Ecological Observations of Some Common Antipatharian Corals in
... each studied species or group of species, a peculiar habitat could be identified (Fig. 6). Cirrhipathes contorta was typically found associated with stony corals where it grew out of crevices between coral colonies. For other species, the trend in density followed an inverse relationship between the ...
... each studied species or group of species, a peculiar habitat could be identified (Fig. 6). Cirrhipathes contorta was typically found associated with stony corals where it grew out of crevices between coral colonies. For other species, the trend in density followed an inverse relationship between the ...
CHAPTER 9 POPULATION ECOLOGY Objectives
... A. Variations in genetic diversity can affect the survival of small, isolated populations. 1. Several factors can play a role in loss of genetic diversity and survival of a small population. 2. The founder effect is when a few individuals move to a new location that is isolated from the original pop ...
... A. Variations in genetic diversity can affect the survival of small, isolated populations. 1. Several factors can play a role in loss of genetic diversity and survival of a small population. 2. The founder effect is when a few individuals move to a new location that is isolated from the original pop ...
Competition Powerpoint
... Consequently, managing an ecosystem for high biodiversity may require periodic or spatially-patchy disturbances ...
... Consequently, managing an ecosystem for high biodiversity may require periodic or spatially-patchy disturbances ...
Biodiversity Principles and Applications
... only at certain scales. Dynamic change over time occurs from place to place. Biodiversity in forest communities does not scale up easily. That is, the processes at one level are different from the processes at another level. Unless all possible scales and processes of diversity are taken into accoun ...
... only at certain scales. Dynamic change over time occurs from place to place. Biodiversity in forest communities does not scale up easily. That is, the processes at one level are different from the processes at another level. Unless all possible scales and processes of diversity are taken into accoun ...
Genetic evidence for the cryptic species pair, Lottia digitalis and
... Sibling species are deWned as sister species that are impossible or extremely diYcult to distinguish based on morphological characters alone (Mayr and Ashlock 1991). Marine sibling species are ubiquitous, found from the poles to the tropics, in most known habitats, and at depths ranging from interti ...
... Sibling species are deWned as sister species that are impossible or extremely diYcult to distinguish based on morphological characters alone (Mayr and Ashlock 1991). Marine sibling species are ubiquitous, found from the poles to the tropics, in most known habitats, and at depths ranging from interti ...
Biodiversity is Autocatalytic
... the carrying capacity of the ecosystem. At the same time, niches and mutualistic networks of the ecosystem allow, through circular and feedback mechanisms, the rise of the number of species, generating a non-linear autopoietic system.” According to the BNDT, generalist species (e.g. pioneers) expand ...
... the carrying capacity of the ecosystem. At the same time, niches and mutualistic networks of the ecosystem allow, through circular and feedback mechanisms, the rise of the number of species, generating a non-linear autopoietic system.” According to the BNDT, generalist species (e.g. pioneers) expand ...
Parasitological Consequences of Overcrowding in - MiVEGEC
... are in total agreement: local host density is a major determinant of infection levels and the number of parasite species supported by a host population. In addition, as illustrated by recent mathematical developments (Hochberg et al., 2000), demographic differences across geographical landscapes can ...
... are in total agreement: local host density is a major determinant of infection levels and the number of parasite species supported by a host population. In addition, as illustrated by recent mathematical developments (Hochberg et al., 2000), demographic differences across geographical landscapes can ...
Priority effects: natives, but not exotics, pay to arrive late
... 4-week-old seedling of each of four species (a mix of exotics and natives) (early arrival) and then added a single 6.5-week-old seedling of each of the remaining twelve species eighteen days later (late arrival) to create mesocosms that ultimately contained all 16 of the study species (one individua ...
... 4-week-old seedling of each of four species (a mix of exotics and natives) (early arrival) and then added a single 6.5-week-old seedling of each of the remaining twelve species eighteen days later (late arrival) to create mesocosms that ultimately contained all 16 of the study species (one individua ...
Tracking Rare Orchids (Orchidaceae) in Arizona
... of the wild orchids: Stenorrhynchos michuncnnum, Hexnlectris revolutn, Mnlnxis porphyrm, and M. tenuis. The studies are ongoing so only interim results are available. Interim results indicate that plants of S. michtincantim and H. rez~olutndo not bloom every year, and in the latter case do not come ...
