Is There a Latitudinal Gradient in the Importance of Biotic Interactions?
... Rica (photo: Phil DeVries). Many male skippers feed on fresh bird droppings, often from birds that forage at army ant swarms. (b) Electric knife fishes (Gymnotiformes: Apteronotidae) from the Neotropics generate weak electric fields to electrolocate prey, predators, and conspecifics. Left: Adontosterna ...
... Rica (photo: Phil DeVries). Many male skippers feed on fresh bird droppings, often from birds that forage at army ant swarms. (b) Electric knife fishes (Gymnotiformes: Apteronotidae) from the Neotropics generate weak electric fields to electrolocate prey, predators, and conspecifics. Left: Adontosterna ...
Conservation Systematics: The Bufo boreas Species Group
... species is a legal biological entity. An estimated 6 months to several years is needed for documentation of characteristics defining species and for the publication of formal species descriptions in peer-reviewed journals. Even with formal descriptions, only the name is a legal entity and it belongs ...
... species is a legal biological entity. An estimated 6 months to several years is needed for documentation of characteristics defining species and for the publication of formal species descriptions in peer-reviewed journals. Even with formal descriptions, only the name is a legal entity and it belongs ...
Criteria and Indicators for Assessing the Sustainability
... broad concept and, given the huge diversity of life in tropical forests, it is impossible to make rapid direct assessments of biodiversity in forests in anything other than a superficial manner. It is likely that there will be limited skilled human resources and time for biodiversity assessment in a ...
... broad concept and, given the huge diversity of life in tropical forests, it is impossible to make rapid direct assessments of biodiversity in forests in anything other than a superficial manner. It is likely that there will be limited skilled human resources and time for biodiversity assessment in a ...
2011_Priority_Commmon_Science_Needs_Details
... Identification of highest priorities and gaps in distribution data for amphibians; vulnerability assessments including vernal pools, migratory barriers, sea level rise. ...
... Identification of highest priorities and gaps in distribution data for amphibians; vulnerability assessments including vernal pools, migratory barriers, sea level rise. ...
PDF, 787 KB
... biodiversity loss. In fact, if the current rate of loss of biological resources is continued, within a few generations that will lead to unprecedented consequences for humankind. The EU and other states have set an objective to halt or significantly reduce the current rate of loss of biodiversity ...
... biodiversity loss. In fact, if the current rate of loss of biological resources is continued, within a few generations that will lead to unprecedented consequences for humankind. The EU and other states have set an objective to halt or significantly reduce the current rate of loss of biodiversity ...
Classification and Biogeography of New World Grasses
... number of undescribed species especially in the Andes, Guayana Highlands, and mountainous southeastern Brazil. Olyreae (21 genera, 116–120 spp.) are almost exclusively American and are dominated by Olyra (23 spp.) and Pariana (several to 38 spp.), with one monotypic genus endemic to New Guinea (for ...
... number of undescribed species especially in the Andes, Guayana Highlands, and mountainous southeastern Brazil. Olyreae (21 genera, 116–120 spp.) are almost exclusively American and are dominated by Olyra (23 spp.) and Pariana (several to 38 spp.), with one monotypic genus endemic to New Guinea (for ...
Biodiversity Significance of North East India
... (Myers 2000). The hotspot is, the second largest and next only to the Mediterranean basin with an area 2,20,60,000 sq km among the 25 identified globally. All the global hotspots are based on two criteria: species endemism and degree of threat. To qualify as a hotspot an area must contain atleast 0. ...
... (Myers 2000). The hotspot is, the second largest and next only to the Mediterranean basin with an area 2,20,60,000 sq km among the 25 identified globally. All the global hotspots are based on two criteria: species endemism and degree of threat. To qualify as a hotspot an area must contain atleast 0. ...
sectoral biodiversity action plan
... the conservation of biodiversity given the scale, nature and location of the landholdings. It is the aim of the Department to ensure that biodiversity is conserved to the greatest extent possible on its lands whilst meeting Military training needs. As set out in paragraph 1.4 above the Department an ...
... the conservation of biodiversity given the scale, nature and location of the landholdings. It is the aim of the Department to ensure that biodiversity is conserved to the greatest extent possible on its lands whilst meeting Military training needs. As set out in paragraph 1.4 above the Department an ...
Why Do Some Tropical Forests Have So Many Species of Trees?
