implications of invasion by juniperus virginiana on small mammals
... away from other traps within each cell and 6 or 12 m from traps in adjacent cells throughout the grid. We trapped seasonally (May, August, November, and February) from May 2001 to August 2002 for a total of 6 trapping periods. Within a season, one grid was trapped for 5 consecutive days, followed im ...
... away from other traps within each cell and 6 or 12 m from traps in adjacent cells throughout the grid. We trapped seasonally (May, August, November, and February) from May 2001 to August 2002 for a total of 6 trapping periods. Within a season, one grid was trapped for 5 consecutive days, followed im ...
Occurrence of Arbuscular Mycorrhizas and Dark Septate
... plants investigated was mycorrhizal and concluded that AM occurrence was a rare phenomenon in aquatic tropical plants. It was interesting that P. lapathifolium var. salicilfolium and C. multijuga var. multijuga came from Polygonaceae and Cruciferae, respectively, which were thought to rarely form AM ...
... plants investigated was mycorrhizal and concluded that AM occurrence was a rare phenomenon in aquatic tropical plants. It was interesting that P. lapathifolium var. salicilfolium and C. multijuga var. multijuga came from Polygonaceae and Cruciferae, respectively, which were thought to rarely form AM ...
Harmonia axyridis in Europe: spread and distribution of a non
... Silva 2002) and South Africa (N. Mgocheki, personal communication; J. Hatting, personal communication), and has been introduced in Egypt (Ferran et al. 2000) where it has become established around Cairo (S. Elnagdy, personal communication). In Europe early introductions of H. axyridis occurred in th ...
... Silva 2002) and South Africa (N. Mgocheki, personal communication; J. Hatting, personal communication), and has been introduced in Egypt (Ferran et al. 2000) where it has become established around Cairo (S. Elnagdy, personal communication). In Europe early introductions of H. axyridis occurred in th ...
P M A
... Because of their intelligence, visibility and frequent interactions with humans, marine mammals hold a special place in the minds of most people. Little wonder that, as a whole, marine mammals are afforded a higher level of protection than most other marine organisms. Nevertheless, they continue to ...
... Because of their intelligence, visibility and frequent interactions with humans, marine mammals hold a special place in the minds of most people. Little wonder that, as a whole, marine mammals are afforded a higher level of protection than most other marine organisms. Nevertheless, they continue to ...
Ecological and genetic models of diversity
... and a rate of output (extinction). The underpinning of the model is illustrated with a cartoon showing islands of variable size and distance from a mainland, the two key island characteristics assumed to determine rates of extinction and colonization (Fig. 1A). The MacArthur-Wilson model is widely a ...
... and a rate of output (extinction). The underpinning of the model is illustrated with a cartoon showing islands of variable size and distance from a mainland, the two key island characteristics assumed to determine rates of extinction and colonization (Fig. 1A). The MacArthur-Wilson model is widely a ...
2013rat
... unknown material that did not fit any of the previously listed food types. Food items were classified to the lowest taxonomic level possible using voucher specimens collected from the study site. Stable isotope analysis To augment the short-term diet assessment from stomach contents, the trophic pos ...
... unknown material that did not fit any of the previously listed food types. Food items were classified to the lowest taxonomic level possible using voucher specimens collected from the study site. Stable isotope analysis To augment the short-term diet assessment from stomach contents, the trophic pos ...
Niche Evolution, Trophic Structure, and Species Turnover in Model
... size determines each species’ metabolic rates as well as the identity of its predators, prey, and competitors. Loeuille and Loreau’s model produced either complex networks of omnivores or food webs with all species at distinct trophic levels, depending largely on whether species can eat a wide or na ...
... size determines each species’ metabolic rates as well as the identity of its predators, prey, and competitors. Loeuille and Loreau’s model produced either complex networks of omnivores or food webs with all species at distinct trophic levels, depending largely on whether species can eat a wide or na ...
Experimental Manipulation of Grassland Plant Diversity Induces
... between consumer richness and plant species richness. Scherber et al. [6] found higher species richness and abundances of all consumer trophic groups at higher plant species richness, with effect sizes decreasing with increasing trophic distance from the plant level, being strongest for herbivores. ...
