Persistence of Forest Birds in the Costa Rican Agricultural Countryside
... Tropical forests worldwide are being reduced to biologically impoverished remnants (Laurance & Bierregaard 1997) embedded in the agricultural countryside (hereafter “countryside”; Daily et al. 2001)—human-dominated and mostly deforested areas consisting of croplands, pasture, gardens, open second gr ...
... Tropical forests worldwide are being reduced to biologically impoverished remnants (Laurance & Bierregaard 1997) embedded in the agricultural countryside (hereafter “countryside”; Daily et al. 2001)—human-dominated and mostly deforested areas consisting of croplands, pasture, gardens, open second gr ...
USE OF SPATIAL FEATURES BY FORAGING INSECTIVOROUS
... politically to Estado de Mexico. The lowest and dominant altitude for most of the Mexico City metropolitan area is 2,240 m, but it increases slightly from city center to southern and western areas. The predominant climate in the urban area is sub-humid temperate (annual mean temperature around 15°C) ...
... politically to Estado de Mexico. The lowest and dominant altitude for most of the Mexico City metropolitan area is 2,240 m, but it increases slightly from city center to southern and western areas. The predominant climate in the urban area is sub-humid temperate (annual mean temperature around 15°C) ...
BOUNTIFUL BRAZIL
... Researching the wild relatives of crops The wild relatives of legume crops are one potential solution to future sustainable food production for a growing population in a time of climate change. This is a major aspect of current research in Kew’s Millennium Seed Bank. Securing the sustainable use of ...
... Researching the wild relatives of crops The wild relatives of legume crops are one potential solution to future sustainable food production for a growing population in a time of climate change. This is a major aspect of current research in Kew’s Millennium Seed Bank. Securing the sustainable use of ...
Armit Meadows Ecological Reserve
... an esteemed addition to Manitoba’s network of protected areas. As an ecological reserve, the Armit Meadows site will be maintained for the preservation and protection of pristine riparian habitat and the Fescue Prairie ecosystem. Passive non-consumptive visits on foot are permitted. All other activi ...
... an esteemed addition to Manitoba’s network of protected areas. As an ecological reserve, the Armit Meadows site will be maintained for the preservation and protection of pristine riparian habitat and the Fescue Prairie ecosystem. Passive non-consumptive visits on foot are permitted. All other activi ...
Future directions of fisheries management
... fishing effort (Figure 2B). The inclusion of trophic interactions allows managers to observe the effects of varied fishing effort upon different species. However, the inability to reach target biomass of multiple species by regulating fishing effort alone has demonstrated the need for an approach that inclu ...
... fishing effort (Figure 2B). The inclusion of trophic interactions allows managers to observe the effects of varied fishing effort upon different species. However, the inability to reach target biomass of multiple species by regulating fishing effort alone has demonstrated the need for an approach that inclu ...
- Wiley Online Library
... Australia has reduced introduced red fox densities, but at some sites this has also resulted in higher cat activity and related predation of threatened mammals (de Tores & Marlow 2012; Department of Parks and Wildlife 2015; Marlow et al. 2015). Similar programs have since been launched in other par ...
... Australia has reduced introduced red fox densities, but at some sites this has also resulted in higher cat activity and related predation of threatened mammals (de Tores & Marlow 2012; Department of Parks and Wildlife 2015; Marlow et al. 2015). Similar programs have since been launched in other par ...
Practical messages of the study
... after cutting can increase the amount of CWD and structural heterogeneity in the following generations. The remaining fine woody debris after cleaning and selection cutting could be very important for bryophyte vegetation. The occurrence of large logs is very important, their duration is longer, the ...
... after cutting can increase the amount of CWD and structural heterogeneity in the following generations. The remaining fine woody debris after cleaning and selection cutting could be very important for bryophyte vegetation. The occurrence of large logs is very important, their duration is longer, the ...
9 tcp/rer/3402/ra/arthu - Assistance to Western Balkan Countries for
... The use of triploid aquaculture stocks raises three issues: The efficacy with which triploids are produced, which does not reach a full 100%. Hence, triploid verification has to be implemented to manage risk. The stability of the triploid state. For example, a small percentage of Pacific and S ...
... The use of triploid aquaculture stocks raises three issues: The efficacy with which triploids are produced, which does not reach a full 100%. Hence, triploid verification has to be implemented to manage risk. The stability of the triploid state. For example, a small percentage of Pacific and S ...