... evolves very slowly between separated tree populations. If so, tree species rarely originate by splitting of large populations. Instead, they begin with few trees. The few studies available suggest that reproductive isolation between plant populations usually results from selection driven by lowered ...
... evolves very slowly between separated tree populations. If so, tree species rarely originate by splitting of large populations. Instead, they begin with few trees. The few studies available suggest that reproductive isolation between plant populations usually results from selection driven by lowered ...
Theory meets reality: How habitat fragmentation research has
... Island biogeography theory (IBT) provides a basic conceptual model for understanding habitat fragmentation. Empirical studies of fragmented landscapes often reveal strong effects of fragment area and isolation on species richness, although other predictions of the theory, such as accelerated species ...
... Island biogeography theory (IBT) provides a basic conceptual model for understanding habitat fragmentation. Empirical studies of fragmented landscapes often reveal strong effects of fragment area and isolation on species richness, although other predictions of the theory, such as accelerated species ...
Biodiversity
... Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions support fewer species. Rapid environmental changes typically cause mass extinctions. One estimate is that less than 1% of the species that have existed on Earth are extan ...
... Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions support fewer species. Rapid environmental changes typically cause mass extinctions. One estimate is that less than 1% of the species that have existed on Earth are extan ...
Phenological diversity in tropical forests
... forest. In spite of the annual rhythm observed at the community level, only 29% of 254 trees showed an annual flowering pattern at La Selva in Costa Rica (Fig. 1) (Newstrom et al. 1994b). The predominant flowering type was the subannual pattern (flowering more than once a year, often irregularly), a ...
... forest. In spite of the annual rhythm observed at the community level, only 29% of 254 trees showed an annual flowering pattern at La Selva in Costa Rica (Fig. 1) (Newstrom et al. 1994b). The predominant flowering type was the subannual pattern (flowering more than once a year, often irregularly), a ...
Managing for ocean biodiversity to sustain marine ecosystem services.
... Figure 2. A schematic view of the benefits of biodiversity. Diversity (red ring) issues. Although they nominally add to enhances a variety of ecological processes (blue ring). These enhanced processes biodiversity by increasing the number of accelerate benefits that ecosystems provide in terms of re ...
... Figure 2. A schematic view of the benefits of biodiversity. Diversity (red ring) issues. Although they nominally add to enhances a variety of ecological processes (blue ring). These enhanced processes biodiversity by increasing the number of accelerate benefits that ecosystems provide in terms of re ...
Evaluating least-cost model predictions with empirical
... recommendations for P. rufus at both local and national levels. [ABSTRACT FROM AUTHOR]; DOI: 10.1017/S0030605307001883 Effect of Human Disturbance on Bee Communities in a Forested Ecosystem. By: WINFREE, RACHAEL; GRISWOLD, TERRY; KREMEN, CLAIRE. Conservation Biology, Feb2007, Vol. 21 Issue 1, p213-2 ...
... recommendations for P. rufus at both local and national levels. [ABSTRACT FROM AUTHOR]; DOI: 10.1017/S0030605307001883 Effect of Human Disturbance on Bee Communities in a Forested Ecosystem. By: WINFREE, RACHAEL; GRISWOLD, TERRY; KREMEN, CLAIRE. Conservation Biology, Feb2007, Vol. 21 Issue 1, p213-2 ...
Critically Endangered Fijian Crested Iguana (Brachylophus vitiensis
... Pacific and globally. In Fiji, the endangered Fijian crested iguana (Brachylophus vitiensis) is endemic to tropical dry forests. Yadua Taba Island contains one of the best remaining stands of tropical dry forest in the Pacific along with the largest (and only secure) population of B. vitiensis in Fi ...
... Pacific and globally. In Fiji, the endangered Fijian crested iguana (Brachylophus vitiensis) is endemic to tropical dry forests. Yadua Taba Island contains one of the best remaining stands of tropical dry forest in the Pacific along with the largest (and only secure) population of B. vitiensis in Fi ...
Transition St Andrews INTERACTIVE BIODIVERSITY INDEX WELCOME TO YOUR REPORT
... created Create a Biodiversity Action Plan for the company or organisation detailing the aims, objectives, site management plan and external ...
... created Create a Biodiversity Action Plan for the company or organisation detailing the aims, objectives, site management plan and external ...
Critically Endangered Fijian Crested Iguana (Brachylophus
... Pacific and globally. In Fiji, the endangered Fijian crested iguana (Brachylophus vitiensis) is endemic to tropical dry forests. Yadua Taba Island contains one of the best remaining stands of tropical dry forest in the Pacific along with the largest (and only secure) population of B. vitiensis in Fi ...