... of the wild orchids: Stenorrhynchos michuncnnum, Hexnlectris revolutn, Mnlnxis porphyrm, and M. tenuis. The studies are ongoing so only interim results are available. Interim results indicate that plants of S. michtincantim and H. rez~olutndo not bloom every year, and in the latter case do not come ...
ALTERNATIVE COMPETITIVE STRATEGIES IN A PERIODICALL Y
... Discovery Bay, Jamaica. In the lee of the reef crest is a relatively protected location where several sessile cnidarian species are quite common living on dead, unconsolidated coral substratum. One very common cnidarian here is Zoanthus so/anderi which is somewhat larger and less well attached to th ...
... Discovery Bay, Jamaica. In the lee of the reef crest is a relatively protected location where several sessile cnidarian species are quite common living on dead, unconsolidated coral substratum. One very common cnidarian here is Zoanthus so/anderi which is somewhat larger and less well attached to th ...
Comparative Population Ecology of Eleven Species
... The 11 species considered in this paper differ greatly in taxonomic affinity and natural history. They represent seven genera and two families: Heteromyidae: Dipodomys spectabilis, D. ordii, D. merriami, Chaetodipus penicillatus, and Perognathus flavus; and Muridae: Neotoma albigula, Onychomys leuco ...
... The 11 species considered in this paper differ greatly in taxonomic affinity and natural history. They represent seven genera and two families: Heteromyidae: Dipodomys spectabilis, D. ordii, D. merriami, Chaetodipus penicillatus, and Perognathus flavus; and Muridae: Neotoma albigula, Onychomys leuco ...
A meta-analysis of the effects of cushion plants on high
... Badano and Cavieres 2006a). Here, we use published studies which examined the association of other vascular plant species to cushions and surrounding micro-habitats. Via a metaanalysis we investigated the following questions: (1) is there a generalized positive effect of cushions on other plant spec ...
... Badano and Cavieres 2006a). Here, we use published studies which examined the association of other vascular plant species to cushions and surrounding micro-habitats. Via a metaanalysis we investigated the following questions: (1) is there a generalized positive effect of cushions on other plant spec ...
Riparian zones - Environment Canterbury
... moisture availability permits the development of a root system before the more stressing drier seasons. A number of native plants, however, are frost-sensitive so their establishment should be delayed until spring (October-November). Watering may be required. ...
... moisture availability permits the development of a root system before the more stressing drier seasons. A number of native plants, however, are frost-sensitive so their establishment should be delayed until spring (October-November). Watering may be required. ...
The role of competitive dominance in the invasive ability of the
... necessarily mean that the lowest-ranked species are unable to survive in communities with dominant species. The lowest rank consists of species with very little aggression which usually only fight to defend their nests. Ants of this kind are the same as the ‘‘opportunist’’ species described by Wilso ...
... necessarily mean that the lowest-ranked species are unable to survive in communities with dominant species. The lowest rank consists of species with very little aggression which usually only fight to defend their nests. Ants of this kind are the same as the ‘‘opportunist’’ species described by Wilso ...
Wet Tropics of Queensland
... proteaceae, in particular the more primitive genera of the family. These genera represent the nearest relatives of the ancestors of the sclerophyll types, for example, banksias, grevilleas, and persoonias, which form a major part of the Australian flora. There is a large number of plant species with ...
... proteaceae, in particular the more primitive genera of the family. These genera represent the nearest relatives of the ancestors of the sclerophyll types, for example, banksias, grevilleas, and persoonias, which form a major part of the Australian flora. There is a large number of plant species with ...
Full PDF Report... - The Rewilding Institute
... parasites, and diseases; and later by industrial pollution. Islands lost birds, giant tortoises, and small mammals. On continents, some birds, fish, and large mammals have been driven into extinction, but many more species of birds, freshwater fish, and large mammals have had their numbers drastical ...
... parasites, and diseases; and later by industrial pollution. Islands lost birds, giant tortoises, and small mammals. On continents, some birds, fish, and large mammals have been driven into extinction, but many more species of birds, freshwater fish, and large mammals have had their numbers drastical ...
Effectiveness of scat-detection dogs in determining species
... variation in the error term can then be used to determine the number of repeated surveys necessary to detect species presence with a given level of certainty. To quantify the level of effort required to detect species presence within our study area, we developed and applied models that determined th ...