Community Ecology - Home
... Why is this important? Appropriate unit of study: - If the community is more than the sum of its parts, then we must study the entire ...
... Why is this important? Appropriate unit of study: - If the community is more than the sum of its parts, then we must study the entire ...
Managing for ecosystem services Lowland Agriculture
... found in both organic and non-organic farms with more butterflies found over uncropped field margins than crop edges26. In a UK study, significantly more bumblebees visited a naturally regenerated field margin than a cropped field margins managed as conservation headlands27. Bumblebees tended to pre ...
... found in both organic and non-organic farms with more butterflies found over uncropped field margins than crop edges26. In a UK study, significantly more bumblebees visited a naturally regenerated field margin than a cropped field margins managed as conservation headlands27. Bumblebees tended to pre ...
Terrestrial Natural Heritage
... Since old-field habitats are culturallycreated within this region as a result of past agricultural uses, it can be argued that, unless they are supporting species of concern, their greatest value here may be their restoration potential. Left alone these areas would eventually revert to forest which ...
... Since old-field habitats are culturallycreated within this region as a result of past agricultural uses, it can be argued that, unless they are supporting species of concern, their greatest value here may be their restoration potential. Left alone these areas would eventually revert to forest which ...
Why evolutionary biologists should get seriously involved in
... The need for assessing genetic and phenotypic diversity within species and populations Biodiversity continues to decline globally (Butchart et al. 2010; Pereira et al. 2010), with serious consequences for ecosystem structure and functioning (Cardinale et al. 2006; Duffy et al. 2007; Hooper et al. 20 ...
... The need for assessing genetic and phenotypic diversity within species and populations Biodiversity continues to decline globally (Butchart et al. 2010; Pereira et al. 2010), with serious consequences for ecosystem structure and functioning (Cardinale et al. 2006; Duffy et al. 2007; Hooper et al. 20 ...
Risk assessment and screening for potentially invasive
... studies. They found, for instance, that invasive plants are more likely to have a history of invasion and to reproduce vegetatively than non-invasive plants in particular ecosystems. In addition, some characteristics, such as having a broad diet and diverse climatic tolerances, previously thought to ...
... studies. They found, for instance, that invasive plants are more likely to have a history of invasion and to reproduce vegetatively than non-invasive plants in particular ecosystems. In addition, some characteristics, such as having a broad diet and diverse climatic tolerances, previously thought to ...
pdf - Friends of the Gippsland Lakes Parks and Reserves
... environmental awareness in recent decades, it is recognized that much of this country’s biodiversity faces continual threats from introduced pest species such as hog deer (National Strategy for the Conservation of Australia’s Biological Diversity, 1996). We have matured as a nation since deer were p ...
... environmental awareness in recent decades, it is recognized that much of this country’s biodiversity faces continual threats from introduced pest species such as hog deer (National Strategy for the Conservation of Australia’s Biological Diversity, 1996). We have matured as a nation since deer were p ...
Neutral theory in community ecology and the hypothesis of
... et al. 2003). In general, the mean abundance of species also declines with an increase in the degree of ‘gappiness’. These results might be reconciled with classic niche theory, but it is not easy to do so. First of all, in the densely populated shade-tolerant end of the life history manifold, there ...
... et al. 2003). In general, the mean abundance of species also declines with an increase in the degree of ‘gappiness’. These results might be reconciled with classic niche theory, but it is not easy to do so. First of all, in the densely populated shade-tolerant end of the life history manifold, there ...
Ecology
... • Population growth models – Limits to exponential growth • Population Density (the number of individuals per unit of land area or water volume) increases as well • Competition follows as nutrients and resources are used up • The limit to population size that a particular environment can support is ...
... • Population growth models – Limits to exponential growth • Population Density (the number of individuals per unit of land area or water volume) increases as well • Competition follows as nutrients and resources are used up • The limit to population size that a particular environment can support is ...
Ecology of wild boar, Sus scrofa, in the Monte Desert Reserve (MaB
... The climate is semiarid and strongly seasonal, characterized by hot, humid summers and dry, cold winters. Average annual precipitation is 326 mm. Mean temperatures are lower than 10°C in winter and above 20°C in summer (Ojeda et al, 1998). Vegetation analysis: Ten 0.60 x 0.60 m. squares randomly dis ...