... between consumer richness and plant species richness. Scherber et al. [6] found higher species richness and abundances of all consumer trophic groups at higher plant species richness, with effect sizes decreasing with increasing trophic distance from the plant level, being strongest for herbivores. ...
Ecological Inventory Manual - Legacy | The Landscape Connection
... species) and learn more about the biological community in which one lives. Much can be gained by validating the presence of species that indicate intact and functioning ecosystems, but so much more can be learned by conducting the surveys and learning about the other 99% of the species that will be ...
... species) and learn more about the biological community in which one lives. Much can be gained by validating the presence of species that indicate intact and functioning ecosystems, but so much more can be learned by conducting the surveys and learning about the other 99% of the species that will be ...
Volume 16 No. 1 - International Reptile Conservation Foundation
... agricultural boom in the late 1920s, during which large tracts of natural vegetation were cleared to plant oil palms and rubber trees. Suspiciously, this agricultural expansion occurred at the same time that L. triploida began appearing in museums, and it encompassed the same localities from which L ...
... agricultural boom in the late 1920s, during which large tracts of natural vegetation were cleared to plant oil palms and rubber trees. Suspiciously, this agricultural expansion occurred at the same time that L. triploida began appearing in museums, and it encompassed the same localities from which L ...
Consumers Control Diversity and Functioning of a Natural Marine
... photosynthesis rates of Ulva relative to other species in the laboratory under saturating flow conditions [33], the lower productivity we observed in Ulva-dominated tide pools is consistent with Ulva’s interactions in the field. Ulva uses bicarbonate as a carbon source, which can elevate tide pool p ...
... photosynthesis rates of Ulva relative to other species in the laboratory under saturating flow conditions [33], the lower productivity we observed in Ulva-dominated tide pools is consistent with Ulva’s interactions in the field. Ulva uses bicarbonate as a carbon source, which can elevate tide pool p ...
revised Sept 2015 - The Deer Initiative
... Each species has it’s own characteristic appearance, some have unique features that are visible even in the very young. Size, body shape, detailed colouration and antler shape are useful clues, as are finer details such as facial characteristics and the appearance of the tail area. Aspects of behavi ...
... Each species has it’s own characteristic appearance, some have unique features that are visible even in the very young. Size, body shape, detailed colouration and antler shape are useful clues, as are finer details such as facial characteristics and the appearance of the tail area. Aspects of behavi ...
- Wiley Online Library
... intriguing and somewhat contradictory. They suggest that L. salicaria may operate as a “magnet species,” and the net impact of this invader through pollinator behavior could be positive or negative, depending on context. The nature of L. salicaria impacts for any particular habitat, therefore, is a ...
... intriguing and somewhat contradictory. They suggest that L. salicaria may operate as a “magnet species,” and the net impact of this invader through pollinator behavior could be positive or negative, depending on context. The nature of L. salicaria impacts for any particular habitat, therefore, is a ...
Chapter 1. Threats to freshwater biodiversity globally and in
... and the proportion increases to 65% if species classified as ‘Data Deficient’ (DD: species for which there are insufficient data to allow an accurate assessment of their conservation status; such species may be either threatened or not) are also assumed to be threatened (IUCN 2010). Similarly, the r ...
... and the proportion increases to 65% if species classified as ‘Data Deficient’ (DD: species for which there are insufficient data to allow an accurate assessment of their conservation status; such species may be either threatened or not) are also assumed to be threatened (IUCN 2010). Similarly, the r ...
Ecology of a sympatric pair of coregonid fish: Species interactions
... evolution and coexistence of closely related sympatric species. Sympatric fish in postglacial lakes frequently display resource polymorphism and segregate available niches. In the dimictic Lake Stechlin (north Germany) two coregonid fish coexist; vendace (Coregonus albula) and the dwarf-sized lake-e ...
... evolution and coexistence of closely related sympatric species. Sympatric fish in postglacial lakes frequently display resource polymorphism and segregate available niches. In the dimictic Lake Stechlin (north Germany) two coregonid fish coexist; vendace (Coregonus albula) and the dwarf-sized lake-e ...
biodiversity in the high parana river floodplain
... abundancein associationwith low flood years.We demonstratehow the integrity of the river-floodplain ecosystemof the high Paranais dependenton the maintenanceof some degreeof annual flooding. Severalconservationareashavebeen establishedto protect the biological diversity supported by the floodplain r ...