... variation in the error term can then be used to determine the number of repeated surveys necessary to detect species presence with a given level of certainty. To quantify the level of effort required to detect species presence within our study area, we developed and applied models that determined th ...
Conservation on reserve
... In 2010, 193 national signatories of the Convention on Biological Diversity (CBD) adopted a new strategic plan to tackle the continuing decline in biodiversity. Part of that plan included a set of targets (known as the Aichi Targets) and one of those targets (no. 11) involved an ambitious commitment ...
... In 2010, 193 national signatories of the Convention on Biological Diversity (CBD) adopted a new strategic plan to tackle the continuing decline in biodiversity. Part of that plan included a set of targets (known as the Aichi Targets) and one of those targets (no. 11) involved an ambitious commitment ...
How Illinois Kicked the Exotic Habit
... pheasant (which is expanding its range in Illinois) and the native prairie chicken (which is an endangered species in Illinois) may be the final factor causing the extirpation of the prairie chicken from Illinois; it has already been extirpated from neighboring Indiana. In 1953, Klimstra and Hankla ...
... pheasant (which is expanding its range in Illinois) and the native prairie chicken (which is an endangered species in Illinois) may be the final factor causing the extirpation of the prairie chicken from Illinois; it has already been extirpated from neighboring Indiana. In 1953, Klimstra and Hankla ...
Raphicerus campestris - Endangered Wildlife Trust
... As displayed by their stable widespread distribution, Steenbok are generally resilient to high hunting pressure and habitat alteration, resulting from expanding development, and are frequently present along the margins of developing areas and within cultivated regions (Skinner & Chimimba 2005). Howe ...
... As displayed by their stable widespread distribution, Steenbok are generally resilient to high hunting pressure and habitat alteration, resulting from expanding development, and are frequently present along the margins of developing areas and within cultivated regions (Skinner & Chimimba 2005). Howe ...
Convergence, Competition, and Mimicry in a
... to dense forests of mixed conifers at the highest elevations. At all altitudes, there were patches of open habitat with few if any trees; these included natural meadows, talus slopes and cliffs, as well as man-made meadows and roadsides. Artificially disturbed habitats often supported large populati ...
... to dense forests of mixed conifers at the highest elevations. At all altitudes, there were patches of open habitat with few if any trees; these included natural meadows, talus slopes and cliffs, as well as man-made meadows and roadsides. Artificially disturbed habitats often supported large populati ...
Major Mitchell`s Cockato (Cacatua leadbeateri)
... Major Mitchell’s Cockatoo probably needs a more varied diet than other cockatoos (Rowley and Chapman 1991). In north-west Victoria this restricts the birds largely to native vegetation or the boundaries of cropped land. They are relatively poor fliers (Forshaw and Cooper 1981) ...
... Major Mitchell’s Cockatoo probably needs a more varied diet than other cockatoos (Rowley and Chapman 1991). In north-west Victoria this restricts the birds largely to native vegetation or the boundaries of cropped land. They are relatively poor fliers (Forshaw and Cooper 1981) ...
Proteomic characterization of the major arthropod
... species and specific proteins even from a mixed protein sample. Such methods would be particularly useful if coupled with quantitative proteomic approaches such as AQUA analyses [11]. It is important to note, however, that the relative abundance of a given protein may only be a rough indicator of th ...
... species and specific proteins even from a mixed protein sample. Such methods would be particularly useful if coupled with quantitative proteomic approaches such as AQUA analyses [11]. It is important to note, however, that the relative abundance of a given protein may only be a rough indicator of th ...
Identifying Conservation and Restoration Priorities for
... Research, Case postale 96, c/o EPFL, 1015 Lausanne, Switzerland ...
... Research, Case postale 96, c/o EPFL, 1015 Lausanne, Switzerland ...
Biodiversity and ecosystem functioning: reconciling the
... the Bibury species pool). Indeed the herbicide application experiments that existed at Bibury prior to 1990 could serve as a removal experiment as long as the herbicide reduced diversity of the treatment plots relative to controls. More generally, comparison of experimental and observational studies ...
... the Bibury species pool). Indeed the herbicide application experiments that existed at Bibury prior to 1990 could serve as a removal experiment as long as the herbicide reduced diversity of the treatment plots relative to controls. More generally, comparison of experimental and observational studies ...
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.