The vegetation of Mt Karioi, North Island, New Zealand

Clayton-Greene, K. A.; Wilson, J. Bastow

doi:10.1080/0028825x.1985.10434226

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New Zealand Journal of Botany

1985

DOI: 10.1080/0028825x.1985.10434226

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The vegetation of Mt Karioi, North Island, New Zealand

K. A. Clayton-Greene

J. Bastow Wilson

Abstract: The indigenous forest on Mt Karioi was surveyed in 1974-75 and the data examined using muitivariate techniques. These revealed a number ofrecognisablc communities. Altitude and aspect were the main environmental factors determining plant distribution. An abrupt change in tloristic composition at about 550 m elevation was attributed to fog. The regeneration of many tree species was threatened by a high population of goats. Some floristic differences were also noted between Mt Karioi and other mountains 111 the … Show more

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Cited by 3 publications

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Vascular epiphytes in the temperate zones–a review

Zotz

2005

Plant Ecol

101

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Vascular epiphytes are typically associated with tropical rainforests, whereas their occurrence in temperate forests is little appreciated. This review summarises the available information on epiphytism in the temperate zones ͑ Ͼ 23.5°latitude͒, which has not been reviewed comprehensively for more than a century, and critically analyses the proposed mechanisms behind the observed biogeographical patterns. Although in the temperate zone epiphytic vascular plants are rarely as impressive as in tropical forests, there are noteworthy exceptions. Temperate rain forests of Chile and New Zealand, or montane forests in the Himalayas are comparable to many tropical forests in terms of epiphyte biomass and diversity, but differ in their taxonomic spectrum: temperate epiphyte communities are generally dominated by ferns and fern-allies. Other temperate areas are not, however, necessarily barren of epiphytes, as repeatedly implied. Quite in contrast, local populations of epiphytes in a large number of other non-tropical areas in both the southern and the northern hemisphere can be quite conspicuous. The proposed reasons for the latitudinal gradients in epiphyte abundance and diversity ͑water scarcity or low temperatures͒ are not fully convincing and, moreover, still await experimental verification. Other factors, both historical ͑e.g., Pleistocene extinctions͒ and ecological ͑e.g., prevalence of conifers in the northern hemisphere͒, should also be taken into consideration to obtain a comprehensive explanation of the extant global distribution of vascular epiphytes.

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Vascular epiphytes in the temperate zones–a review

Zotz

2005

Plant Ecol

101

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Forest persistence at coastal Waikato, 24 000 years BP to present

Lees¹,

Neall

Palmer

1998

Journal of the Royal Society of New Zealand

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Two sites on the western Waikato coast were investigated by pollen analysis Airstrip Bog (alt 135 m) contained an unbroken record of Late Otiran vegetation from >23 400 ± 340 years BP to <16 050 ± 180 years BP Cold wet conditions existed between 25 000 and 20 000 years BP Subalpine shrubs grew on the bog and at least two species of Nothofagus on the surrounding hills Low temperatures with increasing aridity followed, and the bog flora was much reduced After 17 200 years BP it became warmer and wetter, Nothofagus extended its range Throughout the last 10 000-year record, coastal lowland species including Ascanna contributed pollen to the spectrum Deep Hole, the second site (2 m a s 1), records the existence of a lagoon developed behind a rock sill subsequent to the high Holocene sea level c 6500 years BP Drainage of the lagoon occurred about 2610 years BP, and the site passed through serai changes until these were interrupted by human intervention Fuscospora pollen was tentatively identified as N truncata Agathis pollen was found only at Deep Hole and only in European times (past 150 years)This study provides the first information on the late Pleistocene vegetation of coastal Waikato and shows the continuity of forest at low altitudes through glacial times It establishes the presence of two species of Nothofagus and indicates that N tiuncata was present in the vicinity of both sites The study supports other work indicating Agathis was still advancing southwards in the past 150 years

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Altitudinal Zonation in the Mountain Forests of Mt Hauhungatahi, North Island, New Zealand

Druitt¹,

Enright²,

Ogden³

1990

Journal of Biogeography

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The vegetation of Mt Karioi, North Island, New Zealand

Cited by 3 publications

References 10 publications

Vascular epiphytes in the temperate zones–a review

Vascular epiphytes in the temperate zones–a review

Forest persistence at coastal Waikato, 24 000 years BP to present

Altitudinal Zonation in the Mountain Forests of Mt Hauhungatahi, North Island, New Zealand

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