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... null hypotheses of no differences among sites in the proportions of species in the different orders and trophic groups. Because of the possibility that proportions might differ less among sites than expected under the null hypothesis (Fisher, 1936; Edwards, 1986), two-sided alternative hypotheses we ...
... null hypotheses of no differences among sites in the proportions of species in the different orders and trophic groups. Because of the possibility that proportions might differ less among sites than expected under the null hypothesis (Fisher, 1936; Edwards, 1986), two-sided alternative hypotheses we ...
Mammalian Biology 88th Annual Meeting of the - JKI
... (Rhinopomatidae) and is known as an extremely frequent bat in the southern part of Iran with over 52 reported localities. The taxonomic status of R. muscatellum in Iran is not so clear, as different research groups have reported one or two subspecies. In the present study, using morphologic, morphom ...
... (Rhinopomatidae) and is known as an extremely frequent bat in the southern part of Iran with over 52 reported localities. The taxonomic status of R. muscatellum in Iran is not so clear, as different research groups have reported one or two subspecies. In the present study, using morphologic, morphom ...
Detail programme_Abstractsocx - 144.6 kB
... Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne Franche-Comté, FR-21000 Dijon ; CEBC – CNRS, Chizé Pollination is an ecosystem service on which humans depends through its link to food production. Some crops, e.g. oilseed rape (Brassica napus L.), are pollinated by a broad range of insects such as ...
... Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne Franche-Comté, FR-21000 Dijon ; CEBC – CNRS, Chizé Pollination is an ecosystem service on which humans depends through its link to food production. Some crops, e.g. oilseed rape (Brassica napus L.), are pollinated by a broad range of insects such as ...
Kildare`s Hedgerows
... better for wildlife than short, narrow ones, especially if there are hedgerow trees. Kildare’s hedgerows were found to contain a high proportion of trees and lots of young trees which is good news for the sustainability of the resource. Occasional saplings of all species, should be selected and allo ...
... better for wildlife than short, narrow ones, especially if there are hedgerow trees. Kildare’s hedgerows were found to contain a high proportion of trees and lots of young trees which is good news for the sustainability of the resource. Occasional saplings of all species, should be selected and allo ...
Tropical Lakes Biodiversity Crisis
... Zooplanktivores: H. pyrrhocephalus better adapted to lowlight than H. heusinkveldi Spawning and diet effected ...
... Zooplanktivores: H. pyrrhocephalus better adapted to lowlight than H. heusinkveldi Spawning and diet effected ...
Appendices - NatureServe
... Shrub - A woody plant that generally has several erect, spreading, or prostrate stems which give it a bushy appearance. In instances where growth form cannot be readily determined, woody plants less than 5 m in height at maturity are to be considered shrubs [even if monopodial?] (adapted from FGDC 1 ...
... Shrub - A woody plant that generally has several erect, spreading, or prostrate stems which give it a bushy appearance. In instances where growth form cannot be readily determined, woody plants less than 5 m in height at maturity are to be considered shrubs [even if monopodial?] (adapted from FGDC 1 ...
diel and seasonal variation in species composition and abundance
... (Site 1 night:day abundance = 3.15; Site 2 night:day = 2.83). In terms of species composition, the two Processa species were noticeably absent from day samples. The hippolytid Lysmata moorei and the palaemonid Brachycarpus biunguiculatus were seldom found (Table 1) but, when collected, occurred only ...
... (Site 1 night:day abundance = 3.15; Site 2 night:day = 2.83). In terms of species composition, the two Processa species were noticeably absent from day samples. The hippolytid Lysmata moorei and the palaemonid Brachycarpus biunguiculatus were seldom found (Table 1) but, when collected, occurred only ...
A Comparison of Pollinator Landings on Lantana camara with Three
... study the quantification of landing sites was problematic. A “landing site” was defined as an inflorescence in view of the observer. Lantana camara, Calitropis giganteum, and Mimosa pudica each have inflorescence of multiple flowers while the inflorescence of Catharanthus roseus consists of a single ...
... study the quantification of landing sites was problematic. A “landing site” was defined as an inflorescence in view of the observer. Lantana camara, Calitropis giganteum, and Mimosa pudica each have inflorescence of multiple flowers while the inflorescence of Catharanthus roseus consists of a single ...
