PIF Handbook on Species Assessment and Prioritization
... evaluating data regarding the biological vulnerability of each species, whereas prioritization describes the process for utilizing these data in determining relative conservation priorities among species. Confusion sometimes results when the terms are used interchangeably, but we have strived to mai ...
... evaluating data regarding the biological vulnerability of each species, whereas prioritization describes the process for utilizing these data in determining relative conservation priorities among species. Confusion sometimes results when the terms are used interchangeably, but we have strived to mai ...
Influence of Anthropogenic Disturbances on Understory Plant
... temperature (‘heat island’ effect), average annual rainfall, soil compaction, soil alkalinity and other indicators of anthropogenic disturbance (Medley et al. 1995; Pickett et al. 2008). Furthermore, anthropogenic disturbances create the habitat for exotic species. In this study, the visitor flow ra ...
... temperature (‘heat island’ effect), average annual rainfall, soil compaction, soil alkalinity and other indicators of anthropogenic disturbance (Medley et al. 1995; Pickett et al. 2008). Furthermore, anthropogenic disturbances create the habitat for exotic species. In this study, the visitor flow ra ...
Niches and Community Interactions
... In the the experiment shown in the graph, two species of paramecia (P. aurelia and P. caudatum) were first grown in separate cultures (dashed lines) . In separate cultures, but under the same conditions, both populations grew. However, when both species were grown together in the same culture (solid ...
... In the the experiment shown in the graph, two species of paramecia (P. aurelia and P. caudatum) were first grown in separate cultures (dashed lines) . In separate cultures, but under the same conditions, both populations grew. However, when both species were grown together in the same culture (solid ...
Cain – Monitoring Results: Mammals
... – Estimate biomass of grasses, key browse and mast producing species – Estimate forage quality for mule deer and elk • Collection of key forage plants – Nitrogen, ADF, NDF, digestibility, tannin (browse) ...
... – Estimate biomass of grasses, key browse and mast producing species – Estimate forage quality for mule deer and elk • Collection of key forage plants – Nitrogen, ADF, NDF, digestibility, tannin (browse) ...
Plants and insects in early oldfield succession
... In the calculation of density we make the assumption that when there is more than one touch of a given species for a given height-profile pin, only one individual plant has been touched. Likewise, we assume that the presence of a species at a given presence/absence pin indicates that only one indivi ...
... In the calculation of density we make the assumption that when there is more than one touch of a given species for a given height-profile pin, only one individual plant has been touched. Likewise, we assume that the presence of a species at a given presence/absence pin indicates that only one indivi ...
Impact of Argentine ants (Linepithema humile) on an arboreal ant
... closely correlated with richness of arthropods (Southwood et al. 1982; Basset and Kitching 1991; Majer and Delabie 1999). We found that ant species richness depended on tree size, hence, when a tree was large enough, as many as four different native species were found together (Table 4). Relationshi ...
... closely correlated with richness of arthropods (Southwood et al. 1982; Basset and Kitching 1991; Majer and Delabie 1999). We found that ant species richness depended on tree size, hence, when a tree was large enough, as many as four different native species were found together (Table 4). Relationshi ...
CHARACTERIZATION OF ENVIRONMENTAL PARAMETERS AND
... The average temperature of the four zones for the three different trips in 2012. The temperature dropped every month. The general temperature pattern was that the greatest differences are at high zones and it gradually moves towards the ocean temperature the lower it moves in the intertidal. The err ...
... The average temperature of the four zones for the three different trips in 2012. The temperature dropped every month. The general temperature pattern was that the greatest differences are at high zones and it gradually moves towards the ocean temperature the lower it moves in the intertidal. The err ...
Community Maturity, Species Saturation and the Variant Diversity
... passes of the drill were minimized by passing the drill over each plot the same number of times. We seeded two, eight and 16 native perennial species at LW, DL and SH, and two, four, eight, 16 and 32 species at NP to ensure that the total diversity (seeded + resident species) in some plots exceeded ...
... passes of the drill were minimized by passing the drill over each plot the same number of times. We seeded two, eight and 16 native perennial species at LW, DL and SH, and two, four, eight, 16 and 32 species at NP to ensure that the total diversity (seeded + resident species) in some plots exceeded ...
