Seed Dynamics and Seedling Establishment of Woody Species in
... effect of litter cover and light level on seedling emergence of 9 common cerrado woody species. Finally, I evaluated the effect of pulses of heat on seed germination of 5 common cerrado woody species under controlled conditions. The overall results of this study show that regardless of tree canopy c ...
... effect of litter cover and light level on seedling emergence of 9 common cerrado woody species. Finally, I evaluated the effect of pulses of heat on seed germination of 5 common cerrado woody species under controlled conditions. The overall results of this study show that regardless of tree canopy c ...
Predation intensifies parasite exposure in a salmonid food chain
... nature. This highlights that predation may intensify parasite exposure and undermine the protection to ectoparasites conferred by the larger body size of predators. Three lines of evidence support this conclusion. (i) Motile abundance, but not copepodid or chalimus abundance, was significantly higher ...
... nature. This highlights that predation may intensify parasite exposure and undermine the protection to ectoparasites conferred by the larger body size of predators. Three lines of evidence support this conclusion. (i) Motile abundance, but not copepodid or chalimus abundance, was significantly higher ...
Abstracts for the AOU/COS/SCO Meeting, 2014
... natal dispersal. Sons born on territories with few cavity resources and those with kin present in their first year of breeding dispersed longer distances. Resource acquisition and personality type are interdependent in this species, so these proximate influences on dispersal likely mediate changes i ...
... natal dispersal. Sons born on territories with few cavity resources and those with kin present in their first year of breeding dispersed longer distances. Resource acquisition and personality type are interdependent in this species, so these proximate influences on dispersal likely mediate changes i ...
effects of the rothschild giraffe on the biophysical
... diversity of grass. Giraffe presence is able to cause soil erosion to a small extent (9%) The analysis of the socio- economic variables displayed that the sanctuary generated significant revenue from the Rothschild giraffe through tourism. This income was used to fund community and school conservati ...
... diversity of grass. Giraffe presence is able to cause soil erosion to a small extent (9%) The analysis of the socio- economic variables displayed that the sanctuary generated significant revenue from the Rothschild giraffe through tourism. This income was used to fund community and school conservati ...
Rolling Plains Quail Research Ranch Field Day Report
... see you here. After two years of below average rainfall, things look rather gloomy for quail fans. However, looking on the bright side, conditions have improved some since last year. Many people are reporting seeing more quail than they did last year, but that is not really saying much given the poo ...
... see you here. After two years of below average rainfall, things look rather gloomy for quail fans. However, looking on the bright side, conditions have improved some since last year. Many people are reporting seeing more quail than they did last year, but that is not really saying much given the poo ...
Distribution and Habitat Associations of Spotted Ratfish (Hydrolagus
... for understanding how species are distributed and for the proper implementation of successful management strategies. The spotted ratfish (Hydrolagus colliei), is a deep water species of the Chimaeridae family occurring along the west coast of the United States. The abundance of spotted ratfish and t ...
... for understanding how species are distributed and for the proper implementation of successful management strategies. The spotted ratfish (Hydrolagus colliei), is a deep water species of the Chimaeridae family occurring along the west coast of the United States. The abundance of spotted ratfish and t ...
Functional niche partitioning in herbivorous coral reef fishes
... Ecological niche theory predicts that the diversity of life hinges on differences in the ways in which species exploit available resources, i.e. their ecological niche. An organism’s niche can be divided into the fundamental and the realized niche. The fundamental niche refers to a species’ inherent ...
... Ecological niche theory predicts that the diversity of life hinges on differences in the ways in which species exploit available resources, i.e. their ecological niche. An organism’s niche can be divided into the fundamental and the realized niche. The fundamental niche refers to a species’ inherent ...
introduction - RUJA - Universidad de Jaén
... toxic effect (due to the insecticide) hiding potential interaction at lower mixtures concentrations. In addition to mixture, treatment frequency was not relevant because has been also hidden for the drastic effect of the insecticide since the first application. The ecological interactions play a rol ...
... toxic effect (due to the insecticide) hiding potential interaction at lower mixtures concentrations. In addition to mixture, treatment frequency was not relevant because has been also hidden for the drastic effect of the insecticide since the first application. The ecological interactions play a rol ...
Ocelot CH Petition - WildEarth Guardians
... methods and procedures include, but are not limited to, all activities associated with scientific resources management such as research, census, law enforcement, habitat acquisition and maintenance, propagation, live trapping, and transplantation, and, in the extraordinary case where population pres ...
