東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Vegetation patterns and species dive...

Hickler, Matthew Green.

Linked to FindBook

Google Book

Amazon

博客來

Vegetation patterns and species diversity in floodplain ponds of the Nashua River, north central Massachusetts.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Vegetation patterns and species diversity in floodplain ponds of the Nashua River, north central Massachusetts./
Author:	Hickler, Matthew Green.
Description:	131 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0041.
Contained By:	Dissertation Abstracts International64-01B.
Subject:	Biology, Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3078692
ISBN:	0493997067

Vegetation patterns and species diversity in floodplain ponds of the Nashua River, north central Massachusetts.
Hickler, Matthew Green.

Vegetation patterns and species diversity in floodplain ponds of the Nashua River, north central Massachusetts. - 131 p.

Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0041.

Thesis (Ph.D.)--University of Massachusetts Amherst, 2003.

A literature review and synthesis of floodplain pond ecology indicates that these habitats share many characteristics that set them apart from other wetland and aquatic ecosystems. Floodplain ponds are highly dynamic, non-equilibrium systems characterized by strong spatial and temporal turnover in flora associated with flood-mediated disturbance effects and periodic drought.

ISBN: 0493997067Subjects--Topical Terms:

1017726
Biology, Ecology.

Vegetation patterns and species diversity in floodplain ponds of the Nashua River, north central Massachusetts.
LDR:03138nmm 2200325 4500 001 1861759
005 20041117065605.5
008 130614s2003 eng d
020 $a 0493997067
035 $a (UnM)AAI3078692
035 $a AAI3078692
040 $a UnM $c UnM
100 1 $a Hickler, Matthew Green. $3 1949343
245 1 0 $a Vegetation patterns and species diversity in floodplain ponds of the Nashua River, north central Massachusetts.
300 $a 131 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0041.
500 $a Director: Paul J. Godfrey.
502 $a Thesis (Ph.D.)--University of Massachusetts Amherst, 2003.
520 $a A literature review and synthesis of floodplain pond ecology indicates that these habitats share many characteristics that set them apart from other wetland and aquatic ecosystems. Floodplain ponds are highly dynamic, non-equilibrium systems characterized by strong spatial and temporal turnover in flora associated with flood-mediated disturbance effects and periodic drought.
520 $a Fifteen floodplain ponds on the Nashua River in central Massachusetts were studied over a three-year period. Plant communities were classified. Spatial and temporal patterns in species richness and composition were documented.
520 $a There were few widespread species and many narrowly distributed species. Floristic turnover within ponds averaged 52% per year. Jaccard similarity between ponds averaged 34%. Ponds fell into two distinct richness classes: poor ponds with 46 or fewer species, and rich ponds with 89 or more species. Species richness was dependent on the frequency and duration of growing-season water level fluctuations as controlled by the presence or absence of a channel connection to the river. Summer flooding of periodically flooded shoreline habitats appears to act as a disturbance. Long duration flooding in isolated ponds may be sufficiently intense to reduce diversity, whereas short duration flooding in connected ponds may act as an intermediate intensity disturbance thereby promoting diversity.
520 $a A Monte Carlo simulation of Jaccard similarity coefficients and species frequencies was used to develop a null model for evaluating observed similarities between ponds and the distribution of low-presence species. Species-poor ponds were more similar to each other than expected, whereas comparisons between rich and poor ponds were not different from the null expectation. Floras of species-rich ponds had a disproportionate number of low-presence species.
520 $a All ponds accumulate core floras from a large shared species pool, but species distribution from the pool (i.e. the identities of the species in a specified pond) appears to be stochastic. Rich ponds have their core floras augmented from a pool of species not available to poor ponds.
590 $a School code: 0118.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Biology, Botany. $3 1017825
690 $a 0329
690 $a 0309
710 2 0 $a University of Massachusetts Amherst. $3 1019433
773 0 $t Dissertation Abstracts International $g 64-01B.
790 1 0 $a Godfrey, Paul J., $e advisor
790 $a 0118
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3078692