Ecology and conservation of avian insectivores
... occur in tropical forests, and because vulnerability is strongly predicted by ecological specialization (S ß ekercioğlu, 2011), it is not surprising that one of the most at-risk groups is understory insectivores (Tobias et al., 2013). Studies on the effects of forest fragmentation on tropical under ...
... occur in tropical forests, and because vulnerability is strongly predicted by ecological specialization (S ß ekercioğlu, 2011), it is not surprising that one of the most at-risk groups is understory insectivores (Tobias et al., 2013). Studies on the effects of forest fragmentation on tropical under ...
Speciesspecific responses of foliar nutrients to longterm nitrogen
... foliar N/P ratios (Tessier & Raynal 2003; Elser et al. 2010; Ostertag 2010). Foliar N/P ratios might also be driven more by variation in P availability, irrespective of N availability, because plants store N mainly as structural amino acids and proteins (Chapin, Schulze & Mooney 1990), whereas P is ...
... foliar N/P ratios (Tessier & Raynal 2003; Elser et al. 2010; Ostertag 2010). Foliar N/P ratios might also be driven more by variation in P availability, irrespective of N availability, because plants store N mainly as structural amino acids and proteins (Chapin, Schulze & Mooney 1990), whereas P is ...
Environmental Issues
... an average of 15 years to go from the ground level up to the upper atmosphere, and it can stay there for about a century, destroying up to 100,000 ozone molecules during that time. ...
... an average of 15 years to go from the ground level up to the upper atmosphere, and it can stay there for about a century, destroying up to 100,000 ozone molecules during that time. ...
Do we have a consistent terminology for species diversity?
... than expected and positive when observed is greater than expected, but this arises because Shannon’s index P H ¼ x logð xÞ was only designed for 0 x 1 (Boltzmann 1872; Shannon 1948), not for 0 x\1. An added benefit of using weighted means of observed-overexpected is that the weightings can ...
... than expected and positive when observed is greater than expected, but this arises because Shannon’s index P H ¼ x logð xÞ was only designed for 0 x 1 (Boltzmann 1872; Shannon 1948), not for 0 x\1. An added benefit of using weighted means of observed-overexpected is that the weightings can ...
Test for Measuring the Knowledge in Biodiversity of Secondary
... 2. Rationale for the Selection of the Variable Conservation of Biodiversity is essential for human existence as they offer a variety of products and services to mankind. Humans depend on the Biodiversity for food, clothing, shelter, health care, entertainment, etc. Many species are on the verge of e ...
... 2. Rationale for the Selection of the Variable Conservation of Biodiversity is essential for human existence as they offer a variety of products and services to mankind. Humans depend on the Biodiversity for food, clothing, shelter, health care, entertainment, etc. Many species are on the verge of e ...
Age-related mortality explains life history strategies of tropical and
... abilities (10, 11). Yet the life history traits of coexisting tropical songbird species can vary as much or even more (5, 14) than those of temperate species, and this variation is difficult to explain by the simple argument that competition is greater in the tropics. Other hypotheses invoking latit ...
... abilities (10, 11). Yet the life history traits of coexisting tropical songbird species can vary as much or even more (5, 14) than those of temperate species, and this variation is difficult to explain by the simple argument that competition is greater in the tropics. Other hypotheses invoking latit ...
Review of Australia`s Biodiversity Conservation Strategy
... In terms of “getting measurable results”, it is considered that emphasis on “delivering conservation initiatives efficiently” could include statements around the need for cooperation between state and federal agencies to streamline processes relating to the management of flora and fauna where appro ...
... In terms of “getting measurable results”, it is considered that emphasis on “delivering conservation initiatives efficiently” could include statements around the need for cooperation between state and federal agencies to streamline processes relating to the management of flora and fauna where appro ...
Tree species Diversity and Regeneration of Tropical Dry Forests in
... ratio of potential evapotranspiration to precipitation is greater than one, to a maximum value of two. By these criteria, 49% of the vegetation of Central America (an area extending from Guatemala to Panama) and the Caribbean (an area extending from Cuba to Grenada) is considered as dry forest (Murp ...
