• Results for
    • Willem Kolvoort
  • (1236)
Water filled ditch with shadow of a tree on water with Fringed waterlily (Nymphoides peltata) Star duckweed (Lemna trisulca) Netherlands. July 2015. Commended in the Underwater World Category of the G...  -  Willem  Kolvoort
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Willem Kolvoort / Water filled ditch with shadow of a tree on water with Fringed waterlily (Nymphoides peltata) Star duckweed (Lemna trisulca) Netherlands. July 2015. Commended in the Underwater World Category of the G...
Green Turtle (Chelonia mydas) hatchling swims towards the deep part of the sea to escape from possible predators, Anse de Mais, West Grande Terre, Aldabra, Indian Ocean  -  Willem  Kolvoort
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Willem Kolvoort / Green Turtle (Chelonia mydas) hatchling swims towards the deep part of the sea to escape from possible predators, Anse de Mais, West Grande Terre, Aldabra, Indian Ocean
Green Turtle (Chelonia mydas) hatchling swims towards the deep part of the sea to escape from possible predators, Anse de Mais, West Grande Terre, Aldabra, Indian Ocean  -  Willem  Kolvoort
01532580
Willem Kolvoort / Green Turtle (Chelonia mydas) hatchling swims towards the deep part of the sea to escape from possible predators, Anse de Mais, West Grande Terre, Aldabra, Indian Ocean
Green Turtle (Chelonia mydas) hatchling swims towards the deep part of the sea to escape from possible predators, Anse de Mais, West Grande Terre, Aldabra, Indian Ocean  -  Willem  Kolvoort
01532578
Willem Kolvoort / Green Turtle (Chelonia mydas) hatchling swims towards the deep part of the sea to escape from possible predators, Anse de Mais, West Grande Terre, Aldabra, Indian Ocean
Split level view of young mangrove shoots, Passe Grande Magnan / Magnan channel, Aldabra, Indian Ocean  -  Willem  Kolvoort
01532527
Willem Kolvoort / Split level view of young mangrove shoots, Passe Grande Magnan / Magnan channel, Aldabra, Indian Ocean
Aldabra giant tortoise (Aldabrachelys gigantea) swimming in Passe Grande Magnan / Magnan channel, Aldabra, Indian Ocean Image taken under controlled conditions.  -  Willem  Kolvoort
01532525
Willem Kolvoort / Aldabra giant tortoise (Aldabrachelys gigantea) swimming in Passe Grande Magnan / Magnan channel, Aldabra, Indian Ocean Image taken under controlled conditions.
Split level view of Aldabra giant tortoise (Aldabrachelys gigantea) swimming in Passe Grande Magnan / Magnan channel, Aldabra, Indian Ocean Image taken under controlled conditions.  -  Willem  Kolvoort
01532524
Willem Kolvoort / Split level view of Aldabra giant tortoise (Aldabrachelys gigantea) swimming in Passe Grande Magnan / Magnan channel, Aldabra, Indian Ocean Image taken under controlled conditions.
White waterlily (Nymphaea alba) in Naardermeer bog lake, Holland. May.  -  Willem  Kolvoort
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Willem Kolvoort / White waterlily (Nymphaea alba) in Naardermeer bog lake, Holland. May.
View of Byoutier. a very small island in the Seychelles with a pristine beach. Byoutier, Seychelles March 2005  -  Willem  Kolvoort
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Willem Kolvoort / View of Byoutier. a very small island in the Seychelles with a pristine beach. Byoutier, Seychelles March 2005
Water lily (Nymphaea rudgeana) leaves viewed from below in a black water creek. Suriname, October.  -  Willem  Kolvoort
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Willem Kolvoort / Water lily (Nymphaea rudgeana) leaves viewed from below in a black water creek. Suriname, October.
Tetra (Moenkhausia surinamensis) under Apinagia leaves. Awadan rapids, Gran Rio, Suriname, September.  -  Willem  Kolvoort
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Willem Kolvoort / Tetra (Moenkhausia surinamensis) under Apinagia leaves. Awadan rapids, Gran Rio, Suriname, September.
