from pest to keystone species
... (2006) even concluded that biodiversity of forests is concentrated mainly along their edges (Duelli 2006), and that what we usually call forest species are in fact mostly forest edge species (Wermelinger et al. 2007). Before we can state that I. typographus is a keystone species, we have to show the ...
... (2006) even concluded that biodiversity of forests is concentrated mainly along their edges (Duelli 2006), and that what we usually call forest species are in fact mostly forest edge species (Wermelinger et al. 2007). Before we can state that I. typographus is a keystone species, we have to show the ...
Chapter 5: Evolution and Community Ecology part A
... The canyon is a barrier to dispersal by small mammals, and as a consequence the isolated populations can diverge. ...
... The canyon is a barrier to dispersal by small mammals, and as a consequence the isolated populations can diverge. ...
Back to the sea: secondary marine organisms
... certain limits in the expansion of their distribution range. This makes them an ideal subject for historical reconstruction. Here I perform biogeographical analyses on the global distribution of 12 groups of land-dependent secondary marine plants and animals (mangrove trees, sea turtles, sea snakes, ...
... certain limits in the expansion of their distribution range. This makes them an ideal subject for historical reconstruction. Here I perform biogeographical analyses on the global distribution of 12 groups of land-dependent secondary marine plants and animals (mangrove trees, sea turtles, sea snakes, ...
State of Regional Parks: An Ecological Perspective
... they likely occur only as a diffuse, moving, nonbreeding population (B.C. Conservation Data Centre 1999). These shy sea birds are unique in that they nest on the large mossy branches of very old trees and fly great distances between forest and ocean habitats. With further research, the University of ...
... they likely occur only as a diffuse, moving, nonbreeding population (B.C. Conservation Data Centre 1999). These shy sea birds are unique in that they nest on the large mossy branches of very old trees and fly great distances between forest and ocean habitats. With further research, the University of ...
Red Ruffed Lemur Fast Facts
... other by the Antainambalana River in eastern Madagascar. Nearly identical to each other aside from coloration, red ruffed and black-and-white ruffed lemurs are named for the tufts of hair lining their ears and faces. Red ruffed lemurs have red coats with black faces, hands, feet, and tails. They oft ...
... other by the Antainambalana River in eastern Madagascar. Nearly identical to each other aside from coloration, red ruffed and black-and-white ruffed lemurs are named for the tufts of hair lining their ears and faces. Red ruffed lemurs have red coats with black faces, hands, feet, and tails. They oft ...
VIII.6 - UCLA EEB
... of organisms. As the name implies, a key goal of phylogeographic research is determining the relationship between the geographic location of populations and genetic differentiation among those same populations. In many cases, the recognition of deeply separated lineages within species has led to the ...
... of organisms. As the name implies, a key goal of phylogeographic research is determining the relationship between the geographic location of populations and genetic differentiation among those same populations. In many cases, the recognition of deeply separated lineages within species has led to the ...
Environmental impact of pesticides
... Intensive pesticides and fertilizers usage, loss of natural and seminatural habitats and decreased habitat heterogeneity and all other aspects of agricultural intensification have undoubted impact on biodiversity decline during last years. ...
... Intensive pesticides and fertilizers usage, loss of natural and seminatural habitats and decreased habitat heterogeneity and all other aspects of agricultural intensification have undoubted impact on biodiversity decline during last years. ...
The Mediterranean : 13 key areas to protect
... Alboran Island and Cabo de Gata have been declared protected areas by the regional Government of Andalusia. Al Hoceima in Morocco, west of Melilla, is still waiting for the official institution at national level, and its management, monitoring and protection systems are very weak. Considering the hi ...
... Alboran Island and Cabo de Gata have been declared protected areas by the regional Government of Andalusia. Al Hoceima in Morocco, west of Melilla, is still waiting for the official institution at national level, and its management, monitoring and protection systems are very weak. Considering the hi ...
Different but equal: the implausible assumption at the heart of
... *Correspondence author. E-mail: [email protected] Re-use of this article is permitted in accordance with the Terms and Conditions set out at http://wileyonlinelibrary.com/onlineopen# OnlineOpen_Terms ...
... *Correspondence author. E-mail: [email protected] Re-use of this article is permitted in accordance with the Terms and Conditions set out at http://wileyonlinelibrary.com/onlineopen# OnlineOpen_Terms ...
Conceptual problems and scale limitations of defining ecological
... van Andel model of ecological communities Looijen & van Andel (1999) provided two criteria that are linked together as their approach to defining communities. The first of these could be called ‘restricted membership’. Looijen & van Andel (1999) noted that researchers have defined communities as eit ...
... van Andel model of ecological communities Looijen & van Andel (1999) provided two criteria that are linked together as their approach to defining communities. The first of these could be called ‘restricted membership’. Looijen & van Andel (1999) noted that researchers have defined communities as eit ...
Latitudinal gradients in biotic niche breadth vary
... of sources and were compiled over many decades, it is likely that they vary in their resolution and in the amount of sampling effort invested in their assembly. Many analyses of food-web structure attempt to reduce this variation by using food webs composed of ‘trophic species’—aggregations of speci ...
... of sources and were compiled over many decades, it is likely that they vary in their resolution and in the amount of sampling effort invested in their assembly. Many analyses of food-web structure attempt to reduce this variation by using food webs composed of ‘trophic species’—aggregations of speci ...
IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT)
... species and high cost of implementation of conservation strategies are one of the major problems facing medicinal plant conservation. 19 respondents indicated that poor environmental perception and education was the major cause while 11 indicated that extensive and uncontrolled habitat destruction w ...
