Trait matching of flower visitors and crops predicts
... other in the pollination of flowers with easily accessible rewards vs. those with rewards hidden at the bottom of a tubular corolla, respectively (i.e. trait matching) (Fontaine et al. 2006; Campbell et al. 2012). Small-sized bees transported less pollen to pumpkin flowers than bigger bees, but this ...
... other in the pollination of flowers with easily accessible rewards vs. those with rewards hidden at the bottom of a tubular corolla, respectively (i.e. trait matching) (Fontaine et al. 2006; Campbell et al. 2012). Small-sized bees transported less pollen to pumpkin flowers than bigger bees, but this ...
GB NON-NATIVE ORGANISM RISK ASSESSMENT SCHEME
... be introduced? If in doubt, then a separate assessment of the probability of introduction of this species may be needed. ...
... be introduced? If in doubt, then a separate assessment of the probability of introduction of this species may be needed. ...
Oak Savanna - WordPress.com
... It is important to educate landowners of the benefits of keeping oak savanna in their landscape since most of the remaining oak habitat is on private land. Oak savannas potential performance under predicted climate change conditions provide meaningful motivation for maintaining oak savanna on privat ...
... It is important to educate landowners of the benefits of keeping oak savanna in their landscape since most of the remaining oak habitat is on private land. Oak savannas potential performance under predicted climate change conditions provide meaningful motivation for maintaining oak savanna on privat ...
- Wiley Online Library
... Predicting biological responses of communities to climate change will require us to know about the interaction between local community dynamics and regional dispersal. Some consensus has emerged that species sorting and, to a lesser degree, mass effects (i.e., multispecies source-sink dynamics) domi ...
... Predicting biological responses of communities to climate change will require us to know about the interaction between local community dynamics and regional dispersal. Some consensus has emerged that species sorting and, to a lesser degree, mass effects (i.e., multispecies source-sink dynamics) domi ...
A crucial step toward realism: responses to climate
... Predicting biological responses of communities to climate change will require us to know about the interaction between local community dynamics and regional dispersal. Some consensus has emerged that species sorting and, to a lesser degree, mass effects (i.e., multispecies source-sink dynamics) domi ...
... Predicting biological responses of communities to climate change will require us to know about the interaction between local community dynamics and regional dispersal. Some consensus has emerged that species sorting and, to a lesser degree, mass effects (i.e., multispecies source-sink dynamics) domi ...
effects of top predator species on direct
... experiments to compare the direct and indirect effects of three top-predator species, belonging to the same hunting spider guild, on the same species of grasshopper and on oldfield grasses and herbs. Observations under field conditions revealed that each spider species exhibited different hunting be ...
... experiments to compare the direct and indirect effects of three top-predator species, belonging to the same hunting spider guild, on the same species of grasshopper and on oldfield grasses and herbs. Observations under field conditions revealed that each spider species exhibited different hunting be ...
Observed Instances of Speciation
... example, to a botanist working with angiosperms ordinary means might mean a hand lens; to an entomologist working with beetles it might mean a dissecting microscope; to a phycologist working with diatoms it might mean a scanning electron microscope. What means are ordinary are determined by what is ...
... example, to a botanist working with angiosperms ordinary means might mean a hand lens; to an entomologist working with beetles it might mean a dissecting microscope; to a phycologist working with diatoms it might mean a scanning electron microscope. What means are ordinary are determined by what is ...
Interpreting the `selection effect` of biodiversity on ecosystem function
... For instance, in evolutionary biology, the two populations are the parental and offspring populations, with offspring ‘corresponding’ to their parent(s) (Price 1995; Frank 1997). As an illustration, consider an asexual species with uniparental inheritance (the more complex book-keeping required to a ...
... For instance, in evolutionary biology, the two populations are the parental and offspring populations, with offspring ‘corresponding’ to their parent(s) (Price 1995; Frank 1997). As an illustration, consider an asexual species with uniparental inheritance (the more complex book-keeping required to a ...
outstanding the plants sharply distinguished: is always - UvA-DARE
... Another feature which certainly complicates the correlation of the biotic communities with tidal levels is the seasonal shift of various algal belts. Borgesen the ...
