearance of such frugivore species may result in the disappearance of plants that depend on these animals f ...
... resources for the animals. Reduced food resources may impact animal abundance and foraging behaviour, which in turn could have an effect on forest regeneration. Reduced populations or the disappearance of such frugivore species may result in the disappearance of plants that depend on these animals f ...
COEXISTENCE OF TEMPORALLY PARTITIONED SPINY MICE
... Abstract. Two coexisting species of spiny mice in rocky deserts in Israel temporally partition activity in opposite parts of the diel cycle. Acomys cahirinus is nocturnal and A. russatus is diurnal, although it becomes nocturnal if its congener is experimentally removed, suggesting that the temporal ...
... Abstract. Two coexisting species of spiny mice in rocky deserts in Israel temporally partition activity in opposite parts of the diel cycle. Acomys cahirinus is nocturnal and A. russatus is diurnal, although it becomes nocturnal if its congener is experimentally removed, suggesting that the temporal ...
Seasonal cycles in Ningaloo seaweed meadows367.66 KB
... Parks and Wildlife, are major primary producers and provide habitat and food for numerous fish and invertebrate species. While some seaweed meadows underwent major losses of seaweed cover over summer to winter, other meadows retained a high amount of seaweed year-round. Spatial planning of marine pa ...
... Parks and Wildlife, are major primary producers and provide habitat and food for numerous fish and invertebrate species. While some seaweed meadows underwent major losses of seaweed cover over summer to winter, other meadows retained a high amount of seaweed year-round. Spatial planning of marine pa ...
Materials and Methods - Smithsonian Tropical Research Institute
... Yet it is the possible connection between mangroves and juvenile fishes that is most often given as a key argument for their preservation, specifically that mangroves may act as a nursery area for many commercial and non-commercial fish and crustacean species. However, being an often inhospitable en ...
... Yet it is the possible connection between mangroves and juvenile fishes that is most often given as a key argument for their preservation, specifically that mangroves may act as a nursery area for many commercial and non-commercial fish and crustacean species. However, being an often inhospitable en ...
Are We Putting Our Fish in Hot Water?
... FRESHWATER ECOSYSTEMS HAVE BEEN critical to sustaining life and estab- ...
... FRESHWATER ECOSYSTEMS HAVE BEEN critical to sustaining life and estab- ...
Great Sandy Marine Park
... breeding grounds in the northern hemisphere and their non-breeding areas in the south. During migration, which takes several weeks, shorebirds rely on a chain of highly productive wetlands to rest and feed, building up sufficient energy to fuel the next phase of their journey. Many birds visiting th ...
... breeding grounds in the northern hemisphere and their non-breeding areas in the south. During migration, which takes several weeks, shorebirds rely on a chain of highly productive wetlands to rest and feed, building up sufficient energy to fuel the next phase of their journey. Many birds visiting th ...
restoration of mediterranean - type woodlands and shrublands
... is strong enough to influence current restoration approaches, of which there are a large number indeed in the various MCRs. As elsewhere, the first step towards restoration is to identify and halt degradation processes. Such processes affecting MCRs today are land degradation produced by long-term o ...
... is strong enough to influence current restoration approaches, of which there are a large number indeed in the various MCRs. As elsewhere, the first step towards restoration is to identify and halt degradation processes. Such processes affecting MCRs today are land degradation produced by long-term o ...
North-East Atlantic and Baltic Sea Health Check
... The Arctic region is home to some of the world’s largest fish stocks and supports a rich fauna, including some of the top predators in the marine environment, such as polar bears, baleen whales, large toothed whales, gulls and other sea bird species. The slow growth rate and often long life span of ...
... The Arctic region is home to some of the world’s largest fish stocks and supports a rich fauna, including some of the top predators in the marine environment, such as polar bears, baleen whales, large toothed whales, gulls and other sea bird species. The slow growth rate and often long life span of ...
Sequentially assembled food webs and extremum principles in
... communities of eight species were constructed from each species pool. Using the same number of species throughout facilitates comparison of the communities. The number of species was chosen to be eight on the grounds that this was near the median size of assembled communities, and not too big to pro ...
... communities of eight species were constructed from each species pool. Using the same number of species throughout facilitates comparison of the communities. The number of species was chosen to be eight on the grounds that this was near the median size of assembled communities, and not too big to pro ...
Components of breeding performance in two competing species
... Newton 1998, Pä rt 2001, Kokko et al. 2004), most studies concentrate just on one of these topics, i.e. habitat or individual quality, or the available data do not allow the proper separation of their relative importance in the studied populations. The concept of individual quality was mainly propo ...
... Newton 1998, Pä rt 2001, Kokko et al. 2004), most studies concentrate just on one of these topics, i.e. habitat or individual quality, or the available data do not allow the proper separation of their relative importance in the studied populations. The concept of individual quality was mainly propo ...
Environmental heterogeneity, species diversity and
... at small (within community) scales, whereas b-niches refer to the species responses to factors occurring at large spatial scales (Pickett & Bazzaz 1978; Ackerly & Cornwell 2007). Spatial heterogeneity occurs simultaneously at different scales. At larger spatial scales, heterogeneity is expressed mai ...
... at small (within community) scales, whereas b-niches refer to the species responses to factors occurring at large spatial scales (Pickett & Bazzaz 1978; Ackerly & Cornwell 2007). Spatial heterogeneity occurs simultaneously at different scales. At larger spatial scales, heterogeneity is expressed mai ...
PDF - 270 KB
... turtles are particularly vulnerable to population declines due to the loss of adults to road mortality. Also, populations with few individuals are more affected because of the relative importance of each individual in maintaining a healthy population. Temporal and seasonal variations are also eviden ...
... turtles are particularly vulnerable to population declines due to the loss of adults to road mortality. Also, populations with few individuals are more affected because of the relative importance of each individual in maintaining a healthy population. Temporal and seasonal variations are also eviden ...
spatial variation in molluscan assemblages from coralline turfs of
... opportunity for infaunal molluscs as well as frond-dwelling species (Gibbons, 1988). The fronds themselves and their associated epiphytes (attached algae) may also provide a nutritional source for grazing snails (Hay, Duffy & Pfister, 1987) or chemicals given off by the fronds may attract or repel mo ...
... opportunity for infaunal molluscs as well as frond-dwelling species (Gibbons, 1988). The fronds themselves and their associated epiphytes (attached algae) may also provide a nutritional source for grazing snails (Hay, Duffy & Pfister, 1987) or chemicals given off by the fronds may attract or repel mo ...
european mink
... ofWestern polecat, pollution and road-kills) have a minor significance. Therefore three major agents (often acting in concert) have to be targeted while devising the conservation strategy and goals. Over-hunting and habitat-loss can be addressed by conventional conservation measures (such as prohibi ...
... ofWestern polecat, pollution and road-kills) have a minor significance. Therefore three major agents (often acting in concert) have to be targeted while devising the conservation strategy and goals. Over-hunting and habitat-loss can be addressed by conventional conservation measures (such as prohibi ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.