The world's richest tadpole communities show functional redundancy and low functional
... appearance of functional redundancy in communities and processes of community assembly. Functional redundancy illustrates the overlap in ecological functions of community members which may be an indicator of community resilience. We evaluated patterns of species richness, functional diversity and fu ...
... appearance of functional redundancy in communities and processes of community assembly. Functional redundancy illustrates the overlap in ecological functions of community members which may be an indicator of community resilience. We evaluated patterns of species richness, functional diversity and fu ...
Overview of the Spanish fisheries in the Patagonian Shelf. ICES CM
... understand possible changes in fishing patterns as well as to evaluate possible emerging target species and their fishery potential. Catch and effort The fishing grounds in the SW Atlantic support some of the most important fisheries worldwide, with hakes and cephalopods being the main commercial sp ...
... understand possible changes in fishing patterns as well as to evaluate possible emerging target species and their fishery potential. Catch and effort The fishing grounds in the SW Atlantic support some of the most important fisheries worldwide, with hakes and cephalopods being the main commercial sp ...
oceanic islands: models of diversity
... On oceanic islands, the biota is often considered to be ‘‘disharmonic.’’ This phenomenon arises partly because taxa differ considerably in their ability to colonize remote islands, leading to attenuation in the number of groups represented on more isolated islands. Moreover, as a consequence of the ...
... On oceanic islands, the biota is often considered to be ‘‘disharmonic.’’ This phenomenon arises partly because taxa differ considerably in their ability to colonize remote islands, leading to attenuation in the number of groups represented on more isolated islands. Moreover, as a consequence of the ...
Sexual Dimorphism, Diet, and Reproduction in the Swamp
... important in male-male competition and could be subject to sexual selection. Interestingly, similar levels of aggression have been reported in other species of Egernia that exhibit stable social aggregations (Chapple, 2003), and therefore additional explanations may be required to account for the ap ...
... important in male-male competition and could be subject to sexual selection. Interestingly, similar levels of aggression have been reported in other species of Egernia that exhibit stable social aggregations (Chapple, 2003), and therefore additional explanations may be required to account for the ap ...
Plant Attribute Diversity, Resilience, and Ecosystem Function: The
... biomass or production. Some [for example, McNaughton (1985) and Tilman (1996)] have shown that year-to-year variation in species abundance tends to stabilize community biomass, and a few [Vitousek and Hooper (1993) and Hooper and Vitousek (1997), for example] have considered aspects of ecosystem fun ...
... biomass or production. Some [for example, McNaughton (1985) and Tilman (1996)] have shown that year-to-year variation in species abundance tends to stabilize community biomass, and a few [Vitousek and Hooper (1993) and Hooper and Vitousek (1997), for example] have considered aspects of ecosystem fun ...
University of Groningen The Serengeti food web de Visser
... grouped nodes and includes both invertebrates and vertebrates ranging from body masses between 10)7 and 104 kg. 3. We study the topological changes in this food web that result from the simulated IUCN-based species-loss sequence representing current species vulnerability to human disturbances in and ...
... grouped nodes and includes both invertebrates and vertebrates ranging from body masses between 10)7 and 104 kg. 3. We study the topological changes in this food web that result from the simulated IUCN-based species-loss sequence representing current species vulnerability to human disturbances in and ...
Species-specific positive effects in an annual plant
... et al. 1999), and this is more tractable in certain life-forms. Furthermore, it has been argued that removal experiments are superior to additions since communities are formed by many processes, not just simple addition, removals inform on the importance of non-random species loss within systems, an ...
... et al. 1999), and this is more tractable in certain life-forms. Furthermore, it has been argued that removal experiments are superior to additions since communities are formed by many processes, not just simple addition, removals inform on the importance of non-random species loss within systems, an ...
IMPACTS OF BIOLOGICAL INVASIONS ON FRESHWATER
... enemies that are adapted to them. Given that phylogenetically distant species tend to be ecologically distinct from each other, we expect that invaders that cause substantial declines in native populations will belong to novel taxa more often than low-impact invaders (Ricciardi & Atkinson 2004). Ind ...