... abundancein associationwith low flood years.We demonstratehow the integrity of the river-floodplain ecosystemof the high Paranais dependenton the maintenanceof some degreeof annual flooding. Severalconservationareashavebeen establishedto protect the biological diversity supported by the floodplain r ...
Deterministic and stochastic forces in community ecology:
... Interspecific competition in our model is determined by species’ abilities to compete for two essential resources. Resource-ratio theory predicts that the outcome of competition between two individuals depends on their R* values for each resource (the lowest level of that resource for which they are ...
... Interspecific competition in our model is determined by species’ abilities to compete for two essential resources. Resource-ratio theory predicts that the outcome of competition between two individuals depends on their R* values for each resource (the lowest level of that resource for which they are ...
La biodiversité, c`est la vie - doc-developpement
... Living species ("Life") would have appeared on Earth, there are 3.6 billion years, all from originally single-celled species (bacteria or virus?). • There are between 5 and 30 million species on Earth. [11] But only 1.5 to 1.8 million plant and animal species have been described / listed scientifica ...
... Living species ("Life") would have appeared on Earth, there are 3.6 billion years, all from originally single-celled species (bacteria or virus?). • There are between 5 and 30 million species on Earth. [11] But only 1.5 to 1.8 million plant and animal species have been described / listed scientifica ...
Ecological Modelling Mathematical model of livestock and
... the higher place in the competitive hierarchy. Similar asymmetries are known to allow coexistence, provided that the species that should disappear has some edge over the other at some skill, such as mobility (Kuperman et al., 1996) or colonization ability (Tilman et al., 1994). Sheep, being the infe ...
... the higher place in the competitive hierarchy. Similar asymmetries are known to allow coexistence, provided that the species that should disappear has some edge over the other at some skill, such as mobility (Kuperman et al., 1996) or colonization ability (Tilman et al., 1994). Sheep, being the infe ...
Introduction Poaceae (R.Br.) Barnh. is the fourth
... have provided grass systematists of the world the much needed forum for guidance and ...
... have provided grass systematists of the world the much needed forum for guidance and ...
Supporting Materials
... peaks in the SST range associated with the presence of strong western boundary currents) than directly to ocean area (Fig. S3B). In this context, we argue that the total phytoplankton diversity at a given latitude is more closely related to the range of habitats than to total ocean area. Note here t ...
... peaks in the SST range associated with the presence of strong western boundary currents) than directly to ocean area (Fig. S3B). In this context, we argue that the total phytoplankton diversity at a given latitude is more closely related to the range of habitats than to total ocean area. Note here t ...
Online Resource Title: Supporting conservation with biodiversity
... nest densities nest densities highest in conservation areas, less on cattle ranches, and negligible on gov't ranches abundance, mixed results for different trials and richness, groups; increaser and decreaser composition species identified abundance of seedling emergence, growth, and seeds and survi ...
... nest densities nest densities highest in conservation areas, less on cattle ranches, and negligible on gov't ranches abundance, mixed results for different trials and richness, groups; increaser and decreaser composition species identified abundance of seedling emergence, growth, and seeds and survi ...
Using the focal species approach for conserving biodiversity in
... Some authors (Landres et al. 1988) suggested that large species make better indicators because they have slower turnover and are more stable and their population changes are directly related to environmental change (as opposed to over and undershooting carrying capacity like some r-selected species ...
... Some authors (Landres et al. 1988) suggested that large species make better indicators because they have slower turnover and are more stable and their population changes are directly related to environmental change (as opposed to over and undershooting carrying capacity like some r-selected species ...
STRUCTURE OF ANT ASSEMBLAGES IN A MIDDLE
... Spearman's rank correlation. The contribution of single habitat properties to the axes of the PCA ordination factor space of ant assemblages was studied by simple correlation analysis. Distribution and co-occurrence data are not always reliable for the detection of interspecific competition. Both Al ...
... Spearman's rank correlation. The contribution of single habitat properties to the axes of the PCA ordination factor space of ant assemblages was studied by simple correlation analysis. Distribution and co-occurrence data are not always reliable for the detection of interspecific competition. Both Al ...
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.