Results and recommendations from the Ecosystem Research
... development of ecosystem approaches to fisheries in the NL region. This work evolved into the regional component of the DFO Ecosystem Research Initiative (ERI), the “Newfoundland and Labrador’s Expanded Research on Ecosystem-relevant but Under-surveyed Splicers” (NEREUS). The ERI-NEREUS program had ...
... development of ecosystem approaches to fisheries in the NL region. This work evolved into the regional component of the DFO Ecosystem Research Initiative (ERI), the “Newfoundland and Labrador’s Expanded Research on Ecosystem-relevant but Under-surveyed Splicers” (NEREUS). The ERI-NEREUS program had ...
Slide 1
... Simulations generally examine the influence of small changes in predator & prey populations away from equilibria Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e. ...
... Simulations generally examine the influence of small changes in predator & prey populations away from equilibria Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e. ...
A0831_R0743_CER_Fauna Survey
... often lays eggs in shallow seep water or even roadside, gutters. The species is found between Gingin in the nOrth,', inland to Dumblevung and east to Cape Le Grand (Tyler et al, 1984). These were the most commonly captured frogs at Egerton. They were found in Perical,wnma ellipticum Heath, Juncus pa ...
... often lays eggs in shallow seep water or even roadside, gutters. The species is found between Gingin in the nOrth,', inland to Dumblevung and east to Cape Le Grand (Tyler et al, 1984). These were the most commonly captured frogs at Egerton. They were found in Perical,wnma ellipticum Heath, Juncus pa ...
Beaver reintroduction in Hungary
... silky and waterproof. The eyes and ears are small and the animal can close its ears and nose under the water. In the hind legs, the feet are webbed. This species can be easily identified by the large, orange-coloured incisors and the large, flat scaly tail which is used for steering in the water and ...
... silky and waterproof. The eyes and ears are small and the animal can close its ears and nose under the water. In the hind legs, the feet are webbed. This species can be easily identified by the large, orange-coloured incisors and the large, flat scaly tail which is used for steering in the water and ...
Characterization of Biodiversity
... - Taxonomists have the task of enumerating which species exist and placing them in a taxonomic hierarchy. This taxonomic hierarchy serves both as a classification used for reference purposes and as a summary of the evolutionary tree. It can also be used to predict properties of certain organisms. Th ...
... - Taxonomists have the task of enumerating which species exist and placing them in a taxonomic hierarchy. This taxonomic hierarchy serves both as a classification used for reference purposes and as a summary of the evolutionary tree. It can also be used to predict properties of certain organisms. Th ...
McPeek, M. A. 2008. Ecological factors limiting the
... 2002). Also, because of the differences in breeding tactics of males and females, females sometimes have higher mortality rates than males (Bennett and Mill 1995b; Anholt 1997; Marden and Rowan 2000; Beukema 2002; Kery and Juillerat 2004; CórdobaAguilar et al. 2006). Females of most species spend co ...
... 2002). Also, because of the differences in breeding tactics of males and females, females sometimes have higher mortality rates than males (Bennett and Mill 1995b; Anholt 1997; Marden and Rowan 2000; Beukema 2002; Kery and Juillerat 2004; CórdobaAguilar et al. 2006). Females of most species spend co ...
ppt
... Simulations generally examine the influence of small changes in predator & prey populations away from equilibria Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e. ...
... Simulations generally examine the influence of small changes in predator & prey populations away from equilibria Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e. ...
Biological and ecological traits of marine species
... Particular groups of users have begun to develop thematic databases within WoRMS. For example, species involved in Harmful micro-Algal Blooms (HAB) (Moestrup et al., 2013), occurring in the deep sea (WoRDSS, Glover, Higgs & Horton, 2013), and that have been introduced by human activities (Pagad et a ...
