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How does forest landscape structure explain tree species richness
... plant species (Huston 1994). Different hypothesis have been proposed to explain latitudinal gradients of richness (reviewed in Willig et al. 2003; Huston 1994); in particular, correlations between global patterns in species richness and climate are widely known, and climatic factors as predictors of ...
... plant species (Huston 1994). Different hypothesis have been proposed to explain latitudinal gradients of richness (reviewed in Willig et al. 2003; Huston 1994); in particular, correlations between global patterns in species richness and climate are widely known, and climatic factors as predictors of ...
state of Britain's mammals a focus on invasive species
... have devoted ever more of our efforts and funds to work here in the UK, in particular on our beleaguered mammal species. We no longer have the megafauna that draws people to Africa and Asia, and as an island the diversity of our animals is substantially less than on the continent. This is why it’s e ...
... have devoted ever more of our efforts and funds to work here in the UK, in particular on our beleaguered mammal species. We no longer have the megafauna that draws people to Africa and Asia, and as an island the diversity of our animals is substantially less than on the continent. This is why it’s e ...
Species Richness and the Temporal Stability of Biomass Production
... Our analysis of these experiments is motivated by several questions that have yet to be resolved by any experiments individually or by data syntheses conducted to date. First, how can the effect of species richness on wholecommunity biomass production be “unpacked” into diversity’s simultaneous effe ...
... Our analysis of these experiments is motivated by several questions that have yet to be resolved by any experiments individually or by data syntheses conducted to date. First, how can the effect of species richness on wholecommunity biomass production be “unpacked” into diversity’s simultaneous effe ...
SPECIES DIVERSITY
... unless a great deal of information is available on the spatial organization of the assemblage, Equation 2.1 should be used. 3. The samples to be compared are taxonomically "similar" and are drawn from the "same" community type. For example, two collections of lepidoptera might exhibit similar rarefa ...
... unless a great deal of information is available on the spatial organization of the assemblage, Equation 2.1 should be used. 3. The samples to be compared are taxonomically "similar" and are drawn from the "same" community type. For example, two collections of lepidoptera might exhibit similar rarefa ...
Speciation in the dark: diversification and biogeography of the
... 1. Taxonomic impediment. Many deep-sea species with broad geographical ranges have been identified based on similarities of their external morphology only (e.g. Allen & Sanders, 1996; Allen, 2008; Miljutin et al., 2010; Menzel et al., 2011), and there is growing recognition of cryptic speciation in ...
... 1. Taxonomic impediment. Many deep-sea species with broad geographical ranges have been identified based on similarities of their external morphology only (e.g. Allen & Sanders, 1996; Allen, 2008; Miljutin et al., 2010; Menzel et al., 2011), and there is growing recognition of cryptic speciation in ...
Gillman and Wright 2006 - Reed F. Noss Lab at the University of
... end came from the southeastern United States. There are three reasons for low diversity in the southeastern U.S. data that are unrelated to productivity: (1) The North American continent is smaller than Eurasia, and North America is likely to be influenced by the diversity–area effect; (2) richness i ...
... end came from the southeastern United States. There are three reasons for low diversity in the southeastern U.S. data that are unrelated to productivity: (1) The North American continent is smaller than Eurasia, and North America is likely to be influenced by the diversity–area effect; (2) richness i ...
Progress in Physical Geography
... reach almost 500 (Valencia et al., 1994). By comparison, temperate deciduous broadleaved forest attains only 25–30 tree species per hectare, at best (Richards, 1996). Tropical rain forests have been revered as the most species-rich biome on Earth, harbouring over 50% of species on just 7% of the lan ...
... reach almost 500 (Valencia et al., 1994). By comparison, temperate deciduous broadleaved forest attains only 25–30 tree species per hectare, at best (Richards, 1996). Tropical rain forests have been revered as the most species-rich biome on Earth, harbouring over 50% of species on just 7% of the lan ...
Draft MSAP Benguela Seabirds - Annexes 1 and 2 only
... Lack of preferred prey species, and consequent reliance by some species/populations on lowerquality prey, is one of the main factors behind low breeding success of the African Penguin, Cape Gannet and Cape and Bank Cormorants (Lewis et al. 2006; Roy et al., 2007; Coetzee et al., 2008; Gremillet et a ...
