View/Open - Smithsonian Institution
... worldwide, and typically feed on and inhabit algae (Rathbun 1925; Hines 1982). We studied the three most abundant species in central California: Pugettia producta, Pugettia richii, and Mimulus foliatus (hereafter P. producta, P. richii, and Mimulus). All three are phylogenetically closely related (H ...
... worldwide, and typically feed on and inhabit algae (Rathbun 1925; Hines 1982). We studied the three most abundant species in central California: Pugettia producta, Pugettia richii, and Mimulus foliatus (hereafter P. producta, P. richii, and Mimulus). All three are phylogenetically closely related (H ...
Select your Weed Species
... pasture species and grazing throughout the year OR by adding a volunteer pasture year which calculates the seed reduction for each weed species over a given year (see 5) Adding a Volunteer Pasture Year). The first option is done like this: Sow a pasture species such as clover or cadiz as described i ...
... pasture species and grazing throughout the year OR by adding a volunteer pasture year which calculates the seed reduction for each weed species over a given year (see 5) Adding a Volunteer Pasture Year). The first option is done like this: Sow a pasture species such as clover or cadiz as described i ...
Low biodiversity state persists two decades after cessation of
... observed lack of recovery depended on neighbour plot richness (Hawthorne 2012), which was quantified as the mean number of species in all adjacent plots (including up to eight plots along the four edges and at the four corners of a plot completely surrounded by other plots). Movement of plants betwe ...
... observed lack of recovery depended on neighbour plot richness (Hawthorne 2012), which was quantified as the mean number of species in all adjacent plots (including up to eight plots along the four edges and at the four corners of a plot completely surrounded by other plots). Movement of plants betwe ...
Functional agrobiodiversity: Nature serving Europe`s - ELN-FAB
... biodiversity elements generate ecosystem services, tools can be generated for farmers to make their production systems more robust to disturbances and less dependent on external inputs. This will be essential to ensure the delivery of safe and sufficient food, fibre and fuel, as well as public envir ...
... biodiversity elements generate ecosystem services, tools can be generated for farmers to make their production systems more robust to disturbances and less dependent on external inputs. This will be essential to ensure the delivery of safe and sufficient food, fibre and fuel, as well as public envir ...
Action Plan for the conservation of Wolverines (Gulo gulo) in Europe
... All five Action Plans have clearly identified a number of important common themes, which include the following fundamental guiding principles: • there is a need to concentrate conservation efforts at the population level, which often requires cross-border co-operation; • the principle of management ...
... All five Action Plans have clearly identified a number of important common themes, which include the following fundamental guiding principles: • there is a need to concentrate conservation efforts at the population level, which often requires cross-border co-operation; • the principle of management ...
Status of Whooping Crane in Alberta 2001
... and up-to-date information which will be useful to resource professionals for managing populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species t ...
... and up-to-date information which will be useful to resource professionals for managing populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species t ...
Status of the Whooping Crane in Alberta
... and up-to-date information which will be useful to resource professionals for managing populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species t ...
... and up-to-date information which will be useful to resource professionals for managing populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species t ...
The niche, biogeography and species interactions
... with little or no consideration of the idea that distributions of organisms are influenced by factors such as habitat tolerances or species interactions. This is wellillustrated in the excellent and integrative textbook by Lomolino et al. [2], in which ecology goes largely unmentioned in the chapter ...
... with little or no consideration of the idea that distributions of organisms are influenced by factors such as habitat tolerances or species interactions. This is wellillustrated in the excellent and integrative textbook by Lomolino et al. [2], in which ecology goes largely unmentioned in the chapter ...
Distribution and Reproductive Characteristics of Nonindigenous and
... 1961). However, the origin and source of many other apparently introduced algae remain unknown (Doty 1961, Brostoff 1989). The most likely vector of transport is through ship fouling and/or ballast water because many of these nonindigenous algae were first collected in or around harbors and graduall ...
... 1961). However, the origin and source of many other apparently introduced algae remain unknown (Doty 1961, Brostoff 1989). The most likely vector of transport is through ship fouling and/or ballast water because many of these nonindigenous algae were first collected in or around harbors and graduall ...
