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The conceptual models and management and community needs for
The conceptual models and management and community needs for

... ii. Workshop 2 (May 15-17, 2012, Anchorage, Alaska, USA) - Designing an Integrated Arctic Terrestrial Biodiversity Monitoring Plan .............................................................................................................................191 ...
J. John Sepkoski, Jr.
J. John Sepkoski, Jr.

... In discussing biological diversity, Norse (1993) considers hierarchical levels that range from genetic to species to ecosystem. Stress appears to decrease community diversity, often also decreasing the number of species within an individual function, such as primary production. It is critical to con ...
Community ecology and logging responses of Southeast Asian
Community ecology and logging responses of Southeast Asian

... remains after logging. Most animal species persist in logged forests, at least temporarily and at least after one round of logging. Research into which species respond with decreases in density (the number of individuals per unit area) offers insight which species may be or become of conservation co ...
The Keystone Role of Bison in North American Tallgrass Prairie
The Keystone Role of Bison in North American Tallgrass Prairie

... with deeper soils (and therefore greater soil moisture and plant productivity; Knapp et al. 1993) in burned watersheds become preferred grazing locations as the uplands dry. This preference for burned areas in tallgrass prairie is consistent with postfire responses in mixed grass prairie (Coppock an ...
Conservation Biology for All
Conservation Biology for All

... All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission in writing of Oxford University Press, or as expressly permitted by law, or under terms agreed with the appropriate reprographic ...
The Grassland Natural Region of Alberta
The Grassland Natural Region of Alberta

... This draft report was prepared by staff of Environmental Protection and has not undergone review by professionals in the fields of protected areas, natural history and prairie conservation. It is intended to provide background information on the Grassland Natural Region from a protected areas perspe ...
NOBANIS –Invasive Alien Species Fact Sheet Neovison vison
NOBANIS –Invasive Alien Species Fact Sheet Neovison vison

... wild live for only one year (Stubbe 1988). In western Poland daily survival rate in each season declined from 0,989 in autumn-winter to 0,977 in spring. The probability that N.vison would survive the whole season is only 0,1351 in autumn-winter and decreases to 0,1203 in spring. Many N. vison are ki ...
Evolutionary Conservation Biology
Evolutionary Conservation Biology

... longer afford to ignore them. To tackle this challenge, currently disparate areas of conservation biology ought to be integrated into a unified framework. Bringing together conservation genetics, demography, and ecology, this book introduces evolutionary conservation biology as an integrative approa ...
the round goby - McGill University
the round goby - McGill University

... invading species can be limited by aggressive behavioral interactions with other invaders (e.g. Zheng et al. 2008; James et al. 2016; Kobak et al. 2016). The round goby and several Orconectes species of crayfish are highly successful invaders owing, in part, to their aggressive behaviour (Dubs and C ...
Interactions between feral cats, foxes, native carnivores, and rabbits
Interactions between feral cats, foxes, native carnivores, and rabbits

... arid and semi-arid environments have been relatively well studied in comparison to more temperate parts of Australia. Our level of understanding of these interactions and the impact on native species in arid and semi-arid and temperate environments is less well understood. In temperate environments ...
TEMG_plan_draft_semifinal_2013_02_15
TEMG_plan_draft_semifinal_2013_02_15

... biological, chemical, and physical balance of the globe. Dramatic changes in regional climates, and increasing industrial development and other activities, now underway, are threatening Arctic biodiversity, the resilience of species, the potential for human use, and the overall integrity of northern ...
Trophic effects through herbivory at Ningaloo Reef
Trophic effects through herbivory at Ningaloo Reef

... and commercial fishing”. A spatial management strategy has been established using range of management zones, including sanctuary zones, to achieve this objective. To inform management of the park, a large research programme was established within the Western Australian Marine Science Institute (WAMS ...
Mechanisms and mitigation of food web change in stream ecosystems
Mechanisms and mitigation of food web change in stream ecosystems

... of available energy from externally-produced (allochthonous) to internal (autochthonous) basal resources. Such shis are frequently associated with land-use intensification, due to riparian vegetation removal and increased nutrient inputs, both of which enhance autochthonous production. A field survey ...
Invasion Dynamics of a Non-indigenous bivalve, Nuttallia obscurata
Invasion Dynamics of a Non-indigenous bivalve, Nuttallia obscurata