... Lack of preferred prey species, and consequent reliance by some species/populations on lowerquality prey, is one of the main factors behind low breeding success of the African Penguin, Cape Gannet and Cape and Bank Cormorants (Lewis et al. 2006; Roy et al., 2007; Coetzee et al., 2008; Gremillet et a ...
Tradeoffs, competition, and coexistence in eastern deciduous forest
... species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of baits expected to be discovered by a given species was calcu ...
... species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of baits expected to be discovered by a given species was calcu ...
Introduction
... used partial correlations to analyze pairwise associations of the four commonest species, and a null model analysis to quantify niche overlap among all seven species present. On a seasonal (monthly) time scale, niche overlap and pairwise species associations were random or aggregated, probably due t ...
... used partial correlations to analyze pairwise associations of the four commonest species, and a null model analysis to quantify niche overlap among all seven species present. On a seasonal (monthly) time scale, niche overlap and pairwise species associations were random or aggregated, probably due t ...
Korapuki Island restoration plan
... differences between Middle and Korapuki Is are likely to influence the final form of each system. Differences in vegetation composition may also result from variable effects of keystone species such as kereru. Following removal of rats and rabbits, many plant species have recolonised, and there were ...
... differences between Middle and Korapuki Is are likely to influence the final form of each system. Differences in vegetation composition may also result from variable effects of keystone species such as kereru. Following removal of rats and rabbits, many plant species have recolonised, and there were ...
preliminary ecological survey for the proposed luiperdshoek
... and inselbergs. Satellite imagery of the area was obtained from Google Earth was studied in order to get a three dimensional impression of the topography and land use. ...
... and inselbergs. Satellite imagery of the area was obtained from Google Earth was studied in order to get a three dimensional impression of the topography and land use. ...
Leptocerus interruptus - Acta Zoologica Bulgarica
... Department of Zoology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland; E-mail: [email protected] ...
... Department of Zoology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland; E-mail: [email protected] ...
Ant diversity in an Amazonian savanna: Relationship - PPBio
... factors that influence the structure and dynamics of these assemblages. In 1998 and 2002, we surveyed the ground-dwelling ant fauna and the fauna associated with the woody vegetation (using baits and direct sampling) from an Amazonian savanna. The aim was to evaluate the influence of vegetation stru ...
... factors that influence the structure and dynamics of these assemblages. In 1998 and 2002, we surveyed the ground-dwelling ant fauna and the fauna associated with the woody vegetation (using baits and direct sampling) from an Amazonian savanna. The aim was to evaluate the influence of vegetation stru ...
ecological differentiation between sympatric pseudocryptic species
... The ITS of 11 strains (accession numbers of these strains in Table 1 are not in bold) was cloned and sequenced earlier (Créach et al. 2006). The PCR products of the ITS were cloned in PCR II-TOPO vector TA cloning kit (Invitrogen, Breda, the Netherlands) according to the manufacturer’s instructions ...
... The ITS of 11 strains (accession numbers of these strains in Table 1 are not in bold) was cloned and sequenced earlier (Créach et al. 2006). The PCR products of the ITS were cloned in PCR II-TOPO vector TA cloning kit (Invitrogen, Breda, the Netherlands) according to the manufacturer’s instructions ...
Latitudinal patterns and environmental determinants of
... empires in Europe and Asia has resulted in a fusion and absorption of cultural units. Some may have persisted historically for longer than others. However, the effect of these would be to reduce the visibility of any older ecological patterns (although they themselves may be following biogeographica ...
... empires in Europe and Asia has resulted in a fusion and absorption of cultural units. Some may have persisted historically for longer than others. However, the effect of these would be to reduce the visibility of any older ecological patterns (although they themselves may be following biogeographica ...
Nevada Wildlife Action Plan - Nevada Department of Wildlife
... caves, trees, bridges, and other man-made structures. The numbers of species found in Nevada represent almost half of all the species found in the U.S. While historic numbers and distribution of bats are not known, it is certain that many of our species are patchy in distribution and have declined o ...
... caves, trees, bridges, and other man-made structures. The numbers of species found in Nevada represent almost half of all the species found in the U.S. While historic numbers and distribution of bats are not known, it is certain that many of our species are patchy in distribution and have declined o ...