The Ecological Significance of the Herbaceous Layer in
... layer, part of the Hubbard Brook Ecosystem Study. Other studies have placed the cutoff as high as 2 m, and still others fail to state a specific height to delimit the herb layer. Figure 1 depicts herbaceous-layer communities for contrasting forest types. The field of vegetation science, which seeks ...
... layer, part of the Hubbard Brook Ecosystem Study. Other studies have placed the cutoff as high as 2 m, and still others fail to state a specific height to delimit the herb layer. Figure 1 depicts herbaceous-layer communities for contrasting forest types. The field of vegetation science, which seeks ...
View plan for Kaluaa and Waieli
... were monitored. Though only 81 plots were needed to detect a change in alien percent cover, more plots were monitored to ensure that there was a large enough sample size to detect change in the frequency of occurrence goal (discussed in section 2). Section 2: Frequency of Occurrence Analysis Frequen ...
... were monitored. Though only 81 plots were needed to detect a change in alien percent cover, more plots were monitored to ensure that there was a large enough sample size to detect change in the frequency of occurrence goal (discussed in section 2). Section 2: Frequency of Occurrence Analysis Frequen ...
Microbial interactions: from networks to models
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
Biodiversity and Climate Change: Integrating
... Ecology and evolution have developed as separate fields based on the distinction between “ecological time” and “evolutionary time” made by Slobodkin (1961). Hairston et al. (2005) have proposed that rapid evolution should be defined as genetic changes occurring fast enough to have a measurable impac ...
... Ecology and evolution have developed as separate fields based on the distinction between “ecological time” and “evolutionary time” made by Slobodkin (1961). Hairston et al. (2005) have proposed that rapid evolution should be defined as genetic changes occurring fast enough to have a measurable impac ...
Relationship of calling intensity to - Research Online
... Humphries, 1979; Okuno, 1985; Radwan and Schneider, 1988) have most consistently been found to correlate with the number of males calling at a given time and/or the intensity of their calling activity, usually showing a positive relationship. Humidity also often correlates with calling activity (Alm ...
... Humphries, 1979; Okuno, 1985; Radwan and Schneider, 1988) have most consistently been found to correlate with the number of males calling at a given time and/or the intensity of their calling activity, usually showing a positive relationship. Humidity also often correlates with calling activity (Alm ...
Salt marsh harvest mouse abundance and site use in a managed
... synergistic impacts on SMHM populations by increasing competition and predation. For instance, the house mouse (Mus musculus), an invasive species, uses habitat that is more patchily distributed than SMHM, which may result in the displacement of the SMHM from available habitat (Bias & Morrison, 2006 ...
... synergistic impacts on SMHM populations by increasing competition and predation. For instance, the house mouse (Mus musculus), an invasive species, uses habitat that is more patchily distributed than SMHM, which may result in the displacement of the SMHM from available habitat (Bias & Morrison, 2006 ...
Factors Influencing Macroinvertebrate Diversity and Community
... on rock pool hydroperiod (Wellborn et al. 1996, Kiflawi et al. 2003). Rock pools that have relatively long hydroperiods tend to have higher species diversity, due to reduced local extinction, increased effects of predation, and longer time for colonists to accrue (Kiflawi et al. 2003, Joqueʹ′ et al. ...
... on rock pool hydroperiod (Wellborn et al. 1996, Kiflawi et al. 2003). Rock pools that have relatively long hydroperiods tend to have higher species diversity, due to reduced local extinction, increased effects of predation, and longer time for colonists to accrue (Kiflawi et al. 2003, Joqueʹ′ et al. ...
TEAM 2 QUEST 06 PAPER
... abundances were fairly even at 25ft. Upon analysis of the overall data collected, we concluded that future studies collecting a larger number of samples at more depths is needed to statistically support the Intermediate Disturbance Hypothesis with regard to benthic cover in Ke’ei. ...