... clam larvae are comparable to native species, however the planktonic phase is slightly longer (3-8 weeks). Based on local oceanographic circulation, varnish clam larvae have the potential to disperse throughout their entire geographic range in just one reproductive season. Varnish clam population su ...
The Ecology, Impacts, and Control of Crassula helmsii Clare E. Dean
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... a field based experiment were separately conducted, both assessing how well C. helmsii could spread into available bare ground compared to native competitors, and addressing the question: Is available bare ground an important pre-requisite to high C. helmsii abundance? These experiments found that C ...
FOR THE SOUTHERN DESIGNATABLE UNIT
FOR THE SOUTHERN DESIGNATABLE UNIT

...  The demersal juvenile stage (4 – 35cm long) is the most habitat-dependant period in the lifecycle of Atlantic Cod. Physical disturbance of structural components of habitat can reduce its value and increase mortality of juvenile cod. Existing data lack the spatial resolution required to evaluate th ...
The habitat function of mangroves for terrestrial and marine fauna: A
The habitat function of mangroves for terrestrial and marine fauna: A

... value of mangroves and other estuarine habitats for these animals requires knowledge of their life history, physiology and ecology as they interact across the dynamic mosaic of available habitats. Evidence suggests that mangroves are important to these species, but a lack of research is a major impe ...
Infralittoral biotopes - The Marine Life Information Network
Infralittoral biotopes - The Marine Life Information Network

... composed of species that are normally fully immersed. If emergence increased by the equivalent of a change in one zone in already lower shore examples of the biotope, several species would be likely to be killed. For recoverability, see additional information below. ...
(pdf)
(pdf)

... Without exception, the low CO2 assemblages contained a significantly greater abundance of nanoflagellates (Phaeocystis sp.) relative to diatoms (Fig. 1d). In freshly collected samples from low CO2 bottles, we observed a number of early-stage Phaeocystis colonies, mostly 4 cell clusters, but these we ...
Behavioural ecology of the black-flanked rock
Behavioural ecology of the black-flanked rock

... and adverse climatic conditions, there was still little understanding of how these animals utilise this important resource, particularly in highly variable environments. There is a long-standing premise in behavioural ecology that highly variable environments can significantly affect the behaviour a ...
Impact of global change on biodiversity and biogeochemical cycles
Impact of global change on biodiversity and biogeochemical cycles

... Functional diversity of Central European tree species – Traits, trade-offs and ecological groups ............... 75 Christoph Leuschner ............................................................................................................................ 75 Functional role of tree biodiversity ...
the effects of sedimentation on rocky coast assemblages
the effects of sedimentation on rocky coast assemblages

... sources of sediments (e.g. Moore 1977 and references therein, Fornos et al. 1992), but there do not appear to be specific examples relative to rocky coasts. River catchment of land-derived materials from natural soil erosion and runoff is a major input of sediments to coastal areas (Moore 1973a, Fre ...
VI) Population and Community Stability
VI) Population and Community Stability

... (i.e. little variation in species composition and relative abundance over time) B) Apply a force – does it change?  see graphic definition of resistance C) Apply a disturbance (i.e. change the community) Determine if community returns to pre-perturbation or control state.  see graphic definition o ...
effects of habitat fragmentation on biodiversity
effects of habitat fragmentation on biodiversity

... habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat can be removed from a landscape in many different ways, resulting in many differen ...
Patterns of distribution and abundance of larval fish in a southern
Patterns of distribution and abundance of larval fish in a southern

... coast of the South Island of New Zealand, was investigated over a four year period (1994 - 1997). Spatial and temporal variability were described on both broad and fine scales. Larval fish assemblages at four stations along an offshore transect were sampled fortnightly over an eighteen month period. ...
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Occupancy–abundance relationship

In ecology, the occupancy–abundance (O–A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well-documented relationships in macroecology, and applies both intra- and interspecifically (within and among species). In most cases, the O–A relationship is a positive relationship. Although an O–A relationship would be expected, given that a species colonizing a region must pass through the origin (zero abundance, zero occupancy) and could reach some theoretical maximum abundance and distribution (that is, occupancy and abundance can be expected to co-vary), the relationship described here is somewhat more substantial, in that observed changes in range are associated with greater-than-proportional changes in abundance. Although this relationship appears to be pervasive (e.g. Gaston 1996 and references therein), and has important implications for the conservation of endangered species, the mechanism(s) underlying it remain poorly understood
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