... enemies that are adapted to them. Given that phylogenetically distant species tend to be ecologically distinct from each other, we expect that invaders that cause substantial declines in native populations will belong to novel taxa more often than low-impact invaders (Ricciardi & Atkinson 2004). Ind ...
AP® Environmental Science - AP Central
... courses prior to enrollment. Ecology is the relationship between organisms—at the individual, species, population, community, and ecosystem level—and their environment. In order to understand environmental science, which is basically the human impact on these organisms and their interactions, one mu ...
... courses prior to enrollment. Ecology is the relationship between organisms—at the individual, species, population, community, and ecosystem level—and their environment. In order to understand environmental science, which is basically the human impact on these organisms and their interactions, one mu ...
full text - Library
... Methods: We examined seedling abundance and species richness of perennial plants in the open and under different types of patches that may facilitate species recruitment (living shrubs, dead shrubs, perennial grasses and trees) along an arid scrubland–temperate rain forest boundary. To assess whethe ...
... Methods: We examined seedling abundance and species richness of perennial plants in the open and under different types of patches that may facilitate species recruitment (living shrubs, dead shrubs, perennial grasses and trees) along an arid scrubland–temperate rain forest boundary. To assess whethe ...
HABIT-CHANGE Priority matrix impacts per region and habitat
... based on a literature review (see Output 3.1.1). They will give a broader overview on the topic and allow for a comparison of the data from investigation areas with information provided on a more general scale. The information on impacts per investigation area in chapter 4 is based on expert knowled ...
... based on a literature review (see Output 3.1.1). They will give a broader overview on the topic and allow for a comparison of the data from investigation areas with information provided on a more general scale. The information on impacts per investigation area in chapter 4 is based on expert knowled ...
Novel weapons: invasive success and the evolution of increased
... Mitchell and Power 2003; Reinhart et al. 2003; cation of resources or energy from defense against speSiemann and Rogers 2003; Callaway et al. 2004; cialist herbivores to competitive ability. DeWalt et al. 2004; Jakobs et al. 2004), but there are reasons to be hesitant about accepting enemy release a ...
... Mitchell and Power 2003; Reinhart et al. 2003; cation of resources or energy from defense against speSiemann and Rogers 2003; Callaway et al. 2004; cialist herbivores to competitive ability. DeWalt et al. 2004; Jakobs et al. 2004), but there are reasons to be hesitant about accepting enemy release a ...
Climate modifies response of non
... changes in community composition [29,31]. Similarly, experimental water and nutrient availability manipulations lead to changes in species richness or cover, suggesting that response to nutrient treatments is influenced by water availability and differs among species [30,32,33]. In addition, trade-o ...
... changes in community composition [29,31]. Similarly, experimental water and nutrient availability manipulations lead to changes in species richness or cover, suggesting that response to nutrient treatments is influenced by water availability and differs among species [30,32,33]. In addition, trade-o ...
Cadotte2007 Ecology
... relationship was done with the MOS test, which determines whether maximal richness was at intermediate disturbance frequencies by creating constrained regression models in which the null hypothesis is that the maximal dependent values are found at either the minimum or maximum values in the independ ...
... relationship was done with the MOS test, which determines whether maximal richness was at intermediate disturbance frequencies by creating constrained regression models in which the null hypothesis is that the maximal dependent values are found at either the minimum or maximum values in the independ ...
IMPACT: Toward a framework for understanding the
... Although ecologists commonly talk about the impacts of nonindigenous species, little formal attention has been given to defining what we mean by impact, or connecting ecological theory with particular measures of impact. The resulting lack of generalizations regarding invasion impacts is more than a ...
... Although ecologists commonly talk about the impacts of nonindigenous species, little formal attention has been given to defining what we mean by impact, or connecting ecological theory with particular measures of impact. The resulting lack of generalizations regarding invasion impacts is more than a ...
Flanagan Contextual Teaching Assignment
... The students will be given a worksheet (attached below) that will guide them through research on different mimic species. The worksheet will provide the mimic species and the students will have to identify what the species is mimicking and why. This worksheet is intended to be more of a “scavenger” ...
... The students will be given a worksheet (attached below) that will guide them through research on different mimic species. The worksheet will provide the mimic species and the students will have to identify what the species is mimicking and why. This worksheet is intended to be more of a “scavenger” ...
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.