Aquatic plants and algae in river, River Black Drim, Albania, Eastern Europe, May 2009  -  Willem Kolvoort
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Willem Kolvoort / Aquatic plants and algae in river, River Black Drim, Albania, Eastern Europe, May 2009
Aquatic plants on river bed, River Black Drim, Albania, Eastern Europe, May 2009  -  Willem Kolvoort
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Willem Kolvoort / Aquatic plants on river bed, River Black Drim, Albania, Eastern Europe, May 2009
Aquatic plants in River Black Drim, Albania, Eastern Europe, May  -  Willem Kolvoort
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Willem Kolvoort / Aquatic plants in River Black Drim, Albania, Eastern Europe, May
Underwater freshwater springs in the River Black Drim, Albania, Eastern Europe, May 2009  -  Willem Kolvoort
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Willem Kolvoort / Underwater freshwater springs in the River Black Drim, Albania, Eastern Europe, May 2009
Silhouette of immature European edible frog (Rana esculenta) on top of waterlily leaf, tail stump still visible, garden pond, Holland  -  Willem Kolvoort
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Willem Kolvoort / Silhouette of immature European edible frog (Rana esculenta) on top of waterlily leaf, tail stump still visible, garden pond, Holland
Split level view of White water lily (Nymphaea alba) flowering at surface with windmill behind, Lake Naarden, Holland  -  Willem Kolvoort
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Willem Kolvoort / Split level view of White water lily (Nymphaea alba) flowering at surface with windmill behind, Lake Naarden, Holland
Tadpoles of Common frog (Rana temporaria) amongst reed stems in sand winning pit, Holland  -  Willem Kolvoort
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Willem Kolvoort / Tadpoles of Common frog (Rana temporaria) amongst reed stems in sand winning pit, Holland
Common frogs (Rana temporaria) mating out of water, Holland  -  Willem Kolvoort
01159689
Willem Kolvoort / Common frogs (Rana temporaria) mating out of water, Holland
Common frogs (Rana temporaria) mating amongst  a mass of frogspawn, Holland  -  Willem Kolvoort
01159684
Willem Kolvoort / Common frogs (Rana temporaria) mating amongst a mass of frogspawn, Holland
Common toad (Bufo bufo) tadpoles amongst algae and reedstems in small lake. Netherlands.  -  Willem  Kolvoort
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Willem Kolvoort / Common toad (Bufo bufo) tadpoles amongst algae and reedstems in small lake. Netherlands.
Edible frog (Pelophylax esculentus) frogspawn amongst Common water-crowfoot (Ranunculus aquatilis) in garden pond. Netherlands. May.  -  Willem  Kolvoort
01615151
Willem Kolvoort / Edible frog (Pelophylax esculentus) frogspawn amongst Common water-crowfoot (Ranunculus aquatilis) in garden pond. Netherlands. May.
Mating edible frogs (Pelophylax esculentus) in garden pond. Netherlands. May.  -  Willem  Kolvoort
01615150
Willem Kolvoort / Mating edible frogs (Pelophylax esculentus) in garden pond. Netherlands. May.
Common toad (Bufo bufo) tadpoles amongst stonewort in ditch. Netherlands. May.  -  Willem  Kolvoort
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Willem Kolvoort / Common toad (Bufo bufo) tadpoles amongst stonewort in ditch. Netherlands. May.
Common frog (Rana temporaria) male attempting to mate with Barbel fish (Barbus barbus). Netherlands. Captive.  -  Willem  Kolvoort
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Willem Kolvoort / Common frog (Rana temporaria) male attempting to mate with Barbel fish (Barbus barbus). Netherlands. Captive.
Great crested newt (Triturus cristatus) eggs between folded plant leaves. In a garden pond, Netherlands. April.  -  Willem  Kolvoort
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Willem Kolvoort / Great crested newt (Triturus cristatus) eggs between folded plant leaves. In a garden pond, Netherlands. April.
Common newt (Lissotriton vulgaris), pair amongst White waterlily (Nymphaea alba) leaves. Garden pond, Netherlands. April.  -  Willem  Kolvoort
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Willem Kolvoort / Common newt (Lissotriton vulgaris), pair amongst White waterlily (Nymphaea alba) leaves. Garden pond, Netherlands. April.
Common toad (Bufo bufo) tadpoles amongst Perfoliate pondweed (Potamogeton perfoliatus) in ditch. Netherlands. May.  -  Willem  Kolvoort
01615145
Willem Kolvoort / Common toad (Bufo bufo) tadpoles amongst Perfoliate pondweed (Potamogeton perfoliatus) in ditch. Netherlands. May.
Common toad (Bufo bufo) tadpoles amongst ditch vegetation. Netherlands. May.  -  Willem  Kolvoort
01615144
Willem Kolvoort / Common toad (Bufo bufo) tadpoles amongst ditch vegetation. Netherlands. May.
