Enos Lake Benthic and Limnetic Threespine Stickleback Species
... isolated species pairs that occur in lakes in a restricted area of the Strait of Georgia, southwestern British Columbia. Limnetics primarily exploit plankton, and had traits that are considered adaptations to a zooplankton-consuming lifestyle. Benthics had traits that are considered to be advantageo ...
... isolated species pairs that occur in lakes in a restricted area of the Strait of Georgia, southwestern British Columbia. Limnetics primarily exploit plankton, and had traits that are considered adaptations to a zooplankton-consuming lifestyle. Benthics had traits that are considered to be advantageo ...
Advantages and disadvantages of interferencecompetitive ability
... in these communities is exclusively ‘from above’. In a classic example of a competition–colonization tradeoff, small species are considered incapable of establishing in developed communities and are instead restricted to colonizing only in large areas of free space created through disturbance (Connel ...
... in these communities is exclusively ‘from above’. In a classic example of a competition–colonization tradeoff, small species are considered incapable of establishing in developed communities and are instead restricted to colonizing only in large areas of free space created through disturbance (Connel ...
3.4.2.6 Rare Plant Occurrences 3.4.2.6.1 Rare Vascular Plants
... in a transition area between a low-bush cranberry Aw-Sw and shrubby rich fen ...
... in a transition area between a low-bush cranberry Aw-Sw and shrubby rich fen ...
The Distribution And Diversity Of Land Snails In Shimba Hills
... forests as one of the top ten priority ecosystems for biodiversity conservation on the African continent (Myers et al., 2000). Despite the biodiversity conservation significance of these forests, many remain unexplored for several taxa such as land snails. Previous incidental land snail collections ...
... forests as one of the top ten priority ecosystems for biodiversity conservation on the African continent (Myers et al., 2000). Despite the biodiversity conservation significance of these forests, many remain unexplored for several taxa such as land snails. Previous incidental land snail collections ...
Long-footed potoroo - recovery plan (PDF
... species in the wild is still doubtful given the extremely limited area over which it is found and the consequent potential for population extinction. In view of these combined factors, the current recovery plan maintains a pragmatic approach to conservation of the Long-footed Potoroo in the wild. Ov ...
... species in the wild is still doubtful given the extremely limited area over which it is found and the consequent potential for population extinction. In view of these combined factors, the current recovery plan maintains a pragmatic approach to conservation of the Long-footed Potoroo in the wild. Ov ...
Climate change adaptation plans for South African biomes
... South Africa’s rich diversity of plants and animals and its high levels of endemism are critical to our national heritage and supports livelihoods and economic development. Biodiversity provides people with basic ecosystem goods (i.e. food; fibre and medicine, etc.) and services (i.e. air and water ...
... South Africa’s rich diversity of plants and animals and its high levels of endemism are critical to our national heritage and supports livelihoods and economic development. Biodiversity provides people with basic ecosystem goods (i.e. food; fibre and medicine, etc.) and services (i.e. air and water ...
Habitat Features Determine the Basking Distribution of
... Species declines are often driven by the impacts of exotic species (e.g., Wilcove et al. 1998). These introduced species may be a primary cause of decline in the native species or may act synergistically with ecosystem modification (Didham et al. 2005). Given the ubiquity of nonnative species in man ...
... Species declines are often driven by the impacts of exotic species (e.g., Wilcove et al. 1998). These introduced species may be a primary cause of decline in the native species or may act synergistically with ecosystem modification (Didham et al. 2005). Given the ubiquity of nonnative species in man ...
New Hampshire Snowshoe Hare Assessment 2015
... Snowshoe hares are one of the few species of wildlife that have cyclic populations. Snowshoe hare populations across northern Canada and Alaska fluctuate with peaks occurring every 8 to 11 years in much of the boreal forest of North America. However, population trends in southern Canada and the cont ...
... Snowshoe hares are one of the few species of wildlife that have cyclic populations. Snowshoe hare populations across northern Canada and Alaska fluctuate with peaks occurring every 8 to 11 years in much of the boreal forest of North America. However, population trends in southern Canada and the cont ...
climate change adaptation plans for south african biomes
... South Africa’s rich diversity of plants and animals and its high levels of endemism are critical to our national heritage and supports livelihoods and economic development. Biodiversity provides people with basic ecosystem goods (i.e. food; fibre and medicine, etc.) and services (i.e. air and water ...