... Particular groups of users have begun to develop thematic databases within WoRMS. For example, species involved in Harmful micro-Algal Blooms (HAB) (Moestrup et al., 2013), occurring in the deep sea (WoRDSS, Glover, Higgs & Horton, 2013), and that have been introduced by human activities (Pagad et a ...
life histories of stoneflies (plecoptera) in the rio conejos of
... R. Edward DeWalt 1,2 and Kenneth W Stewart 1 ABSTRACT,-Thirty-one stonefly species representing eight families were collected during the March 1987 to May 1990 study period. Genera represented by more than one species included Capnia, Utacapnia, Taenionema, Suwallia, Triznaka, Isogenoides, and [sope ...
... R. Edward DeWalt 1,2 and Kenneth W Stewart 1 ABSTRACT,-Thirty-one stonefly species representing eight families were collected during the March 1987 to May 1990 study period. Genera represented by more than one species included Capnia, Utacapnia, Taenionema, Suwallia, Triznaka, Isogenoides, and [sope ...
Competition hierarchy, transitivity and additivity: investigating the
... monocultures, all three pairwise mixtures and the three-species mixture). In a pilot study, all species were subjected to four different levels of nitrogen fertilisation (0, 1.5, 5 and 15 g m–2 a–1). Fertilisation affected growth of C. cuspidata and P. undulatum positively except for the highest lev ...
... monocultures, all three pairwise mixtures and the three-species mixture). In a pilot study, all species were subjected to four different levels of nitrogen fertilisation (0, 1.5, 5 and 15 g m–2 a–1). Fertilisation affected growth of C. cuspidata and P. undulatum positively except for the highest lev ...
Deer herbivory affects the functional diversity of forest floor plants via
... species with similar traits. Under intense abiotic interactions, traits related to ecological tolerances are important (Cornwell et al. 2006; Grime 2006), but under resource-rich conditions, species with high competitive ability are superior to less competitive ones (Kunstler et al. 2012; Kraft et a ...
... species with similar traits. Under intense abiotic interactions, traits related to ecological tolerances are important (Cornwell et al. 2006; Grime 2006), but under resource-rich conditions, species with high competitive ability are superior to less competitive ones (Kunstler et al. 2012; Kraft et a ...
Review Functional morphology as an aid in determining trophic
... the water-collecting depressions on trees (treeholes) (Fish, 1983). In recent years phytotelmata have been lauded as excellent subjects for testing community theory since they are natural microcosms that can be easily manipulated, provide for replication and contain relatively few species (Kitching, ...
... the water-collecting depressions on trees (treeholes) (Fish, 1983). In recent years phytotelmata have been lauded as excellent subjects for testing community theory since they are natural microcosms that can be easily manipulated, provide for replication and contain relatively few species (Kitching, ...
Chapter 6
... heard a robin. Although these organisms shed leaves or feathers, their characteristics remain the same from day to day. It might seem as if they have been on Earth forever. However, if you were to travel a few million years back in time, you would not see oak trees or robins. You would see different ...
... heard a robin. Although these organisms shed leaves or feathers, their characteristics remain the same from day to day. It might seem as if they have been on Earth forever. However, if you were to travel a few million years back in time, you would not see oak trees or robins. You would see different ...
Ecology
... • In random dispersion, the position of each individual is independent of the others. • Overall, dispersion depends on resource ...
... • In random dispersion, the position of each individual is independent of the others. • Overall, dispersion depends on resource ...
two ecosystem engineers interact to degrade deciduous forests of
... nearly all of New Jersey’s forests are in an overbrowsed state and for many areas the degree of overbrowsing is severe. If there was a perfect engineering plant invader to take advantage of the overbrowsed status of New Jersey’s deciduous forests it is Japanese stilt grass (Microstegium vimineum), a ...
... nearly all of New Jersey’s forests are in an overbrowsed state and for many areas the degree of overbrowsing is severe. If there was a perfect engineering plant invader to take advantage of the overbrowsed status of New Jersey’s deciduous forests it is Japanese stilt grass (Microstegium vimineum), a ...
Species and Habitats Most at Risk in Greater Yellowstone
... Greater Yellowstone Ecosystem (GYE) (Fig. 1) are relatively well understood. Keiter and Boyce (1991) placed ecological processes and organisms in Yellowstone National Park in the context of the broader GYE. Glick et al. (1991) focused on the interplay between natural resources and local economics. C ...