Effects of habitat area, isolation, and landscape diversity
... Habitat area (0.03 – 5.14 ha, average: 0.90 0.23 ha) was not correlated with habitat isolation (index: 2051 – 85 978, average: 23 019 3368) (r ¼ 0.013, P ¼ 0.944). Also landscape diversity (at a 250 m scale; Shannon–Wiener: 0.09– 1.56, average: 1.09 0.05) was not correlated with habitat isola ...
... Habitat area (0.03 – 5.14 ha, average: 0.90 0.23 ha) was not correlated with habitat isolation (index: 2051 – 85 978, average: 23 019 3368) (r ¼ 0.013, P ¼ 0.944). Also landscape diversity (at a 250 m scale; Shannon–Wiener: 0.09– 1.56, average: 1.09 0.05) was not correlated with habitat isola ...
Seed arrival, ecological filters, and plant species richness: a meta
... interact to structure local biodiversity. To date, experimental tests of the role of propagule supply in natural communities have largely focused on terrestrial plants, with a concurrent growing number of experiments in animal and microbial communities (e.g., Cadotte 2006; Lee & Bruno 2009). In plan ...
... interact to structure local biodiversity. To date, experimental tests of the role of propagule supply in natural communities have largely focused on terrestrial plants, with a concurrent growing number of experiments in animal and microbial communities (e.g., Cadotte 2006; Lee & Bruno 2009). In plan ...
Get PDF - Asian Myrmecology
... ABSTRACT. In tropical rainforests, variability in the distribution of soil and litter arthropods is usually explained at regional scales by altitude, soil nutrients, and disturbance regimes. However, the influence of these factors on insect assemblages at the micro-habitat scale has rarely been stud ...
... ABSTRACT. In tropical rainforests, variability in the distribution of soil and litter arthropods is usually explained at regional scales by altitude, soil nutrients, and disturbance regimes. However, the influence of these factors on insect assemblages at the micro-habitat scale has rarely been stud ...
HOMOGENIZATION OF FRESHWATER FAUNAS Frank J. Rahel
... pool to a subset of species that have had the opportunity to colonize the habitat, are physiologically adapted to the abiotic conditions, and have the ecological characteristics needed to interact successfully with the other species present. In such a model of community assembly, the first filter is ...
... pool to a subset of species that have had the opportunity to colonize the habitat, are physiologically adapted to the abiotic conditions, and have the ecological characteristics needed to interact successfully with the other species present. In such a model of community assembly, the first filter is ...
Historical and ecological dimensions of global patterns
... as regulating the number of species in local ecological communities. The expression of these interactions in patterns of species richness would require that ecological limits to local coexistence depend on the physical environment. Advocates of local and regional processes have been unable to reconc ...
... as regulating the number of species in local ecological communities. The expression of these interactions in patterns of species richness would require that ecological limits to local coexistence depend on the physical environment. Advocates of local and regional processes have been unable to reconc ...
read here - H. Christoph Liedtke
... missing COI sequences). Although only 60 of the 101 currently recognized species are covered, all African genera are represented in this tree, with the exception of Laurentophryne, a monotypic genus from eastern Democratic Republic of the Congo that has not been sighted since its original collection ...
... missing COI sequences). Although only 60 of the 101 currently recognized species are covered, all African genera are represented in this tree, with the exception of Laurentophryne, a monotypic genus from eastern Democratic Republic of the Congo that has not been sighted since its original collection ...
B. Current Taxonomic Status History: How many manzanita species
... (1891) described much of San Francisco as having chaparral dominating most of the hilltops and ridgetops in San Francisco, principally by Ceanothus thyrsiflorus (blue blossom), but also with large numbers of manzanitas (Arctostaphylos species). Eastwood (1905) was the first to describe a San Francis ...
... (1891) described much of San Francisco as having chaparral dominating most of the hilltops and ridgetops in San Francisco, principally by Ceanothus thyrsiflorus (blue blossom), but also with large numbers of manzanitas (Arctostaphylos species). Eastwood (1905) was the first to describe a San Francis ...
Fauna of Africa
![](https://commons.wikimedia.org/wiki/Special:FilePath/Hyenas_at_stolen_impala_kill.jpg?width=300)
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.