... South Africa’s rich diversity of plants and animals and its high levels of endemism are critical to our national heritage and supports livelihoods and economic development. Biodiversity provides people with basic ecosystem goods (i.e. food; fibre and medicine, etc.) and services (i.e. air and water ...
temperate lake ecosystems Synchronous dynamics of zooplankton
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
Survey of Seeps and Springs within the Bureau of Land
... subterranean flow through aquifers, many spring source species do not occupy downstream habitats where temporal fluctuations in water temperature and flow are greater (BLM 2000; Martinson 1980). Surveys conducted in the Great Basin have shown that seeps and springs are often hot spots of biological ...
... subterranean flow through aquifers, many spring source species do not occupy downstream habitats where temporal fluctuations in water temperature and flow are greater (BLM 2000; Martinson 1980). Surveys conducted in the Great Basin have shown that seeps and springs are often hot spots of biological ...
![[FSH] 1909.12 - USDA Forest Service](http://s1.studyres.com/store/data/019722113_1-42a2cbdd7b7e77719b75dd249f8d7e0b-300x300.png)
[FSH] 1909.12 - USDA Forest Service
... official shall identify and evaluate existing information relevant to the plan area for the following: (1) Terrestrial ecosystems, aquatic ecosystems, and watersheds; (2) Air, soil, and water resources and quality; (3) System drivers, including dominant ecological processes, disturbance regimes, and ...
... official shall identify and evaluate existing information relevant to the plan area for the following: (1) Terrestrial ecosystems, aquatic ecosystems, and watersheds; (2) Air, soil, and water resources and quality; (3) System drivers, including dominant ecological processes, disturbance regimes, and ...
Click here to read the entire petition.
... subpopulation and 20 percent of the Central subpopulation. Halbert et al., 2012, at 9. The threat to the continued existence of the Yellowstone bison from hunting/culling must be considered by FWS during its consideration as to whether to list the DPS as threatened or endangered (whether under facto ...
... subpopulation and 20 percent of the Central subpopulation. Halbert et al., 2012, at 9. The threat to the continued existence of the Yellowstone bison from hunting/culling must be considered by FWS during its consideration as to whether to list the DPS as threatened or endangered (whether under facto ...
State of Michigan’s Status and Strategy for Spiny Waterflea Management Scope Bythotrephes longimanus
... found that feeding activities of the spiny waterflea may be directly correlated with a reduction in zooplankton populations (Yan et al. 2002). Consumption rates of the spiny waterflea often equal or exceed the productivity of its planktonic prey (Lehman and Caceres 1993, Kelly et al. 2013). The spin ...
... found that feeding activities of the spiny waterflea may be directly correlated with a reduction in zooplankton populations (Yan et al. 2002). Consumption rates of the spiny waterflea often equal or exceed the productivity of its planktonic prey (Lehman and Caceres 1993, Kelly et al. 2013). The spin ...
Full Text - Digital Access to Scholarship at Harvard
... richness, or alpha diversity, which describes the number of species that live in a community. There are many factors that influence species richness [2]. For example, island biogeography theory suggests that, all else equal, communities that encompass a large area are also more likely to receive imm ...
... richness, or alpha diversity, which describes the number of species that live in a community. There are many factors that influence species richness [2]. For example, island biogeography theory suggests that, all else equal, communities that encompass a large area are also more likely to receive imm ...
34. Chanas, B., Pawlik, J.R. 1995.
... of Caribbean reef sponges. Sponge species with high concentrations of spicules in their tissues, and with variable spicule morphologies, were chosen for the experiments. The presence of spicules did not alter food palatability relative to controls for any of the sponges tested. Analyses of ash conte ...
... of Caribbean reef sponges. Sponge species with high concentrations of spicules in their tissues, and with variable spicule morphologies, were chosen for the experiments. The presence of spicules did not alter food palatability relative to controls for any of the sponges tested. Analyses of ash conte ...
When natural habitat fails to enhance biological pest control
... habitat to sustaining or restoring biological pest control in agricultural landscapes, variability is high and there is also scattered evidence for the reverse; that is, natural habitat can have no, or even negative, effects on pest control. In this perspective paper, we identify several conditions ...