... ratio of potential evapotranspiration to precipitation is greater than one, to a maximum value of two. By these criteria, 49% of the vegetation of Central America (an area extending from Guatemala to Panama) and the Caribbean (an area extending from Cuba to Grenada) is considered as dry forest (Murp ...
Dataset of Global Change, altitudinal range shift and colonization of
... mediterranean mountains (MIGRAME) Personnel: Regino Jesús Zamora Rodríguez Funding: The project MIGRAME (RNM-6734) was funded by the Excellence Research Group Programme of the Andalusian Government. Study area descriptions/descriptor: The target ecosystem of the project is the Pyrenean oak forests ( ...
... mediterranean mountains (MIGRAME) Personnel: Regino Jesús Zamora Rodríguez Funding: The project MIGRAME (RNM-6734) was funded by the Excellence Research Group Programme of the Andalusian Government. Study area descriptions/descriptor: The target ecosystem of the project is the Pyrenean oak forests ( ...
Threats and biodiversity in the mediterranean biome
... biodiversity: e.g. population density and growth of urban areas (Rouget et al., 2003a; Schwartz et al., 2006), conversion to agriculture (le Houérou, 1981; Hobbs, 1998) and conversion of natural areas for tourism-related development (Grenon & Batisse, 1989; Paskoff & Manriquez, 1999). However, the m ...
... biodiversity: e.g. population density and growth of urban areas (Rouget et al., 2003a; Schwartz et al., 2006), conversion to agriculture (le Houérou, 1981; Hobbs, 1998) and conversion of natural areas for tourism-related development (Grenon & Batisse, 1989; Paskoff & Manriquez, 1999). However, the m ...
Species mtDNA genetic diversity explained by infrapopulation size
... genetic diversity (see Simulation details). Therefore, we created 100 new data sets, each having a genetic diversity estimate (p) for each mite species that was calculated by randomly sampling a single mite individual from each individual bird (see Data, Table S1 Supporting information). We used the ...
... genetic diversity (see Simulation details). Therefore, we created 100 new data sets, each having a genetic diversity estimate (p) for each mite species that was calculated by randomly sampling a single mite individual from each individual bird (see Data, Table S1 Supporting information). We used the ...
Tree species composition and diversity gradients in white
... species richness in the várzea is expected to be lower than in terra firme forests, and many species occur in high abundance, and (2) most várzea species can be found in the herbaria mentioned above, mostly with good taxonomic descriptions. To avoid unequal individual and species numbers per plot, ...
... species richness in the várzea is expected to be lower than in terra firme forests, and many species occur in high abundance, and (2) most várzea species can be found in the herbaria mentioned above, mostly with good taxonomic descriptions. To avoid unequal individual and species numbers per plot, ...
Comparative recruitment patterns of two non-pioneer
... 1980, 1987; Coley 1983, 1988; Augspurger 1984; Oberbauer and Donnelly 1986). While Swaine and Whitmore's (1988) dichotomy based on germination strategies helped clarify the tangle of terms used to describe the ecological group of species, it obscures what appears to be extreme and important variatio ...
... 1980, 1987; Coley 1983, 1988; Augspurger 1984; Oberbauer and Donnelly 1986). While Swaine and Whitmore's (1988) dichotomy based on germination strategies helped clarify the tangle of terms used to describe the ecological group of species, it obscures what appears to be extreme and important variatio ...
Characteristics of a terrestrial small mammal assemblage in a
... relationships and demographic characteristics. The questions addressed here are: to what extent do small mammal faunas in relatively undisturbed rainforests show similar characteristics in their abundances, demography, reproductive patterns, and other ecological aspects? If major differences exist, ...
... relationships and demographic characteristics. The questions addressed here are: to what extent do small mammal faunas in relatively undisturbed rainforests show similar characteristics in their abundances, demography, reproductive patterns, and other ecological aspects? If major differences exist, ...
COST Action E27 (PROFOR) - European Forest Institute
... scientific objectives (learning by watching nature, close to nature forestry, etc.). A lot of rare and threatened species are to be found in woodlands characterised by a high naturalness such as old growth forests. For instance, saproxylic species are typically linked to over-mature trees or to larg ...