Common newt (Lissotriton vulgaris) female amongst Shining pondweed (Potamogeton lucens) in garden pond. Netherlands. April.  -  Willem  Kolvoort
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Willem Kolvoort / Common newt (Lissotriton vulgaris) female amongst Shining pondweed (Potamogeton lucens) in garden pond. Netherlands. April.
Great crested newt (Triturus cristatus) male in garden pond. Netherlands. April.  -  Willem  Kolvoort
01615142
Willem Kolvoort / Great crested newt (Triturus cristatus) male in garden pond. Netherlands. April.
Great crested newt (Triturus cristatus) female egg laying amongst water plants. In garden pond, Netherlands. April.  -  Willem  Kolvoort
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Willem Kolvoort / Great crested newt (Triturus cristatus) female egg laying amongst water plants. In garden pond, Netherlands. April.
Common newt (Lissotriton vulgaris) male amongst water plants in garden pond. Netherlands. April.  -  Willem  Kolvoort
01615140
Willem Kolvoort / Common newt (Lissotriton vulgaris) male amongst water plants in garden pond. Netherlands. April.
Common newt (Lissotriton vulgaris) pair approaching each other on Spiked water-milfoil (Myriophyllum spicatum) prior to mating. In garden pond, Netherlands. April.  -  Willem  Kolvoort
01615139
Willem Kolvoort / Common newt (Lissotriton vulgaris) pair approaching each other on Spiked water-milfoil (Myriophyllum spicatum) prior to mating. In garden pond, Netherlands. April.
Great crested newt (Triturus cristatus) pair approaching each other prior to mating. In garden pond, Netherlands. April.  -  Willem  Kolvoort
01615138
Willem Kolvoort / Great crested newt (Triturus cristatus) pair approaching each other prior to mating. In garden pond, Netherlands. April.
Common toad (Bufo bufo) resting on bottom of lake. Netherlands. April.  -  Willem  Kolvoort
01615137
Willem Kolvoort / Common toad (Bufo bufo) resting on bottom of lake. Netherlands. April.
Common newt (Lissotriton vulgaris) pair prior to mating amongst water plants in garden pond. Netherlands. April.  -  Willem  Kolvoort
01615136
Willem Kolvoort / Common newt (Lissotriton vulgaris) pair prior to mating amongst water plants in garden pond. Netherlands. April.
Common toad (Bufo bufo), male attempting to mate with dead Common frog (Rana temporaria) in lake. Netherlands. Small repro only.  -  Willem  Kolvoort
01615135
Willem Kolvoort / Common toad (Bufo bufo), male attempting to mate with dead Common frog (Rana temporaria) in lake. Netherlands. Small repro only.
Common toad (Bufo bufo) tadpoles eating algae on Floating pondweed (Potamogeton natans). Netherlands. May.  -  Willem  Kolvoort
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Willem Kolvoort / Common toad (Bufo bufo) tadpoles eating algae on Floating pondweed (Potamogeton natans). Netherlands. May.
Common toad (Bufo bufo) tadpoles amongst algae. Netherlands.  -  Willem  Kolvoort
01615133
Willem Kolvoort / Common toad (Bufo bufo) tadpoles amongst algae. Netherlands.
Sinkhole on the Kugitang plain, Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
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Willem Kolvoort / Sinkhole on the Kugitang plain, Turkmenistan, 1990. Small repro only.
Sinkhole on the Kugitang plain, Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
01577596
Willem Kolvoort / Sinkhole on the Kugitang plain, Turkmenistan, 1990. Small repro only.
Sinkhole on the Kugitang plain, Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
01577595
Willem Kolvoort / Sinkhole on the Kugitang plain, Turkmenistan, 1990. Small repro only.
People diving in a sinkhole, Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
01577594
Willem Kolvoort / People diving in a sinkhole, Turkmenistan, 1990. Small repro only.
Diving in a sinkhole. Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
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Willem Kolvoort / Diving in a sinkhole. Turkmenistan, 1990. Small repro only.
People diving in blind loach cave. Turkmenistan. Small repro only.  -  Willem  Kolvoort
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Willem Kolvoort / People diving in blind loach cave. Turkmenistan. Small repro only.
Sinkhole on the Kugitang Plain, Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
01577591
Willem Kolvoort / Sinkhole on the Kugitang Plain, Turkmenistan, 1990. Small repro only.
Salt crystals on the ground of the Kugitang Plain, Turkmenistan, 1990. Small repro only.  -  Willem  Kolvoort
01577590
Willem Kolvoort / Salt crystals on the ground of the Kugitang Plain, Turkmenistan, 1990. Small repro only.
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