Confessions of a Gall Hunter by Ron Russo
... he exact mechanisms that lead to species-specific galls remain unknown. As some have suggested, that may be the Holy Grail of entomology. How are the blue oak’s leaf cells, for example, being manipulated by the secretions of A. quercusechinus to consistently result in galls of the same size, shape, ...
... he exact mechanisms that lead to species-specific galls remain unknown. As some have suggested, that may be the Holy Grail of entomology. How are the blue oak’s leaf cells, for example, being manipulated by the secretions of A. quercusechinus to consistently result in galls of the same size, shape, ...
Niche filtering, not interspecific resource competition
... the same family; and 0: in different families. The total dispersal ability was calculated ...
... the same family; and 0: in different families. The total dispersal ability was calculated ...
Viola, D., E. Mordecai, A. Jaramillo, S. Sistla, L
... Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106 ...
... Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106 ...
Notes on Fauna near Beachcomber
... limit of their distribution, those that have a very restricted range and those that occur in breeding colonies, such as some waterbirds, can be considered of conservation significance, although this level of significance has no legislative or published recognition and is based on interpretation of d ...
... limit of their distribution, those that have a very restricted range and those that occur in breeding colonies, such as some waterbirds, can be considered of conservation significance, although this level of significance has no legislative or published recognition and is based on interpretation of d ...
Continental Drift and Speciation of the Cryptococcus neoformans
... rapidly accumulating genomic information and concerns about nomenclature instability, it was recently proposed that species complex nomenclature be used such that the broad taxa C. neoformans and C. gattii will be referred to as the C. neoformans species complex and the C. gattii species complex (3) ...
... rapidly accumulating genomic information and concerns about nomenclature instability, it was recently proposed that species complex nomenclature be used such that the broad taxa C. neoformans and C. gattii will be referred to as the C. neoformans species complex and the C. gattii species complex (3) ...
Continental Drift and Speciation of the Cryptococcus
... rapidly accumulating genomic information and concerns about nomenclature instability, it was recently proposed that species complex nomenclature be used such that the broad taxa C. neoformans and C. gattii will be referred to as the C. neoformans species complex and the C. gattii species complex (3) ...
... rapidly accumulating genomic information and concerns about nomenclature instability, it was recently proposed that species complex nomenclature be used such that the broad taxa C. neoformans and C. gattii will be referred to as the C. neoformans species complex and the C. gattii species complex (3) ...
Functional diversity responses to changing species richness in reef
... Although sampling effort was not equal at all locations, a sampling bias is unlikely as our patterns of species richness match those for other taxa such as corals (Veron 1995) and muricid gastropods (Vermeij 1996), and several of the least studied locations (e.g. Western Africa) have some of the hig ...
... Although sampling effort was not equal at all locations, a sampling bias is unlikely as our patterns of species richness match those for other taxa such as corals (Veron 1995) and muricid gastropods (Vermeij 1996), and several of the least studied locations (e.g. Western Africa) have some of the hig ...
Response of macroarthropod assemblages to the loss
... As hemlock is lost from forests due to the invasive hemlock woolly adelgid (Adelges tsugae) and preemptive salvage logging, the structure of assemblages of species associated with hemlock is expected to change. We manipulated hemlock canopy structure at hectare scales to investigate the effects of h ...
... As hemlock is lost from forests due to the invasive hemlock woolly adelgid (Adelges tsugae) and preemptive salvage logging, the structure of assemblages of species associated with hemlock is expected to change. We manipulated hemlock canopy structure at hectare scales to investigate the effects of h ...
Scorpiones (Scorpions) - American Museum of Natural History
... heavier, including Opistophthalmus gigas, 6.3 in (16 cm); Heterometrus swammerdami, 6.6 in (16.8 cm); and Pandinus imperator, 7.1 to 7.9 in (18 to 20 cm). Although these scorpions are the world’s largest living arachnids, some fossil species were an order of magnitude larger. For example, Brontoscor ...
... heavier, including Opistophthalmus gigas, 6.3 in (16 cm); Heterometrus swammerdami, 6.6 in (16.8 cm); and Pandinus imperator, 7.1 to 7.9 in (18 to 20 cm). Although these scorpions are the world’s largest living arachnids, some fossil species were an order of magnitude larger. For example, Brontoscor ...