... The climate is semiarid and strongly seasonal, characterized by hot, humid summers and dry, cold winters. Average annual precipitation is 326 mm. Mean temperatures are lower than 10°C in winter and above 20°C in summer (Ojeda et al, 1998). Vegetation analysis: Ten 0.60 x 0.60 m. squares randomly dis ...
Life on earth
... A Dead Zone is a large region of the ocean that is very low in oxygen, and therefore can't support life. Dead Zones occur along many of the world's coastlines and are caused by fertilizer and sewage and ...
... A Dead Zone is a large region of the ocean that is very low in oxygen, and therefore can't support life. Dead Zones occur along many of the world's coastlines and are caused by fertilizer and sewage and ...
Endangered Species Brochure
... Facing the squareness of Rodeo Valley, you can see where the sharp drop of hills is broken by the startlingly flat valley that was created by time and the wash-away effects of wind, winter rains, and—small but significant—the burrowing of mammals. Creating tunnel homes, the gophers, voles, and shrew ...
... Facing the squareness of Rodeo Valley, you can see where the sharp drop of hills is broken by the startlingly flat valley that was created by time and the wash-away effects of wind, winter rains, and—small but significant—the burrowing of mammals. Creating tunnel homes, the gophers, voles, and shrew ...
The effect of human disturbance on fungal diversity in the tropics
... Tsui, K.M., Fryar, S.c., Hodgkiss, U., Hyde K.D., Poonyth, A.D. and Taylor, lE. (1998) The effect of human disturbance on fungal diversity in the tropics. Fungal Diversity 1: 19-26. An understanding of the effect of human disturbance on fungal diversity in the tropics is of paramount importance if w ...
... Tsui, K.M., Fryar, S.c., Hodgkiss, U., Hyde K.D., Poonyth, A.D. and Taylor, lE. (1998) The effect of human disturbance on fungal diversity in the tropics. Fungal Diversity 1: 19-26. An understanding of the effect of human disturbance on fungal diversity in the tropics is of paramount importance if w ...
ECOBAR Benthic indicators for monitoring the ecosystem of the
... the cost of extraction remains high due to conditions and environmental regulations, but is offset by lack of supply, high social demand and high prices. There is increased exploration activities across the region and a focus on the Goliat field. Norway exploits the Goliat field (only major find to ...
... the cost of extraction remains high due to conditions and environmental regulations, but is offset by lack of supply, high social demand and high prices. There is increased exploration activities across the region and a focus on the Goliat field. Norway exploits the Goliat field (only major find to ...
Anthropogenic Disturbance and Edge Effects on
... ANOSIM determined that there was a difference between landscapes in respect to the amphibian composition (P = 0.007), and V (Vallecitos) was different. There were differences in amphibian composition between the land cover types pasture and cloud forest (P = 0.01). There was no difference in the amp ...
... ANOSIM determined that there was a difference between landscapes in respect to the amphibian composition (P = 0.007), and V (Vallecitos) was different. There were differences in amphibian composition between the land cover types pasture and cloud forest (P = 0.01). There was no difference in the amp ...
tomorrow`s habitat chapter 3 - Minnesota DNR - MN-dnr
... The third step was to consult with individual taxa experts to obtain input about groups of species for which formalized species lists were lacking. This was done in particular for fish and aquatic insects, but some input was also sought for all other taxa. Fourth, using the broad definition develope ...
... The third step was to consult with individual taxa experts to obtain input about groups of species for which formalized species lists were lacking. This was done in particular for fish and aquatic insects, but some input was also sought for all other taxa. Fourth, using the broad definition develope ...
Ecology and Control of Introduced Plants
... these impacts are varied and often complicated. Not all weeds were introduced from faraway places. Indeed, many weeds are members of the native flora in an area. Similarly, not all introduced plant species that become established have obvious negative impacts on plant communities. For example, Arroy ...
... these impacts are varied and often complicated. Not all weeds were introduced from faraway places. Indeed, many weeds are members of the native flora in an area. Similarly, not all introduced plant species that become established have obvious negative impacts on plant communities. For example, Arroy ...
13.1 Ecologists Study Relationships
... – The amount of biodiversity in an ecosystem depends on many factors. – Rain forests have more biodiversity than other locations in the world, but are threatened by human activities. – Why is this? ...
... – The amount of biodiversity in an ecosystem depends on many factors. – Rain forests have more biodiversity than other locations in the world, but are threatened by human activities. – Why is this? ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.