... methods and procedures include, but are not limited to, all activities associated with scientific resources management such as research, census, law enforcement, habitat acquisition and maintenance, propagation, live trapping, and transplantation, and, in the extraordinary case where population pres ...
Ecosystem Services: From Biodiversity to Society, Part 1
... 2005. Although ES had been studied before then, under a variety of different names and from somewhat different perspectives, it was with the MEA that the field really took off. The number of papers on ES has been growing since then, with ES accounting for an ever-larger slice of the total number of ...
... 2005. Although ES had been studied before then, under a variety of different names and from somewhat different perspectives, it was with the MEA that the field really took off. The number of papers on ES has been growing since then, with ES accounting for an ever-larger slice of the total number of ...
16-Mangrove
... 1. Plant succession due to land building - plant zonation - a successional sequence But do mangroves cause different patterns of sediment deposition or just respond to deposition? ...
... 1. Plant succession due to land building - plant zonation - a successional sequence But do mangroves cause different patterns of sediment deposition or just respond to deposition? ...
MacNeil, Calum, Jaimie T. A. Dick, Mark P. Johnson, Melanie J
... We compared weekly mean percentage of survivorship (arcsine transformed; Sokal and Rohlf 1995) among treatments using SuperANOVA (Abacus Concepts 1989). Figures show raw mean percent for clarity. Survivorship of G. pulex was examined in a two-factor analysis of variance with respect to ’’G. duebeni ...
... We compared weekly mean percentage of survivorship (arcsine transformed; Sokal and Rohlf 1995) among treatments using SuperANOVA (Abacus Concepts 1989). Figures show raw mean percent for clarity. Survivorship of G. pulex was examined in a two-factor analysis of variance with respect to ’’G. duebeni ...
Foraging behaviours and population dynamics of arctic foxes
... listened to way more Led Zeppelin than they had though possible – thank you for all your help! Also, this thesis would not have been possible if it wasn’t for Ray – thank you for being a great advisor and for giving me the chance to work at such an exciting place! Thank you also Ray and Penny for yo ...
... listened to way more Led Zeppelin than they had though possible – thank you for all your help! Also, this thesis would not have been possible if it wasn’t for Ray – thank you for being a great advisor and for giving me the chance to work at such an exciting place! Thank you also Ray and Penny for yo ...
(Diptera: Culicidae) Within the United States?
... one that was found in Asia during the 20th century, where Ae. aegypti populations underwent range expansion into locations where Ae. albopictus populations were declining (reviewed in Hawley 1988). The mechanism for displacement in Asia has many hypotheses, although under one scenario, niche differe ...
... one that was found in Asia during the 20th century, where Ae. aegypti populations underwent range expansion into locations where Ae. albopictus populations were declining (reviewed in Hawley 1988). The mechanism for displacement in Asia has many hypotheses, although under one scenario, niche differe ...
R ,
... Canada, unpubl. data). A two-tailed t-test was performed on chl a concentrations in reference and invaded lakes. Lakes sorted by increasing Bythotrephes abundance. A = absent, A/P = absent, but detected in past, VL = very low, L = low, M = medium, H = high, N/A = not available, P= present…………………..57 ...
... Canada, unpubl. data). A two-tailed t-test was performed on chl a concentrations in reference and invaded lakes. Lakes sorted by increasing Bythotrephes abundance. A = absent, A/P = absent, but detected in past, VL = very low, L = low, M = medium, H = high, N/A = not available, P= present…………………..57 ...
BIOTIC INTERACTIONS WITHIN SANDY BEACH ECOSYSTEMS
... 3.3 Relative importance of abiotic variables versus species densities.......................................... 33 4. Discussion ...................................................................................................................................... 33 4.1 Role of abiotic variables and ...
... 3.3 Relative importance of abiotic variables versus species densities.......................................... 33 4. Discussion ...................................................................................................................................... 33 4.1 Role of abiotic variables and ...
Ecological Role of Vertebrate Scavengers
... detect distant carrion resources in benthic ecosystems (Smith 1985). In combination/these traits are the hlilimark of the group of organisms best adapted to scavenging as a way of life. Outside of this specialized group, the highly diverse assemblage of facultative scavengers varies in huw frequentl ...
... detect distant carrion resources in benthic ecosystems (Smith 1985). In combination/these traits are the hlilimark of the group of organisms best adapted to scavenging as a way of life. Outside of this specialized group, the highly diverse assemblage of facultative scavengers varies in huw frequentl ...
