Snuffbox Epioblasma triquetra
... Snuffbox is a small species with separate sexes and is known to live at least 10 years. It is a long-term brooder: spawning occurs in the summer and the larvae (called glochidia) are released the following May-June. The glochidia are small- to mediumsized, hookless, and attach to the gills of their ...
... Snuffbox is a small species with separate sexes and is known to live at least 10 years. It is a long-term brooder: spawning occurs in the summer and the larvae (called glochidia) are released the following May-June. The glochidia are small- to mediumsized, hookless, and attach to the gills of their ...
Coexistence of two stage-structured intraguild predators
... fixed population P have widened their niche compared to juveniles, feeding on both resource and juveniles of the varied population (Gj). Just like in the unstructured IGP system (Mylius et al., 2001), four equilibrium types at FG ¼1 occur: (1) a resource-only equilibrium; (2) a consumer-resource equi ...
... fixed population P have widened their niche compared to juveniles, feeding on both resource and juveniles of the varied population (Gj). Just like in the unstructured IGP system (Mylius et al., 2001), four equilibrium types at FG ¼1 occur: (1) a resource-only equilibrium; (2) a consumer-resource equi ...
Adaptive physiology of heteromyid rodents
... is relatively recent. Their evolutionary history, though, is associated with progressive aridwith larger quadrupedal taxa being more mesic (and primitive), and smaller quadrupeds and all bipeds more xeric. The correlation between water regulatory efficiency and body mass is strongly negative in hete ...
... is relatively recent. Their evolutionary history, though, is associated with progressive aridwith larger quadrupedal taxa being more mesic (and primitive), and smaller quadrupeds and all bipeds more xeric. The correlation between water regulatory efficiency and body mass is strongly negative in hete ...
Ecology in Global Scenarios - Millennium Ecosystem Assessment
... that cumulative human impacts will some day push ecosystems over one or more thresholds, resulting in the collapse of a bundle of ecosystem services (Peterson et al. 2003a). The true state of affairs probably lies somewhere between these two extremes and will differ for different ecosystem services. ...
... that cumulative human impacts will some day push ecosystems over one or more thresholds, resulting in the collapse of a bundle of ecosystem services (Peterson et al. 2003a). The true state of affairs probably lies somewhere between these two extremes and will differ for different ecosystem services. ...
Biodiversity and resilience of ecosystem functions
... Ecosystem functions: The biological underpinning of ecosystem services. While ecosystem services are governed by both ecological and social factors (e.g. business demand-supply chains), in this article, we focus on the proximate biological processes such as productivity, pest control, pollination th ...
... Ecosystem functions: The biological underpinning of ecosystem services. While ecosystem services are governed by both ecological and social factors (e.g. business demand-supply chains), in this article, we focus on the proximate biological processes such as productivity, pest control, pollination th ...
Diversity and coevolutionary dynamics in high
... One of the fundamental problems in evolutionary biology is to understand how microevolutionary processes generate macroevolutionary patterns. In particular, the emergence of macroevolutionary changes in the speed of evolution (Gould and Eldredge, 1977, Simpson, 1944), and of macroevolutionary change ...
... One of the fundamental problems in evolutionary biology is to understand how microevolutionary processes generate macroevolutionary patterns. In particular, the emergence of macroevolutionary changes in the speed of evolution (Gould and Eldredge, 1977, Simpson, 1944), and of macroevolutionary change ...
113 - UConn
... quadrats decreases as latitude increases, creating a systematic bias that confounds measures of area and latitude. Even quadrats based on linear dimensions differ in the amount of land they contain because most coastal quadrats will not be full of land (Rosenzweig 1995). Consequently it is difficult ...
... quadrats decreases as latitude increases, creating a systematic bias that confounds measures of area and latitude. Even quadrats based on linear dimensions differ in the amount of land they contain because most coastal quadrats will not be full of land (Rosenzweig 1995). Consequently it is difficult ...