The Role of Fire in Managing of the Northern Great Plains
... this region are examples of communities that, because of higher moisture, likely burned less frequently than uplands. Riparian zones throughout the region, and woody draws in the more arid portions, tend to be green throughout most of the growing season, have higher relative humidities than adjacent ...
... this region are examples of communities that, because of higher moisture, likely burned less frequently than uplands. Riparian zones throughout the region, and woody draws in the more arid portions, tend to be green throughout most of the growing season, have higher relative humidities than adjacent ...
Biodiversity Conservation and Sustainable Development
... does not make an identical contribution to overall genetic diversity. In particular those genes which control fundamental biochemical processes are strongly conserved across different taxa and generally show little variations, although such variation that does exist may exert a strong effect on the ...
... does not make an identical contribution to overall genetic diversity. In particular those genes which control fundamental biochemical processes are strongly conserved across different taxa and generally show little variations, although such variation that does exist may exert a strong effect on the ...
Slide 1
... - When predators are excluded, mussels outcompete other species and the diversity of the system crashes to a single species - a mussel bed ...
... - When predators are excluded, mussels outcompete other species and the diversity of the system crashes to a single species - a mussel bed ...
Vanellus gregarius, Sociable Lapwing
... systematically between years (Sheldon et al. 2013). Diet It feeds chiefly on insects including Orthoptera, Coleoptera, and moth larvae (del Hoyo et al. 1996). It also takes arachnids and frequently small amounts of plant matter including grains, leaves and flowers (del Hoyo et al. 1996). Small stone ...
... systematically between years (Sheldon et al. 2013). Diet It feeds chiefly on insects including Orthoptera, Coleoptera, and moth larvae (del Hoyo et al. 1996). It also takes arachnids and frequently small amounts of plant matter including grains, leaves and flowers (del Hoyo et al. 1996). Small stone ...
Penhill`s Natural Vegetation
... Two of the problems facing conservation in South Africa are limited resources and land reform initiatives. These problems, among others, make it necessary to prioritise. Prioritisation initiatives may be based on species distribution data or aggregate categories such as land classes. A combination o ...
... Two of the problems facing conservation in South Africa are limited resources and land reform initiatives. These problems, among others, make it necessary to prioritise. Prioritisation initiatives may be based on species distribution data or aggregate categories such as land classes. A combination o ...
Drawing ecological inferences from coincident patterns of
... insect species tend to show intraspecific patterns consistent with Bergmann’s rule, perhaps due to energetic processes, while within large-bodied species, there is a tendency for reverse Bergmann clines (Shelomi 2012). This latter result suggests that, for insects, selection on body size across temp ...
... insect species tend to show intraspecific patterns consistent with Bergmann’s rule, perhaps due to energetic processes, while within large-bodied species, there is a tendency for reverse Bergmann clines (Shelomi 2012). This latter result suggests that, for insects, selection on body size across temp ...
Year-to-year variation in plant competition in a mountain grassland
... Analysis of changes in total above-ground biomass included onset and removal as main factors and aboveground biomass prior to the treatment as covariate. Festuca rubra biomass (in untreated variants) was also included as a covariate. Since Mauchly’s test indicated a significant violation of the assu ...
... Analysis of changes in total above-ground biomass included onset and removal as main factors and aboveground biomass prior to the treatment as covariate. Festuca rubra biomass (in untreated variants) was also included as a covariate. Since Mauchly’s test indicated a significant violation of the assu ...
Land Use, Biodiversity, and Ecosystem Integrity
... different phyla differ from one another vastly more than do different species in, for instance, the same family. At these higher levels, marine life is far more diverse, containing twothirds of all the world's phyla and classes. There is also diversity at a finer taxonomic level than that of species ...
... different phyla differ from one another vastly more than do different species in, for instance, the same family. At these higher levels, marine life is far more diverse, containing twothirds of all the world's phyla and classes. There is also diversity at a finer taxonomic level than that of species ...
Linking Community and Ecosystem Ecology (LINKECOL)
... There has recently been increased attention on the magnitude and impact of biological invasions. Alien ...
... There has recently been increased attention on the magnitude and impact of biological invasions. Alien ...