Rotifera X
... of Brachionus calyciflorus conclude that it is a species complex in which some geographically and genetically distinct strains are reproductively isolated from one another. Bdelloid rotifers can withstand desiccation by entering a state of suspended animation: anhydrobiosis. Ricci and Covino describe ...
... of Brachionus calyciflorus conclude that it is a species complex in which some geographically and genetically distinct strains are reproductively isolated from one another. Bdelloid rotifers can withstand desiccation by entering a state of suspended animation: anhydrobiosis. Ricci and Covino describe ...
View PDF - Cramer Fish Sciences
... principle predicts that species richness will increase with increasing spatial heterogeneity, as observed in many other taxa and as predicted by niche theory (e.g. 1, 91). Both the second and third principles embody aspects of disturbance ecology. The second principle makes similar predictions to th ...
... principle predicts that species richness will increase with increasing spatial heterogeneity, as observed in many other taxa and as predicted by niche theory (e.g. 1, 91). Both the second and third principles embody aspects of disturbance ecology. The second principle makes similar predictions to th ...
LIFE HISTORY VARIATION AND DIET OF THE ENDANGERED
... focal population following a drastic increase in salinity. Naturally, the presence of more resilient adult individuals allows tidewater goby populations to persist through these periodic environmental fluctuations with high juvenile mortality. In contrast, a narrow population age structure, associat ...
... focal population following a drastic increase in salinity. Naturally, the presence of more resilient adult individuals allows tidewater goby populations to persist through these periodic environmental fluctuations with high juvenile mortality. In contrast, a narrow population age structure, associat ...
abstracts - NAOC 2016
... Despite the recent development of a North American standardized protocol for monitoring breeding marsh birds and a national repository for the survey data, tidal marsh bird distribution and abundance along the Gulf of Mexico are still poorly understood. Many projects have employed marsh bird surveys ...
... Despite the recent development of a North American standardized protocol for monitoring breeding marsh birds and a national repository for the survey data, tidal marsh bird distribution and abundance along the Gulf of Mexico are still poorly understood. Many projects have employed marsh bird surveys ...
Ogasawara Islands Ecosystem Conservation Action Plan
... ・With regard to animals,“area exclusion” is an “action” to remove individuals to achieve a “condition” where no individual is left within a specific area. With regard to plants,“area exclusion” is an “action” to maintain the main trees for woody plants and the main colony for herbaceous plants to ze ...
... ・With regard to animals,“area exclusion” is an “action” to remove individuals to achieve a “condition” where no individual is left within a specific area. With regard to plants,“area exclusion” is an “action” to maintain the main trees for woody plants and the main colony for herbaceous plants to ze ...
Native grouper indirectly ameliorates the negative effects of invasive
... ent at any of the solution holes at the start of the experiment. We randomly assigned the 16 red grouperFlorida Bay is a large open embayment in south occupied solution holes to one of 4 treatment groups Florida bordered by the Florida Keys, the Ever(n = 4): (1) no predators; (2) lionfish alone; (3) ...
... ent at any of the solution holes at the start of the experiment. We randomly assigned the 16 red grouperFlorida Bay is a large open embayment in south occupied solution holes to one of 4 treatment groups Florida bordered by the Florida Keys, the Ever(n = 4): (1) no predators; (2) lionfish alone; (3) ...
The Hoary Marmot of the North Cascades in Washington
... stable with native species. The vegetation has a simple structure; however, slight variations in slope and aspect significantly impact changes in habitat types throughout the alpine zone. These small and drastic changes demonstrate the sensitivity of the alpine environment. Precipitation and tempera ...
... stable with native species. The vegetation has a simple structure; however, slight variations in slope and aspect significantly impact changes in habitat types throughout the alpine zone. These small and drastic changes demonstrate the sensitivity of the alpine environment. Precipitation and tempera ...
Impact of Cattle Grazing on the Smith`s Blue Butterfly, Its Host Plant
... most dominant species, an exotic annual grass (Bromus diandrus), which may have long-term implications about the persistence of this competitive dominant in grazed systems. Two hypotheses might explain the lack of response in native species; they may have life history characteristics that prevented ...
... most dominant species, an exotic annual grass (Bromus diandrus), which may have long-term implications about the persistence of this competitive dominant in grazed systems. Two hypotheses might explain the lack of response in native species; they may have life history characteristics that prevented ...