Long-Distance Dispersal of Plants
... observed dispersal distances. This evidence comes from ecological studies (scales of several kilometers; see below) and biogeographical studies Ee.g., multiple colonizations of remote islands such as Hawaii (7) and intercontinental disjunctions across the Atlantic Ocean (8)^. The rarity and stochast ...
... observed dispersal distances. This evidence comes from ecological studies (scales of several kilometers; see below) and biogeographical studies Ee.g., multiple colonizations of remote islands such as Hawaii (7) and intercontinental disjunctions across the Atlantic Ocean (8)^. The rarity and stochast ...
IMPACT OF PREDATORS ON THE ABUNDANCE OF
... on other species is more rarely taken into account. Earthworms, called “ecosystem engineers” ...
... on other species is more rarely taken into account. Earthworms, called “ecosystem engineers” ...
Appendix C, Part 1
... As most shorebirds are restricted to fairly typical habitats at most times of the year, it was relatively easy to identify the types of habitats used by each species when present in BCR-14, using the standard list provided at the workshop. These habitat types are listed in approximate decreasing ord ...
... As most shorebirds are restricted to fairly typical habitats at most times of the year, it was relatively easy to identify the types of habitats used by each species when present in BCR-14, using the standard list provided at the workshop. These habitat types are listed in approximate decreasing ord ...
grouse news - Galliformes Specialist Group
... “This is welcome news for all Nevadans. I applaud the local area working group, private citizens, Tribes, the Nevada Department of Wildlife and our federal partners for their tremendous efforts to develop conservation actions that preclude the need to list the species while still allowing for sustai ...
... “This is welcome news for all Nevadans. I applaud the local area working group, private citizens, Tribes, the Nevada Department of Wildlife and our federal partners for their tremendous efforts to develop conservation actions that preclude the need to list the species while still allowing for sustai ...
PhD Thesis - Universidad Autónoma de Madrid
... of the adrenal activity was performed in the laboratory by an enzyme immunoassay. Results showed that wood mice (Apodemus sylvaticus) individuals responded to predation risk situations by recognizing and avoiding their main known predators in the study areas (they did not respond to the faecal odour ...
... of the adrenal activity was performed in the laboratory by an enzyme immunoassay. Results showed that wood mice (Apodemus sylvaticus) individuals responded to predation risk situations by recognizing and avoiding their main known predators in the study areas (they did not respond to the faecal odour ...
Multispecies advice
... sufficiently evaluated. The MSY reference points are sensitive to changes in density-dependent effects, cannibalism, and environmental drivers that affect recruitment and body growth. The single- and multispecies FMSY are similar, though BMSY of cod may vary by up to a factor 1.74 (Table 8.3.3.1). ...
... sufficiently evaluated. The MSY reference points are sensitive to changes in density-dependent effects, cannibalism, and environmental drivers that affect recruitment and body growth. The single- and multispecies FMSY are similar, though BMSY of cod may vary by up to a factor 1.74 (Table 8.3.3.1). ...
generality of leaf trait relationships: a test across six biomes
... sampling was designed so that measurements were taken to closely reflect leaf photosynthetic capacity in the field at ambient CO2 concentration (Reich et al. 1991, Ellsworth and Reich 1992). We took at least 10 (but usually more) measurements per species from several individuals at each site, then a ...
... sampling was designed so that measurements were taken to closely reflect leaf photosynthetic capacity in the field at ambient CO2 concentration (Reich et al. 1991, Ellsworth and Reich 1992). We took at least 10 (but usually more) measurements per species from several individuals at each site, then a ...
Effects of tree species diversity on insect herbivory
... It is generally believed that tree species growing in mixed forest stands are less susceptible to insect herbivore damage than if grown in monocultures, but previous studies have been largely observational and focussed mainly on tree species richness effects. In this thesis, I examined effects of th ...
... It is generally believed that tree species growing in mixed forest stands are less susceptible to insect herbivore damage than if grown in monocultures, but previous studies have been largely observational and focussed mainly on tree species richness effects. In this thesis, I examined effects of th ...
programmatic biological assessment, conference report, and
... of the threatened and endangered, proposed, candidate or sensitive species listed below, and to describe conservation measures that CDOT will take to mitigate those impacts. CDOT has three goals: 1) proactive conservation of declining species in the central Shortgrass Prairie Ecoregion of Colorado; ...
... of the threatened and endangered, proposed, candidate or sensitive species listed below, and to describe conservation measures that CDOT will take to mitigate those impacts. CDOT has three goals: 1) proactive conservation of declining species in the central Shortgrass Prairie Ecoregion of Colorado; ...