... habitat to sustaining or restoring biological pest control in agricultural landscapes, variability is high and there is also scattered evidence for the reverse; that is, natural habitat can have no, or even negative, effects on pest control. In this perspective paper, we identify several conditions ...
Habitat corridors facilitate genetic resilience irrespective of species
... To test for the genetic effects of habitat fragmentation with corridors, we constructed a forward-time, agent-based model that tracks individuals and their associated genotypes through space and time. Here, we model a patch–corridor system that consists of patches of naturally occurring or restored ...
... To test for the genetic effects of habitat fragmentation with corridors, we constructed a forward-time, agent-based model that tracks individuals and their associated genotypes through space and time. Here, we model a patch–corridor system that consists of patches of naturally occurring or restored ...
Seedling survival and seed size
... 1 Large-seeded species have long been known to have higher survivorship during establishment than small-seeded species. Here, we assessed the size of this advantage by compiling published data on survival through seedling emergence, seedling establishment and sapling establishment. 2 We found no rel ...
... 1 Large-seeded species have long been known to have higher survivorship during establishment than small-seeded species. Here, we assessed the size of this advantage by compiling published data on survival through seedling emergence, seedling establishment and sapling establishment. 2 We found no rel ...
8: Two Case Studies: Non-Indigeneous Species in Hawaii and Florida
... greater force behind extinctions in the past, today MS, through predation and competition, are often considered to be the main threat because they can invade parks and other natural areas protected from development (128). Hawaii has been described as the 50th State but first in terms of biological i ...
... greater force behind extinctions in the past, today MS, through predation and competition, are often considered to be the main threat because they can invade parks and other natural areas protected from development (128). Hawaii has been described as the 50th State but first in terms of biological i ...
Conservation of the critically endangered Mangrove Finch
... al. 2010). Additional sampling from 2012-13 using the same methods puts current population estimates at a minimum of approximately 60 birds. (Minimum numbers are suggested here because it is challenging to identify unbanded non-breeding birds). ...
... al. 2010). Additional sampling from 2012-13 using the same methods puts current population estimates at a minimum of approximately 60 birds. (Minimum numbers are suggested here because it is challenging to identify unbanded non-breeding birds). ...
Impact of environmental factors on fish distribution assessed in rangeland streams
... tradeoff between temperature and dis- time in refuges in order to feed (Walters excess of 84.2°F. It is not known whether and Juanes 1993). The distribution of solved oxygen in their use of pools. California native fish such as rainbow fish relative to thermal refugia, and the Stratified pools may have ...
... tradeoff between temperature and dis- time in refuges in order to feed (Walters excess of 84.2°F. It is not known whether and Juanes 1993). The distribution of solved oxygen in their use of pools. California native fish such as rainbow fish relative to thermal refugia, and the Stratified pools may have ...
Novel ecosystems in the Anthropocene
... indirect global drivers affect the trajectories of all ecosystems on Earth, but often direct, local drivers overshadow global stresses at the scales at which ecosystems are managed and regulated. Thus, we deem the concept of human agency to be useful only insofar as it allows us to distinguish novel ...
... indirect global drivers affect the trajectories of all ecosystems on Earth, but often direct, local drivers overshadow global stresses at the scales at which ecosystems are managed and regulated. Thus, we deem the concept of human agency to be useful only insofar as it allows us to distinguish novel ...
mop4_11_re_establishment_review_0
... IUCN defines ‘re-establishment’ as a successful ‘re-introduction’, a successful ‘attempt to establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct’. A re-introduction contrasts with a ‘translocation’, which is the ‘delibera ...
... IUCN defines ‘re-establishment’ as a successful ‘re-introduction’, a successful ‘attempt to establish a species in an area which was once part of its historical range, but from which it has been extirpated or become extinct’. A re-introduction contrasts with a ‘translocation’, which is the ‘delibera ...
Review of fox control measures in Box– Ironbark Conservation
... sufficient intensity to maintain a reduced fox population, allowing specified biodiversity values to respond positively. This requires a high degree of continuous landholder support in a landscape in which there are significant numbers of public and private landholders with diverse interests. In all ...
... sufficient intensity to maintain a reduced fox population, allowing specified biodiversity values to respond positively. This requires a high degree of continuous landholder support in a landscape in which there are significant numbers of public and private landholders with diverse interests. In all ...
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.