... Pacific and globally. In Fiji, the endangered Fijian crested iguana (Brachylophus vitiensis) is endemic to tropical dry forests. Yadua Taba Island contains one of the best remaining stands of tropical dry forest in the Pacific along with the largest (and only secure) population of B. vitiensis in Fi ...
dodo and calvaria
... few studies have examined quantitatively the effect of bird species richness on seed dispersal and regeneration of plant populations. The scarcity of relevant studies lies in difficulties in approach: an experimental approach has to be excluded from an ethical point of view; and comparative approach ...
... few studies have examined quantitatively the effect of bird species richness on seed dispersal and regeneration of plant populations. The scarcity of relevant studies lies in difficulties in approach: an experimental approach has to be excluded from an ethical point of view; and comparative approach ...
Biodiversity loss
... Biodiversity Loss _____________________ describes the disappearance of a particular population from a given area, but not of the entire species from Earth. _______________________ - the pace at which species naturally go extinct. ...
... Biodiversity Loss _____________________ describes the disappearance of a particular population from a given area, but not of the entire species from Earth. _______________________ - the pace at which species naturally go extinct. ...
Full project description
... measuring woody plants with dbh (diameter at breast height) > 30cm (trees). While woody plants with dbh 5-30cm (saplings) were measured in 11 subplots of 200m2 (40m x 5m). While ground cover was measured in 55 sub-sub plots of 0.25 m2 (0,5m x 0,5m) set up in each plot of all ecosystems types (Append ...
... measuring woody plants with dbh (diameter at breast height) > 30cm (trees). While woody plants with dbh 5-30cm (saplings) were measured in 11 subplots of 200m2 (40m x 5m). While ground cover was measured in 55 sub-sub plots of 0.25 m2 (0,5m x 0,5m) set up in each plot of all ecosystems types (Append ...
Plant Species Diversity and Management of Temperate Forage and
... These results and concepts have spilled over into other areas (Brummer, 1998), such as forage and grazing land research, and are beginning to influence management recommendations. For example, Tilman et al. (1999) suggested exploring the concept of high diversity grazing lands for livestock producti ...
... These results and concepts have spilled over into other areas (Brummer, 1998), such as forage and grazing land research, and are beginning to influence management recommendations. For example, Tilman et al. (1999) suggested exploring the concept of high diversity grazing lands for livestock producti ...
INSECTS ON PLANTS: Diversity of Herbivore Assemblages Revisited
... whose comparison or analysis at the regional level is hampered by the many unnamed species they usually contain, so that specimens rather than names must be cross-checked (Kitching 1993). Furthermore, the asymptotic species richness of host-associated herbivore communities is difficult to estimate b ...
... whose comparison or analysis at the regional level is hampered by the many unnamed species they usually contain, so that specimens rather than names must be cross-checked (Kitching 1993). Furthermore, the asymptotic species richness of host-associated herbivore communities is difficult to estimate b ...
MEASURING BIODIVERSITY IN CITIES: THE SINGAPORE INDEX
... BIODIVERSITY Dr Lena Chan National Biodiversity Centre National Parks Board Singapore ...
... BIODIVERSITY Dr Lena Chan National Biodiversity Centre National Parks Board Singapore ...
Entomology in Ecuador - Horizon documentation-IRD
... a comprehensive review of every paper in entomology published on the Ecuadorian insect fauna, but rather to cite studies, especially those published by, or in collaboration with, Ecuadorian entomologists, that we have found especially important and revealing to illustrate the development of entomolo ...
... a comprehensive review of every paper in entomology published on the Ecuadorian insect fauna, but rather to cite studies, especially those published by, or in collaboration with, Ecuadorian entomologists, that we have found especially important and revealing to illustrate the development of entomolo ...
Metacommunity analysis of Mexican bats - MyWeb
... which environmental characteristics are most important in shaping metacommunity structures at each spatial extent. MATERIALS AND METHODS Species data One of the main obstacles to the description of broad-scale patterns is the lack of comparable information on intensive sampling at numerous local sit ...
... which environmental characteristics are most important in shaping metacommunity structures at each spatial extent. MATERIALS AND METHODS Species data One of the main obstacles to the description of broad-scale patterns is the lack of comparable information on intensive sampling at numerous local sit ...
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.