Species diversity patterns derived from species
... of species diversity. Furthermore, ecologists have found that species richness in an area greatly depends on the distributional patterns of species (Williams 1943, Janzen 1970, Connell 1971, Crawley 1997, NeyNifle and Mangel 1999); little generality has been achieved along this line, however. As a h ...
... of species diversity. Furthermore, ecologists have found that species richness in an area greatly depends on the distributional patterns of species (Williams 1943, Janzen 1970, Connell 1971, Crawley 1997, NeyNifle and Mangel 1999); little generality has been achieved along this line, however. As a h ...
Biodiversity, productivity and the temporal stability of
... Biodiversity–ecosystem functioning studies in which species diversity was experimentally varied can identify the pattern between biodiversity and several types of stability. For example, temporal stability increased with species richness in two grassland biodiversity–ecosystem functioning studies (T ...
... Biodiversity–ecosystem functioning studies in which species diversity was experimentally varied can identify the pattern between biodiversity and several types of stability. For example, temporal stability increased with species richness in two grassland biodiversity–ecosystem functioning studies (T ...
Using standardized sampling designs from population ecology to
... Traditional comparisons across these levels often use data from different studies that show a large methodological variation, e.g. in subjective vs. random plot selection (Mawdsley, 1996; Srivastava, 1999). By using population ecological sampling designs such methodological variation can be reduced ...
... Traditional comparisons across these levels often use data from different studies that show a large methodological variation, e.g. in subjective vs. random plot selection (Mawdsley, 1996; Srivastava, 1999). By using population ecological sampling designs such methodological variation can be reduced ...
Plant Attribute Diversity, Resilience, and Ecosystem Function: The
... Most diversity–function studies have related, in one way or another, number of species to ecosystem biomass or production. Some [for example, McNaughton (1985) and Tilman (1996)] have shown that year-to-year variation in species abundance tends to stabilize community biomass, and a few [Vitousek and ...
... Most diversity–function studies have related, in one way or another, number of species to ecosystem biomass or production. Some [for example, McNaughton (1985) and Tilman (1996)] have shown that year-to-year variation in species abundance tends to stabilize community biomass, and a few [Vitousek and ...
Extent and ecological consequences of hunting in
... activity is predominantly illegal and therefore concealed. However, ecological transect surveys often record hunting signs such as snares, gun cartridges and hunting paths, which suggests that hunters are penetrating up to 40 km into the forest from the nearest access point such as roads and rivers ...
... activity is predominantly illegal and therefore concealed. However, ecological transect surveys often record hunting signs such as snares, gun cartridges and hunting paths, which suggests that hunters are penetrating up to 40 km into the forest from the nearest access point such as roads and rivers ...
Waterbird Monitoring of Lakes Alexandrina and Albert
... This report summarises the counts of waterbirds for the Lower Lakes region of the LLCMM Icon site that were undertaken in January 2012, the fourth year of monitoring. Over the four years of monitoring the water levels in the Lower Lakes have changed dramatically, from the unprecedented levels in 200 ...
... This report summarises the counts of waterbirds for the Lower Lakes region of the LLCMM Icon site that were undertaken in January 2012, the fourth year of monitoring. Over the four years of monitoring the water levels in the Lower Lakes have changed dramatically, from the unprecedented levels in 200 ...
Comparative recruitment patterns of two non-pioneer
... seeds (n = 25) dehydrated (P.-M. Forget unpubl, data). Terrestrial rodents are also seed predators of both species. There is no evidence that Virola seeds are infested by insect larvae as in Virola surinamensis in Panama (Howe et al. 1985), and despite high seed-predation by animals, especially rode ...
... seeds (n = 25) dehydrated (P.-M. Forget unpubl, data). Terrestrial rodents are also seed predators of both species. There is no evidence that Virola seeds are infested by insect larvae as in Virola surinamensis in Panama (Howe et al. 1985), and despite high seed-predation by animals, especially rode ...
Relative importance of endogenous and exogenous mechanisms in
... thus hoped to maximize the likelihood of detecting storage effects expressed as a result of fluctuating nutrient availability. Each community composition by disturbance treatment cross was replicated twice. We sampled 15 mL of each experimental microcosm after shaking at low speed for 1 min. We did ...