... Greater Yellowstone Ecosystem (GYE) (Fig. 1) are relatively well understood. Keiter and Boyce (1991) placed ecological processes and organisms in Yellowstone National Park in the context of the broader GYE. Glick et al. (1991) focused on the interplay between natural resources and local economics. C ...
Biogeography and the structure of coral reef fish communities on
... compared the shallow (0–60 m) reef fish communities (Allen & Smith-Vaniz, 1994; Allen et al., 2007; Hobbs et al., 2007, 2010) with the overall community composition of Indonesia (Allen & Adrim, 2003; G. Allen, unpublished data). The Indonesian region represents the global centre of reef fish diversi ...
... compared the shallow (0–60 m) reef fish communities (Allen & Smith-Vaniz, 1994; Allen et al., 2007; Hobbs et al., 2007, 2010) with the overall community composition of Indonesia (Allen & Adrim, 2003; G. Allen, unpublished data). The Indonesian region represents the global centre of reef fish diversi ...
The inability of northern whelks to drill the range extending barnacle
... In both lab and field studies, N. ostrina and N. canaliculata demonstrated a clear preference for barnacle species other than Tetraclita (Figures 15). N. ostrina from Kibesillah Hill and Soberanes Point were unable or unwilling to drill any Tetraclita during initial observations of the lab and field ...
... In both lab and field studies, N. ostrina and N. canaliculata demonstrated a clear preference for barnacle species other than Tetraclita (Figures 15). N. ostrina from Kibesillah Hill and Soberanes Point were unable or unwilling to drill any Tetraclita during initial observations of the lab and field ...
University of Groningen Holism and reductionism in biology
... allow the population to grow. However, there will come a time when cN becomes equal to or exceeds y. Intraspecific competition will then become ever more intense as an increasing number of individuals make demands on a decreasing supply of resources. The per caput death rate (m) will increase with e ...
... allow the population to grow. However, there will come a time when cN becomes equal to or exceeds y. Intraspecific competition will then become ever more intense as an increasing number of individuals make demands on a decreasing supply of resources. The per caput death rate (m) will increase with e ...
a haunting legacy from isoclines: mammal
... competition will vary among habitats, and habitat selection will be a major contributor to coexistence. Competition will vanish to zero (the ghost of competition) when species occupy completely separate habitats. even though the potential for competition remains high. Competitive potential can be es ...
... competition will vary among habitats, and habitat selection will be a major contributor to coexistence. Competition will vanish to zero (the ghost of competition) when species occupy completely separate habitats. even though the potential for competition remains high. Competitive potential can be es ...
FA Schott - Biodiversity New Zealand
... students from all over the world dream of spending some time in Aotearoa, the land of the long white cloud, as it is called in Te Reo Maori. So I felt very lucky when I got the chance to spend five months in Auckland on the North Island from January to July 2007, not only because I could experience ...
... students from all over the world dream of spending some time in Aotearoa, the land of the long white cloud, as it is called in Te Reo Maori. So I felt very lucky when I got the chance to spend five months in Auckland on the North Island from January to July 2007, not only because I could experience ...
Ch 56 Notes - Dublin City Schools
... • Most species loss can be traced to three major threats: – Habitat destruction – Introduced species – Overexploitation ...
... • Most species loss can be traced to three major threats: – Habitat destruction – Introduced species – Overexploitation ...
Potential for omnivory and apparent intraguild predation in rocky
... ABSTRACT: We assessed the ingestion of animal items by 29 herbivore species of the most common invertebrates on rocky intertidal shores of northern Chile (21 to 30° S). Data were obtained from 4 communities sampled seasonally from winter 2004 to spring 2005. Gastric contents of 2671 individuals were ...
... ABSTRACT: We assessed the ingestion of animal items by 29 herbivore species of the most common invertebrates on rocky intertidal shores of northern Chile (21 to 30° S). Data were obtained from 4 communities sampled seasonally from winter 2004 to spring 2005. Gastric contents of 2671 individuals were ...
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.