Glossy Black-Cockatoo Conservation Guidelines
... regarding reproduction should be addressed to the email address: [email protected] Copies of this document are available at: www.glossyblack.org.au Please cite as: Glossy Black Conservancy (2010) Glossy Black-Cockatoo Conservation Guidelines for South-Eastern Queensland and Far North-Eastern New S ...
... regarding reproduction should be addressed to the email address: [email protected] Copies of this document are available at: www.glossyblack.org.au Please cite as: Glossy Black Conservancy (2010) Glossy Black-Cockatoo Conservation Guidelines for South-Eastern Queensland and Far North-Eastern New S ...
Nitrogen in Insects - Arizona State University
... strict homeostasis in which body elemental composition shows no change in response to variation in food nutrient content. For instance, in another study of C and P balance in Daphnia, body P content declined, but only modestly (by ∼20%–30%), when animals were fed diets with greatly reduced (20-fold ...
... strict homeostasis in which body elemental composition shows no change in response to variation in food nutrient content. For instance, in another study of C and P balance in Daphnia, body P content declined, but only modestly (by ∼20%–30%), when animals were fed diets with greatly reduced (20-fold ...
Topic 1
... A. Growth and development B. Ability to move from one place to another C. Reproduction D. Respond to stimuli ...
... A. Growth and development B. Ability to move from one place to another C. Reproduction D. Respond to stimuli ...
How Optimized Is the Translational Machinery in
... i.e., the increase in Y, is outstanding (Figure 1). Y will be the same as that in the baseline condition when Q j exactly matches p j , e.g., when Q 1 5 p 1 in Figure 1. The baseline condition therefore seems to guarantee a relatively small Y value over a wide fluctuation of Q j values. Y will be sm ...
... i.e., the increase in Y, is outstanding (Figure 1). Y will be the same as that in the baseline condition when Q j exactly matches p j , e.g., when Q 1 5 p 1 in Figure 1. The baseline condition therefore seems to guarantee a relatively small Y value over a wide fluctuation of Q j values. Y will be sm ...
DDT Persuasive Essay - APES -
... to hunting. Not to say that hunting is tolerable, but it wouldn’t have caused such a dramatic problem in the first place, if the Bald Eagles could safely breed to recover their population. To conclude, the negative ramification that DDT leaves on the environment far outweighed the benefits it provi ...
... to hunting. Not to say that hunting is tolerable, but it wouldn’t have caused such a dramatic problem in the first place, if the Bald Eagles could safely breed to recover their population. To conclude, the negative ramification that DDT leaves on the environment far outweighed the benefits it provi ...
pdf - IUCN Tortoise and Freshwater Turtle Specialist Group
... Ernst and Lovich (2009), and Lindeman (2013). Distribution. — As is typical of the many drainage endemic species in Graptemys, G. versa has among the smaller geographic ranges of turtles in North America (Iverson 1992; Buhlmann et al. 2009; TTWG 2014). The species is endemic to the Colorado River ...
... Ernst and Lovich (2009), and Lindeman (2013). Distribution. — As is typical of the many drainage endemic species in Graptemys, G. versa has among the smaller geographic ranges of turtles in North America (Iverson 1992; Buhlmann et al. 2009; TTWG 2014). The species is endemic to the Colorado River ...
Northern Harrier (Circus cyaneus): A Technical
... Agricultural activities that remove vegetation, such as grazing and mowing, can make habitat unsuitable or lower habitat quality, as well as destroy active nests. Habitat fragmentation also may reduce recruitment by causing higher nest predation rates and increased competition with other predators f ...
... Agricultural activities that remove vegetation, such as grazing and mowing, can make habitat unsuitable or lower habitat quality, as well as destroy active nests. Habitat fragmentation also may reduce recruitment by causing higher nest predation rates and increased competition with other predators f ...
White sturgeon, Shovelnose sturgeon, American Paddlefish U.S.