... scientific objectives (learning by watching nature, close to nature forestry, etc.). A lot of rare and threatened species are to be found in woodlands characterised by a high naturalness such as old growth forests. For instance, saproxylic species are typically linked to over-mature trees or to larg ...
Delayed biodiversity change: no time to waste
... connectivity between remaining habitat patches [4], simultaneously affecting genes, species, and communities. In the worst case, such changes result in losses of ecosystem services that contribute to human well-being, but often with delays of several decades [2,5]. Delayed biodiversity responses can ...
... connectivity between remaining habitat patches [4], simultaneously affecting genes, species, and communities. In the worst case, such changes result in losses of ecosystem services that contribute to human well-being, but often with delays of several decades [2,5]. Delayed biodiversity responses can ...
A generic approach to integrate biodiversity considerations in
... Above, it has been shown how a proposed activity leads to a number of biophysical changes (either directly, or through social change processes). It has furthermore been demonstrated that, having identified these changes, one can define the geographical area where these changes occur, and thus one ca ...
... Above, it has been shown how a proposed activity leads to a number of biophysical changes (either directly, or through social change processes). It has furthermore been demonstrated that, having identified these changes, one can define the geographical area where these changes occur, and thus one ca ...
Plant Diversity of Forests
... of climate change the species will have to respond to faster changes. Although the effect of climate change will vary from site to site, it is likely that its impacts on ecosystems will be adverse, as species will have to deal with a variety of new competitors, and biotic factors (diseases, predator ...
... of climate change the species will have to respond to faster changes. Although the effect of climate change will vary from site to site, it is likely that its impacts on ecosystems will be adverse, as species will have to deal with a variety of new competitors, and biotic factors (diseases, predator ...
Drought effects on seedling survival in a tropical moist forest
... strongly in the tropics, and plant species abundance, distribution and diversity are correlated with rainfall. Drought periods leading to plant stress occur not only in dry forests, but also in moist and even wet forests. We quantified experimentally the effect of drought on survival of first year s ...
... strongly in the tropics, and plant species abundance, distribution and diversity are correlated with rainfall. Drought periods leading to plant stress occur not only in dry forests, but also in moist and even wet forests. We quantified experimentally the effect of drought on survival of first year s ...
Functional and phylogenetic diversity of woody plants drive
... Srivastava et al., 2012), and has been shown to predict herbivoryinduced seedling mortality in some cases better than the diversity of functional traits commonly considered to be important for herbivores (Paine et al., 2012). Moreover, non-additive effects of increasing plant species richness on her ...
... Srivastava et al., 2012), and has been shown to predict herbivoryinduced seedling mortality in some cases better than the diversity of functional traits commonly considered to be important for herbivores (Paine et al., 2012). Moreover, non-additive effects of increasing plant species richness on her ...
Insights into regional patterns of Amazonian forest structure
... were performed for both size categories (all individuals and large individuals) and for ...
... were performed for both size categories (all individuals and large individuals) and for ...
Small-Population Approach
... loss of the genetic variation necessary to enable evolutionary responses to environmental change • Small populations and low genetic diversity do not always lead to extinction ...
... loss of the genetic variation necessary to enable evolutionary responses to environmental change • Small populations and low genetic diversity do not always lead to extinction ...
Newton`s Laws of Motion - Augusta Independent Schools
... Sustainable use means using resources at a rate in which they can be replaced or recycled while preserving the long-term environmental health of the biosphere. ...
... Sustainable use means using resources at a rate in which they can be replaced or recycled while preserving the long-term environmental health of the biosphere. ...
An Ecolab Perspective on the Bedau Evolutionary Statistics
... highly conservative with respect to connectivity. It assumes that a new species inherits the same connections as its parent, with random additions or deletions according to a symmetric distribution (just as likely to gain a connection as lose one). This has the effect of preserving the connectivity ...
... highly conservative with respect to connectivity. It assumes that a new species inherits the same connections as its parent, with random additions or deletions according to a symmetric distribution (just as likely to gain a connection as lose one). This has the effect of preserving the connectivity ...
Tropical Andes
The Tropical Andes is a subregion of the Andes spanning all of the Andes except the southern mediterranean and temperate zones. The Tropical Andes area spans 1,542,644 km2.