... abundances were fairly even at 25ft. Upon analysis of the overall data collected, we concluded that future studies collecting a larger number of samples at more depths is needed to statistically support the Intermediate Disturbance Hypothesis with regard to benthic cover in Ke’ei. ...
midwest furbearer group
... understanding of how human activity is influencing marten dispersal. We focus on dispersal because it is a fundamental ecological process that influences important phenomena including, habitat use, mate finding, genetic structure of populations and ultimately viability of populations. Furthermore, t ...
... understanding of how human activity is influencing marten dispersal. We focus on dispersal because it is a fundamental ecological process that influences important phenomena including, habitat use, mate finding, genetic structure of populations and ultimately viability of populations. Furthermore, t ...
1 - Biology Department | UNC Chapel Hill
... and high in phenolics, on soils that are low in all nutrients, particularly phosphate. Northup et al. (1998) ...
... and high in phenolics, on soils that are low in all nutrients, particularly phosphate. Northup et al. (1998) ...
PDF of Text - Klamath Center for Conservation Research
... The BRWRA encompasses around 18,000 km2 of the Gila National Forest in New Mexico and the Apache National Forest in Arizona and New Mexico. The final rule (Parsons 1998) authorizes the Service to initially release wolves only in the “primary recovery zone” of the BRWRA, an area that encompasses abou ...
... The BRWRA encompasses around 18,000 km2 of the Gila National Forest in New Mexico and the Apache National Forest in Arizona and New Mexico. The final rule (Parsons 1998) authorizes the Service to initially release wolves only in the “primary recovery zone” of the BRWRA, an area that encompasses abou ...
comparative evaluation of experimental
... process linkages from the complex network that forms the whole fragmentation process, and ask relatively simple questions. For example, what are the relationships among patch area, patch shape, patch isolation, edge, the interaction of these factors, and various population (e.g., predation, reproduc ...
... process linkages from the complex network that forms the whole fragmentation process, and ask relatively simple questions. For example, what are the relationships among patch area, patch shape, patch isolation, edge, the interaction of these factors, and various population (e.g., predation, reproduc ...
Breeding Birds 2014 - Tommy Thompson Park
... The census for Common Tern and Ring-billed Gull is conducted at the peak nesting period, typically the last week of May or the first week of June to determine their breeding population. The Common Tern colonies nest on four floating reef-rafts and one artificial island. The colonies can be subject t ...
... The census for Common Tern and Ring-billed Gull is conducted at the peak nesting period, typically the last week of May or the first week of June to determine their breeding population. The Common Tern colonies nest on four floating reef-rafts and one artificial island. The colonies can be subject t ...
Guide to Native Grassland Management in
... but also wildlife. There are two critical components for management plans that enhance native grasslands for livestock and achieve wildlife benefits. The first component is that plant diversity is a positive aspect of any grassland or rangeland. A grassland of one type of grass (i.e., smooth brome o ...
... but also wildlife. There are two critical components for management plans that enhance native grasslands for livestock and achieve wildlife benefits. The first component is that plant diversity is a positive aspect of any grassland or rangeland. A grassland of one type of grass (i.e., smooth brome o ...
Species loss and the structure and functioning of multitrophic
... functioning differently? Our analyses show that: 1) Relatively few high-quality data are available concerning the distribution of species richness among trophic levels. A new data-set provides evidence of a decrease in species richness as trophic height increases. 2) Multiple lines of evidence indic ...
... functioning differently? Our analyses show that: 1) Relatively few high-quality data are available concerning the distribution of species richness among trophic levels. A new data-set provides evidence of a decrease in species richness as trophic height increases. 2) Multiple lines of evidence indic ...
Tadpoles, Predation and Pond Habitats in the Tropics METHODS
... of aquatic habitats by frogs with larval stages. Predation by permanent aquatic predators (primarily fish) is considered to be the most important biotic factor influencing the temporal and spatial composition of tadpole communities. The development and maintenance of predatory feeding modes, includi ...
... of aquatic habitats by frogs with larval stages. Predation by permanent aquatic predators (primarily fish) is considered to be the most important biotic factor influencing the temporal and spatial composition of tadpole communities. The development and maintenance of predatory feeding modes, includi ...
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.