Report on the conservation status and threats for wolf (Canis lupus
... The wolf is the most controversial predator in Europe, as it occupies conflicting places in people’s imaginations, being simultaneously loved and hated. On one hand it is held up as symbol of wilderness and the return of nature, while for others wolves symbolise waste, destruction and negative chang ...
... The wolf is the most controversial predator in Europe, as it occupies conflicting places in people’s imaginations, being simultaneously loved and hated. On one hand it is held up as symbol of wilderness and the return of nature, while for others wolves symbolise waste, destruction and negative chang ...
Marine Ecology Progress Series 273:251
... nificant. Thus, there is a clear gradient generalised CIs. An analysis of heterogeneity divided the total hetover all marine taxa, even when many non-signifierogeneity in the effect sizes into heterogeneity excant data are included. plained by the categorical variables (Q b) and residual A clear sep ...
... nificant. Thus, there is a clear gradient generalised CIs. An analysis of heterogeneity divided the total hetover all marine taxa, even when many non-signifierogeneity in the effect sizes into heterogeneity excant data are included. plained by the categorical variables (Q b) and residual A clear sep ...
DEPARTAMENT DE ZOOLOGIA BIODIVERSITY AND STRUCTURE OF PARASITE BOOPS BOOPS
... infracommunity level. The structured spatial patterns were consistent in time but not across seasons, since only component communities sampled in spring exhibited a highly structured spatial pattern. The spatial synchrony observed was solely due to the assemblage of the ‘core’ species, thus supporti ...
... infracommunity level. The structured spatial patterns were consistent in time but not across seasons, since only component communities sampled in spring exhibited a highly structured spatial pattern. The spatial synchrony observed was solely due to the assemblage of the ‘core’ species, thus supporti ...
7.0 TERRESTRIAL ENVIRONMENT .........................................................
... terrestrial environmental components identified in the Guidelines (Section 6.3) form the basis for the assessment of the Project’s predicted effects and impacts on the environment. Where existing available terrestrial information did not exist or was insufficient, field studies were initiated to add ...
... terrestrial environmental components identified in the Guidelines (Section 6.3) form the basis for the assessment of the Project’s predicted effects and impacts on the environment. Where existing available terrestrial information did not exist or was insufficient, field studies were initiated to add ...
Volume 2, Chapter 7-4 Arthropods: Spiders and Peatlands
... studies dealing directly with spiders and preferred moss species are known to us. Most information is scattered in the literature, and in most instances only relate spider habitats in respect to mosses to higher taxonomical levels such as "among moss" or "in Sphagnum bogs" (Figure 1). ...
... studies dealing directly with spiders and preferred moss species are known to us. Most information is scattered in the literature, and in most instances only relate spider habitats in respect to mosses to higher taxonomical levels such as "among moss" or "in Sphagnum bogs" (Figure 1). ...
Linkages in the Landscape
... the environmental crisis had to find a way to ensure the protection of “ecosystems of priority importance”. The first protected area designations were made to ensure that, whatever human development might occur, some places would remain untouched. In other words, protected areas have been designed, ...
... the environmental crisis had to find a way to ensure the protection of “ecosystems of priority importance”. The first protected area designations were made to ensure that, whatever human development might occur, some places would remain untouched. In other words, protected areas have been designed, ...
PACE, MICHAEL L., AND DOLORS VAQUÉ. The importance of
... times of the year. Highest rates were observed County, New York. Zooplankton biomass in when Daphnia constituted a major component Upton is dominated by two species of Daphof the zooplankton biomass (Car-rick et al. nia. A medium-sized species, Daphnia galeata, occupies the upper portion of the meta ...
... times of the year. Highest rates were observed County, New York. Zooplankton biomass in when Daphnia constituted a major component Upton is dominated by two species of Daphof the zooplankton biomass (Car-rick et al. nia. A medium-sized species, Daphnia galeata, occupies the upper portion of the meta ...
Mesoherbivory: the ascoglossan sea slug Placida dendritica may
... ignored. From 1985 to 1990, I investigated the association of the oligophagous ascoglossan (=sacoglosSan) sea slug Placida dendn'tica (Gastropoda: Opisthobranchia) with one of its algal food species, the crustose green alga Codium setchellii, along the central coast of Oregon, USA. The alga has a re ...