... thus hoped to maximize the likelihood of detecting storage effects expressed as a result of fluctuating nutrient availability. Each community composition by disturbance treatment cross was replicated twice. We sampled 15 mL of each experimental microcosm after shaking at low speed for 1 min. We did ...
Chapter 3: Maryland`s Wildlife Resources and Species of Greatest
... Species with fragmented or isolated populations Species of special, or conservation, concern Focal species (keystone species, wide-ranging species, species with specific needs) Indicator species “Responsibility” species (i.e. species that have their center of range within a state) Species that aggre ...
... Species with fragmented or isolated populations Species of special, or conservation, concern Focal species (keystone species, wide-ranging species, species with specific needs) Indicator species “Responsibility” species (i.e. species that have their center of range within a state) Species that aggre ...
Animal species diversity driven by habitat heterogeneity
... Thereof, 19% focused on arachnids, 19% on butterflies, 14% on beetles and 36% on other insects. It is most likely the unease of species counting that prevented hyperdiverse taxonomic groups from being more frequently studied. Some recently evaluated estimation methods (Colwell & Coddington, 1994; Br ...
... Thereof, 19% focused on arachnids, 19% on butterflies, 14% on beetles and 36% on other insects. It is most likely the unease of species counting that prevented hyperdiverse taxonomic groups from being more frequently studied. Some recently evaluated estimation methods (Colwell & Coddington, 1994; Br ...
Ecological niches occupied by in South African rangeland communities Dichapetalum cymosum
... investigate competition among species, and above ground flowering phenology along niche axes to determine temporal and spatial sharing of resources. The dispersal analysis revealed aggregated populations among species when intraspecific and combined (all individuals independent of species) analyses ...
... investigate competition among species, and above ground flowering phenology along niche axes to determine temporal and spatial sharing of resources. The dispersal analysis revealed aggregated populations among species when intraspecific and combined (all individuals independent of species) analyses ...
Ball python Python regius (Shaw 1802)
... Red List of Threatened Species (Auliya & Schmitz 2010). However, the status of the species differs within each range country, with some indications that the species is declining in Benin. Farmers and ball python collectors unanimously report that the species is under severe threat in Benin, and expl ...
... Red List of Threatened Species (Auliya & Schmitz 2010). However, the status of the species differs within each range country, with some indications that the species is declining in Benin. Farmers and ball python collectors unanimously report that the species is under severe threat in Benin, and expl ...
Spiders In Africa
... regions and wetlands, in lowlands and mountains, in cold tundra and in hot equatorial regions. Spiders are all predators. Their preys range from microscopic mites to vertebrates the size of small birds. They are mostly terrestrial but include one aquatic species and a few inhabitants of tidal zones, ...
... regions and wetlands, in lowlands and mountains, in cold tundra and in hot equatorial regions. Spiders are all predators. Their preys range from microscopic mites to vertebrates the size of small birds. They are mostly terrestrial but include one aquatic species and a few inhabitants of tidal zones, ...
Cypriniformes of Borneo (Actinopterygii, Otophysi)
... At a broader scale and in comparative analyses, Nelson (2006) estimated the number of freshwater fish species to be about 10,000 worldwide, 430 of which are from Borneo. Of this diversity more that 160 (37%) of the species are endemic (McGinley & Hogan 2008). However, other published literature repo ...
... At a broader scale and in comparative analyses, Nelson (2006) estimated the number of freshwater fish species to be about 10,000 worldwide, 430 of which are from Borneo. Of this diversity more that 160 (37%) of the species are endemic (McGinley & Hogan 2008). However, other published literature repo ...
Response of macroarthropod assemblages to the loss
... As hemlock is lost from forests due to the invasive hemlock woolly adelgid (Adelges tsugae) and preemptive salvage logging, the structure of assemblages of species associated with hemlock is expected to change. We manipulated hemlock canopy structure at hectare scales to investigate the effects of h ...
... As hemlock is lost from forests due to the invasive hemlock woolly adelgid (Adelges tsugae) and preemptive salvage logging, the structure of assemblages of species associated with hemlock is expected to change. We manipulated hemlock canopy structure at hectare scales to investigate the effects of h ...
Fauna of Africa
Fauna of Africa, in its broader sense, is all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna is found in the Afrotropical ecoregion. Lying almost entirely within the tropics, and equally to north and south of the equator creates favourable conditions for rich wildlife.