... Another feature which certainly complicates the correlation of the biotic communities with tidal levels is the seasonal shift of various algal belts. Borgesen the ...
Hybridization, speciation
... been a general evolutionary factor of real importance… For instance when newly colonizable areas emerged from the sea or when various floras spread out onto the northern lands denuded by Pleistocene glaciations. 1. Along the coast of California there are peninsulas which once were isolated islands b ...
... been a general evolutionary factor of real importance… For instance when newly colonizable areas emerged from the sea or when various floras spread out onto the northern lands denuded by Pleistocene glaciations. 1. Along the coast of California there are peninsulas which once were isolated islands b ...
Overview of Ecological Responses to the Eruption of Mount St. Helens
... Effects of the 1980 eruption were strongly influenced by timing of the event at scales ranging from the time of day to the successional status of the ecological systems affected by the disturbance. The 8:32 a.m. beginning of the eruption, for example, occurred when many nocturnal mammals, such as mic ...
... Effects of the 1980 eruption were strongly influenced by timing of the event at scales ranging from the time of day to the successional status of the ecological systems affected by the disturbance. The 8:32 a.m. beginning of the eruption, for example, occurred when many nocturnal mammals, such as mic ...
NATURAL HISTORY OF AMAZON FISHES
... which may have contributed to the high degree of endemism of rapids-dwelling fishes. Unfortunately, these unique environments have been strongly threatened by construction of hydroelectric dams, which changed rapids stretches into enormous artificial lakes, with environmental conditions (water flow, ...
... which may have contributed to the high degree of endemism of rapids-dwelling fishes. Unfortunately, these unique environments have been strongly threatened by construction of hydroelectric dams, which changed rapids stretches into enormous artificial lakes, with environmental conditions (water flow, ...
Türk
... Türkiye faunası için ilk kayıtlar: Megaselia brevissima (Schmitz, 1924) ve Megaselia scalaris (Loew, 1866) (Diptera: Phoridae) Megaselia brevissima (Schmitz, 1924) ve Megaselia scalaris (Loew,1866) (Diptera: Phoridae) Türkiye için yeni kayıtlardır. Her iki tür çürüyen Xeropicta derbentina (Krynicki) ...
... Türkiye faunası için ilk kayıtlar: Megaselia brevissima (Schmitz, 1924) ve Megaselia scalaris (Loew, 1866) (Diptera: Phoridae) Megaselia brevissima (Schmitz, 1924) ve Megaselia scalaris (Loew,1866) (Diptera: Phoridae) Türkiye için yeni kayıtlardır. Her iki tür çürüyen Xeropicta derbentina (Krynicki) ...
The ghosts of competition past - Oceanographic Environmental
... pinniped-predators, pinniped-competitors, or pinnipedprey based on the combined metrics of TP and total length. Using TP ≥ 4.16 and total length ≥ 200 cm as thresholds, we classified 45 sharks as pinnipedpredators, including all marine mammal eating sharks identified by Cortés (n = 16), excluding Po ...
... pinniped-predators, pinniped-competitors, or pinnipedprey based on the combined metrics of TP and total length. Using TP ≥ 4.16 and total length ≥ 200 cm as thresholds, we classified 45 sharks as pinnipedpredators, including all marine mammal eating sharks identified by Cortés (n = 16), excluding Po ...
Eccentric Endemics
... On Madagascar, they are represented by the tenrecs, whose ancestors may well have been the first mammals to arrive on the island, 60- to 65-million years ago. All belong to a single family, Tenrecidae, which also includes the otter-shrews from West and Central Africa. On Madagascar they divide neatl ...
... On Madagascar, they are represented by the tenrecs, whose ancestors may well have been the first mammals to arrive on the island, 60- to 65-million years ago. All belong to a single family, Tenrecidae, which also includes the otter-shrews from West and Central Africa. On Madagascar they divide neatl ...
Squatter Pigeon (southern subspecies
... distribution and is now very highly restricted. The pre-1990 extent of occurrence (EOO) was 95,850 km2 based on a minimum convex polygon enclosing all mapped occurrences of the species in NSW (OEH 2016). This is likely to be an under-estimate of the original distribution due to the paucity of histor ...