... ignored. From 1985 to 1990, I investigated the association of the oligophagous ascoglossan (=sacoglosSan) sea slug Placida dendn'tica (Gastropoda: Opisthobranchia) with one of its algal food species, the crustose green alga Codium setchellii, along the central coast of Oregon, USA. The alga has a re ...
Direct inhibition of leaf dark respiration by elevated CO is
... Individual species were sampled repeatedly across the eight measurement days. On a given measurement date one plot was sampled from each of 11 species or subset. Across days, four to six samples were obtained for each species, except for Lespedeza capitata (n = 2) for which fewer plants were availab ...
... Individual species were sampled repeatedly across the eight measurement days. On a given measurement date one plot was sampled from each of 11 species or subset. Across days, four to six samples were obtained for each species, except for Lespedeza capitata (n = 2) for which fewer plants were availab ...
The effects of landscape fragmentation on
... pollination services, 182 discussed their results as being the effects of habitat fragmentation. Fifty-eight included ...
... pollination services, 182 discussed their results as being the effects of habitat fragmentation. Fifty-eight included ...
The dependence of root system properties on root system biomass... North American grassland species
... and the other 7 species had non-significant trends for increasing tissue density with increasing belowground biomass (average rate of increase = 0.00010 g root biomass cm−3 g−1 root biomass m−2 ). The average diameter of root systems decreased significantly (p<0.05) with increasing belowground bioma ...
... and the other 7 species had non-significant trends for increasing tissue density with increasing belowground biomass (average rate of increase = 0.00010 g root biomass cm−3 g−1 root biomass m−2 ). The average diameter of root systems decreased significantly (p<0.05) with increasing belowground bioma ...
1999, pp. 1955-1969 © 1999 by the Ecological Society of America
... sampling was designed so that measurements were taken to closely reflect leaf photosynthetic capacity in the field at ambient CO, concentration (Reich et al. 1991, Ellsworth and Reich 1992). We took at least 10 (but usually more) measurements per species from several individuals at each site, then a ...
... sampling was designed so that measurements were taken to closely reflect leaf photosynthetic capacity in the field at ambient CO, concentration (Reich et al. 1991, Ellsworth and Reich 1992). We took at least 10 (but usually more) measurements per species from several individuals at each site, then a ...
Plio-Pleistocene large carnivores from the Italian peninsula
... The evolutionary history of large carnivorous mammals through the Ice Age have been investigated for the Italian peninsula. No endemisms are recorded in the mainland of Italy and large carnivore species composition reflected the similar fauna of European continent. Morpho-ecological adaptation of ex ...
... The evolutionary history of large carnivorous mammals through the Ice Age have been investigated for the Italian peninsula. No endemisms are recorded in the mainland of Italy and large carnivore species composition reflected the similar fauna of European continent. Morpho-ecological adaptation of ex ...
CO # 21: Ensure that structural habitat provided by corals on the
... deep, soft-sediment environments. Their longevity has not been well studied, but their smaller size suggests a shorter lifespan and hence lesser sensitivity to damage. Cup corals, sea pens and soft corals also contribute to diversity on the seafloor, but do not provide structural habitat in the sam ...
... deep, soft-sediment environments. Their longevity has not been well studied, but their smaller size suggests a shorter lifespan and hence lesser sensitivity to damage. Cup corals, sea pens and soft corals also contribute to diversity on the seafloor, but do not provide structural habitat in the sam ...
Spatial Dynamics in the Growth and Spread of Halimeda and
... Table 1.1. Morphological features of Halimeda and Dictyota species………………….12 Table 2.1. Parameters in SPREAD that are held constant in all the scenario runs……...33 Table 2.2. Parameters in SPREAD that vary for site-specific scenario runs……………34 Table 3.1. Description of SPREAD parameters used in sim ...
... Table 1.1. Morphological features of Halimeda and Dictyota species………………….12 Table 2.1. Parameters in SPREAD that are held constant in all the scenario runs……...33 Table 2.2. Parameters in SPREAD that vary for site-specific scenario runs……………34 Table 3.1. Description of SPREAD parameters used in sim ...
The Action Plan for Threatened Australian Macropods
... actions required to achieve down-listing in threat status of 21 species of macropod on the IUCN Red List of Threatened species by 2021. In order to achieve this plan, $290 million will be needed, perhaps one order of magnitude more than currently invested in threatened macropod recovery in Australia ...
... actions required to achieve down-listing in threat status of 21 species of macropod on the IUCN Red List of Threatened species by 2021. In order to achieve this plan, $290 million will be needed, perhaps one order of magnitude more than currently invested in threatened macropod recovery in Australia ...