... of local extirpations. River modification and overfishing have contributed to these declines and the recovery of the population will not be a quick process. Studies on the population size and structure for both shovelnose sturgeon and paddlefish are limited and as a result, uniform management is not ...
... of local extirpations. River modification and overfishing have contributed to these declines and the recovery of the population will not be a quick process. Studies on the population size and structure for both shovelnose sturgeon and paddlefish are limited and as a result, uniform management is not ...
Establishment of a self-propagating population of the African malaria
... ecological complexities that allow vector populations to persist and evade control approaches. Taking the example of African malaria vectors, there is insufficient understanding of mosquito life-history processes that occur outside of the domestic environment (e.g. houses) where they usually bite, i ...
... ecological complexities that allow vector populations to persist and evade control approaches. Taking the example of African malaria vectors, there is insufficient understanding of mosquito life-history processes that occur outside of the domestic environment (e.g. houses) where they usually bite, i ...
reports - UNM Biology Department
... green ash (Fraxinus pennsylvanica, 5%), red maple (Acer rubrum, 4%), and black cherry (Prunus serotina, 1%), with several additional species occurring at ,1% frequency. Combined over the two censuses, 2084 trees were observed. Total number and mean height per plot were analyzed with repeated-measure ...
... green ash (Fraxinus pennsylvanica, 5%), red maple (Acer rubrum, 4%), and black cherry (Prunus serotina, 1%), with several additional species occurring at ,1% frequency. Combined over the two censuses, 2084 trees were observed. Total number and mean height per plot were analyzed with repeated-measure ...
Abstract Effects of Nutrient Availability and Disturbance on the
... Determining how factors such as disturbance and nutrient availability affect species diversity in a community has been a major goal of community ecology. The purpose of this study was to look at how species diversity and composition of soil bacterial communities are affected by nutrient addition and ...
... Determining how factors such as disturbance and nutrient availability affect species diversity in a community has been a major goal of community ecology. The purpose of this study was to look at how species diversity and composition of soil bacterial communities are affected by nutrient addition and ...
Detection of alternative stable states in marine communities
... alternative stable states. Thus demonstrations that an ecosystem can show abrupt shifts in either equilibrium conditions or ecological processes such as recruitment with small changes in environmental parameters are not sufficient tests of alternative stable states. We would also argue that state an ...
... alternative stable states. Thus demonstrations that an ecosystem can show abrupt shifts in either equilibrium conditions or ecological processes such as recruitment with small changes in environmental parameters are not sufficient tests of alternative stable states. We would also argue that state an ...
- ePrints Soton
... dinoflagellates in diverse oceanic plankton communities. Conversely, gene specific primers designed for the amplification of the luciferase gene (lcf) from bacteria [28] and dinoflagellates [23] have detected diverse assemblages of each in natural environments. While the detection of lcf only reveal ...
... dinoflagellates in diverse oceanic plankton communities. Conversely, gene specific primers designed for the amplification of the luciferase gene (lcf) from bacteria [28] and dinoflagellates [23] have detected diverse assemblages of each in natural environments. While the detection of lcf only reveal ...
carrying capacity - Into The Outdoors
... predation, etc.) on a size of a Musky population in Box Lake. You will keep track of this population using pictures and graphs. Rules to Box Lake: 1. Musky eat smaller fish like perch. T ...
... predation, etc.) on a size of a Musky population in Box Lake. You will keep track of this population using pictures and graphs. Rules to Box Lake: 1. Musky eat smaller fish like perch. T ...
View or download: Introduction, methods, results
... Models were deterministic and made no allowance for natural variation in vital rates over time (i.e. stochastic models). Reproductive success is the most well documented aspect of petrel and shearwater biology that demonstrates this natural variation, typically showing wide ...
... Models were deterministic and made no allowance for natural variation in vital rates over time (i.e. stochastic models). Reproductive success is the most well documented aspect of petrel and shearwater biology that demonstrates this natural variation, typically showing wide ...