... distribution and is now very highly restricted. The pre-1990 extent of occurrence (EOO) was 95,850 km2 based on a minimum convex polygon enclosing all mapped occurrences of the species in NSW (OEH 2016). This is likely to be an under-estimate of the original distribution due to the paucity of histor ...
Sink habitats can alter ecological outcomes for competing species
... 3. We prove that the inclusion of sink sites can alter this ecological outcome by either mediating coexistence, reversing competitive dominance, or facilitating a priority effect. 4. Sink-mediated coexistence requires the species to exhibit asymmetries in acquiring sink sites, the ‘inferior’ species ...
... 3. We prove that the inclusion of sink sites can alter this ecological outcome by either mediating coexistence, reversing competitive dominance, or facilitating a priority effect. 4. Sink-mediated coexistence requires the species to exhibit asymmetries in acquiring sink sites, the ‘inferior’ species ...
Relative importance of endogenous and exogenous mechanisms in
... list incorporates a great number of non-exclusive mechanisms, and there have been efforts to unite them all under a common synthetic framework. ...
... list incorporates a great number of non-exclusive mechanisms, and there have been efforts to unite them all under a common synthetic framework. ...
Alien plants in checklists and floras: towards better communication
... among aliens), the majority of the flora would appear on such a list since in contemporary highly disturbed landscapes many native plants occur at least partly in disturbed and human-made sites. In the same vein, a native plant (or a hybrid between two native plants), is still native, even if it now ...
... among aliens), the majority of the flora would appear on such a list since in contemporary highly disturbed landscapes many native plants occur at least partly in disturbed and human-made sites. In the same vein, a native plant (or a hybrid between two native plants), is still native, even if it now ...
Fact Sheet: Riparian Buffers in Parks
... regain function and species following a disturbance, are both necessary components of a sustainable ecosystem. Overall, the main goal of all ecological restorations is to improve ecosystem function to the point at which a system is sustainable, both resistant and resilient to future disturbance ev ...
... regain function and species following a disturbance, are both necessary components of a sustainable ecosystem. Overall, the main goal of all ecological restorations is to improve ecosystem function to the point at which a system is sustainable, both resistant and resilient to future disturbance ev ...
Speciation
... • The process of generating new species - A single species can generate multiple species • Allopatric speciation = species formation due to physical separation of populations - Can be separated by glaciers, rivers, mountains - The main mode of species creation Copyright © 2008 Pearson Education, Inc ...
... • The process of generating new species - A single species can generate multiple species • Allopatric speciation = species formation due to physical separation of populations - Can be separated by glaciers, rivers, mountains - The main mode of species creation Copyright © 2008 Pearson Education, Inc ...
Chap.8 Competition and coexistence
... Amensalism • Asymmetric competition is often called amensalism and may be particularly important in plants, wherein one species might secrete chemicals from its roots which inhibit the growth of other plants that do not secrete such chemicals. • Allelopathy ...
... Amensalism • Asymmetric competition is often called amensalism and may be particularly important in plants, wherein one species might secrete chemicals from its roots which inhibit the growth of other plants that do not secrete such chemicals. • Allelopathy ...
current status and future challenges
... occurrence of non-native plants is much lower in semi-natural mountain vegetation than along disturbed roadsides, especially at higher elevation and in protected areas (Seipel et al. 2012). Direct evidence from more detailed studies of non-native populations in mountains is scarcer. Although the dis ...
... occurrence of non-native plants is much lower in semi-natural mountain vegetation than along disturbed roadsides, especially at higher elevation and in protected areas (Seipel et al. 2012). Direct evidence from more detailed studies of non-native populations in mountains is scarcer. Although the dis ...
Non volant mammals of Dawesville-Binningup
... comprised five sites in the north of the study area in the Yalgorup National Park along White Hill Road, two in the middle of the study area along Preston Beach Road and a further five in the south of the area on privately owned lands in the Myalup area from the coast inland to the Old Coast Road. S ...
... comprised five sites in the north of the study area in the Yalgorup National Park along White Hill Road, two in the middle of the study area along Preston Beach Road and a further five in the south of the area on privately owned lands in the Myalup area from the coast inland to the Old Coast Road. S ...
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.