Animal Dispersal

Animal Dispersal
Author: N.C. Stenseth
Publisher: Springer Science & Business Media
Total Pages: 359
Release: 2012-12-06
Genre: Science
ISBN: 9401123381

4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.

Ecosystem Services from Forest Landscapes

Ecosystem Services from Forest Landscapes
Author: Ajith H. Perera
Publisher: Springer
Total Pages: 273
Release: 2018-03-22
Genre: Science
ISBN: 3319745158

Over the last two decades, the topic of forest ecosystem services has attracted the attention of researchers, land managers, and policy makers around the globe. The services rendered by forest ecosystems range from intrinsic to anthropocentric benefits that are typically grouped as provisioning, regulating, supporting, and cultural. The research efforts, assessments, and attempts to manage forest ecosystems for their sustained services are now widely published in scientific literature. This volume focuses on broad-scale aspects of forest ecosystem services, beyond individual stands to large landscapes. In doing so, it illustrates the conceptual and practical opportunities as well as challenges involved with planning for forest ecosystem services across landscapes, regions, and nations. The goal here is to broaden the scope of land use planning through the adoption of a landscape-scale approach. Even though this approach is complex and involves multiple ecological, social, cultural, economic, and political dimensions, the landscape perspective appears to offer the best opportunity for a sustained provision of forest ecosystem services.

Ecosystem Function in Heterogeneous Landscapes

Ecosystem Function in Heterogeneous Landscapes
Author: Gary M. Lovett
Publisher: Springer Science & Business Media
Total Pages: 528
Release: 2005-12-15
Genre: Science
ISBN: 9780387240893

This groundbreaking work connects the knowledge of system function developed in ecosystem ecology with landscape ecology's knowledge of spatial structure. The book elucidates the challenges faced by ecosystem scientists working in spatially heterogeneous systems, relevant conceptual approaches used in other disciplines and in different ecosystem types, and the importance of spatial heterogeneity in conservation resource management.

Restoration and Reclamation of Boreal Ecosystems

Restoration and Reclamation of Boreal Ecosystems
Author: Dale Vitt
Publisher: Cambridge University Press
Total Pages: 427
Release: 2012-09-20
Genre: Nature
ISBN: 1107015715

Provides the conceptual backbone and specific information necessary for the ecologically sound restoration and sustainable development of boreal ecosystems.

A Systems Analysis of the Global Boreal Forest

A Systems Analysis of the Global Boreal Forest
Author: Herman H. Shugart
Publisher: Cambridge University Press
Total Pages: 584
Release: 2005-03-07
Genre: Nature
ISBN: 9780521619738

The world's boreal forests, which lie to the south of the Arctic, are considered to be the Earth's most significant terrestrial ecosystems. A panel of ecologists here provide a synthesis of the important patterns and processes which occur in boreal forests and review the principal mechanisms which control the forest's patterns.

Ecosystem Management in the Boreal Forest

Ecosystem Management in the Boreal Forest
Author: Sylvie Gauthier
Publisher: PUQ
Total Pages: 574
Release: 2009
Genre: Nature
ISBN: 2760523829

Forest Ecosystem Management. A management approach that aims to maintain healthy and resilient forest ecosystems by focusing on a reduction of differences between natural and managed landscapes to ensure long-term maintenance of ecosystem functions and thereby retain the social and economic benefits they provide to society.That is the definition of forest ecosystem management proposed in this book, which provides a summary of key ecological concepts supporting this approach. The book includes a review of major disturbance regimes that shape the natural dynamics of the boreal forest and gives examples from different Canadian boreal regions. Several projects implementing the forest ecosystem management approach are presented to illustrate the challenges created by current forestry practices and the solutions that this new approach can provide. In short, knowledge and understanding of forest dynamics can serve as a guide for forest management. Planning interventions based on natural dynamics can facilitate reconciliation between forest harvesting needs and the interests of other forest users.

Restoration of Boreal and Temperate Forests

Restoration of Boreal and Temperate Forests
Author: John A. Stanturf
Publisher: CRC Press
Total Pages: 552
Release: 2015-08-14
Genre: Nature
ISBN: 1482211971

Humans have influenced the landscapes and forests throughout the temperate and boreal zones for millennia. Restoration of Boreal and Temperate Forests, Second Edition focuses on the negative impact of human activity, and explains the importance of forest restoration as a way to repair habitat, restore forest structure and function, and counteract t

Alaska's Changing Boreal Forest

Alaska's Changing Boreal Forest
Author: F. Stuart Chapin
Publisher: Oxford University Press
Total Pages: 369
Release: 2006-01-12
Genre: Science
ISBN: 019534832X

The boreal forest is the northern-most woodland biome, whose natural history is rooted in the influence of low temperature and high-latitude. Alaska's boreal forest is now warming as rapidly as the rest of Earth, providing an unprecedented look at how this cold-adapted, fire-prone forest adjusts to change. This volume synthesizes current understanding of the ecology of Alaska's boreal forests and describes their unique features in the context of circumpolar and global patterns. It tells how fire and climate contributed to the biome's current dynamics. As climate warms and permafrost (permanently frozen ground) thaws, the boreal forest may be on the cusp of a major change in state. The editors have gathered a remarkable set of contributors to discuss this swift environmental and biotic transformation. Their chapters cover the properties of the forest, the changes it is undergoing, and the challenges these alterations present to boreal forest managers. In the first section, the reader can absorb the geographic and historical context for understanding the boreal forest. The book then delves into the dynamics of plant and animal communities inhabiting this forest, and the biogeochemical processes that link these organisms. In the last section the authors explore landscape phenomena that operate at larger temporal and spatial scales and integrates the processes described in earlier sections. Much of the research on which this book is based results from the Bonanza Creek Long-Term Ecological Research Program. Here is a synthesis of the substantial literature on Alaska's boreal forest that should be accessible to professional ecologists, students, and the interested public.

The Boreal Forest

The Boreal Forest
Author: L. E. Carmichael
Publisher: Kids Can Press Ltd
Total Pages: 52
Release: 2020-04-07
Genre: Juvenile Nonfiction
ISBN: 1525305190

A unique look at the boreal forest, Earth’s vast and vital wilderness. The boreal forest, the planet’s largest land biome, spans the northern regions like “a scarf around the neck of the world.” Besides providing homes for many species, the forest’s influence is far-reaching: its trees and wetlands clean our air and water and are helping slow global climate change. In this evocative tour, a lyrical fictional narrative is paired with informational sidebars that describe life in the forest throughout the year, from one country to another. One of the world’s most magnificent regions comes to vivid life through the art of storytelling.