... species and high cost of implementation of conservation strategies are one of the major problems facing medicinal plant conservation. 19 respondents indicated that poor environmental perception and education was the major cause while 11 indicated that extensive and uncontrolled habitat destruction w ...
Management strategies for plant invasions: manipulating
... published studies of grazing effects in contrasting environments (Proulx & Mazumder, 1998). Grazing fits the definition of a mortality-causing disturbance because it results in the mortality of all (in the case of grazing of phytoplankton) or part (in the case of most terrestrial grazers) of a plant ...
... published studies of grazing effects in contrasting environments (Proulx & Mazumder, 1998). Grazing fits the definition of a mortality-causing disturbance because it results in the mortality of all (in the case of grazing of phytoplankton) or part (in the case of most terrestrial grazers) of a plant ...
The problem of pattern and scale in ecology: what have we learned
... Abstract Over the past 20 years, major advances have clarified how ecological patterns inform theory, and how in turn theory informs applied ecology. Also, there has been an increased recognition that the problem of scale at which ecological processes should be considered is critical if we are to pr ...
... Abstract Over the past 20 years, major advances have clarified how ecological patterns inform theory, and how in turn theory informs applied ecology. Also, there has been an increased recognition that the problem of scale at which ecological processes should be considered is critical if we are to pr ...
Invasions and stable isotope analysis – informing ecology and
... in eradication attempts. We highlight the potential for such approaches to rapidly and simply provide detailed ecological information. We conclude that this technique can be used not only to inform our understanding of the problems caused by invasive species, but also to facilitate conservation and ...
... in eradication attempts. We highlight the potential for such approaches to rapidly and simply provide detailed ecological information. We conclude that this technique can be used not only to inform our understanding of the problems caused by invasive species, but also to facilitate conservation and ...
Ecology - Zanichelli online
... A species’ niche is the set of physical and biological conditions it requires to survive, grow, and reproduce. A niche is therefore partly defined by the resources available in the environment. ...
... A species’ niche is the set of physical and biological conditions it requires to survive, grow, and reproduce. A niche is therefore partly defined by the resources available in the environment. ...
How parasites divide resources: a test of the niche apportionment
... co-occurrence that depart from various null models (Guégan & Hugueny 1994; Poulin 1996; Worthen & Rohde 1996; Poulin & Valtonen 2001; Gotelli & Rohde 2002). Taken as a whole, these investigations have revealed that departures from random species assembly do occur, but they are the exceptions rather ...
... co-occurrence that depart from various null models (Guégan & Hugueny 1994; Poulin 1996; Worthen & Rohde 1996; Poulin & Valtonen 2001; Gotelli & Rohde 2002). Taken as a whole, these investigations have revealed that departures from random species assembly do occur, but they are the exceptions rather ...
World Heritage Listing for the Okavango Delta.
... Kalahari desert, and incorporating a variety of habitats including woodlands, riverine forests grasslands, floodplains and sand veldt islands The Delta supports an outstanding biodiversity of life including 150 species of mammals, over 500 species of birds, 90 species of fish, as well as plants, rep ...
... Kalahari desert, and incorporating a variety of habitats including woodlands, riverine forests grasslands, floodplains and sand veldt islands The Delta supports an outstanding biodiversity of life including 150 species of mammals, over 500 species of birds, 90 species of fish, as well as plants, rep ...
Beyond species loss: The extinction of ecological
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
Publications_files/EEEP Preservation
... diversity or biodiversity. The biologist Francis Sumner, for example, wrote in 1920 of the "importance of saving from desrruction the greatest possible number of living species of animals and plants, and saving them, so far as possible, in their natural habitats and in their natural relarions to one ...
... diversity or biodiversity. The biologist Francis Sumner, for example, wrote in 1920 of the "importance of saving from desrruction the greatest possible number of living species of animals and plants, and saving them, so far as possible, in their natural habitats and in their natural relarions to one ...
Creating Schoolyard Habitats - National Wildlife Federation
... But adaptations are useful only in the habitat for which an animal is adapted. A freshwater newt, adapted to living in or near water, wouldn’t survive long in the desert. People often confuse adaptation with adjusting or responding to a change in environment. Adjustment happens, for example, wheneve ...
... But adaptations are useful only in the habitat for which an animal is adapted. A freshwater newt, adapted to living in or near water, wouldn’t survive long in the desert. People often confuse adaptation with adjusting or responding to a change in environment. Adjustment happens, for example, wheneve ...
Beyond species loss: the extinction of ecological interactions in a
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
Download poster as a PDF file
... The U.S. Army Garrison Hawai‘i is required to manage 67 endangered taxa, including 51 plants, nine tree snails, one bird species, and potentially six picturewing flies on the island of O‘ahu, Hawai‘i. These species occupy fragmented, disturbed habitat and face multiple threats. The O‘ahu Army Natura ...
... The U.S. Army Garrison Hawai‘i is required to manage 67 endangered taxa, including 51 plants, nine tree snails, one bird species, and potentially six picturewing flies on the island of O‘ahu, Hawai‘i. These species occupy fragmented, disturbed habitat and face multiple threats. The O‘ahu Army Natura ...
Functional agrobiodiversity: Nature serving Europe`s - ELN-FAB
... biodiversity elements generate ecosystem services, tools can be generated for farmers to make their production systems more robust to disturbances and less dependent on external inputs. This will be essential to ensure the delivery of safe and sufficient food, fibre and fuel, as well as public envir ...
... biodiversity elements generate ecosystem services, tools can be generated for farmers to make their production systems more robust to disturbances and less dependent on external inputs. This will be essential to ensure the delivery of safe and sufficient food, fibre and fuel, as well as public envir ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.