Geographic and taxonomic distribution of a positive interaction: ant
... the genus Ficus. Previous experimental studies at a few locations in South Africa indicated that Ficus sur indirectly bene®ted from the presence of a homopteran (Hilda patruelis) because it attracted ants (primarily Pheidole megacephala) that reduced the eects of both pre-dispersal ovule gallers an ...
... the genus Ficus. Previous experimental studies at a few locations in South Africa indicated that Ficus sur indirectly bene®ted from the presence of a homopteran (Hilda patruelis) because it attracted ants (primarily Pheidole megacephala) that reduced the eects of both pre-dispersal ovule gallers an ...
Extinction considerations for diadromous fishes
... Extinction considerations for diadromous fishes before any harvest is allowed provides much greater protection from extinction and greater long-term economic benefits than the current strategy. A modification of the threshold strategy to allow harvet rates to increase with increasing stock biomass ...
... Extinction considerations for diadromous fishes before any harvest is allowed provides much greater protection from extinction and greater long-term economic benefits than the current strategy. A modification of the threshold strategy to allow harvet rates to increase with increasing stock biomass ...
Rewilding: Pitfalls and Opportunities for Moths and Butterflies
... terflies are perceived to be more susceptible than moths to farmland abandonment, which is typically accompanied by scrub and forest encroachment, shading out formerly sun-lit biotopes (van Swaay et al. 2010). Although day-flying Lepidoptera are numerically the exception to the nocturnal norm, sound ...
... terflies are perceived to be more susceptible than moths to farmland abandonment, which is typically accompanied by scrub and forest encroachment, shading out formerly sun-lit biotopes (van Swaay et al. 2010). Although day-flying Lepidoptera are numerically the exception to the nocturnal norm, sound ...
Connecticut State Museum of Natural History @ UConn
... “race against time” aspect of the event, makes the event more impressionable to lay people as everything occurs in just 24 hours, and allows us to have a closing ceremony where we can announce the final tally. The base camp is the “hub” of the BioBlitz. It is an area that has a building, pavilion, o ...
... “race against time” aspect of the event, makes the event more impressionable to lay people as everything occurs in just 24 hours, and allows us to have a closing ceremony where we can announce the final tally. The base camp is the “hub” of the BioBlitz. It is an area that has a building, pavilion, o ...
Regeneration of Sponges in Ecological Context
... (Linnaeus 1758), that was present at the Sponge Haven site for 2 days (but is not a normal resident). Additional wounds in Haliclona curacaoensis had the characteristic shape of bites of spotted trunkfish, Lactophrys bicaudalis (Linneaus 1758), that are rare but normal residents of these Twin Cays s ...
... (Linnaeus 1758), that was present at the Sponge Haven site for 2 days (but is not a normal resident). Additional wounds in Haliclona curacaoensis had the characteristic shape of bites of spotted trunkfish, Lactophrys bicaudalis (Linneaus 1758), that are rare but normal residents of these Twin Cays s ...
Ecological Restoration
... nature. They said that succession proceeded to a fixed, classic condition, which they called a climax state and defined as a steady-state stage that would persist indefmitely and have maximum organic matter, maximum storage of chemical elements, and maximum biological diversity. At that time, people ...
... nature. They said that succession proceeded to a fixed, classic condition, which they called a climax state and defined as a steady-state stage that would persist indefmitely and have maximum organic matter, maximum storage of chemical elements, and maximum biological diversity. At that time, people ...
poster michael humboldt nuevo logo
... The hake size structure was based on the population size structure estimated from the length frequencies recorded at each trawl station. The length frequency sample of each trawl was weighted to the total hake catch of the trawl, to the stratum, to the sub-area and finally to the total covered area ...
... The hake size structure was based on the population size structure estimated from the length frequencies recorded at each trawl station. The length frequency sample of each trawl was weighted to the total hake catch of the trawl, to the stratum, to the sub-area and finally to the total covered area ...
DODSON, STANLEY Predicting crustacean zooplankton species
... (or in a lake) is predicted by a power function, characterized by the linear relationship between the log number species and log island area. There are three major hypotheses for why species-area relationships exist (Angermeier and Schlosser 1989). More species on larger islands may be due to lower ...
... (or in a lake) is predicted by a power function, characterized by the linear relationship between the log number species and log island area. There are three major hypotheses for why species-area relationships exist (Angermeier and Schlosser 1989). More species on larger islands may be due to lower ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.